Heat-conducting silica gel sheet

Abstract

The utility model relates to a heat-conducting silica gel sheet, which belongs to the technical field of heat-conducting silica gel sheets and comprises a mounting frame, and the inner wall of the mounting frame is fixedly connected with a plurality of heat-conducting silica gel sheet bodies. The utility model has the beneficial effects that the four semicircular grooves can be combined into a whole circular groove, the iron plate is clamped with the corresponding whole circular groove, at the moment, the insertion rod at the bottom of the iron plate can be inserted into the insertion hole and the clamping hole, the magnetic plate can be clamped with the clamping groove, and the magnetic plate and the iron plate are matched for use, so that the magnetic plate can be clamped with the clamping groove. By means of the structure, the connection strength between every two adjacent heat-conducting silica gel sheet bodies can be enhanced, the heat-conducting silica gel sheet bodies are stable and not prone to wrinkling and loosening in the using process, the large heat-conducting silica gel sheet can be divided into small sheets one by one by means of the structure, the internal tension of the large heat-conducting silica gel sheet can be reduced in the mode, and the service life of the large heat-conducting silica gel sheet is prolonged. Therefore, the overlarge deformation of each laminated structure can be reduced, and the heat conduction effect of the heat conduction silica gel sheet body can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of thermally conductive silicone sheets, in particular to a thermally conductive silicone sheet. Background Art

[0002] Thermally conductive silicone sheets are used to fill the air gap between the heat generating device and the heat sink or metal base. Their flexible and elastic characteristics enable them to be used to cover very uneven surfaces. Heat is transferred from the separated device or the entire PCB to the metal housing or diffusion plate, thereby improving the efficiency and service life of the heat generating electronic components.

[0003] After searching, a Chinese patent discloses a thermally conductive silicone sheet (authorization announcement number CN217985869U), including a first thermally conductive silicone layer, a graphite film layer and a second thermally conductive silicone layer stacked in sequence from top to bottom, the shape of the graphite film layer is a flat S-shape, and the S-shaped cavity is filled with a thermally conductive mud layer, a reinforcement layer is arranged between the graphite film layer and the second thermally conductive silicone layer, a plurality of thermally conductive copper tubes are arranged in the first thermally conductive silicone layer, and a thermally conductive reinforcement layer is arranged on the outer surface of the second thermally conductive silicone layer. Although the shape of the graphite film layer in this patented technology is a flat S-shape, and the S-shaped cavity is filled with a thermally conductive mud layer, since the graphite film has excellent thermal conductivity in the lateral direction but insufficient thermal conductivity in the longitudinal direction, the heat can be transferred along the S-shaped graphite film layer of the S-shaped graphite film layer. Compared with the conventional planar graphite film structure, this structural design increases the thermal conductivity of the thermally conductive silicone sheet in the longitudinal direction, thereby significantly improving the thermal conductivity of the thermally conductive silicone sheet.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that during the use of the above thermally conductive silicone sheet, the material of the thermally conductive silicone sheet will soften and the stress will relax as the temperature rises, which will cause the various laminated structures to deform too much and lead to poor thermal conductivity. Utility Model Content

[0005] In view of the problem in the prior art that during use, the thermally conductive silicone sheet will soften and experience stress relaxation as the temperature rises, which may cause excessive deformation of each laminated structure and lead to poor thermal conductivity. The main purpose of the utility model is to provide a thermally conductive silicone sheet.

[0006] The technical solution of the utility model is as follows: a thermally conductive silicone sheet comprises a mounting frame, wherein the inner wall of the mounting frame is fixedly connected with a plurality of thermally conductive silicone sheet bodies, semicircular grooves are provided inside two adjacent thermally conductive silicone sheet bodies, and insertion holes are provided inside the thermally conductive silicone sheet bodies and below the semicircular grooves, iron plates are clamped between the four semicircular grooves, and the bottom ends of the iron plates are fixedly connected with insertion rods used in conjunction with the insertion holes, clamping grooves are provided between the bottom ends of the plurality of thermally conductive silicone sheet bodies, magnetic plates are clamped inside the clamping grooves, and four clamping holes are provided inside the magnetic plates, and the insertion rods are clamped with the insertion holes and the clamping holes, and replacement mechanisms are provided on both sides of the mounting frame.

[0007] By adopting the above technical solution, through the coordinated use of the magnetic plate and the iron plate, the connection strength between two adjacent thermally conductive silicone sheet bodies can be strengthened, so that the thermally conductive silicone sheet body is relatively stable during use and is not prone to wrinkling and loosening. By utilizing the above structure, a large thermally conductive silicone sheet can be divided into small pieces. In this way, the internal tension of the large thermally conductive silicone sheet can be reduced, and then the excessive deformation of each laminated structure can be reduced, thereby ensuring the thermal conductivity effect of the thermally conductive silicone sheet body.

[0008] As a preferred embodiment, the replacement mechanism includes sliding grooves opened on both sides of the installation frame, the interior of the sliding grooves are rotatably connected with bidirectional screw rods, both ends of the outer sides of the bidirectional screw rods are threadedly connected with clamping blocks, and the clamping blocks are slidably connected to the inner walls of the corresponding sliding grooves.

[0009] By adopting the above technical solution, the card block can be driven to slide in the corresponding slide groove through the rotation of the bidirectional screw rod, so that the card block can be engaged with the installation groove in the electronic device.

[0010] As a preferred embodiment, the thermally conductive silicone sheet body comprises, from top to bottom, a release paper, a thermally conductive mud layer, a thermally conductive reinforcement layer and a thermally conductive silicone layer.

[0011] By adopting the above technical solution, it is convenient to combine the various laminated layers into a thermally conductive silicone sheet body.

[0012] As a preferred implementation, each layer in the body of the thermally conductive silicone sheet is bonded to each other, and a plurality of thermally conductive rods are inserted between the thermally conductive silicone layer and the thermally conductive enhancement layer.

[0013] By adopting the above technical solution and setting the heat-conducting rod, the heat-conducting speed of the heat-conducting silicone sheet body can be accelerated.

[0014] As a preferred implementation, the thermal conductive mud layer is made of silicone resin, and the thermal conductive enhancement layer is made of graphene nanomaterial.

[0015] By adopting the above technical solution and providing a thermal conductivity enhancement layer of graphene nanomaterial, the thermal conductivity of the thermally conductive silicone sheet body can be further improved.

[0016] As a preferred implementation, one end of the bidirectional screw rod extends to the outside of the mounting frame and is fixedly connected with a knob.

[0017] By adopting the above technical solution, the bidirectional screw rod can be driven to rotate.

[0018] Compared with the prior art, the advantages and positive effects of the utility model are:

[0019] 1. In the utility model, by using the magnetic plate and the iron plate in combination, the connection strength between two adjacent thermally conductive silicone sheet bodies can be strengthened, so that the thermally conductive silicone sheet body is relatively stable during use and is not prone to wrinkling and loosening. By using the above structure, a large thermally conductive silicone sheet can be divided into small pieces. In this way, the internal tension of the large thermally conductive silicone sheet can be reduced, and then the excessive deformation of each laminated structure can be reduced, thereby ensuring the thermal conductivity effect of the thermally conductive silicone sheet body.

[0020] 2. In the present invention, the card block can be driven to slide in the corresponding slide groove by rotating the bidirectional screw rod, so that the card block can be engaged with the installation groove in the electronic device, thereby facilitating the disassembly and installation of the thermal conductive silicone sheet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall stereogram of the utility model;

[0022] Figure 2 It is a bottom view of the utility model;

[0023] Figure 3 This is a schematic diagram of the main structure of the thermal conductive silicone sheet of the utility model;

[0024] Figure 4 For this utility model Figure 2 Enlarged view of point A in the middle.

[0025] Legend: 1. Installation frame; 2. Thermal conductive silicone sheet body; 3. Semicircular groove; 4. Socket; 5. Iron plate; 6. Plug rod; 7. Slide groove; 8. Bidirectional screw rod; 9. Block; 10. Magnetic plate; 11. Snap-in groove; 12. Snap-in hole; 13. Release paper; 14. Thermal conductive mud layer; 15. Thermal conductive enhancement layer; 16. Thermal conductive silicone layer; 17. Thermal conductive rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0027] Reference Figure 1-4 A thermally conductive silicone sheet comprises a mounting frame 1, the inner wall of the mounting frame 1 is fixedly connected with a plurality of thermally conductive silicone sheet bodies 2, a semicircular groove 3 is provided inside two adjacent thermally conductive silicone sheet bodies 2, a plug hole 4 is provided inside the thermally conductive silicone sheet body 2 and below the semicircular groove 3, an iron plate 5 is clamped between the four semicircular grooves 3, the bottom ends of the iron plates 5 are fixedly connected with a plug rod 6 used in conjunction with the plug hole 4, a clamping groove 11 is provided between the bottom ends of the plurality of thermally conductive silicone sheet bodies 2, a magnetic plate 10 is clamped inside the clamping groove 11, four clamping holes 12 are provided inside the magnetic plate 10, the plug rod 6 is clamped with the plug hole 4 and the clamping hole 12, and a replacement mechanism is provided on both sides of the mounting frame 1.

[0028] When in use, the four semicircular grooves 3 can be combined into a full-circular groove, and the iron plate 5 can be snapped into the corresponding full-circular groove. At this time, the insertion rod 6 at the bottom of the iron plate 5 will be inserted into the inside of the insertion hole 4 and the snap-in hole 12, and the magnetic plate 10 will be snap-in with the snap-in groove 11. By using the magnetic plate 10 and the iron plate 5 in coordination, the connection strength between two adjacent thermally conductive silicone sheet bodies 2 can be strengthened, so that the thermally conductive silicone sheet body 2 is relatively stable during use and is not prone to wrinkling and loosening. By using the above structure, a large thermally conductive silicone sheet can be divided into small pieces. In this way, the internal tension of the large thermally conductive silicone sheet can be reduced, and then the excessive deformation of each laminated structure can be reduced, thereby ensuring the thermal conductivity effect of the thermally conductive silicone sheet body 2.

[0029] Reference Figure 1 The replacement mechanism includes slide grooves 7 provided on both sides of the mounting frame 1, the interior of the slide grooves 7 are rotatably connected with bidirectional screw rods 8, both ends of the outer sides of the bidirectional screw rods 8 are threadedly connected with clamping blocks 9, and the clamping blocks 9 are slidably connected with the inner walls of the corresponding slide grooves 7.

[0030] When in use, the rotation of the bidirectional screw rod 8 can drive the block 9 to slide in the corresponding slide groove 7, so that the block 9 can be engaged with the installation groove in the electronic device, thereby facilitating the disassembly and installation of the thermal conductive silicone sheet body 2.

[0031] Reference Figure 3 The thermally conductive silicone sheet body 2 includes a release paper 13, a thermally conductive mud layer 14, a thermally conductive reinforcing layer 15 and a thermally conductive silicone layer 16 from top to bottom, so as to facilitate combining the various layers into the thermally conductive silicone sheet body 2.

[0032] Reference Figure 3 The layers in the thermally conductive silicone sheet body 2 are bonded to each other, and a plurality of thermally conductive rods 17 are inserted between the thermally conductive silicone layer 16 and the thermally conductive enhancement layer 15. The arrangement of the thermally conductive rods 17 can accelerate the heat conduction speed of the thermally conductive silicone sheet body 2.

[0033] Reference Figure 3 The thermal conductive mud layer 14 is made of silicone resin, and the thermal conductive enhancement layer 15 is made of graphene nanomaterial. By setting the thermal conductive mud layer 14 made of silicone resin, the thermal conductive silicone sheet body 2 can have a certain thermal conductive performance, and by setting the thermal conductive enhancement layer 15 made of graphene nanomaterial, the thermal conductive performance of the thermal conductive silicone sheet body 2 can be further improved.

[0034] Reference Figure 1 One end of the bidirectional screw rod 8 extends to the outside of the mounting frame 1 and is fixedly connected with a knob to drive the bidirectional screw rod 8 to rotate.

[0035] Working principle: When in use, the four semicircular grooves 3 can be combined into a full-circle groove, and the iron plate 5 can be snapped into the corresponding full-circle groove. At this time, the plug rod 6 at the bottom of the iron plate 5 will be inserted into the inside of the plug hole 4 and the snap-in hole 12, and the magnetic plate 10 will be snapped into the snap-in groove 11. By using the magnetic plate 10 and the iron plate 5 in coordination, the connection strength between the two adjacent thermally conductive silicone sheet bodies 2 can be strengthened, so that the thermally conductive silicone sheet body 2 is relatively stable during use, and is not prone to wrinkling and loosening. By using the above structure, a large thermally conductive silicone sheet can be divided into small pieces. In this way, the internal friction of the large thermally conductive silicone sheet can be reduced. Tension can be generated, thereby reducing excessive deformation of each laminated structure, thereby ensuring the thermal conductivity of the thermally conductive silicone sheet body 2, and through the rotation of the bidirectional screw 8, the block 9 can be driven to slide in the corresponding slide groove 7, and then the block 9 can be connected with the installation groove in the electronic device, so as to facilitate the disassembly and installation of the thermally conductive silicone sheet body 2, and through the setting of the thermal conductive mud layer 14 of silicone resin material, the thermally conductive silicone sheet body 2 can have a certain thermal conductivity, and through the setting of the thermal conductive enhancement layer 15 of graphene nanomaterial, the thermal conductivity of the thermally conductive silicone sheet body 2 can be further improved.

[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A thermally conductive silicone sheet, comprising a mounting frame (1), characterized in that: The inner wall of the installation frame (1) is fixedly connected with a plurality of heat-conducting silicone sheet bodies (2), and a semicircular groove (3) is provided inside two adjacent heat-conducting silicone sheet bodies (2). A plug hole (4) is provided inside the heat-conducting silicone sheet body (2) and below the semicircular groove (3). An iron plate (5) is clamped between the four semicircular grooves (3), and a plug rod (6) used in conjunction with the plug hole (4) is fixedly connected at the bottom end of the iron plate (5). A clamping groove (11) is provided between the bottom ends of the plurality of heat-conducting silicone sheet bodies (2), and a magnetic plate (10) is clamped inside the clamping groove (11). Four clamping holes (12) are provided inside the magnetic plate (10), and the plug rod (6) is clamped with the plug hole (4) and the clamping hole (12). Replacement mechanisms are provided on both sides of the installation frame (1).

2. A thermally conductive silicone sheet according to claim 1, characterized in that: The replacement mechanism comprises slide grooves (7) both provided on both sides of the installation frame (1), the interior of the slide grooves (7) being rotatably connected to bidirectional screw rods (8), both ends of the outer sides of the bidirectional screw rods (8) being threadedly connected to clamping blocks (9), and the clamping blocks (9) being slidably connected to the inner walls of the corresponding slide grooves (7).

3. The thermally conductive silicone sheet according to claim 1, characterized in that: The thermally conductive silicone sheet body (2) comprises, from top to bottom, a release paper (13), a thermally conductive mud layer (14), a thermally conductive enhancement layer (15) and a thermally conductive silicone layer (16).

4. A thermally conductive silicone sheet according to claim 3, characterized in that: The various layers within the thermally conductive silicone sheet body (2) are bonded to each other, and a plurality of thermally conductive rods (17) are inserted between the thermally conductive silicone layer (16) and the thermally conductive enhancement layer (15).

5. The thermally conductive silicone sheet according to claim 3, characterized in that: The thermal conductive mud layer (14) is made of silicone resin, and the thermal conductive enhancement layer (15) is made of graphene nanomaterial.

6. The thermally conductive silicone sheet according to claim 2, characterized in that: One end of the bidirectional screw rod (8) extends to the outside of the installation frame (1) and is fixedly connected to a knob.

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