Heat-conducting gel sheet with flame retardant property

Abstract

The utility model discloses a heat-conducting gel sheet with flame retardant property, which relates to the technical field of gel sheets and comprises a gel sheet base layer, a heat-conducting auxiliary layer is compounded on one side of the gel sheet base layer, a bonding layer I and a bonding layer II are respectively arranged on the upper side and the lower side of the heat-conducting gel sheet, the first bonding layer and the second bonding layer can assist in bonding connection between the gel sheet and an element, so that the tightness of the gel sheet during installation is improved, falling of the gel sheet in the using process is reduced, flame-retardant coatings are arranged in the first flame-retardant protective layer and the second flame-retardant protective layer, the flame-retardant performance of the gel sheet can be achieved through the flame-retardant coatings, and the service life of the gel sheet is prolonged. The two sides of the built-in strip are connected with the connecting strip, and the connecting strip is connected with the extension block through the reinforcing strip, so that heat conduction between the gel sheet base layer and the two heat conduction auxiliary layers is assisted, the tensile effect of the heat conduction auxiliary layers is good, and the tensile fracture of the gel sheet in the using process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gel sheets, in particular to a heat-conducting gel sheet with flame-retardant performance. Background Art

[0002] A heat-conducting gel sheet is a sheet made of a highly plastic material, which can usually be made into different shapes according to actual needs. Since the heat-conducting gel sheet is soft and easy to deform, under the application of pressure, the heat-conducting gel sheet can closely fit between the heat source and the heat dissipation element.

[0003] In the prior art, as disclosed in Chinese Patent CN213798448U, a heat-conducting gel sheet with flame-retardant performance is provided, which includes a heat-conducting gel layer. A first flame-retardant layer is provided on the lower surface of the heat-conducting gel layer, a release film is provided on the other side of the first flame-retardant layer, and a heat dissipation layer is provided on the upper surface; the first flame-retardant layer is a flame retardant-acrylic resin composite coating; and the thickness of the first flame-retardant layer is 20-60 μm.

[0004] In the above patent, although the problem that the gel sheet does not have flame-retardant performance is solved by the first flame-retardant layer, a glue layer is not provided on the heat-conducting gel sheet. When the gel sheet is attached and installed with an electrical component, when the surface of the component is uneven and irregular, the tightness of the connection during the use of the gel sheet is insufficient, and it is easy to fall off, thus affecting the use effect of the gel sheet. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem in the prior art that when the surface of the component is uneven and irregular, the tightness of the connection during the use of the gel sheet is insufficient, and it is easy to fall off, thus affecting the use effect of the gel sheet, and to propose a heat-conducting gel sheet with flame-retardant performance.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a heat-conducting gel sheet with flame-retardant performance, which includes a gel sheet base layer. A heat-conducting auxiliary layer is compounded on one side of the gel sheet base layer, a first flame-retardant protection layer and a first bonding layer are compounded on one side of the heat-conducting auxiliary layer, a second flame-retardant protection layer and a second bonding layer are compounded on the other side of the gel sheet base layer. A protective member is fixedly connected to one side of the second bonding layer, and ventilation holes are provided on one side of the protective member.

[0007] Preferably, an embedded strip is embedded in the gel sheet base layer, and a connecting strip is fixedly connected to one side of the embedded strip.

[0008] Preferably, a reinforcing strip is fixedly connected to one side of the connecting strip, and an extending block is fixedly connected to one side of the reinforcing strip.

[0009] Preferably, one end of the extending block penetrates through the side wall of one side of the heat-conducting auxiliary layer.

[0010] Preferably, one side of the first adhesive layer is compounded with the first flame retardant protective layer, and the thickness of the first adhesive layer is less than that of the first flame retardant protective layer.

[0011] Preferably, one side of the second flame retardant protective layer is compounded with the second adhesive layer, and the thickness of the second flame retardant protective layer is the same as that of the second adhesive layer.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0013] 1. In the present utility model, the first adhesive layer and the second adhesive layer are respectively arranged on the upper and lower sides of the heat-conducting gel sheet. The first adhesive layer, the second adhesive layer and the protective member can assist in the pasting connection between the gel sheet and the component, thereby improving the tightness during the installation of the gel sheet, and further reducing the detachment and displacement of the gel sheet during use. Flame retardant coatings are provided inside both the first flame retardant protective layer and the second flame retardant protective layer, and the flame retardant performance of the gel sheet can be achieved by using the flame retardant coatings.

[0014] 2. In the present utility model, both sides of the built-in strip are connected to the connecting strip, and the connecting strip is connected to the extension block through the reinforcing strip, thereby assisting in the heat conduction between the gel sheet base layer and the two heat-conducting auxiliary layers, and further ensuring the heat conduction effect. The heat-conducting auxiliary layer can wrap the upper and lower sides of the gel sheet base layer, and the heat-conducting auxiliary layer has a good anti-tensile effect, thereby reducing the tensile fracture of the gel sheet during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of the protective member of a heat-conducting gel sheet with flame retardant performance proposed by the present utility model;

[0016] Figure 2 FIG. is a schematic installation diagram of the extension block structure of a heat-conducting gel sheet with flame retardant performance proposed by the present utility model;

[0017] Figure 3 FIG. is a schematic installation diagram of the connecting strip structure of a heat-conducting gel sheet with flame retardant performance proposed by the present utility model;

[0018] Figure 4 FIG. is a schematic installation diagram of the built-in strip structure of a heat-conducting gel sheet with flame retardant performance proposed by the present utility model.

[0019] Legend: 1. First adhesive layer; 2. First flame retardant protective layer; 3. Heat-conducting auxiliary layer; 4. Gel sheet base layer; 5. Second flame retardant protective layer; 6. Second adhesive layer; 7. Extension block; 8. Reinforcing strip; 9. Connecting strip; 10. Built-in strip; 11. Protective member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model in conjunction with the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0022] Embodiment 1

[0023] Refer to Figures 1-4 As shown: A heat-conducting gel sheet with flame-retardant properties includes a gel sheet base layer 4. On one side of the gel sheet base layer 4, a heat-conducting auxiliary layer 3 is compounded. On one side of the heat-conducting auxiliary layer 3, a first flame-retardant protective layer 2 and a first adhesive layer 1 are compounded. On the other side of the gel sheet base layer 4, a second flame-retardant protective layer 5 and a second adhesive layer 6 are compounded. On one side of the second adhesive layer 6, a protective member 11 is fixedly connected, and ventilation holes are provided on one side of the protective member 11.

[0024] One side of the first adhesive layer 1 is compounded with the first flame-retardant protective layer 2, and the thickness of the first adhesive layer 1 is less than that of the first flame-retardant protective layer 2.

[0025] One side of the second flame-retardant protective layer 5 is compounded with the second adhesive layer 6, and the thickness of the second flame-retardant protective layer 5 is the same as that of the second adhesive layer 6.

[0026] By using the first adhesive layer 1 and the second adhesive layer 6, the bonding strength on both sides of the gel sheet can be improved, so that the gel sheet is tightly connected to components with regular or irregular surfaces, reducing looseness, displacement, and falling off during the use of the gel sheet. The first flame-retardant protective layer 2 and the second flame-retardant protective layer 5 can provide double protection for the gel sheet, thereby improving the flame-retardant effect of the gel sheet and reducing the use damage of the gel sheet. The heat-conducting auxiliary layer 3 is arranged on both sides of the gel sheet base layer 4. The gel sheet base layer 4 can stably support the two heat-conducting auxiliary layers 3, reducing cracking and deformation during the use of the gel sheet and ensuring the service life of the gel sheet. The longitudinal section of the protective member 11 is L-shaped. One side inner wall thereof is connected to the second adhesive layer 6, and the other side inner wall is connected to the gel sheet, which can wrap and protect the side wall of the gel sheet. The bottom of the protective member 11 is relatively rough, which can reduce the sliding of the gel sheet after bottom installation.

[0027] Embodiment 2

[0028] As Figure 3 and Figure 4 shown, an internal strip 10 is embedded in the gel sheet base layer 4, and a connecting strip 9 is fixedly connected to one side of the internal strip 10.

[0029] One side of the connecting strip 9 is fixedly connected with a reinforcing strip 8, and one side of the reinforcing strip 8 is fixedly connected with an extension block 7.

[0030] One end of the extension block 7 penetrates through the side wall of one side of the heat conduction auxiliary layer 3.

[0031] The built-in strip 10 can be used to connect the connecting strips 9 on both sides. The connecting strip 9 can support the reinforcing strip 8, so as to ensure the stable installation and use of the reinforcing strip 8. An extension block 7 is installed on one side of the reinforcing strip 8. The extension block 7 can be used to assist the connection between the reinforcing strip 8 and the heat conduction auxiliary layer 3. The heat conduction auxiliary layers 3 symmetrically arranged on the upper and lower sides can improve the protection effect on the gel sheet base layer 4, thereby improving the heat conduction effect of the gel sheet.

[0032] The usage method and working principle of this device: First, the adhesive layer 1 and the adhesive layer 6 can respectively assist in the pasting on both sides of the heat-conducting gel sheet, thereby improving the tightness of the connection between the gel sheet and the irregular component, reducing the displacement and dropping of the heat-conducting gel sheet caused by loosening, and thus ensuring the stability of the installation position of the gel sheet and realizing the heat conduction effect on the electrical component. The flame-retardant protective layer 1 and the flame-retardant protective layer 5 are respectively coatings made of aluminum hydroxide and magnesium hydroxide coatings. The heat conduction auxiliary layer 3 is made of a PBO film treated by heat annealing, which can resist stretching while having heat conduction performance, reducing the fracture caused by external force stretching during the use of the gel sheet, and thus ensuring the service life of the heat-conducting gel sheet. The gel sheet base layer 4 is all made of heat-conducting gel. The extension block 7 and the reinforcing strip 8 are both made of metal. The connecting strip 9 and the built-in strip 10 both contain graphite fibers. Heat can be quickly conducted into the gel sheet base layer 4 through the heat conduction auxiliary layer 3, the extension block 7 and the reinforcing strip 8, thereby ensuring the overall heat conduction effect during the use of the gel sheet. The protective parts 11 are installed on both sides of the gel sheet. The adhesive layer 6 is located between the two protective parts 11. The bottom of the protective part 11 is flush with the adhesive layer 6, which can ensure the flatness during the connection on one side of the gel sheet, so that the bottom of the gel sheet is stably connected. The wrapping of the gel sheet on both sides by the protective parts 11 can reduce the wear on both sides of the gel sheet, and ventilation holes are provided on the protective parts 11, which can assist in the heat dissipation of the protective parts 11 and the gel sheet, thereby assisting in the installation and use of the gel sheet.

[0033] The above is only a preferred embodiment of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A thermally conductive gel sheet with flame retardant properties, comprising a gel sheet base layer (4), characterized in that: One side of the gel sheet base layer (4) is compounded with a heat-conducting auxiliary layer (3), one side of the heat-conducting auxiliary layer (3) is compounded with a flame-retardant protective layer (2) and an adhesive layer (1), and the other side of the gel sheet base layer (4) is compounded with a flame-retardant protective layer (5) and an adhesive layer (6), one side of the adhesive layer (6) is fixedly connected with a protective member (11), and one side of the protective member (11) is provided with a ventilation hole.

2. The flame retardant thermally conductive gel sheet according to claim 1, characterized in that: An internal built-in strip (10) is embedded in the gel sheet base layer (4), and a connecting strip (9) is fixedly connected to one side of the internal built-in strip (10).

3. The flame retardant thermally conductive gel sheet according to claim 2, characterized in that: One side of the connecting strip (9) is fixedly connected to a reinforcing strip (8), and one side of the reinforcing strip (8) is fixedly connected to an extension block (7).

4. The flame retardant thermally conductive gel sheet according to claim 3, characterized in that: One end of the extension block (7) penetrates through a side wall of the heat-conducting auxiliary layer (3).

5. The flame retardant thermally conductive gel sheet according to claim 1, characterized in that: One side of the adhesive layer 1 (1) is compounded with the flame retardant protective layer 1 (2), and the thickness of the adhesive layer 1 (1) is smaller than that of the flame retardant protective layer 1 (2).

6. The flame retardant thermally conductive gel sheet according to claim 1, characterized in that: One side of the second flame retardant protective layer (5) is compounded with the second adhesive layer (6), and the thickness of the second flame retardant protective layer (5) is the same as that of the second adhesive layer (6).

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