CN214102138U - Composite heat-conducting gasket - Google Patents
Composite heat-conducting gasket Download PDFInfo
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- CN214102138U CN214102138U CN202022877116.7U CN202022877116U CN214102138U CN 214102138 U CN214102138 U CN 214102138U CN 202022877116 U CN202022877116 U CN 202022877116U CN 214102138 U CN214102138 U CN 214102138U
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- heat
- conducting
- heat conduction
- adhesive tape
- conduction
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Abstract
The utility model discloses a composite heat-conducting gasket in the field of heat-conducting gaskets, which comprises a heat-conducting adhesive tape, a heat-conducting insulating elastic rubber and a main body, wherein the heat-conducting adhesive tape is fixed at the upper end and the lower end of the main body, the heat-conducting insulating elastic rubber is fixed at the periphery of the main body, the inner side of the heat-conducting adhesive tape is fixedly connected with a heat-conducting pouring sealant, the inner side of the heat-conducting pouring sealant is filled with a heat-conducting silica gel sheet, heat-conducting silicone grease and a phase-change heat-conducting insulating material, and the inner side of the heat-conducting pouring sealant is fixedly provided with a heat-conducting film. The pressure of the seal is stabilized.
Description
Technical Field
The utility model relates to a heat gasket technical field specifically is a compound heat gasket.
Background
The heat conducting gaskets fill the air gap between the heat generating device and the heat sink or metal base, and their flexible and elastic characteristics enable them to be used to cover very uneven surfaces. Heat is conducted from the discrete device or the entire PCB to the metal housing or diffuser plate, thereby increasing the efficiency and life of the heat-generating electronic assembly.
When the existing composite heat conduction gasket is used, the pressure and the temperature are mutually restricted, and along with the increase of the temperature, after equipment runs for a period of time, the gasket material generates the phenomena of softening, creep deformation and stress relaxation, the mechanical strength is also reduced, and the sealing pressure is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compound heat conduction gasket to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a compound heat conduction gasket, includes heat-conduction sticky tape, heat conduction insulating elastic rubber and main part, the heat-conduction sticky tape is fixed in the upper and lower both ends of main part, heat conduction insulating elastic rubber is fixed in around the main part, the inboard fixedly connected with heat conduction casting glue of heat-conduction sticky tape, the inboard packing of heat conduction casting glue is provided with heat conduction silica gel piece, heat conduction silicon adhesive tape, heat conduction silicone grease and phase transition heat conduction insulating material, the inboard of heat conduction casting glue is fixed and is provided with the heat conduction membrane, the inboard of heat conduction membrane is opened the chamber and is provided with hydrogen chamber.
As a further aspect of the present invention: the heat-conducting silicone grease is arranged on the uppermost layer of the heat-conducting pouring sealant, the phase-change heat-conducting insulating material is arranged on the second layer of the heat-conducting pouring sealant, the heat-conducting silicone sheet is arranged on the third layer of the heat-conducting pouring sealant, and the heat-conducting silicone sheet is arranged on the fourth layer of the heat-conducting pouring sealant.
As a further aspect of the present invention: the heat-conducting film is fixedly wrapped with the heat-conducting pad through the heat-conducting silica gel sheet.
As a further aspect of the present invention: the upper end and the lower end of the thermal insulation elastic rubber are bonded with the heat conduction adhesive tape.
As a further aspect of the present invention: the inner side of the heat-conducting insulating elastic rubber is filled with a silicon rubber substrate, and ceramic particles such as boron nitride, glass fiber and alumina are filled in the heat-conducting insulating elastic rubber.
As a further aspect of the present invention: the thickness of the main body is 0.3mm-0.4 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through setting up hydrogen chamber and heat conduction insulating elastic rubber, when compound heat gasket is when using, because the permanent use of equipment, pressure, the temperature that heat gasket received all can increase, and hydrogen in the hydrogen chamber is owing to receive high temperature to influence, and the hydrogen inflation prevents that compound heat gasket from taking place to soften, creep, stress relaxation phenomenon, and sealed pressure can be stabilized.
2. The utility model discloses in, through setting up heat conduction insulating elastic rubber, heat conduction insulating elastic rubber is under the same condition, and thermal impedance will be less than other heat conduction materials, has the softness, and is clean, pollution-free and radioactivity, high insulating nature's characteristics, glass fiber reinforcement provide good mechanical properties, can prevent impaling, anti-shear, tear to improve compound heat conduction gasket's mechanical strength.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a cross-sectional view of the whole body of the present invention;
fig. 3 is a schematic view of the overall internal structure of the present invention.
In the figure: 1. a thermally conductive tape; 2. heat-conductive insulating elastic rubber; 3. heat conducting pouring sealant; 4. a heat-conducting silica gel sheet; 5. a heat conductive silicon tape; 6. heat-conducting silicone grease; 7. a phase change heat conductive insulating material; 8. a thermally conductive film; 9. a hydrogen chamber; 10. a main body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment of the present invention, a composite heat conductive gasket includes a heat conductive adhesive tape 1, a heat conductive insulating elastic rubber 2, and a main body 10, and is characterized in that: the heat conduction adhesive tape 1 is fixed at the upper end and the lower end of the main body 10, the heat conduction insulating elastic rubber 2 is fixed around the main body 10, the inner side of the heat conduction adhesive tape 1 is fixedly connected with a heat conduction pouring sealant 3, the inner side of the heat conduction pouring sealant 3 is filled with a heat conduction silicon rubber sheet 4, a heat conduction silicon adhesive tape 5, heat conduction silicone grease 6 and a phase change heat conduction insulating material 7, the inner side of the heat conduction pouring sealant 3 is fixedly provided with a heat conduction film 8, and the inner side of the heat conduction film 8 is provided with a hydrogen chamber 9 in an open cavity.
Wherein, the heat-conducting silicone grease 6 is arranged on the uppermost layer of the heat-conducting pouring sealant 3, the phase-change heat-conducting insulating material 7 is arranged on the second layer of the heat-conducting pouring sealant 3, the heat-conducting silicone sheet 4 is arranged on the third layer of the heat-conducting pouring sealant 3, the heat-conducting silicone adhesive tape 5 is arranged on the fourth layer of the heat-conducting pouring sealant 3, the heat-conducting film 8 is wrapped and fixed with the heat-conducting pad 7 through the heat-conducting silicone sheet 4, the upper end and the lower end of the heat-insulating elastic rubber 2 are adhered with the heat-conducting adhesive tape 1, the inner side of the heat-conducting insulating elastic rubber 2 is filled with silicone rubber base materials, and ceramic particles such as boron nitride, glass fiber, alumina and the like, through the design, the heat-conducting silicone grease 6 is used for conducting the heat emitted by the CPU to the phase-change heat-conducting insulating material 7, so that the temperature, the phase change occurs at the working temperature, so that the material is more attached to the contact surface, simultaneously, ultralow thermal resistance is obtained, and heat transfer is more thoroughly carried out, the main purpose of the heat-conducting silica gel sheet 4 is to reduce the thermal contact resistance generated between the surface of a heat source and the contact surface of a heat dissipation device, the heat-conducting silica gel sheet 4 can well fill the gap of the contact surface, the heat-conducting silica gel sheet 5 can effectively reduce the thermal resistance between an electronic component and a heat sink, and the heat-conducting silica gel sheet is electrically insulated, has high dielectric strength, good thermal conductivity and high chemical resistance, can resist the short circuit caused by high voltage and piercing of metal pieces, when the composite heat-conducting gasket is used, the pressure and the temperature of the heat-conducting gasket can be increased due to the long-term use of equipment, and the hydrogen in the hydrogen chamber 9 is influenced by high temperature and expands to prevent the composite heat-conducting gasket from softening, The sealing pressure is stable due to the phenomena of creep deformation, stress relaxation and the like, the thermal impedance of the heat-conducting insulating elastic rubber 2 is lower than that of other heat-conducting materials under the same condition, and the heat-conducting insulating elastic rubber has the characteristics of softness, cleanness, no pollution, radioactivity and high insulativity, and the glass fiber reinforcement provides good mechanical property and can prevent puncture, shear and tear, so that the mechanical strength of the composite heat-conducting gasket is improved.
The thickness of the main body 10 is 0.3mm-0.4mm, and through the design, the resistance of the composite heat conduction gasket is reduced, the heat conductivity of the composite heat conduction gasket is improved, electric appliance elements are prevented from being damaged due to poor heat conductivity, and the reliability is high.
The utility model discloses a theory of operation is: when the device is used, firstly, the main body 10 is bonded at an electric appliance element or a circuit needing heat conduction through the heat conduction adhesive tape 1, then the main body 10 is firmly bonded with the electric appliance element or the circuit through pressing the main body 10, the heat conduction silicone grease 6 is used for conducting heat emitted by a CPU to the phase change heat conduction insulating material 7, so that the temperature of the CPU is kept at a level capable of stably working, the CPU is prevented from being damaged due to poor heat dissipation, the service life is prolonged, the phase change heat conduction insulating material 7 utilizes the characteristics of a base material, phase change occurs in the working temperature, so that the material is more attached to a contact surface, meanwhile, ultralow heat resistance is obtained, heat transfer is more thoroughly carried out, the heat conduction silicone sheet 4 is selected for the main purpose of reducing the contact heat resistance generated between the heat source surface and the contact surface of a heat dissipation device, and the heat conduction silicone sheet 4 can well fill the gap of the contact surface, the heat-conducting silicon adhesive tape 5 can effectively reduce the thermal resistance between an electronic component and a radiator, is electrically insulated, has high dielectric strength, good heat conductivity and high chemical resistance, can resist the short circuit of a circuit caused by high voltage and the puncture of a metal piece, when the composite heat-conducting gasket is used, because the composite heat-conducting gasket is used for a long time, the pressure and the temperature of the heat-conducting gasket can be increased, the hydrogen in the hydrogen chamber 9 is influenced by high temperature and expands by the hydrogen, the composite heat-conducting gasket is prevented from softening, creeping, stress and other relaxation phenomena, the sealing pressure is stable, the heat resistance of the heat-conducting insulating elastic rubber 2 is smaller than that of other heat-conducting materials under the same condition, and the composite heat-conducting elastic rubber has the characteristics of softness, cleanness, no pollution, no radioactivity and high insulativity, the glass fiber reinforcement provides good mechanical property, and can prevent puncture, shear and tear, thereby improving the mechanical strength of the composite heat-conducting gasket.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a compound heat conduction gasket, includes heat-conduction sticky tape (1), heat conduction insulating elasticity rubber (2) and main part (10), its characterized in that: the utility model discloses a heat conduction adhesive tape (1) is fixed in the upper and lower both ends of main part (10), around main part (10) is fixed in heat conduction insulating elastic rubber (2), inboard fixedly connected with heat conduction casting glue (3) of heat conduction adhesive tape (1), the inboard packing of heat conduction casting glue (3) is provided with heat conduction silica gel piece (4), heat conduction silicon adhesive tape (5), heat conduction silicone grease (6) and phase transition heat conduction insulating material (7), the inboard of heat conduction casting glue (3) is fixed and is provided with heat conduction membrane (8), the inboard of heat conduction membrane (8) is opened the chamber and is provided with hydrogen chamber (9).
2. A composite thermal gasket as set forth in claim 1, wherein: the heat-conducting silicone grease (6) is arranged on the uppermost layer of the heat-conducting pouring sealant (3), the phase-change heat-conducting insulating material (7) is arranged on the second layer of the heat-conducting pouring sealant (3), the heat-conducting silicone sheet (4) is arranged on the third layer of the heat-conducting pouring sealant (3), and the heat-conducting silicone adhesive tape (5) is arranged on the fourth layer of the heat-conducting pouring sealant (3).
3. A composite thermal gasket as set forth in claim 1, wherein: the heat conducting film (8) is fixedly wrapped with the phase change heat conducting insulating material (7) through the heat conducting silica gel sheet (4).
4. A composite thermal gasket as set forth in claim 1, wherein: the upper end and the lower end of the heat-conducting insulating elastic rubber (2) are bonded with the heat-conducting adhesive tape (1).
5. A composite thermal gasket as set forth in claim 1, wherein: the thickness of the main body (10) is 0.3mm-0.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022877116.7U CN214102138U (en) | 2020-12-02 | 2020-12-02 | Composite heat-conducting gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022877116.7U CN214102138U (en) | 2020-12-02 | 2020-12-02 | Composite heat-conducting gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214102138U true CN214102138U (en) | 2021-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022877116.7U Active CN214102138U (en) | 2020-12-02 | 2020-12-02 | Composite heat-conducting gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214102138U (en) |
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2020
- 2020-12-02 CN CN202022877116.7U patent/CN214102138U/en active Active
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