Heat conduction structure of vegetable warming board

By using a design where the heat-conducting sheet directly contacts the heating wire on the food warmer, the problem of low thermal conductivity of silicone is solved, achieving efficient heating and energy saving, improving user experience and extending the lifespan of the heating wire.

CN223787513UActive Publication Date: 2026-01-13SHAOXING HAODA ELECTRICAL APPLIANCE
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Patent Information

Application Number
CN202520299893.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-01-13
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing flexible food warmers are made primarily of silicone, which has low thermal conductivity, resulting in low heat transfer efficiency and making it impossible to achieve efficient heating and energy saving.

Method used

The structure adopts a direct contact structure between the heating wire and the heat-conducting plate. The heat-conducting plate is made of metal, and the winding groove is designed with a specific shape to ensure close contact between the heat-conducting plate and the heating wire. It is fixed with glue, and the heat-conducting plate and the main body of the heating plate are set on the same plane to ensure flatness.

Benefits of technology

It improves heat conduction efficiency, can withstand higher temperatures, enhances user experience, reduces heat loss, achieves energy saving, and extends the service life of the heating wire. The surface of the warming board is flat and easy to use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223787513U_ABST
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Abstract

The utility model discloses a heat conduction structure of a vegetable warming board, which belongs to the field of vegetable warming boards, and comprises a heating board main body, the heating wire is arranged in the wire winding groove; the heat conducting sheet is fixed on the upper side surface of the heating plate main body, the heating wire is in contact with the heat conducting sheet, the heating plate main body is made of silica gel, and the heat conducting sheet is made of metal. Due to the fact that the heat-conducting fins directly make contact with the heating wires, heat conduction efficiency is high, the heat-conducting fins can bear higher temperature, the heating temperature of the whole vegetable warming board can be increased, user experience is improved, due to the fact that the heat-conducting fins conduct heat, heat efficiency is high, heat loss is small, compared with a conventional silica gel vegetable warming board, power can be small, and energy is saved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of food warming boards, specifically relating to a heat-conducting structure for food warming boards. Background Technology

[0002] Existing flexible food warmers use silicone as the main body, with heating wires contacting and fixing them to the silicone body. The heat from the heating wires is transferred to the silicone panel to warm the food.

[0003] Silicone is a poor conductor of heat and has low thermal conductivity. Utility Model Content

[0004] The purpose of this invention is to provide a heat-conducting structure for a food warmer that can increase heat conduction efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-conducting structure for a food warmer, comprising:

[0006] The heating plate body has a winding groove on its upper side.

[0007] A heating wire, wherein the heating wire is installed in the winding groove;

[0008] A heat-conducting sheet is fixed to the upper side of the heating plate body, and the heating wire is in contact with the heat-conducting sheet.

[0009] Furthermore, the material of the heating plate body is silicone.

[0010] Furthermore, the heat-conducting sheet material is set to metal.

[0011] Furthermore, the winding groove includes:

[0012] The first wire group slot includes a plurality of first vertical portions arranged parallel to each other and a first connecting portion connecting adjacent first vertical portions. The first wire group slot includes a first connecting end and a first output end.

[0013] The second wire group slot includes a plurality of parallel second vertical portions and a second connecting portion connecting adjacent second vertical portions. The second vertical portions are parallel to the first vertical portions. The second wire group slot includes a second connecting end and a second output end, and the first connecting end is connected to the second connecting end.

[0014] The heating wire corresponds to the shape of the winding groove, the first vertical portion and the second vertical portion are perpendicular to the curling direction of the heating plate body, and a plurality of heat-conducting sheets are arranged sequentially along the curling direction of the heating plate body.

[0015] Furthermore, the heat-conducting sheet has a flange around its perimeter, and the upper side of the heating plate body has a glue groove corresponding to the flange. The flange is inserted into the glue groove, and the flange is fixed in the glue groove with glue.

[0016] Furthermore, the upper side of the heating plate body is provided with a groove corresponding to the heat-conducting sheet, the heat-conducting sheet is inserted into the groove, and the upper side of the heat-conducting sheet and the upper side of the heating plate body are on the same plane.

[0017] Furthermore, several support feet are fixed to the lower side of the heating plate body.

[0018] Furthermore, the lower side of the heating plate body is provided with several wire passage grooves that communicate with the winding groove.

[0019] Furthermore, the opening of the first connecting portion near the second line slot is provided with a first limiting portion.

[0020] Furthermore, a second limiting part is provided at the opening of the second connecting part near the first line slot.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] (1) Since the heat-conducting sheet is in direct contact with the heating wire, the heat conduction efficiency is high and the heat-conducting sheet can withstand higher temperatures. The heating temperature of the entire food warmer can be increased, improving the user experience. Furthermore, since the heat is transferred by the heat-conducting sheet, its thermal efficiency is high and the heat loss is small. Compared with conventional silicone food warmers, the power can be reduced, achieving energy saving.

[0023] (2) Since the first vertical part and the second vertical part are perpendicular to the curling direction A of the heating plate body, the first vertical part and the second vertical part will not be curled during the curling process of the heating plate body, thus avoiding the curling of a large length of heating wire, improving the service life of the heating wire, and making it easier to achieve the curling operation, thereby improving the user experience.

[0024] (3) The upper side of the heat-conducting sheet is on the same plane as the upper side of the heating plate body, which makes the upper side of the heating plate flatter and easier for users to use.

[0025] (4) Apply glue to the wire groove after winding to better fix the heating wire. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the heat-conducting structure of the food warmer plate of this utility model;

[0027] Figure 2 for Figure 1 A magnified view of a section at point I;

[0028] Figure 3 for Figure 1 Another structural diagram from another angle;

[0029] Figure 4 An exploded view of the heating plate body, heating wires, and heat-conducting plates;

[0030] Figure 5 for Figure 4 Enlarged view of a section at point II;

[0031] Figure 6 An enlarged cross-sectional view of the heating plate body, heating wires, and heat-conducting plates connected together;

[0032] Figure 7 This is a schematic diagram of the structure when the main body of the heating plate is rolled up.

[0033] In the diagram: 1. Heating plate body; 2. Heating wire; 3. Winding groove; 31. First wire group groove; 311. First vertical part; 312. First connecting part; 313. First connecting end; 314. First output end; 32. Second wire group groove; 321. Second vertical part; 322. Second connecting part; 323. Second connecting end; 324. Second output end; 4. Heat-conducting plate; 5. Flanged edge; 6. Glue groove; 7. Groove; 8. Support foot; 9. Wire passage groove; 10. First limiting part; 11. Second limiting part; 12. Control box. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figures 1-7 This utility model provides a heat-conducting structure technical solution for a food warmer.

[0036] A heat-conducting structure for a food warmer includes:

[0037] Heating plate body 1, the upper side of heating plate body 1 is provided with a winding groove 3;

[0038] Heating wire 2 is installed inside the winding groove 3;

[0039] Heat-conducting sheet 4 is fixed on the upper side of the heating plate body 1, and heating wire 2 is in contact with heat-conducting sheet 4.

[0040] Because the heat-conducting sheet 4 is in direct contact with the heating wire 2, it has high thermal conductivity and can withstand higher temperatures, allowing the entire food warmer to reach higher heating temperatures and improving the user experience. Furthermore, due to the heat transfer method using the heat-conducting sheet 4, its thermal efficiency is high and heat loss is low, allowing for lower power consumption compared to conventional silicone food warmers, thus achieving energy savings.

[0041] Furthermore, the heating plate body 1 is made of silicone, and the heat-conducting sheet 4 is made of metal.

[0042] like Figures 4-7 As shown, the winding groove 3 includes:

[0043] The first wire group groove 31 includes a plurality of first vertical portions 311 arranged in parallel with each other and a first connecting portion 312 connecting adjacent first vertical portions 311. The first wire group groove 31 includes a first connecting end 313 and a first output end 314. The length of the first vertical portion 311 is greater than that of the first connecting portion 312.

[0044] The second wire group groove 32 includes a plurality of parallel second vertical portions 321 and second connecting portions 322 connecting adjacent second vertical portions 321. The second vertical portions 321 are parallel to the first vertical portions 311. The second wire group groove 32 includes a second connecting end 323 and a second output end 324. The first connecting end 313 is connected to the second connecting end 323. The length of the second vertical portion 321 is greater than that of the second connecting portion 322.

[0045] The heating wire 2 corresponds to the shape of the winding groove 3. The first vertical part 311 and the second vertical part 321 are perpendicular to the curling direction of the heating plate body 1. A number of heat-conducting sheets 4 are arranged sequentially along the curling direction of the heating plate body 1.

[0046] Since the first vertical portion 311 and the second vertical portion 321 are perpendicular to the curling direction A of the heating plate body 1, the first vertical portion 311 and the second vertical portion 321 will not be curled during the curling process of the heating plate body 1, thus avoiding the curling of a large length of heating wire, improving the service life of the heating wire 2, and making it easier to achieve the curling operation, thereby improving the user experience.

[0047] like Figure 6 As shown below, the following is a method of fixing the heat-conducting sheet 4. The heat-conducting sheet 4 is provided with a flange 5 around its perimeter. The upper side of the heating plate body 1 is provided with a glue groove 6 corresponding to the flange 5. The flange 5 is inserted into the glue groove 6 and fixed in the glue groove 6 with glue.

[0048] like Figure 6As shown, the upper side of the heating plate body 1 is provided with a groove 7 corresponding to the heat-conducting sheet 4. The heat-conducting sheet 4 is inserted into the groove 7. The upper side of the heat-conducting sheet 4 and the upper side of the heating plate body 1 are on the same plane, which makes the upper side of the heating plate flatter.

[0049] like Figure 6 As shown, several support feet 8 are fixed on the lower side of the heating plate body 1, and the support feet 8 can support the heating plate body 1.

[0050] like Figure 2 and Figure 4 As shown, the lower side of the heating plate body 1 is provided with several wire passage grooves 9 that are connected to the winding groove 3. After the wire is wound, glue is applied to the wire passage grooves 9 to better fix the heating wire 2.

[0051] like Figure 5 As shown, a first limiting part 10 is provided at the opening of the first connecting part 312 near the second wire group groove 32, and a second limiting part 11 is provided at the opening of the second connecting part 322 near the first wire group groove 31. The heating wire 2 passes through the lower side of the first limiting part 10 and the second limiting part 11, and the first limiting part 10 and the second limiting part 11 can play a limiting role.

[0052] like Figure 3 and Figure 7 As shown, several heat-conducting plates 4 are arranged sequentially along the curling direction of the heating plate body 1. The distance A between two adjacent heat-conducting plates 4 is 5 ≤ ​​A ≤ 20 mm.

[0053] A control box 12 is also fixed on the heating plate body 1, and the two ends of the heating wire 2 are connected to the control box 12.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat-conducting structure for a food warmer, characterized in that, include: The heating plate body has a winding groove on its upper side. A heating wire, wherein the heating wire is installed in the winding groove; A heat-conducting sheet is fixed to the upper side of the heating plate body, and the heating wire is in contact with the heat-conducting sheet.

2. The heat-conducting structure of a food warmer according to claim 1, characterized in that, The heating plate body is made of silicone.

3. The heat-conducting structure of a food warmer according to claim 1, characterized in that, The heat-conducting sheet is made of metal.

4. The heat-conducting structure of a food warmer according to claim 1, characterized in that, The winding groove includes: The first wire group slot includes a plurality of first vertical portions arranged parallel to each other and a first connecting portion connecting adjacent first vertical portions. The first wire group slot includes a first connecting end and a first output end. The second wire group slot includes a plurality of parallel second vertical portions and a second connecting portion connecting adjacent second vertical portions. The second vertical portions are parallel to the first vertical portions. The second wire group slot includes a second connecting end and a second output end, and the first connecting end is connected to the second connecting end. The heating wire corresponds to the shape of the winding groove, the first vertical portion and the second vertical portion are perpendicular to the curling direction of the heating plate body, and a plurality of heat-conducting sheets are arranged sequentially along the curling direction of the heating plate body.

5. The heat-conducting structure of a food warmer according to claim 1, characterized in that, The heat-conducting sheet has a flange around its perimeter, and the upper side of the heating plate body has a glue groove corresponding to the flange. The flange is inserted into the glue groove and fixed in the glue groove with glue.

6. The heat-conducting structure of a food warmer according to claim 1, characterized in that, The upper side of the heating plate body is provided with a groove corresponding to the heat-conducting sheet. The heat-conducting sheet is inserted into the groove, and the upper side of the heat-conducting sheet and the upper side of the heating plate body are on the same plane.

7. The heat-conducting structure of a food warmer according to claim 1, characterized in that, Several support feet are fixed to the lower side of the heating plate body.

8. The heat-conducting structure of a food warmer according to claim 1, characterized in that, The lower side of the heating plate body is provided with several wire passage grooves that communicate with the winding groove.

9. The heat-conducting structure of a food warmer according to claim 4, characterized in that, A first limiting part is provided at the opening of the first connecting part near the second line group groove.

10. The heat-conducting structure of a food warmer according to claim 4, characterized in that, A second limiting part is provided at the opening of the second connecting part near the first line group groove.