阅读说明：本技术 烹饪设备和烹饪控制方法 (Cooking equipment and cooking control method ) 是由 杨云 程志喜 吕伟刚 罗嗣胜 卢均山 于 2018-05-21 设计创作，主要内容包括：本发明提供了一种烹饪设备,包括：锅体；设置在锅体中的内锅；盖设于锅体上并与内锅配合形成密闭空间的上盖；抽气装置,设置在上盖中,用于抽取密闭空间内的空气以形成负压；第一压力开关,设置在上盖中,用于检测密闭空间内的负压,并所述负压生成第一开通信号或第一断开信号；控制器,抽气装置和第一压力开关均电连接至控制器,用于在烹饪设备处于保压阶段时,根据第一开通信号控制抽气装置工作在抽负压状态或根据第一断开信号控制抽气装置工作在停止抽气状态。该技术方案,根据压力开关在烹饪设备的密闭空间中的负压大小生成的触发信号控制抽气装置的工作状态,实现了对负压的取值区间的有效限制,并保证了烹饪设备的保压阶段所需的负压。(The present invention provides a kind of cooking equipments, comprising: pot body；Interior pot in pot body is set；It is covered in pot body and cooperatively forms with interior pot the upper cover of confined space；Air extractor is arranged in upper cover, for extracting the air in confined space to form negative pressure；First pressure switch, is arranged in upper cover, and for detecting the negative pressure in confined space, and the negative pressure generates the first open signal or the first cut-off signal；Controller, air extractor and first pressure switch are electrically connected to controller, for controlling air extractor work according to the first open signal and taking out negative pressure state or stopping pumping state according to the control air extractor work of the first cut-off signal when cooking equipment is in packing stage.The technical solution, according to the working condition for the trigger signal control air extractor that vacuum magnitude of the pressure switch in the confined space of cooking equipment generates, effective limitation to the value interval of negative pressure is realized, and negative pressure needed for ensure that the packing stage of cooking equipment.)

1. a kind of cooking equipment characterized by comprising

Pot body；

Interior pot is arranged in the pot body；

Upper cover is covered in the pot body, and cooperatively forms confined space with the interior pot；

Air extractor is arranged in the upper cover, for extracting the air in the confined space to form negative pressure；

First pressure switch, is arranged in the upper cover, for detecting the negative pressure in the confined space, and according to described closed Negative pressure in space generates the first open signal or the first cut-off signal；

Controller, the air extractor and first pressure switch are electrically connected to the controller, and the controller is used for When the cooking equipment is in packing stage, the air extractor work is controlled according to first open signal and is taking out negative pressure State controls the air extractor work in stopping pumping state according to first cut-off signal.

2. cooking equipment according to claim 1, which is characterized in that

When the cooking equipment is in the packing stage, negative pressure of the first pressure switch in the confined space is small First open signal and first pressure switch are generated when the first default negative pressure from the confined space First cut-off signal is generated after the first preset time from when interior negative pressure is greater than the first default negative pressure.

3. cooking equipment according to claim 2, which is characterized in that

The cooking equipment detects that the negative pressure in the confined space is greater than described first in first pressure switch for the first time Enter the packing stage when default negative pressure；

The first default negative pressure is minimum negative pressure of the negative pressure in the packing stage in the confined space.

4. cooking equipment according to claim 1, which is characterized in that

When the cooking equipment is in the packing stage, negative pressure of the first pressure switch in the confined space is big It is generated when the second default negative pressure first described in first cut-off signal and first pressure switch self-generating First open signal is generated after the second preset time from when cut-off signal.

5. cooking equipment according to claim 4, which is characterized in that

The cooking equipment detects that the negative pressure in the confined space is greater than or equal to institute in first pressure switch for the first time Enter the packing stage when stating the second default negative pressure；

The second default negative pressure is highest negative pressure of the negative pressure in the packing stage in the confined space.

6. cooking equipment according to claim 1, which is characterized in that further include:

Second pressure switch, is arranged in the upper cover and is electrically connected to the controller, for detecting in the confined space Negative pressure, and the second open signal or the second cut-off signal are generated according to the negative pressure in the confined space；And

The controller is specifically used for: when the cooking equipment is in packing stage, being switched according to the first pressure in institute It states first open signal generated when the negative pressure in confined space presets negative pressure less than or equal to third and controls the pumping Device work is being taken out negative pressure state, and is being greater than or equal to according to negative pressure of the second pressure switch in the confined space Second cut-off signal generated when four default negative pressure controls the air extractor work and is stopping pumping state；Or

It is small according to negative pressure of the second pressure switch in the confined space when the cooking equipment is in packing stage Second open signal generated when third presets negative pressure controls the air extractor work and is taking out negative pressure state When, and switched when the negative pressure in the confined space is greater than or equal to four default negative pressure and generated according to the first pressure First cut-off signal control air extractor work and stopping pumping state；

Wherein, the 4th default negative pressure is greater than the default negative pressure of the third.

7. cooking equipment according to claim 6, which is characterized in that

The cooking equipment is switched in the first pressure or second pressure switch is detected for the first time in the confined space Negative pressure be greater than the third preset negative pressure when enter the packing stage；

It is minimum negative pressure described in negative pressure in the confined space in packing stage and described that the third, which presets negative pressure, Four default negative pressure are highest negative pressure of the negative pressure in the packing stage in the confined space.

8. cooking equipment according to any one of claim 1 to 7, which is characterized in that further include: timer, and it is described Controller electrical connection, the duration for being in the packing stage for counting the cooking equipment；And

The controller is also used to: when the duration of timer statistics reaches default pressure maintaining duration, controlling institute Cooking equipment is stated to exit the packing stage and control the air in the air extractor termination extraction confined space.

9. cooking equipment according to any one of claim 1 to 7, which is characterized in that further include:

Exhaust apparatus, setting are electrically connected in the upper cover, and with the controller, and when the cooking equipment is in described Exhaust apparatus work row in off position and when the cooking equipment exits packing stage when packing stage Device of air works in opening state.

10. cooking equipment according to any one of claim 1 to 7, which is characterized in that

The upper cover includes the cover, inner cover and cover board set gradually, wherein the inner cover is connected to the pot body, the lid Plate and the interior pot cooperatively form the confined space, and

Be provided with bleeding point on the cover board, be provided with switching device and exhaust tube in the inner cover, the exhaust tube be used for according to The secondary air extractor, the switching device and the bleeding point, the switching device of connecting is electrically connected with the controller, is used On-off between the control confined space and the air extractor.

11. a kind of cooking control method, which is characterized in that for the cooking equipment as described in any one of claims 1 to 10, The cooking control method includes:

The air extractor starting operation is controlled to extract the air in the confined space；

Determine whether the cooking equipment enters packing stage；

When determining that the cooking equipment enters the packing stage, according to first pressure switch according to detecting The first open signal or the first cut-off signal control air extractor that negative pressure in confined space generates correspond to work and are taking out Negative pressure state stops pumping state.

12. cooking control method according to claim 11, which is characterized in that described to switch root according to the first pressure The first open signal generated according to the negative pressure in the confined space detected or the first cut-off signal control the pumping dress Corresponding work is set to take out negative pressure state or stopping pumping state, comprising:

Whenever receiving negative pressure of the first pressure switch in the confined space less than or equal to the first default negative pressure When first open signal generated, controls the air extractor work and taking out negative pressure state；

It is switched from the negative pressure in the confined space is greater than the described first default negative pressure whenever receiving the first pressure The first preset time after generate first cut-off signal when, control air extractor work and stopping pumping state.

13. cooking control method according to claim 12, which is characterized in that the determination cooking equipment whether into Enter packing stage, comprising:

Determine whether the first pressure switch detects that the negative pressure in the confined space is greater than first preset negative for the first time Pressure；

If so, determining that the cooking equipment enters the packing stage, otherwise determine that the cooking equipment does not enter the pressure maintaining Stage；

The first default negative pressure is minimum negative pressure of the negative pressure in the packing stage in the confined space.

14. cooking control method according to claim 11, which is characterized in that described to switch root according to the first pressure The first open signal generated according to the negative pressure in the confined space detected or the first cut-off signal control the pumping dress Corresponding work is set to take out negative pressure state or stopping pumping state, comprising:

Whenever receiving negative pressure of the first pressure switch in the confined space more than or equal to the second default negative pressure When first cut-off signal generated, controls the air extractor work and stopping pumping state；

It is generated after the second preset time from whenever receiving the first cut-off signal described in the first pressure switch self-generating First open signal when, control air extractor work and taking out negative pressure state.

15. cooking control method according to claim 14, which is characterized in that the determination cooking equipment whether into Enter packing stage, comprising:

Determine whether the first pressure switch detects that the negative pressure in the confined space is greater than or equal to described second for the first time Default negative pressure；

If so, determining that the cooking equipment enters the packing stage, otherwise determine that the cooking equipment does not enter the pressure maintaining Stage；

The second default negative pressure is highest negative pressure of the negative pressure in the packing stage in the confined space.

16. cooking control method according to claim 11, which is characterized in that the cooking equipment further includes for detecting Negative pressure in the confined space simultaneously generates the second open signal or the second cut-off signal according to the negative pressure in the confined space Second pressure switch；And

The cooking control method specifically includes:

When determining that the cooking equipment enters the packing stage, switched according to the first pressure whenever the confined space First open signal that interior negative pressure generates when presetting negative pressure less than or equal to third controls the air extractor work and exists Negative pressure state is taken out, and is preset according to second pressure switch whenever the negative pressure in the confined space is greater than or equal to the 4th Second cut-off signal generated when negative pressure controls the air extractor work and is stopping pumping state；Or

When determining that the cooking equipment enters the packing stage, switched according to the second pressure whenever the confined space Second open signal that interior negative pressure generates when presetting negative pressure less than or equal to third controls the air extractor work and exists Negative pressure state is taken out, and is preset according to first pressure switch whenever the negative pressure in the confined space is greater than or equal to the 4th First cut-off signal generated when negative pressure controls the air extractor work and is stopping pumping state；

Wherein, the 4th default negative pressure is greater than the default negative pressure of the third.

17. cooking control method according to claim 16, which is characterized in that the determination cooking equipment whether into Enter packing stage, comprising:

Determine whether the first pressure switch or second pressure switch detect the negative pressure in the confined space for the first time Negative pressure is preset greater than the third；

If so, determining that the cooking equipment enters the packing stage, otherwise determine that the cooking equipment does not enter the pressure maintaining Stage；

It is minimum negative pressure described in negative pressure in the confined space in packing stage and described that the third, which presets negative pressure, Four default negative pressure are highest negative pressure of the negative pressure in the packing stage in the confined space.

18. cooking control method described in any one of 1 to 17 according to claim 1, which is characterized in that further include:

When determining that the cooking equipment is in the duration of the packing stage and reaches default pressure maintaining duration, cooked described in control Equipment of preparing food, which exits the packing stage and controls the air extractor, terminates the air extracted in the confined space.

19. cooking control method according to claim 18, which is characterized in that further include:

When the cooking equipment exits the packing stage, the exhaust apparatus for controlling the cooking equipment is switched by closed state To opening state, it is exhausted so as to be connected between the confined space and external environment.

Technical field

The present invention relates to living electric apparatus technical fields, in particular to cooking equipment and cooking control method.

Background technique

Currently, the tasty effect of food materials in cooking process can be improved in the negative pressure function of pressure cooker, can also be to culinary art after Food carries out vacuum freshness retaining processing to extend the fresh keeping time of food.But above functions is all based on pressure cooker to pumping negative pressure Pressure control realize, however in the related art pressure control accuracy it is lower, to be unable to get preferable culinary art Effect.

Summary of the invention

The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.

For this purpose, being set according to pressure switch in culinary art an object of the present invention is to provide a kind of new cooking equipment The trigger signal that vacuum magnitude in standby confined space generates controls the working condition of air extractor, realizes to negative pressure Effective restriction of value interval, and negative pressure needed for ensure that the packing stage of cooking equipment, can be improved cooking for cooking equipment It prepares food effect, and promotes the culinary art experience of user.

It is another object of the present invention to propose a kind of cooking control method.

To realize at least one above-mentioned purpose, according to an embodiment of the invention, proposing a kind of cooking equipment, comprising: pot Body；Interior pot is arranged in the pot body；Upper cover is covered in the pot body, and cooperatively forms confined space with the interior pot； Air extractor is arranged in the upper cover, for extracting the air in the confined space to form negative pressure；First pressure is opened It closes, is arranged in the upper cover, for detecting the negative pressure in the confined space, and it is raw according to the negative pressure in the confined space At the first open signal or the first cut-off signal；Controller, the air extractor and first pressure switch are electrically connected to The controller, the controller is used for when the cooking equipment is in packing stage, according to the first open signal control The air extractor work is made to take out negative pressure state or stopped according to first cut-off signal control air extractor work Only it is evacuated state.

In the technical scheme, extract upper cover by the air extractor being arranged in upper cover and interior pot cooperatively form it is close The air in space is closed, so as to form negative pressure in the confined space of cooking equipment, and then the by being arranged in upper cover first pressure Power switchs to detect the negative pressure in confined space, and first pressure switch is according to the vacuum magnitude detected in confined space Generate corresponding trigger signal, i.e. the first open signal or the first cut-off signal, then when cooking equipment is in packing stage, control Device processed receives the first open signal that first pressure switch generates or can correspondingly control adjustment after the first cut-off signal The working condition of air extractor, to guarantee negative pressure of the cooking equipment needed for packing stage, and then by well effectively bearing It presses control function to improve the tasty effect of food materials or realizes the fresh-keeping effect etc. to food materials, specifically, when first pressure switchs Air of the control air extractor work in extraction confined space is negative to increase when the trigger signal of generation is the first open signal The pumping negative pressure state of pressure, and the control air extractor work when the trigger signal that first pressure switch generates is the first cut-off signal The stopping that negative pressure in confined space is depressured naturally is evacuated state, in this way, the culinary art effect of cooking equipment can be effectively improved Fruit, promotes the culinary art experience of user, while can reduce air extractor and run generated power consumption；Moreover, compared to pressure is used Force snesor uses the cost of pressure switch lower for detecting the negative pressure in confined space, and then can effectively reduce culinary art The production cost of equipment.

In addition, the cooking equipment in above-described embodiment provided by the invention can also have following additional technical feature:

In the above-mentioned technical solutions, it is preferable that when the cooking equipment is in the packing stage, the first pressure It switchs when the negative pressure in the confined space is less than or equal to the first default negative pressure and generates first open signal, Yi Jisuo After stating the first preset time of the first pressure switch from the negative pressure in the confined space is greater than the described first default negative pressure Generate first cut-off signal.

In the technical scheme, when cooking equipment is in packing stage, whenever the negative pressure in confined space is less than Or first pressure switch then generates the first open signal when equal to the case where the first default negative pressure, and controller is made to control air extractor Work increases the negative pressure in confined space taking out negative pressure state, further whenever the negative pressure in confined space is increased above this Start timing when the first default negative pressure, and whenever the time duration that the negative pressure in confined space is greater than the first default negative pressure reaches After first preset time, i.e., after air extractor continues to operate in and takes out the first preset time of negative pressure state, first pressure switch The first cut-off signal is generated, subtracts controller control air extractor work by way of being depressured naturally stopping pumping state Negative pressure in packing stage in confined space is limited in repeatedly with the first default negative pressure by the negative pressure in small confined space It is negative in the pressure range for depressing limit value, and the first default negative pressure is reached by negative pressure of the limitation air extractor in confined space Pumping negative pressure duration afterwards reaches the restriction of the upper limit value to the negative pressure in confined space, to realize the value interval to negative pressure Effective restriction, improve to the accuracy of vacuum cavitations in the confined space of cooking equipment；Wherein stop when air extractor is in When pumping state, the negative pressure that the factors such as moisture evaporation in cooking equipment itself gas leakage, interior pot will lead to confined space gradually subtracts It is small.

In any of the above-described technical solution, it is preferable that the cooking equipment detects for the first time in first pressure switch Negative pressure in the confined space enters the packing stage when being greater than the first default negative pressure；The first default negative pressure is Minimum negative pressure of the negative pressure in the packing stage in the confined space.

In the technical scheme, cooking equipment detects that negative pressure in confined space is greater than the with first pressure switch for the first time Enter packing stage when one default negative pressure for starting point, to meet demand of the cooking equipment to the vacuum magnitude of packing stage；And have It is more than the permitted minimum negative pressure of the packing stage that the value interval of the negative pressure of confined space can be limited in cooking equipment by body, While then realizing effective limitation to the value interval of negative pressure, culinary art demand can be unable to satisfy to avoid too small due to negative pressure And then influence the culinary art effect of food materials.

In any of the above-described technical solution, it is preferable that when the cooking equipment is in the packing stage, described first Negative pressure of the pressure switch in the confined space generates first cut-off signal when being greater than or equal to the second default negative pressure, with And when the first cut-off signal described in first pressure switch self-generating from the second preset time after to generate described first open-minded Signal.

In the technical scheme, when cooking equipment is in packing stage, whenever the negative pressure in confined space is greater than Or first pressure switch then generates the first cut-off signal when equal to the case where the second default negative pressure, and controller is made to control air extractor Work reduces the negative pressure in confined space stopping pumping state by way of being depressured naturally, at this time due to cooking equipment from The negative pressure that the factors such as the moisture evaporation in body gas leakage, interior pot will lead to confined space is gradually reduced, further whenever first pressure Switch starts timing when generating first cut-off signal, and the time duration that is depressured naturally of the negative pressure in confined space reaches the After two preset times, i.e., after air extractor stops the second preset time of pumping, first pressure switch generates first and opens letter Number, so that controller control air extractor work is increased the negative pressure in confined space taking out negative pressure state, repeatedly, by pressure maintaining Negative pressure in stage in confined space is limited in be negative in the pressure range for pressing upper limit value with the second default negative pressure, and passes through limitation Air extractor is in the time duration of stopping pumping state in packing stage to reach the lower limit value to the negative pressure in confined space Restriction improve to realize effective restriction to the value interval of negative pressure to vacuum cavitations in the confined space of cooking equipment Accuracy.

In any of the above-described technical solution, it is preferable that the cooking equipment detects for the first time in first pressure switch Negative pressure in the confined space enters the packing stage when being greater than or equal to the second default negative pressure；Described second is default Negative pressure is highest negative pressure of the negative pressure in the packing stage in the confined space.

In the technical scheme, cooking equipment be greater than with the negative pressure that first pressure switch detects in confined space for the first time or Enter packing stage when equal to the second default negative pressure for starting point, to meet cooking equipment to the need of the vacuum magnitude of packing stage It asks；And the permitted highest of packing stage that the value interval of the negative pressure of confined space is limited in cooking equipment can specifically be born Pressure can damage culinary art hereinafter, while then realizing effective limitation to the value interval of negative pressure to avoid excessive due to negative pressure The self-operating function of equipment and the culinary art effect for influencing food materials.

In any of the above-described technical solution, it is preferable that the cooking equipment further include: second pressure switch is arranged in institute The controller is stated in upper cover and is electrically connected to, for detecting the negative pressure in the confined space, and according to the confined space Interior negative pressure generates the second open signal or the second cut-off signal；And the controller is specifically used for: in the cooking equipment When in packing stage, third preset negative is less than or equal to according to negative pressure of the first pressure switch in the confined space First open signal generated when pressure controls the air extractor work and is taking out negative pressure state, and according to second pressure Negative pressure of the power switch in the confined space is greater than or equal to the second cut-off signal control generated when four default negative pressure It makes the air extractor work and is stopping pumping state；Or when the cooking equipment is in packing stage, according to described Negative pressure of two pressure switches in the confined space be less than or equal to third preset generated when negative pressure described second open letter Number control air extractor work switchs in the confined space when taking out negative pressure state, and according to the first pressure Negative pressure when being greater than or equal to four default negative pressure first cut-off signal that generates control the air extractor work and stopping Only it is evacuated state；Wherein, the 4th default negative pressure is greater than the default negative pressure of the third.

In the technical scheme, in addition to being arranged in the upper cover of cooking equipment for being generated according to the negative pressure in confined space First open signal or the first pressure of the first cut-off signal switch, can also be arranged in upper cover for according in confined space Negative pressure generate the second pressure switch of the second open signal or the second cut-off signal, then when cooking equipment is in packing stage When, it can be switched by first pressure and second pressure switchs the upper limit realized to the value interval of the negative pressure in confined space Value, lower limit value accurately define, i.e., when the negative pressure in confined space occurs being less than or equal to the case where third presets negative pressure, Open signal is generated by the way that one in two pressure switches is corresponding, controller control air extractor work is made to take out negative pressure state Increase the negative pressure in confined space, further to be greater than or equal to the 4th default whenever negative pressure in confined space increases to appearance When the case where negative pressure, cut-off signal is generated by another correspondence in two pressure switches, controller is made to control air extractor Work reduces the negative pressure in confined space stopping pumping state by way of being depressured naturally, at this time due to cooking equipment from The negative pressure that the factors such as the moisture evaporation in body gas leakage, interior pot will lead to confined space is gradually reduced, repeatedly, by packing stage Negative pressure in middle confined space is limited to third and presets between negative pressure and the 4th default negative pressure, improves the confined air to cooking equipment The accuracy of interior vacuum cavitations.

In any of the above-described technical solution, it is preferable that the cooking equipment switchs or described second in the first pressure Pressure switch detects that the negative pressure in the confined space is greater than when the third presets negative pressure for the first time and enters the packing stage； It is minimum negative pressure described in negative pressure in the confined space in packing stage and described 4th pre- that the third, which presets negative pressure, If negative pressure is highest negative pressure of the negative pressure in the packing stage in the confined space.

In the technical scheme, cooking equipment is switched with first pressure or second pressure switch detects confined space for the first time Interior negative pressure is greater than when third presets negative pressure and enters packing stage for starting point, big to the negative pressure of packing stage to meet cooking equipment Small demand；And specifically the value interval of the negative pressure of confined space can be limited in cooking equipment packing stage it is permitted More than minimum negative pressure and highest negative pressure is hereinafter, so while realizing effective limitation to the value interval of negative pressure, can keep away Exempt to be unable to satisfy culinary art demand since negative pressure is too small and then influence the culinary art effects of food materials, and avoid since negative pressure is excessive and It damages the self-operating function of cooking equipment and influences the culinary art effect of food materials.

In any of the above-described technical solution, it is preferable that the cooking equipment further include: timer, with the controller electricity Connection, the duration for being in the packing stage for counting the cooking equipment；And the controller is also used to: working as institute The duration of timer statistics is stated when reaching default pressure maintaining duration, the cooking equipment is controlled and exits the packing stage And it controls the air extractor and terminates the air extracted in the confined space.

In the technical scheme, can by the timer of cooking equipment to cooking equipment be in packing stage it is lasting when Length is monitored, and can exit packing stage in time to be at when the duration of packing stage reaches default pressure maintaining duration And pumping is terminated, pressure holding effect is controlled best.

In any of the above-described technical solution, the cooking equipment further include: exhaust apparatus is arranged in the upper cover, and It is electrically connected with the controller, and the exhaust apparatus work is being closed when the cooking equipment is in the packing stage State and when the cooking equipment exits the packing stage exhaust apparatus work in opening state.

In the technical scheme, it is additionally provided with exhaust apparatus in the upper cover of cooking equipment, when cooking equipment is in pressure maintaining rank Completely cut off exhaust apparatus work by the confined space of cooking equipment and external environment in off position, guarantees the negative of culinary art Pressure demand, and exhaust apparatus can be made to work after cooking equipment has realized corresponding vacuum cavitations function and exits packing stage Confined space is connected to external environment in opening state, the air in external environment is made to enter confined air by exhaust apparatus In, so that confined space is gradually brought to normal pressure state by negative pressure state, so that cooking equipment be made to can continue to execute Subsequent cooking process, and convenient for ensureing that user opens the operational safety of upper cover.

Wherein, the exhaust apparatus preferably includes exhaust valve.

In any of the above-described technical solution, it is preferable that the upper cover includes the cover, inner cover and cover board set gradually, In, the inner cover is connected to the pot body, and the cover board and the interior pot cooperatively form the confined space and the cover board On be provided with bleeding point, be provided with switching device and exhaust tube in the inner cover, the exhaust tube is for being sequentially connected the pumping Device of air, the switching device and the bleeding point, the switching device are electrically connected with the controller, described close for controlling Close the on-off between space and the air extractor.

In the technical scheme, upper cover is connected by its inner cover with pot body, and when upper cover be located in pot body, is passed through Its cover board and interior pot cooperatively form confined space, and the cover board will effectively obstruct the vapor generated during the cooking process, Operating circuit therein is destroyed to prevent water steam from entering upper cover；Bleeding point can also be further set on the cover board, with logical Crossing bleeding point is connected to air extractor with confined space, while switching device being arranged between air extractor and confined space, and When air extractor is in and takes out negative pressure state, control switch device opening is connected to air extractor with confined space, to guarantee to take out Device of air can smoothly extract the air in confined space, and when air extractor is in stopping pumping state, control switch Device closing completely cuts off air extractor and confined space, to prevent the air in external environment from entering confined space by bleeding point In and accelerate the reduction of negative pressure in confined space, while the flexibility in order to guarantee air extractor and switching device installation, And guarantee that the air in confined space can smoothly be discharged, air extractor, switching device and bleeding point can be passed through into pumping Pipe is sequentially connected, to form complete extract system.

In any of the above-described technical solution, it is preferable that the switching device includes solenoid valve or check valve.

In any of the above-described technical solution, it is preferable that the air extractor includes vacuum pump.

In any of the above-described technical solution, it is preferable that the cooking equipment further include: heating device is arranged in the pot In body, for being heated to the interior pot.

In any of the above-described technical solution, it is preferable that the cooking equipment includes electric cooker or electric pressure cooking saucepan.

According to the second aspect of the invention, a kind of cooking control method is proposed, the technology for such as above-mentioned first aspect Cooking equipment described in any one of scheme, the cooking control method include: the control air extractor starting operation to extract Air in the confined space；Determine whether the cooking equipment enters packing stage；When determining that the cooking equipment enters When the packing stage, according to first pressure switch according to first of the negative pressure generation in the confined space detected Open signal or the first cut-off signal control the air extractor and correspond to work in pumping negative pressure state or stop pumping state.

In the technical scheme, the air in confined space is extracted by the air extractor of cooking equipment, it is negative to be formed Pressure, further after cooking equipment enters packing stage, according to first pressure switch according to the negative pressure detected in confined space Size generates corresponding trigger signal, i.e. the first open signal or the first cut-off signal, the work shape of control adjustment air extractor State to guarantee negative pressure of the cooking equipment needed for packing stage, and then improves food by good effective vacuum cavitations function The tasty effect of material realizes that the fresh-keeping effect etc. to food materials is specifically when first pressure switchs the trigger signal generated Air extractor work is controlled when the first open signal is extracting the air in confined space to increase the pumping negative pressure state of negative pressure, and When the trigger signal that first pressure switch generates is the first cut-off signal, control air extractor works negative in confined space The stopping pumping state of pressure nature decompression promotes the culinary art of user in this way, the culinary art effect of cooking equipment can be effectively improved Experience, while air extractor can be reduced and run generated power consumption；Moreover, compared to using pressure sensor to detect confined air It is lower using the cost of pressure switch for interior negative pressure, and then the production cost of cooking equipment can be effectively reduced.

In the above-mentioned technical solutions, it is preferable that described described closed according to detecting according to first pressure switch The first open signal or the first cut-off signal that negative pressure in space generates control the air extractor and correspond to work in pumping negative pressure State stops pumping state, comprising: is less than whenever receiving negative pressure of the first pressure switch in the confined space Or generated when equal to the first default negative pressure first open signal when, control air extractor work and taking out negative pressure shape State；It is switched from the negative pressure in the confined space is greater than the described first default negative pressure whenever receiving the first pressure When first cut-off signal generated after the first preset time, controls the air extractor work and stopping pumping state.

In the technical scheme, when cooking equipment is in packing stage, whenever the negative pressure in confined space is less than Or corresponding the first open signal generated is switched according to first pressure when equal to the case where the first default negative pressure and controls air extractor Work increases the negative pressure in confined space taking out negative pressure state, further whenever the negative pressure in confined space is increased above this Start timing when the first default negative pressure, and whenever the time duration that the negative pressure in confined space is greater than the first default negative pressure reaches After first preset time, i.e., after air extractor continues to operate in and takes out the first preset time of negative pressure state, according to first pressure Corresponding the first cut-off signal control air extractor work generated of switch is stopping pumping state come by way of being depressured naturally Negative pressure in packing stage in confined space is limited in repeatedly with the first preset negative by the negative pressure reduced in confined space Pressure is negative in the pressure range for depressing limit value, and reaches the first preset negative by negative pressure of the limitation air extractor in confined space Pumping negative pressure duration after pressure reaches the restriction of the upper limit value to the negative pressure in confined space, to realize the value area to negative pressure Between effective restriction, improve to the accuracy of vacuum cavitations in the confined space of cooking equipment；Wherein stop when air extractor is in When being only evacuated state, the factors such as moisture evaporation in cooking equipment itself gas leakage, interior pot will lead to the negative pressure of confined space gradually Reduce.

In any of the above-described technical solution, it is preferable that whether the determination cooking equipment enters packing stage, packet It includes: determining whether the first pressure switch detects that the negative pressure in the confined space is greater than first preset negative for the first time Pressure；If so, determining that the cooking equipment enters the packing stage, otherwise determine that the cooking equipment does not enter the pressure maintaining rank Section；The first default negative pressure is minimum negative pressure of the negative pressure in the packing stage in the confined space.

In the technical scheme, cooking equipment detects that negative pressure in confined space is greater than the with first pressure switch for the first time Enter packing stage when one default negative pressure for starting point, to meet demand of the cooking equipment to the vacuum magnitude of packing stage；And have It is more than the permitted minimum negative pressure of the packing stage that the value interval of the negative pressure of confined space can be limited in cooking equipment by body, While then realizing effective limitation to the value interval of negative pressure, culinary art demand can be unable to satisfy to avoid too small due to negative pressure And then influence the culinary art effect of food materials.

In any of the above-described technical solution, it is preferable that described to be switched according to detecting according to the first pressure The first open signal or the first cut-off signal control air extractor that negative pressure in confined space generates correspond to work and are taking out Negative pressure state stops pumping state, comprising: switchs the negative pressure in the confined space whenever receiving the first pressure When first cut-off signal generated when more than or equal to the second default negative pressure, controls the air extractor work and stopping taking out Gaseity；It is raw after the second preset time from whenever receiving the first cut-off signal described in the first pressure switch self-generating At first open signal when, control air extractor work and taking out negative pressure state.

In the technical scheme, when cooking equipment is in packing stage, whenever the negative pressure in confined space is greater than Or corresponding the first cut-off signal generated is switched according to first pressure when equal to the case where the second default negative pressure and controls air extractor Work reduces the negative pressure in confined space stopping pumping state by way of being depressured naturally, at this time due to cooking equipment from The negative pressure that the factors such as the moisture evaporation in body gas leakage, interior pot will lead to confined space is gradually reduced, further whenever first pressure Switch starts timing when generating first cut-off signal, and whenever the time duration that the negative pressure in confined space is depressured naturally reaches After second preset time, i.e., after air extractor stops the second preset time of pumping, corresponding generate is switched according to first pressure The control air extractor work of the first open signal increase the negative pressure in confined space taking out negative pressure state, repeatedly, will Negative pressure in packing stage in confined space is limited in be negative in the pressure range for pressing upper limit value with the second default negative pressure, and is passed through Limitation air extractor is in the time duration of stopping pumping state in packing stage to reach under the negative pressure in confined space The restriction of limit value improves to realize effective restriction to the value interval of negative pressure to negative pressure in the confined space of cooking equipment The accuracy of control.

In any of the above-described technical solution, it is preferable that whether the determination cooking equipment enters packing stage, packet It includes: it is pre- to determine whether the first pressure switch detects that the negative pressure in the confined space is greater than or equal to described second for the first time If negative pressure；If so, determining that the cooking equipment enters the packing stage, otherwise determine that the cooking equipment does not enter the guarantor The pressure stage；The second default negative pressure is highest negative pressure of the negative pressure in the packing stage in the confined space.

In the technical scheme, cooking equipment be greater than with the negative pressure that first pressure switch detects in confined space for the first time or Enter packing stage when equal to the second default negative pressure for starting point, to meet cooking equipment to the need of the vacuum magnitude of packing stage It asks；And the permitted highest of packing stage that the value interval of the negative pressure of confined space is limited in cooking equipment can specifically be born Pressure can damage culinary art hereinafter, while then realizing effective limitation to the value interval of negative pressure to avoid excessive due to negative pressure The self-operating function of equipment and the culinary art effect for influencing food materials.

In any of the above-described technical solution, it is preferable that the cooking equipment further includes for detecting in the confined space Negative pressure and opened according to the second pressure that the negative pressure in the confined space generates the second open signal or the second cut-off signal It closes；And the cooking control method specifically includes: when determining that the cooking equipment enters the packing stage, according to described First pressure switch is opened whenever the negative pressure in the confined space is less than or equal to described first generated when third presets negative pressure Messenger controls the air extractor work and is taking out negative pressure state, and switched according to the second pressure whenever the confined air Interior negative pressure is greater than or equal to second cut-off signal generated when four default negative pressure and controls the air extractor work Stopping pumping state；Or when determining that the cooking equipment enters the packing stage, switched according to the second pressure Institute is controlled whenever the negative pressure in the confined space is less than or equal to second open signal generated when third presets negative pressure It states air extractor work and is taking out negative pressure state, and according to first pressure switch whenever the negative pressure in the confined space is big First cut-off signal generated when four default negative pressure, which controls the air extractor work, to be stopped being evacuated shape State；Wherein, the 4th default negative pressure is greater than the default negative pressure of the third.

In the technical scheme, when cooking equipment is in packing stage, it can be switched by first pressure and second presses Power switch realizes that the upper limit value to the value interval of the negative pressure in confined space, lower limit value accurately define, i.e., whenever confined air When interior negative pressure occurs being less than or equal to the case where third presets negative pressure, by according to a correspondence in two pressure switches The open signal control air extractor work of generation increases the negative pressure in confined space taking out negative pressure state, further whenever close When the negative pressure closed in space increases to the case where appearance is greater than or equal to four default negative pressure, by according in two pressure switches Another correspond to generate cut-off signal control air extractor work stop pumping state come by way of being depressured naturally Reduce confined space in negative pressure, at this time due in cooking equipment itself gas leakage, interior pot moisture evaporation etc. factors will lead to it is close The negative pressure for closing space is gradually reduced, and repeatedly, the negative pressure in packing stage in confined space is limited to third and presets negative pressure And the 4th between default negative pressure, improves the accuracy to the vacuum cavitations in the confined space of cooking equipment.

In any of the above-described technical solution, it is preferable that whether the determination cooking equipment enters packing stage, packet It includes: determining whether the first pressure switch or second pressure switch detect that the negative pressure in the confined space is big for the first time Negative pressure is preset in the third；If so, determining that the cooking equipment enters the packing stage, the cooking equipment is otherwise determined The packing stage is not entered；It is minimum in packing stage described in the negative pressure in the confined space that the third, which presets negative pressure, Negative pressure and the 4th default negative pressure are highest negative pressure of the negative pressure in the packing stage in the confined space.

In the technical scheme, cooking equipment is switched with first pressure or second pressure switch detects confined space for the first time Interior negative pressure is greater than when third presets negative pressure and enters packing stage for starting point, big to the negative pressure of packing stage to meet cooking equipment Small demand；And specifically the value interval of the negative pressure of confined space can be limited in cooking equipment packing stage it is permitted More than minimum negative pressure and highest negative pressure is hereinafter, so while realizing effective limitation to the value interval of negative pressure, can keep away Exempt to be unable to satisfy culinary art demand since negative pressure is too small and then influence the culinary art effects of food materials, and avoid since negative pressure is excessive and It damages the self-operating function of cooking equipment and influences the culinary art effect of food materials.

In any of the above-described technical solution, it is preferable that the cooking control method further include: when determining the cooking equipment When duration in the packing stage reaches default pressure maintaining duration, controls the cooking equipment and exit the packing stage And it controls the air extractor and terminates the air extracted in the confined space.

In the technical scheme, the duration that can be in packing stage to cooking equipment is monitored, so that at it Packing stage can be exited in time when the duration of packing stage reaches default pressure maintaining duration and terminate pumping, pressure maintaining is imitated Fruit controls best.

In any of the above-described technical solution, it is preferable that the cooking control method further include: when the cooking equipment exits When the packing stage, the exhaust apparatus for controlling the cooking equipment switches to opening state by closed state, so that described close It closes to be connected between space and external environment and be exhausted.

It in the technical scheme, can be with after the duration that cooking equipment is in packing stage reaches default pressure maintaining duration The exhaust apparatus for controlling cooking equipment is opened, and is connected to confined space with external environment, so that the air in external environment passes through Exhaust apparatus enters in confined space, so that confined space is gradually brought to normal pressure state by negative pressure state, so that culinary art Equipment can continue to execute subsequent cooking process, and convenient for ensureing that user opens the operational safety of upper cover.

Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description Obviously, or practice through the invention is recognized.

Detailed description of the invention

Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:

Fig. 1 shows the structural schematic diagram of the cooking equipment of the embodiment of the present invention；

Fig. 2 shows the cross-sectional views of cooking equipment shown in FIG. 1；

Fig. 3 shows one of the structural schematic diagram of inner cover of cooking equipment shown in FIG. 1；

Fig. 4 shows the curve synoptic diagram that the negative pressure in the confined space of first embodiment of the invention changes over time；

Fig. 5 shows the curve synoptic diagram that the negative pressure in the confined space of second embodiment of the invention changes over time；

Fig. 6 shows the curve synoptic diagram that the negative pressure in the confined space of third embodiment of the invention changes over time；

Fig. 7 shows the curve synoptic diagram that the negative pressure in the confined space of fourth embodiment of the invention changes over time；

Fig. 8 shows the second structural representation of the inner cover of cooking equipment shown in FIG. 1；

Fig. 9 shows the curve synoptic diagram that the negative pressure in the confined space of fifth embodiment of the invention changes over time；

Figure 10 shows the curve synoptic diagram that the negative pressure in the confined space of sixth embodiment of the invention changes over time；

Figure 11 shows the flow diagram of the cooking control method of the embodiment of the present invention.

Wherein, the corresponding relationship between appended drawing reference and component names of the Fig. 1 into Fig. 3, Fig. 8 are as follows:

10 pot bodys, pot, 30 upper covers, 302 covers, 304 inner covers, 306 cover boards, 40 confined spaces, 50 air extractors, 60 in 20 First pressure switch, 70 second pressures switch, 80 exhaust apparatus, 90 bleeding points, 100 switching devices, 110 exhaust tubes, 120 heating Device.

Specific embodiment

To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

Cooking equipment of the invention is described in detail below with reference to Fig. 1 to Figure 10.

As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 8, the cooking equipment of embodiment according to the present invention, comprising: pot body 10, interior pot 20, upper cover 30, air extractor 50, first pressure switch 60 and controller (not shown).

Wherein, the interior pot 20 is arranged in the pot body 10；The upper cover 30 is covered in the pot body 10, and with institute It states interior pot 20 and cooperatively forms confined space 40；The air extractor 50 is arranged in the upper cover 30, described closed for extracting Air in space 40 is to form negative pressure；The first pressure switch 60 is arranged in the upper cover 30, described close for detecting The negative pressure in space 40 is closed, and the first open signal or the first cut-off signal are generated according to the negative pressure in the confined space 40； The air extractor 50 and the first pressure switch 60 are electrically connected to the controller, and the controller described for cooking When equipment of preparing food is in packing stage, according to first open signal control the air extractor 50 work take out negative pressure state or The work of air extractor 50, which is controlled, according to first cut-off signal is stopping pumping state.

In this embodiment, upper cover 30 is extracted by the air extractor 50 being arranged in upper cover 30 and interior pot 20 cooperates shape At confined space 40 in air, so as to form negative pressure in the confined space 40 of cooking equipment, and then by being arranged in upper cover First pressure switch 60 in 30 detects the negative pressure in confined space 40, and the first pressure switch 60 is close according to detecting The vacuum magnitude closed in space 40 generates corresponding trigger signal, i.e. the first open signal or the first cut-off signal, then works as culinary art When equipment is in packing stage, controller receives the first open signal or the first disconnection letter of the first pressure switch 60 generation The working condition of adjustment air extractor 50 can be controlled after number, correspondingly to guarantee that cooking equipment is negative needed for packing stage Pressure, and then the tasty effect of food materials is improved by good effective vacuum cavitations function or realizes the fresh-keeping effect to food materials Deng specifically, when the trigger signal that first pressure switch 60 generates exists to control the work of air extractor 50 when the first open signal The air in confined space 40 is extracted to increase the pumping negative pressure state of negative pressure, and when the trigger signal of the generation of first pressure switch 60 It is evacuated state to control the stopping that negative pressure of the work of air extractor 50 in confined space 40 is depressured naturally when the first cut-off signal, In this way, the culinary art effect of cooking equipment can be effectively improved, the culinary art experience of user is promoted, while air extractor can be reduced 50 run generated power consumption；Moreover, compared to pressure is used for the negative pressure used in pressure sensor detection confined space 40 The cost of power switch is lower, and then can effectively reduce the production cost of cooking equipment.

Further, in the above-described embodiments, the cooking equipment further include: timer (not shown), and it is described Controller electrical connection, the duration for being in the packing stage for counting the cooking equipment；And the controller is also For: when the duration of timer statistics reaches default pressure maintaining duration, controls the cooking equipment and exit institute It states packing stage and controls the air extractor 50 and terminate the air extracted in the confined space 40.

In this embodiment it is possible to which the duration of packing stage is in cooking equipment by the timer of cooking equipment It is monitored, packing stage can be exited in time simultaneously when the duration of packing stage reaches default pressure maintaining duration to be at Pumping is terminated, pressure holding effect is controlled best.

Further, in the above-described embodiments, as shown in figures 3 and 8, the cooking equipment further include: exhaust apparatus 80, Setting is electrically connected in the upper cover 30, and with the controller, and when the cooking equipment is in the packing stage The exhaust apparatus 80 work exhaust apparatus 80 in off position and when the cooking equipment exits the packing stage Work is in opening state.

In this embodiment, it is additionally provided with exhaust apparatus 80 in the upper cover 30 of cooking equipment, when cooking equipment is in pressure maintaining Completely cut off the work of exhaust apparatus 80 by the confined space of cooking equipment 40 and external environment in off position, guarantees to cook The negative pressure demand prepared food, and after cooking equipment has realized corresponding vacuum cavitations function and exits packing stage exhaust can fill It sets 80 work to be connected to confined space 40 with external environment in opening state, the air in external environment is made to pass through exhaust apparatus 80 enter in confined space 40, so that confined space 40 is gradually brought to normal pressure state by negative pressure state, to make to cook Equipment can continue to execute subsequent cooking process, and convenient for ensureing that user opens the operational safety of upper cover 30.

Wherein, the exhaust apparatus 80 preferably includes exhaust valve.

Further, in the above-described embodiments, shown in as shown in Figure 1, Figure 2, Fig. 3 and Fig. 8, the upper cover 30 includes setting gradually Cover 302, inner cover 304 and cover board 306, wherein the inner cover 304 is connected to the pot body 10, the cover board 306 with it is described Interior pot 20 cooperatively forms and is provided with bleeding point 90 on the confined space 40 and the cover board 306, sets in the inner cover 304 It is equipped with switching device 100 and exhaust tube 110, the exhaust tube 110 is for being sequentially connected the air extractor 50, switch dress 100 and the bleeding point 90 are set, the switching device 100 is electrically connected with the controller, for controlling the confined space 40 With the on-off between the air extractor 50.

In this embodiment, upper cover 30 is connected by its inner cover 304 with pot body 10, and be located in pot body 10 in upper cover 30 When upper, confined space 40 was cooperatively formed by its cover board 306 and interior pot 20, and the cover board 306 will be obstructed effectively and cooked The vapor generated in the process destroys operating circuit therein to prevent water steam from entering upper cover 30；It further can also be Bleeding point 90 is set on cover board 306, be connected to air extractor 50 with confined space 40 by bleeding point 90, while being filled in pumping Setting switching device 100 between 50 and confined space 40 is set, and when air extractor 50 is in and takes out negative pressure state, control switch dress Setting 100 openings is connected to air extractor 50 with confined space 40, to guarantee that air extractor 50 can smoothly extract confined space Air in 40, and air extractor 50 be in stop pumping state when, control switch device 100 closing make air extractor 50 with Confined space 40 completely cuts off, and accelerates confined air to prevent the air in external environment from entering in confined space 40 by bleeding point 90 Between in 40 negative pressure reduction, while in order to guarantee flexibility that air extractor 50 and switching device 100 are installed, and guarantee close The air closed in space 40 can smoothly be discharged, and air extractor 50, switching device 100 and bleeding point 90 can be passed through pumping Pipe 110 is sequentially connected, to form complete extract system.

Further, in the above-described embodiments, the switching device 100 includes solenoid valve, then when the solenoid valve powers off When close and opened when the solenoid valves；Or the switching device 100 can also include check valve, then when the list The air extraction by the confined space 40 to the air extractor 50 is realized when opening to valve and is formed negative pressure and is worked as the list Stop pumping when closing to valve.

Further, in the above-described embodiments, the air extractor 50 includes vacuum pump.

Further, in the above-described embodiments, as shown in Fig. 2, the cooking equipment further include: heating device 120, setting In the pot body 10, for being heated to the interior pot 20.

Specifically, the heating device 120 can be set in the bottom of the pot body 10, and exit guarantor in cooking equipment After the pressure stage, the interior pot 20 is heated, to complete other subsequent cooking process, wherein the heating device 120 includes Electromagnetic heating coil etc..

Further, in the above-described embodiments, for the work according to the vacuum cavitations air extractor 50 in confined space 40 Make the scheme of state, can specifically execute as following three specific embodiment: