Composite heat-conductive gasket

Abstract

The utility model relates to a kind of composite heat-conducting gaskets, comprising: connecting frame, the inside bottom end of the connecting frame is provided with heat-conducting sheet, the bottom end face of the heat-conducting sheet, the bottom end face of the connecting frame is simultaneously provided with sticky guide layer, the top end face of the connecting frame is provided with heat-conducting plate, the inside of the connecting frame and between the heat-conducting sheet and the heat-conducting plate is provided with heat-conducting elastic sheet;When heat-generating element continues to work, the heat generated by heat-generating element can be quickly and efficiently conducted, the performance of heat-generating element can be prevented from being reduced or damaged due to the inability to quickly dissipate heat;When heat-generating element continues to work, the ability of the heat-conducting gasket to conduct the heat generated by heat-generating element to the radiator can be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of thermally conductive pads, specifically to a composite thermally conductive pad. Background Technology

[0002] Thermal pads are flexible thermally conductive materials used in electronic devices to transfer heat and reduce interfacial thermal resistance. They are mainly used to fill the gap between heat-generating components and heat sinks to improve heat dissipation efficiency.

[0003] Existing thermal pads cannot conduct heat generated by heating elements quickly and efficiently when the heating elements are working continuously, and cannot prevent the performance of the heating elements from degrading or being damaged due to the inability to dissipate heat quickly; they also cannot enhance the ability of thermal pads to conduct heat generated by the heating elements to the heat sink when the heating elements are working continuously.

[0004] The purpose of this invention is to design a composite thermally conductive pad to address the problems existing in the prior art. Utility Model Content

[0005] In view of the problems existing in the prior art, the present invention provides a composite thermally conductive pad that can effectively solve at least one of the problems existing in the prior art.

[0006] The technical solution of this utility model is:

[0007] A composite thermally conductive pad, comprising:

[0008] A connecting frame is provided with a heat-conducting sheet at its inner bottom end. An adhesive layer is provided on both the bottom surface of the heat-conducting sheet and the bottom surface of the connecting frame. A heat-conducting plate is provided on the top surface of the connecting frame. A heat-conducting spring is provided inside the connecting frame and between the heat-conducting sheet and the heat-conducting plate. A lower chamber is formed between the connecting frame, the heat-conducting sheet, and the heat-conducting spring. An upper chamber is formed between the connecting frame, the heat-conducting plate, and the heat-conducting spring. Heat-conducting powder is provided in the upper chamber.

[0009] A plurality of heat-conducting wires are provided, the top end of the heat-conducting wires being disposed on the bottom end of the heat-conducting elastic sheet, the bottom end of the heat-conducting wires being attached to the top end of the heat-conducting sheet, and a heat-complex being disposed between the heat-conducting elastic sheet and the heat-conducting plate and at the middle position of the heat-conducting elastic sheet.

[0010] When the heating element is working continuously, the heat generated by the heating element is conducted to the heat sink in sequence through the adhesive conductive layer, the heat-conducting sheet, several heat-conducting wires, the heat-conducting spring sheet, the heat-conducting powder, and the heat-conducting plate.

[0011] The thermal composite is used to absorb heat and restore its original shape when the heating element is working continuously and the heat generated by the heating element is conducted to the thermally conductive powder, so as to drive the thermally conductive elastic sheet to undergo upward elastic deformation and continuously compress the space of the upper chamber, thereby increasing the quantity concentration of thermally conductive powder in the upper chamber.

[0012] The thermal composite is used to absorb heat and restore its original shape when the heating element is working continuously and the heat generated by the heating element is conducted to the thermally conductive powder, so as to drive the thermally conductive spring sheet to undergo elastic deformation upward and continuously increase the contact area between the thermally conductive powder and the thermally conductive spring sheet.

[0013] Furthermore, an insulating and thermally conductive layer is provided within the adhesive conductive layer; the insulating and thermally conductive layer is used to prevent short-circuit current from being conducted to the heat sink when a short circuit occurs in the heating element.

[0014] Furthermore, the insulating and thermally conductive layer is a boron nitride layer.

[0015] Furthermore, the connecting frame is a graphene connecting frame, the heat-conducting sheet is a graphene heat-conducting sheet, and the heat-conducting plate is a graphene heat-conducting plate.

[0016] Furthermore, the heat-conducting spring is a beryllium copper alloy heat-conducting spring.

[0017] Furthermore, the thermally conductive powder is graphene thermally conductive powder or silver thermally conductive powder.

[0018] Furthermore, the heat-conducting wire is a silver-plated silk heat-conducting wire.

[0019] Furthermore, the adhesive layer is an ultra-soft substrate material layer, which is a cured thermally conductive silicone.

[0020] Furthermore, the thermal composite is a Ni-Ti shape memory metal alloy thermal composite.

[0021] Therefore, the present invention provides the following effects and / or advantages:

[0022] 1) The connecting frame is used to place the gap between the heating element and the heat sink. The adhesive layer is used to bond the heat-conducting pad to the surface of the heating element and to press the heat-conducting pad against the surface of the heat sink when the connecting frame is placed in the gap between the heating element and the heat sink.

[0023] When the heating element is working continuously, the heat generated by the heating element is conducted to the heat sink in sequence through the adhesive conductive layer, the heat-conducting sheet, several heat-conducting wires, the heat-conducting spring, the heat-conducting powder, and the heat-conducting plate. This allows the heat sink to dissipate the heat generated by the heating element quickly and efficiently, thereby preventing the performance of the heating element from deteriorating or being damaged due to the inability to dissipate heat quickly when the heating element is working continuously.

[0024] The thermal composite is used to absorb heat and return to its original shape when the heating element is working continuously and the heat generated by the heating element is conducted to the thermally conductive powder. This causes the thermally conductive spring sheet to undergo elastic deformation upward and continuously compress the space of the upper chamber, thereby increasing the quantity concentration of the thermally conductive powder in the upper chamber. This enhances the speed and efficiency of heat conduction between the thermally conductive powders, and further enhances the speed and efficiency of the thermally conductive powders conducting the heat of the heating element on the thermally conductive spring sheet to the heat-conducting plate.

[0025] The heat recovery body is used to absorb heat and restore its original shape when the heating element is working continuously and the heat generated by the heating element is conducted to the heat-conducting powder. This causes the heat-conducting elastic sheet to undergo upward elastic deformation, thereby continuously increasing the contact area between the heat-conducting powder and the heat-conducting elastic sheet, thus enhancing the speed and efficiency of heat conduction from the heating element on the heat-conducting elastic sheet to the heat-conducting powder.

[0026] During the upward elastic deformation of the heat-conducting spring sheet, the bottom ends of several heat-conducting wires remain attached to the top surface of the lower plate. This ensures that while the heat from the heating element on the heat-conducting spring sheet is conducted to the heat-conducting powder, and the heat from the heating element on the heat-conducting spring sheet is conducted to the heat-conducting plate by the heat-conducting powder, several heat-conducting wires can continuously and uninterruptedly conduct the heat from the heating element on the heat-conducting plate to the heat-conducting spring sheet.

[0027] In summary: when the heating element is working continuously, it can quickly and efficiently conduct the heat generated by the heating element, preventing the performance of the heating element from deteriorating or being damaged due to the inability to dissipate heat quickly; when the heating element is working continuously, it can enhance the ability of the thermal pad to conduct the heat generated by the heating element to the heat sink.

[0028] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0029] It should be understood that the above summary and the following detailed description of the present invention are exemplary and explanatory, and are intended to provide further explanation of the present invention as claimed. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model.

[0031] Figure 2 For the corresponding Figure 1 A cross-sectional view of the hidden heat conductor wires.

[0032] Figure 3 For the corresponding Figure 2 Enlarged view of part A.

[0033] Explanation of reference numerals in the attached figures:

[0034] Connecting frame 1, heat-conducting sheet 2, adhesive layer 3, heat-conducting plate 4, heat-conducting spring 5, lower chamber 6, upper chamber 7, heat-conducting powder 8, heat-conducting wire 9, heat-reinforcing composite 10, insulating heat-conducting layer 11. Detailed Implementation

[0035] To facilitate understanding by those skilled in the art, the structure of this utility model will now be described in further detail with reference to the accompanying drawings:

[0036] refer to Figure 1-3 A composite thermally conductive pad, comprising:

[0037] A connecting frame 1 is provided with a heat-conducting sheet 2 at its bottom interior. A conductive layer 3 is provided on both the bottom surface of the heat-conducting sheet 2 and the bottom surface of the connecting frame 1. A heat-conducting plate 4 is provided on the top surface of the connecting frame 1. A heat-conducting spring sheet 5 is provided inside the connecting frame 1 and between the heat-conducting sheet 2 and the heat-conducting plate 4. A lower chamber 6 is formed between the connecting frame 1, the heat-conducting sheet 2, and the heat-conducting spring sheet 5. An upper chamber 7 is formed between the connecting frame 1, the heat-conducting plate 4, and the heat-conducting spring sheet 5. Heat-conducting powder 8 is provided inside the upper chamber 7.

[0038] A plurality of heat-conducting wires 9 are provided, the top end of the heat-conducting wires 9 is disposed on the bottom end of the heat-conducting elastic sheet 5, the bottom end of the heat-conducting wires 9 is attached to the top end of the heat-conducting sheet 2, and a heat-complex 10 is provided between the heat-conducting elastic sheet 5 and the heat-conducting plate 4 and located in the middle of the heat-conducting elastic sheet 5.

[0039] When the heating element is working continuously, the heat generated by the heating element is conducted to the heat sink through the adhesive conductive layer 3, the heat-conducting sheet 2, several heat-conducting wires 9, the heat-conducting spring sheet 5, the heat-conducting powder 8, and the heat-conducting plate 4 in sequence, so that the heat sink can quickly and efficiently dissipate the heat generated by the heating element, thereby preventing the performance of the heating element from deteriorating or being damaged due to the inability to dissipate heat quickly when the heating element is working continuously.

[0040] The heat recovery body 10 is used to absorb heat and restore its original shape when the heating element is working continuously and the heat generated by the heating element is conducted to the heat-conducting powder 8. This causes the heat-conducting elastic sheet 5 to undergo upward elastic deformation and continuously compress the space of the upper chamber 7, thereby increasing the quantity concentration of the heat-conducting powder 8 in the upper chamber 7. This enhances the speed and efficiency of heat conduction between the heat-conducting powder 8, and further enhances the speed and efficiency of the heat-conducting powder 8 conducting the heat of the heating element on the heat-conducting elastic sheet 5 to the heat-conducting plate 4.

[0041] The heat recovery body 10 is used to absorb heat and restore its original shape when the heating element is working continuously and the heat generated by the heating element is conducted to the heat-conducting powder 8, so as to drive the heat-conducting elastic sheet 5 to undergo upward elastic deformation and continuously increase the contact area between the heat-conducting powder 8 and the heat-conducting elastic sheet 5, thereby enhancing the speed and efficiency of heat conduction from the heating element on the heat-conducting elastic sheet 5 to the heat-conducting powder 8.

[0042] During the upward elastic deformation of the heat-conducting spring sheet 5, the bottom ends of several heat-conducting wires 9 remain attached to the top surface of the lower plate. This ensures that the heat of the heating element on the heat-conducting spring sheet 5 is conducted to the heat-conducting powder 8, and the heat of the heating element on the heat-conducting spring sheet 5 is conducted to the heat-conducting plate 4. At the same time, it ensures that several heat-conducting wires 9 can continuously and uninterruptedly conduct the heat of the heating element on the heat-conducting sheet 2 to the heat-conducting spring sheet 5.

[0043] The connecting frame 1 is used to place the heat-generating element in the gap between the heat sink and the heat exchanger. The adhesive layer 3 is used to bond the heat-conducting pad to the surface of the heat-generating element and to press the heat-conducting pad against the surface of the heat exchanger when the connecting frame 1 is placed in the gap between the heat-generating element and the heat exchanger.

[0044] An insulating and thermally conductive layer 11 is provided inside the adhesive conductive layer 3; the insulating and thermally conductive layer 11 is used to prevent short-circuit current from being conducted to the heat sink when a short circuit occurs in the heating element.

[0045] The insulating and thermally conductive layer 11 is a boron nitride layer.

[0046] The connecting frame 1 is a graphene connecting frame 1, the heat-conducting sheet 2 is a graphene heat-conducting sheet 2, and the heat-conducting plate 4 is a graphene heat-conducting plate 4.

[0047] The heat-conducting spring 5 is a beryllium copper alloy heat-conducting spring 5.

[0048] The thermally conductive powder 8 is either graphene thermally conductive powder 8 or silver thermally conductive powder 8.

[0049] The heat-conducting wire 9 is a silver-plated silk heat-conducting wire 9.

[0050] The adhesive conductive layer 3 is an ultra-soft substrate material layer, which is a cured thermally conductive silicone.

[0051] The thermal composite 10 is a Ni-Ti shape memory alloy thermal composite 10.

[0052] It should be noted that any reference signs placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. This invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0053] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0054] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A composite thermally conductive pad, characterized in that: include: A connecting frame is provided with a heat-conducting sheet at its inner bottom end. An adhesive layer is provided on both the bottom surface of the heat-conducting sheet and the bottom surface of the connecting frame. A heat-conducting plate is provided on the top surface of the connecting frame. A heat-conducting spring is provided inside the connecting frame and between the heat-conducting sheet and the heat-conducting plate. A lower chamber is formed between the connecting frame, the heat-conducting sheet, and the heat-conducting spring. An upper chamber is formed between the connecting frame, the heat-conducting plate, and the heat-conducting spring. Heat-conducting powder is provided in the upper chamber. A plurality of heat-conducting wires are provided, the top end of the heat-conducting wires being disposed on the bottom end of the heat-conducting elastic sheet, the bottom end of the heat-conducting wires being attached to the top end of the heat-conducting sheet, and a heat-complex being disposed between the heat-conducting elastic sheet and the heat-conducting plate and at the middle position of the heat-conducting elastic sheet. When the heating element is working continuously, the heat generated by the heating element is conducted to the heat sink in sequence through the adhesive conductive layer, the heat-conducting sheet, several heat-conducting wires, the heat-conducting spring sheet, the heat-conducting powder, and the heat-conducting plate. The thermal composite is used to absorb heat and restore its original shape when the heating element is working continuously and the heat generated by the heating element is conducted to the thermally conductive powder, so as to drive the thermally conductive elastic sheet to undergo upward elastic deformation and continuously compress the space of the upper chamber, thereby increasing the quantity concentration of thermally conductive powder in the upper chamber. The thermal composite is used to absorb heat and restore its original shape when the heating element is working continuously and the heat generated by the heating element is conducted to the thermally conductive powder, so as to drive the thermally conductive spring sheet to undergo elastic deformation upward and continuously increase the contact area between the thermally conductive powder and the thermally conductive spring sheet.

2. The composite thermally conductive pad according to claim 1, characterized in that: An insulating and thermally conductive layer is provided within the adhesive conductive layer; the insulating and thermally conductive layer is used to prevent short-circuit current from being conducted to the heat sink when a short circuit occurs in the heating element.

3. The composite thermally conductive pad according to claim 2, characterized in that: The insulating and thermally conductive layer is a boron nitride layer.

4. The composite thermally conductive pad according to claim 1, characterized in that: The connecting frame is a graphene connecting frame, the heat-conducting sheet is a graphene heat-conducting sheet, and the heat-conducting plate is a graphene heat-conducting plate.

5. A composite thermally conductive pad according to claim 1, characterized in that: The heat-conducting spring is a beryllium copper alloy heat-conducting spring.

6. A composite thermally conductive pad according to claim 1, characterized in that: The thermally conductive powder is graphene thermally conductive powder or silver thermally conductive powder.

7. A composite thermally conductive pad according to claim 1, characterized in that: The heat-conducting wire is a silver-plated silk heat-conducting wire.

8. A composite thermally conductive pad according to claim 1, characterized in that: The adhesive conductive layer is an ultra-soft substrate material layer, which is a cured thermally conductive silicone.

9. A composite thermally conductive pad according to claim 1, characterized in that: The thermal composite is a Ni-Ti shape memory alloy thermal composite.

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