Modularized heat-conducting fin with magnetic fixing edgings

By setting magnetic fixing strips and modular splicing structure on the heat-conducting sheet, and utilizing magnetic attraction and sliding connection design, the inconvenience of frequent maintenance or replacement of the heat-conducting sheet is solved, achieving convenient and efficient installation and expansion of the heat area, and improving the working efficiency and service life of the device.

CN224054641UActive Publication Date: 2026-03-27SHENZHEN LIFAN SILICONE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing heat-conducting plates are inconvenient to install when frequently maintained or replaced, which reduces the working efficiency of the device.

Method used

It adopts magnetic fixing strips and modular splicing structure, uses magnetic attraction to realize automatic positioning and fixing of heat conduction sheet, realizes tool-free splicing through sliding connection design, and achieves tight connection by combining magnetic double locking mechanism.

Benefits of technology

It improves the efficiency of installing and removing heat-conducting plates, enhances the convenience and reliability of the device, expands the convenience of heat conduction area, and extends the service life of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heat-conducting fins, in particular to a modularized heat-conducting fin with magnetic fixing edgings, which comprises a heat-conducting fin body, and the side surface of the heat-conducting fin body is fixedly provided with a first magnetic edging for fixing the heat-conducting fin body on the surface of a metal radiator or a heating element through magnetic attraction. The modularized heat-conducting fin body is made of a high-heat-conductivity material, the first magnetic edgings are fixedly installed on the edge of the heat-conducting fin body, during installation, the side, where the first magnetic edgings are fixedly installed, of the heat-conducting fin body is directly attracted to the surface of a metal radiator, and the first magnetic edgings generate strong magnetic attraction force; the heat-conducting fin body is in close physical contact with the metal surface, the magnetic force provides continuous pressure at the same time, automatic positioning and fixing are achieved through the magnetic force of the first magnetic edge strips, separation can be achieved only by applying proper tension during disassembly, and the working efficiency of the device is effectively improved.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of heat-conducting sheets, in particular to a modular heat-conducting sheet with a magnetic fixing edge strip. BACKGROUND

[0002] The heat-conducting sheet is a high-efficiency thermal interface material used in the fields of electronic equipment and industrial machinery, and is mainly used for transferring heat between a heat-generating element and a heat sink to reduce the temperature of the equipment.

[0003] For the existing heat-conducting sheet, when being installed in a heat dissipation device, it is generally fixed in the device by means of screws, buckles or adhesion, and is located between the heat sink and the heat-generating element, with one side of the heat-conducting sheet being attached to the surface of the heat-generating element.

[0004] However, when used in scenarios requiring frequent maintenance or replacement, the use of screws, buckles or adhesion is not convenient, which reduces the working efficiency of the device.

[0005] Therefore, a modular heat-conducting sheet with a magnetic fixing edge strip is proposed. CONTENT OF THE UTILITY MODEL

[0006] In view of the deficiencies of the prior art, the application aims to provide a modular heat-conducting sheet with a magnetic fixing edge strip, which solves the problem of inconvenience and reduced working efficiency of the device when used in scenarios requiring frequent maintenance or replacement.

[0007] The above-mentioned purpose of the application is achieved by the following technical scheme: a modular heat-conducting sheet with a magnetic fixing edge strip, comprising a heat-conducting sheet body, a first magnetic edge strip fixedly installed on the side surface of the heat-conducting sheet body for fixing the heat-conducting sheet body on the surface of a metal heat sink or a heat-generating element through magnetic attraction.

[0008] Further, the first magnetic edge strip is arranged along at least one side edge of the heat-conducting sheet body.

[0009] Further, the side edge of the heat-conducting sheet body is fixedly installed with a modular splicing structure for splicing and combining with other heat-conducting sheet bodies of the same type.

[0010] Further, the modular splicing structure comprises a fixed block and a sliding groove body, the fixed block being fixedly installed on one side of the heat-conducting sheet body, and the sliding groove body being fixedly installed on the side of the heat-conducting sheet body away from the fixed block.

[0011] Further, a second magnetic edge strip is fixedly installed on the side of the fixed block away from the heat-conducting sheet body, and a third magnetic edge strip is fixedly installed on the groove bottom of the sliding groove body, the magnetic pole directions of the second magnetic edge strip and the third magnetic edge strip being opposite.

[0012] Further, the first magnetic edge strip, the second magnetic edge strip and the third magnetic edge strip are made of high-temperature-resistant magnetic material.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. The modular heat-conducting fin body is made of high-heat-conducting material, and the first magnetic edge strip is fixedly installed at the edge of the heat-conducting fin body. When installing, the side of the heat-conducting fin body with the first magnetic edge strip fixedly installed is directly adsorbed on the surface of the metal heat sink. The first magnetic edge strip generates strong magnetic attraction force, so that the heat-conducting fin body forms close physical contact with the metal surface. The magnetic force simultaneously provides continuous pressure. Automatic positioning and fixing are realized by the magnetic force of the first magnetic edge strip. When disassembling, the device can be separated by applying appropriate pulling force, thereby effectively improving the working efficiency of the device.

[0015] 2. When it is necessary to expand the heating area of the heat-conducting fin body, the fixed block of one heat-conducting fin body can be slidably embedded into the sliding groove body of another heat-conducting fin body by aligning the fixed block of one heat-conducting fin body with the sliding groove body of another heat-conducting fin body when the two heat-conducting fin bodies of the same type are spliced. The sliding and embedding type connection design enables the splicing process to be completed without any tool assistance, and the reliable connection of the two heat-conducting fin bodies can be achieved by single-person operation. The heat-conducting fin body combination after splicing forms a seamless heat-conduction interface. In this way, multiple heat-conducting fin bodies can be spliced to expand the heat-conducting area, thereby effectively improving the convenience of the device.

[0016] 3. When splicing multiple heat-conducting fin bodies, the fixed block is precisely slid along the guide inclined surface of the sliding groove body and finally fastened and connected through the mechanical plus magnetic double locking mechanism. The fixed block is embedded in the sliding groove body. Because the magnetic pole directions of the second magnetic edge strip and the third magnetic edge strip are opposite, the second magnetic edge strip and the third magnetic edge strip attract and adsorb each other, so that the fixed block is embedded in the sliding groove body more tightly, thereby effectively improving the convenience of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure in the embodiment;

[0018] Figure 2 is a bottom view in the embodiment;

[0019] Figure 3 is a separation diagram of two heat-conducting fin bodies.

[0020] Reference signs: 1, heat-conducting fin body; 2, first magnetic edge strip; 3, second magnetic edge strip; 4, third magnetic edge strip; 5, modular splicing structure; 51, fixed block; 52, sliding groove body. DETAILED DESCRIPTION

[0021] The application will be further described in detail below with reference to the accompanying drawings.

[0022] Embodiment, refer to Figures 1-3 A modular heat-conducting sheet with a magnetic fixing edge strip comprises a heat-conducting sheet body 1, and a first magnetic edge strip 2 is fixedly installed on the side surface of the heat-conducting sheet body 1 and used for fixing the heat-conducting sheet body 1 on the surface of a metal heat sink or a heat-generating element through magnetic attraction. The modular heat-conducting sheet body 1 is made of a high-heat-conducting material, and the first magnetic edge strip 2 is fixedly installed on the edge of the heat-conducting sheet body 1. When the heat-conducting sheet body 1 is installed, the side of the heat-conducting sheet body 1 on which the first magnetic edge strip 2 is fixedly installed is directly adsorbed on the surface of the metal heat sink. The first magnetic edge strip 2 generates a strong magnetic attraction force, so that the heat-conducting sheet body 1 forms a close physical contact with the metal surface. The magnetic force simultaneously provides a continuous pressure. The automatic positioning and fixing are realized by the magnetic force of the first magnetic edge strip 2. When the heat-conducting sheet body 1 is disassembled, it can be separated only by exerting a proper pulling force, thereby effectively improving the working efficiency of the device.

[0023] Refer to Figure 2 The first magnetic edge strip 2 is arranged along at least one side edge of the heat-conducting sheet body 1. When the heat-conducting sheet body 1 is assembled, because the first magnetic edge strip 2 is fixedly installed on multiple sides of the heat-conducting sheet body 1, the heat-conducting sheet body 1 can be adsorbed on the surface of the metal heat sink on multiple sides, thereby effectively improving the convenience of the device.

[0024] Refer to Figure 1 A modular splicing structure 5 for splicing and combining with other heat-conducting sheet bodies 1 of the same type is fixedly installed on the side edge of the heat-conducting sheet body 1. When it is necessary to expand the heat-receiving area of the heat-conducting sheet body 1, multiple heat-conducting sheet bodies 1 can be quickly spliced and combined through the modular splicing structure 5. In specific implementation, only the splicing structures (such as mortise-tenon joints or magnetic edge strips) of adjacent heat-conducting sheet bodies 1 are aligned with each other and pressed together, and the expansion assembly can be completed within a few seconds, thereby effectively improving the convenience of the device.

[0025] Refer to Figure 1 The modular splicing structure 5 comprises a fixing block 51 and a sliding groove body 52. The fixing block 51 is fixedly installed on one side of the heat-conducting sheet body 1, and the sliding groove body 52 is fixedly installed on the side of the heat-conducting sheet body 1 away from the fixing block 51. When it is necessary to expand the heat-receiving area of the heat-conducting sheet body 1, the fixing block 51 of one heat-conducting sheet body 1 can be aligned with the sliding groove body 52 of another heat-conducting sheet body 1. When two heat-conducting sheet bodies 1 are spliced, the fixing block 51 of one heat-conducting sheet body 1 can be slidably embedded in the sliding groove body 52 of the other heat-conducting sheet body 1, so as to realize the splicing of the two heat-conducting sheet bodies 1. This sliding-embedding type connection design makes the splicing process not need any tool assistance, and the reliable connection of two heat-conducting sheet bodies 1 can be completed by a single person. The spliced heat-conducting sheet body 1 combination forms a seamless heat-conducting interface. In this way, multiple heat-conducting sheet bodies 1 can be spliced to expand the heat-conducting area, thereby effectively improving the convenience of the device.

[0026] Referring to Figures 1-3 , the second magnetic edge 3 is fixedly installed on the side of the fixing block 51 away from the heat conduction sheet body 1, the third magnetic edge 4 is fixedly installed on the groove bottom of the sliding groove body 52, and the magnetic pole directions of the second magnetic edge 3 and the third magnetic edge 4 are opposite. When multiple heat conduction sheet bodies 1 are spliced, the fixing block 51 is accurately slid along the guide inclined surface of the sliding groove body 52, and finally fastening connection is realized through mechanical plus magnetic double locking mechanism. The fixing block 51 is embedded in the sliding groove body 52. Because the magnetic pole directions of the second magnetic edge 3 and the third magnetic edge 4 are opposite, the second magnetic edge 3 and the third magnetic edge 4 attract and adsorb each other, so that the fixing block 51 is embedded in the sliding groove body 52 more tightly, and the convenience of the device is effectively improved.

[0027] Referring to Figure 1 and Figure 2 , the first magnetic edge 2, the second magnetic edge 3 and the third magnetic edge 4 adopt high-temperature-resistant magnetic materials. When the heat conduction sheet body 1 is installed into the heat dissipation device, the heating elements in the heat dissipation device will emit a large amount of heat. By adopting high-temperature-resistant magnetic materials for the first magnetic edge 2, the second magnetic edge 3 and the third magnetic edge 4, the problem of magnetic failure of the first magnetic edge 2, the second magnetic edge 3 and the third magnetic edge 4 caused by excessively high temperature is prevented, and the service life of the device is effectively improved.

[0028] Working principle:

[0029] 1. When the heat conduction sheet body 1 needs to be installed, the side of the heat conduction sheet body 1 on which the first magnetic edge 2 is fixedly installed is directly adsorbed on the surface of the metal radiator. The first magnetic edge 2 generates strong magnetic attraction force, so that the heat conduction sheet body 1 forms close physical contact with the metal surface. The magnetic force simultaneously provides continuous pressure. Automatic positioning and fixing are realized by relying on the magnetic force of the first magnetic edge 2. When disassembling, the device can be separated by applying appropriate pulling force, and the working efficiency of the device is effectively improved.

[0030] 2. When multiple heat conduction sheet bodies 1 are spliced, the fixing block 51 of one heat conduction sheet body 1 is aligned with the sliding groove body 52 of another heat conduction sheet body 1. When two heat conduction sheet bodies 1 of the same type are spliced, the second magnetic edge 3 and the third magnetic edge 4 attract and adsorb each other. The fixing block 51 of one of the heat conduction sheet bodies 1 is slidably embedded in the sliding groove body 52 of the other heat conduction sheet body 1. In this way, multiple heat conduction sheet bodies 1 can be spliced, and the convenience of the device is effectively improved.

[0031] The embodiments of the specific implementation mode are the preferred embodiments of the application, and do not limit the protection scope of the application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A modular heat-conducting sheet with magnetic fixing strips, characterized in that: It includes a heat-conducting sheet body (1), and a first magnetic strip (2) is fixedly installed on the side of the heat-conducting sheet body (1) for fixing the heat-conducting sheet body (1) to the surface of a metal heat sink or a heating element by magnetic attraction.

2. The modular heat-conducting sheet with magnetic fixing strip according to claim 1, characterized in that: The first magnetic strip (2) is disposed along at least one edge of the heat-conducting sheet body (1).

3. A modular heat-conducting sheet with magnetic fixing strips according to claim 1, characterized in that: The side of the heat-conducting sheet body (1) is fixedly equipped with a modular splicing structure (5) for splicing and combining with other heat-conducting sheet bodies (1) of the same type.

4. A modular heat-conducting sheet with magnetic fixing strips according to claim 3, characterized in that: The modular splicing structure (5) includes a fixing block (51) and a sliding groove (52). The fixing block (51) is fixedly installed on one side of the heat-conducting sheet body (1), and the sliding groove (52) is fixedly installed on the side of the heat-conducting sheet body (1) away from the fixing block (51).

5. A modular heat-conducting sheet with magnetic fixing strips according to claim 4, characterized in that: The fixing block (51) is fixedly installed with a second magnetic strip (3) on the side away from the heat-conducting plate body (1), and a third magnetic strip (4) is fixedly installed at the bottom of the groove body (52). The magnetic poles of the second magnetic strip (3) and the third magnetic strip (4) are opposite.

6. A modular heat-conducting sheet with magnetic fixing strips according to claim 5, characterized in that: The first magnetic strip (2), the second magnetic strip (3) and the third magnetic strip (4) are made of high-temperature resistant magnetic material.