Cooking appliance and cooking apparatus
By adding an aluminum plate to the outside of the stainless steel pot bottom and forming a concave-convex structure, the problems of complex structure and low heat transfer efficiency of existing cooking utensils are solved, achieving efficient heating and easy cleaning, and improving the user experience.
Patent Information
- Application Number
- CN202521658030.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-05
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-05
AI Technical Summary
Existing cooking appliances have complex structures, low heat transfer efficiency, and are not easy to clean.
The stainless steel pot bottom is covered with an aluminum plate. The roughness of the lower surface of the aluminum plate is 0.1um-0.8um, forming a concave-convex structure. The aluminum plate is in close contact with the heating plate, which simplifies the structure and improves the heat conduction efficiency and friction.
It improves heat transfer efficiency, enhances the heating speed of the pot, ensures placement stability and easy cleaning, improves user experience, and reduces costs.
Smart Images

Figure CN224671252U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household appliance technology, specifically to a cooking utensil and cooking device. Background Technology
[0002] Cooking appliances such as woks include a pot body and a base located below the pot body for heating the pot body. In related technologies, the bottom of the pot body is usually covered with an aluminum sheet, and a stainless steel sheet is covered on the outside of the aluminum sheet. The stainless steel sheet is attached to the heating plate of the base to transfer the heat of the heating plate to the pot body. The above-mentioned cooking appliances have the problems of complex structure and low heat transfer efficiency. Utility Model Content
[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a cooking appliance and a cooking device, the cooking appliance having a simple structure and high heat transfer efficiency.
[0004] The cooking appliance of this utility model includes a pot body with a stainless steel bottom. The outer bottom surface of the stainless steel bottom is covered with an aluminum plate, and the lower surface of the aluminum plate is exposed. The roughness of the lower surface of the aluminum plate is 0.1um-0.8um.
[0005] The cooking appliance of this embodiment features a stainless steel pot bottom with an aluminum plate as the secondary layer. This simple structure facilitates operation, saves costs, and ensures rapid heating due to the high thermal conductivity of the aluminum plate, thus enhancing the user experience. Furthermore, compared to other stainless steel pot bottoms with both aluminum and stainless steel plates, this embodiment has lower requirements for the curvature of the secondary layer, eliminating the need for shaping and reducing labor costs. Additionally, the surface roughness of the aluminum plate is controlled between 0.1µm and 0.8µm, ensuring sufficient friction between the cooking appliance and the contact surface, guaranteeing stability and a relatively clean, shiny bottom for easy cleaning.
[0006] Optionally, the roughness of the lower surface of the aluminum plate is 0.1µm-0.4µm.
[0007] The cooking appliance of this utility model, while ensuring the friction between the cooking appliance and the contact surface to ensure the stability of the cooking appliance when placed, can further improve the gloss and cleanliness of the bottom of the cooking appliance by further limiting the upper limit of the roughness of the lower surface of the aluminum plate, making it easier to clean.
[0008] Optionally, the lower surface of the aluminum plate is provided with grooves, and ridges are formed between adjacent grooves.
[0009] The cooking appliance of this embodiment features a grooved lower surface of an aluminum plate, forming a concave-convex structure. The roughness of the convex lower surface is 0.1µm-0.8µm, which further increases the friction between the cooking appliance and the contact surface. Additionally, the concave-convex structure further increases the heat conduction efficiency of the cooking appliance, improving cooking efficiency. Moreover, it has a better appearance, is less prone to scratches, and any scratches are not noticeable.
[0010] Optionally, the raised pattern is an annular shape extending circumferentially along the aluminum plate, and there are multiple raised patterns, which are concentrically distributed and spaced apart on the lower surface of the aluminum plate.
[0011] The cooking appliance of this utility model has a more uniform bottom structure by forming multiple concentric raised patterns on the lower surface of the aluminum plate, which further increases the friction between the cooking appliance and the contact surface, improves the stability when placed, and further improves the heat conduction efficiency and appearance.
[0012] Optionally, the distance between adjacent ridges is 0.3mm-2mm, and the height of the ridges is 0.1mm-1mm.
[0013] The cooking appliance of this utility model, by limiting the distance between adjacent ridges and the height of the ridges, can further ensure the friction and heat conduction efficiency between the cooking appliance and the contact surface, while also improving the convenience of manufacturing and cleaning.
[0014] Optionally, the distance between adjacent ridges is 0.4mm-0.8mm, and the height of the ridges is 0.3mm-0.5mm.
[0015] The cooking appliance of this utility model, by further limiting the distance between adjacent ridges and the height of the ridges, can further ensure the friction and heat conduction efficiency between the cooking appliance and the contact surface, and can also be more convenient to manufacture and easier to clean.
[0016] Optionally, the thickness of the aluminum plate is 0.5mm-4mm.
[0017] The cooking appliance of this utility model, by limiting the thickness of the aluminum plate, has high structural strength, long service life, and ensures heat transfer efficiency while controlling material costs.
[0018] Optionally, the thickness of the aluminum plate is 1.5mm-2mm.
[0019] The cooking appliance of this utility model further improves the heat transfer efficiency and structural strength of the aluminum plate by further limiting the thickness of the aluminum plate, and also further saves costs and extends service life.
[0020] Optionally, the aluminum plate is welded onto the outer bottom surface of the pot bottom or heated and pressurized onto the outer bottom surface of the pot bottom.
[0021] The cooking appliance of this utility model has a simple and sturdy method of mounting the aluminum plate on the outer bottom surface of the pot.
[0022] The cooking apparatus of this utility model embodiment includes:
[0023] A base, on which a heating plate is provided;
[0024] The cooking appliance is any one of the cooking appliances described in the above embodiments, wherein the lower surface of the aluminum plate is in close contact with the heating plate.
[0025] In the cooking device of this utility model embodiment, the lower surface of the aluminum plate is in contact with the heating plate, and through the cooking appliance of any of the above embodiments, the friction between the aluminum plate and the heating plate can be guaranteed, so that the aluminum plate can quickly transfer the heat of the heating plate to the pot body, so that the pot body can reach a high temperature in a short time, improve the user experience, and the structure is simple, easy to operate, and cost-saving. Attached Figure Description
[0026] Figure 1 This is a cross-sectional view of the cooking apparatus according to an embodiment of the present invention.
[0027] Figure 2 This is an exploded view of the cooking apparatus according to an embodiment of the present invention.
[0028] Figure 3 yes Figure 1 An enlarged schematic diagram of part A in the middle.
[0029] Figure 4 This is a schematic diagram of the aluminum plate of the cooking appliance according to an embodiment of the present invention.
[0030] Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle.
[0031] Reference numerals: 100, cooking apparatus; 10, cooking utensil; 20, base; 1, pot body; 11, pot bottom; 2, aluminum plate; 21, groove; 22, raised texture; 3, heating plate. Detailed Implementation
[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0033] like Figures 1-5As shown, the cooking appliance 10 of this utility model embodiment includes a pot body 1, the pot body 1 has a stainless steel pot bottom 11, the outer bottom surface of the stainless steel pot bottom 11 is covered with an aluminum plate 2 and the lower surface of the aluminum plate 2 is exposed, and the roughness of the lower surface of the aluminum plate 2 is 0.1um-0.8um.
[0034] The cooking appliance 10 of this embodiment features a stainless steel pot bottom 11 with an aluminum plate 2 as the secondary bottom layer. This design is simple, easy to operate, and cost-effective. The aluminum plate 2 has high thermal conductivity, ensuring rapid heating of the pot body 1 and improving user experience. Furthermore, compared to designs where the stainless steel pot bottom 11 is a combination of aluminum and stainless steel plates, the cooking appliance 10 of this embodiment has lower requirements for the curvature of the secondary bottom layer, eliminating the need for shaping and saving labor costs. Additionally, the roughness of the lower surface of the aluminum plate 2 is controlled between 0.1µm and 0.8µm, ensuring sufficient friction between the cooking appliance 10 and the contact surface when placed, guaranteeing stability and a relatively clean and bright bottom for easy cleaning.
[0035] Specifically, when the roughness of the lower surface of the aluminum plate 2 is less than 0.1 μm, the lower surface of the aluminum plate 2 is relatively smooth, resulting in low friction between the aluminum plate 2 and the contact surface. This leads to poor stability of the cooking utensil 10 when placed on the contact surface and makes manufacturing difficult. When the roughness of the lower surface of the aluminum plate 2 is greater than 0.8 μm, the lower surface of the aluminum plate 2 is relatively rough, resulting in poor appearance and difficulty in cleaning. Therefore, in this embodiment of the invention, the roughness of the lower surface of the aluminum plate 2 of the cooking utensil 10 is controlled between 0.1 μm and 0.8 μm, which not only ensures the friction between the cooking utensil 10 and the contact surface but also facilitates manufacturing and cleaning.
[0036] Specifically, the stainless steel bottom 11 of the pot body 1 is only covered with an aluminum plate 2, without any stainless steel sheet. Compared with the prior art where a stainless steel sheet is covered on the outer surface of the aluminum plate 2, this saves material costs and greatly enhances the product's competitiveness. In some embodiments, the aluminum plate 2 can be shaped by turning to ensure a smooth fit between the aluminum plate 2 and the stainless steel bottom 11, making the outer surface of the aluminum plate 2 bright, clean, and aesthetically pleasing.
[0037] Optionally, the roughness of the lower surface of the aluminum plate 2 is 0.1um-0.4um.
[0038] Specifically, the roughness of the lower surface of the aluminum plate 2 is 0.1um-0.4um. While ensuring the friction between the cooking utensil 10 and the contact surface to guarantee the stability of the cooking utensil 10 when it is placed, by further limiting the upper limit of the roughness of the lower surface of the aluminum plate 2, the gloss and cleanliness of the bottom of the cooking utensil 10 can be further improved, making it easier to clean.
[0039] When the roughness of the lower surface of aluminum plate 2 is greater than 0.4um and less than or equal to 0.8mm, the friction between the cooking utensil 10 and the contact surface is relatively large when it is placed. Although the cooking utensil 10 is relatively stable when placed, it is not easy to clean and the user experience is relatively poor.
[0040] Optionally, such as Figure 4 and Figure 5 As shown, the lower surface of the aluminum plate 2 is provided with grooves 21, and raised patterns 22 are formed between adjacent grooves 21.
[0041] Specifically, a groove 21 is provided on the lower surface of the aluminum plate 2 to form a concave-convex structure, wherein the roughness of the lower surface of the raised texture 22 is 0.1um-0.8um, which can further increase the friction between the cooking utensil 10 and the contact surface. In addition, the concave-convex structure can further increase the heat conduction efficiency of the cooking utensil 10 and improve cooking efficiency. Moreover, it has a better appearance, is not easily scratched, and the scratches are not obvious.
[0042] Optionally, such as Figure 4 As shown, the raised pattern 22 is a circular ring extending along the circumference of the aluminum plate 2. There are multiple raised patterns 22, which are concentrically distributed and spaced apart on the lower surface of the aluminum plate 2.
[0043] Specifically, by forming multiple concentric raised patterns 22 on the lower surface of the aluminum plate 2, the bottom structure of the cooking utensil 10 is more uniform, which further increases the friction between the cooking utensil 10 and the contact surface, improves the stability when placed, and further improves the heat conduction efficiency and appearance.
[0044] Optionally, the distance between adjacent ridges 22 is 0.3mm-2mm, and the height of the ridges 22 is 0.1mm-1mm.
[0045] Specifically, by limiting the distance between adjacent ridges 22 and the height of the ridges 22, the friction and heat conduction efficiency between the cooking utensil 10 and the contact surface are further guaranteed, while the convenience of manufacturing and cleaning is improved.
[0046] When the distance between adjacent raised lines 22 is less than 0.3 mm, the arrangement of multiple raised lines 22 is denser, making it more difficult to clean. When the distance between adjacent raised lines 22 is greater than 2 mm, the arrangement of multiple raised lines 22 is more dispersed, which relatively reduces the friction on the lower surface of the aluminum plate 2 and relatively reduces the stability of the pot body 1 when placed on the contact surface.
[0047] When the height of the raised texture 22 is less than 0.1mm, it is difficult to manufacture and process. When the height of the raised texture 22 is greater than 1mm, it will reduce the heat transfer efficiency of the aluminum plate 2 and make it difficult to clean.
[0048] Optionally, the distance between adjacent ridges 22 is 0.4mm-0.8mm, and the height of the ridges 22 is 0.3mm-0.5mm.
[0049] Specifically, by further defining the distance between adjacent ridges 22 and the height of the ridges 22, it is possible to further ensure the friction and heat conduction efficiency between the cooking utensil 10 and the contact surface, while also making it easier to manufacture and clean.
[0050] When the distance between adjacent raised lines 22 is greater than or equal to 0.3 mm and less than 0.4 mm, the arrangement of the multiple raised lines 22 is relatively dense, making manufacturing relatively difficult. When the distance between adjacent raised lines 22 is greater than 0.8 mm and less than or equal to 2 mm, the arrangement of the multiple raised lines 22 is more dispersed, and the friction between the aluminum plate 2 and the contact surface is relatively small.
[0051] When the height of the raised texture 22 is greater than or equal to 0.1 mm and less than 0.3 mm, the height is relatively small, and the manufacturing difficulty is relatively high. When the height of the raised texture 22 is greater than 0.5 mm and less than or equal to 1 mm, the height is relatively high, which can easily affect the heat conduction efficiency and make cleaning relatively inconvenient.
[0052] Therefore, in this embodiment, the distance between adjacent ridges 22 and the height of the ridges 22 are further limited to further balance the friction between the cooking utensil 10 and the contact surface, the heat conduction efficiency, and the ease of manufacturing and cleaning.
[0053] Optionally, the thickness of aluminum plate 2 is 0.5mm-4mm.
[0054] Specifically, when the thickness of aluminum plate 2 is 0.5mm-4mm, aluminum plate 2 has high structural strength, long service life, and ensures heat transfer efficiency while controlling material costs.
[0055] When the thickness of aluminum plate 2 is less than 0.5mm, it is too thin and easily damaged by external forces. When the thickness of aluminum plate 2 is greater than 4mm, it is too thick, which reduces heat transfer efficiency and increases material costs.
[0056] Optionally, the thickness of aluminum plate 2 is 1.5mm-2mm.
[0057] Specifically, the thickness of the aluminum plate 2 is further limited, which further improves the heat transfer efficiency and structural strength of the aluminum plate 22, and further saves costs and extends service life.
[0058] When the thickness of aluminum plate 2 is greater than or equal to 0.5 mm and less than 1.5 mm, although aluminum plate 2 has high heat transfer efficiency and saves costs, its structural strength is relatively low and its service life is relatively short. When the thickness of aluminum plate 2 is greater than 2 mm and less than or equal to 4 mm, although aluminum plate 2 has high structural strength and a long service life, its relatively thick thickness results in relatively low heat transfer efficiency and relatively high cost.
[0059] Alternatively, the aluminum plate 2 can be welded onto the outer bottom surface of the pot bottom 11 or heated and pressurized onto the outer bottom surface of the pot bottom 11. The method of attaching the aluminum plate 2 onto the outer bottom surface of the pot bottom 11 is simple and secure.
[0060] like Figure 1 and Figure 2 As shown, the cooking device of this embodiment includes a base 20 and a cooking utensil 10. A heating plate 3 is provided on the base 20. The lower surface of the aluminum plate 2 of the cooking utensil 10 is in contact with the heating plate 3.
[0061] In this embodiment of the cooking device, the lower surface of the aluminum plate 2 is in contact with the heating plate 3. The friction between the aluminum plate 2 and the heating plate 3 is guaranteed, and the aluminum plate 2 can quickly transfer the heat of the heating plate 3 to the pot body 1, so that the pot body 1 can have a high temperature in a short time, which improves the user experience. Moreover, the structure is simple, easy to operate, and saves costs.
[0062] Specifically, the heating plate 3 is made of aluminum, and the aluminum plate 2 is in close contact with the heating plate 3, which has high heat conduction efficiency and ensures the cooking efficiency of the cooking appliance 10.
[0063] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0064] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0065] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0066] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0067] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0068] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.
Claims
1. A cooking utensil, characterized in that, The pot includes a pot body (1), which has a stainless steel pot bottom (11). The outer bottom surface of the stainless steel pot bottom (11) is covered with an aluminum plate (2) and the lower surface of the aluminum plate (2) is exposed. The roughness of the lower surface of the aluminum plate (2) is 0.1um-0.8um.
2. The cooking utensil according to claim 1, characterized in that, The roughness of the lower surface of the aluminum plate (2) is 0.1um-0.4um.
3. The cooking utensil according to claim 1, characterized in that, The lower surface of the aluminum plate (2) is provided with a groove (21), and a raised texture (22) is formed between adjacent grooves (21).
4. The cooking utensil according to claim 3, characterized in that, The raised pattern (22) is a ring extending circumferentially along the aluminum plate (2). There are multiple raised patterns (22), and the multiple raised patterns (22) are concentrically distributed and spaced apart on the lower surface of the aluminum plate (2).
5. The cooking utensil according to claim 4, characterized in that, The distance between adjacent ridges (22) is 0.3mm-2mm, and the height of the ridges (22) is 0.1mm-1mm.
6. The cooking utensil according to claim 5, characterized in that, The distance between adjacent ridges (22) is 0.4mm-0.8mm, and the height of the ridges (22) is 0.3mm-0.5mm.
7. The cooking utensil according to claim 1, characterized in that, The thickness of the aluminum plate (2) is 0.5mm-4mm.
8. The cooking utensil according to claim 7, characterized in that, The thickness of the aluminum plate (2) is 1.5mm-2mm.
9. The cooking utensil according to any one of claims 1-8, characterized in that, The aluminum plate (2) is welded onto the outer bottom surface of the pot bottom (11) or heated and pressurized onto the outer bottom surface of the pot bottom (11).
10. A cooking apparatus, characterized in that, include: A base (20) is provided with a heating plate (3); Cooking appliance (10), wherein the cooking appliance (10) is the cooking appliance (10) according to any one of claims 1-9, and the lower surface of the aluminum plate (2) is in contact with the heating plate (3).