WO2024082240A1

WO2024082240A1 - Cold and heat isolation apparatus and isolation valve assembly of food cooking device

Info

Publication number: WO2024082240A1
Application number: PCT/CN2022/126536
Authority: WO
Inventors: 范未强
Original assignee: 深圳市虎一科技有限公司
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2024-04-25

Abstract

In a food cooking device (1), a cold and heat isolation apparatus and an isolation valve assembly (230) thereof, a first air vent (232) is switched on and off by moving a butt-joint base (231) opposite to a heat insulation valve core (233). An elastic pre-tightening member (239) directly or indirectly acts on the heat insulation valve core (233), and provides a pre-tightening force for causing the heat insulation valve core (233) to abut against the butt-joint base (231) to the heat insulation valve core (233). The elastic pre-tightening force enables the heat insulation valve core (233) to better fit the butt-joint base (231), thereby improving the sealing effect of the heat insulation valve core (233) and the first air vent (232). Due to the presence of the elastic pre-tightening member (239), the heat insulation valve core (233) can adaptively adjust the position according to the structure of the surface of the butt-joint base (231), and even if the outer surface of the butt-joint base (231) is uneven due to the machining technology and other reasons, the heat insulation valve core (233) can also stably move relative to the butt-joint base (231), which reduces the requirement for the machining precision of the outer surface of the butt-joint base (231), and is beneficial to reducing the machining cost.

Description

Hot and cold isolation device and isolation valve assembly for food cooking equipment

Technical Field

The invention relates to kitchen electrical equipment, and in particular to a cold and hot isolation device for food cooking equipment.

Background technique

At present, there are many types of food heating and cooking equipment that achieve the purpose of cooking by heating food, such as ovens, steam heating devices, microwave ovens, and steam-bake-in-one equipment. Traditional food heating and cooking equipment does not have a refrigeration function. Leaving food for a long time can easily lead to loss of nutrition, reduction of freshness, and even rot. When cooking, users need to take the food out of the refrigerator, thaw it, and then put it into the heating and cooking equipment for heating and cooking.

In order to provide a better user experience and to make it more convenient for users, some food heating and cooking devices now add a refrigeration module to keep the food in the cooking cavity cool and fresh. Therefore, users can place the food in the cooking cavity in advance and preset the heating time according to their needs. However, since the cooking cavity is a high-temperature area, the high temperature can easily damage the refrigeration module. Therefore, thermal isolation is required between the cooking cavity and the refrigeration module.

However, the existing structure for thermally isolating the cooking cavity and the refrigeration module has poor thermal insulation effect.

Summary of the invention

The present invention mainly provides a hot and cold isolation device and an isolation valve assembly of a food cooking device and the food cooking device using the hot and cold isolation device or the isolation valve assembly, so as to provide a new hot and cold isolation structure.

Based on the above purpose, an embodiment of the present application provides a hot and cold isolation device for food cooking equipment, including:

A cooking chamber, wherein the cooking chamber has a cooking cavity for placing food;

A heating component, the heating component is used to heat the food placed in the cooking cavity;

A refrigeration assembly, wherein the refrigeration assembly has a refrigeration cavity, and the refrigeration assembly can form cold air in the refrigeration cavity;

and an isolation valve assembly, the isolation valve assembly comprising a docking seat, a heat-insulating valve core and an elastic pre-tightening member, the docking seat being a part of the refrigeration assembly or the cooking chamber, or the docking seat being fixedly arranged relative to the refrigeration assembly and/or the cooking chamber, the docking seat having at least one first vent arranged through, the refrigeration assembly and the cooking chamber being connected through the first vent, the refrigeration assembly being able to at least input cold air into the cooking chamber to reduce the temperature in the cooking chamber;

The thermal insulation valve core can move relative to the docking seat to cut off and open the first air vent; the elastic preload member acts directly or indirectly on the thermal insulation valve core, and provides the thermal insulation valve core with a preload force that causes the thermal insulation valve core to press against the docking seat, so as to improve the sealing effect between the thermal insulation valve core and the first air vent.

Based on the above purpose, an isolation valve assembly of a food cooking device is provided in one embodiment of the present application, including:

A docking seat, wherein the docking seat has at least one first vent disposed therethrough, wherein the first vent is used for passage of gas;

a heat-insulating valve core, wherein the heat-insulating valve core can move relative to the docking seat to cut off and open the first vent;

and an elastic pre-tightening member, wherein the elastic pre-tightening member acts on the thermal insulation valve core directly or indirectly and provides a pre-tightening force to the thermal insulation valve core to cause the thermal insulation valve core to press against the docking seat, so as to improve the sealing effect between the thermal insulation valve core and the first vent.

Based on the above purpose, an embodiment of the present application provides a food cooking device, including:

and an isolation valve assembly as described in any one of the above;

Wherein, the cooking cavity is communicated with the first vent.

Based on the above purpose, an embodiment of the present application provides a food cooking device, including a hot and cold isolation device as described in any one of the above items or an isolation valve assembly as described in any one of the above items.

According to the hot and cold isolation device and the isolation valve assembly shown in the above-mentioned embodiment, the first vent is cut off and opened by the movement of the insulation valve core relative to the docking seat. The elastic preload member acts directly or indirectly on the insulation valve core and provides the insulation valve core with a preload force that causes the insulation valve core to press against the docking seat. The elastic preload force not only enables the insulation valve core to better fit the docking seat, thereby improving the sealing effect between the insulation valve core and the first vent, but also, due to the presence of the elastic preload member, the insulation valve core can adaptively adjust its position according to the structure of the docking seat surface. Even if the outer surface of the docking seat has uneven defects due to processing technology and other reasons, the insulation valve core can stably move relative to the docking seat, which reduces the requirements for the processing accuracy of the outer surface of the docking seat and is conducive to reducing processing costs.

BRIEF DESCRIPTION OF THE DRAWINGS

Figures 1 and 2 are schematic diagrams of the appearance structure of a food cooking device in one embodiment of the present application at different viewing angles, when the door is in an open state;

FIG3 is a schematic diagram of a steam heating component and an electric oven heating component in one embodiment of the present application;

4 and 5 are schematic diagrams of the structure of a cooling component in different viewing angles in one embodiment of the present application;

Fig. 6 is a cross-sectional view taken along the line A-A shown in Fig. 5;

Fig. 7 is a cross-sectional view taken along the line B-B shown in Fig. 5;

FIG8 is a schematic structural diagram of an isolation valve core in an open position in an embodiment of the present application;

Fig. 9 is a C-C sectional view shown in Fig. 8;

FIG10 is a schematic structural diagram of an isolation valve core in a closed position in one embodiment of the present application;

Fig. 11 is a D-D cross-sectional view shown in Fig. 10;

FIG12 is a schematic diagram of the lateral movement of the heat-insulating valve core relative to the first vent in some embodiments of the present application;

FIG13 is a schematic diagram of the radial component of the motion trajectory of the heat-insulating valve core at the first vent in one embodiment of the present application;

FIG14 is a schematic diagram of a refrigeration assembly located on the left side wall of a cooking chamber in one embodiment of the present application;

FIG15 is an exploded view of an isolation valve assembly in one embodiment of the present application;

FIG16 is a schematic structural diagram of an isolation valve assembly in another embodiment of the present application;

FIG17 is a cross-sectional view of the embodiment shown in FIG16;

18 and 19 are exploded views of a base, a cover and a partition plate in different viewing angles in one embodiment of the present application;

Fig. 20 is a cross-sectional view E-E shown in Fig. 5;

FIG21 is a schematic diagram of an isolation valve core and a driving member located outside the refrigeration bin in one embodiment of the present application;

FIG22 is a schematic structural diagram of an isolation valve core and a docking seat in one embodiment of the present application;

Fig. 23 is a cross-sectional view of the embodiment shown in Fig. 22;

24 to 27 are schematic structural diagrams of the isolation valve core and the docking seat in different embodiments of the present application;

FIG28 is a schematic structural diagram of the rotational movement of the isolation valve core relative to the docking seat in one embodiment of the present application;

FIG. 29 is a cross-sectional view of the embodiment shown in FIG. 28 .

Detailed ways

The present invention will be further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

The present application provides a food cooking device, which can cook food by heating, and the heating method includes but is not limited to steaming, baking, microwave heating, etc.

Please refer to Figures 1-7. In some embodiments, the food cooking device 1 has a device body 100 and a refrigeration module 200. The device body 100 is an area for cooking food, and it may have a main shell 110, a cooking chamber 120, a door 130, a heating component 140 and other related devices. The cooking chamber 120 and the heating component 140 may be arranged in the main shell 110. The refrigeration module 200 is attached to the device body 100 and is mainly used to cool the cooking chamber 120. The refrigeration module 200 has a module shell 210, and a refrigeration component 220 is arranged in the module shell 210 (see Figure 14). Of course, in other embodiments, the cooking chamber 120, the heating component 140 and the refrigeration component 220 may also be arranged in the same shell, that is, to form an integral structure, rather than being arranged in two shells.

The cooking chamber 120 has a cooking cavity 122 for placing ingredients, and the ingredients placed in the cooking cavity 122 are heated by the heating component 140 to become cooked food. Different tastes and nutrition can be obtained according to different heating methods. Specifically, please refer to Figures 1, 2 and 14. The cooking chamber 120 has a chamber wall 121, and the chamber wall 121 has an ingredient access opening 123, which is convenient for users to take and put ingredients. In this application, the side where the ingredient access opening 123 is located is called the front of the device. The side of the ingredient access opening 123 is usually facing the user when in use, but in some embodiments, the side of the ingredient access opening 123 can also face other directions when in use. The door 130 is movably arranged to open and close the ingredient access opening 123. When the door 130 is closed, it can form a closed cavity with the cooking chamber 120, which is convenient for the processing of ingredients.

Please refer to FIG. 14 , the chamber wall 121 of the cooking chamber 120 may also include a back wall 124, a left wall 125, a right wall 126, a bottom wall 127 and a top wall 128. The back wall 124 is arranged opposite to the food access opening 123, the left wall 125 and the right wall 126 are located between the food access opening 123 and the back wall 124, the top wall 128 is located at the top of the cooking chamber 120, and the bottom wall 127 is located at the bottom of the cooking chamber 120. The left wall 125 and the right wall 126 refer to the side wall located at the user's left hand when the food access opening 123 faces the user, and the side wall located at the user's right hand is the left wall 125, and the side wall located at the user's right hand is the right wall 126. Of course, as the relative positions of the device and the user change, each chamber wall 121 may also have different names. In FIG. 14 , the cooking chamber 120 is a square structure. In other embodiments, the cooking chamber 120 may also be other shapes, such as a spherical or elliptical structure.

The heating component 140 is used to heat the food placed in the cooking cavity 122. The heating component 140 may be, but is not limited to, at least one of a microwave component, a steam heating component, an electric grill heating component, and other food cooking heating components. For example, please refer to FIG3. In the embodiment shown in FIG3, the heating component 140 includes a steam heating component 142 and an electric grill heating component 141, so that the food cooking device 1 has both the functions of an oven and steam heating. Please refer to FIG3. In some embodiments, the steam heating component 142 is arranged on the back wall 124 or other warehouse walls 121 of the cooking chamber 120, and the other warehouse walls 121 may be the top wall 128, the bottom wall 127, or the left wall 125, the right wall 126, etc. of the cooking chamber 120. The electric grill heating component 141 may also be arranged on at least one warehouse wall 121 of the cooking chamber 120, for example, on the back wall 124, the top wall 128 or other positions.

In order to keep the food fresh, the food cooking device 1 is provided with a refrigeration component 220. The refrigeration component 220 has a refrigeration chamber 221, and the refrigeration chamber 221 has a refrigeration cavity 2211. The refrigeration component 220 can form cold air in the refrigeration cavity 2211. When keeping the food fresh, the cold air can flow into the cooking cavity 122 to reduce the temperature in the cooking cavity 122, thereby keeping the food fresh. The user can place the food in the cooking cavity 122 in advance and reserve a time for heating and cooking.

In order to protect the refrigeration assembly 220 and prevent the hot air flow from entering the refrigeration assembly 220 and damaging its structure during the heating and cooking process, some embodiments of the present application also provide an isolation device, which includes the above-mentioned cooking chamber 120, heating assembly 140 and refrigeration assembly 220, and also includes an isolation valve assembly 230. The isolation valve assembly 230 has a docking seat 231 and a heat-insulating valve core 233. Among them, the docking seat 231 can be a part of the refrigeration chamber 221 or the cooking chamber 120. For example, as shown in the schematic diagram of FIG. 12, a part of the refrigeration chamber 221 or the cooking chamber 120 is directly used as the docking seat 231. Alternatively, the docking seat 231 is fixedly arranged relative to the refrigeration chamber 221 and/or the cooking chamber 120, such as the docking seat 231 is directly or indirectly installed on the refrigeration chamber 221 or the cooking chamber 120 to achieve relative fixation between each other. The heat-insulating valve core 233 is made of a material or structure that can withstand high temperatures, which not only has a partition sealing effect, but also has a heat-insulating effect. For example, the heat-insulating valve core 233 may be made of metal material, or may be filled with heat-insulating material (such as common heat-insulating cotton, etc.) to enhance the heat-insulating effect.

Please refer to Figures 6, 7 and 14. In some embodiments, the docking seat 231 has at least one first vent 232 that is arranged through. The refrigeration cavity 2211, the cooking cavity 122 and the first vent 232 are connected, so that the refrigeration component 220 can at least input cold air into the cooking cavity 122 through the first vent 232 to reduce the temperature in the cooking cavity 122. That is, at least one first vent 232 is an outlet 2321 for transmitting cold air from the refrigeration cavity 2211 to the cooking cavity 122 to achieve the input of cold air. A cold air input channel that is unidirectionally connected from the refrigeration cavity 2211 to the cooking cavity 122 can be formed between the refrigeration cavity 2211 and the cooking cavity 122, and the gas in the cooking cavity 122 can be discharged to the outside of the cooking cavity 122 through other openings. Please refer to Figures 6, 7 and 14. In some embodiments, the first air vent 232 can be divided into an air outlet 2321 and an air inlet 2322. The air outlet 2321 and the air inlet 2322 are respectively connected to the refrigeration cavity 2211 and the cooking cavity 122 to form a circulating air duct. This structure that circulates the refrigeration cavity 2211 and the cooking cavity 122 is beneficial to prevent the leakage of cold air, thereby improving the cooling efficiency of the refrigeration component 220 on the cooking cavity 122, so that it can reach the required low temperature state or reach a lower temperature more quickly.

The two ends of the first vent 232 are directly or indirectly connected to the refrigeration cavity 2211 and the cooking cavity 122 respectively. The on-off state of the first vent 232 can control the on-off state of the refrigeration cavity 2211 and the cooking cavity 122. The movement trajectory of the heat-insulating valve core 233 has a closed position and an open position. Please refer to Figure 11. When the heat-insulating valve core 233 is in the closed position, the heat-insulating valve core 233 cuts off the first vent 232 to isolate the cooking cavity 122 from the refrigeration cavity 2211; please refer to Figure 9. When the heat-insulating valve core 233 is in the open position, the heat-insulating valve core 233 opens the first vent 232 to connect the cooking cavity 122 with the refrigeration cavity 2211. When the heat-insulating valve core 233 moves laterally along the first vent 232 and cuts off the first vent 232, the sealing effect is better, and thus the heat-insulating effect is also better. Of course, the heat-insulating valve core 233 can cut off the first vent 232 by directly blocking the first vent 232 with the heat-insulating valve core 233, or by cutting off other channels connected to the first vent 232 with the heat-insulating valve core 233, that is, the heat-insulating valve core 233 can but does not have to be in direct contact with the first vent 232. The movement trajectory of the heat-insulating valve core 233 refers to the trajectory formed by any point of the moving part of the heat-insulating valve core 233 during the movement process of opening and cutting off the first vent 232.

In the common valve body structure, the valve core must not only run smoothly, but also ensure a certain degree of sealing, which is a difficult problem in the field of valve body design. In order to achieve a better sealing effect, not only the wear resistance of the valve core material is required to be high, but also the processing accuracy of the parts surface is required to be high. Some even require the valve core contact and matching surface to be plated or strengthened, which greatly increases the manufacturing cost of the valve body. In addition, since the general valve body adopts the contact surface matching to achieve sealing, the assembly process of the valve body parts is required to be high, which also increases the installation cost of the valve body.

In order to simplify the processing technology and assembly requirements of the thermal insulation valve core 233 and its matching parts while ensuring the smooth operation and sealing of the thermal insulation valve core 233, please refer to Figures 15 and 17. In some embodiments, the isolation valve assembly 230 also includes an elastic preload 239, which directly or indirectly acts on the thermal insulation valve core 233 and provides a preload force to the thermal insulation valve core 233 to force the thermal insulation valve core 233 to press against the docking seat 231, so as to improve the sealing effect between the thermal insulation valve core 233 and the first air vent 232.

The elastic preload member 239 can act on one or more places of the thermal insulation valve core 233. The elastic preload member 239 can be used as one or more. The elastic pressing member can be directly connected to the thermal insulation valve core 233, or can be connected to a structure linked to the thermal insulation valve core 233. The preload force of the elastic preload member 239 on the thermal insulation valve core 233 can cause the thermal insulation valve core 233 to abut against the docking seat 231 more closely, thereby more closely fitting the end face of the first vent 232 to achieve better sealing.

Since the elastic preload 239 is provided, the surface processing requirements and assembly requirements for the thermal insulation valve core 233 and other components in contact with the thermal insulation valve core 233 (such as the docking seat 231) can be reduced. Even if there are defects on the surface of other components or the thermal insulation valve core 233, such as not being smooth enough or being uneven, it can be adaptively adjusted through the elastic preload 239, so that it can stably move relative to the docking seat 231 and fit more closely with the end face of the first air vent 232. This reduces the requirements for the surface processing accuracy of each component, and each component is simple, reliable, and highly resistant to roughness, which greatly improves the reliability and roughness resistance of the entire valve body, which is beneficial to reducing processing costs and reducing assembly difficulty.

Furthermore, in order to control the movement of the heat-insulating valve core 233, the isolation valve assembly 230 has a driving member 234, which is connected to the heat-insulating valve core 233 to drive the heat-insulating valve core 233 to move between the closed position and the open position. The driving member 234 can be an electric control driving member, that is, the user inputs an electric signal instruction or the device system automatically outputs a control signal to control the working state of the electric control driving member. For example, the electric control driving member can adopt existing electric control driving members such as rotary motors, linear motors, cylinders, hydraulic cylinders, and electromagnet driving members. And/or, the driving member 234 can also be a manual driving member, that is, through a mechanical transmission structure, the user manually inputs a force signal to drive the movement of the heat-insulating valve core 233. For example, the manual driving member can be a mechanical control structure adopted by a handle, a push-pull rod, a turntable, etc.

Please refer to Figures 8-11 and 15. In some embodiments, the driving member 234 is driven by a motor to improve the convenience of controlling the valve core. The driving member 234 can be directly connected to the thermal insulation valve core 233 to achieve linkage. Of course, the isolation valve assembly 230 also has a transmission mechanism, and the output end of the driving member 234 is connected to the transmission mechanism to drive the transmission mechanism to move. The transmission mechanism and the thermal insulation valve core 233 are movably connected to drive the thermal insulation valve core 233 to move.

Further, in some embodiments, the thermal insulation valve core 233 is arranged in a manner that it can move laterally relative to the first air vent 232, wherein, please refer to Figure 12, laterally relative to the first air vent 232 means that the thermal insulation valve core 233 cuts into or exits the first air vent 232 along the radial direction of the first air vent 232 or at a certain angle to the radial direction, and a and a' in Figure 12 are respectively movement trajectories of the thermal insulation valve core 233 moving laterally relative to the first air vent 232 from different angles, so that the thermal insulation valve core 233 occupies a smaller space in the axial direction of the first air vent 232 as its movement space, and can make full use of the lateral space around the first air vent 232, which is beneficial to reducing the volume of the equipment in the axial direction of the first air vent 232.

In some embodiments, please refer to FIG. 13 , the component of the motion trajectory of the insulation valve core 233 in the radial direction of the first vent 232 is greater than zero, that is, the direction of the motion trajectory of the insulation valve core 233 can be divided into two components: a motion trajectory a1 extending along the axial direction c1 of the first vent 232 (that is, perpendicular to the radial plane of the first vent 232, coincident with or parallel to the axial direction c1 of the first vent 232) and a motion trajectory a2 extending along the radial direction of the first vent 232. In the embodiment shown in FIG. 13 , the component a2 of the motion trajectory of the insulation valve core 233 extending along the radial direction of the first vent 232 is greater than 0. In other embodiments, when the insulation valve core 233 moves axially along the first vent 232, its component a2 in the radial direction of the first vent 232 is 0; when the insulation valve core 233 moves radially along the first vent 232, its component a1 in the axial direction c1 of the first vent 232 is 0.

When the insulation valve core 233 is in the closed position, on the radial plane of the first air vent 232, the orthographic projection of the insulation valve core 233 completely covers the orthographic projection of the first air vent 232; when the insulation valve core 233 is in the open position, on the radial plane of the first air vent 232, the orthographic projection of the insulation valve core 233 at most covers a part of the orthographic projection of the first air vent 232, for example, the insulation valve core 233 is completely staggered with the first air vent 232, so that the first air vent 232 can connect the refrigeration cavity 2211 and the cooking cavity 122 through the exposed part.

Please refer to FIG. 12 , in some embodiments, the lateral movement of the heat-insulating valve core 233 relative to the first vent 232 can be further limited to at least one section of the movement trajectory of the heat-insulating valve core 233 being perpendicular to the axis c1 of the first vent 232 (i.e., the angle b1 is 90°) or forming an angle b2 greater than or equal to 45°. The setting of this angle can minimize the space c1 of the axial direction of the first vent 232 occupied by the heat-insulating valve core 233 during the movement, avoiding causing the entire structure to be too large in the axial direction c1 of the first vent 232.

Preferably, please refer to FIGS. 8-11 , in some embodiments, the heat-insulating valve core 233 is inserted into the first vent 232 and withdrawn from the first vent 232 along the radial direction of the first vent 232. In this embodiment, it is only necessary to reserve a space slightly larger than the thickness of the heat-insulating valve core 233 (i.e., the size of the heat-insulating valve core 233 in the axial direction of the first vent 232) in the axial direction c1 of the first vent 232, so as to meet the requirements of the first heat-insulating valve core 233 in this direction, and the space in this direction will not be increased extra. Of course, due to manufacturing errors, assembly errors and changes in specific matching structures, the heat-insulating valve core 233 does not necessarily strictly require the heat-insulating valve core 233 to be parallel or coincident with the radial direction of the first vent 232 along the radial direction of the first vent 232. As long as the angle between the heat-insulating valve core 233 and the radial direction of the first vent 232 is within a certain range (e.g., less than 10° or less than 20°), it is considered to be moving in the radial direction of the first vent 232.

In order to ensure the gas flow rate of the first vent 232 , in some embodiments, please refer to FIG. 9 , the radial cross-section of the portion of the first vent 232 away from the sealing end 2324 is larger than the radial cross-section of the sealing end 2324 .

More specifically, in some embodiments, please refer to FIG. 9 , the end of the first vent 232 away from the sealing end 2324 is a butt end 2325, and the butt end 2325 is used to communicate with the cooking cavity 122 or the refrigeration cavity 2211, and the radial cross section of the butt end 2325 is circular. Of course, in other embodiments, the radial cross section of the butt end 2325 can also be other shapes, as long as its radial cross section area is greater than the radial cross section area of the sealing end 2324.

Further, under the premise of being able to achieve lateral movement relative to the first vent 232 and cut off and open the first vent 232, the movement mode of the heat-insulating valve core 233 relative to the docking seat 231 can be freely selected. For example, in some embodiments, the movement of the heat-insulating valve core 233 is translation or rotation. Among them, translation means that the movement trajectory of the heat-insulating valve core 233 is roughly located in a plane (not limited to the horizontal plane and the vertical plane), as shown in Figures 8-11, at this time, the heat-insulating valve core 233 reciprocates in the left and right directions shown in the figure. Of course, the translation means that the main movement trajectory of the heat-insulating valve core 233 is roughly located in a plane. Due to manufacturing errors, assembly errors and changes in specific matching structures, when the heat-insulating valve core 233 is in the translation process, it can also be accompanied by some floating perpendicular to its translation plane. This embodiment also regards these situations as a form of translation. The translation trajectory of the heat-insulating valve core 233 can be a straight line, a curve, a broken line, a ring (that is, a closed path, which can be a circular ring, an elliptical ring or a ring-shaped polygon, etc.) and a special shape, or a combination of two or more. The rotation refers to the heat-insulating valve core 233 rotating in a certain circle, for example, rotating with a point on it as the center of the circle.

Of course, the translation and rotation are only examples of the movement modes of the thermal insulation valve core 233. In other embodiments, other movement modes may also be selected.

Further, in some embodiments, please refer to Figures 9, 17 and 23. In some embodiments, the docking seat 231 has a support surface 2313, and the insulation valve core 233 moves along the surface of the support surface 2313. For example, the insulation valve core 233 is arranged in a manner that can translate or rotate on the support surface 2313. The first vent 232 is arranged through the support surface 2313, and the insulation valve core 233 may or may not contact the support surface 2313 during the movement. This method can reduce the space occupied by the insulation valve core 233 in the direction perpendicular to the support surface 2313, and can make full use of the lateral space of the support surface 2313 itself, which is conducive to reducing the volume of the device in the direction perpendicular to the support surface 2313.

Furthermore, in some embodiments, the warehouse wall 121 has a docking outer wall for installing the isolation valve assembly 230, the isolation valve assembly 230 is located outside the docking outer wall, and the axis c1 of the first vent 232 is perpendicular to or forms an acute angle with the plane where the docking outer wall is located, so that while having the cooling and fresh-keeping function, the volume of the entire device on the docking outer wall side in the axial direction of the first vent 232 can be reduced. Among them, as long as it does not conflict with other structures, any side of the warehouse wall 121 can be used as a docking outer wall, for example, at least one side of the back wall 124, the left wall 125, the right wall 126, the top wall 128 and the bottom wall 127 has a docking outer wall.

Please refer to FIG. 14. In some embodiments, the left side wall 125 has a docking outer wall 129, that is, the refrigeration component 220 is arranged on the left side wall 125. In the illustrated embodiment, the axis c1 of the first vent 232 is perpendicular to the left side wall 125. Of course, the two can also form an acute angle structure. Please refer to FIGS. 5 and 14. In some embodiments, the refrigeration component 220 is docked with the cooking chamber 120 through the docking seat 231. In order to achieve a good heat insulation effect, in some embodiments, a heat insulation layer 235 (such as made of heat insulation materials such as heat insulation cotton) is arranged between the docking seat 231 and the cooking chamber 120 for heat insulation.

Further, please refer to Figure 8. In some embodiments, in order to further increase the insulation effect of the refrigeration component 220 and the cooking chamber 120, the docking seat 231 is filled with a second insulation layer 236 (made of insulation materials such as insulation cotton), and insulation is performed by the second insulation layer 236.

In addition, in some other embodiments, at least one side of the left side wall 125 and the right side wall 126 has a docking outer wall 129. Compared with the installation method of other refrigeration components 220 and the left side wall 125 and the right side wall 126, this arrangement will make the size of the entire device in the left and right direction (defined as the width direction of the device in this embodiment) smaller. At this time, the insulation valve core 233 can move relative to the docking seat 231 along the front-to-back direction or the up-down direction of the docking outer wall 129. In this embodiment, the side where the food access port 123 is located is defined as the front, the side where the back wall 124 is located is the back, the side where the left side wall 125 is located is the left, the side where the right side wall 126 is located is the right, the side where the top wall 128 is located is the top, and the side where the bottom wall 127 is located is the bottom. These directional nouns are only for more clearly explaining the relative position relationship between the various features. Their essence is to emphasize the relative position of each feature. Therefore, each directional noun can have different names depending on the different direction definitions.

When the refrigeration component 220 is arranged on the back wall 124, compared with other installation methods of the refrigeration component 220 and the back wall 124, this structure of the present embodiment can also further reduce the size of the device in the front-to-back direction (this embodiment defines it as the depth direction of the device); when the refrigeration component 220 is arranged on the top wall 128 or the bottom wall 127, compared with other installation methods of the refrigeration component 220 and the top wall 128 or the bottom wall 127, this structure of the present embodiment can also further reduce the size of the device in the up-down direction (this embodiment defines it as the height direction of the device).

Furthermore, since the cooking chamber 120 is in a high temperature environment when cooking ingredients, the temperature is usually transferred from the cooking chamber 120 to the surroundings, and will also be transferred to the insulation valve core 233 and the driver 234 to a certain extent. When the driver 234 is a manual driver, the heat may be transferred to the user's grip. If the temperature is too high, it will affect the user's control experience. When the driver 234 is an electrically controlled driver, excessively high ambient temperature is not conducive to the working efficiency of the electrically controlled driver, and may also reduce its service life. Therefore, in some embodiments, the cooling effect of the refrigeration chamber 221 can also be used to cool the driver 234 and the insulation valve core 233.

Please refer to Figures 6, 7 and 18. In some embodiments, the heat-insulating valve core 233 and the driving member 234 are arranged on the inner side of the refrigeration chamber 221, and the cold air in the refrigeration cavity 2211 can cool down the isolation valve assembly 230. In this embodiment, the docking seat 231 is a part of the refrigeration chamber 221, and the first vent 232 is directly arranged on the chamber wall 121 of the refrigeration chamber 221. Of course, in other embodiments, the docking seat 231 can also be fixedly installed on the refrigeration chamber 221 and is not a part of the refrigeration chamber 221.

Further, please refer to Figures 6, 7 and Figures 18 and 19. In some embodiments, the refrigeration bin 221 has a base 2214 and a cover 231 (in these embodiments, the docking seat 231 serves as the cover 231), and the base 2214 and the cover 231 are fixed and enclosed to form a refrigeration cavity 2211, which includes directly enclosing the refrigeration cavity 2211 by the base 2214 and the cover 231, and also includes the base 2214 and the cover 231 together with other components to enclose the refrigeration cavity 2211. Among them, the base 2214 and the cover 231 can both be an integrally formed structure, and can also be assembled by splicing multiple sub-components.

Specifically, as an example, please refer to Figures 6, 7 and Figures 18 and 19. In some embodiments, the cover 231 has a convex shell 2314 protruding toward the base 2214, and the base 2214 has a matching portion 2215 that matches the convex shell 2314. In the illustrated embodiment, the matching portion 2215 can be in the form of a groove so that the convex shell 2314 can be embedded in the matching portion 2215 to form a positioning. The base 2214 and the cover 231 can be fixed by screws, welding, bonding, clamping, etc. In this embodiment, at least a part of the cover 231 serves as a docking seat 231, and the heat-insulating valve core 233 moves along the inner surface of the cover 231, such as translation or rotation. Of course, the docking seat 231 can also be fixed relative to the cover 231.

Further, please continue to refer to Figures 6, 7, 18 and 19. In some embodiments, an interlayer plate 2216 is further included. The interlayer plate 2216 is disposed between the base 2214 and the cover 231. The interlayer plate 2216 and the base 2214 form a first refrigeration cavity 2212. The refrigeration assembly 220 has a refrigeration element 222. At least a portion of the cooling portion 2221 of the refrigeration element 222 is disposed in the first refrigeration cavity 2212. The first refrigeration cavity 2212 can be communicated with the air outlet 2321 to guide the cold air to be discharged from the air outlet 2321. The first refrigeration cavity 2212 can also be communicated with the air inlet 2322 so that the gas from the outside or the cooking cavity 122 can enter the first refrigeration cavity 2212.

The cooling part 2221 of the refrigeration element 222 is at least partially located in the first refrigeration cavity 2212. The cooling part 2221 may include the refrigeration end of the refrigeration element 222. When a heat transfer structure is provided on the refrigeration end, the cooling part 2221 also includes the heat transfer structure. For example, referring to Figures 6, 7 and 18-20, in some embodiments, the refrigeration element 222 is a semiconductor refrigeration plate, which has a refrigeration end and a hot end. The cooling part 2221 includes the refrigeration end and a heat transfer fin connected to the refrigeration end, and the heat transfer fin is at least partially located in the first refrigeration cavity 2212. The low temperature generated by the cooling part 2221 is transferred to the air in the first refrigeration cavity 2212 through the heat transfer fin to form cold air.

Wherein, please refer to Figures 6, 7 and Figures 18-20. In some embodiments, a first fluid driving member 223 may be further provided in the first refrigeration chamber 2212. The first fluid driving member 223 is used to drive the gas to flow through the cooling portion 2221 and flow toward the air outlet 2321 to increase the discharge amount of cold air and increase the refrigeration efficiency. In the illustrated embodiment, the first fluid driving member 223 is a centrifugal fan, which may be replaced by other forms of fluid driving members 234 in other embodiments. The centrifugal fan is radially discharged, which may be arranged along the axial direction of the air inlet 2322 and arranged side by side with the cooling portion 2221, thereby reducing the space requirement of the entire first refrigeration chamber 2212 in the axial direction of the air inlet 2322 and the outlet gas, which is conducive to reducing the size in this direction.

Furthermore, the interlayer plate 2216 and the cover body 231 also enclose a second refrigeration chamber 2213, the second refrigeration chamber 2213 is communicated with or separated from the first refrigeration chamber 2212, and the heat-insulating valve core 233 and the driving member 234 are arranged in the second refrigeration chamber 2213. In the embodiments shown in Figures 6, 7 and Figures 18 and 19, the first refrigeration chamber 2212 and the second refrigeration chamber 2213 are communicated, for example, through the gap between the interlayer plate 2216 and the base 2214, so that part of the cold air can flow into the second refrigeration chamber 2213, thereby reducing the temperature in the second refrigeration chamber 2213, and then cooling the heat-insulating valve core 233, the driving member 234 and the docking seat 231 (or the cover body 231).

Of course, in other embodiments, the first refrigeration cavity 2212 and the second refrigeration cavity 2213 may also be sealed and separated, and the two are not connected, so as to ensure that the cold air in the first refrigeration cavity 2212 can be transported to the cooking cavity 122 as much as possible, thereby improving the refrigeration and cooling efficiency. At this time, although the first refrigeration cavity 2212 and the second refrigeration cavity 2213 are not connected, the cold air in the first refrigeration cavity 2212 can still be transferred to the second refrigeration cavity 2213 through the interlayer plate 2216 itself, thereby reducing the temperature in the second refrigeration cavity 2213 to a certain extent, and is used to cool the heat insulation valve core 233, the driving member 234 and the docking seat 231 (or the cover body 231).

Dividing the refrigeration chamber 2211 into a first refrigeration chamber 2212 and a second refrigeration chamber 2213 can not only make the cold air delivery more independent, but also utilize the low temperature of the cold air to cool the insulation valve core 233, the driving member 234 and the docking seat 231 (or the cover body 231), while also facilitating the compactness of the structure of the entire refrigeration assembly 220 and reducing its volume.

In order to further reduce the volume, please continue to refer to Figures 6, 7 and 18-20. In some embodiments, the interlayer plate 2216 has a recessed groove 2219 recessed into the first refrigeration cavity 2212, and the recessed groove 2219 is used to accommodate the driving member 234. In some embodiments, the recessed groove 2219 is protruded into the first refrigeration cavity 2212 so as to extend into the first refrigeration cavity 2212, thereby using the cold air in the first refrigeration cavity 2212 to cool the driving member 234. For example, in the illustrated embodiment, the recessed groove 2219 is protruded toward the first refrigeration cavity 2212 and is located in the middle of the cooling portion 2221 or in the gap between adjacent cooling portions 2221. Moreover, the recessed groove 2219 is arranged to protrude toward the first refrigeration cavity 2212, and the space in the first refrigeration cavity 2212 can be fully utilized to accommodate the driving member 234. Therefore, there is no need to set up an excessively large space in the axial direction of the air outlet 2321 to accommodate the driving member 234, thereby further reducing the size of the refrigeration component 220 in the axial direction c1 of the air outlet 2321, which is more conducive to the refrigeration component 220 to be thin and light in this direction.

In order to connect the first refrigeration cavity 2212 with the first vent 232, please continue to refer to FIG. 18. In some embodiments, the interlayer plate 2216 is provided with a second vent 2219, and the second vent 2219 is connected with the corresponding first vent 232 to achieve the passage of gas. The second vent 2219 and the corresponding first vent 232 can be directly connected or connected through other transfer structures.

Please continue to refer to Figures 6, 7 and 18-20. In some embodiments, according to the number and type of the first vents 232, the second vent 2219 can also be divided into a second air inlet 2218 and a second air outlet 2217. The second air inlet 2218 is connected to the air inlet 2322 of the docking seat 231, and the second air outlet 2217 is connected to the air outlet 2321 of the docking seat 231. Of course, when the docking seat 231 has only the air outlet 2321, the second vent 2219 can also have only the second air outlet 2217 and be connected to the air outlet 2321 of the docking seat 231.

Please continue to refer to Figures 6 and 9. In some embodiments, there may be a valve core movement gap 237 between the second air vent 2219 and the first air vent 232. The insulation valve core 233 moves in the valve core movement gap 237 to cut off and open the channel between the first air vent 232 and the corresponding second air vent 2219.

Of course, in some other embodiments, the refrigeration cavity 2211 may be further divided into more sub-refrigeration cavities, each of which is used to accommodate different components and structures. Alternatively, in some other embodiments, the refrigeration cavity 2211 may not be divided into multiple sub-refrigeration cavities, that is, the refrigeration cavity 2211 is a connected cavity. For example, the first refrigeration cavity 2212 in Figures 6, 7 and 20 is closed and used as an independent refrigeration cavity 2211. In this case, the isolation valve assembly 230 may be set in the first refrigeration cavity 2212, or it may be installed on the interlayer plate 2216 according to the current structure. In this case, the interlayer plate 2216 serves as the warehouse wall 121 of the refrigeration warehouse 221.

The above shows some embodiments in which the isolation valve assembly 230 is arranged in the refrigeration bin 221. In addition, the isolation valve assembly 230 can also be arranged outside the refrigeration bin 221. Please refer to FIG. 21 for some embodiments. The heat insulation valve core 233 and the driving member 234 are arranged outside the refrigeration bin 221, and the docking seat 231 is a part of the refrigeration bin 221 or is fixed on the refrigeration bin 221.

When the isolation valve assembly 230 is disposed outside the refrigeration chamber 221, in some embodiments, the side of the refrigeration chamber 221 facing the driver 234 may also have a recessed groove 2219, the recessed groove 2219 is recessed from the side where the cooking cavity 122 is located toward the inside of the refrigeration cavity 2211, and the driver 234 is embedded in the recessed groove 2219. The back side of the recessed groove 2219 protrudes toward the inside of the refrigeration cavity 2211, so as to cool the driver 234 through the cold air in the refrigeration cavity 2211, and at the same time, the space of the refrigeration cavity 2211 can be used to accommodate the driver 234, thereby improving the compactness of the structure and reducing the axial size of the vent.

Furthermore, the first vent 232 may be directly connected to the cooking chamber 120, or may be connected to the cooking chamber 120 through a transition structure. Referring to FIGS. 5 and 14 , in some embodiments, the first vent 232 is directly inserted into the cooking cavity 122 of the cooking chamber 120. A filter 2323 may be provided at one end of the first vent 232 inserted into the cooking cavity 122 to prevent food residue from entering the first vent 232. Of course, in other embodiments, the first vent 232 may also be connected to the docking port on the cooking chamber 120, or may be inserted into the first vent 232 through the docking port on the cooking chamber 120.

Please refer to Figures 16 and 17. In some embodiments, the docking seat 231 itself can be an integrally formed structure, such as an integrally formed metal or other material. The first vent 232 can be set through the integrally formed structure. In addition, the docking seat 231 can also be assembled and combined by multiple parts. Please refer to Figures 8-11. In some embodiments, the docking seat 231 includes a seat body 2311 and a docking head 2312 set on the seat body 2311, and the first vent 232 is set through the docking head 2312. Depending on the number and type of the first vent 232, the docking head 2312 can be one or more. The docking seat 231 can be connected to the cooking chamber 120 through the docking head 2312. As shown in Figures 5 and 14, one end of the docking head 2312 is directly inserted into the cooking chamber 120, and the other end of the docking head 2312 is used to directly or indirectly connect to the refrigeration chamber 2211.

Further, please refer to Figures 8-11, 16 and 17, and 22-29. In some embodiments, the first vent 232 can be divided into an outlet 2321 and an inlet 2322. At this time, the same driver 234 is used to control the heat-insulating valve core 233 to synchronously open and close the inlet 2322 and the outlet 2321. Specifically, when the heat-insulating valve core 233 is in the closed position, the heat-insulating valve core 233 simultaneously cuts off the outlet 2321 and the inlet 2322; when the heat-insulating valve core 233 is in the open position, the heat-insulating valve core 233 simultaneously opens the outlet 2321 and the inlet 2322. This method of using the same driver 234 to control the heat-insulating valve core 233 to synchronously open and close the inlet 2322 and the outlet 2321 can save the number of drivers 234, thereby simplifying the structure, which is conducive to making the structure more compact and smaller in size.

Of course, in some other embodiments, different driving members 234 and heat-insulating valve cores 233 may be respectively provided for the air outlet 2321 and the air inlet 2322 to perform on-off control.

Further, the docking seat 231 may be one or more. When there are multiple first vents 232, these first vents 232 may be arranged on the same docking seat 231 or on different docking seats 231. For example, as shown in the embodiments of FIGS. 8-11, 16 and 17, and 28 and 29, the air inlet 2322 and the air outlet 2321 as the first vent 232 may be arranged on the same docking seat 231. For another example, as shown in FIGS. 22-27, the air inlet 2322 and the air outlet 2321 as the first vent 232 may be arranged on different docking seats 231, respectively.

Specifically, please refer to Figures 8-11, Figures 16 and 17, and Figures 28 and 29. In some embodiments, the docking seat 231 is one, and the docking seat 231 may have at least two first air vents 232 at the same time. The first air vents 232 are divided into an air outlet 2321 and an air inlet 2322. The driving member 234 is installed on the docking seat 231 and is located in the area between the air outlet 2321 and the air inlet 2322, so as to make full use of the area between the air outlet 2321 and the air inlet 2322.

Please refer to Figures 8-11, 16 and 17. In some embodiments, the driving member 234 is a motor, specifically a rotary motor. The transmission mechanism is a screw-nut transmission pair, and the motor is connected to the screw 2381 of the screw-nut transmission pair. The motor outputs a rotational motion to drive the screw 2381 to rotate, and then the transmission nut 2382 reciprocates along the axial direction of the screw 2381. The nut 2382 of the screw-nut transmission pair is connected to the insulation valve core 233 to drive the insulation valve core 233 to reciprocate along the axial direction of the screw 2381, so as to realize the switching of the insulation valve core 233 between the open position and the closed position. This transmission method is simple and stable, which is conducive to the simplification of the entire structural volume, and is also convenient for realizing the control of the insulation valve core 233 on the air inlet 2322 and the air outlet 2321.

Please refer to Figures 24-27. In some embodiments, the driving member 234 is a motor, specifically a rotary motor. The transmission mechanism is a rack-and-pinion mechanism. The motor is connected to a driving gear 2384 of the rack-and-pinion mechanism. The rack-and-pinion mechanism has at least one rack 2385. The driving gear 2384 is meshed with the rack 2385. The insulation valve core 233 and the corresponding rack 2385 form a linkage structure of the insulation valve core 233. The rack 2385 drives the insulation valve core 233 to switch between the closed position and the open position.

When the first vent 232 is divided into an air inlet 2322 and an air outlet 2321, please refer to Figures 24-27. In some embodiments, the axis of the driving gear 2384 is parallel to the axis c1 of the first vent 232. There are two racks 2385, and the two racks 2385 are relatively arranged on both sides of the driving gear 2384. The driving gear 2384 is located in the area between the air outlet 2321 and the air inlet 2322. Each rack 2385 forms a linkage structure of the heat-insulating valve core 233 with a heat-insulating valve core 233 to drive the two heat-insulating valve cores 233 to approach or depart from each other. The air outlet 2321 and the air inlet 2322 are respectively controlled to be cut off and opened by the corresponding heat-insulating valve core 233.

As shown in FIG25, when the two racks 2385 are retracted, since the insulation valve core 233 and the rack 2385 overlap in the height shown in the figure, they can only return to the state shown in FIG25 at most, which will cause the entire isolation valve assembly 230 to be relatively long in the left-right direction shown in the figure. In this regard, please refer to FIG26. In some embodiments, in the insulation valve core 233 linkage structure, the insulation valve core 233 and the rack 2385 form a step shape in the axial direction of the driving gear 2384. When the insulation valve core 233 retracts toward the driving gear 2384, the insulation valve core 233 of one insulation valve core 233 linkage structure and the rack 2385 of another insulation valve core 233 linkage structure are stacked in the axial direction of the driving gear 2384. Since the step-shaped structure forms a avoidance for the insulation valve core 233, the two insulation valve cores 233 can be retracted to a closer position, thereby reducing the length of the isolation valve assembly 230 in the left-right direction shown in the figure.

In addition, please refer to FIG. 27 , in another embodiment, at least one pinion 2386 is provided between the rack 2385 and the driving gear 2384 to open the gap between the two racks 2385, and when the heat-insulating valve core 233 is retracted toward the driving gear 2384, the heat-insulating valve core 233 is accommodated in the gap. Therefore, the two heat-insulating valve cores 233 can be retracted to a closer position, thereby reducing the length of the isolation valve assembly 230 in the left-right direction of the figure.

Further, please refer to Figures 24-27. In some embodiments, there are at least two docking seats 231, the air outlet 2321 and the air inlet 2322 are respectively arranged on two different docking seats 231, and the driving member 234 is located in the area between the two docking seats 231 to fully utilize the space between the two docking seats 231 and improve the compactness of the structure.

The transmission mechanisms shown in the above embodiments may also be replaced by various publicly known transmission mechanisms such as a synchronous belt transmission pair or a worm gear transmission pair.

Further, in addition to the above-mentioned translational motion, the heat-insulating valve core 233 can also perform rotational motion. Please refer to Figures 28-29. In some embodiments, the heat-insulating valve core 233 assembly also has a guide structure 2388, the driving member 234 is fixedly arranged relative to the docking seat 231, the driving member 234 or the transmission mechanism outputs a linear reciprocating motion, and the heat-insulating valve core 233 cooperates with the guide structure 2388 to convert the linear reciprocating motion output by the driving member 234 into a rotational reciprocating motion of the heat-insulating valve core 233. Among them, the driving member 234 can be a structure that can output linear reciprocating motion, such as a linear motor, a cylinder, a liquid cylinder, an electromagnet, etc., so that the heat-insulating valve core 233 is directly driven by the driving member 234. In addition, the driving member 234 can also be a rotary motor, which outputs a rotary motion, and then converts the rotary motion into a reciprocating linear motion through a transmission mechanism. The transmission mechanism can adopt a screw nut transmission pair, a gear rack transmission pair, a synchronous belt transmission pair, or a worm gear transmission pair, etc.

Please refer to Figures 28-29, in some embodiments, the heat-insulating valve core 233 is rotatably connected relative to the docking seat 231, the guide structure 2388 on the docking seat 231 is a guide column with a protruding arrangement, the heat-insulating valve core 233 is provided with a guide groove that matches the guide column, and the driving member 234 drives the guide column to reciprocate linearly to drive the heat-insulating valve core 233 to rotate. And/or, in other embodiments, the guide structure 2388 on the docking seat 231 can also be replaced with a guide groove, and the heat-insulating valve core 233 is provided with a guide column that matches the guide groove.

Specifically, the driving member 234 is a rotating motor, and the transmission mechanism is a screw-nut transmission pair. The nut 2382 of the screw-nut transmission pair is linked with the guide column or guide groove. When the guide column or guide groove is driven to perform linear reciprocating motion, since the thermal insulation valve core 233 can only rotate, the linear reciprocating motion will be converted into a rotational motion of the thermal insulation valve core 233, thereby cutting off and opening the air inlet 2322 and the air outlet 2321.

Furthermore, in some embodiments, the elastic preload member 239 includes a second elastic member 2391, and the output end of the driving member 234 forms a floating connection with the heat-insulating valve core 233 through the second elastic member 2391. The second elastic member 2391 is used to provide the heat-insulating valve core 233 with an elastic restoring force that drives the heat-insulating valve core 233 to move toward the docking seat 231, so as to cause the heat-insulating valve core 233 to fit the docking seat 231. When a transmission mechanism is provided between the output end of the driving member 234 and the heat-insulating valve core 233, the second elastic member 2391 may be provided between the transmission mechanism and the heat-insulating valve core 233.

Please refer to Figures 15 and 17. In some embodiments, the transmission mechanism is a screw-nut transmission pair. At this time, the nut 2382 is movably connected to the thermal insulation valve core 233. A second elastic member 2391 is provided between the nut 2382 and the thermal insulation valve core 233. The second elastic member 2391 is used to provide an elastic restoring force to the thermal insulation valve core 233 to drive the thermal insulation valve core 233 to move toward the docking seat 231, so as to prompt the thermal insulation valve core 233 to fit the docking seat 231.

Please refer to Figures 24-27. In some embodiments, the transmission mechanism is a gear rack mechanism. The rack 2385 is movably connected to the heat-insulating valve core 233, and a second elastic member 2391 is provided between the rack 2385 and the heat-insulating valve core 233. The second elastic member 2391 is used to provide an elastic restoring force to the heat-insulating valve core 233 to drive the heat-insulating valve core 233 to move toward the docking seat 231, so as to cause the heat-insulating valve core 233 to fit the docking seat 231.

Please refer to Figures 28-29. In some embodiments, when the insulation valve core 233 rotates relative to the docking seat 231, the insulation valve core 233 may also be provided with a second elastic member 2391. The second elastic member 2391 is used to provide the insulation valve core 233 with an elastic restoring force that drives the insulation valve core 233 to move toward the docking seat 231, so as to prompt the insulation valve core 233 to fit the docking seat 231.

Furthermore, the driving member 234 can be installed on the docking seat 231, or can be installed on other structures, for example, other structures fixed relative to the docking seat 231, such as the refrigeration chamber 221, the partition plate 2216, the cooking chamber 120 or other structures, etc.

Please refer to Figures 8, 15 and 16. In some embodiments, the isolation valve assembly 230 includes a driver bracket 2387, which is fixedly arranged relative to the docking seat 231, and the driver 234 is installed on the driver bracket 2387. In order to make the structure more compact, a heat-insulating valve core channel 2388 is reserved between the driver bracket 2387 and the docking seat 231. The heat-insulating valve core 233 is located in the heat-insulating valve core channel 2388 and passes through the driver bracket 2387. In the embodiments shown in Figures 8, 15 and 16, the driver bracket 2387 is installed on the docking seat 231 (or the cover body 231). Of course, in other embodiments, the driver bracket 2387 can also be installed on other structures, such as the interlayer plate 2216 or the base 2214 of the refrigeration chamber 221.

Furthermore, in addition to forming a floating connection structure between the output end of the driving member 234 and the heat-insulating valve core 233, another elastic pre-tightening member 239 may be provided at the first vent 232 to enhance the sealing effect between the heat-insulating valve core 233 and the first vent 232. In some embodiments, a first elastic member 2392 is further included, and the first elastic member 2392 is used to provide a pre-tightening force to the heat-insulating valve core 233 so that the heat-insulating valve core 233 presses the first vent 232.

Please refer to Figures 8, 9, 15-17, in some embodiments, a pressing seat 240 is correspondingly provided at one end of the first vent 232, and a valve core movement gap 237 is reserved between the pressing seat 240 and the docking seat 231 for the heat-insulating valve core 233 to enter and exit. The first elastic member 2392 is directly or indirectly connected to the pressing seat 240, and provides an elastic restoring force to the pressing seat 240 to drive the pressing seat 240 to move toward the docking seat 231, so as to press the heat-insulating valve core 233 against the first vent 232 when the heat-insulating valve core 233 is in the closed position.

Please refer to Figures 8, 9, 15-17. In some embodiments, the pressure seat 240 has a docking port 241, which is connected to the first air vent 232. The valve core movement gap 237 is located between the docking port 241 and the first air vent 232. The end of the docking port 241 away from the first air vent 232 is used to communicate with the cooking cavity 122 or the refrigeration cavity 2211. The insulation valve core 233 can control the on and off states of the cooking cavity 122 and the refrigeration cavity 2211 by cutting off and opening the channel between the docking port 241 and the first air vent 232.

Of course, in other embodiments, the pressing seat 240 may only play the role of pressing the heat-insulating valve core 233 and is not used to connect the refrigeration cavity 2211 and the cooking cavity 122.

More specifically, please refer to Figures 8, 9, 15-17. In some embodiments, a plurality of limiting posts 242 are provided on the docking seat 231, the pressing seat 240 is movably mounted on the limiting posts 242, and the first elastic member 2392 is provided between the limiting posts 242 and the pressing seat 240 to press the pressing seat 240 toward the docking seat 231. The limiting posts 242 can be fixedly mounted on the docking seat 231 or other structures relatively fixed to the docking seat 231. In addition, the first elastic member 2392 can also be indirectly connected to the pressing seat 240 to apply elastic force to the pressing seat 240.

Further, please refer to FIG9 , in some embodiments, at least one of the pressing seat 240 and the docking seat 231 is provided with a protrusion 244 arranged around the axis c1 of the first vent 232, and when the heat-insulating valve core 233 is in the closed position, the protrusion 244 and the heat-insulating valve core 233 are tightly sealed. The protrusion 244 can reduce the contact area between the pressing seat 240 and the docking seat 231 and the heat-insulating valve core 233, so that the pressing force between the two is more concentrated and larger, thereby improving the sealing performance. Please refer to FIG9 and 15 , in some embodiments, the protrusion 244 can be a closed annular structure.

Furthermore, the radial cross-section of the first air vent 232 can be various shapes. As shown in Figures 16 and 17, the radial cross-section of the first air vent 232 is circular. In addition, the radial cross-section of the first air vent 232 can also be elliptical, triangular, and various polygonal. In addition, the radial cross-section of the first air vent 232 can also be irregular, as long as it does not affect the flow of airflow.

11 and 17 , in some embodiments, the heat-insulating valve core 233 has a sealing portion 2331 and a communication port 2332, and the number of the sealing portion 2331 and the communication port 2332 corresponds to the number of the first vents 232. When the heat-insulating valve core 233 is in the closed position, the sealing portion 2331 cuts off the first vent 232; when the heat-insulating valve core 233 is in the open position, the communication port 2332 is aligned with the first vent 232, and the first vent 232 is opened.

Please refer to Figures 22 and 23. In some embodiments, at least one end of the insulation valve core 233 may not be provided with a connecting port 2332, and only has a sealing portion 2331. The number of the sealing portions 2331 corresponds to the number of the first air vents 232. When the insulation valve core 233 is located in the closed position, the sealing portion 2331 cuts off the first air vent 232; when the insulation valve core 233 is located in the open position, the sealing portion 2331 moves away from the first air vent 232 to expose at least a portion of the first air vent 232 to open the first air vent 232.

Further, in order to limit the movement limit position of the heat-insulating valve core 233, in some embodiments, please refer to Figures 8 and 10, the isolation valve assembly 230 also includes at least one position detection unit 246 and a control unit 300 (the control unit 300 in the figure is only a simple schematic diagram), the position detection unit 246 is used to detect whether the heat-insulating valve core 233 moves to the limit position, and the control unit 300 controls the heat-insulating valve core 233 to stop moving according to the feedback signal of the position detection unit 246. The position detection unit 246 can adopt various publicly known structures that can realize position detection, such as photoelectric sensors, Hall sensors, pressure position sensors, grating detection modules, etc.

Furthermore, in order to prevent the position detection unit 246 from failing and being unable to limit the movement limit position of the thermal insulation valve core 233, in some embodiments, please refer to Figures 8 and 10, a mechanical limit structure 247 is also included. The mechanical limit structure 247 is located on the movement trajectory of the thermal insulation valve core 233 or other components linked to the thermal insulation valve core 233, and is used to block the movement of the thermal insulation valve core 233 or other components linked to the thermal insulation valve core 233. The mechanical limit structure 247 is usually a bump or other mechanical structure that can block the movement of the thermal insulation valve core 233 and other components linked to the thermal insulation valve core 233. Of course, correspondingly, the thermal insulation valve core 233 is also provided with a protrusion 2333 that cooperates with the position detection unit 246 and/or the mechanical limit structure 247, so as to trigger the position detection unit 246 and/or form a limit with the mechanical limit structure 247.

In some embodiments of the present application, a food cooking device 1 is also provided, which includes a cooking chamber 120, and the cooking chamber 120 has a cooking cavity 122 for placing food. The cooking chamber 120 can adopt but is not limited to the above-mentioned heating component 140 to achieve cooking of food. At the same time, the food cooking device also has an isolation valve assembly 230 as shown in any of the above embodiments, and the cooking cavity 122 is connected to the first vent 232 of the isolation valve assembly 230, and the first vent 232 is also connected to another object, which can be but is not limited to the refrigeration assembly 220. Through the control of the isolation valve assembly 230, the connection between the cooking cavity 122 and other objects can be conveniently cut off and opened, and it can also play a role in heat insulation.

The above embodiments demonstrate the application of the isolation valve assembly 230 in the food cooking device 1. Of course, in other embodiments, the isolation valve assembly 230 can also be applied to other technical fields requiring fluid control.

Those skilled in the art will appreciate that many changes may be made to the details of the above-described embodiments without departing from the basic principles of the invention. Accordingly, the scope of the invention should be determined from the following claims.

Claims

A hot and cold isolation device for food cooking equipment, characterized by comprising:

A cooking chamber, wherein the cooking chamber has a cooking cavity for placing food;

A heating component, the heating component is used to heat the food placed in the cooking cavity;

A refrigeration assembly, wherein the refrigeration assembly has a refrigeration cavity, and the refrigeration assembly is capable of forming cold air in the refrigeration cavity;

and an isolation valve assembly, the isolation valve assembly comprising a docking seat, a heat-insulating valve core and an elastic preload member, the docking seat being a part of the refrigeration assembly or the cooking chamber, or the docking seat being fixedly arranged relative to the refrigeration assembly and/or the cooking chamber, the docking seat having at least one first vent arranged through, the refrigeration assembly and the cooking chamber being connected through the first vent, the refrigeration assembly being able to at least input cold air into the cooking chamber to reduce the temperature in the cooking chamber;

The thermal insulation valve core can move relative to the docking seat to cut off and open the first air vent; the elastic preload member acts directly or indirectly on the thermal insulation valve core, and provides the thermal insulation valve core with a preload force that causes the thermal insulation valve core to press against the docking seat, so as to improve the sealing effect between the thermal insulation valve core and the first air vent.
The hot and cold isolation device according to claim 1 is characterized in that the elastic preload member includes a first elastic member, and the first elastic member can provide a preload force to the thermal insulation valve core to press the thermal insulation valve core against the first vent.
The hot and cold isolation device as described in claim 2 is characterized in that the isolation valve assembly includes at least one pressure seat, and the pressure seat is correspondingly provided at one end of at least one first air vent, and an entry and exit gap for the thermal insulation valve core to enter and exit is reserved between the pressure seat and the docking seat, and the first elastic member is directly or indirectly connected to the pressure seat, and provides a pre-tightening force to the pressure seat to drive the pressure seat to move toward the docking seat, so as to press the thermal insulation valve core against the first air vent when the thermal insulation valve core moves to the first air vent.
The hot and cold isolation device according to claim 3 is characterized in that the pressure seat has a docking port, the docking port is connected to the first vent, the inlet and outlet gap is located between the docking port and the first vent, and the end of the docking port facing away from the first vent is used to communicate with the cooking cavity or the refrigeration cavity.
The hot and cold isolation device according to claim 3 or 4 is characterized in that a plurality of limiting columns are provided on the docking seat, the pressing seat is movably mounted on the limiting columns, and the first elastic member is provided between the limiting columns and the pressing seat to press the pressing seat toward the docking seat.
The hot and cold isolation device according to any one of claims 1 to 5 is characterized in that at least one of the pressing seat and the docking seat is provided with a protrusion arranged around the axis of the first vent, and when the thermal insulation valve core is in the closed position, the protrusion is tightly sealed against the thermal insulation valve core.
The hot and cold isolation device according to claim 6, characterized in that the docking seat comprises a seat body and at least one docking head, the seat body has an assembly hole, the docking head is fixedly installed in the assembly hole, the docking head has the first vent arranged through, and the end of the docking head facing the insulation valve core has the protrusion;

Alternatively, the docking seat is an integrally formed structure.
The hot and cold isolation device according to claim 7 is characterized in that an end of the docking joint facing away from the insulation valve core protrudes from the seat body for docking with the cooking chamber or the refrigeration component.
The hot and cold isolation device according to any one of claims 1 to 8 is characterized in that the isolation valve assembly has a driving member, the driving member is connected to the thermal insulation valve core, and is used to drive the thermal insulation valve core to move; the driving member is an electrically controlled driving member and/or a manual driving member.
The hot and cold isolation device as described in claim 9 is characterized in that the elastic preload member includes a second elastic member, the output end of the driving member forms a floating connection with the thermal insulation valve core through the second elastic member, and the second elastic member is used to provide a preload force to the thermal insulation valve core to drive the thermal insulation valve core to move toward the docking seat, so as to cause the thermal insulation valve core to fit the docking seat.
The hot and cold isolation device as described in claim 10 is characterized in that the isolation valve assembly has a transmission mechanism, the output end of the driving member is connected to the transmission mechanism to drive the transmission mechanism to move, and the transmission mechanism and the insulation valve core are movably connected to drive the insulation valve core to move; the second elastic member is arranged between the transmission mechanism and the insulation valve core.
The hot and cold isolation device as described in claim 11 is characterized in that the driving member is a motor, the transmission mechanism is a screw-nut transmission pair, the motor is connected to the screw of the screw-nut transmission pair, and the nut of the screw-nut transmission pair is connected to the thermal insulation valve core to drive the thermal insulation valve core to reciprocate along the axial direction of the screw; the second elastic member is provided between the nut and the thermal insulation valve core, and the second elastic member is used to provide a pre-tightening force to the thermal insulation valve core to drive the thermal insulation valve core to move toward the docking seat.
The hot and cold isolation device as described in claim 12 is characterized in that the docking seat has at least two first air vents, the first air vents are divided into an air outlet and an air intake, and the driving member is installed on the docking seat and is located in the area between the air outlet and the air intake.
The hot and cold isolation device according to claim 11 is characterized in that the driving member is a motor, the transmission mechanism is a gear rack mechanism, the motor is connected to the driving gear of the gear rack mechanism, the gear rack mechanism has at least one rack, the driving gear is meshed with the rack, the thermal insulation valve core and the corresponding rack form a valve core linkage structure, and the rack drives the thermal insulation valve core to move relative to the docking seat.
The hot and cold isolation device as described in claim 14 is characterized in that the axis of the driving gear is parallel to the axis of the first air vent, the first air vent is divided into an air outlet and an air intake, there are two racks, the two racks are relatively arranged on both sides of the driving gear, and the driving gear is located in the area between the air outlet and the air intake, each of the racks is respectively connected to a thermal insulation valve core to form the valve core linkage structure to drive the two thermal insulation valve cores to approach or move away from each other, and the air outlet and the air intake are respectively controlled to be cut off and opened by the corresponding thermal insulation valve core.
The hot and cold isolation device as described in claim 15 is characterized in that, in the valve core linkage structure, the thermal insulation valve core and the rack form a step shape in the axial direction of the driving gear, and when the thermal insulation valve core retracts toward the driving gear, the thermal insulation valve core of one valve core linkage structure and the rack of another valve core linkage structure are stacked in the axial direction of the driving gear.
The hot and cold isolation device as described in claim 15 is characterized in that a pinion is meshed between the rack and the driving gear to open the gap between the two racks, and when the insulation valve core retracts toward the driving gear, the insulation valve core is received in the gap.
The hot and cold isolation device as described in any one of claims 14-17 is characterized in that there are at least two docking seats, the first air vent is divided into an air outlet and an air intake, the air outlet and the air intake are respectively arranged on the supporting surfaces of two different docking seats, and the driving member is located in the area between the two docking seats.
The hot and cold isolation device according to any one of claims 14 to 18 is characterized in that the rack is movably connected to the thermal insulation valve core, and a second elastic member is provided between the rack and the thermal insulation valve core, and the second elastic member is used to provide a pre-tightening force to the thermal insulation valve core to drive the thermal insulation valve core to move toward the docking seat, so as to cause the thermal insulation valve core to fit the docking seat.
The hot and cold isolation device as described in any one of claims 12-19 is characterized in that the isolation valve assembly includes a drive member bracket, the drive member bracket is fixedly arranged relative to the docking seat, the drive member is installed on the drive member bracket, and a thermal insulation valve core channel is reserved between the drive member bracket and the docking seat, the thermal insulation valve core is located in the thermal insulation valve core channel and passes through the drive member bracket.
The hot and cold isolation device as described in claim 11 is characterized in that the thermal insulation valve assembly also has a guide structure, the driving member is fixedly arranged with the docking seat, the driving member outputs a linear reciprocating motion, and the thermal insulation valve core cooperates with the guide structure to convert the linear reciprocating motion output by the driving member into a rotational reciprocating motion of the thermal insulation valve core.
The hot and cold isolation device as described in claim 21 is characterized in that the thermal insulation valve core is rotatably connected to the docking seat, one of the guide structure and the thermal insulation valve is provided with a guide column with a protrusion, and the other is provided with a guide groove cooperating with the guide column, and the driving member drives the guide column or the guide groove to reciprocate linear motion to drive the thermal insulation valve core to rotate.
The hot and cold isolation device as described in claim 21 or 22 is characterized in that the driving member is a motor, and the motor is connected to the guide column through a screw and nut transmission pair, a gear rack transmission pair, a synchronous belt transmission pair or a worm gear transmission pair to drive the guide column to perform reciprocating linear motion.
The hot and cold isolation device according to any one of claims 1 to 11 is characterized in that the first air vent is divided into an air outlet and an air intake, and under the drive of the driving member, the thermal insulation valve core synchronously cuts off and opens the air outlet and the air intake.
The hot and cold isolation device according to any one of claims 1 to 24 is characterized in that the movement mode of the thermal isolation valve core is translation or rotation.
The hot and cold isolation device according to any one of claims 1 to 25 is characterized in that the thermal insulation valve core moves along the outer surface of the docking seat, and the component of the thermal insulation valve core movement trajectory on the outer surface of the docking seat is greater than zero.
The hot and cold isolation device according to any one of claims 1 to 26, characterized in that the thermal insulation valve core is inserted into the first vent and withdrawn from the first vent along the radial direction of the first vent.
The hot and cold isolation device according to any one of claims 1 to 27 is characterized in that the heating component includes at least one of a steam heating component and an electric baking heating component.
An isolation valve assembly for food cooking equipment, characterized by comprising:

A docking seat, wherein the docking seat has at least one first vent disposed therethrough, wherein the first vent is used for passage of gas;

a heat-insulating valve core, wherein the heat-insulating valve core can move relative to the docking seat to cut off and open the first vent;

and an elastic pre-tightening member, wherein the elastic pre-tightening member acts on the thermal insulation valve core directly or indirectly and provides a pre-tightening force to the thermal insulation valve core to cause the thermal insulation valve core to press against the docking seat, so as to improve the sealing effect between the thermal insulation valve core and the first vent.
The isolation valve assembly as described in claim 29 is characterized in that the elastic preload member includes a first elastic member, and the first elastic member can provide a preload force to the thermal insulation valve core to make the thermal insulation valve core press the first vent.
The isolation valve assembly as described in claim 30 is characterized in that the isolation valve assembly includes at least one pressure seat, and the pressure seat is correspondingly provided at one end of at least one of the first air vents, and an entry and exit gap for the thermal insulation valve core to enter and exit is reserved between the pressure seat and the docking seat, and the first elastic member is directly or indirectly connected to the pressure seat, and provides a pre-tightening force to the pressure seat to drive the pressure seat to move toward the docking seat, so as to press the thermal insulation valve core against the first air vent when the thermal insulation valve core moves to the first air vent.
The isolation valve assembly as described in claim 30 or 31 is characterized in that a plurality of limiting columns are provided on the docking seat, the pressure seat is movably mounted on the limiting columns, and the first elastic member is provided between the limiting columns and the pressure seat to press the pressure seat toward the docking seat.
The isolation valve assembly as described in any one of claims 29-32 is characterized in that the elastic preload member includes a second elastic member, and the isolation valve assembly has a driving member, and the driving member is connected to the thermal insulation valve core to drive the thermal insulation valve core to move; the driving member is an electrically controlled driving member and/or a manual driving member; the driving member and the thermal insulation valve core form a floating connection through the second elastic member, and the second elastic member is used to provide a preload force to the thermal insulation valve core to drive the thermal insulation valve core to move toward the docking seat, so as to prompt the thermal insulation valve core to fit the docking seat.
The isolation valve assembly as described in claim 33 is characterized in that the driving member is a motor, the transmission mechanism is a screw-nut transmission pair, the motor is connected to the screw of the screw-nut transmission pair, and the nut of the screw-nut transmission pair is connected to the thermal insulation valve core to drive the thermal insulation valve core to reciprocate along the axial direction of the screw; the second elastic member is provided between the nut and the thermal insulation valve core, and the second elastic member is used to provide a pre-tightening force to the thermal insulation valve core to drive the thermal insulation valve core to move toward the docking seat.
The isolation valve assembly as described in claim 33 is characterized in that the driving member is a motor, the transmission mechanism is a gear rack mechanism, the motor is connected to the driving gear of the gear rack mechanism, the gear rack mechanism has at least one rack, the driving gear is meshed with the rack, the rack and the thermal insulation valve core are movably connected, and the second elastic member is provided between the rack and the thermal insulation valve core, the second elastic member is used to provide a pre-tightening force to the thermal insulation valve core to drive the thermal insulation valve core to move toward the docking seat, so as to prompt the thermal insulation valve core to fit the docking seat; the rack drives the thermal insulation valve core to move relative to the docking seat.
The isolation valve assembly as described in claim 33 is characterized in that the thermal insulation valve assembly also has a guide structure, the driving member is fixedly arranged with the docking seat, the driving member outputs linear reciprocating motion, the thermal insulation valve core is rotatably connected with the docking seat, one of the guide structure and the thermal insulation valve is provided with a guide column with a protrusion, and the other is provided with a guide groove cooperating with the guide column, and the driving member drives the guide column or the guide groove to reciprocate linear motion to drive the thermal insulation valve core to rotate.
The isolation valve assembly according to any one of claims 29 to 33 is characterized in that the movement mode of the thermal insulation valve core is translation or rotation.
The isolation valve assembly as described in any one of claims 29-37 is characterized in that the thermal insulation valve core moves along the outer surface of the docking seat, and the component of the movement trajectory of the thermal insulation valve core on the outer surface of the docking seat is greater than zero.
A food cooking device, characterized by comprising:

A cooking chamber, wherein the cooking chamber has a cooking cavity for placing food;

and an isolation valve assembly as claimed in any one of claims 29 to 38 above;

Wherein, the cooking cavity is communicated with the first vent.
A food cooking device, characterized in that it comprises a hot and cold isolation device as described in any one of claims 1 to 28 or an isolation valve assembly as described in any one of claims 29 to 38.