Novel heat conduction interface structure
By using a combined structure of intermediate aluminum foil layer, micro-convex strips and thermal coating in the thermal interface material, the problems of existing materials being thin and large in thermal resistance are solved, and efficient thermal conductivity and mechanical strength are improved.
Patent Information
- Application Number
- CN202421033508.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The existing thermal interface materials have the defects of being thin and having large thermal resistance, which is difficult to meet the needs of efficient thermal conductivity and mechanical strength.
An intermediate aluminum foil layer is used as the thermal conductivity material, and a micro-protruding strip and thermal coating are provided on both sides to form a new thermally conductive interface structure.
The efficient thermal conductivity and mechanical strength of the thermal interface material are achieved, the thickness can be made very thin, and has high thermal conductivity and structural strength.
Smart Images
Figure CN222647883U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat conduction interface structure and the related technical field, specifically a novel heat conduction interface structure. Background Art
[0002] Thermal interface materials are used to reduce or eliminate the gap between two solid surfaces, thereby reducing the thermal resistance of the interface and making the heat transfer channel smoother. Commonly used interface materials include: thermal conductive silicone, thermal conductive grease, silicone gasket, thermal conductive double-sided tape, etc. These materials have their application limitations. Or they may not be made thin enough and have defects such as high thermal resistance. Utility Model Content
[0003] In order to solve the defects of the prior art that the film cannot be made thin and the thermal resistance is relatively large, the utility model provides a novel heat-conducting interface structure.
[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0005] The utility model discloses a novel heat-conducting interface structure, comprising a middle aluminum foil layer, and both side surfaces of the middle aluminum foil layer are provided with a plurality of micro convex strips protruding inwards and outwards, and both sides of the middle aluminum foil layer are coated with heat-conducting coatings.
[0006] As a preferred technical solution of the present utility model, the thickness of the middle aluminum foil layer is 0.2 to 0.3 mm.
[0007] As a preferred technical solution of the utility model, the micro-convex strips are limit strips which are alternately arranged horizontally and vertically and have a T-shaped cross section.
[0008] As a preferred technical solution of the utility model, the middle aluminum foil layer is made of corroded aluminum foil.
[0009] As a preferred technical solution of the utility model, the height of the micro-convex strips is 0.02 mm.
[0010] As a preferred technical solution of the present utility model, the thermal conductive coating is a silicone coating.
[0011] As a preferred technical solution of the present utility model, the thermal conductive coating is a flexible material.
[0012] The beneficial effects of the utility model are:
[0013] The middle aluminum foil layer in this novel thermal conductive interface structure is not only a high thermal conductive material, but also provides sufficient mechanical strength for the interface material; the thermal conductive coatings on both sides have a certain ductility and can effectively fill the surface gaps of the contact material when squeezed; compared with the silicone gasket, the thickness of the utility model can be made very thin and the structural strength is relatively high; and it also has a higher thermal conductive effect. The surfaces of both sides of the middle aluminum foil layer are provided with a number of micro-convex strips protruding inward and outward, so that the surface of the middle aluminum foil layer is rough, which increases the adhesion of the thermal conductive coating material. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0015] Figure 1 It is a structural schematic diagram of a novel heat-conducting interface structure of the utility model;
[0016] Figure 2 It is a structural schematic diagram of a middle aluminum foil of a novel heat-conducting interface structure of the utility model.
[0017] In the figure: 1. Middle aluminum foil layer; 2. Micro convex strips; 3. Thermal conductive coating. DETAILED DESCRIPTION
[0018] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0019] Example: Figure 1 and Figure 2 As shown, the utility model is a novel heat-conducting interface structure, including an intermediate aluminum foil layer 1, and the surfaces of both sides of the intermediate aluminum foil layer 1 are provided with a plurality of micro-convex strips 2 protruding inward and outward, and the two sides of the intermediate aluminum foil layer 1 are coated with a thermal conductive coating 3. The intermediate aluminum foil layer 1 in the utility model is not only a high thermal conductive material, but also provides sufficient mechanical strength for the interface material; the thermal conductive coating 3 on both sides has a certain ductility, and can effectively fill the surface gap of the contact material when squeezed; compared with the silicone gasket, the thickness of the utility model can be made very thin, and the structural strength is relatively high; and it also has a higher thermal conductivity effect, and the surfaces of both sides of the intermediate aluminum foil layer 1 are provided with a plurality of micro-convex strips 2 protruding inward and outward, so that the surface of the intermediate aluminum foil layer 1 is rough, and the adhesion of the thermal conductive coating 3 material is increased.
[0020] The thickness of the middle aluminum foil layer 1 is 0.2 to 0.3 mm, so that the overall thickness is relatively thin, and the thermal resistance of the gasket material only needs to consider the thickness of the coating on both sides. The middle aluminum foil layer 1 is made of corroded aluminum foil.
[0021] The micro-convex strips 2 are limit strips which are alternately arranged horizontally and vertically and have a T-shaped cross section. The micro-convex strips 2 are alternately arranged horizontally and vertically to increase the adhesion of the thermal conductive coating 3 material.
[0022] The height of the micro convex strips 2 is 0.02 mm. The thermal conductive coating 3 is a silicone coating, which is a flexible material with a certain degree of ductility and can effectively fill the gaps on the surface of the contact material when squeezed.
[0023] When working, the middle aluminum foil layer 1 of this novel thermal conductive interface structure is not only a high thermal conductive material, but also provides sufficient mechanical strength for the interface material; the thermal conductive coating 3 on both sides has a certain ductility, and can effectively fill the surface gaps of the contact material when squeezed; compared with the silicone gasket, the thickness of the utility model can be made very thin, and the structural strength is relatively high; and it also has a higher thermal conductive effect. The surfaces of both sides of the middle aluminum foil layer 1 are provided with a plurality of micro-convex strips 2 protruding inward and outward, so that the surface of the middle aluminum foil layer 1 is rough, thereby increasing the adhesion of the thermal conductive coating 3 material.
[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A novel thermal conductive interface structure, characterized in that: It comprises an intermediate aluminum foil layer (1), and both side surfaces of the intermediate aluminum foil layer (1) are provided with a plurality of micro convex strips (2) protruding inwards and outwards, and both sides of the intermediate aluminum foil layer (1) are coated with a thermal conductive coating (3).
2. A novel thermal conductive interface structure according to claim 1, characterized in that: The thickness of the middle aluminum foil layer (1) is 0.2 to 0.3 mm.
3. A novel thermal conductive interface structure according to claim 1, characterized in that: The micro-convex strips (2) are limit strips which are alternately arranged horizontally and vertically and have a T-shaped cross section.
4. A novel thermal conductive interface structure according to claim 2, characterized in that: The middle aluminum foil layer (1) is made of corroded aluminum foil.
5. The novel thermal conductive interface structure according to claim 1, characterized in that: The height of the micro convex strip (2) is 0.02 mm.
6. A novel thermal conductive interface structure according to claim 1, characterized in that: The thermal conductive coating (3) is a silicone coating.
7. The novel thermal conductive interface structure according to claim 1, characterized in that: The thermal conductive coating (3) is made of flexible material.