Cooking appliance
By using flexible, waterproof components and flame-retardant materials in cooking utensils, the problem of incompatibility between waterproof components and appearance design has been solved, resulting in cost reduction and improved waterproof performance, ensuring safety in complex environments.
Patent Information
- Application Number
- CN202423286015.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing waterproof components for cooking appliances are incompatible with complex or special designs, are costly, have unsatisfactory waterproofing effects, and are difficult to adapt to miniaturization requirements.
It employs flexible, easily deformable waterproof components, including fixing parts and water-blocking parts. By adjusting the shape to fit the appearance of the machine body, it uses gravity to guide the water flow. It is equipped with pre-bending structures and gaps to improve waterproof performance, and uses flame-retardant materials to prevent fire.
It achieves effective waterproofing for complex or special designs, reduces costs, extends the service life of waterproof components, and improves waterproofing effect and safety.
Smart Images
Figure CN223860561U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a household appliance, in particular to a cooking appliance. BACKGROUND
[0002] In the design of the existing cooking appliance, due to the limitation of the appearance structure, it is usually adopted to increase the covering area in the appearance design, to add the shaped parts inside, etc. to cover the electrified part, so as to achieve the purpose of waterproof protection. However, these means often increase the volume and production cost of the product, and when the appearance shape is small or the appearance structure is complex, the electrified part is difficult to effectively protect, and it is not compatible with the miniaturization and special shape of the appearance design.
[0003] Therefore, the problems brought by the waterproof part in the prior art are that the waterproof part is not compatible with the appearance shape of the product, and cannot adapt to the design requirements of complex or special appearance structure; the cost of the waterproof part is high, which increases the production cost of the product; the waterproof part lacks flexible deformation ability; it is difficult to fit in a complex environment, and the waterproof effect is not ideal; the waterproof part has low water guiding and draining efficiency, and there is a risk of water seepage. SUMMARY
[0004] In order to overcome the low adaptability of the waterproof part in the prior art, the present application provides a cooking appliance, which reduces the cost of the waterproof part and the space requirement during installation.
[0005] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a cooking appliance, comprising a body and a substrate support installed on the body, the substrate support having an installation cavity inside, a substrate being installed in the installation cavity, a side surface of the installation cavity being provided with an opening, the substrate support being connected with a flexible waterproof part which is easy to deform, the flexible waterproof part shielding one side of the substrate facing the opening.
[0006] After adopting the above technical scheme, the present application has the following advantages: by adopting the flexible waterproof part which is easy to deform, it can change its shape flexibly according to different appearance shapes of the body, positions of the substrate support and specific forms of the opening, etc., and can well fit the actual installation situation, effectively solving the problem that the existing flexible waterproof part is not compatible with the appearance shape of the product and is difficult to adapt to the design requirements of complex or special appearance structure. Whether it is a miniaturized cooking appliance appearance design or a product with a special shape, the flexible waterproof part can realize effective waterproof protection of the substrate.
[0007] Further, the flexible waterproof part comprises a fixed part and a water blocking part, the fixed part being connected to the top of the substrate support, the upper end of the water blocking part being connected to the fixed part, and the water blocking part shielding the opening.
[0008] The fixing part is installed on the top, which can make the water blocking part better guide the water flow downward by gravity, reduce the installation position and installation steps under the premise of ensuring the waterproofness of the soft waterproof part, and avoid space conflicts with various connecting lines, heat dissipation devices or other functional components arranged on the side or bottom of the cooking appliance.
[0009] Further, the lower edge of the water blocking part extends beyond the lower edge of the base plate support; and / or, the left and right edges of the water blocking part extend beyond the left and right edges of the base plate support.
[0010] The lower edge of the water blocking part extends beyond the lower edge of the base plate support, which can form effective shielding below the base plate support, and the left and right edges of the water blocking part extend beyond the left and right edges of the base plate support, which expands the protection in the horizontal direction, so that the entire soft waterproof part does not leave "dead angles" in all directions, and the extended water blocking part can disperse the impact force of the water flow in a larger range. When water contacts the water blocking part, the extended part can guide the water flow to gradually disperse and slide down, rather than concentrating on the edge of the base plate support, which can reduce the long-term erosion and damage of the water flow to the connection between the water blocking part and the base plate support and the key parts of the soft waterproof part, thereby helping to prolong the service life of the soft waterproof part and the entire soft waterproof part and ensuring long-term stable waterproof performance.
[0011] Further, the fixing part is connected to the top surface of the top of the base plate support, the rear side edge of the fixing part extends beyond the rear side edge of the base plate support; and / or, the left and right edges of the water blocking part extend beyond the left and right edges of the base plate support.
[0012] The fixing part is connected to the top surface of the top of the base plate support, which makes the fixing part intercept the water flow from a wider area above; the rear side edge of the fixing part extends beyond the rear side edge of the base plate support, which effectively blocks the water droplets from the rear, and the extended edges can disperse the impact force of the water flow in a larger range, avoiding the water flow from concentrating on the edge of the base plate support and other key parts. Moreover, for the water vapor erosion and water flow erosion that may occur in the kitchen environment with high humidity and water for a long time, the larger area of protection can reduce the accumulation and penetration of water in a local area, reduce the damage to the fixing part, the water blocking part and their connection parts with the base plate support, help to prolong the service life of the entire soft waterproof part and the soft waterproof part, and ensure long-term stable waterproof performance.
[0013] Further, the fixing part is connected to the top surface of the top of the base plate support, and the fixing part is inclinedly arranged front and back.
[0014] Adopting the preceding technical scheme, the fixed part is arranged obliquely front and back, which can ingeniously guide the flow direction of water flow by the angle of the oblique arrangement, and avoid water flow accumulation on the surface of the fixed part; in some special cases, such as when the surrounding of the position where the appliance is located has water flow fluctuation or is affected by external force to generate water backflow phenomenon, the oblique fixed part can use its angle advantage to let the water flow smoothly along the oblique direction, instead of backflowing to the key area that may affect waterproof, further guaranteeing the waterproof effect, and making the soft waterproof part more reliable in complex and changeable use environment.
[0015] Further, the fixed part is connected to the bottom surface of the top of the substrate support.
[0016] Adopting the preceding technical scheme, inside the cooking appliance, there are often some other components (such as air vents, operation buttons, etc.) that need to be arranged in space, and connecting the fixed part to the bottom surface of the top can avoid the conflict in space with these components, reserve more sufficient space for other functional components, and the fixed part on the bottom surface of the top can still effectively intercept the water droplets falling from above or the small amount of water flow that may flow down along the surface of the appliance.
[0017] Further, the connecting position of the fixed part and the water blocking part is provided with a pre-bending structure.
[0018] Adopting the preceding technical scheme, when the water blocking part is bent due to extrusion of corresponding parts or other external force, if there is no pre-bending structure, stress concentration phenomenon is easy to occur at the connecting position, which may cause tearing, damage, etc. of the part after long-term accumulation, affecting the normal use of the soft waterproof part, therefore, the pre-bending structure can increase the adaptability of the soft waterproof part to space and reduce the requirements for the installation environment.
[0019] Further, a gap is provided between the left and right side walls of the substrate support and the water blocking part.
[0020] Adopting the preceding technical scheme, during the use of the cooking appliance, due to temperature change, the substrate support and the soft waterproof part (especially the water blocking part) may have thermal expansion and contraction phenomenon. The reserved gap can provide sufficient expansion space for them when the size changes, and secondly, when the cooking appliance is working, the substrate will generate heat. The existence of the gap allows external cold air to enter the area near the substrate support, and also allows the heat of the substrate to flow out from the gap, improving the heat dissipation efficiency and operation stability of the substrate.
[0021] Further, the lower side wall of the substrate support is provided with a through hole for passing the electric wire.
[0022] The through hole is arranged on the lower side wall of the substrate support, so that the electric wire can orderly enter and exit the substrate support from below, avoiding the problem of space disorder caused by the random arrangement of the electric wire on the other side or the top of the substrate support. Compared with the electric wire passing through the opening on the side or the top of the substrate support, the through hole position of the lower side wall is lower, so that water droplets and the like are less likely to flow into the interior of the substrate support along the electric wire, thereby improving the reliability of the entire waterproof system.
[0023] Further, the soft waterproof member is made of a flame-retardant waterproof material; or, a flame-retardant layer made of a flame-retardant waterproof material is arranged on the side of the soft waterproof member facing the substrate.
[0024] With the foregoing technical solution, during use of the cooking appliance, an open flame or a high-temperature environment may be generated due to electrical failure, high-temperature cooking, etc. The soft waterproof member is made of a flame-retardant waterproof material, or a flame-retardant layer is arranged on the side of the soft waterproof member facing the substrate, which can effectively prevent the spread of the flame. When encountering a fire source, the flame-retardant material will not easily burn, thereby avoiding the fire from spreading to the entire appliance, reducing the risk of property loss and safety accidents caused by the fire, and protecting the safety of the user's life and property and the safety of the kitchen environment. BRIEF DESCRIPTION OF DRAWINGS
[0025] The application will be further described below with reference to the drawings:
[0026] Figure 1 FIG. 1 is a three-dimensional schematic view of a substrate support of a cooking appliance according to the application;
[0027] Figure 2 FIG. 2 is a side view of the substrate support of the cooking appliance according to the application;
[0028] Figure 3 FIG. 3 is a three-dimensional schematic view of a cooking appliance according to the application;
[0029] Figure 4 FIG. 4 is a sectional view of the cooking appliance according to the application.
[0030] BRIEF DESCRIPTION OF DRAWINGS: 1, body; 2, substrate support; 21, mounting cavity; 22, substrate; 23, opening; 24, through hole; 3, soft waterproof member; 31, fixed part; 32, water blocking part; 33, pre-bent structure. DETAILED DESCRIPTION
[0031] To make the objectives, technical solutions, and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described below in connection with the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments.
[0032] The terms "first," "second," etc. (if present) in the specification and claims of this application are used to distinguish similar objects, not to describe a specific order or sequence. Even if "second" is used before a technical feature for distinction, it does not necessarily imply the presence of "first." It should be understood that in this application, "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. It should be understood that in this application, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, and Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Containing X, Y, and Z," "Containing X, Y, and Z" means that all three X, Y, and Z are included; "Containing X, Y, or Z" means that one of X, Y, and Z is included; "Containing X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are included.
[0033] The technical solutions of this application will be described in detail below with specific embodiments. The following specific embodiments can be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.
[0034] Example 1:
[0035] like Figures 1 to 4 As shown, this application provides a cooking appliance, including a body 1, a cover and a base plate support 2 mounted on the side of the body 1. The base plate support 2 has a mounting cavity 21, and a base plate 22 is mounted in the mounting cavity 21. The side of the mounting cavity 21 is provided with an opening 23 to facilitate the installation of the base plate 22. The base plate support 2 is connected to a flexible waterproof component 3 that is easily deformable. The flexible waterproof component 3 covers the side of the base plate 22 facing the opening 23.
[0036] After adopting the above technical solution, this application has the following advantages: by using a flexible waterproof component 3 that is easy to deform, it can flexibly change its shape according to different body 1 appearance shapes, the location of the substrate support 2, the specific shape of the opening 23, etc., and fit the actual installation situation well. It effectively solves the problem that the existing flexible waterproof component 3 is incompatible with the product appearance shape and is difficult to adapt to complex appearance structure or special design requirements. Whether it is a miniaturized cooking appliance appearance design or a product with a special shape, the flexible waterproof component 3 can be used to achieve effective waterproof protection for the substrate 22.
[0037] Specifically, the material of the soft waterproof part 3 is rubber, silica gel or thin steel sheet, etc. which can produce certain deformation and does not affect the waterproofness, can adapt to different installation positions, even if being pressed by other parts to a certain extent, it can not be damaged, achieve the effect of waterproof, and the air requirement of the installation position is lower.
[0038] Further, the soft waterproof part 3 includes a fixed part 31 and a water blocking part 32, the fixed part 31 is connected to the top of the base plate support 2, and the upper end of the water blocking part 32 is connected to the fixed part 31, and the water blocking part 32 blocks the opening 23.
[0039] By adopting the foregoing technical solution, the fixed part 31 is installed at the top, which can make the water blocking part 32 better guide the water flow downward by gravity, reduce the installation position and installation steps under the premise of ensuring the waterproofness of the soft waterproof part 3, and the fixed part 31 of the soft waterproof part 3 is installed at the top, which can avoid the space conflict with these components on the side or bottom of the cooking utensil.
[0040] Specifically, the fixed part 31 can be fixed with the base plate support 2 by means of adhesive bonding, mechanical fixing, structural buckle, etc. In addition, in order to facilitate installation and maintenance, the flexible waterproof cover and the fixing device can be connected in a detachable manner. For example, the flexible waterproof cover and the fixing device can be connected by screws, which is convenient for disassembly and replacement.
[0041] Further, the lower edge of the water blocking part 32 extends beyond the lower edge of the base plate support 2.
[0042] Further, the left and right edges of the water blocking part 32 extend beyond the left and right edges of the base plate support 2.
[0043] By adopting the foregoing technical solution, the lower edge of the water blocking part 32 extends beyond the lower edge of the base plate support 2, which can form effective shielding below the base plate support 2, and the left and right edges of the water blocking part 32 extend beyond the left and right edges of the base plate support 2, which is an expansion protection in the horizontal direction, so that the entire soft waterproof part 3 does not leave "dead angle" in each direction, and the extended water blocking part 32 can disperse the impact force of the water flow in a larger range. When the water contacts the water blocking part 32, the extended part can guide the water flow to gradually disperse and slide down, rather than concentrating on the edge of the base plate support 2, which can reduce the long-term erosion and damage of the water flow to the connection between the water blocking part 32 and the base plate support 2 and the key parts of the soft waterproof part 3, thereby helping to prolong the service life of the soft waterproof part 3 and the entire soft waterproof part 3, and ensuring long-term stable waterproof performance.
[0044] Further, the fixing part 31 is connected to the top surface of the top of the substrate support 2, and the rear side edge of the fixing part 31 extends beyond the rear side edge of the substrate support 2.
[0045] By the foregoing technical solution, the fixing part 31 is connected to the top surface of the top of the substrate support 2, and such a positional relationship enables the fixing part 31 to intercept water flow from a wider area above; the rear side edge of the fixing part 31 extends beyond the rear side edge of the substrate support 2, effectively blocking water droplets from the rear, and the extended edges can disperse the impact force of the water flow in a larger range, avoiding the water flow from concentrating on the edges of the substrate support 2 and other key parts. Moreover, for water vapor erosion and water flow scouring that may occur in a kitchen environment that is humid and has a lot of water for a long time, a larger area of protection can reduce the accumulation and penetration of water in a local area, reducing damage to the fixing part 31, the water blocking part 32, and their connection parts with the substrate support 2, helping to prolong the service life of the entire soft waterproof part 3 and the soft waterproof part 3, and ensuring long-term stable waterproof effect. Directly installing on the top surface of the top of the substrate support 2 makes the installation process of the soft waterproof part 3 convenient and saves installation time.
[0046] It can be understood that the water blocking part 32 can only extend the left and right edges beyond the left and right edges of the substrate support 2, or extend the lower edge beyond the lower edge of the substrate support 2, or extend the rear side edge beyond the rear side edge of the substrate support 2.
[0047] Specifically, the rear side edge of the fixing part 31 is as shown at B in Figure 1 , and the rear side edge of the substrate support 2 is as shown at A in Figure 1 .
[0048] Further, the fixing part 31 is connected to the top surface of the top of the substrate support 2, and the fixing part 31 is inclined front and back, and the specific form can be high in front and low in back or low in front and high in back.
[0049] By the foregoing technical solution, the fixing part 31 is inclined front and back, which can cleverly guide the flow direction of the water flow by using the angle of inclination, avoiding the accumulation of water flow on the surface of the fixing part 31; in some special cases, such as when the surrounding position of the appliance has water flow fluctuations or is affected by external forces to produce water backflow, the inclined fixing part 31 can use its angle advantage to smoothly discharge the water flow in the inclined direction, rather than backflowing to the key area that may affect waterproofing, further ensuring the waterproof effect and making the soft waterproof part 3 more reliable in complex and variable use environments.
[0050] It can be understood that in another embodiment, the fixing part 31 can also be inclined left and right.
[0051] Further, gaps are arranged between the left and right side walls of the substrate support 2 and the water blocking part 32.
[0052] With the foregoing technical solution, during use of the cooking appliance, the substrate support 2 and the soft waterproof member 3 (especially the water blocking part 32) can expand and contract due to temperature changes. The gaps provide sufficient expansion space for them when the size changes. In addition, during operation of the cooking appliance, the substrate 22 generates heat. The presence of the gaps allows external cold air to enter the area near the substrate support 2 and allows the heat of the substrate 22 to flow out from the gaps, improving the heat dissipation efficiency and operational stability of the substrate 22.
[0053] Further, the lower side wall of the substrate support 2 is provided with a through hole 24 for passing the electric wire.
[0054] With the foregoing technical solution, the through hole 24 is arranged on the lower side wall of the substrate support 2, so that the electric wire can orderly enter and exit the substrate support 2 from below, avoiding the problem of space disorder caused by random arrangement of the electric wire on other side surfaces or the top of the substrate support 2. Compared with passing the electric wire through the opening 23 on the side or top of the substrate support 2, the through hole 24 on the lower side wall is lower in position, so that water droplets and the like are less likely to flow into the interior of the substrate support 2 along the electric wire, improving the reliability of the entire waterproof system.
[0055] Further, the soft waterproof member 3 is made of a flame-retardant waterproof material.
[0056] Further, the side of the soft waterproof member 3 facing the substrate 22 is provided with a flame-retardant layer made of a flame-retardant waterproof material, for example, using water-based fireproof paint.
[0057] With the foregoing technical solution, during use of the cooking appliance, an open flame or high-temperature environment can be generated due to electrical failure, high-temperature cooking, etc. The soft waterproof member 3 is made of a flame-retardant waterproof material, or the side of the soft waterproof member 3 facing the substrate 22 is provided with a flame-retardant layer, which can effectively prevent the spread of flames. When encountering a fire source, the flame-retardant material will not easily burn, thereby avoiding the spread of the fire to the entire appliance, reducing the risk of property loss and safety accidents caused by fire, and protecting the safety of the user's life and property and the safety of the kitchen environment.
[0058] Specifically, the flame-retardant waterproof material of the soft waterproof member 3 can be some materials that can achieve flame retardation and waterproof properties, such as neoprene, silicone rubber, polyvinyl chloride (PVC), flame-retardant polystyrene, expanded perlite, rock wool, etc.
[0059] The cooking utensil comprises a body 1, a cover, and a base plate support 2 installed on the side of the body 1, wherein the base plate support 2 is internally provided with an installation cavity 21, the base plate 22 is installed in the installation cavity 21, the side of the installation cavity 21 is provided with an opening 23 for facilitating the installation of the base plate 22, the lower side wall of the base plate support 2 is provided with a through hole 24 for passing electric wires, the base plate support 2 is connected with a soft waterproof member 3 which is easy to deform, the soft waterproof member 3 shields the side of the base plate 22 which faces the opening 23, the soft waterproof member 3 comprises a fixed part 31 and a water blocking part 32, the lower edge of the water blocking part 32 extends beyond the lower edge of the base plate support 2, the fixed part 31 is connected to the top surface of the top part of the base plate support 2, the fixed part 31 is obliquely arranged from front to back, and the specific form can be that the front is higher than the back or the front is lower than the back, and the rear side edge of the fixed part 31 extends beyond the rear side edge of the base plate support 2, the upper end of the water blocking part 32 is connected to the fixed part 31, the water blocking part 32 shields the opening 23, and a gap is arranged between the left and right side walls of the base plate support 2 and the water blocking part 32.
[0060] It can be understood that, in order to improve the waterproof performance, the edge of the flexible waterproof cover can be provided with a waterproof sealing ring. The waterproof sealing ring can form a seal with the electrified part to prevent water from penetrating from the gap. In addition, sealing glue can be coated between the flexible waterproof cover and the electrified part to further improve the sealing performance.
[0061] Embodiment 2:
[0062] The difference between the embodiment 1 and the embodiment 2 is that the fixed part 31 does not wrap the top part of the base plate support 2, but the fixed part 31 is connected to the bottom surface of the top part of the base plate support 2.
[0063] By adopting the foregoing technical scheme, in the cooking utensil, there are usually some other components (such as air vents, operation buttons, etc.) which need to be arranged on the top, the fixed part 31 is connected to the bottom surface of the top, so as to avoid the conflict in space with these components, to reserve more sufficient space for other functional components, and the fixed part 31 can still effectively intercept the water droplets falling from above or the small amount of water flowing along the surface of the utensil.
[0064] Embodiment 3:
[0065] The difference between the embodiment 1 and the embodiment 3 is that the fixed part 31 and the water blocking part 32 can not be soft materials, but the connection position of the fixed part 31 and the water blocking part 32 is provided with a pre-bending structure 33, so as to make the soft waterproof member 3 realize the function of being easy to deform, and also ensure a certain rigidity to realize the application in specific working conditions.
[0066] With the foregoing technical solutions, when the water blocking part 32 is bent due to extrusion of corresponding parts or other external forces, if there is no pre-bending structure 33, stress concentration is prone to occur at the connection position, and long-term accumulation may cause tearing, damage, etc. at the position, affecting the normal use of the soft waterproof part 3. Therefore, the pre-bending structure 33 can increase the adaptability of the soft waterproof part 3 to the space and reduce the requirements on the installation environment.
[0067] Embodiment 4:
[0068] The difference from Embodiment 1 is that the material of the soft waterproof part 3 is a hard material, but through the manufacturing process of the material, it becomes a soft part that is easy to deform, such as a weaving process, a 3D printing process, etc. The hard material itself can form the characteristic of being easy to deform, and the structural strength is improved, and the application of being easy to deform is convenient.
[0069] Embodiment 5: The difference from Embodiment 1 is that the soft waterproof part can adopt a film of a high polymer compound, and the soft waterproof part wraps the substrate to achieve the waterproof effect of the substrate.
[0070] In addition to the preferred embodiments described above, the present application also has other embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
Claims
1. A cooking appliance, comprising a body and a base plate support mounted on the body, the base plate support having a mounting cavity in which a base plate is mounted, characterized in that, The mounting cavity has an opening on its side, and the substrate support is connected to a flexible waterproof component that is easily deformable. The flexible waterproof component covers the side of the substrate facing the opening.
2. A cooking utensil according to claim 1, characterized in that, The flexible waterproof component includes a fixing part and a water-blocking part. The fixing part is connected to the top of the substrate support, and the upper end of the water-blocking part is connected to the fixing part. The water-blocking part covers the opening.
3. A cooking utensil according to claim 2, characterized in that, The lower edge of the water-blocking portion extends beyond the lower edge of the substrate support; and / or, the left and right edges of the water-blocking portion extend beyond the left and right edges of the substrate support.
4. A cooking utensil according to claim 2, characterized in that, The fixing part is connected to the top surface of the substrate support, and the rear edge of the fixing part extends beyond the rear edge of the substrate support; and / or, the left and right edges of the water-blocking part extend beyond the left and right edges of the substrate support.
5. A cooking utensil according to claim 2, characterized in that, The fixing part is connected to the top surface of the substrate support, and the fixing part is inclined back and forth.
6. A cooking utensil according to claim 2, characterized in that, The fixing part is connected to the bottom surface of the top of the substrate support.
7. A cooking utensil according to claim 2, characterized in that, The connection between the fixing part and the water-blocking part is provided with a pre-bending structure.
8. A cooking utensil according to claim 2, characterized in that, There is a gap between the left and right side walls of the substrate support and the water-blocking part.
9. A cooking utensil according to claim 1, characterized in that, The lower side wall of the substrate support is provided with a through hole for threading wires.
10. A cooking utensil according to claim 1, characterized in that, The flexible waterproof component is made of flame-retardant and waterproof material; or, the flexible waterproof component has a flame-retardant layer made of flame-retardant and waterproof material on the side facing the substrate.