Air-cooled cooking utensil

Abstract

The utility model discloses an air-cooled cooking utensil which comprises a pot body and a pot cover buckled on the pot body, the pot cover comprises a pressure-bearing steel cover and an outer cover assembly connected with the pressure-bearing steel cover, and the pot body comprises an inner pot and an outer pot; a first fan is arranged on the cooker cover, a second fan is arranged on the side wall of the cooker body, and a first air duct is arranged between the pressure-bearing steel cover and the outer cover assembly to guide air flow formed by the first fan; a second air channel is arranged between the inner pot and the outer pot to guide air flow formed by the second fan, and the first air channel and the second air channel are isolated from each other. According to the utility model, the first fan is arranged on the pot cover, the second fan is arranged on the side wall of the pot body, and the first air duct on the pot cover and the second air duct on the pot body are isolated from each other, so that air flows formed by the first fan and the second fan flow in the respective air ducts and complete circulation in the air cooling depressurization process, and mixing cannot occur; heat exchange between two air flows is avoided, the heat exchange efficiency is guaranteed, and the overall pressure reduction time is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen appliances, and in particular relates to an air-cooled cooking utensil. Background Art

[0002] After cooking viscous foods such as porridge or soup in a pressure cooking appliance (such as a pressure cooker), if the pressure is released by traditional exhaust, not only will the pressure release last for a long time and require a long waiting time, but the soup will also be discharged along with the gas, causing overflow.

[0003] Therefore, in the prior art, some pressure cooking appliances are provided with air cooling devices. After the pressure cooking is completed, cold air is blown to the inner pot or the pot cover to quickly reduce the air pressure in the pot, thereby achieving rapid pressure relief.

[0004] The air cooling device is generally arranged on the pot cover or the pot body. When the air cooling device is started, the cold air can only cool one of the pot cover or the inner pot, resulting in a small cooling area for the high-temperature gas in the pot and a low cooling efficiency.

[0005] Some pressure cooking appliances are equipped with air cooling devices on both the lid and the pot body. When the air cooling is used to reduce the pressure, the two air cooling devices are activated together. However, in general, the air duct on the lid of such pressure cooking appliances is connected to the air duct on the pot body, and the two air flows form a large cycle between the lid and the pot body of the pressure cooking appliance. For example, the cold air enters the air duct on the lid from the air cooling device of the lid, then goes down into the air duct on the pot body, and then is discharged to the outside. After the air flow contacts the lid, it takes away part of the heat of the lid, causing the temperature of the air flow to rise. Therefore, when this part of the air flow flows into the pot body, the temperature difference with the inner pot is greatly reduced, and the heat exchange efficiency between the two is also significantly reduced, resulting in poor cooling effect on the inner pot, which in turn affects the overall pressure reduction efficiency. Utility Model Content

[0006] The utility model provides an air-cooling cooking utensil to solve the problems of low pressure reduction efficiency and long pressure reduction time of the existing air-cooling device, which affect the use experience.

[0007] The technical solution adopted by the utility model is:

[0008] A wind-cooled cooking utensil comprises a pot body and a pot cover buckled on the pot body, the pot cover comprises a pressure-bearing steel cover and an outer cover assembly connected to the pressure-bearing steel cover, the pot body comprises an inner pot and an outer pot; a first fan is arranged on the pot cover, a second fan is arranged on the side wall of the pot body, a first air duct is arranged between the pressure-bearing steel cover and the outer cover assembly to guide the wind flow formed by the first fan; a second air duct is arranged between the inner pot and the outer pot to guide the wind flow formed by the second fan, and the first air duct and the second air duct are isolated from each other.

[0009] The air-cooled cooking appliance of the utility model also has the following additional technical features:

[0010] The first fan is arranged above the pressure-bearing steel cover, and the air outlet of the first fan faces the top surface of the pressure-bearing steel cover; or, the first fan is arranged on one lateral side of the pressure-bearing steel cover, and the air outlet of the first fan faces the center of the pressure-bearing steel cover.

[0011] The air outlet of the first air duct faces upwards of the pot cover, and the air outlet of the second air duct faces the side of the pot body, so that the air outlet of the first air duct and the air outlet of the second air duct are isolated from each other.

[0012] The outer cover assembly includes a surface cover located above the pressure-bearing steel cover and a supporting cantilever located above the surface cover. The first air duct is located between the surface cover and the pressure-bearing steel cover. The first fan is arranged on the supporting cantilever. The surface cover is provided with a docking port for connecting the first fan and the first air duct.

[0013] The surface cover includes a cover body and a cover plate detachably fixed to the central area of ​​the cover body. The pressure-bearing steel cover is provided with a matching groove corresponding to the cover plate. The cover plate and the matching groove cooperate to form a first air duct. The supporting cantilever is provided with an air inlet connected to the first fan, and the cover plate is provided with an air outlet connected to the first air duct.

[0014] The outer cover assembly comprises a surface cover located above the pressure-bearing steel cover, the first fan is arranged on the surface cover, and the surface cover is provided with an air inlet and an air outlet.

[0015] The second air duct surrounds the inner pot, a sealing member is arranged between the pot cover and the inner pot, and a first air outlet connected to the second air duct is arranged between the edge of the outer pot and the edge of the inner pot.

[0016] The side wall of the outer pot is provided with a second air outlet connected to the second air duct, and the second air outlet is arranged opposite to the second fan along the radial direction of the pot body; or, the bottom wall of the outer pot is provided with a second air outlet connected to the second air duct.

[0017] An air guide is provided at the second fan, and the air guide has air guide ribs, which extend obliquely upward so that the airflow formed by the second fan flows toward the upper part of the inner pot in the second air duct.

[0018] The air-cooled cooking appliance comprises a first control unit and a second control unit. The first control unit is electrically connected to the first fan for controlling the first fan, and the second control unit is electrically connected to the second fan for controlling the second fan.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. In the utility model, a first fan is provided on the pot cover, a second fan is provided on the side wall of the pot body, and the first air duct on the pot cover and the second air duct on the pot body are isolated from each other, so that the airflow formed by the first fan is only used to cool the pressure-bearing steel cover, and can flow and circulate in the first air duct alone, but cannot flow into the second air duct of the pot body. The airflow formed by the second fan is only used to cool the inner pot, and flows and circulates in the second air duct alone, and cannot flow into the first air duct of the pot cover. In this way, during the pressure reduction process, the first fan and the second fan can cool the pressure-bearing steel cover and the inner pot independently, increase the contact area between the cold air and the inner pot and the pressure-bearing steel cover, and improve the heat exchange efficiency. Moreover, the airflows formed by the first fan and the second fan flow and circulate in their respective air ducts, and cannot be mixed, thereby avoiding heat exchange between the two airflows, and always making the airflow with a lower temperature contact with the pressure-bearing steel cover and the inner pot, ensuring the heat exchange efficiency, thereby shortening the overall pressure reduction time, helping to open the cover quickly, and improving the user experience.

[0021] 2. As a preferred embodiment of the utility model, the first fan is arranged above the pressure-bearing steel cover, and the air outlet of the first fan faces the top surface of the pressure-bearing steel cover. The air outlet of the first fan faces the top surface of the pressure-bearing steel cover, so that the wind flow blown out by the first fan can flow toward the pressure-bearing steel cover in a direction perpendicular to the top surface of the pressure-bearing steel cover and collide with the top surface of the pressure-bearing steel cover. After being blocked by the pressure-bearing steel cover, the wind flow diffuses and flows on the top surface of the pressure-bearing steel cover, thereby improving the contact effect between the wind flow and the pressure-bearing steel cover, and prolonging the contact time between the wind flow and the pressure-bearing steel cover, thereby improving the cooling effect on the pressure-bearing steel cover.

[0022] 3. As a preferred embodiment of the utility model, the outer cover assembly includes a face cover located above the pressure-bearing steel cover, and a support cantilever located above the face cover, the first air duct is located between the face cover and the pressure-bearing steel cover, the first fan is arranged on the support cantilever, and the face cover is provided with a docking port for connecting the first fan and the first air duct. The first fan is arranged in the support cantilever, and during the cooking process, the first fan will not directly contact the cooking environment in the pot body, so the oil smoke, water vapor and food residues in the pot will not reach the first fan in the support cantilever, which ensures the cleanliness of the first fan and reduces the cleaning pressure of the user. In addition, since the first fan is arranged outside the face cover, the structure of the face cover is simpler and the weight is lighter, which has significant advantages for the removable face cover structure, and the user can take the face cover more labor-saving. Moreover, the user can directly rinse the face cover, which makes the cleaning of the face cover simpler and more convenient, and the cleaning is more comprehensive and thorough, improving the user experience.

[0023] 4. As a preferred embodiment of the utility model, an air guide is provided at the second fan, and the air guide has air guide ribs, which extend upward obliquely, so that the airflow formed by the second fan flows toward the upper part of the inner pot in the second air duct. During the pressure cooking process, a large amount of high-temperature gas gathers in the cooking cavity of the pot body, which causes the air pressure in the pot to be higher than the external air pressure. Therefore, if you want to quickly reduce the pressure, you need to quickly reduce the temperature of the high-temperature gas in the pot. Most of the food is concentrated in the lower part of the inner pot, and the high-temperature gas is more concentrated in the middle and upper part of the inner pot. Therefore, in this embodiment, the airflow blown out by the second fan is guided upward by the air guide, so that it is preferentially contacted with the upper part of the inner pot for cooling, and the priority of cooling the upper part of the inner pot is increased. The original heat transfer route of water vapor in the inner pot-food in the inner pot-side wall of the inner pot-cold air is adjusted to water vapor in the inner pot-side wall of the inner pot-cold air, shortening the heat transfer path, improving the heat transfer efficiency, and helping to quickly reduce the temperature of the gas inside the inner pot, achieving rapid pressure relief, shortening the time for users to open the lid, and thus shortening the pressure cooking time.

[0024] 5. As a preferred embodiment of the present invention, the air-cooled cooking appliance has a first control unit and a second control unit, wherein the first control unit is electrically connected to the first fan for controlling the first fan, and the second control unit is electrically connected to the second fan for controlling the second fan. In this embodiment, the first fan and the second fan are respectively controlled and operated by independent control units, so that the setting of the start timing and the operation time of the first fan and the second fan is more flexible, and the first fan and the second fan can be started and operated together to cool the pressure-bearing steel cover and the inner pot at the same time to improve the cooling efficiency, or one of them can be started separately to cool the pressure-bearing steel cover or the inner pot in a targeted manner, or the first fan and the second fan can be started and operated or stopped in sequence, or the two can be operated alternately, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0026] Figure 1 It is a cross-sectional view of an air-cooled cooking appliance according to an embodiment of the utility model, wherein the arrow indicates the direction of air flow;

[0027] Figure 2 for Figure 1 Magnified view of area A in the middle;

[0028] Figure 3 This is a cross-sectional view of a pot cover according to an embodiment of the utility model, wherein the arrow indicates the direction of the wind flow in the first air duct;

[0029] Figure 4 for Figure 3 Structural explosion view of the middle pot cover;

[0030] Figure 5 This is a schematic structural diagram of a supporting cantilever portion of the present invention in one embodiment;

[0031] Figure 6 This is a schematic structural diagram of a cover plate in one embodiment of the utility model;

[0032] Figure 7 It is a cross-sectional view of an air-cooled cooking appliance according to an embodiment of the utility model, wherein the supporting cantilever is in a flipped open state.

[0033] in:

[0034] 1 pot body; 11 second air duct; 12 first air outlet; 13 outer pot; 14 inner pot;

[0035] 2 pot cover; 21 pressure-bearing steel cover; 211 matching groove; 22 surface cover; 221 cover body; 222 cover plate; 2221 air outlet; 223 docking interface; 23 supporting cantilever; 231 positioning protrusion; 232 air inlet; 24 first air duct;

[0036] 3 first fan;

[0037] 4 second fan;

[0038] 5. Air guide parts; 51. Air guide ribs. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0041] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] like Figure 1 As shown, an air-cooled cooking utensil comprises a pot body 1 and a pot cover 2 buckled on the pot body 1, the pot cover 2 comprises a pressure-bearing steel cover 21 and an outer cover assembly connected to the pressure-bearing steel cover 21, the pot body 1 comprises an inner pot 14 and an outer pot 13; a first fan 3 is arranged on the pot cover 2, a second fan 4 is arranged on the side wall of the pot body 1, a first air duct 24 is arranged between the pressure-bearing steel cover 21 and the outer cover assembly to guide the wind flow formed by the first fan 3; a second air duct 11 is arranged between the inner pot 14 and the outer pot 13 to guide the wind flow formed by the second fan 4, and the first air duct 24 and the second air duct 11 are isolated from each other.

[0045] It should be noted that the utility model does not limit the way in which the first fan 3 and the second fan 4 form airflow. In one embodiment, the first fan 3 and the second fan 4 are both blowing fans that blow airflow outward, that is, the first fan 3 is used to blow airflow into the first air duct 24 to contact with the pressure-bearing steel cover 21 to cool it down, and the second fan 4 is used to blow airflow into the second air duct 11 to contact with the inner pot 14 to cool it down. In another embodiment, the first fan 3 and the second fan 4 are both suction fans. Taking the first fan 3 as an example, under the suction action of the first fan 3, the external airflow enters the first air duct 24 of the pot cover 2 from the air inlet on the pot cover 2, contacts with the pressure-bearing steel cover 21 to cool it, and then is discharged from the first fan 3.

[0046] Of course, one of the first fan 3 and the second fan 4 may be a suction fan and the other may be a blower fan, which is not limited here.

[0047] In the utility model, the pot cover 2 is provided with a first fan 3, the side wall of the pot body 1 is provided with a second fan 4, and the first air duct 24 on the pot cover 2 and the second air duct 11 on the pot body 1 are isolated from each other, so that the airflow formed by the first fan 3 is only used to cool the pressure-bearing steel cover 21, and can flow and circulate in the first air duct 24 alone, but cannot flow into the second air duct 11 of the pot body 1. The airflow formed by the second fan 4 is only used to cool the inner pot 14, and flows and circulates in the second air duct 11 alone, but cannot flow into the first air duct 24 of the pot cover 2. In this way, during the pressure reduction process, the first fan 3 and the second fan 4 can independently cool the pressure-bearing steel cover 21 and the inner pot 14, increase the contact area between the cold air and the inner pot 14 and the pressure-bearing steel cover 21, and improve the heat exchange efficiency. Moreover, the wind flow formed by the first fan 3 and the second fan 4 flows in their respective air ducts and completes a cycle without mixing, thereby avoiding heat exchange between the two wind flows and keeping the wind flow with a lower temperature in contact with the pressure-bearing steel cover 21 and the inner pot 14 at all times, thereby ensuring heat exchange efficiency and shortening the overall pressure reduction time, facilitating quick opening of the cover, and improving the user experience.

[0048] It should be noted that the utility model does not limit the setting position of the first fan 3, which can be one of the following embodiments:

[0049] Implementation method 1: In this implementation method, Figure 1 , Figure 3 , Figure 4 As shown, the first fan 3 is disposed above the pressure-bearing steel cover 21 , and the air outlet of the first fan 3 faces the top surface of the pressure-bearing steel cover 21 .

[0050] The air outlet of the first fan 3 is toward the top surface of the pressure-bearing steel cover 21, so that the wind flow blown out by the first fan 3 can flow toward the pressure-bearing steel cover 21 in a direction perpendicular to the top surface of the pressure-bearing steel cover 21 and collide with the top surface of the pressure-bearing steel cover 21. After being blocked by the pressure-bearing steel cover 21, the wind flow diffuses and flows on the top surface of the pressure-bearing steel cover 21, thereby improving the contact effect between the wind flow and the pressure-bearing steel cover 21, and extending the contact time between the wind flow and the pressure-bearing steel cover 21, thereby improving the cooling effect on the pressure-bearing steel cover 21.

[0051] Embodiment 2: In this embodiment, the first fan 3 is disposed on one lateral side of the pressure-bearing steel cover 21 , and the air outlet of the first fan 3 faces the center of the pressure-bearing steel cover 21 .

[0052] In this embodiment, the first fan 3 blows air horizontally, so that the airflow blown out flows through the top surface of the pressure-bearing steel cover 21, thereby taking away the heat of the pressure-bearing steel cover 21 and achieving cooling. In addition, the airflow will not collide violently with the top surface of the pressure-bearing steel cover 21, which can reduce wind resistance and reduce the noise generated by the airflow.

[0053] Preferably, if Figure 1 As shown, the air outlet of the first air duct 24 faces the top of the pot cover 2, and the air outlet of the second air duct 11 faces the side of the pot body 1, so that the air outlet of the first air duct 24 and the air outlet of the second air duct 11 are isolated from each other.

[0054] After the airflow in the first air duct 24 cools down the pressure-bearing steel cover 21, it flows out upward from the first air duct 24. After the airflow in the second air duct 11 cools down the inner pot 14, it flows out horizontally from the pot body 1. The discharge positions of the two airflows are far apart and are not easy to mix, ensuring that the airflow circulation inside the pot cover 2 and the pot body 1 is carried out in an orderly manner.

[0055] In a preferred embodiment, Figure 1 As shown, the air outlet of the first air duct 24 is located at the top of the pot cover 2 and faces upward so that the wind flow is discharged vertically upward. In another embodiment, the air outlet of the first air duct 24 can also be located at the side of the pot cover 2 and tilted upward so that the wind flow is discharged in an inclined upward direction. Of course, in other embodiments, the air outlet of the first air duct 24 can also be set on the side wall of the pot cover 2 and face the lateral side of the pot cover 2 to achieve lateral air discharge.

[0056] The utility model does not limit the structure of the pot cover 2. In a preferred embodiment, Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, the outer cover assembly includes a surface cover 22 located above the pressure-bearing steel cover 21, and a supporting cantilever 23 located above the surface cover 22, the first air duct 24 is located between the surface cover 22 and the pressure-bearing steel cover 21, the first fan 3 is arranged on the supporting cantilever 23, and the surface cover 22 is provided with a docking port 223 for connecting the first fan 3 and the first air duct 24.

[0057] The first fan 3 is arranged in the supporting cantilever 23. During the cooking process, the first fan 3 will not directly contact the cooking environment in the pot body 1. Therefore, the oil smoke, water vapor and food residues in the pot will not reach the first fan 3 in the supporting cantilever 23, which ensures the cleanliness of the first fan 3 and reduces the cleaning pressure of the user. In addition, since the first fan 3 is arranged outside the cover 22, the structure of the cover 22 is simpler and lighter, which has significant advantages for the removable cover 22 structure, and the user can take the cover 22 with more effort. Moreover, the user can directly rinse the cover 22, which makes the cleaning of the cover 22 simpler and more convenient, and the cleaning is more comprehensive and thorough, improving the user experience.

[0058] In this embodiment, if Figure 1 , Figure 7 As shown, the support cantilever 23 can rotate relative to the surface cover 22 (flip up and down or rotate horizontally), and the surface cover 22 can be fixed to or removed from the support cantilever 23, so that the user can open the surface cover 22 together by rotating the support cantilever 23, or remove the surface cover 22 from the support cantilever 23 for cleaning separately.

[0059] Specifically, Figure 3 , Figure 7 As shown, the support arm 23 is provided with a positioning protrusion 231 protruding downward, and the first fan 3 is located inside the positioning protrusion 231. When the support arm 23 is rotated to the right position, the positioning protrusion 231 is plugged into the docking port 223 to achieve the communication between the first fan 3 and the first air duct 24. At the same time, the positioning protrusion 231 cooperates with the docking port 223 to position the installation of the support arm 23 and the cover 22.

[0060] Furthermore, the docking port 223 is located at the center of the cover 22, and the positioning protrusion 231 is correspondingly arranged to achieve center positioning and improve positioning accuracy.

[0061] Preferably, if Figure 3 , Figure 4 As shown, the surface cover 22 includes a cover body 221 and a cover plate 222 located in the central area of ​​the cover body 221 . The pressure-bearing steel cover 21 is provided with a matching groove 211 corresponding to the cover plate 222 . The cover plate 222 cooperates with the matching groove 211 to form a first air duct 24 .

[0062] After the cover plate 222 is installed, it directly cooperates with the matching groove 211 to form the first air duct 24, so that the wind can directly contact the matching groove 211, that is, the pressure-bearing steel cover 21, exchange heat with the pressure-bearing steel cover 21, and cool the pressure-bearing steel cover 21. Figure 3As shown, the cover body 221 and the pressure-bearing steel cover 21 are sealed at the periphery of the matching groove 211, and the first air duct 24 is formed only at the matching groove 211, so that the first air duct 24 is isolated from the internal space of the pot cover 2. When cooling the matching groove 211, since the pressure-bearing steel cover 21 is made of metal, it can cool other areas of the pressure-bearing steel cover 21 through its own heat transfer performance, but the cooling airflow can only flow in the space surrounded by the cover plate 222 and the matching groove 211, so the airflow will not blow oil stains and food residues into other gaps inside the pot cover 2, making it impossible to clean. At the same time, the water vapor, smoke, etc. inside the pot cover 2 will not enter the first air duct 24 with the airflow, ensuring the cleanliness of the first air duct 24 and reducing the cleaning pressure of the user.

[0063] Furthermore, if Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the supporting arm 23 is provided with an air inlet 232 connected to the first fan 3 , the cover plate 222 is provided with an air outlet 2221 connected to the first air duct 24 , and the cover plate 222 is detachably fixed to the cover body 221 .

[0064] When the cover plate 222 is installed on the cover body 221, it forms a first air duct 24 with the pressure-bearing steel cover 21. When the cover plate 222 is removed from the cover body 221, the first air duct 24 is exposed on the surface of the cover 22, so that the user can wipe and clean the inside of the first air duct 24, and the user can directly rinse the cover 22, making the cleaning of the cover 22 simpler and more convenient, and the cleaning is more comprehensive and thorough, improving the user experience. From the outside, the first air duct 24 is formed by the cover plate 22 and the pressure-bearing steel cover 21, which greatly simplifies the internal structure of the pot cover 2, making the weight of the pot cover 2 lighter, and the user can take the pot cover 2 more labor-saving.

[0065] In addition, the air inlet 232 and the first fan 3 are arranged on the support arm 23, and the air outlet 2221 is arranged on the cover body 222. During the cooking process, the support arm 23 will not directly contact the cooking environment in the pot body 1, so the oil smoke, water vapor and food residue in the pot will not reach the first fan 3 in the support arm 23 and the air inlet 232, thereby ensuring the cleanliness of each component and reducing the cleaning pressure of the user. The cover plate 222 is detachable, which also makes it easier for the user to clean the air outlet 2221.

[0066] Preferably, a sealing ring is provided between the cover plate 222 and the cover body 221 , and the cover plate 222 is inserted into the opening reserved in the cover body 221 through interference fit to achieve fixation and sealing.

[0067] Specifically, Figure 3 , Figure 4 , Figure 5As shown, the air inlet 232 is opened on the side wall of the supporting cantilever 23 , and the air outlets 2221 are arranged at intervals along the circumference of the cover plate 222 to surround the first fan 3 .

[0068] In another embodiment, the outer cover assembly includes a surface cover 22 located above the pressure-bearing steel cover 21, the first fan 3 is disposed on the surface cover 22, and the surface cover 22 is provided with an air inlet and an air outlet.

[0069] In this embodiment, the first fan 3 and the first air duct 24 are integrated into the inside of the cover 22, which simplifies the appearance of the cooking appliance and makes the appearance of the cooking appliance more concise. Compared with the method of setting the supporting cantilever 23, it can reduce the overall volume of the cooking appliance, which helps to miniaturize it.

[0070] As a preferred embodiment of the present invention, Figure 1 As shown, the second air duct 11 surrounds the inner pot 14 , a seal is provided between the pot cover 2 and the inner pot 14 , and a first air outlet 12 connected to the second air duct 11 is provided between the edge of the outer pot 13 and the edge of the inner pot 14 .

[0071] When the pot cover 2 covers the pot body 1, the sealing member on the pot cover 2 abuts against the edge of the inner pot 14 to seal the cooking cavity, and a first air outlet 12 is formed between the edges of the inner pot 14 and the outer pot 13 for the airflow in the second air duct 11 to be discharged.

[0072] Specifically, the second fan 4 blows the wind into the second air duct 11. The wind surrounds the inner pot 14 in the second air duct 11 and rises along the outer wall of the inner pot 14, thereby fully contacting the inner pot 14 for heat exchange and cooling the inner pot 14. When the wind rises to the edge of the outer pot 13, it is discharged through the first exhaust port 12.

[0073] In one embodiment, a side wall of the outer pot 13 is provided with a second air outlet connected to the second air duct 11 , and the second air outlet and the second fan 4 are arranged opposite to each other along the radial direction of the pot body 1 .

[0074] The pot body 1 may be provided with either the first air outlet 12 or the second air outlet, or may be provided with both the first air outlet 12 and the second air outlet.

[0075] In the present embodiment, part of the airflow in the second air duct 11 is discharged through the first exhaust port 12 at the top, and part of it is discharged through the second exhaust port on the opposite side, thereby greatly improving the exhaust efficiency of the airflow in the second air duct 11, and then improving the airflow circulation efficiency, so that the external cold air continuously enters the second air duct 11 under the action of the second fan 4, thereby improving the cooling efficiency.

[0076] In another embodiment, the bottom wall of the outer pot 13 is provided with a second air outlet connected to the second air duct 11. The airflow entering the second air duct 11 is naturally split, with one part flowing upward along the side wall of the inner pot 14 and discharged from the first air outlet 12 above, and the other part flowing downward along the side wall of the inner pot 14 and discharged from the second air outlet below. The two air flows cool the upper and lower parts of the inner pot 14 respectively, thereby improving the uniformity of the cooling of the inner pot 14.

[0077] Preferably, if Figure 2 As shown, an air guide member 5 is provided at the second fan 4 , and the air guide member 5 has air guide ribs 51 , and the air guide ribs 51 extend obliquely upward so that the airflow formed by the second fan 4 flows in the second air duct 11 toward the upper part of the inner pot 14 .

[0078] During the pressure cooking process, a large amount of high-temperature gas gathers in the cooking cavity of the pot body 1, which causes the air pressure in the pot to be higher than the external air pressure. If you want to reduce the pressure quickly, you need to quickly lower the temperature of the high-temperature gas in the pot. Most of the food is concentrated in the lower part of the inner pot 14, and the high-temperature gas is more concentrated in the middle and upper part of the inner pot 14.

[0079] In this embodiment, the air flow blown out by the second fan 4 is guided upward by the air guide 5, so that it contacts with the upper part of the inner pot 14 for cooling first, thereby increasing the priority of cooling the upper part of the inner pot 14, and adjusting the original heat transfer route of water vapor in the inner pot 14 - food in the inner pot - side wall of the inner pot 14 - cold air to water vapor in the inner pot 14 - side wall of the inner pot 14 - cold air, thereby shortening the heat transfer path, improving the heat transfer efficiency, and helping to quickly reduce the temperature of the gas in the inner pot 14, achieving rapid pressure relief, shortening the time it takes for users to open the lid, and thereby shortening the pressure cooking time.

[0080] In a preferred embodiment, the air-cooled cooking appliance has a first control unit and a second control unit, wherein the first control unit is electrically connected to the first fan 3 for controlling the first fan 3 , and the second control unit is electrically connected to the second fan 4 for controlling the second fan 4 .

[0081] In the present embodiment, the first fan 3 and the second fan 4 are respectively controlled and operated by independent control units, so that the setting of the start timing and the running time of the first fan 3 and the second fan 4 is more flexible. The first fan 3 and the second fan 4 can be started and operated together to cool the pressure-bearing steel cover 21 and the inner pot 14 at the same time to improve the cooling efficiency, or one of them can be started separately to cool the pressure-bearing steel cover 21 or the inner pot 14 in a targeted manner, or the first fan 3 and the second fan 4 can be started and stopped in sequence, or each can be operated for a specific length of time, or the two can be operated alternately, etc.

[0082] In addition, the first fan 3 and the second fan 4 can be controlled separately to meet the different cooking function requirements of the pressure cooker; for example, when opening the lid for rapid pressure relief, the first fan 3 and the second fan 4 can both be operated to achieve rapid pressure relief and opening the lid; and when boiling requirements for cooking under pressure or boiling requirements for cooking under no pressure are met, it can be selected to operate only one of the fans or control the speed of the two fans to achieve an ideal boiling effect and prevent the temperature and pressure from dropping too quickly, resulting in an unclear boiling effect.

[0083] In addition, the first control unit and the second control unit can also independently control the rotation speeds of the first fan 3 and the second fan 4 so that the rotation speeds of the two fans are different. For example, the volume of the inner pot 14 is large, and more cold air is often required to ensure a better cooling effect. Therefore, the rotation speed of the second fan 4 can be greater than that of the first fan 3, so that more cold air is supplied to the second air duct 11.

[0084] Of course, the first fan 3 and the second fan 4 may also be controlled in linkage by a control unit so as to start or stop them synchronously, so as to make the control procedure simpler.

[0085] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0086] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0087] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An air-cooled cooking utensil, comprising a pot body and a pot cover buckled on the pot body, the pot cover comprising a pressure-bearing steel cover and an outer cover assembly connected to the pressure-bearing steel cover, the pot body comprising an inner pot and an outer pot; characterized in that: A first fan is arranged on the pot cover, a second fan is arranged on the side wall of the pot body, a first air duct is arranged between the pressure-bearing steel cover and the outer cover assembly to guide the wind flow formed by the first fan; a second air duct is arranged between the inner pot and the outer pot to guide the wind flow formed by the second fan, and the first air duct and the second air duct are isolated from each other.

2. The air-cooled cooking appliance according to claim 1, characterized in that: The first fan is disposed above the pressure-bearing steel cover, and the air outlet of the first fan faces the top surface of the pressure-bearing steel cover; or, The first fan is arranged on one lateral side of the pressure-bearing steel cover, and the air outlet of the first fan faces the center of the pressure-bearing steel cover.

3. The air-cooled cooking appliance according to claim 1, characterized in that: The air outlet of the first air duct faces upward of the pot cover, and the air outlet of the second air duct faces the side of the pot body, so that the air outlet of the first air duct and the air outlet of the second air duct are isolated from each other.

4. The air-cooled cooking appliance according to claim 1, characterized in that: The outer cover assembly includes a surface cover located above the pressure-bearing steel cover, and a supporting cantilever located above the surface cover, the first air duct is located between the surface cover and the pressure-bearing steel cover, the first fan is arranged on the supporting cantilever, and the surface cover is provided with a docking port for connecting the first fan and the first air duct.

5. The air-cooled cooking appliance according to claim 4, characterized in that: The surface cover includes a cover body and a cover plate detachably fixed to the central area of ​​the cover body, the pressure-bearing steel cover is provided with a matching groove corresponding to the cover plate, the cover plate and the matching groove cooperate to form the first air duct, the supporting cantilever is provided with an air inlet connected to the first fan, and the cover plate is provided with an air outlet connected to the first air duct.

6. The air-cooled cooking appliance according to claim 1, characterized in that: The outer cover assembly comprises a surface cover located above the pressure-bearing steel cover, the first fan is arranged on the surface cover, and the surface cover is provided with an air inlet and an air outlet.

7. The air-cooled cooking appliance according to claim 1, characterized in that: The second air duct surrounds the inner pot, a sealing member is provided between the pot cover and the inner pot, and a first air outlet communicating with the second air duct is provided between the edge of the outer pot and the edge of the inner pot.

8. The air-cooled cooking appliance according to claim 1 or 7, characterized in that: The side wall of the outer pot is provided with a second air outlet connected to the second air duct, and the second air outlet and the second fan are arranged opposite to each other along the radial direction of the pot body; or, The bottom wall of the outer pot is provided with a second air outlet connected to the second air duct.

9. The air-cooled cooking appliance according to claim 1, characterized in that: An air guide is provided at the second fan, and the air guide has air guide ribs, which extend obliquely upward so that the airflow formed by the second fan flows toward the upper part of the inner pot in the second air duct.

10. The air-cooled cooking appliance according to claim 1, characterized in that: The air-cooled cooking appliance comprises a first control unit and a second control unit. The first control unit is electrically connected to the first fan for controlling the first fan, and the second control unit is electrically connected to the second fan for controlling the second fan.

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