阅读说明：本技术 蒸汽烹饪设备的控制方法及装置、介质 (Control method and device of steam cooking equipment and medium ) 是由 韩照华 王涛 郑健 郑磊 于 2021-08-31 设计创作，主要内容包括：本发明涉及厨电设备技术领域,具体提供了一种蒸汽烹饪设备的控制方法、控制装置、计算机可读存储介质,所述蒸汽烹饪设备包括：烹饪主体,其形成有烹饪腔室；蒸汽发生器,其形成有蒸汽发生室,所述蒸汽发生室包括能够连通的第一腔室和第二腔室；以及喷射部,其包括喷头,产自所述内的第二品质的蒸汽能够经所述喷头发放至所述烹饪腔室,所述控制方法包括：在所述烹饪程序的第一/第二期间,使所述第一/第二腔室的蒸汽发放至所述烹饪腔室；其中,所述第一期间和/或所述第二期间的时长是根据所述烹饪腔室内的蒸汽的温度来确定的。通过这样的设置,在品质更丰富的蒸汽能够被获得的前提下,能够对期间的时长进行调整,从而优化了烹饪性能。(The invention relates to the technical field of kitchen electrical equipment, and particularly provides a control method, a control device and a computer readable storage medium of steam cooking equipment, wherein the steam cooking equipment comprises: a cooking body formed with a cooking chamber; a steam generator formed with a steam generating chamber including a first chamber and a second chamber that can communicate; and a spray portion including a head through which steam of a second quality produced from the interior can be dispensed to the cooking chamber, the control method including: during a first/second period of the cooking program, allowing steam of the first/second chamber to be released to the cooking chamber; wherein the duration of the first period and/or the second period is determined according to the temperature of steam within the cooking chamber. Through such an arrangement, the duration of the period can be adjusted on the premise that steam with richer quality can be obtained, thereby optimizing cooking performance.)

1. A control method of a steam cooking apparatus, characterized in that the steam cooking apparatus comprises:

a cooking body formed with a cooking chamber in which food materials to be cooked can be contained;

a steam generator including a generator body formed with a steam generating chamber including a first chamber and a second chamber that can communicate, the steam generating chamber being capable of dispensing a first quality of steam produced from the first chamber and/or a second quality of steam produced from the second chamber to the cooking chamber; and

a spray part disposed on the cooking body, the spray part including a spray head through which the second quality steam generated from the second chamber can be discharged into the cooking chamber;

the steam cooking apparatus is configured with a cooking program, and the control method includes:

during a first period of the cooking program, dispensing a first quality of steam from the first chamber to the cooking chamber; and/or

During a second period of the cooking program, enabling the spray head to distribute the second-quality steam of the second chamber to the cooking chamber through the spray head in a preset mode;

wherein the duration of at least a portion of the first period and/or the second period is determined in accordance with the temperature of steam at a set location within the cooking chamber.

2. The control method according to claim 1, wherein the set position within the cooking chamber is determined according to an attribute of the food material to be cooked.

3. The control method of claim 2, wherein the set position within the cooking chamber is a preset fixed position.

4. The control method according to any one of claims 1 to 3, wherein the "the period of at least a part of the first period and/or the second period is determined according to the temperature of steam at a set position in the cooking chamber" includes:

determining initial time according to the temperature of the steam at the set position in the cooking chamber;

and determining a preliminary time length as the time length of at least one part of the corresponding first period and/or the second period under the condition that the preliminary time length is greater than or equal to a set time length.

5. The method of claim 1, wherein the spray head has a plurality of steam dispensing angles, and the predetermined manner comprises:

the spray head is set to one or more of the plurality of steam dispensing angles.

6. The control method according to claim 1, wherein the steam generator is provided with a steam emitting port at least at a side facing the cooking chamber at a position corresponding to the second chamber,

correspondingly, the cooking chamber is provided with a steam inlet which can be directly butted with the steam outlet at the position corresponding to the steam outlet,

such that at least a portion of the steam produced in the second chamber is dispensed as a direct spray into the cooking chamber.

7. The control method according to claim 1, wherein the generator main body includes a partition member that partitions the steam generation chamber into a first chamber and a second chamber,

wherein the partition member has a communication structure thereon, and the first chamber is communicable with the second chamber through the communication structure.

8. A computer-readable storage medium, characterized in that the storage medium is adapted to store a plurality of program codes adapted to be loaded and run by a processor to perform the control method of the steam cooking apparatus of any one of claims 1 to 7.

9. A control device, characterized in that it comprises a memory and a processor, said memory being adapted to store a plurality of program codes, said program codes being adapted to be loaded and run by said processor to perform the control method of the steam cooking apparatus of any one of claims 1 to 7.

10. A control device characterized in that it comprises a control module configured to execute the control method of the steam cooking apparatus of any one of claims 1 to 7.

Technical Field

The invention relates to the technical field of kitchen electrical equipment, in particular to a control method and a control device of steam cooking equipment and a computer readable storage medium.

Background

The steam box is used as kitchen electrical equipment, and the main principle is that the pure steaming function is realized through high-temperature steam which is continuously provided, so that the cooking of food materials is completed. Compared with other electric cooking appliances such as an oven and a microwave oven, the steam box can better retain the nutrient components of food materials, so that the steam box is favored by consumers.

In order to ensure the achievement of cooking, there is a need for a steam box that provides steaming at a higher temperature and thus a higher cooking temperature. In order to meet the demand of higher cooking temperature, the following method is often adopted: the method is characterized in that a component for generating heat is additionally arranged in the steam box, such as a heating pipe is introduced to carry out auxiliary heating, and the heat is directly supplied to the inner container of the steam box so as to improve the cooking temperature, for example, the highest cooking temperature of the steam box is 100 ℃ in a normal state, so that the inner container of the steam box can obtain high-temperature steam of 120 ℃. However, the way of adding additional parts has such drawbacks: the manner in which the components are added internally reduces the effective volume of the steam box and thus affects the scale to which the steam box is applicable to some extent. In addition, the mode of directly carrying out auxiliary heating to the steam that gets into the inner bag often appears like phenomenon such as overdrying, burnt etc. along with food surface, and this can obviously influence the taste of food thereby reduce the user experience of steam ager. Accordingly, how to make the steam be better distributed to the steam box under the premise that higher cooking temperature can be obtained also becomes a problem accompanied with the space improvement.

Accordingly, there is a need in the art for a new solution to the above problems.

Disclosure of Invention

Technical problem

The present invention is proposed to solve the above problems in the prior art, i.e. to solve the technical problem that the performance (e.g. application scale, user experience) of the cooking device is affected in order to meet higher cooking temperature of the existing steam cooking device using a steam generator as a heat source, and how to better distribute steam to a steam box.

Technical scheme

A first aspect of the present invention provides a control method of a steam cooking apparatus including: a cooking body formed with a cooking chamber in which food materials to be cooked can be contained; a steam generator including a generator body formed with a steam generating chamber including a first chamber and a second chamber that can communicate, the steam generating chamber being capable of dispensing a first quality of steam produced from the first chamber and/or a second quality of steam produced from the second chamber to the cooking chamber; and a spray part disposed on the cooking body, the spray part including a spray head through which the second quality steam generated from the second chamber can be distributed to the cooking chamber; the steam cooking apparatus is configured with a cooking program, and the control method includes: during a first period of the cooking program, dispensing a first quality of steam from the first chamber to the cooking chamber; and/or during a second period of the cooking program, causing the spray head to deliver a second quality of steam from the second chamber to the cooking chamber through the spray head in a predetermined manner; wherein the duration of at least a portion of the first period and/or the second period is determined in accordance with the temperature of steam at a set location within the cooking chamber.

By means of the arrangement, the steam generator can be used for sending steam with higher temperature to the cooking equipment (such as an inner container of the steam box) through the second chamber, namely the cooking equipment can obtain higher cooking temperature.

Specifically, by configuring the steam generating chamber as a first chamber and a second chamber that can communicate with each other, a steam generating agent (e.g., water) first enters the first chamber and is converted into steam to obtain steam with a higher temperature. On the basis, the steam with higher temperature is sent to the second chamber to be further heated and finally sent to the cooking chamber through the steam sending port. Thus, because the temperature of the steam is increased before entering the cooking chamber, the phenomena of over-drying, scorching and the like on the surface of the food caused by the increase of the cooking temperature can be effectively avoided on the premise of meeting the requirement of higher cooking temperature.

It will be appreciated that the relationship of position, volume, shape, etc. between the two chambers may be chosen flexibly, e.g. the two chambers are arranged one above the other and have substantially the same volume and shape. It is obvious that the first and second chambers are both capable of emitting heat to the cooking chamber, and those skilled in the art can set the specific way of emitting heat to the first and second chambers in combination with a specific product, for example, by configuring the heating pipes for the two chambers respectively.

By determining the duration of at least part of the first and/or second periods in dependence on the detected temperature, the duration of the first and/or second periods can be adjusted for different cooking events, thereby seeking to further optimise cooking performance.

It should be noted that the first period and the second period are not strictly time-ordered, and should be understood to correspond to a period including the first quality of steam and a period including the second quality of steam.

It is understood that the combination of the dual-quality steam, the specific form of the preset pattern corresponding to the spray nozzle spraying, etc. can be flexibly determined by those skilled in the art according to actual requirements, such as: the distribution of steam containing two qualities or only one of them (e.g. superheated steam); the spray head is provided with a plurality of spray points, and the preset mode is that only one part of the spray points is used as an effective spray point; and the like.

In addition, it is understood that the specific representation form of the set position can be determined by those skilled in the art according to the actual situation, such as: including only one location, which may be near the center, near the wall, near a local location (e.g., a showerhead, etc.); or a plurality of positions, and the temperature of the set position is obtained according to the plurality of positions; and the like.

With regard to the control method of the steam cooking appliance described above, in one possible embodiment, the set position within the cooking chamber is determined according to the properties of the food material to be cooked.

With this arrangement, a specific form of determination of the set position is given.

Specifically, by customizing corresponding positions for different food materials to be cooked, corresponding cooking programs can be better customized for the current food materials to be cooked.

The set position referred to herein may be a position belonging to the food material, such as a surface of the food material or an interior of the food material, or may be a position outside the food material, such as a vicinity of the food material.

It is understood that a person skilled in the art can flexibly select a specific form of the attribute of the food material according to actual situations, for example, the attribute may include, but is not limited to, the type of the food material (e.g., meat, dishes, staple foods, etc.), the state of the food material before cooking (e.g., raw, half-cooked, cold-cooked, frozen-cooked, etc.), the amount of the food material (e.g., full dish, half dish, small amount, etc.), and the like.

With regard to the control method of the steam cooking appliance described above, in one possible embodiment, the set position within the cooking chamber is a preset fixed position.

By this arrangement, another specific form of determination of the set position is given.

With regard to the control method of the steam cooking apparatus described above, in one possible embodiment, the "the duration of at least a part of the first period and/or the second period is determined according to the temperature of steam at a set position in the cooking chamber" includes: determining initial time according to the temperature of the steam at the set position in the cooking chamber; and determining a preliminary time length as the time length of at least one part of the corresponding first period and/or the second period under the condition that the preliminary time length is greater than or equal to a set time length.

With such an arrangement, a manner of determining the duration of the first period and/or the second period is given.

Specifically, in the case where the temperature reaches the standard, if the time period is too short, the basic cooking requirement of the food material may not be satisfied. Therefore, by introducing the 'set duration' as the bottom limit, the cooking effect of the food material to be cooked can be better ensured on the premise of realizing customization.

It is understood that a person skilled in the art can determine the quantization range of the set time length and configure the stage of the set time length according to actual conditions. Such as may be: the quantization range is determined based on experimental, analytical, empirical data, and the like; the set duration is given only for certain relatively important phases, while other phases are determined only with reference to the detected actual temperature.

With regard to the control method of the steam cooking device, in one possible embodiment, the spray head has a plurality of steam distribution angles, and the preset manner includes: the spray head is set to one or more of the plurality of steam dispensing angles.

With this arrangement, a particular form of the second quality of steam delivered by the spray head is given.

It will be appreciated that the specific orientation of the steam dispensing angles and the specific number of steam dispensing angles can be determined by one skilled in the art based on actual requirements. Such as may be: taking a direct injection direction of the spray head (for example, the spray head can be regarded as a mass point, and a connecting line between the mass point and a certain fixed point of a cooking chamber (for example, a midpoint of a shelf for placing food materials and the like) is regarded as a direct injection direction) as a rotating shaft, taking one oblique line as a generatrix to form a conical surface, and any generatrix on the conical surface can correspond to a steam distribution angle; and the like.

With regard to the control method of the steam cooking appliance described above, in a possible embodiment, the steam generator is provided with a steam emitting port at least at a side portion facing the cooking chamber in a position corresponding to the second chamber, and accordingly, the cooking chamber is provided with a steam inlet port capable of directly interfacing with the steam emitting port in a position corresponding to the steam emitting port, so that at least a part of the steam generated in the second chamber is emitted to the cooking chamber in a direct injection manner.

By this arrangement, a particular form of the second chamber dispensing a second quality of steam to the cooking chamber by means of the spray head is given.

This is done because: on the one hand, steam at higher temperatures is generally more difficult to obtain; on the other hand, steam with a higher temperature tends to affect the cooking effect more significantly in the case of heat loss. In other words, the higher temperature steam has a more significant effect or impact on the food material to be cooked during the dispensing process, and thus can more significantly promote or influence the cooking process of the food material to be cooked. Therefore, by guiding the distribution of the part of the steam, the cooking effect of the food material to be cooked can be more obviously adjusted.

With regard to the control method of the steam cooking apparatus described above, in one possible embodiment, the generator main body includes a partition member that partitions the steam generation chamber into a first chamber and a second chamber, wherein the partition member has a communication structure thereon, and the first chamber is capable of communicating with the second chamber through the communication structure.

By such an arrangement, a specific manner of forming the first and second chambers and the manner of communication between the two chambers is given.

It will be appreciated that the particular configuration of the partition means and its arrangement within the steam generating chamber may be varied according to the circumstances of the skilled person. Such as the partition member being of a simple plate-like structure or the like.

It is to be understood that the communicating structure may be a structure that is continuously communicated (continuously in a communicating state), or may be a structure that is selectively communicated (may be directly switched between a communicating state and a non-communicating state). In this way, at least in the case where the communicating structure is in the communicating state, the liquid in the vapor generated by the first chamber is blocked from reaching the second chamber.

Taking the continuous communication structure as an example, a person skilled in the art can select a specific form of the continuous communication structure according to actual conditions. Such as a plurality of communication holes provided in the partition member. Obviously, the number, shape, distribution density of the communication holes on the partition member, and the like may be determined according to the actual situation. As an example, a plurality of communication holes and the like having the same hole diameter are uniformly distributed on the partition member. In this case, a gas-liquid separation member may be provided in the steam generation chamber having two chambers, so that a small amount of condensate contained in the steam can be recovered.

A second aspect of the present invention provides a computer readable storage medium adapted to store a plurality of program codes adapted to be loaded and executed by a processor to perform the control method of the steam cooking apparatus of any one of the preceding claims.

It is understood that the computer readable storage medium has all the technical effects of the control method of the steam cooking apparatus of any one of the preceding claims, and will not be described herein again.

It will be understood by those skilled in the art that all or part of the flow of the control method of the steam cooking device according to the present invention may be implemented by a computer program, which may be stored in a computer-readable storage medium, and which, when executed by a processor, may implement the steps of the above-described method embodiments. Wherein the computer program comprises computer program code, it is understood that the program code comprises, but is not limited to, program code for performing the control method of the steam cooking apparatus described above. For convenience of explanation, only portions relevant to the present invention are shown. The computer program code may be in source code form, object code form, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying said computer program code, media, usb disk, removable hard disk, magnetic diskette, optical disk, computer memory, read-only memory, random access memory, electrical carrier wave signals, telecommunication signals, software distribution media, etc. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.

A third aspect of the present invention provides a control device comprising a memory and a processor, the memory being adapted to store a plurality of program codes, the program codes being adapted to be loaded and run by the processor to perform a method of controlling a steam cooking apparatus as claimed in any one of the preceding claims.

It can be understood that the control device has all the technical effects of the control method of the steam cooking apparatus described in any one of the preceding claims, and will not be described herein again. The control device may be a control device apparatus formed including various electronic apparatuses.

A fourth aspect of the present invention provides a control apparatus including a control module configured to perform the control method of the steam cooking device of any one of the foregoing.

It can be understood that the control device has all the technical effects of the control method of the steam cooking apparatus described in any one of the preceding claims, and will not be described herein again.

In the description of the present invention, a "control module" may include hardware, software, or a combination of both. A module may comprise hardware circuitry, various suitable sensors, communication ports, memory, may comprise software components such as program code, or may be a combination of software and hardware. The processor may be a central processing unit, microprocessor, image processor, digital signal processor, or any other suitable processor. The processor has data and/or signal processing functionality. The processor may be implemented in software, hardware, or a combination thereof. Non-transitory computer readable storage media include any suitable medium that can store program code, such as magnetic disks, hard disks, optical disks, flash memory, read-only memory, random-access memory, and the like.

Further, it should be understood that, since the setting of the control module is only for explaining the functional units in the system corresponding to the control method of the steam cooking apparatus of the present invention, the physical device corresponding to the control module may be the processor itself, or a part of software, a part of hardware, or a part of a combination of software and hardware in the processor. Thus, the number of control modules is only exemplary. Those skilled in the art will appreciate that the control module may be adaptively split according to the actual situation. The specific splitting of the control module does not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solution after splitting will fall into the protection scope of the present invention.

Drawings

The present invention will be described below with reference to the accompanying drawings in conjunction with a steam cooking apparatus which is a steam box, set sprinklers (forms of fixed and movable portions of a setting structure, set first/second steam dispensing angle ranges, set structures for effecting angle switching, etc.) and a set period of time given for only a part of stages. In the drawings:

FIG. 1 shows a first schematic structural view of a steam box according to an embodiment of the invention;

FIG. 2 shows a second schematic (partial) view of the steam box of one embodiment of the present invention;

FIG. 3 shows a schematic structural view (explosion) of a guide in a steam box according to an embodiment of the present invention;

FIG. 4 is a schematic view illustrating a structure of a steam generator in a steam box according to an embodiment of the present invention;

FIG. 5 illustrates a schematic cross-sectional view of a steam generator in a steam box according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of portion A of FIG. 5 showing the partition member and the gas-liquid separation member; and

fig. 7 is a flowchart illustrating a control method of a steam box according to an embodiment of the present invention.

List of reference numerals:

100. steaming the box; 1. a cooking body; 2. a steam generator; 21. a first chamber; 211. a first heating pipe; 22. a second chamber; 221. a second heating pipe; 23. a partition member; 24. a gas-liquid separation member; 241. a mesh structure; 251. a first vapor emitting port; 252. a second vapor emitting port; 253. a water inlet; 254. a water outlet; 26. a mounting structure; 3. a spray head; 31. a fixed portion; 311. a nozzle body; 312. a valve seat; 3121. a first hole; 32. a movable portion; 321. a valve; 3211. a groove; 3222. a second hole; 4. a guide section; 41. a guide structure; 42. and (4) a ventilation structure.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of protection of the present invention and the like. Although the present embodiment is described with a steam cooking device as a steam box, the present invention is also applicable to other types of kitchen appliances that include a steam generator; in addition, although the present embodiment is described by taking a set spray head as an example, it is obvious that other forms of spray heads may be configured for the second chamber; furthermore, although the set time lengths are given for only part of the stages in the present embodiment, it is obvious that the corresponding set time lengths may be given for all the stages of the cooking program; and so on.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. And the singular forms "a", "an" and "the" may include the plural forms as well.

Furthermore, while numerous specific details are set forth in the following description in order to provide a better understanding of the invention, it will be apparent to those skilled in the art that the invention may be practiced without some of these specific details. In some instances, cooktop principles and the like well known to those skilled in the art have not been described in detail in order to highlight the subject matter of the invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 6, fig. 1 is a first schematic structural diagram of a steam box according to an embodiment of the present invention, fig. 2 is a second schematic structural diagram of the steam box according to the embodiment of the present invention, fig. 3 is a schematic structural diagram of a guide portion in the steam box according to the embodiment of the present invention, fig. 4 is a schematic structural diagram of a steam generator in the steam box according to the embodiment of the present invention, fig. 5 is a schematic sectional view of the steam generator in the steam box according to the embodiment of the present invention, and fig. 6 is an enlarged schematic view of a portion a in fig. 5. As shown in fig. 1 to 6, the steam box 100 mainly includes a cooking body 1, a steam generator 2 and a rotatable nozzle 3, the cooking body 1 is formed with a cooking chamber (such as a liner) for containing food materials, the steam generator 2 can distribute steam to the liner through the nozzle arranged in the liner, so that the food materials to be cooked contained in the liner are cooked in a pure steam manner through the steam, and the nozzle is rotatable so as to change attributes such as a distribution direction of the steam sprayed from the nozzle to a certain extent. Wherein, the steam generator includes a generator main body and a steam generating agent supply side, and the main function of the steam generator is to heat water as a steam generating agent to generate steam. A water vessel (e.g., a water supply tank) as a steam generating agent supply side is mainly used to supply water for generating steam to the generator main body. Thus, the steam generator can continuously deliver high-temperature steam to the cooking chamber during the use of the steam box.

According to the orientation in fig. 5, the generator body is formed with a steam generating chamber in which a partition member 23 is provided in a horizontal direction. In the present embodiment, the partition member is a plate-like structure, thereby partitioning the steam generation chamber into the lower first chamber 21 and the upper second chamber 22. Wherein a water inlet 253 is provided on a sidewall of a right side of the first chamber so as to supply water for generating steam to the first chamber by a water pump. Wherein, a first steam emitting port 251 is provided on the sidewall of the left side of the first chamber, and a second steam emitting port 252 is provided on the sidewall of the front side of the second chamber. In this embodiment, the partition member of the plate-shaped structure includes a partition main body and a plurality of vent holes as a communicating structure provided on the partition main body, thereby putting the two chambers in a state of continuous communication. In addition, the first chamber and the second chamber are respectively provided with a first heating pipe 211 and a second heating pipe 221 as heat sources thereof, and exemplarily, the first heating pipe is arranged outside the bottom wall of the first chamber, and the second heating pipe is disposed at a position of the second chamber close to the partition member. In this way, the lower first chamber can generate normal steam having substantially the same quality as that of the steam of the prior art, and in addition, the superheated steam having a higher temperature can be obtained by passing a part or all of the steam through the partition member to the upper second chamber and then further heating the steam.

The first steam emitting port 251 is connected to the inner container through a connecting pipeline, and is mainly used for emitting common steam to the inner container. The second steam release port 252 is directly connected to a steam inlet port of the inner container, so as to release superheated steam to the inner container by direct injection. In a specific embodiment, if the second steam releasing port 252 has an end portion connected to the inside of the inner container, the inner container is provided with the nozzle 3 at a position corresponding to the end portion, and the end portion and the nozzle (hereinafter, the nozzle main body 311) can be fixedly connected by a connection method (e.g., a screw connection in this example) such as a screw connection, an adhesive connection, etc. On the premise that direct injection is realized, the sealing performance of the connection is ensured to ensure the reliability of steam distribution, and a sealing ring can be arranged between the spray head and the end part.

Referring to fig. 3 and according to the orientation shown in fig. 3, the nozzle 3 includes a fixed portion 31 and a movable portion 32, the fixed portion 31 includes a nozzle body 311 and a valve seat 312 provided on an upper surface of the nozzle body 311 and formed integrally therewith, a first hole 3121 provided in the valve seat 312 in an axial direction of the nozzle body 311, the movable portion 32 includes a valve 321 accommodated in the valve seat 312 and rotatable therearound, a groove 3211 and a second hole 3212 coaxial with the first hole 3121 are provided in the valve 321, and the first hole and the second hole can be always kept in communication with each other along a groove length of the groove 3211 with rotation of the valve in the valve seat. And the wall of the groove 3211 is free to gradually converge to the right to the diameter of the second hole, which can generate a certain pressure increase effect on the steam reaching the second hole from the groove. Given that the range of rotation needs to be adjusted, the communication between the first and second orifices can be maintained by a corresponding structure, such as two grooves that may be perpendicular to each other (between planes perpendicular to the groove bottom that pass through the axis of the groove length direction), or the like. The valve 321 is provided with a guide portion 4 on a side away from the groove 3211. If the slot length is defined to be in a vertical plane during the installation stage, it is ensured that the first and second apertures are always in communication during rotation of the valve in the vertical plane within a certain range (e.g. + -30 deg.).

It is understood that the spraying range of the spray head defined by the above-mentioned slots is only a specific embodiment, and those skilled in the art can determine other structures capable of allowing the spray head to realize multi-directional spraying according to practical situations, such as: the groove is changed into a large round hole or other special-shaped structures, and the like.

With continued reference to fig. 3, in a specific example, the guide portion 4 includes two guide structures 41 stacked at equal intervals from left to right, the two guide structures from left to right have a tendency of approximately equal magnification, and the guide structure on the right side can completely cover the guide structure on the left side. The structure of the guiding structure 41 generally comprises a cambered portion capable of shielding the second hole 3211, the cambered portion surrounding a circumferential part of the valve (range of central angles from 2/3 pi to 3/2 pi, preferably pi in this embodiment), and a bottom side of the cambered portion being connected to or integrally formed with a surface of the valve. Preferably, the arc portion is provided with a ventilation structure 42, such as a ventilation structure comprising a plurality of ventilation holes uniformly distributed in the arc area. Obviously, a person skilled in the art can flexibly determine, for example, the number of the guiding structures, the distribution form (such as distribution area, distribution density, etc.) of the ventilation holes on the two arc-shaped portions, the specific radian of the arc-shaped portion, etc. according to the actual situation, and in addition, the guiding structures can also be replaced by other forms from the arc-shaped portions, such as a combination of the edge-shaped portions of the arc-shaped portions, etc.

A gas-liquid separation member 24 is provided above the partition member 23 so as to intercept the liquid part (moisture entrained in the steam) of the ordinary steam in the lower first chamber 21 before the ordinary steam is led to the upper second chamber 22, thereby ensuring that the steam sent to the second chamber 22 is pure gaseous steam as much as possible. Illustratively, the gas-liquid separating member 24 is also substantially a plate-like structure, such as a plate-like structure, on which a mesh structure 241 is provided at a position most corresponding to each of the air-permeable holes. Thus, when the steam flowing through the communication holes passes through the corresponding mesh structure, the liquid portion entrained in the steam is expected to be intercepted.

In addition, a drain 254 is provided as a water discharge structure on the bottom wall of the first chamber for discharging water generating steam and a liquid portion of the steam intercepted by the gas-liquid separating member in time. It is understood that the skilled person can select other water discharging structure configurations and specific arrangement positions according to actual conditions, on the premise of ensuring that water can be discharged in time.

In a specific embodiment, two mounting structures 26 are further provided on the first chamber, and in this embodiment, the mounting structures include a mounting plate of a substantially L-shaped configuration, through which the steam generator is fixed to the corresponding position of the cooking body 1. It is understood that the structural form and the specific arrangement position of the mounting structure can be flexibly set by those skilled in the art according to actual situations, or further: in the case where it is not necessary to establish a connection relationship with the cooking main body 1, the mounting structure may be omitted; the installation structure can be omitted under the condition that the connection relationship between the steam generator and the steam box can be established by the original structure of the steam generator; and the like.

It is understood that, under the basic concept that the steam generating chamber is partitioned into the first chamber and the second chamber by the partition member, a person skilled in the art can determine the specific structural forms constituting the first chamber and the second chamber according to actual situations, and configure the respective chambers with parameter construction conditions such as pressure necessary for each to perform its function.

In this way, water from the water supply tank first enters the first chamber below, where it is heated to steam of a higher temperature (referred to as normal steam) by the first heating pipe. Then, the steam is not released to the cooking chamber, but enters the second chamber above through the ventilation holes on the partition member, and after the normal steam is sent to the second chamber, the normal steam is further heated in the second chamber under the action of the second heating pipe so as to obtain steam with higher temperature (called superheated steam). Thus, the food material to be cooked in the inner container can obtain steam with higher temperature. Because the steam realizes the temperature increase in the second chamber before entering the cooking chamber, the phenomena of over-drying, scorching and the like on the surface of food caused by the increase of the cooking temperature are avoided while higher cooking temperature can be provided for the cooking chamber of the steam box.

It is understood that the first and second chambers may have steam emitting openings, and as in the present embodiment, the first and second chambers can respectively emit steam with different qualities (including at least temperature) to the inner container through the first and second steam emitting openings. Thus, the food materials to be cooked which are contained in the inner container can obtain steam with richer temperature configuration. If the inner container can obtain steam with at least two qualities corresponding to the first chamber and the second chamber, actually, the richness of the steam quality is realized because a mixture of the two kinds of steam can also be obtained. Under this prerequisite, through the setting of the changeable shower nozzle of steam issue angle, on steam generator had the ability of issuing the steam that the quality is abundanter, the steam of spraying to the edible material of waiting to cook can obtain the change of certain degree along with the position change of shower nozzle before granting, and the edible material of waiting to cook just can consequently obtain the changeable steam of attributes such as the direction of issuing to the performance of steam ager has been optimized.

Referring to fig. 7, fig. 7 is a flow chart illustrating a control method of the steam box according to an embodiment of the invention. As shown in fig. 7, the control method of the steam box based on the structure mainly comprises the following steps:

and S701, receiving a cooking instruction.

Such as cooking instructions, are generated based on a user request (e.g., key selection, etc.). The cooking mode corresponding to the cooking instruction comprises three stages, wherein the first stage requires the superheated steam from the second chamber to be distributed to the inner container in a first set orientation (horizontal direct injection), and the distribution time period is determined according to the detected temperature of the steam in the inner container (in the embodiment, the detected temperature is the fixed position of the inner container, such as the position close to the upper part of the inner container), but is not lower than the set time period (10 min); the second stage requires the superheated steam from the second chamber to be delivered to the inner container in an azimuthally adjustable manner (oscillating back and forth along the length direction of the tank) for a preset second period of time (25 min); the third stage requires that the normal steam from the first chamber and the superheated steam from the second chamber be dispensed in a combination in proportion to the direction of the interior and that the superheated steam from the second chamber be dispensed in a second orientation (30 ° obliquely upwards) for a period of time determined based on the sensed temperature of the steam within the interior.

The cooking mode is essentially the presentation of the cooking program. It can be seen that the third phase belongs to the first period of the cooking program and the first, second and third phases all belong to the second period of the cooking program. Wherein the durations of the first and third phases are determined according to the detected temperature, and only the constraint of the set duration is added to the first phase.

S703, in the first stage, the valve of the nozzle is rotated from the initial position to the horizontal direct injection position along the vertical plane, and only the second steam release port corresponding to the second chamber is allowed to release the superheated steam into the inner container, that is: the superheated steam is delivered to the inner container through the second holes of the spray head in a fixed orientation.

S705, when the detected temperature of the steam in the inner container reaches a preset first temperature (usually a certain value between 115 DEG and 135 DEG, such as 115 DEG), judging whether the time length of the first stage is shorter than a set time length (10min), if so, ending the first stage and switching to the second stage when the time length lasts for 10min, otherwise, directly ending the first stage and switching to the second stage.

And S707, in the second stage, the valve of the spray head is made to swing back and forth along the plane in the vertical direction within the range of +/-30 degrees defined by the groove length, and only the second steam distributing opening corresponding to the second chamber is allowed to distribute the superheated steam to the inner container, namely: the superheated steam is delivered to the inner container through the second hole of the nozzle in a variable orientation. And timing until the second stage is finished.

S709, in a third stage, on one hand, the first steam dispensing port corresponding to the first chamber dispenses the common steam to the inner container; on the other hand, the valve of the nozzle is rotated from the initial position to a position inclined upward by 30 ° along the vertical plane, and superheated steam is dispensed to the inner container corresponding to the second steam dispensing opening of the second chamber. Namely: during this phase, the food material to be cooked receives the mixed steam and the superheated steam is dispensed in a non-aligned manner.

And S711, judging whether the detected temperature of the steam in the inner container reaches a preset second temperature (usually a certain value between 80 and 120 degrees, such as 90 degrees), if not, continuing the step S709, if so, ending the third stage, and finishing the cooking of the food to be cooked.

It can be seen that in the inventive control method, the cooking process of the food material to be cooked contained in the inner container is completed by the cooperation of the normal steam generated from the first chamber and the superheated steam generated from the second chamber. Moreover, by setting the steam distribution directions of the spray head differently, the distribution directions of the superheated steam are different, so that the cooking process of the food to be cooked contained in the inner container can be optimized to a certain extent. Meanwhile, the cooking program can be customized to a certain extent by adjusting the temperature of the steam in the inner container based on detection on the staged duration of the part, so that the use performance of the steam box is further optimized.

It should be noted that, although the foregoing embodiments describe each step in a specific sequence, those skilled in the art may understand that, in order to achieve the effect of the present invention, different steps do not have to be executed in such a sequence, and may be executed simultaneously or in other sequences, and some steps may be added, replaced or omitted, and these changes are within the protection scope of the present invention. Such as the third stage may be omitted.

It should be noted that, although the control method configured in the above-described specific manner is described as an example, those skilled in the art will appreciate that the present invention should not be limited thereto. In fact, the user can flexibly adjust the relevant steps and the parameters and other elements in the steps according to the situations such as actual application scenes, and the like, for example, constraints on the duration can be respectively added to the three stages.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.