Cooking utensil

Abstract

The utility model provides a cooking utensil. The cooking utensil comprises a pot body, a cover body, a gas circuit structure and a photoelectric display assembly. The cooker body comprises a cooker container used for containing food materials and a heating device. The cover body is arranged on the cooker body in an opening and closing mode so that a cooking space can be formed between the cover body and the cooker container. The cover body is provided with an inner ventilation opening used for being communicated with the cooking space. And the gas path structure is communicated with the inner vent. The air path structure changes the pressure in the cooking space by exhausting or blowing the cooking space. The photoelectric display assembly is arranged outside the cooking utensil. The photoelectric display assembly is provided with a ventilation chamber or a ventilation chamber is formed between the photoelectric display assembly and the cover body. The vent chamber is in communication with the gas path structure. The photoelectric display assembly comprises an indicating lamp and is arranged to display the pressure intensity change in the cooking space through the light emitting state of the indicating lamp. The pressure intensity change in the cooking space is displayed through the photoelectric display assembly, and the user experience can be improved.

Description

Technical Field

[0001] The present application generally relates to the technical field of cooking appliances, and more particularly to a cooking appliance. Background Art

[0002] In order to improve the cooking effect of the rice cooker, there is a related art in which the rice cooker is provided with an exhaust port opening and closing device and an airflow reversing device to work synchronously, so that the cooking space has a state of lower or higher air pressure than the outside air pressure during the cooking process, which can improve the taste of the rice. However, it is difficult for the user to sense or experience the process of pressure change in the cooking space, and it is impossible to monitor it sensorily.

[0003] Therefore, it is necessary to provide a cooking appliance to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of this application does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, the present application provides a cooking utensil, the cooking utensil comprising:

[0006] A pot body, the pot body comprising a pot body for containing food and a heating device;

[0007] A cover body, the cover body can be opened and closed on the pot body to form a cooking space between the cover body and the pot body, and the cover body is provided with an inner vent for communicating with the cooking space;

[0008] an air path structure, the air path structure being in communication with the inner vent, the air path structure changing the pressure in the cooking space by exhausting or blowing air into the cooking space; and

[0009] A photoelectric display component, wherein the photoelectric display component is arranged on the outside of the cooking appliance, the photoelectric display component has a ventilation chamber or a ventilation chamber is formed between the photoelectric display component and the cover body, the ventilation chamber is connected to the air path structure, the photoelectric display component includes an indicator light, and the photoelectric display component is configured to display the pressure change in the cooking space through the light state of the indicator light.

[0010] According to the cooking utensil of the present application, a photoelectric display component is added to the cover body, and the ventilation chamber of the photoelectric display component is connected to the air path structure. When the air path structure draws air or blows air into the cooking space, the airflow passes through the ventilation chamber, and the pressure change in the cooking space is displayed by the change in the light state of the indicator light, which makes it convenient for the user to sensory feel or experience the process of pressure change in the cooking space, and the user can sensory monitor the pressure change in the cooking space, which helps to improve the user experience.

[0011] Optionally, the optoelectronic display assembly includes:

[0012] a magnetic member, the magnetic member having an N pole and an S pole with different magnetic properties, the magnetic member being rotatably connected to the cooking device around a rotation axis, the rotation axis being located between the N pole and the S pole, the magnetic member being configured to rotate in response to a pressure change in the cooking space;

[0013] A power generation coil is arranged outside the magnetic member in the circumferential direction, and two ends of the power generation coil are electrically connected to the indicator light to form a conductive loop.

[0014] According to the present application, the indicator light is arranged on the side of the ventilation chamber facing the outside so as to be observed. When the magnetic member rotates in response to the pressure change in the cooking space, the generator coil generates current, thereby changing the light state of the indicator light. The user can understand the pressure change in the cooking space by observing the light state of the indicator light.

[0015] Optionally, the optoelectronic display assembly further includes:

[0016] An impeller is located in the ventilation chamber, the impeller is rotatably connected to the cooking utensil around a rotation axis, the impeller is transmission-connected to the magnetic member, and the impeller is configured to rotate in response to pressure changes in the cooking space to drive the magnetic member to rotate.

[0017] According to the present application, by arranging the impeller in the ventilation chamber, when the air path structure draws air or blows air into the cooking space, the airflow passes through the ventilation chamber and drives the impeller to rotate around the rotation axis. When the impeller rotates accordingly in response to the pressure change in the cooking space, the magnetic part rotates accordingly, thereby changing the light state of the indicator light, making it convenient for the user to directly observe the light state of the indicator light from the outside, and then understand the pressure change in the cooking space through the light state of the indicator light.

[0018] Optionally, the optoelectronic display component also includes a rotating shaft, which is rotatably arranged on the cooking utensil around its own axis, one end of the rotating shaft is located in the ventilation chamber, and the other end of the rotating shaft extends to the side of the ventilation chamber facing the outside world, and the rotating shaft is fixedly connected to the magnetic part and the impeller.

[0019] According to the present application, the optoelectronic display assembly has a rotating shaft that can rotate around its own axis relative to the cooking utensil, and the two ends of the rotating shaft are respectively fixed with a magnetic member and an impeller. Therefore, when the impeller rotates in response to the pressure change in the cooking space, the impeller can rotate with the magnetic member through the rotating shaft, so that the generator coil generates current, thereby changing the light state of the indicator light, so that the user can understand the pressure change in the cooking space according to the light state of the indicator light observed from the outside.

[0020] Optionally, the magnetic member and the power generation coil are both arranged in the ventilation chamber, the magnetic member is rotatably connected to the cooking utensil around a rotation axis, and the magnetic member is configured to rotate accordingly in response to pressure changes in the cooking space.

[0021] According to the present application, by arranging both the magnetic member and the power generation coil in the ventilation chamber, the magnetic member can rotate around the rotation axis. Therefore, when the magnetic member rotates in response to the pressure change in the cooking space, the power generation coil can generate current, thereby changing the light state of the indicator light, and then the user can understand the pressure change in the cooking space according to the light state of the indicator light observed from the outside.

[0022] Optionally, the indicator light includes two light emitting diodes, which are connected in parallel at two ends of the generating coil, and the conduction directions of the two light emitting diodes are opposite, so that the two light emitting diodes do not emit light at the same time.

[0023] According to the present application, two LEDs are provided, and the conduction directions of the two LEDs are opposite. Thus, on the one hand, the pressure change in the cooking space can be intuitively understood through the two LEDs, and on the other hand, if one of the two LEDs is damaged, the other will not be affected, which is also helpful for troubleshooting.

[0024] Optionally, the cover body comprises a surface cover and a lining cover, and the surface cover is located on a side of the lining cover away from the pot body;

[0025] The optoelectronic display assembly also includes a vent seat, which is located between the face cover and the lining cover, and is connected to the face cover, so that the vent seat and the face cover enclose the vent chamber; the cooking utensil also includes a vent seat seal, which is connected between the vent seat and the face cover to seal the gap between the vent seat and the face cover.

[0026] According to the present application, by arranging the vent seat of the optoelectronic display assembly between the face cover and the lining cover, and connecting the vent seat to the face cover, a vent chamber is formed between the vent seat and the face cover, that is, a vent chamber is formed between the optoelectronic display assembly and the face cover. This helps to improve the structural compactness between the optoelectronic display assembly and the cover body, and improves the space utilization of the cover body. Moreover, by arranging a vent seat seal between the vent seat and the face cover to improve the sealing between the vent seat and the face cover, good air tightness is ensured, thereby improving the sensitivity and accuracy of the optoelectronic display assembly.

[0027] Optionally, the ventilation seat includes two ventilation interfaces, which are connected to the ventilation chamber and the air path structure, and the two ventilation interfaces are relatively arranged on both sides of the rotation axis along the third direction. The two ventilation interfaces are in the ventilation chamber and are on one side of the rotation axis along the fourth direction. The third direction is perpendicular to the fourth direction, and the third direction and the fourth direction are both perpendicular to the rotation axis.

[0028] According to the present application, when the pressure in the cooking space changes, one of the two ventilation interfaces allows air to flow out of the ventilation chamber, and the other allows air to flow into the ventilation chamber. Since the two ventilation interfaces are arranged on both sides of the rotation axis along the third direction, and the two ventilation interfaces and the ventilation chamber are both facing one side of the rotation axis along the fourth direction, the air flow between the two ventilation interfaces acts on the same side of the impeller or the pointer, ensuring that the impeller can rotate in a preset rotation direction, so that the user can accurately know the pressure change in the cooking space through the rotation of the pointer.

[0029] Optionally, the cooking appliance further comprises a transparent cover, which is constructed as a completely transparent or translucent structure, and the transparent cover is connected to the outward surface of the cover body to form a receiving cavity between the transparent cover and the cover body, and the pointer is located in the receiving cavity.

[0030] According to the present application, a transparent cover is provided to accommodate the pointer in the accommodating cavity between the transparent cover and the cover body, thereby protecting the pointer and facilitating observation by the user.

[0031] Optionally, the cover body comprises:

[0032] Upper cover; and

[0033] a panel connected to the upper portion of the upper cover along a thickness direction of the upper cover,

[0034] The outer periphery of the transparent cover is located between the panel and the upper cover along the thickness direction.

[0035] According to the present application, the transparent cover can be prevented from being separated from the cover body by installing the outer periphery of the transparent cover between the panel and the upper cover of the cover body in a limited position along the thickness direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The following drawings of the embodiments of the present application are hereby used as part of the present application for understanding the present application. The drawings show the embodiments of the present application and their descriptions, and are used to explain the principles of the present application. In the drawings,

[0037] Figure 1 is a side cross-sectional schematic diagram of a cooking appliance according to a first embodiment of the present application;

[0038] Figure 2 for Figure 1 A top perspective schematic diagram of the internal structure of the cover of the cooking utensil;

[0039] Figure 3 for Figure 1 A three-dimensional schematic diagram of a cover body of a cooking utensil;

[0040] Figure 4 for Figure 3 A schematic top view of a removable cover;

[0041] Figure 5 for Figure 1 A side cross-sectional schematic diagram of the internal structure of the cover of the cooking utensil, wherein the communication port opening and closing assembly is located in an open position;

[0042] Figure 6 for Figure 1 A side cross-sectional schematic diagram of the internal structure of the cover of the cooking utensil, wherein the communication port opening and closing assembly is located in a blocking position;

[0043] Figure 7 for Figure 2 A schematic top cross-sectional view of the airflow reversing device shown, wherein the valve core is located in the second ventilation position;

[0044] Figure 8 for Figure 2 A schematic top cross-sectional view of the airflow reversing device shown, wherein the valve core is located in a first ventilation position;

[0045] Fig. 9 for Figure 1 A schematic diagram of an airflow path of a cooking appliance, wherein the reversing component is in a ventilation working state;

[0046] Fig.10 for Figure 1 A schematic diagram of an airflow path of a cooking appliance, wherein the reversing assembly is in a sealed working state;

[0047] Fig.11 for Figure 2A three-dimensional schematic diagram of the power supply device and the intermediate power transmission device shown;

[0048] Fig.12 for Fig.11 A bottom view schematic diagram of the power supply device and the intermediate power transmission device shown;

[0049] Fig.13 for Figure 1 A side cross-sectional schematic diagram of the internal structure of the cover of the cooking utensil, wherein the reversing assembly is in a ventilation working state;

[0050] Fig.14 for Figure 1 A side cross-sectional schematic diagram of the internal structure of the cover of the cooking utensil, wherein the reversing assembly is in a sealed working state;

[0051] Fig.15 is a top perspective schematic diagram of the internal structure of the cover of the cooking utensil according to the second embodiment of the present application;

[0052] Fig.16 for Fig.15 A three-dimensional schematic diagram of a power supply device and an intermediate power transmission device;

[0053] Fig.17 It is a side cross-sectional schematic diagram of the internal structure of the cover of the cooking utensil according to the third embodiment of the present application, wherein the reversing assembly is in a ventilation working state;

[0054] Fig.18 It is a side cross-sectional schematic diagram of the internal structure of the cover of the cooking utensil according to the third embodiment of the present application, wherein the reversing assembly is in a sealing working state;

[0055] Fig.19 for Fig.17 and Fig.18 A three-dimensional schematic diagram of a transmission body of an intermediate power transmission device shown;

[0056] Fig. 20 for Fig.19 A side cross-sectional schematic diagram of a transmission body of the intermediate power transmission device shown;

[0057] Fig.21 It is a side cross-sectional schematic diagram of the internal structure of the cover of the cooking utensil according to the fourth embodiment of the present application, wherein the reversing assembly is in a ventilation working state;

[0058] Fig. 22 It is a side cross-sectional schematic diagram of the internal structure of the cover of the cooking utensil according to the fourth embodiment of the present application, wherein the reversing assembly is in a sealing working state;

[0059] Fig.23 for Fig.21 and Fig. 22 A three-dimensional schematic diagram of the first switching portion shown;

[0060] Fig.24 for Fig.23 A side cross-sectional schematic diagram of the first switching portion shown;

[0061] Fig.25 for Fig.21 and Fig. 22 A three-dimensional schematic diagram of the second switching portion shown;

[0062] Fig.26 for Fig.25 A side cross-sectional schematic diagram of a second switching portion shown;

[0063] Fig. 27 A top view of a cooking appliance according to another preferred embodiment of the present application;

[0064] Fig.28 For along Fig. 27 A cross-sectional view taken along line AA in FIG.

[0065] Fig.29 for Fig.28 The enlarged view of point Ⅰ in the figure;

[0066] Fig.30 for Fig. 27 and Fig.28 An exploded view of the cover body is shown;

[0067] Fig.31 for Fig.30 The structural schematic diagram of the vent seat shown in ;

[0068] Fig.32 This is a circuit schematic diagram of a power generation coil and two light emitting diodes connected in parallel according to a preferred embodiment of the present application;

[0069] Fig.33 for Fig. 27 Schematic diagram of the structure of the cover body in the disassembled state.

[0070] Description of reference numerals:

[0071] 10: Cover 11: Surface cover

[0072] 11B: Receiving slot

[0073] 11C: Upper cover 11D: Panel

[0074] 12: Lining cover 13: Removable cover

[0075] 14: Pot mouth sealing ring 15: Concave part

[0076] 16: Ventilation cavity 16A: Ventilation hole outside the ventilation cavity

[0077] 17: Connecting port 18: Air inlet and outlet

[0078] 18A: Additional air inlet and outlet 19: Air inlet and outlet cavity

[0079] 21: First fixed seat 22: Second fixed seat

[0080] 23: First seal 24: Second seal

[0081] 25: Third seal 26: Push rod through hole

[0082] 27: Snap-on part 28: Removable cover snap-on part

[0083] 28A: Removable cover mounting portion 29: Upper convex portion

[0084] 30: Pot body 31: Pot core

[0085] 32: Cooking space 33: Heating device

[0086] 34: Temperature sensor 35: Torsion spring

[0087] 36: Pivot shaft 37: Sensor through hole

[0088] 38A: First air inlet and outlet 38B: Second air inlet and outlet

[0089] 39: Additional sensor through hole 40: Communication port opening and closing assembly

[0090] 41: putter 42: putter cover

[0091] 43: flange 44: push rod spring

[0092] 45: Push rod assembly 46: Push rod assembly first end

[0093] 47: Push rod assembly second end 48: Push rod first end

[0094] 49: push rod second end 50: air flow reversing device / reversing valve

[0095] 51: First vent 52: Second vent

[0096] 53: Third vent 54: Fourth vent

[0097] 55: Valve body 55A: Valve cavity

[0098] 55B: Valve hole 55C: First end of valve body

[0099] 55D: Second end of valve body 55E: First inner cavity

[0100] 55F: Second inner cavity 55G: Third inner cavity

[0101] 55H: fourth inner cavity 56: valve core

[0102] 57: Valve core spring 58: Valve core body

[0103] 58A: Valve core cavity 58B: First through hole

[0104] 58C: Second through hole 59A: First sealing ring

[0105] 59B: Second sealing ring 59C: Third sealing ring

[0106] 60 / 160 / 260 / 360: Reversing components

[0107] 61: Linkage 62: Connecting rod

[0108] 63: Connecting rod first end 64: Connecting rod second end

[0109] 65: First pin 66: Second pin

[0110] 70 / 170 / 270 / 370: Intermediate power transmission device

[0111] 70A / 270A / 370A: Transmission body

[0112] 71: Second transmission surface

[0113] 71A / 271A: Second transmission surface first end

[0114] 71B / 271B: Second end of the second transmission surface

[0115] 71C / 271C: Middle part of the second transmission surface

[0116] 72: Transmission part 73: Raised part

[0117] 73A: Outer peripheral surface of the protrusion 74: Inclined portion

[0118] 75: first circumferential surface 76: second circumferential surface

[0119] 77: Third circumferential surface 79 / 379: First transmission surface

[0120] 80 / 180 / 280 / 380: Power supply device

[0121] 81: Motor 82: Motor mounting part

[0122] 85: Gas circuit structure 90: Steam valve

[0123] 91: Steam valve cavity 93: Air pump air inlet

[0124] 94: Air pump outlet 95: Air flow generating device / air pump

[0125] 100: Cooking Utensils 188: First Gear

[0126] 189: Second gear 271: Second transmission surface

[0127] 272: Slider seat 272A: Slider seat mounting portion

[0128] 273: Slider 273E: Connecting part

[0129] 274: Slider spring 275: Slider seat cavity

[0130] 276A: Slider seat side wall 276B: Slider seat end wall

[0131] 276C: Slider seat bottom wall 277: Slide groove

[0132] 278: Support pin 279: Slider protrusion

[0133] 281: Push-pull electromagnet 361: First reversing unit

[0134] 362: Second reversing part 370A: Transmission body

[0135] 371: Reversing mechanism body 372: Inclined portion

[0136] 373: Main body groove 374: Bolt

[0137] 375: Side

[0138] 375A / 379A: Low end

[0139] 375B / 379B: High-end

[0140] 376: Connecting pin 377: Electromagnet

[0141] 377A: Plug 378: Slide rail

[0142] 381: Iron block 382: Iron block bracket

[0143] 383: Iron block bracket cover 384: Bracket mounting part

[0144] 500: Photoelectric display component 501: Indicator light

[0145] 502: Impeller

[0146] 503: Ventilation seat 503A: Ventilation groove

[0147] 503B: Ventilation interface 504: Ventilation chamber

[0148] 505: Rotating shaft 506: Transparent cover

[0149] 507: Vent seat seal 508: Accommodation cavity

[0150] 509: Bearing 510: Magnetic parts

[0151] 511: Generator coil 512: Circuit board

[0152] 520: Pipeline D1: First direction

[0153] D2: Second direction D3: Third direction

[0154] D4: Fourth direction AX: Rotation axis DETAILED DESCRIPTION

[0155] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application embodiments can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application embodiments, some technical features well known in the art are not described.

[0156] In order to fully understand the implementation of the present application, a detailed structure will be presented in the following description. Obviously, the implementation of the implementation of the present application is not limited to the specific details familiar to those skilled in the art.

[0157] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present application, and the singular forms "a", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, integral bodies, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components and / or combinations thereof.

[0158] Ordinal numbers such as "first" and "second" cited in this application are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used in this application are for illustrative purposes only and are not limiting.

[0159] Hereinafter, specific embodiments of the present application will be described in more detail with reference to the accompanying drawings. These drawings show representative embodiments of the present application and do not limit the present application.

[0160] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings.

[0161] like Figure 1 As shown, the cooking utensil 100 of the present application includes a cover 10 and a pot 30. The pot 30 is used for cooking food, and the cover 10 is used to cover the pot 30. For example, the cover 10 is connected to the pot 30 in an openable and closable manner, and is used to cover the pot 30. When the cover 10 covers the pot 30, a cooking space 32 is formed between the cover 10 and the pot 30.

[0162] The pot body 30 is provided with a pot 31 for accommodating food, a heating device 33, a control device (not shown) and a lower temperature sensor (not shown). The pot 31 for holding food can be removed and arranged in the pot body 30. When the cover body 10 covers the pot body 30, a cooking space 32 is formed between the cover body 10 and the pot 31. The heating device 33 is arranged at the bottom of the pot body 30, below the pot 31, to heat the food in the pot 31. The control device can be, for example, a micro control unit (MCU) for realizing cooking control of the cooking utensil 100. The lower temperature sensor is used to detect the temperature of the pot 31, which can be arranged at the bottom center of the pot body 30 or at the side of the pot body 30. A top temperature sensor 34 can also be arranged on the cover body 10, and the top temperature sensor 34 is used to detect the temperature at the top of the cooking space 32. The heating device 33, the lower temperature sensor and the top temperature sensor 34 are all electrically connected to the control device. The temperature sensing component feeds back the sensed temperature to the control device, so that the control device can achieve more accurate control of, for example, the heating device 33 based on the temperature information.

[0163] like Figure 1 and Figure 2 As shown, in the present application, the cover 10 is connected to the pot body 30 via a pivot shaft 36, a torsion spring 35 is disposed on the pivot shaft 36, and two ends of the torsion spring 35 respectively abut against the cover 10 and the pot body 30, so that the torsion spring 35 can apply an elastic force to the cover 10 away from the pot body 30. When the cover 10 is opened, the cover 10 can bounce upward under the elastic force of the torsion spring 35 and rotate around the pivot shaft 36.

[0164] like Figures 1 to 4As shown, the cover body 10 includes a surface cover 11, a lining cover 12 and a removable cover 13. The surface cover 11 is located at the outermost side (i.e., the uppermost side) of the cover body 10 to form the outer shell of the cover body 10. The lining cover 12 is arranged below the surface cover 11 and connected to the surface cover 11. For example, the lining cover 12 can be connected to the surface cover 11 by fasteners or buckles. The lining cover 12 is mainly used to centrally install various functional parts of the cover body 10 that sense and control the working state of the cooking utensil 100, such as sensors. The removable cover 13 is located at the innermost side (i.e., the lowermost side) of the cover body 10 and is arranged below the lining cover 12. The removable cover 13 is detachably connected to the lining cover 12, for example, by a buckle connection, so as to facilitate cleaning and replacement. The removable cover 13 is used to face the cooking space 32, that is, when the cover body 10 is covered on the pot body 30, the removable cover 13 is located directly above the cooking space 32.

[0165] like Figure 3 and Figure 4 As shown, the removable cover 13 is provided with a snap-on portion 27 and a removable cover snap-on portion 28. The snap-on portion 27 is used to extend into the snap-on portion accommodating portion of the lining cover 12, and then the removable cover snap-on portion 28 cooperates with the removable cover mounting portion 28A of the lining cover to achieve a detachable connection of the removable cover 13. Specifically, the snap-on portion 27 and the removable cover snap-on portion 28 are arranged on opposite sides of the removable cover 13, the snap-on portion 27 is inserted into the lining cover 12, and the removable cover snap-on portion 28 is buckled with the removable cover mounting portion 28A to complete the assembly of the removable cover 13.

[0166] The lining cover 12 is also provided with a sensor through hole 37. The removable cover 13 is also provided with an additional sensor through hole 39. The sensor through hole 37 and the additional sensor through hole 39 are used to install the top temperature sensor 34, so that the sensitive element is closer to the cooking space 32. The removable cover 13 is also provided with an upper protrusion 29, which is specifically a plurality of protrusions, so that water vapor can condense on the protrusions during cooking, and does not drip into the cooking space, so as to avoid excessive moisture on the surface of the rice. An interlayer can be formed between the lining cover 12 and the removable cover 13. The removable cover 13 is provided with a pot mouth sealing ring 14. When the cover body 10 covers the pot body 30, the pot mouth sealing ring 14 seals and contacts the opening or inner wall of the pot 31, thereby achieving a seal between the cover body 10 and the pot 31, which can adapt to pressure cooking and has a limiting and guiding effect on the steam discharge flow direction.

[0167] An air inlet and outlet cavity 19 is provided on the cover body 10. The air inlet and outlet cavity 19 includes two openings, the air inlet and outlet port 18 and the additional air inlet and outlet port 18A. The air inlet and outlet port 18 is used to connect the air inlet and outlet cavity 19 with the cooking space 32, that is, the air inlet and outlet port 18 is connected with the cooking space 32. The air inlet and outlet cavity 19 is, for example, provided to the lining cover 12. Correspondingly, a first air inlet and outlet port 38A is provided on the lining cover 12, and a second air inlet and outlet port 38B is provided on the removable cover 13. The first air inlet and outlet port 38A and the second air inlet and outlet port 38B are connected as a whole as the air inlet and outlet port 18 with the air inlet and outlet cavity 19. The additional air inlet and outlet port 18A is used to connect with the air flow generating device 95, so that the cooking space 32 is connected with the air flow generating device 95 through the air inlet and outlet cavity 19 of the cover body 10.

[0168] The cover body 10 is provided with a ventilation cavity 16. The ventilation cavity 16 is not connected to the inlet and outlet cavity 19 inside the cover body 10. The cooking space 32 is connected to the external environment through the ventilation cavity 16. The ventilation cavity 16 is, for example, surrounded by a part of the lining cover 12 and a part of the removable cover 13. Correspondingly, the removable cover 13 is provided with a connecting port 17, which connects the ventilation cavity 16 with the cooking space 32. The lining cover 12 is provided with ventilation holes 16A outside the ventilation cavity, and the ventilation holes 16A outside the ventilation cavity are respectively connected to the ventilation cavity 16 and the external environment, so that the cooking space 32 is connected to the outside.

[0169] For example, a steam valve 90 is provided on the cover body 10. A steam valve vent (not shown in the figure) connected to the outside is provided on the steam valve 90, and a steam channel (not shown in the figure) connected to the steam valve 90 is also provided in the cover body 10. The vent hole 16A outside the ventilation cavity is connected to the steam channel. Thus, the cooking space 32 is connected to the external environment through the connecting port 17, the ventilation cavity 16, the vent hole 16A outside the ventilation cavity, the steam channel and the steam valve 90. Alternatively, the steam valve vent can be directly connected to the vent hole 16A outside the ventilation cavity. In the present application, the steam valve 90 is used to connect the cooking space 32 with the external environment to discharge the steam generated by cooking.

[0170] In the ventilation cavity 16, the communication port 17 and the ventilation hole 16A outside the ventilation cavity are arranged at intervals, so that the communication port 17 and the ventilation hole 16A outside the ventilation cavity have better relative independence.

[0171] On the basis of the above embodiment, a second seal 24 is provided between the lining cover 12 and the removable cover 13 to form the side wall of the ventilation cavity 16. The second seal 24 is in sealing contact with the lining cover 12 and the removable cover 13 respectively, so that the steam generated by cooking can only enter the ventilation cavity 16 from the connecting port 17, and will not enter other parts of the lining cover 12. Similarly, a third seal 25 is provided between the second air inlet and outlet 38B and the first air inlet and outlet 38A, and the air inlet and outlet cavity 19 is in sealing contact with the removable cover 13 through the third seal 25, that is, the side wall of the air inlet and outlet cavity 19 is in sealing contact with the removable cover 13, so that the steam generated by cooking can only enter the air inlet and outlet cavity 19 from the air inlet and outlet 18, and will not enter other parts of the lining cover 12. For example, Figure 3 As shown, the removable cover 13 is provided with a lower concave portion 15, and the communication port 17 and the second air inlet and outlet 38B are both provided in the lower concave portion 15. The lower ends of the second sealing member 24 and the third sealing member 25 are respectively in contact with the upper side and / or side wall of the lower concave portion 15 to close the combined gap and form a seal. It can be understood that a portion of the lower concave portion 15 constitutes the bottom wall of the ventilation cavity 16.

[0172] like Figure 2 As shown, in the present application, the lining cover 12 is equipped with a connection port opening and closing assembly 40, an airflow reversing device 50, a reversing assembly 60 and an airflow generating device 95. Among them, the connection port opening and closing assembly 40 is movable relative to the connection port 17, and is used to open or block the connection port 17. The airflow reversing device 50 is respectively connected with the airflow generating device 95 and the air inlet and outlet 18, and is used to switch the airflow direction between the airflow generating device 95 and the air inlet and outlet 18, so that the airflow generating device 95 can deliver or suck gas to the cooking space 32 through the air inlet and outlet 18. In the present application, the airflow generating device 95 and the airflow reversing device 50 are connected by a pipeline to form the gas path structure 85 of the cooking utensil 100. The reversing assembly 60 is movable relative to the cover body 10. The reversing assembly 60 is connected to and acts on the connection port opening and closing assembly 40 and the airflow reversing device 50, so that when the reversing assembly 60 moves relative to the cover body 10, the working state of the connection port opening and closing assembly 40 and the airflow reversing device 50 changes. It can be understood that the airflow generating device 95 and the reversing assembly 60 are electrically connected to the control device and operate under the control of the control device.

[0173] In some embodiments of the present application, when the reversing assembly 60 moves relative to the cover body 10, the reversing assembly 60 drives the communication port opening and closing assembly 40 and the airflow reversing device 50 to act synchronously or in conjunction with each other, so that the cooking space 32 has two air pressure states under the action of the communication port opening and closing assembly 40 and the airflow generating device 95. Specifically, the two air pressure states of the cooking space 32 include: a first air pressure state in which the cooking space 32 is connected to the external environment; and a second air pressure state in which the air pressure of the cooking space 32 is lower than the air pressure of the external environment. It is understandable that, according to the specific needs of different cooking processes of the cooking utensil 100, the cooking space 32 can be placed in different air pressure states by controlling the reversing assembly 60 and the airflow generating device 95, and different air pressures can be present in the cooking space 32, thereby achieving corresponding cooking effects.

[0174] Correspondingly, the reversing assembly 60 has different working states when it moves to different positions relative to the cover body 10. The different working states of the reversing assembly 60 correspond to different air pressure states of the cooking space 32. Specifically, the reversing assembly 60 has a ventilation working state and a sealing working state. The cooking appliance 100 is configured such that when the reversing assembly 60 is in the ventilation working state, the reversing assembly 60 causes the communication port opening and closing assembly 40 to open the communication port 17 (such as Figure 5 As shown), the cooking space 32 is connected to the external environment and is in a first air pressure state; when the reversing component 60 is in a sealed working state, the reversing component 60 causes the communication port opening and closing component 40 to block the communication port 17 (as shown Figure 6 As shown), and the airflow generating device 95 is in a state of extracting air from the cooking space 32, so that the cooking space 32 is sealed and the airflow is lost, so that it can be in a second air pressure state.

[0175] It can be seen that to achieve the first air pressure state of the cooking space 32, it is only necessary to open the connecting port 17. At this time, the cooking space 32 is connected to the external environment, and the air pressure in the cooking space 32 is the same as the air pressure in the external environment when the ventilation balance is reached. At this time, if the airflow generating device 95 is working, an airflow will be formed inside the cooking space 32, between the connecting port 17 and the air inlet and outlet 18, and the airflow will contain air from the external environment, thereby accelerating the ventilation between the cooking space 32 and the external environment, and basically not affecting the air pressure in the cooking space 32. To achieve the second air pressure state, the connecting port 17 must be blocked, and the airflow generating device 95 must be operated at the same time, and air is sucked from the cooking space 32 through the air inlet and outlet 18, so that the cooking space 32 is in a negative pressure.

[0176] In the present application, the connecting port opening and closing component 40 is used to block or open the connecting port 17. The connecting port 17 is preferably arranged above the pot body 31 and extends in the horizontal plane. To achieve better sealing, the connecting port opening and closing component 40 preferably moves in the vertical dimension. The airflow reversing device 50 can realize multiple on-off modes of multiple flow paths through a mechanical structure. The structure has a switching process, and the switching mechanism has a certain weight. If it is placed vertically or at an angle to the horizontal plane, it will affect its control accuracy. Therefore, the airflow reversing device 50 preferably works in the horizontal dimension. In the present application, the reversing component 60 drives the airflow reversing device 50 to move in a first geometric dimension, and drives the connecting port opening and closing component 40 to move in a second geometric dimension, and the first geometric dimension is perpendicular to the second geometric dimension. Preferably, when the cover body 10 covers the pot body 30, the first geometric dimension is a straight line in the horizontal plane, and the second geometric dimension is a straight line perpendicular to the horizontal plane. As Figure 2 As shown, the first geometric dimension is a horizontal first direction D1, and the second geometric dimension is a vertical second direction D2.

[0177] The following describes the mechanism by which the communication port opening and closing assembly 40 opens or closes the communication port 17 .

[0178] In the present application, the cooking appliance 100 is configured such that the reversing assembly 60 drives the communication port opening and closing assembly 40 to move between an open position and a blocked position relative to the cover body 10 along the second direction D2. When the communication port opening and closing assembly 40 is located at the open position, the communication port opening and closing assembly 40 opens the communication port 17; when the communication port opening and closing assembly 40 is located at the blocked position, the communication port opening and closing assembly 40 blocks the communication port 17.

[0179] In some embodiments of the present application, the lining cover 12 is provided with a fixing seat for mounting the functional components. Figure 5 and Figure 6 As shown, the fixing seat includes a second fixing seat 22 surrounding the ventilation cavity 16 and a first fixing seat 21 arranged on the second fixing seat 22. The first fixing seat 21 is provided with a push rod through hole 26 extending along the second direction D2, and the push rod through hole 26 extends all the way to the ventilation cavity 16. The connecting port 17 is located directly below the push rod through hole 26. The connecting port opening and closing assembly 40 includes a push rod assembly 45, and the push rod assembly 45 is arranged in the push rod through hole 26, wherein the reversing assembly 60 is connected to and acts on the push rod assembly 45, so that the push rod assembly 45 is movable between a blocked position and an open position relative to the push rod through hole 26. The push rod assembly 45 includes a push rod assembly first end 46 and a push rod assembly second end 47 which are arranged oppositely along the second direction D2. As shown Figure 6 As shown, when the push rod assembly 45 is in the blocking position, the first end portion 46 of the push rod assembly blocks the communication port 17, and the cooking space 32 is not connected to the ventilation cavity 16. At this time, the reversing assembly 60 is in a sealed working state; Figure 5As shown, when the push rod assembly 45 is in the open position, the first end 46 of the push rod assembly opens the communication port 17, and the cooking space 32 is connected to the ventilation cavity 16. Preferably, the second direction D2 is a vertical direction. The blocking position of the push rod assembly 45 is lower than the open position of the push rod assembly 45.

[0180] The first sealing member 23 is provided at one end of the push rod through hole 26 facing the ventilation cavity 16, and the first sealing member 23 is used to seal between the push rod through hole 26 and the ventilation cavity 16. Specifically, the first sealing member 23 seals and contacts the push rod assembly 45, so that the gas in the ventilation cavity 16 will not leak from the push rod through hole 26. The second end 47 of the push rod assembly is provided with a flange 43 protruding outward in the radial direction, and the radial dimension of the flange 43 is greater than the radial dimension of the push rod through hole 26. The connecting port opening and closing assembly 40 also includes a push rod spring 44, which is sleeved on the outer periphery of the second end 47 of the push rod assembly and is located between the flange 43 and the first fixing seat 21. When in the blocking position, the first end 46 of the push rod assembly presses the first sealing member 23 to the connecting port 17, and the push rod spring 44 is compressed.

[0181] In a feasible implementation of this embodiment, the push rod assembly 45 includes a push rod 41 and a push rod sleeve 42. The push rod 41 extends along the second direction D2. Specifically, the push rod 41 is disposed in the push rod through hole 26 and is located in the blocking position (eg, Figure 6 as shown) and the open position (as Figure 5 The push rod 41 includes a first end 48 and a second end 49 of the push rod, which are arranged oppositely along the second direction D2. The first end 48 of the push rod is used to block or open the connecting port 17. When the push rod 41 is in the blocking position, the first end 48 of the push rod blocks the connecting port 17; when the push rod 41 is in the open position, the first end 48 of the push rod opens the connecting port 17. The first sealing member 23 seals and contacts the first end 48 of the push rod, so that the gas in the ventilation cavity 16 will not leak from the push rod through hole 26. The first end 48 of the push rod is also the first end 46 of the push rod assembly. The push rod sleeve 42 is sleeved on the outer periphery of the second end 49 of the push rod 41, and the push rod sleeve 42 moves synchronously with the push rod 41 along the second direction D2 relative to the first fixed seat 21. A flange 43 is provided at one end of the push rod sleeve 42 away from the connecting port 17 along the second direction D2. The push rod spring 44 is sleeved on the outer periphery of the push rod sleeve 42 and is located between the flange 43 and the first fixing seat 21. The push rod second end 49 and the push rod sleeve 42 constitute the push rod assembly second end 47. The reversing assembly 60 is connected to and acts on the push rod sleeve 42.

[0182] When the reversing assembly 60 changes from the ventilating working state to the sealing working state, the reversing assembly 60 moves the push rod sleeve 42 relative to the first fixed seat 21 along the second direction D2 (for example, moves downward toward the connecting port 17), so that the push rod 41 moves to the blocking position, and the push rod spring 44 is compressed; when the reversing assembly 60 changes from the sealing working state to the ventilating working state, the push rod spring 44 moves the push rod sleeve 42 relative to the first fixed seat 21 along the second direction D2 (for example, moves upward away from the connecting port 17), so that the push rod 41 moves to the open position. It can be understood that the push rod 41 changes its position relative to the connecting port 17 (from the open position to the blocking position, or from the blocking position to the open position), that is, the connecting port opening and closing assembly 40 changes its working state.

[0183] The specific implementation of the airflow reversing device 50 is introduced below.

[0184] like Figure 7 and Figure 8 As shown, the airflow reversing device 50 is configured as a reversing valve, for example. The reversing valve 50 includes a valve inner cavity 55A and a valve core 56. The valve core 56 is disposed in the valve inner cavity 55A and can move therein to switch the airflow channel therein.

[0185] The reversing valve 50 includes a first vent 51, a second vent 52, a third vent 53, and a fourth vent 54. The reversing valve 50 is configured so that the communication relationship between the first vent 51, the second vent 52, the third vent 53, and the fourth vent 54 can be changed. For example, the first vent 51 can be communicated with the third vent 53 or the fourth vent 54. When the first vent 51 is communicated with one of the third vent 53 and the fourth vent 54, the second vent 52 is communicated with the other of the third vent 53 and the fourth vent 54.

[0186] like Fig. 9 and Fig.10 As shown, the airflow generating device 95 is configured as an air pump, for example. The air pump 95 has an air pump air inlet 93 and an air pump air outlet 94. Specifically, one of the first air vent 51 and the second air vent 52 is connected to the air pump air outlet 94. The other of the first air vent 51 and the second air vent 52 is connected to the air pump air inlet 93. One of the third air vent 53 and the fourth air vent 54 is connected to the air inlet and outlet 18. The other of the third air vent 53 and the fourth air vent 54 is connected to the external environment.

[0187] Specifically, one of the third vent 53 and the fourth vent 54 of the reversing valve 50 is connected to the additional inlet and outlet 18A of the inlet and outlet cavity 19 through a sealed air pipe, thereby communicating with the inlet and outlet 18, that is, one end of the air path structure 85 is connected to the inlet and outlet 18. According to the above, the steam valve 90 is connected to the outside world. Specifically, the steam valve 90 includes a steam valve inner cavity 91. The other of the third vent 53 and the fourth vent 54 of the reversing valve 50 is connected to the steam valve inner cavity 91, so that the other end of the air path structure 85 is connected to the outside world. Among them, the opening of the steam valve inner cavity 91 connected to the reversing valve 50 is not used to discharge steam, that is, the steam valve 90 is provided with an independent outlet for discharging steam, and the steam valve inner cavity 91 is always connected to the external environment. Specifically, the steam valve 90 is respectively connected to the air pump 95, the cooking space 32, and the external environment. It should be noted that when the cooking space 32 is in the first air pressure state, the cooking space 32 is connected to the steam valve 90 to exhaust steam to the outside environment, and the air pump 95 is connected to the steam valve 90 to deliver the outside environment air into the cooking space 32. At this time, the exhaust passage of the cooking space 32 and the air intake passage of the air pump 95 may not be connected inside the steam valve 90, that is, the exhaust passage of the cooking space 32 and the air intake passage of the air pump 95 are different passages in the steam valve inner cavity 91.

[0188] like Figure 7 and Figure 8 As shown, in some embodiments of the present application, the reversing valve 50 includes a valve body 55, and the valve body 55 is a hollow structure, forming a valve inner cavity 55A. The valve body 55 is set to the cover body 10 (specifically, the lining cover 12). The first vent 51, the second vent 52, the third vent 53 and the fourth vent 54 are all set to the valve body 55 and communicate with the valve inner cavity 55A. The valve core 56 is set in the valve inner cavity 55A and is relative to the valve body 55 along the first direction D1. At the first ventilation position (such as Figure 8 as shown) and a second ventilation position (as Figure 7 It can be understood that the valve core 56 moves relative to the valve body 55 to change position (from the first ventilation position to the second ventilation position, or from the second ventilation position to the first ventilation position), that is, the reversing valve 50 changes its working state.

[0189] The cooking appliance 100 is configured such that the reversing assembly 60 drives the valve core 56 to move in the valve cavity 55A along the first direction D1 relative to the valve cavity 55A (ie, the cover 10) between the first ventilation position and the second ventilation position.

[0190] like Figure 7 and Figure 8As shown, the valve body 55 has a valve body first end 55C and a valve body second end 55D which are arranged oppositely along the first direction D1. The valve body first end 55C is provided with a valve hole 55B. The valve core 56 extends out of the valve hole 55B at least in the second ventilation position. The reversing valve 50 also includes a valve core spring 57. The valve core spring 57 is also arranged in the valve inner cavity 55A and is located between the valve body second end 55D and the valve core 56. The valve core spring 57 extends along the first direction D1. Preferably, the first direction D1 is a horizontal direction.

[0191] Specifically, the valve core 56 includes a valve core body 58, a first through hole 58B, a second through hole 58C, a first sealing ring 59A, a second sealing ring 59B and a third sealing ring 59C. The valve core body 58 is arranged in the valve inner cavity 55A and is movable between a first ventilation position and a second ventilation position relative to the valve inner cavity 55A along the first direction D1. The valve core body 58 extends out of the valve hole 55B at least in the second ventilation position. The valve core body 58 includes the valve core inner cavity 58A, that is, the valve core body 58 is a hollow structure. The first through hole 58B and the second through hole 58C are arranged in the valve core body 58 so that the valve inner cavity 55A is connected with the valve core inner cavity 58A. The first through hole 58B and the second through hole 58C are spaced apart along the first direction D1, the first through hole 58B is close to the first end 55C of the valve body, and the second through hole 58C is close to the second end 55D of the valve body. The first sealing ring 59A, the second sealing ring 59B and the third sealing ring 59C are sleeved on the outer periphery of the valve core body 58 and sealably contact the inner wall of the valve inner cavity 55A. The first sealing ring 59A, the second sealing ring 59B and the third sealing ring 59C are arranged in sequence along the first direction D1, and the first sealing ring 59A is closest to the first end 55C of the valve body. The first sealing ring 59A and the second sealing ring 59B are respectively located on both sides of the first through hole 58B along the first direction D1, and the second sealing ring 59B and the third sealing ring 59C are located between the first through hole 58B and the second through hole 58C along the first direction.

[0192] On the basis of the above embodiment, the four vents of the valve body 55 are arranged in the order of the first vent 51, the third vent 53, the second vent 52, and the fourth vent 54 along the first direction D1, wherein the first vent 51 is close to the first end 55C of the valve body, and the fourth vent 54 is close to the second end 55D of the valve body. It can be understood that the three sealing rings divide the valve inner cavity 55A into four parts that are not connected to each other, namely, the first inner cavity 55E located between the first sealing ring 59A and the first end 55C of the valve body, the second inner cavity 55F located between the first sealing ring 59A and the second sealing ring 59B, the third inner cavity 55G located between the second sealing ring 59B and the third sealing ring 59C, and the fourth inner cavity 55H located between the third sealing ring 59C and the second end 55D of the valve body. It can be understood that when the valve core body 58 moves along the first direction D1, the positions of the three sealing rings in the valve cavity 55A change, so that the distribution of the four parts of the valve cavity 55A changes, thereby changing the docking relationship between the four parts of the valve cavity 55A and the four air ports of the valve body 55, thereby changing the connection relationship of the four air ports.

[0193] Thus, the reversing valve 50 can be configured such that when the valve core body 58 is located at the second ventilation position (eg Figure 7 As shown in FIG. 1 , the first vent 51 and the third vent 53 are located between the second sealing ring 59B and the third sealing ring 59C along the first direction D1, and the second vent 52 and the fourth vent 54 are located on the side of the third sealing ring 59C close to the second end 55D of the valve body along the first direction D1. Figure 7 As shown, the first vent 51 and the third vent 53 are connected through the third inner cavity 55G, and the second vent 52 and the fourth vent 54 are connected through the fourth inner cavity 55H. It can be understood that inside the reversing valve 50, the air path connecting the first vent 51 and the third vent 53 and the air path connecting the second vent 52 and the fourth vent 54 are independent of each other and are not connected to each other.

[0194] The reversing valve 50 is also configured such that when the valve core body 58 is located at the first ventilation position (eg Figure 8 As shown in FIG. 1 , the first sealing ring 59A and the second sealing ring 59B are respectively located on both sides of the first vent 51 along the first direction D1, the second vent 52 and the third vent 53 are located between the second sealing ring 59B and the third sealing ring 59C along the first direction D1, and the third sealing ring 59C is located on the side of the fourth vent 54 close to the first end 55C of the valve body. Thus, as shown in FIG. Figure 8As shown, the first vent 51 is connected to the fourth vent 54 through the second inner cavity 55F, the first through hole 58B, the valve core inner cavity 58A, the second through hole 58C and the fourth inner cavity 55H, and the second vent 52 is connected to the third vent 53 through the third inner cavity 55G. It can be understood that inside the reversing valve 50, the air path connecting the first vent 51 and the fourth vent 54 and the air path connecting the second vent 52 and the third vent 53 are independent of each other and are not connected to each other.

[0195] In the illustrated embodiment, the first vent 51 is connected to the air pump outlet 94, the second vent 52 is connected to the air pump inlet 93, the third vent 53 is connected to the air inlet and outlet 18, and the fourth vent 54 is connected to the communication port 17. Thus, when the valve core body 58 is located at the first ventilation position, the air pump 95 draws air from the cooking space 32 via the air inlet and outlet 18 (e.g., Fig.10 When the valve core body 58 is in the second ventilation position, the air pump 95 blows air to the cooking space 32 via the air inlet and outlet 18 (as shown); Fig. 9 shown).

[0196] It can be understood that, depending on the connection relationship between the four vents of the reversing valve 50 and the air pump inlet 93, the air pump outlet 94, the steam valve 90 and the air inlet and outlet 18, when the valve core body 58 is located at the first ventilation position, the air path structure 85 is in one of the states of airflow entering the cooking space 32 and flowing out of the cooking space 32 from the air inlet and outlet 18; when the valve core body 58 is located at the second ventilation position, the air path structure 85 is in another state of airflow entering the cooking space 32 and flowing out of the cooking space 32 from the air inlet and outlet 18. The specific implementation of the reversing assembly 60 is described below.

[0197] like Figures 5 to 10 As shown, the reversing assembly 60 is connected to and acts on the reversing valve 50 (specifically, the valve core 56) and the communication port opening and closing assembly 40. In the illustrated embodiment, the cooking appliance 100 is configured as follows: when the reversing assembly 60 is in the ventilation working state, the reversing assembly 60 causes the communication port opening and closing assembly 40 to open the communication port 17 (such as Figure 5 As shown), and the first vent 51 is connected to the third vent 53, and the second vent 52 is connected to the fourth vent 54 (as shown). Figure 7 and Fig. 9 When the reversing assembly 60 is in a sealed working state, the reversing assembly 60 makes the communication port opening and closing assembly 40 block the communication port 17 (as shown); Figure 6 As shown), and the first vent 51 is connected to the fourth vent 54, and the second vent 52 is connected to the third vent 53 (as shown). Figure 8 and Fig.10 shown).

[0198] like Figure 5 and Figure 7 As shown, when the reversing assembly 60 is in the ventilation working state, the connecting port 17 is opened, the cooking space 32 is connected to the steam valve 90, that is, connected to the external environment, and is in the first air pressure state. At this time, the first air vent 51 is connected to the third air vent 53, and the second air vent 52 is connected to the fourth air vent 54. If the air pump 95 is working, the air pump 95 draws in ambient air through the steam valve cavity 91 and discharges the ambient air into the cooking space 32, so that the cooking space 32 can be cooled by the ambient air. Figure 6 and Figure 8 As shown, when the reversing assembly 60 is in the sealed working state, the connecting port 17 is blocked, and the cooking space 32 is isolated from the steam valve 90, that is, isolated from the external environment. At this time, the first vent 51 is connected with the fourth vent 54, and the second vent 52 is connected with the third vent 53. If the air pump 95 is working, the air pump 95 extracts the air in the cooking space 32, and then discharges the air to the environment through the steam valve inner cavity 91, thereby reducing the air pressure in the cooking space 32, that is, forming a negative pressure in the cooking space 32 relative to the environment, and being in the second air pressure state.

[0199] In some embodiments of the present application, the reversing assembly 60 includes a power supply device 80 and an intermediate power transmission device 70 connected thereto, the power supply device 80 is used to provide power to actuate the connecting port opening and closing assembly 40 and the airflow reversing device 50, and the intermediate power transmission device 70 is connected to the connecting port opening and closing assembly 40 and the airflow reversing device 50, and is used to transmit the power provided by the power supply device 80 to the connecting port opening and closing assembly 40 and the airflow reversing device 50. The intermediate power transmission device 70 has a ventilation working state and a sealing working state.

[0200] Specifically, one of the functions of the reversing assembly 60 is to realize the movement of the valve core 56 in the airflow reversing device 50 in the first geometric dimension, and the second function is to realize the movement of the push rod 41 in the connecting port opening and closing assembly 40 in the second geometric dimension, and the two movements need to be coordinated.

[0201] In the present application, there may be many ways for the structure of the reversing assembly 60 , and several specific implementations of the reversing assembly 60 are introduced below.

[0202] As mentioned above, the reversing assembly 60 is movable relative to the cover body 10 , and is connected to the valve core 56 and the push rod 41 respectively to act on the valve core 56 and the push rod 41 , thereby realizing the above-mentioned two functions of the reversing assembly 60 .

[0203] like Figures 11 to 14In the first embodiment shown, the intermediate power transmission device 70 is configured to be rotatable around a rotation axis extending along the second direction D2 under the drive of the power supply device 80. The intermediate power transmission device 70 includes a transmission body 70A. The transmission body 70A has a ventilation working state and a sealing working state.

[0204] In this embodiment, the transmission body 70A is used to drive the valve core 56 and the push rod 41 to move in two different geometric dimensions. Specifically, the transmission body 70A includes a first transmission surface 79 and a second transmission surface 71 .

[0205] The first transmission surface 79 is at least a portion of the circumferential surface of the transmission body 70A, and is used to connect to and act on the airflow reversing device 50. Different positions of the first transmission surface 79 along the circumferential direction have different radial distances from the rotation axis. Therefore, the first transmission surface 79 protrudes outward in the radial direction, so that when the transmission body 70A rotates, the first transmission surface 79 changes the distance between the valve core 56 and the rotation axis extending in the second direction D2, that is, the valve core 56 moves in the horizontal direction, thereby realizing the switching of the airflow channel inside the reversing valve 50.

[0206] The second transmission surface 71 is another part of the surface of the transmission body 70A, which is used to connect to and act on the communication port opening and closing component 40. The second transmission surface 71 has a second transmission surface first end 71A and a second transmission surface second end 71B which are oppositely arranged along the second direction D2. The position of the second transmission surface first end 71A along the second direction is different from the position of the second transmission surface second end 71B along the second direction D2, that is, the second transmission surface 71 has a high end 71B and a low end 71A with a height difference in the second direction D2, and the high end 71B and the low end 71A have a distance in the horizontal direction. When the transmission body 70A rotates, the height of the part of the second transmission surface 71 connected to the communication port opening and closing component 40 along the second direction D2 changes, so that the communication port opening and closing component 40 moves along the second direction D2.

[0207] A second transmission surface middle portion 71C is provided between the first end portion 71A of the second transmission surface and the second end portion of the second transmission surface, and the position of the second transmission surface middle portion 71C along the second direction D2 varies with the circumferential position of the second transmission surface middle portion 71C. The high end 71B and the low end 71A of the second transmission surface 71 are smoothly connected by the second transmission surface middle portion 71C. In some feasible embodiments, the second transmission surface 71 can be constructed as a combination of one or more of an inclined surface, a curved surface, and a stepped surface. The second transmission surface 71 can be the outer surface of the intermediate power transmission device 70, or it can be the inner surface of the intermediate power transmission device 70 (e.g., the inner wall of the slideway).

[0208] It can be understood that, in the projection of the transmission body 70A along the second direction, the second transmission surface 71 is located in the first area of ​​the transmission body 70A along the circumferential direction, and the first transmission surface 79 is located in the second area of ​​the transmission body 70A along the circumferential direction. The first area and the second area at least partially overlap or do not overlap each other. The first transmission surface 79 and the second transmission surface 71 act on the reversing valve 50 and the communication port opening and closing assembly 40 respectively in two geometric dimensions. In some embodiments, the planes where the first transmission surface 79 and the second transmission surface 71 act are perpendicular to each other.

[0209] In the present embodiment, the intermediate power transmission device 70 further includes a connecting rod mechanism 61. The connecting rod mechanism 61 is used to transmit the power of the transmission body 70A (specifically, the second transmission surface 71) to the push rod 41.

[0210] Specifically, Figure 3 , Figure 5 and Figure 6 As shown, the connecting rod mechanism 61 includes a connecting rod 62, which is connected to and acts on the push rod 41. The cooking appliance 100 is configured such that when the reversing assembly 60 is in a sealing working state, the connecting rod 62 is located at a first connecting rod position, so that the push rod 41 is located at a blocking position; when the reversing assembly 60 is in a ventilation working state, the connecting rod 62 is located at a second connecting rod position, so that the push rod 41 is located at an open position. The reversing assembly 60 drives the connecting rod 62 to move in a third geometric dimension, that is, the reversing assembly 60 drives the connecting rod 62 to move between the first connecting rod position and the second connecting rod position. As described above, the reversing assembly 60 drives the valve core 56 to move in the first geometric dimension. Preferably, when the cover body 10 is in a state of covering the pot body 30, the angle between the projection lines of the first geometric dimension and the third geometric dimension on the horizontal plane is 0 to 180 degrees. More preferably, when the cover body 10 is in a state of covering the pot body 30, the angle between the projection lines of the first geometric dimension and the third geometric dimension on the horizontal plane is 0 to 120 degrees. Such an arrangement allows the reversing assembly 60 to be installed compactly and enables the linkage response to be fast and accurate.

[0211] More specifically, the connecting rod 62 is configured to be rotatable around a connecting rod rotation axis, wherein the connecting rod rotation axis extends in a horizontal direction. For example, the connecting rod 62 is mounted to the lining cover 12 via a horizontal second pin shaft 66, and the connecting rod 62 is rotatable relative to the lining cover 12 around the second pin shaft 66, that is, the axis of the second pin shaft 66 is the connecting rod rotation axis. The connecting rod 62 has a connecting rod first end 63 and a connecting rod second end 64 that are oppositely arranged, wherein the connecting rod second end 64 is connected to and acts on the push rod sleeve 42. The intermediate power transmission device 70 changes the position of the connecting rod first end 63 in the vertical direction to rotate the connecting rod 62, thereby changing the position of the connecting rod second end 64 in the vertical direction.

[0212] The power supply device 80 acts on the intermediate power transmission device 70 to move the intermediate power transmission device 70 relative to the cover body 10 so that the transmission connecting rod 62 of the intermediate power transmission device 70 switches between the first connecting rod position and the second connecting rod position, thereby making the push rod 41 located in the blocking position or the open position.

[0213] The cooking appliance 100 is constructed as follows: when the reversing assembly 60 is in the sealing working state, the relatively protruding portion of the first transmission surface 79 of the intermediate power transmission device 70 abuts against the valve core 56, so that it is in the first ventilation position; the higher end 71B of the second transmission surface supports the first end 63 of the connecting rod, so that the second end 64 of the connecting rod is located at a relatively low position, driving the push rod 41 to be located at a relatively low blocking position; the air pump 95 evacuates air from the cooking space 32, and the cooking space 32 is in the second air pressure state. When the intermediate power transmission device 70 is in the ventilation working state, the non-protruding portion of the first transmission surface 79 abuts against the valve core 56, so that it is in the second ventilation position; the lower end 71A of the second transmission surface supports the first end 63 of the connecting rod, so that the second end 64 of the connecting rod is located at a relatively high position, so that the push rod 41 is located at a relatively high open position.

[0214] like Fig.11 and Fig.12 As shown, preferably, the power supply device 80 is configured as a motor 81. A motor mounting portion 82 is provided on the motor 81, and the motor 81 is installed in the cover body 10 through the motor mounting portion 82. It can be understood that the motor 81 is electrically connected to the control device and works under the control of the control device.

[0215] Preferably, the transmission body 70A of the intermediate power transmission device 70 includes a transmission part 72, a protrusion 73 and a bevel portion 74. The transmission part 72 is configured to be rotatable around a rotation axis, and at least a portion of the outer peripheral surface of the transmission part 72 is configured to be arc-shaped, and the rotation axis passes through the center of the arc. The protrusion 73 is connected to the arc-shaped circumferential surface of the transmission part 72 and protrudes outward in the radial direction of the arc. The bevel portion 74 is connected to the transmission part 72, and the bevel portion 74 is provided with a second transmission surface 71. Among them, the outer peripheral surface of the protrusion 73 and the portion of the arc-shaped circumferential surface of the transmission part 72 that is circumferentially adjacent to the protrusion 73 constitute a first transmission surface 79. The transmission part 72, the protrusion 73 and the bevel portion 74 can be formed integrally, so that the transmission body 70A is a single component.

[0216] Specifically, the transmission part 72 is connected to the output shaft of the motor 81 and can rotate under the drive of the motor 81. The transmission part 72 is generally configured as a cylinder. The rotation axis of the transmission part 72 extends in the vertical direction. The rotation axis of the transmission part 72 is also the central axis of its cylinder. Fig.12As shown, the circumferential surface of the transmission part 72 (i.e., the circumferential surface of its cylinder) includes a first circumferential surface 75, a second circumferential surface 76, and a third circumferential surface 77 arranged in sequence along the circumferential direction. The protrusion 73 is arranged to the second circumferential surface 76 and protrudes outwardly in the radial direction of the cylinder. It can be understood that the radial dimension of the transmission body 70A at the protrusion 73 is greater than the radial dimension at the first circumferential surface 75. The inclined portion 74 is arranged to the third circumferential surface 77. Optionally, the inclined portion protrudes outwardly in the radial direction of the cylinder. Preferably, the axial end surface of the inclined portion 74 is configured as the second transmission surface 71.

[0217] When the outer peripheral surface 73A of the protrusion contacts the valve core 56, the valve core 56 is located at the first ventilation position relative to the valve body 55, and the higher end 71B of the second transmission surface 71 supports the first end 63 of the connecting rod. When the first circumferential surface 75 contacts the valve core 56, the valve core 56 is located at the second ventilation position relative to the valve body 55, and the lower end 71A of the second transmission surface 71 supports the first end 63 of the connecting rod.

[0218] exist Fig.12 In the first embodiment shown, the lower end 71A of the second transmission surface 71 is close to the protrusion 73, and the higher end 71B of the second transmission surface 71 is close to the first circumferential surface 75. Fig.12 It can be clearly seen that the lower end 71A of the second transmission surface 71 is circumferentially spaced about 180 degrees from the first circumferential surface 75, and the upper end 71B of the second transmission surface 71 is circumferentially spaced about 180 degrees from the protrusion 73. The motor 81 drives the transmission part 72 to rotate, wherein, when the intermediate power transmission device 70 is in the ventilation working state, that is, when the transmission part 72 is at the ventilation working angle, as shown in FIG. Fig.13 As shown, the first circumferential surface 75 contacts the valve core 56, so that the valve core 56 extends out of the valve inner cavity 55A, and at the same time, the lower end 71A of the second transmission surface 71 supports the first end 63 of the connecting rod; when the reversing assembly 60 is in a sealing working state, that is, when the transmission part 72 is at a sealing working angle (relative to the ventilation working angle, the transmission part 72 rotates counterclockwise by about 90-120 degrees), as shown in FIG. Fig.14 As shown, the protrusion 73 contacts the valve core 56 and pushes the valve core 56 into the valve inner cavity 55A, while the higher end 71B of the second transmission surface 71 supports the connecting rod first end 63 .

[0219] In the preferred embodiment of the present embodiment, the first end 63 of the connecting rod is provided with a first pin 65, and the second transmission surface 71 supports the first end 63 of the connecting rod by supporting the first pin 65. That is, the first pin 65 is always located on the second transmission surface 71, and when the transmission body 70A rotates, the first pin 65 contacts different parts of the second transmission surface 71, so that the height (position in the D2 direction) of the first pin 65 changes, thereby changing the height of the first end 63 of the connecting rod. The first pin 65 is rotatable relative to the connecting rod 62, so there is rolling friction between the first pin 65 and the second transmission surface, and the friction force is small.

[0220] It is understandable that the connection mode between the four vents of the reversing valve 50 and the air pump inlet 93, the air pump outlet 94, the steam valve 90 and the air inlet and outlet 18 is adjustable. For example, in an embodiment not shown, the first vent 51 of the reversing valve 50 can be connected to the air pump inlet 93, and the second vent 52 of the reversing valve 50 can be connected to the air pump outlet 94. At this time, the lower end 71A and the higher end 71B of the second transmission surface 71 are swapped, and the first and second air pressure states of the cooking space 32 can also be achieved.

[0221] Alternatively, the third air vent 53 of the reversing valve 50 is connected to the steam valve 90, and the fourth air vent 54 of the reversing valve 50 is connected to the air inlet and outlet 18. At this time, the low end 71A and the high end 71B of the second transmission surface 71 are swapped to achieve the first and second air pressure states of the cooking space 32.

[0222] Alternatively, the first air vent 51 of the reversing valve 50 is connected to the air pump inlet 93, the second air vent 52 of the reversing valve 50 is connected to the air pump outlet 94, the third air vent 53 of the reversing valve 50 is connected to the steam valve 90, and the fourth air vent 54 of the reversing valve 50 is connected to the air inlet and outlet 18. The rotating main body 70A maintains the structure in the illustrated example, and the first and second air pressure states of the cooking space 32 can also be achieved.

[0223] The cooking process of the cooking appliance 100 includes the following steps in sequence:

[0224] The water absorption process is used to soak the solid food in warm water to absorb water before the food in the pot 31 reaches boiling temperature;

[0225] The heating process is used to make the food in the pot 31 reach boiling temperature;

[0226] The boiling maintenance step is used to maintain the food in the pot 31 at a boiling temperature;

[0227] The rice stewing process is used to heat the food in the inner pot 31 for a short time when there is almost no free water in the inner pot 31;

[0228] The heat preservation process is used to keep the food in the pot 31 warm after the food is cooked.

[0229] Preferably, in the water absorption process, the cooking appliance 100 is configured to complete the following steps:

[0230] S21, the reversing assembly 60 is in a sealed working state, and the air pump 95 is operated for a first water absorption preset working time t21, so as to extract air from the cooking space 32 so as to generate a negative pressure in the cooking space 32, and the cooking space 32 is in a second air pressure state;

[0231] S22, putting the reversing assembly 60 in a ventilation working state, stopping the air pump 95 from working for a second water absorption preset working time t22, so that the cooking space 32 returns to normal pressure and is in a first air pressure state;

[0232] S23, repeating steps S21 and S22 until the preset water absorption time is reached or the temperature value sensed by the temperature sensor (lower temperature sensor or top temperature sensor) reaches the preset water absorption temperature T2.

[0233] In the water absorption process, the cooking space 32 is repeatedly evacuated, and the pressure inside the cooking cavity changes rapidly, which is conducive to the rolling of the rice and the rapid absorption of water, and makes the rice grains heated more evenly, more conducive to the gelatinization of the rice grains, and more conducive to the rice being cooked thoroughly, so that the rice expands more. Microscopically, it can be considered that the change in air pressure can cause the rice grains to move relative to each other or collide with each other, so that gaps are formed between the rice grains, making the rice more fluffy.

[0234] Preferably, the first water absorption preset working time t21 is 20 to 120 seconds. More preferably, the first water absorption preset working time t21 is 20 to 60 seconds. Preferably, in step S21, after the air pump 95 works for the first water absorption preset working time t21, the negative pressure of the cooking space 32 is -5 to -20 kPa (that is, 5 to 20 kPa lower than the ambient pressure). Preferably, the second water absorption preset working time t22 is 20 to 120 seconds. More preferably, the second water absorption preset working time t22 is 20 to 60 seconds. Preferably, the preset water absorption temperature T2 does not exceed 90°C. More preferably, the preset water absorption temperature T2 is 30 to 90°C.

[0235] Preferably, in the heating process and / or the boiling maintenance process, the cooking appliance 100 is configured to put the reversing assembly 60 in a ventilation working state and operate the air pump 95 to blow cold air into the cooking space 32, thereby preventing overflow.

[0236] Preferably, in the rice cooking process, the cooking device 100 is configured to complete the following steps:

[0237] S41, putting the reversing assembly 60 in a sealed working state, and making the air pump 95 work for the first preset rice-cooking working time t41, so as to extract air from the cooking space 32 so as to generate a negative pressure in the cooking space 32;

[0238] S42, putting the reversing assembly 60 in a ventilation working state, and making the air pump 95 work for the second preset rice-cooking working time t42, so as to blow air into the cooking space 32 to reduce the temperature of the cooking space 32;

[0239] S43, repeat steps S41 and S42 until the preset rice stewing time t4 is reached or the temperature value sensed by the temperature sensor (lower temperature sensor or top temperature sensor) reaches the preset rice stewing temperature T4.

[0240] During the cooking process, the heat inside the inner pot 31 is removed by exhausting air, and cold air is further blown into the inner pot 31 by blowing air, while hot air is discharged. Due to the different thermal conductivity coefficients of the rice and the inner pot 31, a temperature difference can be formed between the rice and the inner pot 31. The rapidly changing temperature difference can cause the rice to expand and contract, so that the rice and the inner pot 31 can form a critical separation or detachment state, which can improve the problem of sticking to the pot. Therefore, the inner pot 31 can be constructed without a non-stick coating on the inner surface.

[0241] Preferably, the first rice stewing preset working time t41 is 20 to 120 seconds. More preferably, the first rice stewing preset working time t41 is 20 to 60 seconds. Preferably, in step S41, after the air pump works for the first rice stewing preset working time t41, the negative pressure of the cooking space is -5 to -20 kPa. Preferably, the second rice stewing preset working time t42 is 20 to 120 seconds. More preferably, the second rice stewing preset working time t42 is 20 to 60 seconds. Preferably, the preset rice stewing temperature T4 is 90°C to 103°C. Preferably, the preset rice stewing time t4 is 4 to 10 minutes.

[0242] In the heat preservation process, preferably, the cooking appliance 100 is configured to complete the following steps:

[0243] S51, putting the reversing assembly 60 in a sealed working state, and making the air pump 95 work for the first heat preservation preset working time t51, so as to extract air from the cooking space 32 so as to generate negative pressure in the cooking space 32;

[0244] S52, putting the reversing assembly 60 in a ventilation working state, and making the air pump 95 work for the second heat preservation preset working time t52, so as to blow air into the cooking space 32 to reduce the temperature of the cooking space 32;

[0245] S53, repeating steps S51 and S52 until the temperature value sensed by the temperature sensor is less than or equal to the preset insulation temperature T5.

[0246] In the heat preservation process, similar to the cooking process, the heat inside the pot 31 is taken away by exhausting air, and the cold air is further blown into the pot 31 by blowing air, while the hot air is discharged. Due to the different thermal conductivity coefficients of the rice and the pot 31, a temperature difference can be formed between the rice and the pot 31. The rapidly changing temperature difference can cause the rice to expand and contract, so that the rice and the pot 31 can form a critical separation or detachment state, which can improve the problem of sticking to the pot. Therefore, the pot 31 can be constructed without a non-stick coating on the inner surface.

[0247] Preferably, the first keep warm preset working time t51 is 20 to 120 seconds. More preferably, the first keep warm preset working time t51 is 20 to 60 seconds. Preferably, in step S51, after the air pump 95 works for the first keep warm preset working time t51, the negative pressure of the cooking space 32 is -5 to -20 kPa. Preferably, the second keep warm preset working time t52 is 20 to 120 seconds. More preferably, the second keep warm preset working time t52 is 20 to 60 seconds. Preferably, the preset keep warm temperature T5 is 65°C to 75°C.

[0248] Preferably, in the heat preservation process, the cooking appliance 100 is configured to make the reversing assembly 60 in a sealed working state, and to make the air pump 95 work to form a negative pressure in the cooking space 32. That is, in the heat preservation process, the cooking space 32 is at a negative pressure, which is conducive to keeping the rice fresh. The cooking appliance 100 can start the air pump 95 at a fixed time according to the sealing performance of the product, and intermittently exhaust air to maintain the negative pressure in the cooking space 32.

[0249] In the heat preservation process, the work of steps S51, S52 and S53 and the work of simply pumping negative pressure can be performed alone or both. In the case of performing both, the work of steps S51, S52 and S53 can be performed first, and the work of simply pumping negative pressure can be performed after the temperature sensed by the temperature sensor reaches the preset heat preservation temperature T5.

[0250] like Fig.15 and Fig.16As shown, compared with the first embodiment, in the second embodiment according to the present application, the power supply device 90, the transmission body 70A and the connecting rod mechanism 61 of the reversing assembly 160 are the same as those in the first embodiment, and the reversing assembly 160 also includes a first gear 188 and a second gear 189. Among them, the first gear 188 is coaxially connected to the output shaft of the motor 81 and can rotate under the drive of the motor 81, and its rotation axis extends along the second direction D2. The second gear 189 is meshed with the first gear 188 and is coaxially connected to the transmission body 70A (specifically the transmission part 72). Therefore, after the motor 81 works, it will drive the first gear 188 to rotate, the first gear 188 drives the second gear 189 to rotate, and the second gear 189 drives the transmission body 70A (specifically the transmission part 72) to rotate. Among them, the diameter of the first gear 188 is greater than the diameter of the second gear 189, and / or the number of teeth of the first gear 188 is greater than the number of teeth of the second gear 189.

[0251] For example, Z1 is the number of teeth of the first gear 188, and Z2 is the number of teeth of the second gear 189; d1 is the diameter of the first gear 188, and d2 is the diameter of the second gear 189; n1 is the rotation speed of the first gear 188, and n2 is the rotation speed of the second gear 189. Transmission ratio i=Z2 / Z1=d2 / d1=n1 / n2. It can be seen from the principle of gear transmission that the larger the gear transmission ratio, the greater the torque, and the smaller the gear transmission ratio, the smaller the torque. In the second embodiment, Z1 is greater than Z2, d1 is greater than d2, and therefore i is less than 1. The smaller the transmission ratio, the smaller the torque of the motor 81, and therefore the lower the cost of the motor 81.

[0252] For parts not introduced in the second embodiment, refer to the description of the first embodiment.

[0253] exist Figures 17 to 20 In the third embodiment shown, the intermediate power transmission device 270 is configured to be movable relative to the cover body 10 along the first direction D1 under the drive of the power providing device 280. The intermediate power transmission device includes a transmission body 270A and a connecting rod mechanism 61, wherein the transmission body 270A is provided with a connecting portion 273E and a second transmission surface 271. The connecting portion 273E is used to connect to and act on the airflow reversing device 50, specifically to move along the first direction D1 to push the valve core 56. The second transmission surface 271 is used to connect to and act on the connecting port opening and closing assembly 40. Among them, the second transmission surface 271 serves as an action surface acting on the connecting port opening and closing assembly 40, and similar to the first embodiment, it acts on the connecting port opening and closing assembly 40 by acting on the connecting rod mechanism 61. The structure and function of the connecting rod mechanism 61 are not repeated here.

[0254] The second transmission surface 271 has a second transmission surface first end 271A and a second transmission surface second end 271B which are oppositely arranged along the first direction D1, and the position of the second transmission surface first end 271A along the second direction D2 is different from the position of the second transmission surface second end 271B along the second direction D2. Thus, the second transmission surface first end 271A and the second transmission surface second end 271B have a distance difference in the vertical direction and the horizontal direction. A second transmission surface middle portion 271C is arranged between the second transmission surface first end 271A and the second transmission surface second end, and the position of the second transmission surface middle portion 271C along the second direction D2 varies with the circumferential position of the second transmission surface middle portion 271C. The high end 271B and the low end 271A of the second transmission surface 271 are smoothly connected by the second transmission surface middle portion 271C. In some feasible embodiments, the second transmission surface 271 can be configured as a combination of one or more of an inclined surface, a curved surface, a stepped surface, etc. The second transmission surface 271 may be an outer surface of the intermediate power transmission device 270 , or an inner surface (such as an inner wall of a slide groove).

[0255] The cooking appliance 100 is constructed as follows: when the reversing assembly 260 is in the sealing working state, the connecting portion 273E of the intermediate power transmission device 270 approaches the reversing valve 50 to push the valve core 56 and compress the valve core spring 57, so that the valve core 56 is in the first ventilation position; the higher end 271B of the second transmission surface 271 supports the first end 63 of the connecting rod, so that the second end 64 of the connecting rod is relatively located at a lower position, driving the push rod 41 to be located at a relatively lower blocking position; the air pump 95 evacuates the cooking space 32, and the cooking space 32 is in the second air pressure state. When the intermediate power transmission device 270 is in the ventilation working state, the connecting portion 273E is away from the reversing valve 50, the valve core 56 extends from the valve inner cavity 55A to release the valve core spring 57, so that the valve core 56 is in the second ventilation position; the lower end 71A of the second transmission surface 271 supports the first end 63 of the connecting rod, so that the second end 64 of the connecting rod is relatively located at a higher position, so that the push rod 41 is located at a relatively higher open position.

[0256] like Fig.19 and Fig. 20As shown, specifically, the intermediate power transmission device 270 includes a slider seat 272 and a slider 273. The slider seat 272 is fixed to the liner 12 through a slider seat mounting portion 272A. The slider seat 272 includes a slider seat guide portion 277, which extends along the first direction D1. The slider 273 is used to move along the first direction D1 under the drive of the power supply device 280. The slider 273 includes a slider guide portion 278, which is connected to the slider seat guide portion 277 and is movable relative to the slider seat guide portion 277 along the first direction D1. The slider 273 is provided with a connecting portion 273E and a second transmission surface 271. In this embodiment, the upper surface of the slider 273 is configured as the second transmission surface 271. Among them, the lower end 271A of the second transmission surface 271 is close to the valve core 56. The end of the slider 273 used to approach the reversing valve 50 becomes the connecting portion 273E.

[0257] The intermediate power transmission device 270 further includes a biasing element 274, which is used to apply a biasing force to the slider 273 along the first direction D1, wherein the first direction D1 includes two opposite directions, and the power supply device 280 and the biasing element 274 respectively apply forces to the slider 273 along the two opposite directions of the first direction D1. The biasing element 274 is, for example, an elastic return element, which is arranged between the slider 273 and the slider seat 272, and the elastic return element is configured to be elastically deformable along the first direction D1. Specifically, the biasing element 274 adopts a slider spring 274. The slider spring 274 extends along the first direction D1. One end of the slider spring 274 is connected to one end of the power supply device 280 of the slider 273, and the other end of the slider spring 274 is connected to one end of the slider seat 272 close to the reversing valve 50. When the reversing assembly 260 is in a sealing working state, the slider spring 274 is compressed. When the power supply device 280 is not working, the slider 273 returns to its original position under the action of the slider spring 274, that is, the reversing assembly 260 is in a ventilation working state.

[0258] The power supply device 280 is configured as a push-pull electromagnet 281, which is movable along the first direction D1 relative to the cover body 10. It can be understood that the push-pull electromagnet 281 is electrically connected to the control device to work under the control of the control device. The slider 273 is located between the valve core 56 and the push-pull electromagnet 281. When the push-pull electromagnet 281 is working, the push-pull electromagnet 281 moves along the first direction D1 toward the slider seat 272 (such as Fig.18As shown, it moves to the left side in the figure) and pushes the slider 273, so that the slider 273 pushes the valve core 56 along the first direction D1 (for example, moves to the left side in the figure), and makes the second end 271B of the second transmission surface 271, which is higher, support the first end 63 of the connecting rod, that is, the reversing component 260 is in a sealed working state; when the push-pull electromagnet 281 is not working, the push-pull electromagnet 281 moves away from the slider seat 272 along the first direction D1 (as shown in the figure), and the second end 271B of the second transmission surface 271 supports ... and the reversing component 260 is in a sealed working state; when the push-pull electromagnet 281 is not working, the push-pull electromagnet 281 moves away from the slider seat 272 along the first direction D1 (as shown in the figure), and the second end 271B of the second transmission surface 271 supports the first end 63 of the connecting rod, and the reversing component 260 is in a sealed working Fig.17 As shown, it moves to the right side in the figure), the valve core 56 moves to the second ventilation position under the action of the valve core spring 57, and pushes the slider 273 to move along the first direction D1 toward the push-pull electromagnet 281 (moving to the right side in the figure), so that the lower end 271A of the second transmission surface 271 supports the first end 63 of the connecting rod, that is, the reversing assembly 260 is in the ventilation working state.

[0259] In some embodiments of the present application, the slider 273 can be installed inside the slider seat 272 , that is, the slider seat 272 is a hollow structure having an inner cavity 275 for accommodating the slider 273 , that is, the slider 273 is movable in the slider seat 272 along the first direction D1 .

[0260] like Fig.19 and Fig. 20 As shown, the slider seat 272 is generally constructed as a box-shaped body surrounded on four sides, and has two slider seat side walls 276A, a slider seat end wall 276B and a slider seat bottom wall 276C. The side walls 276A, the end wall 276B and the bottom wall 276C surround the slider seat inner cavity 275. The slider spring 274 is accommodated in the slider seat inner cavity 275. The slider 273 is provided with a slider protrusion 279 protruding downward at one end away from the reversing valve 50. The slider protrusion 279 is also accommodated in the slider seat inner cavity 275, so that it can be connected to the slider spring 274. On the side away from the slider seat bottom wall 276C along the second direction D2, the slider seat side wall 276A is higher than the slider seat side wall 276B, so that the two slider seat side walls 276A sandwich the slider 273. The slider seat side wall 276A is provided with a slide groove 277 extending in the first direction D1, and the slider 273 is provided with a support pin 278 extending in the horizontal direction and perpendicular to the first direction D1, and the support pin 278 is accommodated in the slide groove 277 and is movable relative to the slide groove 277 along the first direction D1. Therefore, the slide groove 277 supports the slider 273 through the support pin 278, and makes the other parts of the slider 273 except the slider protrusion 279 all located above the slider seat side wall 276B, so that the slider seat 272 can stably support the slider 273, and the slider 273 can move relative to the slider seat 272 along the first direction D1.

[0261] It can be understood that in the third embodiment, the first air vent 51 of the reversing valve 50 can also be connected to the air pump inlet 93, the second air vent 52 of the reversing valve 50 can be connected to the air pump outlet 94, and the low end 271A and the high end 271B of the second transmission surface 271 can be swapped, so as to achieve negative pressure and normal pressure states of the cooking space 32.

[0262] It can be understood that in the third embodiment, the third air vent 53 of the reversing valve 50 can also be connected to the steam valve 90, and the fourth air vent 54 of the reversing valve 50 can be connected to the air inlet and outlet 18. At the same time, the low end 271A and the high end 271B of the second transmission surface 271 are swapped, which will also realize the first air pressure state and the second air pressure state of the cooking space 32.

[0263] It can be understood that in the third embodiment, the first air vent 51 of the reversing valve 50 can also be connected to the air pump inlet 93, and the second air vent 52 of the reversing valve 50 can be connected to the air pump outlet 94. At the same time, the third air vent 53 of the reversing valve 50 can be connected to the steam valve 90, and the fourth air vent 54 of the reversing valve 50 can be connected to the air inlet and outlet 18, which can also achieve the first air pressure state and the second air pressure state of the cooking space 32.

[0264] For parts not introduced in the third embodiment, refer to the description of the first embodiment.

[0265] exist Figures 21 to 26 In the fourth embodiment shown, the intermediate power transmission device 370 is configured to be movable relative to the cover body 10 along the second direction D2 under the drive of the power supply device 380. The intermediate power transmission device 370 includes a transmission body 370A and a connecting rod mechanism 61, wherein the transmission body 370A is provided with a connecting portion 376 and a first transmission surface 379, the connecting portion 376 is used to connect to and act on the communication port opening and closing assembly 40, and the first transmission surface 379 is used to connect to and act on the airflow reversing device 50. The first transmission surface 379 has a first transmission surface first end 379A and a first transmission surface second end 379B which are oppositely arranged along the second direction D2. The position of the first transmission surface first end 379A along the first direction D1 is different from the position of the first transmission surface second end 379B along the first direction D1, or in other words, the position of the first transmission surface first end 379A along the second direction D2 is different from the position of the first transmission surface second end 379B along the second direction D2, that is, the first transmission surface first end 379A and the first transmission surface second end 379B have a height difference. The structure and function of the connecting rod mechanism 61 are the same as those in the first embodiment, and will not be repeated here.

[0266] The cooking appliance 100 is constructed as follows: when the intermediate power transmission device 370 is in the sealing working state, the first transmission surface 379 acts on the valve core 56 to compress the valve core spring 57, so that the valve core 56 is in the first ventilation position; the connecting portion 376 supports the first end 63 of the connecting rod to a higher position, so that the second end 64 of the connecting rod is relatively located at a lower position, driving the push rod 41 to be located at a relatively lower blocking position, and the air pump 95 evacuates the cooking space 32, so that the cooking space 32 is in the second air pressure state. When the intermediate power transmission device 370 is in the ventilation working state, the first transmission surface 379 acts on the valve core 56 to release the valve core spring 57, so that the valve core 56 is in the second ventilation position; the connecting portion supports the first end 63 of the connecting rod to a lower position, so that the second end 64 of the connecting rod is relatively located at a higher position, so that the push rod 41 is located at a relatively higher open position.

[0267] Specifically, the reversing assembly 360 includes a first reversing portion 361 and a second reversing portion 362. The first reversing portion 361 and the second reversing portion 362 are arranged along the second direction D2. The first reversing portion 361 is fixed to the cover body 10 (for example, the lining cover 12), and the second reversing portion 362 is configured to be movable relative to the first reversing portion along the second direction. The power supply device 380 is configured as an electromagnet 377. The electromagnet 377 is installed to one of the first reversing portion 361 and the second reversing portion 362, and the other of the first reversing portion 361 and the second reversing portion 362 contains a magnetic material. The intermediate power transmission device 370 is provided at the second reversing portion 362.

[0268] For example, the first reversing portion 361 is located above the second reversing portion 362. When the electromagnet 377 is energized, the first reversing portion 361 and the second reversing portion 362 attract each other, so that the intermediate power transmission device 370 moves upward following the second reversing portion 362, thereby raising the first end 63 of the connecting rod (such as Fig. 22 When the electromagnet 377 is powered off, the intermediate power transmission device 370 can fall back to its original position by its own gravity (as shown in FIG. Fig.21 As shown). It can be understood that the electromagnet 377 is electrically connected to the control device to work under the control of the control device.

[0269] like Fig.21 and Fig. 22 As shown, the transmission body 370A includes a connecting pin 376 as a connecting portion 376 and an inclined portion 372. The connecting pin 376 is connected to the first end 63 of the connecting rod. The inclined portion 372 includes a first transmission surface 379 that is inclined relative to the horizontal plane, the second direction D2, and the first direction D1. The first transmission surface 379 is used to abut the valve core 56. Optionally, the first transmission surface 379 can be set below the valve core 56. Fig. 22As shown, when the intermediate power transmission device 370 is raised (the reversing assembly 360 is in a sealed working state), the lower end 379A of the first transmission surface 379 acts on the valve core 56 to move the valve core 56 to the first ventilation position. Fig.21 As shown, when the intermediate power transmission device 370 is lowered (the reversing assembly 360 is in the ventilation working state), the high end 379B of the first transmission surface 79 contacts the valve core 56, and the valve core 56 moves to the second ventilation position.

[0270] As a preferred implementation in this embodiment, Fig.21 and Fig. 22 As shown, the first switching part 361 includes a magnetic material, and the second switching part 361 includes an electromagnet 377. Fig.23 and Fig.24 As shown, the first reversing part 361 includes an iron block 381, an iron block bracket 382 and an iron block bracket cover 383. The iron block 381 is used to attract the electromagnet 377. The iron block bracket 382 is used to carry the iron block 381. The iron block bracket cover 383 is fixed to the lining cover 12 through a bracket mounting portion 384, and is used to mount the iron block bracket 382. For example, the iron block bracket 382 and the iron block bracket cover 383 both include a cylindrical structure, and the two can be connected to each other through a threaded pair, so that the iron block 381 is firmly mounted on the lining cover 12.

[0271] Specifically, Fig.25 and Fig.26 As shown, the transmission body 370A includes a reversing mechanism body 371, a connecting pin 376 and an inclined portion 372. The reversing mechanism body 371 is provided with a main body groove 373. The electromagnet 377 is arranged in the main body groove 373 and is connected to the reversing mechanism body 371 by a bolt 374. The electromagnet 377 obtains power through a plug 377A. The connecting pin 376 and the inclined portion 372 are both arranged to the reversing mechanism body 371, for example, the two are arranged to the opposite sides of the reversing mechanism body 371. The inclined portion 372 is generally configured as a triangular prism, and its axis extends in the horizontal direction. One side of the triangular prism is connected to the reversing mechanism body 371, and of the other two side surfaces, the side obliquely upward is used as a first transmission surface 379. The inclined portion 372 also includes a side obliquely downward 375, and the side surface 375 has a high end 375B and a low end 375A.

[0272] Preferably, one of the intermediate power transmission device 370 and the cover body 10 is provided with a slide rail extending along the second direction D2, and the other of the intermediate power transmission device 370 and the cover body 10 is provided with a slide groove extending along the second direction D2, and the slide rail is arranged in the slide groove and is movable relative to the slide groove along the second direction D2. Fig.25As shown, the intermediate power transmission device 370 is provided with a slide rail 378, and the slide rail 378 extends along the second direction D2. The lining cover 12 is provided with a slide groove (not shown) matching the slide rail 378, which is used to accommodate the slide rail 378. Therefore, under the guidance of the slide rail 378 and the slide groove, the intermediate power transmission device 370 can stably move up and down along the second direction D2 relative to the lining cover 12.

[0273] It can be understood that in the fourth embodiment, the first air vent 51 of the reversing valve 50 is connected to the air inlet 93 of the air pump, and the second air vent 52 of the reversing valve 50 is connected to the air outlet 94 of the air pump. At this time, the downward slanted side 375 of the inclined portion 372 is used as the first transmission surface, and the two air pressure states of the first air pressure state and the second air pressure state of the cooking space 32 can also be achieved.

[0274] It can be understood that in the fourth embodiment, the third air vent 53 of the reversing valve 50 can also be connected to the steam valve 90, and the fourth air vent 54 of the reversing valve 50 can be connected to the air inlet and outlet 18. At the same time, the downwardly inclined side surface 375 of the inclined portion 372 is used as the first transmission surface, which can also realize the first air pressure state and the second air pressure state of the cooking space 32.

[0275] It can be understood that in the fourth embodiment, the first air vent 51 of the reversing valve 50 can also be connected to the air pump inlet 93, and the second air vent 52 of the reversing valve 50 can be connected to the air pump outlet 94. At the same time, the third air vent 53 of the reversing valve 50 can be connected to the steam valve 90, and the fourth air vent 54 of the reversing valve 50 can be connected to the air inlet and outlet 18, which can also achieve the first air pressure state and the second air pressure state of the cooking space 32.

[0276] It is understood that in the fourth embodiment, when the electromagnet 377 is energized, the intermediate power transmission device 370 moves downward; when the electromagnet 377 is de-energized, the intermediate power transmission device 370 rises under the action of a return element (e.g., a spring extending along the second direction D2). At the same time, it is understood that the inclination direction of the first transmission surface needs to be matched with the connection mode of the four vents of the reversing valve 50.

[0277] For parts not introduced in the fourth embodiment, refer to the description of the first embodiment.

[0278] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0279] See below Figures 27 to 33 , and combined with Figures 1 to 26The example shown is a detailed description of a cooking utensil provided according to yet another embodiment of the present application.

[0280] The cooking utensil according to the present application may include a pot body 30, a cover body 10, a communication port opening and closing assembly 40, an air path structure 85, and an optoelectronic display assembly 500. The pot body 30 includes a pot 31 for accommodating food and a heating device 33. The cover body 10 is openably arranged on the pot body 30 to form a cooking space 32 between the cover body 10 and the pot 31. The cover body 10 is provided with an inner vent for connecting the cooking space 32 and a communication port 17 for connecting the cooking space 32 with the outside atmosphere. The communication port opening and closing assembly 40 is arranged on the cover body 10, and is used to open or block the communication port 17. The air path structure 85 is connected to the inner vent 18. The air path structure 85 includes an airflow generating device 95. The airflow generating device 95 is arranged to be able to evacuate or blow air to the cooking space 32, thereby changing the pressure in the cooking space 32. The optoelectronic display assembly 500 is arranged outside the cooking utensil. The outside of the cooking utensil here can be understood as the part of the cooking utensil facing the outside. The photoelectric display assembly 500 has a ventilation chamber 504 or a ventilation chamber 504 is formed between the photoelectric display assembly 500 and the cover body 10. The ventilation chamber 504 is connected to the gas path structure 85. The photoelectric display assembly 500 includes an indicator light 501. The photoelectric display assembly 500 is configured to display the pressure change in the cooking space 32 through the light state of the indicator light 501. The light state of the indicator light 501 here includes a lit state and an off state. Among them, the lit state includes the light intensity or brightness of the light.

[0281] According to the cooking utensil of the present application, a photoelectric display component 500 is added to the cover body 10, and the photoelectric display component 500 is connected to the air path structure 85. When the air path structure 85 draws air or blows air into the cooking space 32, the airflow passes through the ventilation chamber 504, and the change in the light state of the indicator light 501 is used to display the pressure change in the cooking space 32, thereby enabling the user to sense or experience the process of pressure change in the cooking space 32, and the user can sense and monitor the pressure change in the cooking space 32, which helps to improve the user experience.

[0282] It can be understood that the cooking utensil here can be a negative pressure cooker, a pressure cooker, etc. The cooking utensil can also be the cooking utensil in any of the above embodiments.

[0283] See also Figures 27 to 33In one example, the indicator light 501 is located on the side of the ventilation chamber 504 facing the outside. The optoelectronic display assembly 500 may include a magnetic member 510, a power generation coil 511, and a unidirectional conductive member. The magnetic member 510 has an N pole and an S pole with different magnetic properties. The magnetic member 510 is rotatably connected to the cooking utensil around a rotation axis AX. The rotation axis AX is located between the N pole and the S pole. The magnetic member 510 is configured to rotate in response to pressure changes in the cooking space 32. The power generation coil 511 is wound around the outside of the magnetic member 510 in a circumferential direction centered on the rotation axis AX. Both ends of the power generation coil 511 are electrically connected to the indicator light 501 to form a conductive loop. The power generation coil 511 is configured to generate current when the magnetic member 510 rotates. When the magnetic member 510 rotates forward and reverse, the current generated by the power generation coil 511 flows in opposite directions. The unidirectional conductive member is connected in series to the conductive loop.

[0284] According to the present application, the indicator light 501 is arranged on the side of the ventilation chamber 504 facing the outside so as to be observed. When the magnetic member 510 rotates in response to the pressure change in the cooking space 32, the generating coil 511 generates current. If the current direction is the same as the conduction direction of the unidirectional conductive member, the indicator light 501 connected in series with the conductive circuit where the unidirectional conductive member is located lights up, otherwise it goes out. The user can directly observe the light state of the indicator light 501, and thus understand the pressure change in the cooking space 32 through the change in the light state of the indicator light 501.

[0285] For example, the unidirectional conductive element may be a diode. The magnetic element 510 may be a permanent magnet.

[0286] In addition, the optoelectronic display assembly 500 may further include an impeller 502. The impeller 502 is located in the ventilation chamber 504. The impeller 502 is rotatably connected to the cooking utensil around the rotation axis AX. The impeller 502 is transmission-connected to the magnetic member 510. The impeller 502 is configured to rotate in response to the pressure change in the cooking space 32, so as to drive the magnetic member 510 to rotate.

[0287] According to the present application, by setting the impeller 502 in the ventilation chamber 504, when the air path structure 85 draws air or blows air into the cooking space 32, the airflow passes through the ventilation chamber 504 and drives the impeller 502 to rotate around the rotation axis AX. When the impeller 502 rotates accordingly in response to the pressure change in the cooking space 32, the magnetic part 510 rotates accordingly, thereby changing the luminous state of the indicator light 501, making it convenient for the user to directly observe the luminous state of the indicator light 501 from the outside, and then understand the pressure change in the cooking space 32 through the luminous state of the indicator light 501.

[0288] See also Figures 27 to 33In a further example, the optoelectronic display assembly 500 may further include a rotating shaft 505. The rotating shaft 505 is rotatably disposed on the cooking utensil around its own axis. One end of the rotating shaft 505 is located in the ventilation chamber 504. The other end of the rotating shaft 505 extends to the side of the ventilation chamber 504 facing the outside. The axis of the rotating shaft 505 coincides with the rotation axis AX. The rotating shaft 505 is fixedly connected to the magnetic member 510 and the impeller 502.

[0289] According to the present application, the optoelectronic display assembly 500 has a rotating shaft 505 that can be relative to the cooking utensil, and the two ends of the rotating shaft 505 are respectively fixed with the magnetic member 510 and the impeller 502, and the axis of the rotating shaft 505 coincides with the rotation axis AX. Therefore, when the impeller 502 rotates in response to the pressure change in the cooking space 32, the impeller 502 can rotate with the magnetic member 510 through the rotating shaft, so that the power generation coil 511 generates current, and then changes the light state of the indicator light 501, so that the user can understand the pressure change in the cooking space 32 according to the light state of the indicator light 501 observed from the outside.

[0290] Specifically, the rotating shaft 505 is mounted to the cover body 10 via a bearing 509 .

[0291] participate Figures 27 to 33 In one example, the indicator light 501 may be configured as a light emitting diode 501. The light emitting diode 501 may include a unidirectional conductive member.

[0292] According to the present application, by configuring the indicator light 501 as a light emitting diode 501, which itself has a unidirectional conduction characteristic, when the current generated by the power generation coil 511 is consistent with the conduction direction of the light emitting diode 501, the light emitting diode 501 is lit, and when the current generated by the power generation coil 511 is opposite to the conduction direction of the light emitting diode 501, the light emitting diode 501 is extinguished. During the process of the gas path structure 85 sucking or blowing air into the cooking space 32, the user can intuitively understand the pressure change in the cooking space 32 through the change in the light state of the light emitting diode 501.

[0293] Further, the indicator light 501 may include two light emitting diodes 501. The two light emitting diodes 501 are connected in parallel at two ends of the power generation coil, and the conduction directions of the two light emitting diodes 501 are opposite, so that the two light emitting diodes 501 do not emit light at the same time.

[0294] According to the present application, two LEDs 501 are provided, and the conduction directions of the two LEDs 501 are opposite. In this way, on the one hand, the pressure change in the cooking space 32 can be intuitively understood through the two LEDs 501, and on the other hand, if one of the two LEDs 501 is damaged, the other one will not be affected, which is also helpful for troubleshooting.

[0295] In the illustrated example, two light emitting diodes 501 may be mounted on a circuit board 512 and conductively connected.

[0296] In another example, the indicator light 501 may be configured as a light-emitting element capable of bidirectional conduction and emission.

[0297] According to the present application, since the optoelectronic display assembly 500 includes a unidirectional conductive member, even if the indicator light 501 is a bidirectional conductive light emitting element, the light emitting element emits light when the current is in the same direction as the unidirectional conductive member, and the light emitting element is extinguished when the current is in the opposite direction to the unidirectional conductive member. Therefore, the bidirectional conductive light emitting element can also be used to reflect the pressure change in the cooking space 32 when used in conjunction with the unidirectional conductive member.

[0298] Further, the optoelectronic display assembly 500 may include two indicator lights 501 and two unidirectional conductive members. The two indicator lights 501 are connected in parallel at both ends of the power generation coil 511. One of the two indicator lights 501 forms a first conductive loop with the power generation coil 511. The other of the two indicator lights 501 forms a second conductive loop with the power generation coil 511.

[0299] One of the two unidirectional conductive members is connected in series in the first conductive loop, and the other of the two unidirectional conductive members is connected in series in the second conductive loop, and the conduction directions of the two unidirectional conductive members are opposite.

[0300] According to the present application, by using two bidirectionally conductive indicator lights 501 in combination with two unidirectional conductive parts, the same role as two light-emitting diodes connected in parallel to the generating coil 511 can be achieved. On the one hand, the pressure changes in the cooking space 32 can be intuitively understood through the two indicator lights 501 respectively. On the other hand, when one of the two indicator lights 501 is damaged, it will not affect the operation of the other one, and it is also helpful for troubleshooting.

[0301] It is understood that in other examples not shown, the optoelectronic display assembly 500 may not include the above-mentioned unidirectional conductive member. For example, the airflow speed of the exhaust of the cooking appliance is slower than the airflow speed of the blowing. In this case, the airflow direction can be judged according to the performance of the current strength in the light intensity, so as to determine whether the cooking appliance is blowing or exhausting at this time. That is, when the cooking appliance is working in the exhaust state, the light of the indicator light remains dim for a long time. When the cooking appliance is working in the exhaust state, the light of the indicator light remains bright for a long time.

[0302] See also Figure 28 to Figure 32For example, the cover body 10 includes a surface cover 11 and a lining cover 12. The surface cover 11 is located on the side of the lining cover 12 away from the pot body 30. The optoelectronic display assembly 500 may also include a vent seat 503. The vent seat 503 is located between the surface cover 11 and the lining cover 12. The vent seat 503 is connected to the surface cover 11. The vent seat 503 and the surface cover 11 enclose a vent chamber 504.

[0303] According to the present application, by arranging the vent seat 503 of the optoelectronic display assembly 500 between the face cover 11 and the lining cover 12, and connecting the vent seat 503 to the face cover 11, a vent chamber 504 is formed between the vent seat 503 and the face cover 11. That is, a vent chamber 504 is formed between the optoelectronic display assembly 500 and the face cover 11. This helps to improve the structural compactness between the optoelectronic display assembly 500 and the cover body 10, and improves the space utilization of the cover body 10.

[0304] Specifically, the surface of the vent seat 503 facing the face cover 11 is recessed to form a vent groove 503A. The surface of the face cover 11 facing the vent seat 503 closes the notch of the vent groove 503A to form a vent chamber 504.

[0305] Continue to read Figure 28 to Figure 32 In addition, the cooking utensil may further include a vent seat seal 507. The vent seat seal 507 is connected between the vent seat 503 and the face cover 11 to seal the gap between the vent seat 503 and the face cover 11.

[0306] According to the present application, a vent seat seal 507 is provided between the vent seat and the cover 11 to improve the sealing between the vent seat 503 and the cover 11, thereby ensuring good air tightness and further improving the sensitivity and accuracy of the optoelectronic display assembly 500.

[0307] See also Fig.30 and Fig.31 For example, the vent seat 503 may include two vent interfaces 503B. The vent interface 503B is connected to the vent chamber 504 and the air path structure 85. The two vent interfaces 503B are relatively arranged on both sides of the rotation axis AX along the third direction D3. The two vent interfaces 503B are both facing one side of the rotation axis AX along the fourth direction D4 in the vent chamber 504. The third direction D3 is perpendicular to the fourth direction D4. And the third direction D3 and the fourth direction D4 are both perpendicular to the rotation axis.

[0308] According to the present application, when the pressure in the cooking space 32 changes, one of the two ventilation interfaces 503B allows air to flow out of the ventilation chamber 504, and the other allows air to flow into the ventilation chamber 504. Since the two ventilation interfaces 503B are arranged on both sides of the rotation axis AX along the third direction D3, and the ventilation chambers 504 of the two ventilation interfaces 503B are both oriented toward one side of the rotation axis AX along the fourth direction D3, the air flow between the two ventilation interfaces 503B acts on the same side of the impeller 502, ensuring that the impeller 502 can rotate in a preset rotation direction, so that the user can accurately know the pressure change in the cooking space 32 through the lighting state of the indicator light 501.

[0309] In other examples not shown, the magnetic member 510 and the power generation coil 511 are both disposed in the ventilation chamber 504. The magnetic member 510 is rotatably connected to the cooking utensil around the rotation axis AX. The magnetic member 510 is configured to rotate in response to pressure changes in the cooking space 32. According to the present application, by arranging both the magnetic member and the power generation coil in the ventilation chamber, the magnetic member can rotate around the rotation axis. Thus, when the magnetic member rotates in response to pressure changes in the cooking space, the power generation coil can generate current, thereby changing the light-emitting state of the indicator light, and then facilitating the user to understand the pressure changes in the cooking space based on the light-emitting state of the indicator light observed from the outside.

[0310] See also Figures 27 to 32 In addition, the cooking utensil may further include a transparent cover 506. The transparent cover 506 is configured as a completely transparent or translucent structure. The transparent cover 506 may be a structure made of materials such as plastic and glass. The transparent cover 506 is connected to the outward surface of the cover body 10 to form a receiving cavity 508 between the transparent cover 506 and the cover body 10. The indicator light 501 is located in the receiving cavity 508.

[0311] According to the present application, by providing a transparent cover 506 , the indicator light 501 is accommodated in the accommodating cavity 508 between the transparent cover 506 and the cover body 10 , thereby protecting the indicator light 501 and facilitating observation by the user.

[0312] Optionally, the cover 11 may include an upper cover 11C and a panel 11D located outside the upper cover 11C. The outer periphery of the transparent cover 506 is located between the panel 11D and the upper cover 11C along the thickness direction of the cover body 10 to prevent the transparent cover 506 from being separated from the cover body 110.

[0313] See also Figures 27 to 33Furthermore, the surface of the cover 11 facing away from the backing cover 12 is recessed to form a receiving groove 11B. The transparent cover 506 is arranged to cover the notch of the receiving groove 11B, so that a receiving cavity 508 is formed between the cover 11 and the transparent cover 506. This is conducive to reducing the occupation of the transparent cover 506 on the external space of the cover 11, making the structure of the cover body 10 more compact, so as to prevent the overall size of the cover body from increasing.

[0314] See also Fig.30 and Fig.31 Furthermore, the lower surface of the cover 11 extends along the second direction D2 toward the lining cover 12 to form a limiting convex rib. The limiting convex rib is distributed around the vent seat 503 in the installation area of ​​the cover 11 to position the vent seat 503 in the direction intersecting the second direction D2.

[0315] See also Figure 28 to Figure 33 For example, the inner vent is configured as an air inlet and outlet 18 for bidirectional air flow. The air path structure 85 may further include an air flow reversing device 50. The air flow generating device 95 is connected to the air inlet and outlet 18 via the pipeline 520 via the air flow reversing device 50. The air flow generating device 95 is connected to the outside via the pipeline 520 via the air flow reversing device 50. The air flow reversing device 50 is used to realize air flow reversal in the air path structure 85.

[0316] According to the present application, by providing the airflow reversing device 95, two functions can be realized: blowing air from the air inlet and outlet 18 into the cooking space 32 and extracting air from the cooking space 32, thereby improving the functional integration of the cooking appliance. The photoelectric display assembly 500 can display different airflow directions and pressure changes, thereby improving the user experience.

[0317] See also Fig. 9 , Fig.10 and Fig.33 Furthermore, the optoelectronic display assembly 500 is connected in series to the pipeline 520 between the airflow reversing device 50 and the outside.

[0318] According to the present application, by connecting the optoelectronic display assembly 500 in series on the pipeline 520 between the airflow reversing device 50 and the outside, it is convenient to arrange the optoelectronic display group 500 reasonably, which is conducive to reducing the complexity of the structure.

[0319] See also Figures 27 to 33 In addition, the cooking appliance may further include a steam valve 90 disposed on the cover 10. The steam valve 90 is provided with a steam valve vent connected to the outside, and the photoelectric display assembly 500 is connected in series between the airflow reversing device 50 and the steam valve vent through a pipeline 520.

[0320] According to the present application, by connecting the optoelectronic display assembly 500 in series between the airflow reversing device 50 and the steam valve vent of the steam valve 90, structures such as pipelines can be simplified, thereby reducing costs.

[0321] Continue reading Figures 27 to 33 In addition, the cooking appliance may further include a reversing assembly of any of the above embodiments. The reversing assembly is disposed on the cover body 10. The reversing assembly is used to drive the communication port opening and closing assembly 40 and the airflow reversing device 50 to act accordingly, so that when the reversing assembly acts, the communication port opening and closing assembly 40 and the airflow reversing device 50 act synchronously or in a coordinated manner.

[0322] According to the present application, the reversing assembly can simultaneously drive the communication port opening and closing assembly 40 and the airflow reversing device 50, so that the communication port opening and closing assembly 40 and the airflow reversing device 50 are linked, thereby collaboratively changing the connection state between the cooking space 32 and the environment and the airflow direction in the air path, so that the air pressure in the cooking space 32 can be easily controlled, the functional integration of the cooking appliance is improved, and the user experience is improved. The air pressure state of the cooking space 32 is driven and switched by only one set of reversing assemblies, and the cooking appliance has a compact structure and low hardware cost.

[0323] See also Fig. 9 , Fig.10 as well as Fig.33 The working principle of the photoelectric display assembly is as follows: when the cooking appliance is working in vacuum, one of the two LEDs 501 is on and the other is off, which means that the pressure inside the pot is negative. When the cooking appliance is working in blowing / pressurizing, one of the two LEDs 501 is off and the other is on, which means that the pressure inside the pot is positive. In this way, the purpose of displaying the pressure working state change in the cooking space 32 is achieved, thereby visualizing the pressure change, thereby enhancing the user's sensory experience.

[0324] See also Fig.10 and Fig.33 Specifically, when the reversing assembly 60 is in a sealed working state and the airflow generating device 95 is performing the exhaust operation, the airflow flows through the photoelectric display assembly 500, which can drive the impeller 502 to rotate counterclockwise, thereby driving the magnetic member 510 to rotate counterclockwise, so that the generating coil 511 generates a current in one direction, thereby making one of the two light-emitting diodes 501 light up and the other off, thereby achieving the effect of displaying negative pressure through the light-emitting state of the two light-emitting diodes 501.

[0325] See also Fig. 9 and Fig.33On the contrary, when the reversing assembly 60 is in the synchronous working state and the airflow generating device 95 is performing the blowing operation, the airflow flows through the photoelectric display assembly 500, which can drive the impeller 502 to rotate clockwise, thereby driving the magnetic member 510 to rotate clockwise, so that the generating coil 511 generates a current in another direction, thereby making one of the two light-emitting diodes 501 extinguish and the other light up, thereby achieving the effect of displaying positive pressure through the light-emitting state of the two light-emitting diodes 501.

[0326] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of this application. The terms used herein are only for describing specific implementation purposes and are not intended to limit this application. Terms such as "setting" appearing in this article can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0327] The present application has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present application to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the present application, and these variations and modifications all fall within the scope of protection claimed in the present application.

Claims

1. A cooking utensil, characterized in that: The cooking appliance comprises: A pot body (30), the pot body (30) comprising a pot body (31) for accommodating food materials and a heating device (33); a cover body (10), the cover body (10) being arranged on the pot body (30) in an openable and closable manner so as to form a cooking space (32) between the cover body (10) and the pot inner body (31), and the cover body (10) being provided with an inner vent (18) for communicating with the cooking space (32); an air path structure (85), the air path structure (85) being in communication with the inner vent (18), the air path structure (85) changing the pressure in the cooking space (32) by sucking air or blowing air into the cooking space (32); and A photoelectric display assembly (500), the photoelectric display assembly (500) being arranged outside the cooking utensil, the photoelectric display assembly (500) having a ventilation chamber (504) or a ventilation chamber (504) being formed between the photoelectric display assembly (500) and the cover body (10), the ventilation chamber (504) being communicated with the gas path structure (85), the photoelectric display assembly (500) comprising an indicator light (501), the photoelectric display assembly (500) being arranged to be able to display the pressure change in the cooking space (32) through the light state of the indicator light (501), Wherein, the optoelectronic display assembly (500) comprises: a magnetic member (510), the magnetic member (510) having an N pole and an S pole with different magnetic properties, the magnetic member (510) being rotatably connected to the cooking device around a rotation axis (AX), the rotation axis (AX) being located between the N pole and the S pole, the magnetic member (510) being configured to rotate in response to a pressure change in the cooking space (32); A power generation coil (511) is circumferentially arranged outside the magnetic member (510), and two ends of the power generation coil (511) are electrically connected to the indicator light to form a conductive loop.

2. The cooking device according to claim 1, characterized in that: The optoelectronic display assembly (500) further comprises: An impeller (502), the impeller (502) is located in the ventilation chamber (504), the impeller (502) is rotatably connected to the cooking appliance around a rotation axis (AX), the impeller (502) is transmission-connected to the magnetic member (510), and the impeller (502) is configured to rotate in response to pressure changes in the cooking space (32) to drive the magnetic member (510) to rotate.

3. The cooking device according to claim 2, characterized in that: The optoelectronic display assembly (500) further comprises a rotating shaft (505), which is rotatably arranged on the cooking utensil around its own axis, one end of the rotating shaft is located in the ventilation chamber (504), and the other end of the rotating shaft (505) extends to the side of the ventilation chamber (504) facing the outside, and the rotating shaft (505) is fixedly connected to the magnetic member (510) and the impeller (502).

4. The cooking device according to claim 1, characterized in that: The magnetic member (510) and the generating coil (511) are both arranged in the ventilation chamber (504); the magnetic member (510) is rotatably connected to the cooking utensil around a rotation axis (AX); and the magnetic member (510) is arranged to rotate in response to pressure changes in the cooking space (32).

5. The cooking device according to claim 1, characterized in that: The indicator light (501) comprises two light emitting diodes, which are connected in parallel at two ends of the power generation coil, and the conduction directions of the two light emitting diodes are opposite, so that the two light emitting diodes do not emit light at the same time.

6. The cooking device according to any one of claims 1 to 5, characterized in that: The cover body (10) comprises a surface cover (11) and a lining cover (12), wherein the surface cover (11) is located on a side of the lining cover (12) facing away from the pot body (30); The optoelectronic display assembly (500) further comprises a vent seat (503), wherein the vent seat (503) is located between the surface cover and the lining cover, the vent seat (503) is connected to the surface cover, and the vent seat (503) and the surface cover are enclosed to form the vent chamber (504); The cooking appliance further comprises a vent seat seal (507), wherein the vent seat seal (507) is connected between the vent seat (503) and the face cover (11) to seal the gap between the vent seat (503) and the face cover (11).

7. The cooking device according to claim 6, characterized in that: The ventilation seat (503) includes two ventilation interfaces (503B), and the ventilation interfaces (503B) are connected to the ventilation chamber (504) and the air path structure (85). The two ventilation interfaces (503B) are relatively arranged on both sides of the rotation axis (AX) along the third direction (D3). The two ventilation interfaces (503B) in the ventilation chamber (504) are both facing one side of the rotation axis (AX) along the fourth direction (D4), the third direction (D3) is perpendicular to the fourth direction (D4), and the third direction (D3) and the fourth direction (D4) are both perpendicular to the rotation axis.

8. The cooking device according to any one of claims 1 to 5, characterized in that: The cooking appliance further comprises a transparent cover (506), wherein the transparent cover (506) is constructed as a completely transparent or translucent structure, and the transparent cover (506) is connected to the outward surface of the cover body (10) to form a receiving cavity (508) between the transparent cover (506) and the cover body (10), and the indicator light is located in the receiving cavity (508).

9. The cooking device according to claim 8, characterized in that: The cover body (10) comprises: Upper cover (11C); and a panel (11D), the panel (11D) being connected to the upper portion of the upper cover (11C) along the thickness direction of the upper cover (11C), The outer periphery of the transparent cover (506) is located between the panel (11D) and the upper cover (11C) along the thickness direction.

Images