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 and a heat preservation cover provided with an air inlet, a fan and a fan support of the air-cooled inner container are arranged between the outer cover and the heat preservation cover, and the fan support is arranged corresponding to the air inlet. One end, close to the air inlet, of the fan support is provided with an air outlet part, the fan is obliquely arranged relative to the air outlet part so as to form a flow guide cavity between the air outlet part and the air outlet end of the fan, and the flow guide cavity extends in the circumferential direction of the heat preservation cover and is of a structure with one large end and the other small end so as to guide air in the circumferential direction. According to the air-cooled cooking utensil, the probability that the cold air directly collides with the inner container is reduced, air guiding in the circumferential direction can be formed, the cold air keeps high air speed, the flowing effect of the cold air around the inner container is better, the cold air can make more sufficient contact with the inner container, and therefore the cooling efficiency of the air-cooled cooking utensil is further 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 utensils includes an outer cover and a heat preservation cover, the outer cover is provided with a ventilation window, the heat preservation cover is provided with an air inlet, the fan assembly includes a fan and a fan bracket provided corresponding to the air inlet, the air outlet of the fan and the fan bracket are generally provided in parallel, the cold air sucked from the ventilation window by the fan first passes through the air outlet and blows toward the inner pot, and then is diverted to both sides under the guidance of the curvature of the inner pot surface, and flows along the circumference of the inner pot in the gap between the inner pot and the heat preservation cover to cool the inner pot. However, this method of blowing the inner pot completely directly will cause the cold air to generate a certain amount of energy consumption due to the collision with the inner pot, thereby affecting the wind speed of the cold air and the air cooling efficiency of the fan for the inner pot. Therefore, the air cooling efficiency of the air-cooled cooking utensils can be further improved. Utility Model Content

[0004] The present application provides an air-cooled cooking appliance to solve the technical problem of further improving the air-cooling efficiency of existing air-cooled cooking appliances.

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

[0006] A wind-cooled cooking utensil comprises a pot body and an inner pot, the pot body comprises an outer cover provided with a ventilation window and a heat-insulating cover provided with an air inlet, a fan and a fan bracket for air-cooling the inner pot are provided between the outer cover and the heat-insulating cover, the fan bracket is arranged corresponding to the air inlet, the fan bracket has an air outlet at one end close to the air inlet, the fan is arranged obliquely relative to the air outlet 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-insulating cover, and is a structure with one end being large and the other end being small to form circumferential air guidance.

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

[0008] The fan bracket comprises a support frame connected to the air outlet portion, the support frame has a support end surface for supporting and positioning the fan, and the support end surface is an inclined surface.

[0009] An extension length of the front end of the support frame toward the fan is shorter than an extension length of the rear end of the support frame toward the fan.

[0010] The air-cooled cooking appliance also includes a positioning frame located between the fan and the fan bracket, the positioning frame having 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 having a front end surface for installing the fan, and the rear frame having a rear end surface for connecting the fan bracket, the front end surface and / or the rear end surface being an inclined surface so that the fan is arranged obliquely relative to the air outlet.

[0011] The air-cooled cooking appliance also includes a positioning frame located between the fan and the fan bracket, the positioning frame having 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 and the rear frame are both structures made of flexible materials to prevent air leakage at the joint between the positioning frame, the fan and the fan bracket.

[0012] The fan comprises a positioning bracket and a fan blade rotatably arranged on the positioning bracket, the positioning bracket has a mounting end surface connected to the fan bracket, and the mounting end surface is an inclined surface so that the fan is arranged tilted relative to the air outlet.

[0013] The outer cover and the heat-insulating cover include a front interlayer located between the front of the outer cover and the front of the heat-insulating cover, a rear interlayer located between the rear of the outer cover and the rear of the heat-insulating cover, and an intermediate interlayer connecting the front interlayer and the rear interlayer. The fan is at least partially located in the intermediate interlayer, and the side of the fan close to the rear interlayer is inclined outward so that the volume of the guide cavity close to one end of the rear interlayer is larger than its volume close to one end of the front interlayer.

[0014] The air outlet portion includes a main body portion corresponding to a partial area of ​​the air outlet end of the fan, and a flow guide portion connected to the main body portion, the flow guide portion corresponds to another partial area of ​​the air outlet end of the fan, and the main body portion is provided with a flow hole.

[0015] The main body is further provided with an air guide blade located in the flow hole, the air guide blade is arranged obliquely from top to bottom, and the upper end of the air guide blade is close to the air outlet end of the fan, and the lower end is close to the air inlet.

[0016] The guide portion includes a breathable area and a non-breathable area, the breathable area corresponds to the end of the guide cavity with a smaller volume, and the breathable area is provided with breathable holes.

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

[0018] 1. Compared with the technical solution in the prior art that the fan and the air outlet are parallel to each other, and the cross-sectional area of ​​the chamber formed between the two is roughly the same from one end to the other end along the circumferential direction of the heat preservation cover, the fan in the present application is arranged obliquely relative to the air outlet, and a guide cavity with a large end and a small end structure extending along the circumferential direction of the heat preservation cover can be formed between the air outlet and the air outlet end of the fan. On the one hand, the obliquely arranged fan changes the outlet angle of the cold air, reduces 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, avoiding the energy consumption caused by its direct contact with the inner liner and collision with the inner liner. On the other hand, this makes the cross-sectional area of ​​one end of the guide cavity smaller than the cross-sectional area of ​​the other end, thereby forming a volume in the guide cavity. The relatively small first chamber and the relatively large second chamber make the pressure in the second chamber less than the pressure in the first chamber during the air intake process. Therefore, the wind blowing into the first chamber can flow more toward the second chamber under the pressure, so as to better form the circumferential wind guide and retain a large wind speed, so that the cold air can flow around the inner pot better and can make more full contact with the inner pot, and the cooling efficiency can be further improved. When the inner pot is an uncoated inner pot and is used to cook rice, the full 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 attached 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. In addition, the reduction in the probability of collision also makes the overall flow of the airflow relatively smooth, thereby greatly reducing the noise caused by turbulence caused by collision and improving the user experience.

[0019] 2. As a preferred embodiment of the present application, the fan bracket includes a support frame connected to the air outlet, the support frame has a support end face for supporting and positioning the fan, the support end face is an inclined surface, and the fan is arranged obliquely relative to the air outlet after installation through the oblique arrangement of the support end face, so as to form a guide cavity extending along the circumferential direction of the thermal insulation cover between the air outlet and the air outlet end of the fan, so as to achieve the effect of guiding the cold air, improve the cooling efficiency, and reduce the turbulent noise. Moreover, the support frame has good durability, and its structural strength and wear resistance are relatively high. The support positioning of the oblique installation of the fan is arranged on the support frame, which can extend the service life of the product to a certain extent. In addition, the higher structural strength of the fan bracket can better fix the fan and ensure that the fan is stable and motionless after installation, which not only improves the safety of use, but also ensures the stability of air cooling and ensures the air cooling effect on the inner liner.

[0020] Furthermore, the extension length of the front end of the support frame toward the fan is shorter than the extension length of the rear end of the support frame toward the fan, so that the support end face is an inclined surface, thereby realizing the inclined assembly of the fan. This can make full use of the redundant space between the rear of the existing outer cover and the rear of the thermal insulation cover, realize the oblique arrangement of the support end face, and achieve a compact structural layout, which contributes to the miniaturization design of the entire machine.

[0021] 3. As a preferred embodiment of the present application, the fan is installed on a positioning frame located at the front side of the fan bracket, and the positioning frame has a front frame wrapping the fan outlet end and a rear frame wrapping the fan bracket inlet end. The front end face of the front frame and / or the rear end face of the rear frame are inclined surfaces, so that the fan is arranged obliquely relative to the air outlet portion, so as to form a guide cavity extending along the circumferential direction of the heat preservation cover between the air outlet portion and the air outlet end of the fan, so as to achieve the guide effect of the cold air, improve the cooling efficiency, and reduce the turbulent noise. Moreover, setting the inclined surface on the front end face of the front frame and / or the rear end face of the rear frame helps to stabilize the position of the fan, prevent the fan from shaking during operation, improve the reliability and stability of the fan operation, and also provide a guarantee for stable air intake. In addition, setting the inclined surface on the front end face of the front frame and / or the rear end face of the rear frame can not only make the overall structure of the fan bracket and the positioning frame more concise, reduce the production cost, and improve the product competitiveness, but also make the installation and disassembly of the fan, the positioning frame and the fan bracket more convenient and quick, which helps to improve the disassembly efficiency.

[0022] 4. As a preferred embodiment of the present application, the fan is installed on a positioning frame located at the front side of the fan bracket, and the positioning frame has a front frame wrapping the fan outlet end and a rear frame wrapping the fan bracket inlet end, and the front frame and the rear frame are both made of flexible materials to prevent air leakage at the joint position between the positioning frame and the fan and the fan bracket. Such an arrangement can, on the one hand, allow the wind sucked in from the fan suction end to flow to the air outlet and the air inlet as much as possible, avoiding the leakage of wind from the joint position between the positioning frame and the fan, and the joint position between the positioning frame and the fan bracket, which causes waste of air volume, thereby helping to further improve the air cooling effect on the liner; on the other hand, the front frame and the rear frame are made of flexible materials, which can provide a certain protection performance for the fan, and can also have a certain vibration absorption effect on the vibration during the operation of the fan, reduce the fan operation noise, and further improve the user experience; further, the flexibility of the positioning frame also provides adaptive adjustment performance for the oblique installation of the fan, ensures the installation position of the fan, and helps to improve assembly efficiency.

[0023] 5. As a preferred embodiment of the present application, the fan includes a positioning bracket and a fan blade rotatably arranged on the positioning bracket, the positioning bracket has a mounting end surface connected to the fan bracket, and the mounting end surface is an inclined surface so that the fan is arranged obliquely relative to the air outlet, so that a guide cavity extending along the circumferential direction of the heat preservation cover can be formed between the air outlet and the air outlet end of the fan, achieving a guide effect for cold air, improving cooling efficiency, and reducing turbulent noise. Using the mounting end surface of the positioning bracket to achieve an inclined assembly of the fan is conducive to simplifying the design of the fan bracket and reducing the cost of modifying the fan bracket.

[0024] 6. As a preferred embodiment of the present application, the fan is at least partially located in the middle interlayer between the outer cover and the thermal insulation cover, and the side of the fan close to the rear interlayer between the outer cover and the thermal insulation cover is inclined outward so that the volume of the guide cavity close to one end of the rear interlayer is larger than its volume close to one end of the front interlayer. In this way, the redundant space in the rear interlayer between the outer cover and the thermal insulation cover can be fully utilized to realize the oblique arrangement of the fan, which not only ensures the wind drainage effect, but also does not increase the volume of the whole machine, reduces the cost of modifying the whole machine, and thus improves the competitiveness of the product.

[0025] 7. As a preferred embodiment of the present application, the air outlet portion includes a main body portion corresponding to a partial area of ​​the air outlet end of the fan, and a flow guide portion connected to the main body portion, the flow guide portion corresponds to another partial area of ​​the air outlet end of the fan, and the main body portion is provided with a flow hole. In this way, the area of ​​the fan air outlet end is larger than the area of ​​the flow hole of the air outlet portion. On the one hand, it can reduce the leakage of heat during the cooking process and when the fan is not running to ensure the thermal efficiency of cooking. On the other hand, it can increase the air intake when the fan is running to achieve rapid cooling of the liner. Specifically, the wind at the fan air outlet end facing the flow hole can flow directly to the air inlet through the flow hole, while the wind at the fan air outlet end facing the flow guide portion can flow upward into the flow hole under the pressure difference and the drainage effect of the flow guide portion corresponding to the second chamber. Therefore, the two winds flow into the flow hole together, and the cold wind can have a certain pressure when it is discharged from the air inlet, thereby increasing the flow rate of the cold wind.

[0026] Furthermore, the main body is further provided with an air guide blade located in the flow hole, and the air guide blade is arranged obliquely from top to bottom, and the upper end of the air guide blade is close to the air outlet of the fan, and the lower end is close to the air inlet. The arrangement of the air guide blades in this embodiment can, on the one hand, block and guide the wind directed upward from the guide cavity so that it flows into the heat preservation cover, rather than continuing to move upward and colliding with the upper air intake to disrupt the gas flow direction, and on the other hand, can direct as much wind as possible to the lower part of the inner pot, so that the lower part of the inner pot is fully cooled, which facilitates the separation of food from the inner wall of the inner pot and improves the non-stick effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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:

[0028] Figure 1 A partial structural breakdown of a cooking utensil in one embodiment of the present application Figure 1 ;

[0029] Figure 2 A cross-sectional view of a portion of the structure of a cooking utensil in one embodiment of the present application Figure 1 ;

[0030] Figure 3 A cross-sectional view of a portion of the structure of a cooking utensil in one embodiment of the present application Figure 2 ;

[0031] Figure 4 A cross-sectional view of a cooking utensil according to an embodiment of the present invention Figure 3 ;

[0032] Figure 5 A partial structural breakdown of a cooking utensil in one embodiment of the present application Figure 2 ;

[0033] Figure 6 A three-dimensional diagram of a fan bracket according to an embodiment of the present application;

[0034] Figure 7 A side view of a fan bracket according to an embodiment of the present application;

[0035] Figure 8 A top view of a fan bracket according to an embodiment of the present application;

[0036] Fig. 9 A side view of a fan bracket according to another embodiment of the present application;

[0037] Fig.10 A cross-sectional view of a positioning frame according to an embodiment of the present application.

[0038] in,

[0039] 1. Fan;

[0040] 2. Fan bracket; 20. Air outlet; 21. Main body; 211. Flow hole; 22. Air guide; 23. Support frame; 24. Support end surface; 25. Air guide blade; 26. Second latch; 27. Air permeable area; 28. Non-air permeable area; 29. ​​Air permeable hole;

[0041] 3. Positioning frame; 31. Front frame; 32. Rear frame; 33. Positioning column; 34. First latch tongue; 35. Clamp hole;

[0042] 4. Diversion cavity;

[0043] 5. Outer cover; 51. Ventilation window;

[0044] 6. Insulation cover; 61. Air inlet;

[0045] 7. Inner liner;

[0046] 8. Anterior interlayer;

[0047] 9. Middle layer;

[0048] 10. Rear interlayer. DETAILED DESCRIPTION

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] like Figures 1 to 6 As shown, an air-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 and a heat-insulating cover 6 provided with an air inlet 61, a fan 1 and a fan bracket 2 for air-cooling the inner pot 7 are provided between the outer cover 5 and the heat-insulating cover 6, the fan bracket 2 is arranged corresponding to the air inlet 61, and the fan bracket 2 has an air outlet 20 at one end close to the air inlet 61, the fan 1 is arranged obliquely relative to the air outlet 20 to form a guide cavity 4 between the air outlet 20 and the air outlet end of the fan 1, the guide cavity 4 extends along the circumferential direction of the heat-insulating cover 5, and is a structure with one end being large and the other end being small to form a circumferential air guide.

[0055] It should be noted that the present application does not specifically limit the form of the air outlet 20. For example, in one embodiment, some areas of the air outlet are provided with flow holes, and some areas are solid. Part of the wind flowing out of the air outlet of the fan flows out directly through the flow holes, and the other part flows out from the flow holes after passing through the solid part; in another embodiment, all the air outlets are provided with flow holes, and the wind flowing out of the air outlet of the fan flows directly to the air inlet 61 through the flow holes. The air outlet 20 can be a plane or a curved surface, and those skilled in the art can choose according to actual conditions.

[0056] The present application does not limit the type of the inner pot 7. Preferably, the inner pot 7 is an uncoated inner pot. By running the fan 1 at the end of the cooking stage of the cooking utensil to cool the inner pot 7, the water vapor inside the inner pot 7 can be liquefied and condensed to form a water film between the food and the inner wall of the inner pot 7, thereby preventing the food from sticking to the inner wall of the inner pot 7 after gelatinization, thereby increasing the cleaning burden of the user. Of course, the inner pot 7 can also be a coated inner pot, which is not limited here.

[0057] Compared with the technical solution in the prior art that the fan and the air outlet are parallel to each other, and the cross-sectional area of ​​the chamber formed between the two is roughly the same from one end to the other end along the circumferential direction of the heat preservation cover, the fan 1 in the present application is arranged obliquely relative to the air outlet, and can form a guide cavity 4 extending along the circumferential direction of the heat preservation cover 6 between the air outlet 20 and the air outlet end of the fan, and having a structure of being large at one end and small at the other end. On the one hand, the obliquely arranged fan 1 changes the outlet angle of the cold air, and reduces the probability of direct collision between the cold air and the inner liner 7, so that part of the cold air can enter the gap between the inner liner 7 and the heat preservation cover 6 obliquely along the circumferential direction from the larger end of the guide cavity 4, avoiding its direct contact with the inner liner 7 and collision with the inner liner 7 to generate energy consumption. On the other hand, this makes the cross-sectional area of ​​one end of the guide cavity 4 smaller than the cross-sectional area of ​​the other end, thereby forming a guide cavity 4 in the guide cavity 4. The invention forms a first chamber with a relatively small volume and a second chamber with a relatively large volume, 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, so as to better form the circumferential wind guide and retain a large wind speed, so that the cold air can flow around the inner pot better and can make more sufficient contact with the inner pot 7, and the cooling efficiency can be further improved. When the inner pot 7 is an uncoated inner pot and is used to cook rice, the sufficient cooling of the inner pot 7 can quickly reduce the temperature of the inner pot, so that the water vapor in the inner pot 7 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 the rice adhering to the inner wall of the inner pot, making it convenient for users to clean the inner pot.

[0058] In addition, the reduction in collision probability also makes the overall airflow flow relatively smooth, thereby greatly reducing the noise caused by turbulence caused by collisions and improving the user experience.

[0059] To describe this application more clearly, Figure 4 Taking the orientation shown in as an example, an embodiment of the present application is further described in detail. The tilted arrangement of the fan 1 in the present application causes the cross-sectional area of ​​the guide chamber 4 along the circumferential direction of the heat preservation cover 6 to change, so that the cross-sectional area of ​​the right end of the guide chamber 4 is smaller than that of the left end, so as to form a first chamber with a relatively small volume at the right end and a second chamber with a relatively large volume at the left end in the guide chamber 4, so that the pressure in the second chamber is lower than the pressure in the first chamber during the air intake process, and the wind blowing into the first chamber flows more and faster to the second chamber under the action of pressure and obliquely enters the gap between the inner liner and the heat preservation cover.

[0060] As a preferred implementation of the present application, Figure 4As shown, the volume of the guide cavity 4 gradually increases from the right side to the left side, thereby realizing a step-by-step reduction in pressure from the first chamber to the second chamber, avoiding noise caused by air disturbance due to sudden pressure changes, and improving user experience.

[0061] The implementation method for realizing the tilted arrangement of the fan 1 in the present application may adopt any one of the following implementations:

[0062] Implementation method 1: Figure 1 , Figure 3 , Figures 4 to 6 , Figure 8 As shown, the fan bracket 2 includes a support frame 23 connected to the air outlet portion 20, and the support frame 23 has a support end surface 24 for supporting and positioning the fan 1, and the support end surface 24 is an inclined surface.

[0063] By arranging the support end face 24 obliquely, the fan 1 is arranged obliquely relative to the air outlet 20 after installation, so as to form a guide cavity 4 extending along the circumferential direction of the heat preservation cover 6 between the air outlet 20 and the air outlet end of the fan 1, thereby achieving the effect of guiding the cold air, improving the cooling efficiency, and reducing the turbulent noise. In addition, the support frame 23 has good durability, and its structural strength and wear resistance are relatively high. The support positioning of the oblique installation of the fan 1 is arranged on the support frame 23, which can extend the service life of the product to a certain extent. In addition, the higher structural strength of the fan bracket 2 can better fix the fan 1 and ensure that the fan 1 is stable and motionless after installation, which not only improves the safety of use, but also ensures the stability of air cooling and ensures the air cooling effect on the inner tank 7.

[0064] The "supporting end surface for supporting and positioning the fan" may be a direct support or an indirect support. For example, in one embodiment, the fan 1 is directly mounted on the fan bracket 2, and the supporting end surface 24 directly supports and positions the fan 1. In another embodiment, Figures 1 to 5 As shown, a positioning frame 3 is provided between the fan bracket 2 and the fan 1. The positioning frame 3 is installed on the fan bracket 2 and abuts against the supporting end surface 24. The fan 1 is installed on the positioning frame 3. That is, in this embodiment, the supporting end surface 24 indirectly supports and positions the fan 1 through the positioning frame 3 so that the fan 1 is arranged at an angle.

[0065] As a preferred embodiment of this embodiment, refer to Figure 4 and Figure 7 The extension length of the front end of the support frame 23 toward the fan 1 is smaller than the extension length of the rear end of the support frame 23 toward the fan 1, so that the support end surface 24 is an inclined surface, thereby realizing the inclined assembly of the fan 1.

[0066] Below Figure 4 Taking the orientation shown in as an example, this embodiment is further described in detail, wherein Figure 4The right side is the front end of the pot body, that is, the end facing the user, where a lid opening button or a display panel is generally provided, and the space is relatively small. The left side is the rear end of the pot body, that is, the end away from the user, and the space is relatively large. In addition, for a cooking utensil with a square pot body, since the inner pot is generally a round pot, a space with a wide back and a narrow front is formed between the square pot body and the round pot. By making the front end of the support frame 23 (that is, Figure 4 The extension length of the rear end of the support frame 23 (i.e. Figure 4 The extended length of the left end in the middle can make full use of the redundant space between the rear of the existing outer cover 5 and the rear of the thermal insulation cover 6, realize the oblique arrangement of the support end surface 24, and realize the compact layout of the structure, which is conducive to the miniaturization design of the whole machine.

[0067] Implementation Method 2: Reference Figures 1 to 5 , Fig.10 The air-cooled cooking appliance also includes a positioning frame 3 located between the fan 1 and the fan bracket 2, the positioning frame 3 has a front frame 31 that wraps the air outlet end of the fan 1, and a rear frame 32 that wraps the air inlet end of the fan bracket 2, the front frame 31 has a front end surface for installing the fan 1, and the rear frame 32 has a rear end surface for connecting to the fan bracket 2, the front end surface and / or the rear end surface are inclined surfaces so that the fan 1 is arranged tilted relative to the air outlet portion 20.

[0068] With such an arrangement, a guide cavity 4 extending along the circumferential direction of the heat preservation cover 6 can be formed between the air outlet portion 20 and the air outlet end of the fan 1, thereby achieving a guide effect on the cold air, improving the cooling efficiency, and reducing the turbulent noise. Moreover, setting the inclined surface on the front end face of the front frame 31 and / or the rear end face of the rear frame 32 helps to stabilize the position of the fan 1, prevents the fan 1 from shaking during operation, improves the reliability and stability of the operation of the fan 1, and also provides a guarantee for stable air intake. In addition, setting the inclined surface on the front end face of the front frame 31 and / or the rear end face of the rear frame 32 can not only make the overall structure of the fan bracket 2 and the positioning frame 3 more concise, reduce the production cost, and improve the product competitiveness, but also make the installation and disassembly of the fan 1, the positioning frame 3 and the fan bracket 2 more convenient and quick, which helps to improve the disassembly efficiency.

[0069] Embodiment 3: The fan 1 includes a positioning bracket and a fan blade rotatably arranged on the positioning bracket. The positioning bracket has a mounting end surface connected to the fan bracket 2. The mounting end surface is an inclined surface so that the fan 1 is arranged obliquely relative to the air outlet 20, so that a guide cavity 4 extending along the circumferential direction of the heat preservation cover 6 can be formed between the air outlet 20 and the air outlet end of the fan 1, achieving a guide effect for cold air, improving cooling efficiency, and reducing turbulent noise. Using the mounting end surface of the positioning bracket to achieve the inclined assembly of the fan 1 is conducive to simplifying the design of the fan bracket 2 and reducing the modification cost of the fan bracket 2.

[0070] As a preferred implementation of the present application, Figures 1 to 5 , Fig.10 As shown, the air-cooled cooking appliance also includes a positioning frame 3 located between the fan 1 and the fan bracket 2, the positioning frame 3 has a front frame 31 that wraps the air outlet end of the fan 1, and a rear frame 32 that wraps the air inlet end of the fan bracket 2, and the front frame 31 and the rear frame 32 are both structures made of flexible materials to prevent air leakage at the joint between the positioning frame 3 and the fan 1 and the fan bracket 2.

[0071] Such an arrangement, on the one hand, can make the wind sucked in from the suction end of the fan 1 flow to the air outlet 20 and the air inlet 61 as much as possible, avoiding the leakage of wind from the joint position between the positioning frame 3 and the fan 1, and the joint position between the positioning frame 3 and the fan bracket 2, which causes waste of air volume, thereby helping to further improve the air cooling effect on the inner tank 7; on the other hand, the front frame 31 and the rear frame 32 themselves are made of flexible materials, 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, reducing the fan operation noise and further improving the user experience; further, the flexibility of the positioning frame 3 also provides adaptive adjustment performance for the oblique installation of the fan 1, ensuring the installation position of the fan 1, and helping to improve assembly efficiency.

[0072] As a preferred embodiment of this implementation, Figure 1 , Figure 3 , Figure 5 and Fig.10 As shown, the positioning frame 3 has a positioning column 33 which is fixedly connected to the front frame 31 and extends toward the fan 1. The fan 1 is provided with a positioning hole adapted to the positioning column 33. The positioning column 33 is provided with a first latch 34 for forward entry and reverse locking. The positioning column 33 extends into the positioning hole and is snap-fitted with the fan 1 through the first latch 34, thereby realizing screw-free assembly between the fan 1 and the positioning frame 3, which helps to improve the assembly efficiency between the fan 1 and the positioning frame 3.

[0073] As a preferred embodiment of this implementation, Figure 5 , Figure 6 and Fig.10 As shown, the rear frame 32 is provided with a plurality of snap holes 35 along its circumference, and the fan bracket 2 is provided with a plurality of second snap tongues 26. The second snap tongues 26 extend into the snap holes 35 to achieve snap-fitting between the rear frame 32 and the fan bracket 2, thereby achieving screw-free assembly, which helps to improve the assembly efficiency of the positioning frame 3 and the fan bracket 2.

[0074] As a preferred implementation of the present application, Figure 4As shown, the outer cover 5 and the heat-insulating cover 6 include a front interlayer 8 located between the front of the outer cover 5 and the front of the heat-insulating cover 6, a rear interlayer 10 located between the rear of the outer cover 5 and the rear of the heat-insulating cover 6, and an intermediate interlayer 9 connecting the front interlayer 8 and the rear interlayer 10. The fan 1 is at least partially located in the intermediate interlayer 9, and the side of the fan 1 close to the rear interlayer 10 is inclined outward so that the volume of the guide cavity 4 close to the rear interlayer 10 is larger than the volume of the end close to the front interlayer 8.

[0075] Different from the front side of the cooking appliance which is provided with many functional areas such as display area, operation area, etc., the utilization rate of the rear space of the cooking appliance is relatively low. The present embodiment can make full use of the redundant space in the rear interlayer 10 between the outer cover 5 and the heat preservation cover 6 to realize the oblique arrangement of the fan 1, which not only ensures the wind drainage effect, but also does not increase the volume of the whole machine, reduces the cost of modifying the whole machine, and thus improves the competitiveness of the product.

[0076] In addition, the arrangement position of the fan 1 also determines the setting position of the ventilation window 51. Therefore, the ventilation window 51 of the outer cover 5 is located at a relatively rearward position of the outer cover 5, thereby realizing a "hidden" arrangement of the ventilation window 51, that is, the user will find it difficult to find the ventilation window 51 through the front side of the cooking utensil without paying enough attention, thereby improving the overall appearance of the cooking utensil and thus helping to improve the user experience.

[0077] by Figure 4 Taking the orientation shown in as an example for further explanation, the left side of the insulation cover, the section perpendicular to the left and right central axis of the pot body is the rear of the insulation cover 6, and the right side of the insulation cover, the section perpendicular to the left and right central axis of the pot body is the front of the insulation cover 6.

[0078] As a preferred embodiment of the present application, refer to Figure 1 , Figure 5 , Figure 6 and Figure 7 The air outlet portion 20 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 main body portion 21 is provided with a flow hole 211.

[0079] In this way, the area of ​​the fan outlet end is larger than the area of ​​the flow hole 211. On the one hand, it can reduce heat leakage during the cooking process and when the fan is not running to ensure the thermal efficiency of cooking. On the other hand, it can increase the air intake when the fan is running to achieve rapid cooling of the inner pot 7. Specifically, the wind at the fan outlet end directly opposite to the flow hole 211 can flow directly to the air inlet 61 through the flow hole 211, while the wind at the fan outlet end directly opposite to the guide portion can flow upward into the flow hole 211 under the pressure difference and the drainage effect of the guide portion 22 corresponding to the second chamber. Therefore, the two winds flow into the flow hole 211 together, and the cold air can have a certain pressure when it is discharged from the air inlet 61, thereby increasing the flow rate of the cold air. Reference Figure 5 , a pipeline marked with an arrow inside schematically shows the flow direction of a wind flowing into the guide cavity 4.

[0080] In one embodiment, Figure 6 As shown, the surface of the guide portion 22 facing the air outlet of the fan 1 is a flat surface, so as to avoid disturbance of the air flow due to unevenness or other additional structures. In another embodiment, the surface of the guide portion 22 facing the air outlet of the fan 1 is provided with an air guide structure, for example, the air guide structure is an air guide arc surface or an air guide slope surface that is recessed from the right side of the guide cavity 4 to the left side of the guide cavity 4, so as to guide the wind entering the guide cavity 4.

[0081] As a preferred embodiment of this implementation, Figure 1 , Figure 5 and Figure 6 As shown, the main body 21 is provided with an air guide blade 25 located in the flow hole 211. The air guide blade 25 is arranged obliquely from top to bottom, and the upper end of the air guide blade 25 is close to the air outlet of the fan 1, and the lower end is close to the air inlet 61. The arrangement of the air guide blade 25 in this embodiment can, on the one hand, block and guide the wind directed upward from the guide cavity 4 so that it flows into the heat preservation cover 6, rather than continuing to move upward and colliding with the upper air intake to disrupt the gas flow direction. On the other hand, as much wind as possible can be directed to the lower part of the inner pot 7, so that the lower part of the inner pot 7 can be fully cooled, which is convenient for separating the food from the inner wall of the inner pot 7 and improving the non-stick effect.

[0082] Furthermore, a plurality of wind guide blades 25 are arranged at intervals from top to bottom in the flow hole 211. On the one hand, the wind can be guided, and on the other hand, the flow hole 211 can be divided into a plurality of flow channels, thereby reducing the cross-sectional area of ​​a single flow channel to increase the flow speed of the wind, so that after the wind enters the heat preservation cover 6 from the air inlet 61, it has a stronger flow inertia, thereby improving the air cooling effect.

[0083] As a preferred embodiment of this implementation, Fig. 9As shown, the guide portion 22 includes a breathable area 27 and a non-breathable area 28 . The breathable area 27 corresponds to the end of the guide cavity 4 with a smaller volume. The breathable area 27 is provided with breathable holes 29 .

[0084] The air permeable area 27 corresponds to the smaller end of the guide cavity 4. Due to its small size, the distance between this area and the air outlet end of the fan 1 is relatively small. Cold wind can easily collide with the guide part 22 here to produce backflow. By adding air holes 29, part of the gas entering the air guide cavity can be discharged through the air holes 29, thereby reducing the backflow of wind, which not only reduces the impact of the backflow on the rotation of the fan 1, but also reduces the collision and friction between the backflow wind and the forward flow wind, thereby reducing noise.

[0085] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[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 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 and a heat-insulating cover provided with an air inlet, a fan and a fan bracket for air-cooling the inner pot are provided between the outer cover and the heat-insulating cover, the fan bracket being provided corresponding to the air inlet, and characterized in that: The fan bracket has an air outlet at one end close to the air inlet, and the fan is arranged obliquely relative to the air outlet 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 being large and the other end being small to form a circumferential wind guide.

2. The air-cooled cooking appliance according to claim 1, characterized in that: The fan bracket comprises a support frame connected to the air outlet portion, the support frame has a support end surface for supporting and positioning the fan, and the support end surface is an inclined surface.

3. The air-cooled cooking appliance according to claim 2, characterized in that: An extension length of the front end of the support frame toward the fan is shorter than an extension length of the rear end of the support frame toward the fan.

4. The air-cooled cooking appliance according to claim 1, characterized in that: The air-cooled cooking appliance also includes a positioning frame located between the fan and the fan bracket, the positioning frame having 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 having a front end surface for installing the fan, and the rear frame having a rear end surface for connecting the fan bracket, the front end surface and / or the rear end surface being an inclined surface so that the fan is arranged obliquely relative to the air outlet.

5. The air-cooled cooking appliance according to claim 1, characterized in that: The air-cooled cooking appliance also includes a positioning frame located between the fan and the fan bracket, the positioning frame having 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 and the rear frame are both structures made of flexible materials to prevent air leakage at the joint between the positioning frame, the fan and the fan bracket.

6. The air-cooled cooking appliance according to claim 1, characterized in that: The fan comprises a positioning bracket and a fan blade rotatably arranged on the positioning bracket, the positioning bracket has a mounting end surface connected to the fan bracket, and the mounting end surface is an inclined surface so that the fan is arranged tilted relative to the air outlet.

7. An air-cooled cooking appliance according to any one of claims 1 to 6, characterized in that: The outer cover and the heat-insulating cover include a front interlayer located between the front of the outer cover and the front of the heat-insulating cover, a rear interlayer located between the rear of the outer cover and the rear of the heat-insulating cover, and an intermediate interlayer connecting the front interlayer and the rear interlayer. The fan is at least partially located in the intermediate interlayer, and the side of the fan close to the rear interlayer is inclined outward so that the volume of the guide cavity close to one end of the rear interlayer is larger than its volume close to one end of the front interlayer.

8. An air-cooled cooking appliance according to any one of claims 1 to 6, characterized in that: The air outlet portion includes a main body portion corresponding to a partial area of ​​the air outlet end of the fan, and a flow guide portion connected to the main body portion, the flow guide portion corresponds to another partial area of ​​the air outlet end of the fan, and the main body portion is provided with a flow hole.

9. The air-cooled cooking appliance according to claim 8, characterized in that: The main body is further provided with an air guide blade located in the flow hole, the air guide blade is arranged obliquely from top to bottom, and the upper end of the air guide blade is close to the air outlet end of the fan, and the lower end is close to the air inlet.

10. The air-cooled cooking appliance according to claim 8, characterized in that: The guide portion includes a breathable area and a non-breathable area, the breathable area corresponds to the end of the guide cavity with a smaller volume, and the breathable area is provided with breathable holes.

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