Cooking utensil

Abstract

The utility model provides a cooking utensil which comprises a heating base which comprises a shell, a heat preservation cover arranged in the shell and a heating assembly at least partially located in the heat preservation cover, and an air inlet communicated with the outside is formed in the shell; the inner container is arranged in the heat preservation cover and can make contact with the heating assembly, and a ventilation gap is formed between the side wall of the inner container and the side wall of the heat preservation cover; the air blowing assembly is located between the bottom wall of the heat preservation cover and the bottom wall of the shell, an inlet of the air blowing assembly is communicated with the air inlet, and an outlet of the air blowing assembly is communicated with the ventilation gap through the air outlet, so that the temperature rise of the shell is reduced while three-dimensional heating is conducted on the inner container.

Description

Technical Field

[0001] The utility model relates to the field of small household appliances, in particular to a cooking appliance. Background Art

[0002] In existing cooking appliances, such as an electric slow cooker, it includes a heating base, a cooking pot body and an inner pot. The inner pot is located in the cooking pot body and placed on the heating base, and then heats the food in the inner pot. The material of the inner pot is usually ceramic. Although the ceramic can keep the original flavor of the food, due to the low thermal conductivity of the ceramic material, the heat generated by the heating device of the heating base cannot effectively heat the food in the inner pot, resulting in a large part of the heat diffusing to the surrounding through the bottom of the heating device, causing a large part of the heat waste, low heating efficiency of the heating device and long cooking time.

[0003] In addition, the diffused heat will also cause the temperature of the cooking pot body to rise, which is likely to cause certain risks. Summary of the Utility Model

[0004] In view of this, it is necessary to provide a cooking appliance to solve the above problems, so as to reduce heat waste and improve heating efficiency.

[0005] The utility model provides a cooking appliance, including: a heating base, including a housing, a heat preservation cover arranged in the housing and a heating component at least partially located in the heat preservation cover, and an air inlet communicating with the outside is arranged on the housing; an inner pot, arranged in the heat preservation cover and capable of contacting the heating component, and there is a ventilation gap between the side wall of the inner pot and the side wall of the heat preservation cover; and a blowing component, located between the bottom wall of the heat preservation cover and the bottom wall of the housing, the inlet of the blowing component is communicated with the air inlet, and the outlet of the blowing component is communicated with the ventilation gap through the air outlet.

[0006] In the above cooking appliance, the heating component is used to directly heat the part of the inner pot in contact with the heating component. Through the setting of the blowing component, the hot air in the housing enters the heat preservation cover through the blowing component, and drives the heat radiated from the periphery of the heating component upward, so as to form hot air in the ventilation gap and heat the side wall of the inner pot, making the inner pot evenly heated and realizing three-dimensional heating; and it can improve the utilization rate of the heat generated by the heating component, reduce heat waste, thereby improving the heating efficiency and shortening the cooking time. In addition, since the heat around the heating component is driven upward and blown away, it is beneficial to reduce the temperature rise at the bottom of the heat preservation cover; and since the inlet of the blowing component is located in the housing, it will cause negative pressure in the housing, so that the lower temperature air outside enters the housing, which is beneficial to reduce the temperature rise of the housing.

[0007] In one embodiment, at least part of the air outlet on the heat preservation cover is located below the heating component.

[0008] With such a setting, the wind entering the heat preservation cover from the air outlet can first come into full contact with the heating component and quickly increase in temperature, and then flow around, ensuring that the temperature of the hot air in contact with the side wall of the inner container is relatively high.

[0009] In one embodiment, the air inlet is opened on the bottom wall of the outer shell.

[0010] With such a setting, when the blowing component works, it can suck the cold air at the bottom and the side of the outer shell into the cooking appliance through the air inlet, ensuring that both the bottom and the side of the outer shell can be maintained at a relatively low temperature and reducing the temperature rise of other components inside the outer shell.

[0011] In one embodiment, the blowing component includes a bracket and a fan arranged on the bracket. The bracket is arranged on the outer shell and / or the heat preservation cover. The inlet of the fan is communicated with the air inlet, and the outlet of the fan is communicated with the air outlet.

[0012] With such a setting, the structures of the bracket and the fan are simple, the cost is relatively low, and they do not occupy too much space inside the outer shell or the heat preservation cover.

[0013] In one embodiment, the blowing component further includes a duct having a wind guiding channel. One end of the duct is connected to the outlet of the fan, and the other end of the duct is connected to the air outlet of the heat preservation cover to communicate the outlet of the fan and the air outlet through the wind guiding channel.

[0014] With such a setting, the duct can play a role in guiding the wind blown by the blowing component. The duct enables the wind flowing out of the outlet of the fan to flow into the heat preservation cover through the wind guiding channel of the duct and the air outlet, improving the gas utilization rate.

[0015] In one embodiment, along the flow direction of the wind passing through the air outlet, the cooking appliance further includes a wind guiding structure arranged on the heat preservation cover or the heating component.

[0016] With such a setting, the wind guiding structure can play a role in guiding the wind inside the heat preservation cover, enabling the wind at the bottom of the heat preservation cover to flow uniformly upward along the outer circumference of the inner container, ensuring uniform heating of the inner container and improving the heating efficiency.

[0017] In one embodiment, the wind guiding structure includes a plurality of wind guiding ribs arranged at intervals along the circumferential direction of the heat preservation cover and / or the air outlet.

[0018] With such a setting, the hot air inside the heat preservation cover can flow along the extending direction of the wind guiding ribs and be uniformly distributed along the outer circumference of the inner container.

[0019] In one embodiment, the air guiding ribs are spiral and are arranged at the joint of the bottom wall of the heat preservation cover and the side wall of the heat preservation cover.

[0020] With such an arrangement, the air flowing through the air guiding ribs can gradually flow upward in a spiral shape along the circumferential direction of the inner container, ensuring that the hot air outside the inner container is circumferentially uniform and overall flows upward.

[0021] In one embodiment, the inner container is made of ceramic material.

[0022] With such an arrangement, the original flavor of the food materials can be maintained, and the cooking effect can be improved.

[0023] In one embodiment, the heating assembly is arranged to be liftable relative to the bottom wall of the heat preservation cover.

[0024] With such an arrangement, it can be ensured that the bottom walls of inner containers of different sizes can be in contact with the heating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic cross-sectional structure view of a cooking appliance according to an embodiment of the present utility model;

[0026] Figure 2 is Figure 1 an exploded cross-sectional schematic view of the cooking appliance;

[0027] Figure 3 is Figure 1 an air flow direction diagram of the cooking appliance;

[0028] Figure 4 is Figure 1 a schematic structure view of the heat preservation cover and the air guiding structure of the cooking appliance from a top view perspective.

[0029] Reference numerals: 10, heating base; 11, outer shell; 111, air inlet; 12, heating assembly; 13, reset member; 20, heat preservation cover; 21, air outlet; 30, inner container; 40, blowing assembly; 41, bracket; 42, fan; 43, air duct; 431, air guiding channel; 50, air guiding structure; 51, air guiding rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] It should be noted that when a component is referred to as "installed on" another component, it can be directly on the other component or there can be an intermediate component. When a component is considered to be "arranged on" another component, it can be directly arranged on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0033] In existing cooking appliances, such as electric slow cookers, they include a heating base, a cooking pot body, and an inner pot. The inner pot is located within the cooking pot body and placed on the heating base, thereby heating the ingredients in the inner pot. The material of the inner pot is usually ceramic. Although ceramic can keep the original flavor of the ingredients, due to the low thermal conductivity of the ceramic material, the heat generated by the heating device of the heating base cannot effectively heat the ingredients in the inner pot, resulting in a large part of the heat diffusing to the surrounding through the bottom of the heating device, causing a large amount of heat waste, low heating efficiency of the heating device, and long cooking time. In addition, the diffused heat will also cause the temperature of the cooking pot body to rise, which is likely to cause certain risks.

[0034] To solve the above problems, as Figures 1 to 4 shown, this application provides a cooking appliance to reduce heat waste and improve heating efficiency.

[0035] As Figure 1 and Figure 3 shown, specifically, the cooking appliance includes a heating base 10, a heat preservation cover 20, an inner pot 30, and a blowing component 40, where: the heating base 10 includes a housing 11 and a heating component 12 located within the housing 11, and an air inlet 111 is provided on the housing 11; the heat preservation cover 20 is arranged within the housing 11, and at least a part of the heating component 12 is located within the heat preservation cover 20, and an air outlet 21 is opened on the bottom wall of the heat preservation cover 20; the inner pot 30 is arranged within the heat preservation cover 20 and can be in contact with the heating component 12, and there is a ventilation gap between the side wall of the inner pot 30 and the side wall of the heat preservation cover 20; the blowing component 40 is located between the bottom wall of the heat preservation cover 20 and the bottom wall of the housing 11, the inlet of the blowing component 40 is communicated with the air inlet 111, and the outlet of the blowing component 40 is communicated with the ventilation gap through the air outlet 21.

[0036] In the cooking appliance provided by the embodiment of the present utility model, the heating component 12 is used to directly heat the part of the inner container 30 in contact with the heating component 12, such as the bottom wall of the inner container 30. Through the arrangement of the blowing component 40, the hot air in the outer shell 11 enters the heat preservation cover 20 through the blowing component, and drives the heat radiated from the periphery of the heating component 12 upward, so as to form hot air in the ventilation gap. The hot air in the ventilation gap can heat the side wall of the inner container 30, so that the inner container is heated evenly, realizing three-dimensional heating of the inner container 30. And it can improve the utilization rate of the heat generated by the heating component, reduce heat waste, thereby improving the heating efficiency and shortening the cooking time. On the other hand, since the heat around the heating component 12 is driven upward and blown away, it is beneficial to reduce the temperature rise at the bottom of the heat preservation cover 20; in addition, since the inlet of the blowing component 40 is located in the outer shell 11, a negative pressure will be formed at the inlet of the blowing component 40 during operation, so that the air in the outer shell 11 is sucked into the blowing component 40, and the air that is communicated with the outside and has a lower temperature will enter the outer shell 11, which is beneficial to reduce the temperature rise of the outer shell, and thus can also prevent the temperature of other components in the outer shell 11 from rising, avoiding risks and ensuring the safe use of the cooking appliance.

[0037] In one embodiment, the inner container 30 is made of ceramic material. The inner container 30 made of ceramic material can keep the original flavor of the food materials, and through the cooperation of the heating component 12 and the blowing component 40, the heat generated by the heating component 12 can effectively heat the food materials in the inner container 30, thereby improving the cooking effect. Of course, in other embodiments, the inner container 30 can also be made of other materials such as stainless steel and aluminum alloy, and the embodiment of the present utility model does not make specific limitations here.

[0038] As Figure 1 shown, the heating component 12 is arranged to be liftable relative to the bottom wall of the heat preservation cover 20. When the inner container 30 is placed in the heat preservation cover 20, the inner container 30 can press the heating component 12 downward, so that the heating component 12 descends relative to the bottom wall of the heat preservation cover 20, thereby ensuring that the bottom walls of inner containers 30 with different sizes can be attached to the heating component 12, avoiding the normal use of the cooking appliance being affected due to the size error of the inner container 30 resulting in the bottom wall of the inner container 30 not being able to be attached to the heating component 12, and at the same time, it can also expand the applicable range of the cooking appliance.

[0039] Further, the heating base 10 further includes a reset member 13 disposed between the bottom wall of the heating assembly 12 and the bottom wall of the heat preservation cover 20, or between the bottom wall of the heating assembly 12 and the bottom wall of the housing 11, such as a spring. When the inner container 30 is placed in the heat preservation cover 20, the heating assembly 12 descends relative to the bottom wall of the heat preservation cover 20, and the reset member 13 is compressed, and can apply a force towards the inner container 30 to the heating assembly 12, so that the bottom wall of the inner container 30 can be closely attached to the heating assembly 12. After the inner container 30 is taken out, the heating assembly 12 can rise and reset relative to the bottom wall of the heat preservation cover 20 under the action of the reset member 13.

[0040] As Figures 3 to 4 shown, the air outlet 21 on the heat preservation cover 20 is at least partially located below the heating assembly 12, so that the air entering the heat preservation cover 20 from the air outlet 21 can contact the heating assembly 12, which is beneficial to taking away the heat on the side and bottom of the heating assembly 12 and then flowing around, so as to ensure that the temperature of the hot air in contact with the side wall of the inner container 30 is relatively high. Specifically, the air outlet 21 can be opened at the center of the bottom wall of the heat preservation cover 20 or eccentrically arranged, as long as it is ensured that the air outlet 21 and the blowing assembly 40 do not interfere with other components in the housing 11 and the heat preservation cover 20. The embodiments of the present invention do not make specific limitations here.

[0041] As Figures 1 to 2 shown, in one embodiment, the air inlet 111 is opened on the bottom wall of the housing 11. When the blowing assembly 40 works, it can suck the cold air at the bottom and the side of the housing 11 into the cooking appliance through the air inlet 111, so as to ensure that both the bottom and the side of the housing 11 can be maintained at a relatively low temperature, further reducing the temperature rise of other components in the housing 11 and ensuring the use safety of the cooking appliance. Moreover, opening the air inlet 111 on the bottom wall of the housing 11 can also make the air inlet 111 not exposed, ensuring the overall regular appearance of the housing 11. Of course, in other embodiments, the air inlet 111 can also be opened on the side wall of the housing 11 or other positions, as long as the outside air can be sucked into the cooking appliance through the air inlet 111. The embodiments of the present invention do not make specific limitations here.

[0042] As Figures 2 to 3As shown, in one embodiment, the blowing assembly 40 includes a bracket 41 and a fan 42 disposed on the bracket 41. The bracket 41 is disposed on the housing 11. The inlet of the fan 42 is communicated with the air inlet 111, and the outlet of the fan 42 is communicated with the air outlet 21. The bracket 41 is used to support the fan 42 and fix the fan 42 to the housing 11. When the fan 42 rotates, it can drive the outside air to flow along the directions of the air inlet 111, the inlet of the fan 42, the outlet of the fan 42, and the air outlet 21. The structures of the bracket 41 and the fan 42 are simple, the cost is low, and they do not occupy too much space inside the housing 11. Of course, in other embodiments, the blowing assembly 40 can also be set as other structures such as a blower or a centrifugal fan that drive the outside air into the heat preservation cover 20, and the embodiments of the present invention do not make specific limitations here.

[0043] In other embodiments, the bracket 41 can also be disposed on the heat preservation cover 20. Or the bracket 41 is disposed on the heat preservation cover 20 or the housing 11 at the same time, as long as it is ensured that the bracket 41 can be stably fixed at the corresponding position.

[0044] As Figures 2 to 3 shown, the blowing assembly 40 further includes a duct 43 having a wind guiding channel 431. One end of the duct 43 is connected to the outlet of the fan 42, and the other end of the duct 43 is connected to the air outlet 21 of the heat preservation cover 20 to communicate the outlet of the fan 42 and the air outlet 21 through the wind guiding channel 431. The duct 43 can play a role in guiding the wind blown by the blowing assembly 40, so that the wind flowing out of the outlet of the fan 42 can flow into the heat preservation cover 20 through the wind guiding channel 431 of the duct 43 and the air outlet 21, improving the gas utilization rate.

[0045] Specifically, along the flow direction of the wind in the wind guiding channel 431, the inner diameter of the wind guiding channel 431 can gradually decrease to increase the flow rate of the wind flowing into the heat preservation cover 20 and further improve the heating efficiency. Of course, the inner diameter of the wind guiding channel 431 can also gradually increase or remain unchanged along the flow direction of the wind in the wind guiding channel 431, and the embodiments of the present invention do not make specific limitations here.

[0046] As Figures 2 to 4 shown, along the flow direction of the wind passing through the air outlet 21, the cooking appliance further includes a wind guiding structure 50. The wind guiding structure 50 is disposed on the heat preservation cover 20 or the heating assembly 12. In other embodiments, the wind guiding structure 50 can also be disposed on the heat preservation cover 20 and the heating assembly 12 at the same time. The wind guiding structure 50 can play a role in guiding the wind in the heat preservation cover 20, so that the wind at the bottom of the heat preservation cover 20 can flow evenly upward along the outer periphery of the inner container 30, further ensuring that the inner container 30 is heated evenly and improving the heating efficiency.

[0047] As Figure 2 and Figure 4As shown, in one embodiment, the air guiding structure 50 includes a plurality of air guiding ribs 51, which are arranged at intervals along the circumferential direction of the heat preservation cover 20 or the air outlet 21. The plurality of air guiding ribs 51 enable the hot air in the heat preservation cover 20 to flow along the extending direction of the air guiding ribs 51 and be evenly distributed on the outer periphery of the inner container 30.

[0048] Specifically, the air guiding ribs 51 can be spiral and are arranged at the junction of the bottom wall of the heat preservation cover 20 and the side wall of the heat preservation cover 20. Refer to Figure 4 As shown, that is, looking at the heat preservation cover 20 from top to bottom, the air guiding ribs 51 extend spirally to the right from the bottom wall of the heat preservation cover 20 to the side wall of the heat preservation cover 20. In this way, the air flowing through the air guiding ribs 51 can gradually flow upward spirally along the circumferential direction of the inner container 30, ensuring that the hot air outside the inner container 30 is circumferentially uniform and overall flows upward.

[0049] In other embodiments, the air guiding ribs 51 can also be left-handed spirals, and the air guiding ribs 51 can also be an integral spiral structure; of course, the air guiding structure 50 can also include a flow guiding structure arranged at other positions such as the bottom wall of the heat preservation cover 20, the side wall of the heat preservation cover 20, the bottom wall of the heating component 12, or the outer side wall of the heating component 12, as long as it can play a role in guiding the hot air in the heat preservation cover 20, so that the hot air can be evenly distributed on the outer periphery of the inner container 30 and flow upward. The embodiments of the present utility model do not make specific limitations here.

[0050] Such as Figure 1 As shown, the cooking appliance can be an electric slow cooker, a stewing pot, etc., which heat the inner container 30 through the heating component 12 in the heating base 10.

[0051] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as these combinations of technical features do not conflict, they should be considered as within the scope described in this specification.

[0052] The above-described embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A cooking utensil, characterized in that: include: A heating base (10) comprises an outer shell (11), a heat preservation cover (20) disposed in the outer shell (11), and a heating component (12) at least partially disposed in the heat preservation cover (20), wherein the outer shell (11) is provided with an air inlet (111) communicating with the outside, and the bottom wall of the heat preservation cover (20) is provided with an air outlet (21); An inner liner (30) is disposed in the heat-insulating cover (20) and is capable of contacting the heating component (12), and a ventilation gap is provided between the side wall of the inner liner (30) and the side wall of the heat-insulating cover (20); and The blowing assembly (40) is located between the bottom wall of the heat-insulating cover (20) and the bottom wall of the outer shell (11); the inlet of the blowing assembly (40) is connected to the air inlet (111); and the outlet of the blowing assembly (40) is connected to the ventilation gap through the air outlet (21).

2. The cooking device according to claim 1, characterized in that: The air outlet (21) on the heat-insulating cover (20) is at least partially located below the heating component (12).

3. The cooking device according to claim 1, characterized in that: The air inlet (111) is opened on the bottom wall of the housing (11).

4. The cooking device according to claim 1, characterized in that: The blowing assembly (40) comprises a bracket (41) and a fan (42) arranged on the bracket (41); the bracket (41) is arranged on the housing (11) and / or the heat-insulating cover (20); the inlet of the fan (42) is connected to the air inlet (111); and the outlet of the fan (42) is connected to the air outlet (21).

5. The cooking device according to claim 4, characterized in that: The blowing assembly (40) further comprises an air guide pipe (43) having an air guide channel (431), one end of the air guide pipe (43) being connected to the outlet of the fan (42), and the other end of the air guide pipe (43) being connected to the air outlet (21) of the heat preservation cover (20), so that the outlet of the fan (42) and the air outlet (21) are connected via the air guide channel (431).

6. The cooking device according to claim 1, characterized in that: Along the flow direction of the wind passing through the air outlet (21), the cooking appliance further comprises an air guide structure (50), wherein the air guide structure (50) is arranged on the heat preservation cover (20) and / or the heating component (12).

7. The cooking device according to claim 6, characterized in that: The air guiding structure (50) comprises a plurality of air guiding ribs (51), and the air guiding ribs (51) are arranged at intervals along the circumference of the heat-insulating cover (20) or the air outlet (21).

8. The cooking device according to claim 7, characterized in that: The air guiding rib (51) is spiral-shaped and is arranged at the junction of the bottom wall of the heat-insulating cover (20) and the side wall of the heat-insulating cover (20).

9. The cooking device according to claim 1, characterized in that: The inner container (30) is made of ceramic material.

10. The cooking device according to claim 1, characterized in that: The heating component (12) is arranged to be liftable relative to the bottom wall of the heat-insulating cover (20).

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