Air-cooled cooking utensil

Abstract

The air-cooled cooking utensil comprises a pot body and an inner container, the pot body comprises an outer cover provided with a ventilation window, a heat preservation cover provided with an air inlet, a fan used for cooling the inner container and a fan support, the fan support is fixed to the heat preservation cover corresponding to the air inlet, and the ventilation window and the fan support are in butt joint to form an air inlet channel; the fan is located in the air inlet channel, the butt joint position of the ventilation window and the fan support is located in the interlayer space of the outer cover and the heat preservation cover, and a sealing piece is arranged between the ventilation window and the fan support to seal the butt joint gap between the ventilation window and the fan support. The sealing piece is arranged between the ventilation window and the fan support, the butt joint gap between the ventilation window and the fan support can be sealed, the problem that cold air generated in the using process leaks into the interlayer space from the gap or the fan sucks hot air in the interlayer space from the gap is solved, the air cooling efficiency is further improved, and the air cooling effect on the inner container is improved.

Description

Technical Field

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

[0002] Existing cooking appliances, such as rice cookers and pressure cookers, generally include a pot body and an inner pot arranged in the pot body. In order to achieve rapid cooling of the inner pot, a fan assembly is generally arranged on the pot body to blow cold air from the outside of the cooking appliance to the inner pot through the fan assembly, so that when the high-temperature steam inside the inner pot contacts the inner pot, it will quickly condense and liquefy into condensed water, so as to form a layer of water film between the food and the inner wall of the inner pot, thereby preventing the food from sticking to the inner wall of the inner pot and achieving a non-stick effect.

[0003] Specifically, the pot body of the existing air-cooled cooking device includes an outer cover and a heat-insulating cover, the outer cover is provided with a ventilation window, the heat-insulating cover is provided with an air inlet, and the fan assembly includes a fan and a fan bracket fixed on the heat-insulating cover corresponding to the air inlet. In actual applications, it is found that the mounting holes on the heat-insulating cover for mounting the fan bracket have a processing tolerance of ±1.0mm and an installation tolerance of ±0.5mm, and the mounting holes on the outer cover for mounting the ventilation window have a processing tolerance of ±1.0mm and an installation tolerance of ±0.5mm. The tolerances are accumulated, so that after the final installation is completed, there may be a large gap in the air inlet duct formed by the connection between the ventilation window and the fan bracket. The existence of the gap causes problems such as the leakage of cold air blown out from the fan outlet end through the gap and the absorption end of the fan sucking the hot air escaping from the pot body through the gap during use, thereby reducing the cooling efficiency of the fan for the inner pot, so that the air cooling efficiency can be further improved. Utility Model Content

[0004] The present application provides an air-cooled cooking utensil to solve the technical problem that there is a docking gap between the air vent window and the fan bracket of the existing cooking utensil, which results in that the air cooling efficiency can be further improved.

[0005] The technical solution adopted in this application is:

[0006] A wind-cooled cooking utensil comprises a pot body and an inner pot, wherein the pot body comprises an outer cover provided with a ventilation window, a heat-insulating cover provided with an air inlet, and a fan and a fan bracket for cooling the inner pot, wherein the fan bracket is fixed to the heat-insulating cover corresponding to the air inlet, the ventilation window is butted against the fan bracket to form an air inlet duct, the fan is located in the air inlet duct, the butt joint between the ventilation window and the fan bracket is located in the interlayer space between the outer cover and the heat-insulating cover, and a sealing member is provided between the ventilation window and the fan bracket to seal the butt joint gap between the two.

[0007] The air-cooled cooking appliance in the present application also includes the following additional technical features:

[0008] The fan is arranged on the ventilation window, the air outlet end of the fan is adjacent to the butt joint, and the sealing member is in sealing cooperation with the butt joint to prevent air leakage from the air outlet end of the fan.

[0009] The fan is arranged on the fan bracket, the air suction end of the fan is adjacent to the butt joint, and the sealing member is in sealing cooperation with the butt joint, so that the air suction end of the fan absorbs cold air from the outside.

[0010] The sealing component includes a front frame wrapping the air outlet end of the fan, and a rear frame wrapping the air inlet end of the fan bracket, the front frame has a butt end face, the air vent window has a mating end face opposite to the butt end face, and the butt end face and the mating end face abut against each other for sealing; or, the sealing component includes a front frame wrapping the air outlet end of the air vent window, and a rear frame wrapping the air intake end of the fan, the rear frame has a butt end face, the fan bracket has a mating end face opposite to the butt end face, and the butt end face and the mating end face abut against each other for sealing.

[0011] The abutting end surface and the matching end surface are both inclined surfaces.

[0012] The front frame includes a front wrapping portion for wrapping the air outlet end of the fan, and an outer flange fixedly connected to the front wrapping portion and folded outward, the abutting end surface is at least partially arranged on the outer flange, and the outer flange is arranged obliquely relative to the front wrapping portion so that the abutting end surface is an inclined surface.

[0013] The ventilation window includes a window body provided with ventilation holes and a circumferential rib arranged around the window body and extending toward the interlayer space, and the mating end face is located at an end of the circumferential rib away from the window body; the circumferential rib has a first side and a second side opposite to the first side, and the extension length of the first side toward the fan is smaller than the extension length of the second side toward the fan, so that the mating end face is a slope.

[0014] The sealing member is sandwiched between the air vent and the fan bracket to form a seal in the circumferential direction of the air inlet duct.

[0015] The fan bracket includes an air outlet and a support frame connected to the air outlet, the air outlet is provided with a flow hole, the support frame has a support end surface for supporting and positioning the fan, the support end surface is an inclined surface so that the fan is arranged obliquely relative to the air outlet, so as to form a guide cavity between the air outlet and the air outlet end of the fan, the guide cavity extends along the circumferential direction of the heat preservation cover, and is a structure with one end large and the other end small.

[0016] The fan bracket also includes a positioning portion fixedly connected to the support frame and located at the periphery of the support frame. The sealing member wraps the support frame and seals with the support frame. The sealing member is provided with an avoidance notch for avoiding the positioning portion.

[0017] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0018] 1. By providing a seal between the air vent and the fan bracket, the joint gap between the two in the interlayer space can be sealed, thereby preventing problems such as cold air leaking from the gap into the interlayer space and the fan absorbing hot air in the interlayer space from the gap during use, thereby further improving the air cooling efficiency and the air cooling effect on the inner pot. When the inner pot is an uncoated inner pot and is used to cook rice, sufficient cooling of the inner pot can quickly reduce the temperature of the inner pot, so that the water vapor in the inner pot is liquefied and adheres to the inner wall of the inner pot to form a water film. The water film can reduce the adhesion between the rice and the inner wall of the inner pot, thereby greatly reducing the probability of rice adhering to the inner wall of the inner pot, making it easier for users to clean the inner pot and improving the user experience.

[0019] 2. As a preferred embodiment of the present application, the fan is arranged on the ventilation window, the air outlet of the fan is adjacent to the docking point, and the seal cooperates with the docking point to prevent air leakage from the air outlet of the fan. Such an arrangement can avoid premature escape of cold air, greatly reduce the waste of air volume, and make as much wind as possible eventually flow into the air inlet of the insulation cover through the air inlet duct, ensuring the wind pressure at the air inlet, thereby increasing the flow rate of cold air and improving air cooling efficiency.

[0020] 3. As a preferred embodiment of the present application, the fan is arranged on the fan bracket, the air suction end of the fan is adjacent to the docking point, and the sealing member is in sealing cooperation with the docking point, so that the air suction end of the fan absorbs cold air from the outside. Due to the heat dissipation during the cooking process and the inflow of hot air generated during the air cooling process through the installation gap or the air outlet of the insulation cover, the air temperature in the interlayer space between the outer cover and the insulation cover is generally higher than the outside temperature. When the fan is arranged on the fan bracket, the air suction end of the fan absorbs the hot air in the interlayer space from the docking point while absorbing the cold air from the outside, so that the air sucked by the air suction end of the fan will eventually have a certain temperature. By sealing the docking gap after installation with the sealing member, the air sucked by the air suction end of the fan can be only the cold air from the outside of the pot body. On the one hand, the air cooling efficiency can be improved, and the air cooling effect on the inner pot can be improved, thereby ensuring the cooking effect. On the other hand, the orderly flow of the incoming air can be ensured, and the cold air sucked from the outside of the pot body and the hot air sucked from the docking gap can be avoided. The noise caused by the collision at the air suction end of the fan and the turbulence caused by the collision can be avoided, thereby improving the user experience.

[0021] 4. As a preferred embodiment of the present application, the sealing member includes a front frame wrapping the air outlet end of the fan, and a rear frame wrapping the air inlet end of the fan bracket, the front frame has an abutting end face, the air vent has a matching end face opposite to the abutting end face, and the abutting end face and the matching end face abut and seal; or, the sealing member includes a front frame wrapping the air outlet end of the air vent, and a rear frame wrapping the air inlet end of the fan, the rear frame has an abutting end face, the fan bracket has a matching end face opposite to the abutting end face, and the abutting end face and the matching end face abut and seal. The abutting and sealing of the abutting end face and the matching end face can ensure that the fan is not connected to the interlayer space of the outer cover and the heat preservation cover, and the wrapping design of the front frame or the rear frame can, on the one hand, reduce the overflow of wind during the operation of the fan, so that as much wind as possible can pass through the sealing member and the fan bracket and flow into the air inlet of the heat preservation cover, thereby improving the air cooling efficiency, and on the other hand, it can also prevent the fan from shaking during operation, thereby improving the reliability and stability of the fan operation, and also providing a guarantee for stable air intake.

[0022] 5. As a preferred embodiment of the present application, the abutting end face and the matching end face are both inclined surfaces. The inclined surfaces cooperate with each other. On the one hand, the contact area between the abutting end face and the matching end face can be increased, and the sealing performance between the front frame and the air vent window can be improved, thereby avoiding the problem of cold air leaking from the gap and the fan sucking hot air in the pot body due to the existence of the gap. It can also avoid the turbulence caused by the collision of hot air and cold air. On the other hand, it can provide guidance for the assembly process between the outer cover and the thermal insulation cover, facilitate the smooth installation between the two, and thus help improve the assembly efficiency between the two.

[0023] 6. As a preferred embodiment of the present application, the fan bracket includes an air outlet and a support frame connected to the air outlet, the air outlet is provided with a flow hole, the support frame has a support end surface for supporting and positioning the fan, the support end surface is an inclined surface so that the fan is arranged inclined relative to the air outlet, so as to form a guide cavity between the air outlet and the air outlet end of the fan, the guide cavity extends along the circumferential direction of the thermal insulation cover, and has a structure with one end large and the other end small. On the one hand, the inclined fan changes the outlet angle of the cold air, reducing the probability of direct collision between the cold air and the inner liner, so that part of the cold air can enter the gap between the inner liner and the thermal insulation cover obliquely along the circumferential direction from the larger end of the guide cavity, avoiding the energy consumption caused by the direct collision with the inner liner. On the other hand, this makes the cross-sectional area of ​​one end of the guide cavity smaller than that of the other end, thereby forming a first chamber with a relatively small volume and a second chamber with a relatively large volume in the guide cavity, so that the pressure in the second chamber is lower than the pressure in the first chamber during the air intake process. Therefore, the wind blown into the first chamber can flow more toward the second chamber under the action of pressure, thereby better forming the circumferential wind guide and retaining a relatively high wind speed, so that the cold air can flow around the inner liner better and can make more sufficient contact with the inner liner, and the cooling efficiency can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 This is an exploded view of a partial structure of a cooking utensil in one embodiment of the present application;

[0026] Figure 2 An exploded view of a partial structure of a cooking utensil in one embodiment of the present application;

[0027] Figure 3 A cross-sectional view of a cooking utensil structure according to an embodiment of the present invention Figure 1 ;

[0028] Figure 4 A cross-sectional view of a cooking utensil structure according to an embodiment of the present invention Figure 2 ;

[0029] Figure 5 This is a schematic diagram of the assembly process of a partial structure of a cooking utensil in one embodiment of the present application;

[0030] Figure 6 A three-dimensional seal of an embodiment of the present application Figure 1 ;

[0031] Figure 7 A three-dimensional seal of an embodiment of the present application Figure 2 ;

[0032] Figure 8 This is a cross-sectional view of a seal according to one embodiment of the present application;

[0033] Fig. 9 A three-dimensional diagram of a fan bracket according to an embodiment of the present application;

[0034] Fig.10 A top view of a fan bracket according to an embodiment of the present application;

[0035] Fig.11 A cross-sectional view of a ventilation window in one embodiment of the present application;

[0036] Fig.12 This is a cross-sectional view of a ventilation window according to another embodiment of the present application.

[0037] in,

[0038] 1. Fan; 11. Positioning hole; 12. First buckle position;

[0039] 2. fan bracket; 21. main body; 211. flow hole; 22. air guide; 23. support frame; 24. support end surface; 25. second latch; 26. positioning part; 27. first mounting hole;

[0040] 3. Sealing member; 31. Front frame; 311. Front wrapping portion; 312. Outer flange; 313. Abutting end surface; 32. Rear frame; 321. Avoidance notch; 33. Positioning column; 34. First latch; 35. Second buckle position;

[0041] 4. Diversion cavity;

[0042] 5. outer cover; 51. ventilation window; 511. window body; 512. peripheral rib; 513. matching end face;

[0043] 6. Insulation cover; 61. Air inlet; 62. Second mounting hole;

[0044] 7. Inner liner;

[0045] 8. Central;

[0046] 9. Air inlet duct. DETAILED DESCRIPTION

[0047] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0049] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 should not be understood as a limitation on the present application.

[0050] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" 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 this application can be understood according to specific circumstances.

[0051] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a 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 "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present application. 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.

[0052] refer to Figures 1 to 5 A wind-cooled cooking utensil comprises a pot body and an inner pot 7. The pot body comprises an outer cover 5 provided with a ventilation window 51, a heat-insulating cover 6 provided with an air inlet 61, and a fan 1 and a fan bracket 2 for cooling the inner pot 7. The fan bracket 2 is fixed on the heat-insulating cover 6 corresponding to the air inlet 61. The ventilation window 51 is connected to the fan bracket 2 to form an air inlet duct 9. The fan 1 is located in the air inlet duct 9. The connection between the ventilation window 51 and the fan bracket 2 is located in the interlayer space between the outer cover 5 and the heat-insulating cover 6. A sealing member 3 is provided between the ventilation window 51 and the fan bracket 2 to seal the connection gap between the two.

[0053] The present application does not limit the type of the inner liner 7. Preferably, the inner liner 7 is an uncoated inner liner, for example, the inner surface of the inner liner is food-grade stainless steel. Of course, the inner liner 7 can also be a coated inner liner, which is not limited here.

[0054] By providing a seal 3 between the air vent 51 and the fan bracket 2, the joint gap between the two can be sealed to avoid problems such as cold air leaking from the gap into the interlayer space or the fan 1 absorbing hot air in the interlayer space from the gap during use, thereby further improving the air cooling efficiency and the air cooling effect on the inner pot 7. When the inner pot is an uncoated inner pot and is used to cook rice, the sufficient cooling of the inner pot can quickly reduce the temperature of the inner pot, so that the water vapor in the inner pot is liquefied and adheres to the inner wall of the inner pot to form a water film. The water film can reduce the adhesion between the rice and the inner wall of the inner pot, thereby greatly reducing the probability of rice adhering to the inner wall of the inner pot, making it easier for users to clean the inner pot and improving the user experience.

[0055] Preferably, the seal 3 is made of a flexible material, such as silicone, rubber, etc., and is in the form of a continuous full circle, so as to form a full circle seal in the circumferential direction.

[0056] The present application does not specifically limit the position of the fan 1, and it can adopt any one of the following embodiments:

[0057] Embodiment 1: The fan 1 is disposed on the air vent 51 , the air outlet end of the fan 1 is adjacent to the butt joint, and the seal 3 is in sealing cooperation with the butt joint to prevent air leakage from the air outlet end of the fan 1 .

[0058] Such a setting can prevent the cold air from escaping prematurely, greatly reduce the waste of air volume, and make as much wind as possible eventually flow into the air inlet 61 of the insulation cover through the air inlet duct, ensuring the wind pressure at the air inlet 61, thereby increasing the flow rate of the cold air and improving the air cooling efficiency.

[0059] Implementation Method 2: Reference Figures 1 to 5 The fan 1 is arranged on the fan bracket 2, the air suction end of the fan 1 is adjacent to the docking point, and the seal 3 is sealed with the docking point so that the air suction end of the fan draws cold air from the outside.

[0060] Due to the heat dissipation during the cooking process and the inflow of hot air generated during the air cooling process through the installation gap or the air outlet of the insulation cover, the air temperature in the interlayer space between the outer cover 5 and the insulation cover 6 is generally higher than the outside temperature. When the fan 1 is set on the fan bracket 2, the suction end of the fan 1 will absorb the cold air from the outside and the hot air in the interlayer space from the docking point, so that the air sucked by the suction end of the fan 1 will eventually have a certain temperature. By sealing the docking gap after installation with the seal 3, the air sucked by the suction end of the fan 1 can be only the cold air from the outside of the pot body. On the one hand, it can improve the air cooling efficiency and the air cooling effect on the inner pot, thereby ensuring the cooking effect. On the other hand, it can ensure the orderly flow of the incoming air, avoid the collision of the cold air sucked in from the outside of the pot body and the hot air sucked in from the docking gap at the suction end of the fan, and cause the noise caused by turbulence, thereby improving the user experience.

[0061] As a preferred embodiment of the present application, refer to Figure 1 , Figures 6 to 8 , Fig.11 , Fig.12 The sealing member 3 includes a front frame 31 wrapping the air outlet end of the fan 1, and a rear frame 32 wrapping the air inlet end of the fan bracket 2. The front frame 31 has a contact end surface 313, and the air vent 51 has a matching end surface 513 opposite to the contact end surface 313. The contact end surface 313 and the matching end surface 513 are contacted and sealed with each other, so that the air intake end of the fan 1 absorbs cold air from the outside.

[0062] The abutment seal between the abutment end face 313 and the matching end face 513 can ensure that the fan 1 is not connected to the interlayer space between the outer cover 5 and the thermal insulation cover 6. The wrapping design of the front frame 31 or the rear frame 32 can, on the one hand, reduce the overflow of wind during the operation of the fan, so that as much wind as possible can pass through the seal 3 and the fan bracket 2 and flow into the air inlet 61 of the thermal insulation cover 6, thereby improving the air cooling efficiency. On the other hand, it can also prevent the fan from shaking during operation, thereby improving the reliability and stability of the fan operation and providing a guarantee for stable air intake.

[0063] The structure of the abutting end surface 313 and the matching end surface 513 in the present application may adopt any one of the following embodiments:

[0064] Embodiment 1: Both the abutting end surface 313 and the matching end surface 513 are vertical surfaces, that is, the extending direction of the abutting end surface 313 and the extending direction of the matching end surface 513 are parallel to the vertical direction.

[0065] Implementation method 2: Figure 1 and Figure 5 As shown, the abutting end face 313 and the matching end face 513 are both inclined surfaces. That is, there is an angle between the extension direction of the abutting end face 313 and the extension direction of the matching end face 513 and the vertical direction to achieve an oblique arrangement. The abutting end face 313 and the matching end face 513 are matched by the inclined surfaces. On the one hand, the contact area between the abutting end face 313 and the matching end face 513 can be increased, and the sealing performance between the fan bracket 2 and the air vent 51 can be improved, thereby avoiding the problem of cold air leaking from the gap due to the existence of the gap and the fan 1 sucking the hot air in the pot body. It can also avoid the turbulence caused by the collision of hot air and cold air. On the other hand, it can provide guidance for the assembly process between the outer cover 5 and the heat preservation cover 6, facilitate the smooth installation between the two, and thus help improve the assembly efficiency between the two.

[0066] In some embodiments of embodiment 2, the front frame 31 includes a front wrapping portion 311 for wrapping the air outlet end of the fan 1, and an outer flange 312 fixedly connected to the front wrapping portion 311 and folded outward, the abutting end face 313 is at least partially provided on the outer flange 312, and the outer flange 312 is arranged obliquely relative to the front wrapping portion 311 so that the abutting end face 313 is an inclined surface.

[0067] Optionally, the outer flange 312 is folded outward from one end of the front wrapping portion 311 away from the rear frame 32, and at least a portion of the abutting end surface 313 is arranged on the outer flange 312; the front wrapping portion 311 has a first side and a second side opposite to the first side, and the extension length of the first side toward the fan 1 is smaller than the extension length of the second side toward the fan 1, so that the abutting end surface 313 is a slope.

[0068] By setting the extension lengths of the first side of the front wrapping part 311 and the second side opposite to the first side toward the fan 1 to be inconsistent, the purpose of changing the inclination of the end face of the front wrapping part 311 away from the rear frame 32 is achieved, and the outer flange 312 and the end face portion of the front wrapping part 311 adjacent thereto have the same inclination angle, which simplifies the structural design of the seal 3, thereby simplifying the design of the mold for processing the seal 3, and also facilitates the mold extraction during the processing, thereby improving the molding quality of the seal 3. Moreover, the outer flange 312 and the end face portion of the front wrapping part 311 adjacent thereto have the same inclination angle, which can also easily avoid the interference between the front wrapping part 311 and the air permeable window 51 during the assembly process of the outer cover 5 and the heat preservation cover 6, which helps to improve the assembly efficiency between the outer cover 5 and the heat preservation cover 6.

[0069] In this embodiment, the first side and the second side are not specifically limited. In one example, the first side is the lower side, and the corresponding second side is the upper side, and vice versa. In another example, the first side is the left side, and the corresponding second side is the right side.

[0070] Optionally, the abutting end surface 313 is arranged on the outer flange 312, and the outer flange 312 is arranged obliquely relative to the front wrapping portion 311 so that the abutting end surface 313 is an inclined surface. That is, the outer flange 312 is not located at the end of the front wrapping portion 311, and the end surface of the front wrapping portion 311 away from the end of the rear frame is not coplanar with the abutting end surface 313 arranged on the outer flange 312. The outer flange 312 is arranged between the two ends of the front wrapping portion 311, and the outer flange 312 is arranged obliquely relative to the front wrapping portion 311, thereby realizing the oblique arrangement of the abutting end surface 313.

[0071] Preferably, the front wrapping portion 311 extends in the horizontal direction to facilitate installation and fixation of the fan 1 and improve the assembly efficiency between the fan 1 and the seal 3. Of course, the front wrapping portion 311 can also extend obliquely, which is not limited here.

[0072] In some embodiments of the second embodiment, the ventilation window 51 includes a window body 511 provided with ventilation holes and a circumferential rib 512 arranged around the window body 511 and extending toward the interlayer space, and the mating end face 513 is located at an end of the circumferential rib 512 away from the window body 511; the circumferential rib 512 has a first side and a second side opposite to the first side, and the extension length of the first side toward the fan 1 is smaller than the extension length of the second side toward the fan 1, so that the mating end face 513 is a slope.

[0073] In this embodiment, the first side and the second side are not specifically limited. In one example, the first side is the lower side, and the corresponding second side is the upper side, and vice versa. In another example, the first side is the left side, and the corresponding second side is the right side.

[0074] Preferably, reference Figure 5 , the extension length of the upper side of the circumferential rib 512 toward the fan 1 is less than the extension length of the lower side of the circumferential rib 512 toward the fan 1, so that the mating end face 513 is an inclined surface. On the one hand, the inclined surface matching between the mating end face 513 and the abutting end face 313 can be achieved, and on the other hand, the air vent 51 can be narrow at the top and wide at the bottom, and the sealing member 3 connected thereto can be wide at the top and narrow at the bottom. Such an arrangement can make it possible to assemble the middle ring 8 of the pot body and the heat preservation cover 6 of the pot body first to form a module, and then assemble the module with the outer cover 5. In the assembly process, the outer cover 5 can be inserted into the module from bottom to top, and the abutting end face 313 and the mating end face 513 can provide a certain guide for assembly, thereby greatly improving the assembly efficiency.

[0075] The present application does not limit the form of the circumferential rib 512. In one embodiment, Fig.11 As shown, the upper and lower sides of the circumferential rib 512 extend in the horizontal direction, and the extension length of the upper side toward the fan 1 is less than the extension length of the lower side of the circumferential rib 512 toward the fan 1, so that the mating end surface 513 is an inclined surface. In another embodiment, as Fig.12 As shown, the upper and lower sides of the circumferential rib 512 extend downwardly at an angle, so that the cross-section of the circumferential rib 512 is arranged obliquely, and the extension length of the upper side of the circumferential rib 512 toward the fan 1 is smaller than the extension length of the lower side of the circumferential rib 512 toward the fan 1, so that the mating end face 513 is an inclined surface.

[0076] As a preferred embodiment of the present application, the front frame 31 is a structure made of a flexible material, and the front frame 31 is sealed with the air outlet end of the fan 1 to prevent air leakage at the joint between the front frame 31 and the fan 1; and / or, the rear frame 32 is a structure made of a flexible material, and the rear frame 32 is sealed with the air inlet end of the fan bracket 2 to prevent air leakage at the joint between the rear frame 32 and the fan bracket 2.

[0077] Such an arrangement, on the one hand, can allow the wind sucked in from the suction end of the fan 1 to flow to the flow hole 211 and the air inlet 61 as much as possible, avoiding wind leakage from the joint position between the seal 3 and the fan 1, and the joint position between the seal 3 and the fan bracket 2, which would cause waste of air volume, thereby helping to ensure the air-cooling effect on the inner tank 7; on the other hand, the front frame 31 or the rear frame 32 itself is made of flexible material, which can provide certain protection performance for the fan 1 while also having a certain vibration absorption effect on the vibration during the operation of the fan, thereby reducing the fan operation noise and further improving the user experience; furthermore, the flexibility of the flexible material also provides adaptive adjustment performance for the installation of the fan, ensuring the installation position of the fan, and helping to improve assembly efficiency.

[0078] As a preferred implementation of the present application, Figure 1 , Figure 3 , Figure 7 , Figure 8 As shown, one of the seal 3 and the fan 1 is provided with a first latch tongue 34, and the other is provided with a first buckle position 12 adapted to the first latch tongue 34. The seal 3 and the fan 1 are fixed by the first latch tongue 34 and the first buckle position 12, thereby realizing screw-free assembly between the fan 1 and the seal 3, which helps to improve the assembly efficiency between the fan 1 and the seal 3.

[0079] In a specific example, the seal 3 has a positioning column 33 fixedly connected to the front frame 31 and extending toward the fan 1. The fan 1 is provided with a positioning hole 11 adapted to the positioning column 33 and a first buckle position 12 adjacent to the positioning hole 11. A first latch 34 is provided on the positioning column 33. The positioning column 33 extends along the positioning hole 11 so that the first latch 34 is latched into the first buckle position 12, thereby realizing the snap-fitting of the seal 3 and the fan 1.

[0080] Furthermore, the first latch tongue 34 is a non-return latch tongue having an introduction slope and a locking surface, so that the first latch tongue 34 has the characteristics of forward insertion and reverse locking, thereby improving the stability of the fan 1 after installation.

[0081] As a preferred implementation of the present application, Figure 1 , Figure 3 , Figure 6 , Figure 7 , Fig. 9 As shown, one of the seal 3 and the fan bracket 2 is provided with a second latch 25 , and the other is provided with a second buckle position 35 adapted to the second latch 25 , and the seal 3 and the fan bracket 2 are fixed by the second latch 25 and the second buckle position 35 .

[0082] Furthermore, the second latch tongue 25 is a check latch tongue having an introduction slope and a locking surface, so that the second latch tongue 25 has the characteristics of forward entry and reverse locking, thereby improving the reliability and stability of the connection between the seal 3 and the fan bracket 2, thereby ensuring the stable installation of the fan 1.

[0083] Of course, in some alternative embodiments of the present application, the seal 3 may also include a front frame wrapping the air outlet end of the air vent 51, and a rear frame wrapping the air suction end of the fan 1, the rear frame having an abutting end face, the fan bracket 2 having a matching end face opposite to the abutting end face, and the abutting end faces abut against the matching end faces for sealing. The specific structure is similar to the above embodiment and will not be repeated here.

[0084] As a preferred embodiment of the present application, the seal 3 is sandwiched between the air vent 51 and the fan bracket 2 to form a seal in the circumferential direction of the air inlet duct.

[0085] By wrapping one of the air vent window 51 and the fan bracket 2 with the other and sandwiching the seal 3 between the two, sufficient sealing in the circumferential direction can be achieved, and the sealing performance between the air vent window 51 and the fan bracket 2 can be improved, thereby avoiding the problem of cold air leaking from the gap due to the existence of the gap and the fan sucking hot air in the pot body.

[0086] As a preferred implementation of the present application, Figures 1 to 4 , Fig. 9 and Fig.10 As shown, the fan bracket 2 includes an air outlet and a support frame 23 connected to the air outlet, the air outlet is provided with a flow hole 211, the support frame 23 has a support end surface 24 for supporting and positioning the fan 1, the support end surface 24 is an inclined surface so that the fan 1 is arranged obliquely relative to the air outlet, so as to form a guide cavity 4 between the air outlet and the air outlet end of the fan 1, the guide cavity 4 extends along the circumferential direction of the heat preservation cover, and is a structure with one end large and the other end small.

[0087] On the one hand, the tilted fan 1 changes the outlet angle of the cold air, reducing the probability of direct collision between the cold air and the inner liner, so that part of the cold air can enter the gap between the inner liner and the heat preservation cover obliquely along the circumferential direction from the larger end of the guide cavity 4, avoiding the energy consumption caused by directly facing the inner liner 7 and colliding with the inner liner 7. On the other hand, the cross-sectional area of ​​one end of the guide cavity 4 is smaller than the cross-sectional area of ​​the other end, thereby forming a first chamber with a relatively small volume and a second chamber with a relatively large volume in the guide cavity 4, so that the pressure in the second chamber is lower than the pressure in the first chamber during the air intake process. Therefore, the wind blown to the first chamber can flow to the second chamber more and faster under the action of pressure, thereby better forming the circumferential wind guide and retaining a relatively high wind speed, so that the cold air can flow around the inner liner 7 better and can make more sufficient contact with the inner liner 7, and the cooling efficiency can be further improved.

[0088] As a preferred embodiment of the present embodiment, the air outlet portion includes a main body portion 21 corresponding to a partial area of ​​the air outlet end of the fan 1, and a guide portion 22 connected to the main body portion 21, the guide portion 22 corresponds to another partial area of ​​the air outlet end of the fan 1, and the flow hole 211 is provided in the main body portion 21.

[0089] In this embodiment, a part of the air outlet end of the fan 1 corresponds to the main body 21, and another part of the air outlet end of the fan 1 corresponds to the guide portion 22. The flow hole 211 on the main body 21 is opposite to and connected with the air inlet 61 of the heat preservation cover 6. Therefore, the area of ​​the air outlet end of the fan 1 corresponding to the guide portion 22 is arranged in a staggered manner with the air inlet 61, and the wind entering from this area flows to the flow hole 211 through the guide portion 22 and flows into the heat preservation cover 6 from the air inlet 61 to cool the inner liner 7.

[0090] In this way, the area of ​​the air outlet of the fan 1 is larger than the area of ​​the flow hole 211 of the air outlet portion. On the one hand, it can reduce the heat leakage during the cooking process and when the fan 1 is not running to ensure the thermal efficiency of cooking. On the other hand, it can increase the air intake when the fan 1 is running to achieve rapid cooling of the inner pot. Specifically, the wind at the fan outlet facing the flow hole 211 can flow directly to the air inlet through the flow hole, while the wind at the fan outlet facing the guide portion 22 can flow upward into the flow hole 211 under the pressure difference and the drainage effect of the guide portion corresponding to the second chamber. Therefore, the two winds flow into the flow hole together, and the cold air can have a certain pressure when it is discharged from the air inlet, thereby increasing the flow rate of the cold air.

[0091] Furthermore, the main body 21 , the air guide portion 22 and the support frame 23 are an integrally formed structure.

[0092] Of course, the present application does not specifically limit the form of the air outlet portion, and the air outlet portion may not be provided with a guide portion, that is, the air outlet portion is entirely provided with flow holes.

[0093] As a preferred embodiment of this implementation, Figure 4 and Fig.10 As shown, the extension length of the right end of the support frame 23 toward the fan 1 is less than the extension length of the left end of the support frame 23 toward the fan 1, so that the support end surface 24 is an inclined surface, and the fan 1 is installed obliquely. This embodiment can make full use of the redundant space between the rear of the existing outer cover 5 and the rear of the heat preservation cover 6, realize the oblique arrangement of the support end surface 24, realize the compact layout of the structure, and contribute to the miniaturization design of the whole machine.

[0094] As a preferred embodiment of this implementation, Figure 6 and Fig. 9As shown, the fan bracket 2 further includes a positioning portion 26 that is fixedly connected to the support frame 23 and is located at the periphery of the support frame 23. The seal 3 wraps the support frame 23 and is sealed with the support frame 23. The seal 3 is provided with an escape notch 321 for escaping the positioning portion 26. Such an arrangement can achieve an inclined arrangement of the fan 1, so that when the support frame 23 and the rear frame 32 are installed, the positioning portion 26 and a partial area of ​​the seal 3 interfere with each other, thereby affecting the assembly.

[0095] Furthermore, if Figure 1 and Fig. 9 As shown, the positioning portion 26 is provided with a first mounting hole 27 , the heat preservation cover 6 is provided with a second mounting hole 62 , and the fan bracket 2 is fixedly connected to the heat preservation cover 6 via fasteners penetrating the first mounting hole 27 and the second mounting hole 62 .

[0096] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0097] 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.

[0098] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An air-cooled cooking utensil, comprising a pot body and an inner pot, wherein the pot body comprises an outer cover provided with a ventilation window, a heat-insulating cover provided with an air inlet, and a fan and a fan bracket for cooling the inner pot, wherein the fan bracket is fixed on the heat-insulating cover corresponding to the air inlet, the ventilation window is connected to the fan bracket to form an air inlet duct, and the fan is located in the air inlet duct, characterized in that: The joint between the ventilation window and the fan bracket is located in the interlayer space between the outer cover and the heat-insulating cover, and a sealing member is provided between the ventilation window and the fan bracket to seal the joint gap between the two.

2. The air-cooled cooking appliance according to claim 1, characterized in that: The fan is arranged on the ventilation window, the air outlet end of the fan is adjacent to the butt joint, and the sealing member is in sealing cooperation with the butt joint to prevent air leakage from the air outlet end of the fan.

3. The air-cooled cooking appliance according to claim 1, characterized in that: The fan is arranged on the fan bracket, the air suction end of the fan is adjacent to the butt joint, and the sealing member is in sealing cooperation with the butt joint, so that the air suction end of the fan absorbs cold air from the outside.

4. The air-cooled cooking appliance according to claim 1, characterized in that: The sealing member comprises a front frame wrapping the air outlet end of the fan, and a rear frame wrapping the air inlet end of the fan bracket, the front frame has an abutting end face, the air vent has a matching end face opposite to the abutting end face, and the abutting end face abuts and seals with the matching end face; Alternatively, the seal includes a front frame wrapping the air outlet end of the air vent window, and a rear frame wrapping the air intake end of the fan, the rear frame has an abutting end face, and the fan bracket has a mating end face opposite to the abutting end face, and the abutting end face abuts and seals against the mating end face.

5. The air-cooled cooking appliance according to claim 4, characterized in that: The abutting end surface and the matching end surface are both inclined surfaces.

6. The air-cooled cooking appliance according to claim 5, characterized in that: The front frame includes a front wrapping portion for wrapping the air outlet end of the fan, and an outer flange fixedly connected to the front wrapping portion and folded outward, the abutting end surface is at least partially arranged on the outer flange, and the outer flange is arranged obliquely relative to the front wrapping portion so that the abutting end surface is an inclined surface.

7. The air-cooled cooking appliance according to claim 5, characterized in that: The ventilation window comprises a window body provided with ventilation holes and a circumferential rib arranged around the window body and extending toward the interlayer space, and the mating end surface is located at an end of the circumferential rib away from the window body; The circumferential rib has a first side and a second side opposite to the first side, and an extension length of the first side toward the fan is shorter than an extension length of the second side toward the fan, so that the mating end surface is a slope.

8. The air-cooled cooking appliance according to claim 1, characterized in that: The sealing member is sandwiched between the air vent and the fan bracket to form a seal in the circumferential direction of the air inlet duct.

9. The air-cooled cooking appliance according to claim 1, characterized in that: The fan bracket includes an air outlet and a support frame connected to the air outlet, the air outlet is provided with a flow hole, the support frame has a support end surface for supporting and positioning the fan, the support end surface is an inclined surface so that the fan is arranged obliquely relative to the air outlet, so as to form a guide cavity between the air outlet and the air outlet end of the fan, the guide cavity extends along the circumferential direction of the heat preservation cover, and is a structure with one end large and the other end small.

10. The air-cooled cooking appliance according to claim 9, characterized in that: The fan bracket also includes a positioning portion fixedly connected to the support frame and located at the periphery of the support frame. The sealing member wraps the support frame and seals with the support frame. The sealing member is provided with an avoidance notch for avoiding the positioning portion.

Images