Composite heat-conducting gasket
By setting up a buffer cavity and elastic sheet inside the thermal gasket and laying thermal materials on the surface, the problems of poor thermal conductivity and lack of buffer structure at high temperatures are solved, and better thermal conductivity and impact resistance are achieved , extend the service life.
Patent Information
- Application Number
- CN202421011231.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The existing thermal gaskets have poor thermal conductivity at high temperatures, which are prone to softening and creeping, and lack a buffer structure, resulting in reduced sealing pressure and damage to parts during external impact.
A thermal gasket with multiple buffer cavity is designed, with a built-in elastic sheet, and a composite layer of thermal silicone, thermal paste and copper-aluminum are laid on the surface and outer wall to increase heat dissipation holes to improve thermal conductivity and impact resistance.
Effectively buffer external impact, extend service life, improve thermal conductivity and heat dissipation effect, avoid deformation of the gasket to damage surrounding parts, and enhance high temperature stability.
Smart Images
Figure CN222263493U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of heat-conducting pads, in particular to a composite heat-conducting pad. Background Art
[0002] A composite thermal pad is a multi-layered thermal pad, usually composed of thermal conductive materials and other materials. This thermal pad combines the advantages of different materials to achieve better thermal conductivity and adaptability. In order to be used in situations where efficient heat conduction and heat dissipation are required, a composite thermal pad is needed.
[0003] During use, the existing thermally conductive gaskets have poor thermal conductivity. As the temperature rises, the gasket material softens, creeps, and undergoes stress relaxation, which reduces the sealing pressure and affects the life of the gasket. In addition, when the existing thermally conductive gaskets are in use, most of them do not have an effective buffer structure when subjected to external impact, which may cause damage to the components around the thermally conductive gasket. Therefore, technical improvements are urgently needed. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a composite thermally conductive gasket, which is provided with a gasket body, a plurality of small buffer cavities are opened inside the gasket body, and a plurality of elastic sheets are placed inside the buffer cavity, so that when the gasket body is hit by an external object, part of the impact force can be effectively buffered, thereby effectively avoiding the problem that the gasket body is deformed and other surrounding electronic parts are damaged when the gasket body is hit.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A composite heat-conducting gasket, comprising a gasket body, a plurality of buffer cavities are provided inside the gasket body, a plurality of elastic sheets are respectively provided on the inner bottom surfaces of the buffer cavities, a heat-conducting silica gel is provided on the upper surface and the lower surface of the gasket body, a heat-conducting paste is provided on the outer wall of the heat-conducting silica gel on the side away from the gasket body, a copper-aluminum composite layer is provided on the outer wall of the heat-conducting paste on the side away from the heat-conducting silica gel, and a heat-conducting coating is provided on the upper end of the copper-aluminum composite layer;
[0007] Through the above technical solution, the silicone thermal paste has good high temperature resistance, can maintain stable thermal conductivity in a high temperature environment, and is suitable for various working environments.
[0008] Furthermore, a plurality of heat dissipation holes are provided on the upper surface of the gasket body;
[0009] Through the above technical solution, a plurality of heat dissipation holes are opened on the upper surface of the gasket body, thereby effectively improving the heat dissipation effect of the thermally conductive gasket.
[0010] Furthermore, the elastic sheet is made of aluminum alloy, and the middle portion of the upper surface of the elastic sheet is fixedly connected to the inner bottom surface of the buffer cavity;
[0011] Through the above technical solution, the elastic sheet is made of aluminum alloy, and the middle part of the upper surface of the elastic sheet is fixedly connected to the inner bottom surface of the buffer cavity, thereby effectively improving the service life of the elastic sheet.
[0012] Furthermore, the outer wall of the elastic sheet is provided with elastic plastic, and the elastic plastic is made of polyvinyl chloride;
[0013] Through the above technical solution, the elastic plastic is made of polyvinyl chloride, so that the thermal conductive gasket has good elasticity and thermal conductivity.
[0014] Furthermore, the thermal conductive paste is silicone thermal conductive paste;
[0015] Through the above technical solution, the thermal conductive paste is silicone thermal conductive paste, so that the thermal conductive gasket has good thermal conductivity and insulation performance.
[0016] The utility model has the following beneficial effects:
[0017] 1. The utility model proposes a composite thermally conductive gasket. Compared with the existing thermally conductive gasket, the thermally conductive gasket has a gasket body, a plurality of small buffer cavities are opened inside the gasket body, and a plurality of elastic sheets are placed inside the buffer cavity. Therefore, when the gasket body is hit by an external object, part of the impact force can be effectively buffered, thereby effectively avoiding the problem that the gasket body is deformed and other surrounding electronic parts are damaged when the gasket body is hit.
[0018] 2. The utility model proposes a composite thermally conductive gasket. Compared with the existing thermally conductive gaskets, the thermally conductive gasket can effectively increase the thermal conductivity of the gasket body by setting up a gasket body, and by evenly applying thermally conductive silicone, thermally conductive paste, and a copper-aluminum composite layer in sequence on the outer wall of the gasket body, so that the thermally conductive gasket can better conduct and dissipate the heat of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is an axonometric diagram of a composite thermally conductive gasket proposed by the utility model;
[0020] Figure 2 A partial cross-sectional view of a composite thermally conductive gasket proposed by the utility model;
[0021] Figure 3This is a schematic diagram of the layers of a composite thermally conductive gasket proposed by the utility model;
[0022] Figure 4 The utility model is an axonometric diagram of an elastic sheet in a composite thermally conductive gasket.
[0023] Legend:
[0024] 1. Gasket body; 2. Heat dissipation holes; 3. Thermal conductive coating; 4. Buffer cavity; 5. Elastic sheet; 6. Thermal conductive silicone; 7. Thermal conductive paste; 8. Copper-aluminum composite layer; 9. Elastic plastic. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] Reference Figure 1-4 , an embodiment provided by the utility model:
[0027] A composite heat-conducting gasket comprises a gasket body 1, a plurality of buffer cavities 4 are provided inside the gasket body 1, a plurality of elastic sheets 5 are respectively provided on the inner bottom surfaces of the buffer cavities 4, a heat-conducting silica gel 6 is provided on the upper surface and the lower surface of the gasket body 1, a heat-conducting paste 7 is provided on the outer wall of the heat-conducting silica gel 6 away from the gasket body 1, a copper-aluminum composite layer 8 is provided on the outer wall of the heat-conducting paste 7 away from the heat-conducting silica gel 6, and a heat-conducting coating 3 is provided on the upper end of the upper copper-aluminum composite layer 8;
[0028] Silicone thermal paste has good high temperature resistance and can maintain stable thermal conductivity in high temperature environments, making it suitable for various working environments.
[0029] A plurality of heat dissipation holes 2 are provided on the upper surface of the gasket body 1. By providing a plurality of heat dissipation holes 2 on the upper surface of the gasket body 1, the heat dissipation effect of the thermally conductive gasket can be effectively improved. The elastic sheet 5 is made of aluminum alloy. The middle part of the upper surface of the elastic sheet 5 is fixedly connected to the inner bottom surface of the buffer cavity 4. By providing the elastic sheet 5 with aluminum alloy, the middle part of the upper surface of the elastic sheet 5 is fixedly connected to the inner bottom surface of the buffer cavity 4. The service life of the elastic sheet 5 can be effectively improved. The outer wall of the elastic sheet 5 is provided with elastic plastic 9. The elastic plastic 9 is made of polyvinyl chloride. By providing the elastic plastic 9 with polyvinyl chloride, the thermally conductive gasket has good elasticity and thermal conductivity. The thermal conductive paste 7 is silicone thermal conductive paste. By providing the thermal conductive paste 7 with silicone thermal conductive paste, the thermally conductive gasket has good thermal conductivity and insulation properties.
[0030] Working principle: When in use, the gasket body 1 is placed at the required position, and then in later use, a plurality of small buffer cavities 4 are opened inside the gasket body 1, and a plurality of elastic sheets 5 are placed inside the buffer cavity 4, so that when the gasket body 1 is hit by foreign objects, part of the impact force can be effectively buffered. At the same time, the thermal conductive silicone 6, thermal conductive paste 7, and copper-aluminum composite layer 8 are uniformly applied to the outer wall of the gasket body 1 in sequence, so as to effectively increase the thermal conductivity of the gasket body 1.
[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A composite thermally conductive gasket, comprising a gasket body (1), characterized in that: A plurality of buffer cavities (4) are provided inside the gasket body (1), and a plurality of elastic sheets (5) are respectively provided on the inner bottom surfaces of the buffer cavities (4). The upper surface and the lower surface of the gasket body (1) are provided with thermally conductive silicone rubber (6), and a thermally conductive paste (7) is provided on the outer wall of the thermally conductive silicone rubber (6) away from the gasket body (1). A copper-aluminum composite layer (8) is provided on the outer wall of the thermally conductive paste (7) away from the thermally conductive silicone rubber (6), and an elastic plastic (9) is provided on the upper end of the upper copper-aluminum composite layer (8).
2. The composite thermally conductive pad according to claim 1, characterized in that: The upper surface of the gasket body (1) is provided with a plurality of heat dissipation holes (2).
3. The composite thermally conductive pad according to claim 1, characterized in that: The elastic sheet (5) is made of aluminum alloy, and the middle portion of the upper surface of the elastic sheet (5) is fixedly connected to the inner bottom surface of the buffer cavity (4).
4. The composite thermally conductive pad according to claim 1, characterized in that: The outer wall of the elastic sheet (5) is provided with elastic plastic (9), and the elastic plastic (9) is made of polyvinyl chloride.
5. The composite thermally conductive pad according to claim 1, characterized in that: The thermal conductive paste (7) is silicone thermal conductive paste.