High-efficiency conduction type composite insulation sheet

Abstract

The utility model relates to the technical field of composite insulation sheets, and discloses an efficient conduction type composite insulation sheet, which comprises a heat conduction layer, a bonding layer arranged on the surface of the upper end of the heat conduction layer, a first waterproof layer bonded on the surface of one end of the heat conduction layer far away from the bonding layer, and a first corrosion-resistant layer bonded on the surface of one end of the first waterproof layer far away from the heat conduction layer. A plurality of heat dissipation through holes are formed in the first corrosion-resistant layer, the surface of the end, away from the first waterproof layer, of the first corrosion-resistant layer is bonded with a buffer layer, the bottom layer is bonded with a middle layer through a bonding layer, and the surface of the end, away from the bottom layer, of the middle layer is bonded with a top layer. According to the utility model, through the arrangement of the first waterproof layer, the first corrosion-resistant layer and the buffer layer, the bottom layer structure of the insulation sheet body is not single any more, the erosion of the external environment to the insulation sheet body is avoided, and thus the service life of the insulation sheet body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of composite insulating sheets, in particular to a highly efficient conductive composite insulating sheet. Background Art

[0002] The highly efficient conductive composite insulating sheet is a material used in electronic devices and power systems, with both high thermal conductivity and good electrical insulation performance. This composite material is usually used for electronic components that require heat dissipation, such as integrated circuits, power semiconductor devices, etc.

[0003] The insulating sheet is usually installed in places with high humidity and strong corrosiveness, so the bottom layer is exposed to a humid and strongly corrosive environment. However, most of the existing insulating sheets have a single bottom layer structure and cannot adapt to complex environments, resulting in damage to the insulating sheet and shortening its service life. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a highly efficient conductive composite insulating sheet, aiming to improve the problem that the bottom layer structure of the insulating sheet is single and cannot adapt to complex environments.

[0005] To achieve the above object, the utility model provides the following technical solution: A highly efficient conductive composite insulating sheet includes a heat-conducting layer. A bonding layer is provided on the upper surface of the heat-conducting layer. A first waterproof layer is bonded to the surface of the heat-conducting layer away from the bonding layer. A first corrosion-resistant layer is bonded to the surface of the first waterproof layer away from the heat-conducting layer. A plurality of heat dissipation through holes are provided inside the first corrosion-resistant layer. A buffer layer is bonded to the surface of the first corrosion-resistant layer away from the first waterproof layer. The bonding layer, heat-conducting layer, first waterproof layer, first corrosion-resistant layer and buffer layer form the bottom layer. The bottom layer is bonded to the middle layer through the bonding layer. The top layer is bonded to the surface of the middle layer away from the bottom layer.

[0006] Preferably, the top layer includes a wear-resistant layer. A second corrosion-resistant layer is bonded to the upper surface of the wear-resistant layer. An anti-static layer is bonded to the surface of the wear-resistant layer away from the second corrosion-resistant layer. A release film layer is bonded to the surface of the wear-resistant layer away from the second corrosion-resistant layer. A second waterproof layer is bonded to the surface of the release film layer away from the wear-resistant layer. An oxidized silicon layer is bonded to the surface of the second waterproof layer away from the release film layer.

[0007] Preferably, the top layer, middle layer and bottom layer form the insulating sheet body. A plurality of protrusions are provided on the upper surface of the insulating sheet body. A plurality of grooves are provided on the lower surface of the insulating sheet body.

[0008] Preferably, the bonding layer is made of polyurethane material and is extrusion molded. The heat-conducting layer uses heat-conducting silicone grease material. The first waterproof layer is made of polyvinyl chloride and is extrusion molded.

[0009] Preferably, the first corrosion-resistant layer is made of aluminum alloy material and is extruded, and the buffer layer is made of silicone material and is extruded.

[0010] Preferably, the antistatic layer is made of conductive polymer and is extruded, the second corrosion-resistant layer is made of galvanized steel plate, and the wear-resistant layer is made of polytetrafluoroethylene.

[0011] Preferably, the second waterproof layer is made of polyethylene material and is extruded.

[0012] Preferably, the middle layer is made of a mixture of polyimide and aluminum oxide and is extruded.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the present invention, through the arrangement of the first waterproof layer, the first corrosion-resistant layer and the buffer layer, the first waterproof layer of polyvinyl chloride can effectively prevent water vapor penetration, so that the bottom layer can adapt to a humid environment; the first corrosion-resistant layer can effectively resist the erosion of corrosive substances such as acids, alkalis, and salts, and can reduce the corrosion of the insulating sheet body; the buffer layer protects the electronic components inside the insulating sheet body from mechanical damage. This arrangement makes the bottom structure of the insulating sheet body no longer single, so that the insulating sheet can adapt to a humid and complex environment, avoiding the erosion of the insulating sheet body by the external environment, thereby extending the service life of the insulating sheet body.

[0015] 2. In the present invention, by setting the protrusions, grooves and heat dissipation holes, the protrusions and grooves can leave a gap when the insulating sheet body is connected to the external equipment. Combined with the heat dissipation holes, the heat dissipation efficiency of the insulating sheet body can be improved, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a high-efficiency conductive composite insulating sheet proposed in the utility model;

[0017] Figure 2 This is a diagram showing the internal structure of the insulating sheet body of a high-efficiency conductive composite insulating sheet proposed in the present invention;

[0018] Figure 3 This is a diagram showing the internal structure of the bottom layer of a high-efficiency conductive composite insulating sheet proposed in the present invention;

[0019] Figure 4 This is a diagram of the internal structure of the top layer of a high-efficiency conductive composite insulating sheet proposed in the present invention.

[0020] Legend:

[0021] 1. Insulating sheet body; 2. Protrusion; 3. Groove; 4. Top layer; 5. Middle layer; 6. Bottom layer; 7. Adhesive layer; 8. Heat-conducting layer; 9. First waterproof layer; 10. First corrosion-resistant layer; 11. Buffer layer; 12. Heat dissipation through-hole; 13. Antistatic layer; 14. Second corrosion-resistant layer; 15. Wear-resistant layer; 16. Release film layer; 17. Second waterproof layer; 18. Silicon oxide layer. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment provided by the present invention: A highly conductive composite insulating sheet includes a heat-conducting layer 8. An adhesive layer 7 is disposed on the upper surface of the heat-conducting layer 8. The heat-conducting layer 8 uses a heat-conducting silicone grease material, and the adhesive layer 7 is made of polyurethane material and is extrusion molded. The adhesive layer 7 can bond the middle layer 5 and has the advantages of wear resistance and hydrolysis resistance. One end surface of the heat-conducting layer 8 away from the adhesive layer 7 is bonded with a first waterproof layer 9. The first waterproof layer 9 is made of polyvinyl chloride and is extrusion molded. One end surface of the first waterproof layer 9 away from the heat-conducting layer 8 is bonded with a first corrosion-resistant layer 10. The first corrosion-resistant layer 10 is made of aluminum alloy material and is extrusion molded. A plurality of heat dissipation through-holes 12 are formed inside the first corrosion-resistant layer 10. One end surface of the first corrosion-resistant layer 10 away from the first waterproof layer 9, one end surface of the first corrosion-resistant layer 10 is bonded with a buffer layer 11. The buffer layer 11 is made of silicone material and is extrusion molded. The adhesive layer 7, the heat-conducting layer 8, the first waterproof layer 9, the first corrosion-resistant layer 10 and the buffer layer 11 form a bottom layer 6. The bottom layer 6 bonds the middle layer 5 through the adhesive layer 7. One end surface of the middle layer 5 away from the bottom layer 6 is bonded with a top layer 4.

[0024] Specifically, the first waterproof layer 9 of polyvinyl chloride has good water resistance, which can effectively prevent water vapor penetration, protect the electronic components inside the insulating sheet from being affected by moisture, and has good abrasion resistance, which can withstand a certain degree of friction and wear, ensuring that the insulating sheet will not be easily damaged during use; a dense aluminum oxide film will form on the surface of the aluminum alloy of the first corrosion-resistant layer 10, which has good corrosion resistance and can effectively resist the erosion of corrosive substances such as acids, alkalis, and salts, extending the life of the insulating sheet. Moreover, aluminum alloy has good electrical conductivity, which can effectively reduce the resistance of the insulating sheet and improve its electrical conductivity; the buffer layer 11 is made of silica gel because it has good elasticity and flexibility, which can effectively absorb impacts and vibrations, protect the electronic components inside the insulating sheet from mechanical damage, and silica gel has good insulation performance, which can effectively prevent current leakage and ensure the safety of the insulating sheet. This setting enables the insulating sheet body to better adapt to different complex working environments.

[0025] Referring to Figure 2 and Figure 4 , the top layer 4 includes a wear-resistant layer 15. The upper surface of the wear-resistant layer 15 is adhesively bonded to the second corrosion-resistant layer 14. The second corrosion-resistant layer 14 is made of galvanized steel sheet material, and the wear-resistant layer 15 is made of polytetrafluoroethylene material. The surface of the wear-resistant layer 15 away from the second corrosion-resistant layer 14 is adhesively bonded to an antistatic layer 13. The antistatic layer 13 uses a conductive polymer and is extrusion molded. The surface of the wear-resistant layer 15 away from the second corrosion-resistant layer 14 is adhesively bonded to a release film layer 16. The surface of the release film layer 16 away from the wear-resistant layer 15 is adhesively bonded to a second waterproof layer 17. The second waterproof layer 17 is made of polyethylene material and is extrusion molded. The surface of the second waterproof layer 17 away from the release film layer 16 is adhesively bonded to a silicon oxide layer 18.

[0026] Specifically, the reason for using galvanized steel sheet for the second corrosion-resistant layer 14 is that its surface is covered with a zinc layer, which can effectively resist the erosion of corrosive substances such as acids, alkalis, and salts, extending the life of the insulating sheet; the wear-resistant layer 15 is made of polytetrafluoroethylene material because it can maintain good physical and chemical properties in high-temperature environments without softening or deforming, ensuring the stability of the insulating sheet; the antistatic layer 13 can prevent static electricity from interfering with the normal operation of electronic devices, and the antistatic layer 13 can protect the insulating sheet from damage caused by static discharge, extending the life of the insulating sheet; the release film layer 16 can facilitate the peeling and use of the insulating sheet body 1; the silicon oxide layer 18 has good insulation performance, which can effectively isolate the electrical connection between the device and the external environment, preventing the electronic device from being externally interfered with or damaged. This setting further improves the physical properties of the insulating sheet body 1 and makes its performance more stable.

[0027] Referring to Figure 1 and Figure 2, the top layer 4, the middle layer 5, and the bottom layer 6 form the insulating sheet body 1. The middle layer 5 is made of a mixture of polyimide and alumina and is extrusion molded. A plurality of protrusions 2 are provided on the upper end surface of the insulating sheet body 1, and a plurality of grooves 3 are formed on the lower end surface of the insulating sheet body 1.

[0028] Specifically, after the polyimide and alumina are mixed, the mechanical strength and hardness of the middle layer 5 of the insulating sheet can be increased, its compressive and bending resistance can be improved, the risk of damage during use can be reduced, and to a certain extent, the thermal conductivity of the insulating sheet body 1 can be improved, which is beneficial to heat dissipation and maintaining the stable working temperature of the device. The protrusions 2 and the grooves 3 can leave a certain gap when the insulating sheet body 1 is connected to the electronic device, which is beneficial to the heat dissipation of the insulating sheet body 1. Together with the heat dissipation through holes 12 in the first corrosion-resistant layer 10, the heat dissipation efficiency of the insulating sheet body 1 can be higher, which is beneficial to the stable operation of the insulating sheet body 1.

[0029] Working principle: The first waterproof layer 9 can effectively prevent water vapor penetration and protect the electronic components inside the insulating sheet from being affected by moisture. The first corrosion-resistant layer 10 can effectively resist the erosion of corrosive substances such as acids, alkalis, and salts. The buffer layer 11 can effectively absorb impacts and vibrations and protect the electronic components inside the insulating sheet from mechanical damage. These materials can make the structure of the bottom layer 6 of the insulating sheet body 1 no longer single, enabling the insulating layer body 1 to adapt to different working environments, reducing the damage of the insulating sheet body 1, and thus extending its service life; through the protrusions 2 and the grooves 3, a gap can be left when the insulating sheet body 1 is connected to external equipment, and together with the heat dissipation through holes 12, the heat dissipation efficiency of the insulating sheet body can be higher.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An efficient conductive composite insulating sheet, comprising a heat-conducting layer (8), characterized in that: The upper surface of the heat-conducting layer (8) is provided with an adhesive layer (7). One end surface of the heat-conducting layer (8) away from the adhesive layer (7) is adhesively bonded with a first waterproof layer (9). One end surface of the first waterproof layer (9) away from the heat-conducting layer (8) is adhesively bonded with a first corrosion-resistant layer (10). A plurality of heat dissipation through-holes (12) are formed inside the first corrosion-resistant layer (10). One end surface of the first corrosion-resistant layer (10) away from the first waterproof layer (9), one end surface of the first corrosion-resistant layer (10) is adhesively bonded with a buffer layer (11). The adhesive layer (7), the heat-conducting layer (8), the first waterproof layer (9), the first corrosion-resistant layer (10) and the buffer layer (11) form a bottom layer (6). The bottom layer (6) is adhesively bonded to a middle layer (5) through the adhesive layer (7). One end surface of the middle layer (5) away from the bottom layer (6) is adhesively bonded with a top layer (4).

2. An efficient conduction type composite insulating sheet according to claim 1, characterized in that: The top layer (4) includes a wear-resistant layer (15). The upper surface of the wear-resistant layer (15) is adhesively bonded with a second corrosion-resistant layer (14). One end surface of the wear-resistant layer (15) away from the second corrosion-resistant layer (14) is adhesively bonded with an anti-static layer (13). One end surface of the wear-resistant layer (15) away from the second corrosion-resistant layer (14) is adhesively bonded with a release film layer (16). One end surface of the release film layer (16) away from the wear-resistant layer (15) is adhesively bonded with a second waterproof layer (17). One end surface of the second waterproof layer (17) away from the release film layer (16) is adhesively bonded with a silicon oxide layer (18).

3. An efficient conduction type composite insulating sheet according to claim 1, characterized in that: The top layer (4), the middle layer (5) and the bottom layer (6) form an insulating sheet body (1). A plurality of protrusions (2) are provided on the upper surface of the insulating sheet body (1). A plurality of grooves (3) are formed on the lower surface of the insulating sheet body (1).

4. An efficient conduction type composite insulating sheet according to claim 1, characterized in that: The adhesive layer (7) is made of polyurethane material and is formed by extrusion. The heat-conducting layer (8) uses heat-conducting silicone grease material. The first waterproof layer (9) is made of polyvinyl chloride and is formed by extrusion.

5. An efficient conduction type composite insulating sheet according to claim 1, characterized in that: The first corrosion-resistant layer (10) is made of aluminum alloy material and is formed by extrusion. The buffer layer (11) is made of silicone material and is formed by extrusion.

6. The highly efficient conductive composite insulating sheet according to claim 2, wherein: The anti-static layer (13) uses conductive polymer and is formed by extrusion. The second corrosion-resistant layer (14) is made of galvanized steel sheet material. The wear-resistant layer (15) is made of polytetrafluoroethylene material.

7. An efficient conduction type composite insulating sheet according to claim 2, characterized in that: The second waterproof layer (17) is made of polyethylene material and is formed by extrusion.

8. An efficient conduction type composite insulating sheet according to claim 1, characterized in that: The middle layer (5) is made of a mixture of polyimide and alumina and is formed by extrusion.

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