阅读说明：本技术 真空烹饪装置及其控制方法 (Vacuum cooking apparatus and control method thereof ) 是由 姚亮 邢凤雷 许智波 吴慧民 唐燕 于 2018-08-28 设计创作，主要内容包括：本发明公开了一种真空烹饪装置及其控制方法,真空烹饪装置包括：外壳体；内胆,内胆内限定出顶部敞开的容纳腔以用于盛放所需烹饪的食物；盖体,盖体用以打开或关闭容纳腔；真空装置,用于在容纳腔密闭时对容纳腔进行抽真空以使容纳腔内形成负压；加热装置,加热装置对容纳腔进行加热；真空度检测装置,用于在烹饪过程中检测容纳腔内的真空度,其中,烹饪过程包含烘烤阶段；控制装置,控制装置与真空装置和真空度检测装置相连,控制装置用于获取预设真空度范围,并在真空烹饪装置进入烘烤阶段时控制真空装置进行抽真空,直至容纳腔内的真空度处于预设真空度范围时,控制加热装置进行加热工作,从而能有效控制烹饪效果,满足用户的多方面需求。(The invention discloses a vacuum cooking device and a control method thereof, wherein the vacuum cooking device comprises: an outer housing; the inner container is internally provided with a containing cavity with an open top for containing food to be cooked; the cover body is used for opening or closing the accommodating cavity; the vacuum device is used for vacuumizing the accommodating cavity when the accommodating cavity is closed so as to form negative pressure in the accommodating cavity; the heating device heats the accommodating cavity; the vacuum degree detection device is used for detecting the vacuum degree in the accommodating cavity in the cooking process, wherein the cooking process comprises a baking stage; controlling means, controlling means links to each other with vacuum apparatus and vacuum detection device, and controlling means is used for acquireing and predetermines the vacuum scope to control vacuum apparatus when vacuum cooking device gets into toasts the stage and carry out the evacuation, when the vacuum that holds the intracavity is in predetermineeing the vacuum scope, control heating device heats work, thereby can effective control culinary art effect, satisfy user's many-sided demand.)

1. A vacuum cooking device, comprising:

an outer housing defining a cooking chamber therein;

the inner container is arranged in the cooking cavity, and an accommodating cavity with an open top is defined in the inner container and used for accommodating food to be cooked;

the cover body is used for opening or closing the accommodating cavity;

the vacuum device is used for vacuumizing the accommodating cavity when the accommodating cavity is closed so as to form negative pressure in the accommodating cavity;

the heating device heats the accommodating cavity;

a vacuum degree detection device for detecting the vacuum degree in the accommodating cavity in the cooking process, wherein the cooking process comprises a baking stage;

and the control device is connected with the vacuum device and the vacuum degree detection device, and is used for acquiring a preset vacuum degree range, controlling the vacuum device to vacuumize when the vacuum cooking device enters the baking stage, and controlling the heating device to heat until the vacuum degree in the accommodating cavity is within the preset vacuum degree range.

2. The vacuum cooking apparatus of claim 1, wherein the control means receives a cooking effect and/or a cooking mode selected by a user through a control panel and determines the preset vacuum degree range according to the cooking effect and/or the cooking mode selected by the user.

3. The vacuum cooking apparatus of claim 2, wherein the control panel has a plurality of cooking effects and/or a plurality of cooking modes, and the control device pre-stores a plurality of oxygen content ranges, wherein the control device determines a corresponding oxygen content range according to the cooking effect and/or cooking mode selected by the user, and determines the preset vacuum degree range according to the corresponding oxygen content range.

4. The vacuum cooking device of claim 3, wherein the cooking profile includes making bread and making nuts, wherein,

when the cooking mode is bread making and the cooking effect is thin-skin bread, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L;

when the cooking mode is bread making and the cooking effect is thick-skin bread, the preset vacuum degree range is 50 Kpa-70 Kpa, and the oxygen content range is 155 mg/L-217 mg/L;

when the cooking mode is to make nuts, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L.

5. The vacuum cooking device of claim 4, further comprising a stirring device, wherein,

when the cooking mode is the bread making mode, the control device controls the heating device to maintain the temperature in the accommodating cavity at a first baking temperature when the vacuum cooking device is in a baking stage;

when the cooking mode is nut making, the control device controls the heating device to maintain the temperature in the containing cavity at a first baking temperature and controls the stirring device to stir when the vacuum cooking device is in a baking stage.

6. The vacuum cooking apparatus according to any one of claims 1 to 5, further comprising an oxygen content measuring device provided to the lid body, the oxygen content measuring device measuring the oxygen content in the containing chamber.

7. The vacuum cooking apparatus of claim 1, wherein the cover includes an outer cover disposed on the outer housing to open or close the receiving cavity; and/or the presence of a gas in the gas,

and a sealing ring is arranged between the cover body and the inner container.

8. The vacuum cooking apparatus of claim 1, wherein the cover includes an outer cover disposed on the outer housing and an inner cover disposed within the cooking cavity, the inner cover being configured to open or close the receiving cavity.

9. The vacuum cooking device of claim 8, wherein the inner lid is movably attached to the inner side wall of the cooking chamber.

10. The vacuum cooking device as claimed in claim 8 or 9, wherein a connecting structure is provided between the inner container and the inner lid to fix the inner lid to the inner container when the inner lid is in a state of closing the receiving cavity.

11. A control method of a vacuum cooking device is characterized in that the vacuum cooking device comprises an outer shell, an inner container, a cover body, a heating device and a vacuum device, a cooking cavity is defined in the outer shell, the inner container is arranged in the cooking cavity, a containing cavity with an open top is defined in the inner container and used for containing food to be cooked, the cover body is used for opening or closing the containing cavity, the heating device heats the containing cavity, the vacuum device is used for vacuumizing the containing cavity when the containing cavity is closed so as to enable negative pressure to be formed in the containing cavity, and the method comprises the following steps:

detecting a vacuum level within the containment chamber during a cooking process, wherein the cooking process includes a toasting phase;

acquiring a preset vacuum degree range;

and when the vacuum cooking device enters a baking stage, controlling the vacuum device to vacuumize, and controlling the heating device to heat until the vacuum degree in the accommodating cavity is within the preset vacuum degree range.

12. The control method of the vacuum cooking apparatus according to claim 11, further comprising:

receiving a cooking effect and/or a cooking mode selected by a user through a control panel;

and determining the preset vacuum degree range according to the cooking effect and/or the cooking mode selected by the user.

13. The method of claim 12, wherein the control panel has a plurality of cooking effects and/or a plurality of cooking modes, and the control device pre-stores a plurality of oxygen content ranges, wherein the determining the preset vacuum level range according to the cooking effect and/or cooking mode selected by the user comprises:

determining a corresponding oxygen content range according to the cooking effect and/or the cooking mode selected by the user;

and determining the preset vacuum degree range according to the corresponding oxygen content range.

14. The method of controlling a vacuum cooking apparatus according to claim 13, wherein the cooking mode includes making bread and making nuts, wherein,

when the cooking mode is bread making and the cooking effect is thin-skin bread, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L;

when the cooking mode is bread making and the cooking effect is thick-skin bread, the preset vacuum degree range is 50 Kpa-70 Kpa, and the oxygen content range is 155 mg/L-217 mg/L;

when the cooking mode is to make nuts, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L.

15. The control method of the vacuum cooking apparatus according to claim 14, wherein the vacuum cooking apparatus further comprises a stirring device, wherein,

when the cooking mode is the bread making, when the vacuum cooking device is in a baking stage, controlling the heating device to maintain the temperature in the accommodating cavity at a first baking temperature;

when the cooking mode is nut making, when the vacuum cooking device is in a baking stage, the heating device is controlled to maintain the temperature in the accommodating cavity at a first baking temperature, and the stirring device is controlled to stir.

Technical Field

The invention relates to the technical field of household appliances, in particular to a vacuum cooking device and a control method of the vacuum cooking device.

Background

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a vacuum cooking apparatus capable of satisfying a cooking effect required by a user.

The invention also provides a control method of the vacuum cooking device.

A vacuum cooking apparatus according to an embodiment of a first aspect of the present invention includes: an outer housing defining a cooking chamber therein; the inner container is arranged in the cooking cavity, and an accommodating cavity with an open top is defined in the inner container and used for accommodating food to be cooked; the cover body is used for opening or closing the accommodating cavity; the vacuum device is used for vacuumizing the accommodating cavity when the accommodating cavity is closed so as to form negative pressure in the accommodating cavity; the heating device heats the accommodating cavity; a vacuum degree detection device for detecting the vacuum degree in the accommodating cavity in the cooking process, wherein the cooking process comprises a baking stage; and the control device is connected with the vacuum device and the vacuum degree detection device, and is used for acquiring a preset vacuum degree range, controlling the vacuum device to vacuumize when the vacuum cooking device enters the baking stage, and controlling the heating device to heat until the vacuum degree in the accommodating cavity is within the preset vacuum degree range.

According to the vacuum cooking device provided by the embodiment of the invention, the control device acquires the preset vacuum degree range, controls the vacuum device to vacuumize when the vacuum cooking device enters the baking stage, and controls the heating device to perform heating work until the vacuum degree in the accommodating cavity is within the preset vacuum degree range, so that the cooking effect in the cooking cavity can be effectively controlled, the various requirements of a user are met, and the user experience is improved.

In addition, the vacuum cooking apparatus according to the embodiment of the present invention may further have the following additional technical features:

according to one embodiment of the present invention, the control device receives a cooking effect and/or a cooking mode selected by a user through a control panel, and determines the preset vacuum degree range according to the cooking effect and/or the cooking mode selected by the user.

According to an embodiment of the present invention, the control panel has a plurality of cooking effects and/or a plurality of cooking modes, and the control device pre-stores a plurality of oxygen content ranges, wherein the control device determines a corresponding oxygen content range according to the cooking effect and/or the cooking mode selected by the user, and determines the preset vacuum degree range according to the corresponding oxygen content range.

According to an embodiment of the present invention, the cooking mode includes making bread and making nuts, wherein when the cooking mode is the making bread and the cooking effect is thin-skinned bread, the preset vacuum range is 10Kpa to 30Kpa, and the oxygen content range is 31mg/L to 93 mg/L; when the cooking mode is bread making and the cooking effect is thick-skin bread, the preset vacuum degree range is 50 Kpa-70 Kpa, and the oxygen content range is 155 mg/L-217 mg/L; when the cooking mode is to make nuts, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L.

According to an embodiment of the present invention, the vacuum cooking apparatus further comprises a stirring device, wherein when the cooking mode is the making of bread, the control device controls the heating device to maintain the temperature in the containing cavity at a first baking temperature when the vacuum cooking apparatus is in a baking stage; when the cooking mode is nut making, the control device controls the heating device to maintain the temperature in the containing cavity at a first baking temperature and controls the stirring device to stir when the vacuum cooking device is in a baking stage.

According to an embodiment of the present invention, the vacuum cooking apparatus further includes an oxygen content measuring device disposed on the cover, and the oxygen content measuring device measures the oxygen content in the accommodating chamber.

According to an embodiment of the present invention, the cover includes an outer cover provided on the outer case to open or close the accommodation chamber.

According to an embodiment of the present invention, the cover body includes an outer cover disposed on the outer case and an inner cover disposed in the cooking cavity to open or close the receiving cavity.

According to one embodiment of the present invention, the inner lid is movably attached to an inner sidewall of the cooking chamber.

According to one embodiment of the invention, a connecting structure is arranged between the inner container and the inner cover so as to fix the inner cover on the inner container when the inner cover is in a state of closing the accommodating cavity.

According to one embodiment of the invention, a sealing ring is arranged between the cover body and the inner container.

According to one embodiment of the present invention, the inner cover is provided with an air exhaust port communicated with the accommodating cavity, the outer cover is provided with an air exhaust port communicated with the external environment, the vacuum device comprises a vacuum pump, an air inlet of the vacuum pump is communicated with the air exhaust port, and an air outlet of the vacuum pump is communicated with the air exhaust port.

According to one embodiment of the invention, the vacuum device further comprises a control valve connected between the pumping port and the vacuum pump to control the on-off between the pumping port and the vacuum pump.

According to the control method of the vacuum cooking device in the second aspect of the invention, the vacuum cooking device comprises an outer shell, an inner container, a cover body, a heating device and a vacuum device, wherein a cooking cavity is defined in the outer shell, the inner container is arranged in the cooking cavity, a containing cavity with an open top is defined in the inner container for containing food to be cooked, the cover body is used for opening or closing the containing cavity, the heating device heats the containing cavity, and the vacuum device is used for vacuumizing the containing cavity when the containing cavity is closed so as to form negative pressure in the containing cavity, the method comprises the following steps: detecting a vacuum level within the containment chamber during a cooking process, wherein the cooking process includes a toasting phase; acquiring a preset vacuum degree range; and when the vacuum cooking device enters a baking stage, controlling the vacuum device to vacuumize, and controlling the heating device to heat until the vacuum degree in the accommodating cavity is within the preset vacuum degree range.

According to the control method of the vacuum cooking device, before the vacuum cooking device enters the baking stage, the vacuum device is controlled to vacuumize, and when the vacuum degree in the accommodating cavity is within the preset vacuum degree range, the heating device is controlled to heat, so that the cooking effect in the cooking cavity can be effectively controlled, various requirements of a user are met, and the user experience is improved.

In addition, the control method of the vacuum cooking apparatus according to the embodiment of the present invention may further have the following additional technical features:

according to an embodiment of the present invention, the control method of the vacuum cooking apparatus further includes: receiving a cooking effect and/or a cooking mode selected by a user through a control panel; and determining the preset vacuum degree range according to the cooking effect and/or the cooking mode selected by the user.

According to an embodiment of the present invention, the control panel has a plurality of cooking effects and/or a plurality of cooking modes, and the control device prestores a plurality of oxygen content ranges, wherein the determining the preset vacuum degree range according to the cooking effect and/or the cooking mode selected by the user includes: determining a corresponding oxygen content range according to the cooking effect and/or the cooking mode selected by the user; and determining the preset vacuum degree range according to the corresponding oxygen content range.

According to an embodiment of the present invention, the cooking mode includes making bread and making nuts, wherein when the cooking mode is the making bread and the cooking effect is thin-skinned bread, the preset vacuum range is 10Kpa to 30Kpa, and the oxygen content range is 31mg/L to 93 mg/L; when the cooking mode is bread making and the cooking effect is thick-skin bread, the preset vacuum degree range is 50 Kpa-70 Kpa, and the oxygen content range is 155 mg/L-217 mg/L; when the cooking mode is to make nuts, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L.

According to an embodiment of the present invention, the vacuum cooking apparatus further comprises a stirring device, wherein when the cooking mode is the making of bread, the heating device is controlled to maintain the temperature in the containing cavity at a first baking temperature when the vacuum cooking apparatus is in a baking stage; when the cooking mode is nut making, when the vacuum cooking device is in a baking stage, the heating device is controlled to maintain the temperature in the accommodating cavity at a first baking temperature, and the stirring device is controlled to stir.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a block schematic diagram of a vacuum cooking apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a vacuum bread maker according to an embodiment of the present invention;

fig. 3 is a sectional view of a vacuum bread maker according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the structure circled at A in FIG. 3;

FIG. 5 is a schematic structural view of a vacuum bread maker according to an embodiment of the present invention, in a state where an outer lid is opened;

FIG. 6 is an enlarged view of the structure circled at B in FIG. 5;

fig. 7 is a sectional view of a vacuum bread maker according to another embodiment of the present invention;

FIG. 8 is an enlarged view of the structure circled at C in FIG. 7;

FIG. 9 is a schematic structural view of a vacuum bread maker according to another embodiment of the present invention, in a state in which an outer lid is opened;

FIG. 10 is an enlarged view of the structure circled at D in FIG. 9;

fig. 11 is a schematic view illustrating the cooperation between the inner container and the inner lid of the vacuum bread maker according to the embodiment of the present invention;

fig. 12 is a sectional view of a vacuum bread maker according to still another embodiment of the present invention;

FIG. 13 is an enlarged view of the structure circled at A in FIG. 12;

FIG. 14 is a schematic structural view of a vacuum bread maker according to an embodiment of the present invention, in a state where an outer lid is opened;

FIG. 15 is an enlarged view of the structure circled at B in FIG. 14;

fig. 16 is an enlarged view of the structure circled at C in fig. 12.

Fig. 17 is a sectional view of a vacuum bread maker according to still another embodiment of the present invention;

fig. 18 is a flowchart of a control method of a vacuum cooking apparatus according to an embodiment of the present invention;

fig. 19 is a flowchart of a control method of a vacuum cooking apparatus according to an embodiment of the present invention;

fig. 20 is a flowchart of a control method of a vacuum cooking apparatus according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A vacuum cooking apparatus according to an embodiment of the first aspect of the present invention is described below with reference to the accompanying drawings.

Fig. 1 is a block schematic diagram of a vacuum cooking apparatus according to an embodiment of the present invention. As shown in fig. 1, 3, 12 and 17, the vacuum cooking apparatus 100 includes an outer case 11, a lid body, an inner container 21, an inner lid 22, a vacuum device 3, a heating device 40, a vacuum degree detection device 20 and a control device 30.

Wherein the outer case 11 defines a cooking chamber 101 therein, the cooking chamber 101 having an opening, which may be provided at the top of the outer case 11. The inner container 21 is arranged in the cooking cavity 101, an accommodating cavity 102 with an open top is defined in the inner container 21 for accommodating food to be cooked, it should be noted that the vacuum cooking device 100 in the invention can be a vacuum electric cooker, a vacuum electric vacuum degree pot, a vacuum electric stewpan or a vacuum bread maker 100, and when the vacuum cooking device 100 is the vacuum electric cooker, the inner container 21 is used for accommodating rice, water and the like; when the vacuum cooking apparatus 100 is the vacuum bread maker 100, the inner container 21 is formed as a bread barrel 21, and the inner container 21 contains materials for making bread, such as water, flour, eggs, cheese, yeast, and the like. A heating device 40 such as a heating member 6 is provided in the cooking chamber 101 to heat the food in the inner container 21.

The cover is used to open or close the accommodating cavity 102. Specifically, a sealing ring is arranged between the cover body and the inner container. In one embodiment of the present invention, as shown in fig. 17, the cover includes a cover 12 disposed on the outer housing 11, the cover 12 is used to open or close the accommodating chamber 102, and when the cover 12 closes the accommodating chamber 102, the accommodating chamber 102 is in a sealed state. Specifically, a sealing ring 5 is arranged between the outer cover 12 and the inner container 21. In another embodiment of the present invention, as shown in fig. 3 and 12, the cover body includes an outer cover 12 disposed on the outer housing 11 and an inner cover 22 disposed in the cooking cavity, the inner cover 22 is used to open or close the receiving cavity 102, and when the inner cover 22 closes the receiving cavity 102, the receiving cavity 102 is in a sealed state. Specifically, the seal ring 5 is provided between the inner lid 22 and the inner container 21.

The vacuum device 3 is used for vacuumizing the accommodating cavity 102 when the accommodating cavity 102 is closed (i.e. when the accommodating cavity 102 is closed by the outer cover 12 or the inner cover 22) so as to form negative pressure in the accommodating cavity 102. The heating device 40 heats the accommodating chamber 102. When the vacuum cooking apparatus 100 is the vacuum bread maker 100, as shown in fig. 3, 12 and 17, the vacuum cooking apparatus 100 may further include a stirring device 60, and the stirring device 60 stirs the food material in the accommodating chamber 102.

The vacuum degree detection device 20 is used for detecting the vacuum degree in the accommodating cavity 102 in the cooking process, wherein the cooking process comprises a baking stage; the control device 30 is respectively connected with the heating device 40, the vacuum device 3 and the vacuum degree detection device 20, and the control device 30 is used for acquiring a preset vacuum degree range, controlling the vacuum device 3 to vacuumize before the vacuum cooking device 100 enters a baking stage, and controlling the heating device 40 to heat until the vacuum degree in the accommodating cavity 102 is within the preset vacuum degree range.

It can be understood that the vacuum degree range is preset for the vacuum degree of the vacuum pumping, the oxygen contents corresponding to different preset vacuum degree ranges are different, and the different oxygen contents correspond to different food tastes and colors.

Specifically, the vacuum level detection device 20 can detect the vacuum level in the containing cavity 102 in real time during the cooking process, for example, when the vacuum cooking device 100 makes bread, the cooking process includes at least a stirring stage, a fermentation stage and a baking stage, and for example, when the vacuum cooking device 100 makes nuts, the cooking process includes at least a baking stage. The cooking modes of the vacuum cooking apparatus 100 may include making bread and making nuts.

For bread making, the vacuum cooking device 100 enters a baking stage after the stirring stage and the fermentation stage, and the closed accommodating cavity 102 is vacuumized before the heating device 40 is controlled to perform heating operation. It has set for in advance to predetermine the vacuum degree scope, controlling means 30 detects the vacuum degree that holds in the chamber 102 through the vacuum degree detection device 20 that sets up on the lid, and compare the vacuum degree that holds in the chamber 102 that detects in real time with predetermineeing the vacuum degree scope, when the vacuum degree that holds in the chamber 102 that detects in real time belongs to predetermineeing the vacuum degree scope, control heating device 40 carries out heating work in order to toast the dough, thereby can effectively control the culinary art effect of culinary art intracavity, for example, the depth of control crust, satisfy many-sided demand of user, promote user's experience.

For example, after mixing with flavoring, the cap is closed, and the nut enters the baking stage, and the closed cavity 102 is evacuated before the heating device 40 is controlled to perform the heating operation. It has set for in advance to predetermine the vacuum degree scope, controlling means 30 detects the vacuum degree that holds in the chamber 102 through the vacuum degree detection device 20 that sets up on the lid, and compare the vacuum degree that holds in the chamber 102 that detects in real time with predetermineeing the vacuum degree scope, when the vacuum degree that holds in the chamber 102 that detects in real time belongs to when predetermineeing the vacuum degree scope, control heating device 40 carries out heating work and toasts in order to the dough, thereby can the interior culinary art effect of effective control culinary art intracavity, satisfy user's many-sided demand, promote user's experience, and, nut toasts in-process through reducing the oxygen content, can reduce the harmful substance that grease oxidation produced such as carcinogen, be of value to human health at a certain degree.

In some embodiments, the control device 30 may obtain an initial vacuum degree according to the vacuum degree detection signal output by the vacuum degree detection device 20, and then further compensate the initial vacuum degree to obtain a final vacuum degree of the accommodating chamber 102.

According to an embodiment of the present invention, the control panel has a plurality of cooking effects and/or a plurality of cooking modes, and the control device 30 receives the cooking effect and/or the cooking mode selected by the user through the control panel and determines the preset vacuum degree range according to the cooking effect and/or the cooking mode selected by the user.

It is understood that the preset vacuum degree range may be determined according to a user's selection. For example, a table may be established based on a corresponding relationship between the cooking effect and a preset vacuum range, and after the control device 30 receives the cooking effect selected by the user through the control panel, the table may be looked up to determine the preset vacuum range corresponding to the cooking effect. For another example, a table may be established based on the corresponding relationship between the cooking mode and the preset vacuum degree range, and after the control device 30 receives the cooking mode selected by the user through the control panel, the preset vacuum degree range corresponding to the cooking mode may be determined by looking up the table. For another example, a table may be established based on the corresponding relationship between the cooking effect and the cooking mode and the preset vacuum degree range, and after the control device 30 receives the cooking effect and the cooking mode selected by the user through the control panel, the table may be looked up to determine the preset vacuum degree range corresponding to the cooking effect and the cooking mode.

Further, the control device 30 prestores a plurality of oxygen content ranges, each corresponding to each cooking effect, or each corresponding to each cooking mode, or each corresponding to each combination of cooking effect and cooking mode. The control device 30 determines a corresponding oxygen content range according to the cooking effect and/or the cooking mode selected by the user, and determines a preset vacuum degree range according to the corresponding oxygen content range.

It is understood that in some embodiments, the range of the oxygen content can be determined according to the selection of the user, and then the preset vacuum range can be obtained according to the range of the oxygen content.

Specifically, as shown in fig. 3 to 11, the vacuum cooking apparatus 100 further includes an oxygen content measuring device 60 disposed on the lid, and the oxygen content measuring device 60 measures the oxygen content in the accommodating chamber. For example, when the accommodating chamber 102 is closed by the outer lid 12, the oxygen content measuring device 60 is disposed on the outer lid 12, and for example, when the accommodating chamber 102 is closed by the inner lid 22, the oxygen content measuring device 60 may be disposed on the inner lid 22, so that the oxygen content of the accommodating chamber 102 can be accurately known.

According to one embodiment of the invention, the cooking mode comprises bread making and nut making, wherein when the cooking mode is bread making and the cooking effect is thin-skin bread, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L; when the cooking mode is bread making and the cooking effect is thick-skin bread, the preset vacuum degree range is 50 Kpa-70 Kpa, and the oxygen content range is 155 mg/L-217 mg/L; when the cooking mode is to make nuts, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L.

According to an embodiment of the present invention, the vacuum cooking apparatus further comprises a stirring device, wherein when the cooking mode is bread making, the control device maintains the temperature in the accommodating chamber at the first baking temperature by controlling the heating device when the vacuum cooking apparatus is in the baking stage; when the cooking mode is nut making, the control device controls the heating device to maintain the temperature in the accommodating cavity at the first baking temperature when the vacuum cooking device is in the baking stage, and controls the stirring device to stir

The cooking process of the bread maker will be described in detail below, taking the case of making bread using a bread maker as an example. Wherein the cooking process for making the bread comprises a stirring stage, a fermentation stage and a baking stage.

In the stirring stage, flour, water and yeast powder are put into the containing cavity 102, and the cover body is closed to form a sealed containing cavity 102 between the cover body and the inner pot. And then starts the bread maker. The stirring device starts to stir the flour, the water and the yeast powder in the bread barrel, and the stirring time is set to be a preset stirring time, such as 40 min. And starting timing while stirring, and stopping the stirring device when the timing time reaches the preset stirring time, so that the stirring stage is finished. And, during the stirring process, the stirring device can be controlled to rotate at a first preset rotation speed, for example, 300 r/min.

In the fermentation stage, the temperature of the accommodating chamber 102 is controlled by the heating device so that the temperature in the accommodating chamber 102 is maintained at the preset fermentation temperature to ferment the dough. The fermentation phase is completed when the duration of the fermentation phase reaches a preset fermentation time, e.g. 40 min.

In the baking stage, the vacuum device 3 is controlled to vacuumize the closed accommodating cavity 102, and the vacuum degree in the accommodating cavity 102 is detected in real time. The preset vacuum degree range can be determined according to the selection of a user, for example, when the cooking effect is thin-skin bread, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L; when the cooking effect is thick-skin bread, the preset vacuum degree range is 50 Kpa-70 Kpa, and the oxygen content range is 155 mg/L-217 mg/L.

Namely, the vacuum degree ranges can be 10Kpa to 30Kpa and 50Kpa to 70Kpa, the vacuum treatment degrees in different ranges are different, the corresponding oxygen contents in the accommodating cavity 102 are different, the specific oxygen contents can be measured by an oxygen content measuring instrument, the specific corresponding oxygen contents range is 31mg/L to 93mg/L and 155mg/L to 217mg/L, the different oxygen contents correspond to different thicknesses of the surface oxidation layer of the bread, and the different thicknesses can correspond to different tastes and colors of food.

When a user needs thin-skin bread, the control device 30 may determine whether the vacuum degree detected in real time in the accommodating chamber 102 is within a preset vacuum degree range of 10Kpa to 30Kpa, that is, greater than or equal to 10Kpa and less than or equal to 30Kpa, and when the vacuum degree detected in real time in the accommodating chamber 102 is not within a range of 10Kpa to 30Kpa, control the vacuum device 3 to continue to vacuumize the closed accommodating chamber 102, and when the vacuum degree detected in real time in the accommodating chamber 102 is within a range of 10Kpa to 30Kpa, the oxygen content in the accommodating chamber 102 is within a range of 31mg/L to 93mg/L, the oxygen content is small, the thickness of the surface oxide layer of the bread is thin, and at this time, the heating device 40 is controlled to perform heating operation to bake the bread to obtain the thin-skin bread.

When a user needs a thick bread, the control device 30 may determine whether the vacuum degree detected in real time in the accommodating chamber 102 is within a preset vacuum degree range of 50Kpa to 70Kpa, that is, greater than or equal to 50Kpa and less than or equal to 70Kpa, and when the vacuum degree detected in real time in the accommodating chamber 102 is not within a range of 50Kpa to 70Kpa, control the vacuum device 3 to continue to vacuumize the closed accommodating chamber 102, and when the vacuum degree detected in real time in the accommodating chamber 102 is within a range of 50Kpa to 70Kpa, the oxygen content in the accommodating chamber 102 is within a range of 155mg/L to 217mg/L, the oxygen content is high, the thickness of the surface oxide layer of the bread is thick, and at this time, the heating device 40 is controlled to perform heating operation to bake the bread to obtain the thick bread.

Specifically, the control device 30 controls the heating device 40 to perform the heating operation so that the temperature inside the accommodating chamber 102 is maintained at the first baking temperature, for example, 180 ℃. And starting timing at the same time of heating, and stopping the heating device 40 when the timing time reaches the preset baking time, such as 40min, so that the cooking is finished.

Therefore, the cooking effect in the cooking cavity can be effectively controlled, for example, the depth of the bread crust is controlled, the various requirements of the user are met, and the experience of the user is improved.

The cooking process of the bread maker will be described in detail below, taking the use of a bread maker for making nuts as an example. Wherein the cooking process for making the nuts includes a roasting stage.

During the roasting stage, nuts and ingredients are placed into the holding cavity 102, and the cover is closed to form a sealed holding cavity 102 between the cover and the inner pot. And then starts the bread maker.

And controlling the vacuum device 3 to vacuumize the closed accommodating cavity 102, and detecting the vacuum degree in the accommodating cavity 102 in real time. The preset vacuum degree range may be determined according to a user's selection, for example, the preset vacuum degree range is 10Kpa to 30 Kpa. The vacuum treatment degrees in different ranges are different, the corresponding oxygen contents in the accommodating cavity 102 are different, the specific oxygen contents can be measured by an oxygen content measuring instrument, the specific corresponding oxygen contents range is 31 mg/L-93 mg/L, the oxygen contents are reduced by 70% -90% compared with the oxygen contents in normal air, the oxygen contents are reduced, harmful substances such as carcinogenic substances generated by oxidation of oil in the nut baking process are reduced, and the nut baking device is beneficial to human health.

The control device 30 can judge whether the vacuum degree detected in real time in the accommodating cavity 102 is within a preset vacuum degree range of 10Kpa to 30Kpa, namely, more than or equal to 10Kpa and less than or equal to 30Kpa, when the vacuum degree detected in real time in the accommodating cavity 102 is not within the range of 10Kpa to 30Kpa, the control vacuum device 3 continues to vacuumize the closed accommodating cavity 102, when the vacuum degree detected in real time in the accommodating cavity 102 is within the range of 10Kpa to 30Kpa, the oxygen content in the accommodating cavity 102 is within the range of 31mg/L to 93mg/L, the oxygen content is reduced, harmful substances such as carcinogenic substances are reduced, and at the moment, the heating device 40 is controlled to perform heating operation to bake the nuts, so that the nut baking device is beneficial to human health.

Specifically, the control device 30 controls the heating device 40 to perform the heating operation so as to maintain the temperature in the accommodating chamber 102 at a second baking temperature, for example, 150 ℃, and simultaneously controls the stirring device to rotate at a second preset rotation speed, for example, 12 r/min. And starting timing at the same time of heating, and stopping the heating device 40 when the timing time reaches the preset baking time, such as 40min, so that the cooking is finished.

Therefore, the cooking effect in the cooking cavity can be effectively controlled, for example, harmful substances are reduced, the requirements of users in various aspects are met, and the experience of the users is improved.

In summary, according to the vacuum cooking device in the embodiment of the present invention, the control device obtains the preset vacuum degree range, and controls the vacuum cooking device to vacuumize when the vacuum cooking device enters the baking stage, and controls the heating device to perform a heater until the vacuum degree in the accommodating chamber is within the preset vacuum degree range, so that the cooking effect in the cooking chamber can be effectively controlled, various requirements of a user are met, and the user experience is improved.

A vacuum cooking apparatus 100 according to a first embodiment of the present invention will be described with reference to fig. 2 to 11.

Referring to fig. 2 to 11, a vacuum cooking apparatus 100 according to an embodiment of the present invention includes: an outer shell 11, an outer cover 12, an inner container 21, an inner cover 22 and a vacuum device 3.

The cooking cavity 101 with an opening is defined in the outer shell 11, the opening can be arranged at the top of the outer shell 11, the outer cover 12 is arranged on the outer shell 11 to open or close the opening, the outer cover 12 can be rotatably connected to the outer shell 11 to open or close the opening by rotating the outer cover 12, the inner container 21 is arranged in the cooking cavity 101, and the accommodating cavity 102 with an open top is defined in the inner container 21 to be used for accommodating food to be cooked. A heating device 40 such as a heating member 6 is provided in the cooking chamber 101 to heat the food in the inner container 21.

The inner cover 22 is disposed in the cooking cavity 101 for opening or closing the accommodating cavity 102, when the inner cover 22 closes the accommodating cavity 102, the accommodating cavity 102 is in a sealed state, and the vacuum device 3 is used for vacuumizing the accommodating cavity 102 when the accommodating cavity 102 is sealed (i.e., when the inner cover 22 closes the accommodating cavity 102) so as to form negative pressure in the accommodating cavity 102.

According to the vacuum cooking apparatus 100 of the embodiment of the present invention, the inner lid 22 for covering the inner container 21 is separately provided, so that the outer lid 12 only covers the opening of the outer case 11, thereby greatly simplifying the structure of the outer lid 12.

In one embodiment of the present invention, a connection structure 4 is provided between the inner container 21 and the inner lid 22 to fix the inner lid 22 to the inner container 21 when the inner lid 22 is in a state of closing the accommodation chamber 102. It should be noted that the phrase "the inner lid 22 is fixed to the inner container 21" as used herein means that the inner lid 22 and the inner container 21 are relatively stationary. Through setting up connection structure 4 in order to fix inner cover 22 on inner bag 21 when inner cover 22 is in the state of closing and holding chamber 102, make inner cover 22 will hold stable closing cap in chamber 102 like this, when vacuum cooking device 100 takes place to remove or rock etc., inner cover 22 can not be by the landing on the inner bag 21, holds the sealed effectual of chamber 102.

In an alternative embodiment of the present invention, as shown in fig. 3 to 11, the attachment structure 4 includes a locking member 41, the locking member 41 is rotatably attached to the inner container 21, the locking member 41 has a locking portion 411, and the locking portion 411 can abut against or be separated from the upper surface of the inner lid 22 when the locking member 41 is rotated. The inner lid 22 is fitted on the liner 21 to close the top opening of the accommodation chamber 102, and when the locking portion 411 abuts against the upper surface of the inner lid 22, the inner lid 22 cannot move upward, and the lower surface of the inner lid 22 abuts against the liner 21, and the inner lid 22 cannot move downward, so that the inner lid 22 is fixed on the liner 21, and the accommodation chamber 102 is stably closed by the inner lid 22. When the locking portion 411 is separated from the upper surface of the inner lid 22, the inner lid 22 may be moved to open the receiving cavity 102. The abutment or separation of the locking portion 411 with or from the upper surface of the inner lid 22 is achieved by the rotation of the locking piece 41, specifically, referring to fig. 3 to 11, the locking piece 41 is rotated upward, and the locking portion 411 can abut onto the upper surface of the inner lid 22; the locking piece 41 is rotated downward and the locking portion 411 is separated from the upper surface of the inner cover 22.

Preferably, the locking part 41 includes a plurality of locking parts 41, and the plurality of locking parts 41 are distributed at intervals along the circumference of the inner container 21, thereby making the inner lid 22 more stably fixed on the inner container 21. It is to be noted that, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Alternatively, the locking portion 411 is formed as a roller rotatably connected to the locking member 41, thereby making the locking portion 411 have rolling friction with the upper surface of the inner cover 22 when the locking member 41 is rotated to be engaged with the inner cover 22, so that friction between the locking portion 411 and the upper surface of the inner cover 22 can be reduced, not only feeling of engagement is good, but also abrasion of the locking portion 411 and the inner cover 22 can be reduced.

As shown in fig. 4 and 6, the locking element 41 is provided with a toggle part 412, when the locking part 411 abuts against the upper surface of the inner lid 22, the toggle part 412 extends obliquely upward from the upper surface of the inner lid 22, and the toggle part 412 can be arranged to conveniently drive the locking element 41 to rotate so as to unlock the inner lid 22. Specifically, when the inner lid 22 needs to be unlocked (i.e., when the locking portion 411 needs to be separated from the upper surface of the inner lid 22), the hand-held toggle portion 412 is pulled outward to drive the latch 41 to rotate downward to be separated from the upper surface of the inner lid 22, so as to unlock the inner lid 22.

In an alternative embodiment of the present invention, as shown in fig. 7-11, the connecting structure 4 includes a hinge 42, the inner container 21 and the inner lid 22 are rotatably connected by the hinge 42, so that the inner lid 22 can be rotated relative to the inner container 21 to open or close the accommodating cavity 102, which is convenient for operation. And no matter the inner cover 22 is in the state of opening the containing cavity 102 or in the state of closing the containing cavity 102, the inner cover 22 is connected to the inner container 21, and the inner cover 22 and the inner container 21 are formed into a whole, so that the use is convenient.

The connecting structure 4 may comprise only the above-mentioned catch member 41 or may comprise both the above-mentioned catch member 41 and the hinge 42, two specific examples according to the invention being described below with reference to fig. 3-11.

Example one: as shown in fig. 3 to 6, the connecting structure 4 includes two latching members 41, the two latching members 41 are arranged at intervals along the circumference of the inner container 21, preferably, the two latching members 41 are arranged oppositely with respect to the axis of the inner container 21, and the inner container 22 is fixed to the inner container 21 when the locking portions 411 of the two latching members 41 are abutted on the upper surface of the inner container 22.

Example two: as shown in fig. 7-11, the connecting structure 4 includes a hinge 42 and a latch 41, the hinge 42 and the latch 41 are spaced apart along the circumference of the liner 21, and preferably, the hinge 42 and the latch 41 are disposed opposite to each other about the axis of the liner 21. The connecting structure 4 is simple, the inner cover 22 and the inner container 21 are connected into a whole through the hinge 42, and the opening and closing operation of the inner cover 22 is convenient.

Of course, the connecting structure 4 of the present invention is not limited to include the locking member 41 and the hinge 42, and the connecting structure 4 may also include a snap, a hook, a latch, etc.

In an embodiment of the present invention, as shown in fig. 4 and 8, a sealing ring 5 is disposed between the inner lid 22 and the inner container 21, for example, the sealing ring 5 may be a rubber ring or a silicone ring, and by disposing the sealing ring 5, the inner lid 22 and the inner container 21 are fitted more tightly, and the sealing effect of the accommodating cavity 102 is better.

In one embodiment of the present invention, as shown in fig. 3 to 7, the inner lid 22 is provided with an air suction port 103 communicating with the accommodating chamber 102, the outer lid 12 is provided with an air discharge port communicating with the external environment, the vacuum apparatus 3 includes a vacuum pump 31, an air inlet of the vacuum pump 31 communicates with the air suction port 103, an air outlet of the vacuum pump 31 communicates with the air discharge port, and the vacuum pump 31 operates to suck air in the accommodating chamber 102 out of the air suction port 103 and then discharge the air into the external environment through the air discharge port.

The installation position of the vacuum pump 31 can be arbitrarily selected as required, and preferably, as shown in fig. 3 to 7, the vacuum pump 31 is fixed in the outer lid 12. Thereby facilitating the connection between the vacuum pump 31 and the exhaust port. Further, the air outlet of the vacuum pump 31 can be connected to the air outlet of the outer cover 12 in a pluggable manner, and the connecting structure 4 is simple and convenient to disassemble and assemble.

As shown in fig. 3 to 7, the vacuum apparatus 3 further includes a connection pipe 33, one end of the connection pipe 33 is communicated with the air inlet of the vacuum pump 31, and the other end of the connection pipe 33 is communicated with the suction port 103, i.e., the suction port 103 and the air inlet are connected through the connection pipe 33, thereby making the connection between the suction port 103 and the air inlet more convenient. Preferably, the connection pipe 33 is an elastic pipe with a length that can be expanded and contracted, when the outer cover 12 is in a closed state, the connection pipe 33 is in a contracted state, and when the outer cover 12 is in an open state, the connection pipe 33 is in an expanded state, so that it is possible to prevent the connection pipe 33 from being excessively long to interfere with the structures of the inner container 21, the heating member 6, and the like when the outer cover 12 is closed, and simultaneously, when the outer cover 12 is open, the connection pipe 33 automatically expands to prevent the connection pipe 33 from being disengaged from the suction opening 103 and/or the air inlet. Optionally, the connection pipe 33 is connected to the air suction opening 103 in a pluggable manner, and the connection structure 4 between the connection pipe 33 and the air suction opening 103 is simple and convenient to assemble and disassemble. Optionally, the connecting pipe 33 is connected with the air inlet in a pluggable manner, and the connecting structure 4 between the connecting pipe 33 and the air inlet is simple and convenient to disassemble and assemble.

As shown in fig. 3-7, the vacuum apparatus 3 further includes a control valve 32, and the control valve 32 is connected between the pumping port 103 and the vacuum pump 31 to control the on/off of the pumping port 103 and the vacuum pump 31, thereby controlling the operation of the vacuum apparatus 3. For example, in the example shown in fig. 2 to 11, the vacuum apparatus 3 includes a vacuum pump 31, a control valve 32, and a connection pipe 33, one end of the connection pipe 33 is connected to the suction port 103, and the other end of the connection pipe 33 is connected to the air inlet of the vacuum pump 31 through the control valve 32, and preferably, the connection pipe 33 is connected to the suction port 103 in a pluggable manner, and the control valve 32 is connected to the connection pipe 33 in a pluggable manner, and the control valve 32 is connected to the air inlet in a pluggable manner.

Preferably, as shown in fig. 3-11, the control valve 32 is an electric control, for example, the control valve 32 is an electromagnetic valve, the vacuum device 3 further includes a vacuum degree detection device 20, for example, a vacuum sensor 34, for detecting the vacuum degree in the accommodating chamber 102, and the on/off of the control valve 32 is controlled by the vacuum degree in the accommodating chamber 102 detected by the vacuum sensor 34. Specifically, the vacuum sensor 34 and the control valve 32 are both electrically connected to the control device 30 of the vacuum cooking device 100, such as the control circuit board 106, the vacuum sensor 34 feeds back the detected vacuum degree in the accommodating cavity 102 to the control circuit board 106, the control circuit board 106 compares the vacuum degree detected by the vacuum sensor 34 with a target vacuum degree, when the detected vacuum degree reaches the target vacuum degree, it indicates that the vacuum degree in the accommodating cavity 102 meets the actual requirement, at this time, the control circuit board 106 closes the control valve 32, and the vacuum device 3 stops working. Thereby making the control of the control valve 32 more automated.

The installation position of the vacuum sensor 34 may be arbitrarily selected according to actual needs, and preferably, as shown in fig. 3 to 10, the vacuum sensor 34 is installed on the inner lid 22 with at least a portion of the vacuum sensor 34 extending into the receiving chamber 102 to detect the degree of vacuum in the receiving chamber 102. Alternatively, the vacuum sensor 34 may be removably mounted to the inner lid 22, which is simple in mounting structure and easy to assemble and disassemble.

In some embodiments, the vacuum cooking apparatus 100 further comprises an oxygen content measuring device 80, such as an oxygen content measuring instrument, for detecting the amount of oxygen contained in the containing cavity 102. Specifically, the installation position of the oxygen content measuring instrument may be arbitrarily selected according to actual needs, and preferably, as shown in fig. 3 to 11, the oxygen content measuring instrument is installed on the inner lid 22, and at least a portion of the oxygen content measuring instrument extends into the accommodating chamber 102 to detect the oxygen content in the accommodating chamber 102. Optionally, the oxygen content measuring instrument is removably mounted on the inner lid 22, and the mounting structure is simple and the assembly and disassembly are convenient.

As shown in fig. 3 to 11, the inner lid 22 is provided with a handle 221 to facilitate opening and closing of the inner lid 22.

A vacuum bread maker 100 according to an embodiment of the present invention will be described with reference to fig. 2 to 11.

Referring to fig. 2 to 11, the vacuum bread maker 100 includes an outer case 11, an outer cover 12, an inner container 21, an inner cover 22, a heating member 6, a vacuum apparatus 3, a stirring rod 7, a transmission shaft 8, and a driver 9.

A cooking cavity 101 having an opening is defined in the outer casing 11, the cooking cavity 101 is formed as an oven cavity 101, the opening can be provided at the top of the outer casing 11, an outer cover 12 is provided on the outer casing 11 to open or close the opening, an inner container 21 is provided in the cooking cavity 101, an accommodating cavity 102 having an open top is defined in the inner container 21 for accommodating food to be cooked, and an inner cover 22 is provided on the inner container 21 to open or close the accommodating cavity 102. The inner container 21 is formed as a bread barrel 21, the inner cover 22 is formed as a barrel cover 22 of the bread barrel 21, the bread barrel 21 is a container for making bread, and the bread stirring, fermenting and baking are all performed in the bread barrel 21, i.e. the bread barrel 21 is a container for stirring bread and a mold for baking bread.

The heating element 6 is arranged in the cooking cavity 101, the heating element 6 can be arranged around the bread barrel 21, the heating element 6 performs heating work in the fermentation and baking processes of bread making, and the temperature and time for heating the heating element 6 need to meet the requirements of fermentation and baking of bread in the bread barrel 21. Alternatively, as shown in fig. 2 and 6, the heating element 6 is an annular heating pipe 6, and the heating pipe 6 is arranged around the bread barrel 21, so that the heating effect is good. The vacuum device 3 is used for vacuumizing the accommodating cavity 102 when the accommodating cavity 102 is sealed so as to form negative pressure in the accommodating cavity 102. The vacuum apparatus 3 can be controlled as desired at which stage (for example, kneading dough, fermenting, baking, or the like) in the cooking process, the time for evacuating the housing chamber 102, and the degree of evacuation of the housing chamber 102. Different vacuum treatment degrees can correspond to different food tastes and colors, and the vacuum treatment can reduce harmful substances generated in the food baking process.

The stirring rod 7 is arranged in the inner container 21, one end of the transmission shaft 8 extends into the inner container 21 to be connected with the stirring rod 7, the other end of the transmission shaft 8 extends out of the inner container 21, the driver 9 is arranged in the outer shell 11 and is positioned outside the inner container 21, and the driver 9 is connected with the other end of the transmission shaft 8 to drive the stirring rod 7 to rotate. The stirring rod 7 is used for stirring the dough into gluten according to a stirring procedure to prepare the dough meeting the bread making requirement.

According to the vacuum bread maker 100 of the embodiment of the present invention, the inner lid 22 for covering the inner container 21 is separately provided, so that the outer lid 12 only covers the opening of the outer shell 11, thereby greatly simplifying the structure of the outer lid 12.

In one embodiment of the present invention, as shown in fig. 2 and 6, the stirring rod 7 is installed at the center of the bottom of the bread barrel 21, the upper end of the driving shaft 8 is extended into the bread barrel 21 to be connected to the stirring rod 7, and the lower end of the driving shaft 8 is extended out of the bread barrel 21. The driver 9 is a motor 9, the motor 9 and the lower end of the transmission shaft 8 are transmitted through a belt transmission system, the belt transmission system comprises a driving wheel 104, a driven wheel 105 and a conveyor belt, the driving wheel 104 is arranged on a motor shaft of the motor 9, the driven wheel 105 is connected with the transmission shaft 8, and the conveyor belt is respectively matched with the driving wheel 104 and the driven wheel 105. The vacuum bread maker 100 may further include a temperature sensor for detecting a temperature of the oven cavity 101, the temperature sensor being electrically connected to the heating member 6 to control an operation of the heating member 6 according to the temperature of the oven cavity 101, so as to ensure that a heating value of the heating member 6 meets a temperature requirement.

A connecting structure 4 is provided between the inner container 21 and the inner lid 22 to fix the inner lid 22 to the inner container 21 when the inner lid 22 is in a state of closing the accommodating chamber 102. It should be noted that the phrase "the inner lid 22 is fixed to the inner container 21" as used herein means that the inner lid 22 and the inner container 21 are relatively stationary. Through setting up connection structure 4 in order to fix inner cover 22 on inner bag 21 when inner cover 22 is in the state of closing and holding chamber 102, make inner cover 22 will hold stable closing cap in chamber 102 like this, when vacuum cooking device 100 takes place to remove or rock etc., inner cover 22 can not be by the landing on the inner bag 21, holds the sealed effectual of chamber 102.

Referring to fig. 3 to 11, the attaching structure 4 includes a locking piece 41, the locking piece 41 is rotatably attached to the inner container 21, the locking piece 41 has a locking portion 411, and the locking portion 411 can abut against or be separated from the upper surface of the inner lid 22 when the locking piece 41 is rotated. The inner lid 22 is fitted on the liner 21 to close the top opening of the accommodation chamber 102, and when the locking portion 411 abuts against the upper surface of the inner lid 22, the inner lid 22 cannot move upward, and the lower surface of the inner lid 22 abuts against the liner 21, and the inner lid 22 cannot move downward, so that the inner lid 22 is fixed on the liner 21, and the accommodation chamber 102 is stably closed by the inner lid 22. When the locking portion 411 is separated from the upper surface of the inner lid 22, the inner lid 22 may be moved to open the receiving cavity 102. The abutment or separation of the locking portion 411 with or from the upper surface of the inner lid 22 is achieved by the rotation of the locking piece 41, specifically, referring to fig. 2 to 10, the locking piece 41 is rotated upward, and the locking portion 411 can abut onto the upper surface of the inner lid 22; the locking piece 41 is rotated downward and the locking portion 411 is separated from the upper surface of the inner cover 22.

Preferably, the locking part 41 includes a plurality of locking parts 41, and the plurality of locking parts 41 are distributed at intervals along the circumference of the inner container 21, thereby making the inner lid 22 more stably fixed on the inner container 21. It is to be noted that, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Alternatively, the locking portion 411 is formed as a roller rotatably connected to the locking member 41, thereby making the locking portion 411 have rolling friction with the upper surface of the inner cover 22 when the locking member 41 is rotated to be engaged with the inner cover 22, so that friction between the locking portion 411 and the upper surface of the inner cover 22 can be reduced, not only feeling of engagement is good, but also abrasion of the locking portion 411 and the inner cover 22 can be reduced.

As shown in fig. 4 and 6, the locking element 41 is provided with a toggle part 412, when the locking part 411 abuts against the upper surface of the inner lid 22, the toggle part 412 extends obliquely upward from the upper surface of the inner lid 22, and the toggle part 412 can be arranged to conveniently drive the locking element 41 to rotate so as to unlock the inner lid 22. Specifically, when the inner lid 22 needs to be unlocked (i.e., when the locking portion 411 needs to be separated from the upper surface of the inner lid 22), the hand-held toggle portion 412 is pulled outward to drive the latch 41 to rotate downward to be separated from the upper surface of the inner lid 22, so as to unlock the inner lid 22.

As shown in fig. 7-11, the connecting structure 4 includes a hinge 42, the inner container 21 and the inner lid 22 are rotatably connected by the hinge 42, so that the accommodating cavity 102 can be opened or closed by rotating the inner lid 22 relative to the inner container 21, and the operation is convenient. And no matter the inner cover 22 is in the state of opening the containing cavity 102 or in the state of closing the containing cavity 102, the inner cover 22 is connected to the inner container 21, and the inner cover 22 and the inner container 21 are formed into a whole, so that the use is convenient.

The connecting structure 4 may comprise only the above-mentioned catch member 41 or may comprise both the above-mentioned catch member 41 and the hinge 42, two specific examples according to the invention being described below with reference to fig. 2-10.

Example one: as shown in fig. 3 to 6, the connecting structure 4 includes two latching members 41, the two latching members 41 are arranged at intervals along the circumference of the inner container 21, preferably, the two latching members 41 are arranged oppositely with respect to the axis of the inner container 21, and the inner container 22 is fixed to the inner container 21 when the locking portions 411 of the two latching members 41 are abutted on the upper surface of the inner container 22.

Example two: as shown in fig. 7-11, the connecting structure 4 includes a hinge 42 and a latch 41, the hinge 42 and the latch 41 are spaced apart along the circumference of the liner 21, and preferably, the hinge 42 and the latch 41 are disposed opposite to each other about the axis of the liner 21. The connecting structure 4 is simple, the inner cover 22 and the inner container 21 are connected into a whole through the hinge 42, and the opening and closing operation of the inner cover 22 is convenient.

Of course, the connecting structure 4 of the present invention is not limited to include the locking member 41 and the hinge 42, and the connecting structure 4 may also include a snap, a hook, a latch, etc.

As shown in fig. 4 and 8, a sealing ring 5 is arranged between the inner cover 22 and the inner container 21, for example, the sealing ring 5 may be a rubber ring or a silicone ring, and by arranging the sealing ring 5, the inner cover 22 and the inner container 21 are more tightly matched, and the sealing effect of the accommodating cavity 102 is better.

As shown in fig. 3 and 7, the inner lid 22 is provided with an air suction port 103 communicating with the accommodating chamber 102, the outer lid 12 is provided with an air discharge port communicating with the external environment, the vacuum apparatus 3 includes a vacuum pump 31, an air inlet of the vacuum pump 31 communicates with the air suction port 103, an air outlet of the vacuum pump 31 communicates with the air discharge port, and the vacuum pump 31 operates to discharge the air in the accommodating chamber 102 from the air suction port 103 to the external environment through the air discharge port.

The installation position of the vacuum pump 31 can be arbitrarily selected as required, and preferably, as shown in fig. 3 and 7, the vacuum pump 31 is fixed in the outer lid 12. Thereby facilitating the connection between the vacuum pump 31 and the exhaust port. Further, the air outlet of the vacuum pump 31 can be connected to the air outlet of the outer cover 12 in a pluggable manner, and the connecting structure 4 is simple and convenient to disassemble and assemble.

As shown in fig. 3 and 7, the vacuum apparatus 3 further includes a connection pipe 33, one end of the connection pipe 33 is communicated with the air inlet of the vacuum pump 31, and the other end of the connection pipe 33 is communicated with the suction port 103, i.e., the suction port 103 and the air inlet are connected through the connection pipe 33, thereby making the connection between the suction port 103 and the air inlet more convenient. Preferably, the connection pipe 33 is an elastic pipe with a length that can be expanded and contracted, when the outer cover 12 is in a closed state, the connection pipe 33 is in a contracted state, and when the outer cover 12 is in an open state, the connection pipe 33 is in an expanded state, so that it is possible to prevent the connection pipe 33 from being excessively long to interfere with the structures of the inner container 21, the heating member 6, and the like when the outer cover 12 is closed, and simultaneously, when the outer cover 12 is open, the connection pipe 33 automatically expands to prevent the connection pipe 33 from being disengaged from the suction opening 103 and/or the air inlet. Optionally, the connection pipe 33 is connected to the air suction opening 103 in a pluggable manner, and the connection structure 4 between the connection pipe 33 and the air suction opening 103 is simple and convenient to assemble and disassemble. Optionally, the connecting pipe 33 is connected with the air inlet in a pluggable manner, and the connecting structure 4 between the connecting pipe 33 and the air inlet is simple and convenient to disassemble and assemble.

As shown in fig. 3 and 7, the vacuum apparatus 3 further includes a control valve 32, and the control valve 32 is connected between the suction port 103 and the vacuum pump 31 to control on/off between the suction port 103 and the vacuum pump 31, thereby controlling the operation of the vacuum apparatus 3. For example, in the example shown in fig. 1 to 10, the vacuum apparatus 3 includes a vacuum pump 31, a control valve 32, and a connection pipe 33, one end of the connection pipe 33 is connected to the suction port 103, and the other end of the connection pipe 33 is connected to the air inlet of the vacuum pump 31 through the control valve 32, and preferably, the connection pipe 33 is connected to the suction port 103 in a pluggable manner, and the control valve 32 is connected to the connection pipe 33 in a pluggable manner, and the control valve 32 is connected to the air inlet in a pluggable manner.

Preferably, as shown in fig. 3-11, the control valve 32 is an electric control, for example, the control valve 32 is an electromagnetic valve, the vacuum cooking device 100 further includes a vacuum sensor 34 for detecting the vacuum degree in the accommodating chamber 102, the vacuum sensor 34 is electrically connected to the control valve 32, and the on/off of the control valve 32 is controlled by the vacuum degree in the accommodating chamber 102 detected by the vacuum sensor 34. Specifically, the vacuum sensor 34 and the control valve 32 are both electrically connected to the control circuit board 106 of the vacuum cooking device 100, the vacuum sensor 34 feeds back the detected vacuum degree in the accommodating cavity 102 to the control circuit board 106, the control circuit board 106 compares the vacuum degree detected by the vacuum sensor 34 with a target vacuum degree, when the detected vacuum degree reaches the target vacuum degree, it is indicated that the vacuum degree in the accommodating cavity 102 meets the actual requirement, at this time, the control circuit board 106 closes the control valve 32, and the vacuum cooking device 3 stops working. Thereby making the control of the control valve 32 more automated.

The installation position of the vacuum sensor 34 may be arbitrarily selected according to actual needs, and preferably, as shown in fig. 3 to 11, the vacuum sensor 34 is installed on the inner lid 22, and at least a portion of the vacuum sensor 34 extends into the receiving chamber 102 to detect the degree of vacuum in the receiving chamber 102. Alternatively, the vacuum sensor 34 may be removably mounted to the inner lid 22, which is simple in mounting structure and easy to assemble and disassemble.

In some embodiments, the vacuum cooking apparatus 100 further comprises an oxygen content measuring device 80, such as an oxygen content measuring instrument, for detecting the amount of oxygen contained in the containing cavity 102. Specifically, the installation position of the oxygen content measuring instrument may be arbitrarily selected according to actual needs, and preferably, as shown in fig. 3 to 11, the oxygen content measuring instrument is installed on the inner lid 22, and at least a portion of the oxygen content measuring instrument extends into the accommodating chamber 102 to detect the oxygen content in the accommodating chamber 102. Optionally, the oxygen content measuring instrument is removably mounted on the inner lid 22, and the mounting structure is simple and the assembly and disassembly are convenient.

A vacuum cooking apparatus 100 according to a second embodiment of the present invention will be described with reference to fig. 12 to 16.

The structure of the vacuum cooking apparatus 100 of this embodiment is different from the embodiment of fig. 2 to 11 in that the inner lid 22 is connected in a different manner, and other structures are substantially the same and will not be described in detail here.

Referring to fig. 12 to 16, the inner lid 22 is movably coupled to the inner sidewall of the cooking chamber 101 to open or close the receiving chamber 102, and the receiving chamber 102 is opened or closed by moving the inner lid 22 relative to the inner sidewall of the cooking chamber 101, which is convenient to operate and novel in coupling manner of the inner lid 22. The connection position of the inner lid 22 to the inner sidewall of the cooking chamber 101 may be arbitrarily selected, for example, in the specific example shown in fig. 12 to 15, the cooking chamber 101 has a substantially rectangular parallelepiped structure, the top of the cooking chamber 101 is open, the inner sidewall of the cooking chamber 101 includes front and rear sidewalls opposite in the front-rear direction and left and right sidewalls opposite in the left-right direction, and the inner lid 22 may be connected to any one of the front, rear, left, and right sidewalls of the cooking chamber 101.

According to the vacuum cooking apparatus 100 of the embodiment of the invention, the inner cover 22 for covering the inner container 21 is separately provided, so that the outer cover 12 only covers the opening of the outer shell 11, thereby greatly simplifying the structure of the outer cover 12. In addition, the inner lid 22 is novel in connection manner, and is convenient in opening and closing operations.

In one embodiment of the invention, as shown in fig. 12 to 15, the inner lid 22 is rotatably coupled to the inner sidewall of the cooking chamber 101 by the hinge 10, the inner lid 22 is opened and closed to the receiving chamber 102 by rotating with respect to the inner sidewall of the cooking chamber 101, the operation is convenient, and the coupling structure between the inner lid 22 and the inner sidewall of the cooking chamber 101 is simple.

Of course, the invention is not limited thereto, for example, in some examples, the inner lid 22 is provided on the inner sidewall of the cooking cavity 101 in a push-and-pull manner, when the accommodating cavity 102 needs to be closed, the inner lid 22 can be closed by drawing out the inner lid 22 from the inner sidewall of the cooking cavity 101, and when the accommodating cavity 102 needs to be opened, the inner lid 22 can be pushed into the inner sidewall of the cooking cavity 101. The connection is novel and easy to operate by pushing and pulling the inner lid 22 to open and close the accommodation chamber 102.

In one embodiment of the invention, a connecting structure 4 is provided between the inner container 21 and the inner lid 22 to fix the inner lid 22 to the inner container 21 when the inner lid 22 is in a state of closing the accommodating chamber 102. It should be noted that the phrase "the inner lid 22 is fixed to the inner container 21" as used herein means that the inner lid 22 and the inner container 21 are relatively stationary. Through setting up connection structure 4 in order to fix inner cover 22 on inner bag 21 when inner cover 22 is in the state of closing and holding chamber 102, make inner cover 22 will hold stable closing cap in chamber 102 like this, when vacuum cooking device 100 takes place to remove or rock etc., inner cover 22 can not be by the landing on the inner bag 21, holds the sealed effectual of chamber 102.

In an alternative embodiment of the present invention, as shown in fig. 12 to 16, the attachment structure 4 includes a locking member 41, the locking member 41 is rotatably attached to the inner container 21, the locking member 41 has a locking portion 411, and the locking portion 411 can abut against or be separated from the upper surface of the inner lid 22 when the locking member 41 is rotated. The inner lid 22 is fitted on the liner 21 to close the top opening of the accommodation chamber 102, and when the locking portion 411 abuts against the upper surface of the inner lid 22, the inner lid 22 cannot move upward, and the lower surface of the inner lid 22 abuts against the liner 21, and the inner lid 22 cannot move downward, so that the inner lid 22 is fixed on the liner 21, and the accommodation chamber 102 is stably closed by the inner lid 22. When the locking portion 411 is separated from the upper surface of the inner lid 22, the inner lid 22 may be moved to open the receiving cavity 102. The abutment or separation of the locking portion 411 with or from the upper surface of the inner lid 22 is achieved by the rotation of the locking piece 41, specifically, referring to fig. 4 and 6, the locking piece 41 is rotated upward, and the locking portion 411 can abut onto the upper surface of the inner lid 22; the locking piece 41 is rotated downward and the locking portion 411 is separated from the upper surface of the inner cover 22.

In one embodiment of the invention, as shown in fig. 12-15, the connecting structure 4 includes a latch 41, the latch 41 and the hinge 10 are symmetrically arranged about the axis of the inner container 21, and the inner lid 22 can be more stably fixed on the inner container 21.

Alternatively, the locking portion 411 is formed as a roller rotatably connected to the locking member 41, thereby making the locking portion 411 have rolling friction with the upper surface of the inner cover 22 when the locking member 41 is rotated to be engaged with the inner cover 22, so that friction between the locking portion 411 and the upper surface of the inner cover 22 can be reduced, not only feeling of engagement is good, but also abrasion of the locking portion 411 and the inner cover 22 can be reduced.

As shown in fig. 14 and 16, the locking member 41 is provided with a toggle part 412, when the locking part 411 abuts against the upper surface of the inner lid 22, the toggle part 412 extends obliquely upward from the upper surface of the inner lid 22, and the toggle part 412 can be arranged to facilitate driving the locking member 41 to rotate to unlock the inner lid 22. Specifically, when the inner lid 22 needs to be unlocked (i.e., when the locking portion 411 needs to be separated from the upper surface of the inner lid 22), the hand-held toggle portion 412 is pulled outward to drive the latch 41 to rotate downward to be separated from the upper surface of the inner lid 22, so as to unlock the inner lid 22.

Preferably, the locking part 41 includes a plurality of locking parts 41, and the plurality of locking parts 41 are distributed at intervals along the circumference of the inner container 21, thereby making the inner lid 22 more stably fixed on the inner container 21. It is noted that, in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

Of course, the inventive connecting structure 4 is not limited to include the locking member 41, and the connecting structure 4 may also include a snap, a hook, a latch, etc.

A vacuum cooking apparatus 100 according to a third embodiment of the present invention is described below with reference to fig. 17.

As shown in fig. 17, the vacuum cooking apparatus 100 according to the embodiment of the present invention includes an outer case 11, an inner container 21, an outer cover 12, and a vacuum unit 3.

A cooking chamber 101 is provided in the outer case 11. The inner container 21 is detachably arranged in the cooking cavity 101, and the inner container 21 is internally provided with a containing cavity 102. The outer lid 12 is provided on the outer case 11 to open or close the accommodation chamber 102. The vacuum device 3 is provided on the outer housing 11 or the outer lid 12 and communicates with the accommodation chamber 102 and the atmosphere, respectively.

In one embodiment of the present invention, as shown in fig. 17, the cover 12 is provided with an air pumping port 103 communicating with the accommodating chamber 102, and the cover 12 is provided with an air exhaust port communicating with the external environment. The vacuum device 3 includes a vacuum pump 31, an air inlet of the vacuum pump 31 is communicated with the air suction port 103, an air outlet of the vacuum pump 31 is communicated with the air exhaust port, and the vacuum pump 31 operates to exhaust the air in the accommodating chamber 102 from the air suction port 103 and then to the external environment through the air exhaust port. That is, the lower surface of the outer lid 12 is provided with an air suction port 103 communicating the housing chamber 102 and the vacuum pump 31, and the upper surface of the outer lid 12 is provided with an exhaust port communicating the vacuum pump 31 and the atmosphere.

The installation position of the vacuum pump 31 can be arbitrarily selected as required, and preferably, as shown in fig. 17, the vacuum pump 31 is fixed in the outer cover 12. Thereby facilitating the connection between the vacuum pump 31 and the exhaust port. Further, the air outlet of the vacuum pump 31 can be connected to the air outlet of the outer cover 12 in a pluggable manner, and the connecting structure 4 is simple and convenient to disassemble and assemble.

As shown in fig. 17, the vacuum apparatus 3 further includes a connection pipe 33, one end of the connection pipe 33 is communicated with the air inlet of the vacuum pump 31, and the other end of the connection pipe 33 is communicated with the air suction opening 103, i.e., the air suction opening 103 is connected with the air inlet through the connection pipe 33, thereby facilitating the connection between the air suction opening 103 and the air inlet.

The vacuum device 3 further comprises a control valve 32, the control valve 32 is connected to the connection pipe 33, that is, the control valve 32 is connected between the pumping port 103 and the vacuum pump 31 to control the on/off of the pumping port 103 and the vacuum pump 31, and preferably, the control valve 32 is an electric control, for example, the control valve 32 is an electromagnetic valve. Specifically, the vacuum pump 31 and the control valve 32 are electrically connected to the control device 30, such as the control circuit board 106, and the control circuit board 106 controls the control valve 32 and the vacuum pump 31 to be closed after the vacuum pump 31 is operated for a predetermined time or the vacuum degree in the accommodating chamber 102 reaches a set vacuum degree. Therefore, the control valve 32 can be closed after the vacuum pump 31 pumps out the air in the accommodating cavity 102, so that the accommodating cavity 102 is sealed, the negative pressure state can be kept in the accommodating cavity 102, the vacuum pump 31 does not need to operate for a long time, and more energy is saved.

In one embodiment of the invention, the vacuum device 3 further comprises a vacuum degree detection device 20, such as a vacuum sensor 34, for detecting the vacuum degree in the accommodating cavity 102, and the on-off of the control valve 32 is controlled by the vacuum degree in the accommodating cavity 102 detected by the vacuum sensor 34. Specifically, the vacuum sensor 34 and the control valve 32 are both electrically connected to the control device 30 of the vacuum cooking device 100, such as the control circuit board 106, the vacuum sensor 34 feeds back the detected vacuum degree in the accommodating cavity 102 to the control circuit board 106, the control circuit board 106 compares the vacuum degree detected by the vacuum sensor 34 with a target vacuum degree, when the detected vacuum degree reaches the target vacuum degree, it indicates that the vacuum degree in the accommodating cavity 102 meets the actual requirement, at this time, the control circuit board 106 closes the control valve 32, and the vacuum device 3 stops working. Thereby making the control of the control valve 32 more automated.

The installation position of the vacuum sensor 34 can be arbitrarily selected according to actual needs, and preferably, as shown in fig. 17, the vacuum sensor 34 is installed on the outer lid 12, and at least a portion of the vacuum sensor 34 extends into the receiving chamber 102 to detect the degree of vacuum in the receiving chamber 102.

In some embodiments, the vacuum cooking apparatus 100 further comprises an oxygen content measuring device 80, such as an oxygen content measuring instrument, for detecting the amount of oxygen contained in the containing cavity 102. Specifically, the installation position of the oxygen content measuring instrument may be arbitrarily selected according to actual needs, and preferably, as shown in fig. 3 to 11, the oxygen content measuring instrument is installed on the outer lid 12, and at least a portion of the oxygen content measuring instrument extends into the accommodating chamber 102 to detect the oxygen content in the accommodating chamber 102.

Specifically, as shown in fig. 17, a heating device 40 such as an annular heating tube 6 is disposed in the cooking cavity 101, and the annular heating tube 6 is disposed around the inner container 21. This allows the receiving chamber 102 to be heated appropriately to bring the temperature of the receiving chamber 102 to the desired temperature.

More advantageously, as shown in fig. 17, the outer lid 12 is provided with a seal ring 5 for sealing a gap between the lower surface of the outer lid 12 and the upper end of the inner container 21. This can improve the sealing effect of the accommodating chamber 102 and ensure the formation of the negative pressure environment.

More specifically, as shown in fig. 17, the stirring rod 7 is arranged in the inner container 21, the driver 9 is arranged on the outer shell 11, and the driver 9 is adapted to be in transmission connection with the stirring rod 7. Specifically, the vacuum cooking apparatus 100 further comprises a transmission shaft 8, and the driver 9 is in transmission connection with the stirring rod 7 through the transmission shaft 8. This allows the raw materials to be stirred by the stirring rod 7 and sufficiently mixed.

Based on the vacuum cooking device of the foregoing embodiment, the embodiment of the present invention further provides a control method of the vacuum cooking device.

Vacuum cooking device includes shell body, inner bag, lid, heating device and vacuum apparatus, prescribes a cooking cavity in the shell body, and the culinary art intracavity is located to the inner bag, prescribes a limit to the open chamber that holds in top in the inner bag in order to be used for holding the food of required culinary art, and the lid is used for opening or closing and holds, and heating device heats the chamber to holding the chamber, and vacuum apparatus is used for holding the chamber when holding the chamber airtight and carries out the evacuation so that hold the intracavity and form the negative pressure.

Fig. 18 is a flowchart of a control method of a vacuum cooking apparatus according to an embodiment of the present invention. As shown in fig. 18, the control method of the vacuum cooking apparatus includes the steps of:

s1: detecting the vacuum degree in the accommodating cavity in the cooking process, wherein the cooking process comprises a baking stage;

s2: acquiring a preset vacuum degree range;

s3: and when the vacuum cooking device enters a baking stage, the vacuum device is controlled to vacuumize, and the heating device is controlled to heat until the vacuum degree in the accommodating cavity is within a preset vacuum degree range.

According to an embodiment of the present invention, the control method of the vacuum cooking apparatus further includes: receiving a cooking effect and/or a cooking mode selected by a user through a control panel; and determining a preset vacuum degree range according to the cooking effect and/or the cooking mode selected by the user.

According to an embodiment of the present invention, the control panel has a plurality of cooking effects and/or a plurality of cooking modes, and the control device prestores a plurality of oxygen content ranges, wherein the preset vacuum degree range is determined according to the cooking effect and/or the cooking mode selected by the user, including: determining a corresponding oxygen content range according to the cooking effect and/or the cooking mode selected by the user; and determining a preset vacuum degree range according to the corresponding oxygen content range.

According to one embodiment of the invention, the cooking mode comprises bread making and nut making, wherein when the cooking mode is bread making and the cooking effect is thin-skin bread, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L; when the cooking mode is bread making and the cooking effect is thick-skin bread, the preset vacuum degree range is 50 Kpa-70 Kpa, and the oxygen content range is 155 mg/L-217 mg/L; when the cooking mode is to make nuts, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L.

According to one embodiment of the present invention, the vacuum cooking apparatus further comprises a stirring device, wherein when the cooking mode is bread making, the temperature in the containing cavity is maintained at a first baking temperature by controlling the heating device when the vacuum cooking apparatus is in a baking stage; when the cooking mode is nut making, when the vacuum cooking device is in a baking stage, the heating device is controlled to maintain the temperature in the containing cavity at a first baking temperature, and meanwhile, the stirring device is controlled to stir.

In the following, the cooking process of the bread maker will be described in detail by taking the bread making using the bread maker as an example, and as shown in fig. 19, the control method of the vacuum cooking apparatus includes the following steps:

s101: starting the bread machine and entering a stirring stage.

During the stirring process, the stirring device can be controlled to rotate at a first preset rotating speed, such as 300r/min, and the stirring device is controlled to work for a preset stirring time, such as 40 min.

S102: and entering a fermentation stage.

Wherein, through controlling heating device to make the temperature of holding the intracavity maintain and predetermine fermentation temperature, ferment the dough. And, when the duration of the fermentation phase reaches a preset fermentation time, e.g. 40min, the fermentation phase is completed.

S103: and detecting the vacuum degree in the accommodating cavity.

S104: and judging whether the detected vacuum degree in the accommodating cavity is within a preset vacuum degree range.

If yes, go to step S106; if not, step S105 is performed.

Wherein, when the cooking effect is thin-skin bread, the preset vacuum degree range is 10 Kpa-30 Kpa, and the oxygen content range is 31 mg/L-93 mg/L; when the cooking effect is thick-skin bread, the preset vacuum degree range is 50 Kpa-70 Kpa, and the oxygen content range is 155 mg/L-217 mg/L.

S105: and controlling the vacuum device to start to vacuumize, and returning to the step S104.

S106: and controlling the heating device to perform heating work so as to bake the dough.

Wherein, the heating device can be controlled to perform heating operation, so as to maintain the temperature in the accommodating cavity at a first baking temperature, such as 180 ℃. And, begin timing at the same time when heating begins, when timing time reaches preset baking time, for example 40min, heating device stop work, cook and finish.

Therefore, the cooking effect in the cooking cavity can be effectively controlled, for example, the depth of the bread crust is controlled, the various requirements of the user are met, and the experience of the user is improved.

In the following, a cooking process of the bread maker will be described in detail by taking an example of making nuts using a bread maker, and as shown in fig. 20, a control method of the vacuum cooking apparatus includes the steps of:

s201: nuts and ingredients are put into the containing cavity, the cover body is closed to form a sealed containing cavity between the cover body and the inner pot, and then the bread maker is started.

S202: and detecting the vacuum degree in the accommodating cavity.

S203: and judging whether the detected vacuum degree in the accommodating cavity is within a preset vacuum degree range.

If so, perform step S10205; if not, step S204 is performed.

Wherein, when the nut is made, the preset vacuum degree range is 10Kpa to 30Kpa, and the oxygen content range is 31mg/L to 93 mg/L.

S204: and controlling the vacuum device to start to vacuumize, and returning to the step S203.

S205: and controlling the heating device to perform heating work so as to bake the nuts.

Wherein, the heating device can be controlled to perform heating operation, so that the temperature in the accommodating cavity is maintained at a second baking temperature, such as 150 ℃, and the stirring device is controlled to rotate at a second preset rotating speed, such as 12 r/min. And, begin timing at the same time when heating begins, when timing time reaches preset baking time, for example 40min, heating device stop work, cook and finish.

Therefore, the cooking effect in the cooking cavity can be effectively controlled, for example, harmful substances are reduced, the requirements of users in various aspects are met, and the experience of the users is improved.

In summary, according to the control method of the vacuum cooking device in the embodiment of the invention, the vacuum device is controlled to vacuumize before the vacuum cooking device enters the baking stage, and the heating device is controlled to heat until the vacuum degree in the accommodating cavity is within the preset vacuum degree range, so that the cooking effect in the cooking cavity can be effectively controlled, the various requirements of the user can be met, and the user experience can be improved.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.