High-elasticity heat-conducting silica gel sheet

Abstract

The utility model relates to a high-elasticity heat-conducting silica gel sheet, which belongs to the technical field of heat-conducting silica gel sheets and comprises a heat-conducting silica gel sheet body, a CPU (central processing unit) board is adhered to the bottom end of the heat-conducting silica gel sheet body, a fixing cylinder is arranged at the top end of the heat-conducting silica gel sheet body, and corner frames are arranged at four corners of the heat-conducting silica gel sheet body. The heat-conducting silica gel sheet has the beneficial effects that the threaded plate can be driven to slide in the corner frame and the straight frame respectively by screwing the threaded rod, so that the threaded plate can descend to extrude the heat-conducting silica gel sheet body, the heat-conducting silica gel sheet body can be attached to a CPU board, corners are firmly adhered, and the heat-conducting silica gel sheet is not easy to deform. And through arrangement of the replacement mechanism, the fixing cylinder can have two attaching forms, the heat conduction silica gel sheet body can be attached to the corners of the CPU board, the outer side of the CPU board can be attached, a worker can adjust the forms of the attaching structures according to actual attaching requirements, and the practicability is better.

Description

Technical Field

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

[0002] High-elasticity thermally conductive silicone sheet is a type of heat transfer interface material with the advantages of excellent thermal conductivity, good insulation, and excellent fire resistance. Currently, the thermally conductive silicone sheet used for CPU heat dissipation is usually installed by bonding, but the bonding method has poor firmness and gaps are easily formed on the bonding surface due to uneven bonding, resulting in poor thermal conductivity.

[0003] After searching, a Chinese patent discloses a high-elasticity thermally conductive silicone sheet (authorization announcement number CN213343127U), including a copper plate and a silicone sheet body, a plug block is fixedly installed at the center position of the lower end of the copper plate, the silicone sheet body is installed on the lower side of the copper plate through a connecting mechanism, a screw is vertically installed on the upper end of the copper plate through a bearing, and a knob is fixedly installed on the upper end of the screw, a screw sleeve is sleeved on the screw, and the screw sleeve is fixedly installed inside the sleeve block, support rods are equidistantly welded laterally on the sleeve block, and a guide rod is vertically welded at the lower end of the support rod away from the sleeve block. Although this patented technology can be achieved by setting a copper plate, when the knob is turned, the knob will drive the copper plate to move downward through the threaded action with the screw sleeve, so that the copper plate can squeeze the silicone sheet body downward, so that the silicone sheet body can fit the CPU without excessive gaps, and the fit is higher than that of the bonding method.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that the copper plate is driven downward by the threaded action with the screw sleeve, so that the copper plate can squeeze the silicone sheet body downward, so that the silicone sheet body can fit the CPU. However, the above can only squeeze the outer side of the thermally conductive silicone sheet, while its corners are relatively loose. During installation, the thermal conductivity may be poor due to loose adhesion of the corners. In addition, the length of the support rod is fixed, and the fitting structure cannot be adjusted according to the size of the CPU. Utility Model Content

[0005] In view of the problems in the prior art: the above-mentioned thermally conductive silicone sheet can only be squeezed on the outside, while its corners are relatively loose. During installation, the thermal conductivity may be poor due to loose adhesion of the corners, and the length of the support rod is fixed, and the fitting structure cannot be adjusted according to the size of the CPU. The main purpose of the utility model is to provide a high-elasticity thermally conductive silicone sheet.

[0006] The technical solution of the utility model is as follows: a high-elasticity thermally conductive silicone sheet, comprising a thermally conductive silicone sheet body, a CPU board bonded to the bottom end of the thermally conductive silicone sheet body, a fixing tube arranged at the top end of the thermally conductive silicone sheet body, corner frames arranged at the four corners of the thermally conductive silicone sheet body, a straight frame arranged at the outside of the thermally conductive silicone sheet body, threaded rods threadedly connected to the inside of the straight frame and the corner frame, threaded plates slidably connected to the inner walls of the straight frame and the corner frame, the bottom ends of the threaded rods extend to the inside of the straight frame and the corner frame and are rotatably connected to the corresponding threaded plates, an adjustment mechanism is arranged at the outside of the fixing tube, and a replacement mechanism is arranged at the top of the corner frame and the straight frame.

[0007] By adopting the above technical solution, by twisting the threaded rod, the threaded plate can be driven to slide inside the corner frame and the straight frame respectively, so that the threaded plate can be lowered to squeeze the thermal conductive silicone sheet body, so that the thermal conductive silicone sheet body and the CPU board can be fitted, making the corners more firmly bonded and improving the thermal conductivity efficiency.

[0008] As a preferred embodiment, the adjustment mechanism includes a limit plate fixedly installed around the fixed cylinder, the interior of the limit plate is slidably connected with a telescopic plate, and the interior of the limit plate is equidistantly provided with positioning holes, one of the positioning holes is internally threadedly connected with a fixing bolt, and the bottom end of the fixing bolt is in conflict with the outer side of the telescopic plate.

[0009] By adopting the above technical solution, through the coordinated use of the telescopic plate and the limit plate, the length of the triangular plate can be adjusted according to the size of the thermal conductive silicone sheet body and the CPU board, and thus the thermal conductive silicone sheet body and CPU board of different sizes can be fitted.

[0010] As a preferred embodiment, the replacement mechanism includes triangular grooves opened at the top of the straight frame and the corner frame, the end of the telescopic plate away from the limiting plate is fixedly connected to a triangular plate, the bottom end of the triangular plate is fixedly connected to a magnetic block, and the inner wall of the triangular groove is embedded with an iron block.

[0011] By adopting the above technical solution, through the coordinated use of magnetic blocks and iron blocks, the staff can fix the triangle plate to the corner frame and the straight frame respectively according to the actual fitting requirements.

[0012] As a preferred embodiment, soft pads are provided between the threaded plate and the inner walls of the corner frame and the straight frame.

[0013] By adopting the above technical solution, it is possible to avoid the threaded plate from damaging the CPU board.

[0014] As a preferred implementation, the top end of the threaded rod is fixedly connected with an adjusting knob.

[0015] By adopting the above technical solution, the threaded rod can be driven to rotate.

[0016] As a preferred implementation, the thermally conductive silicone sheet body is mainly composed of silicone.

[0017] By adopting the above technical solution, the thermally conductive silicone sheet body has high elasticity.

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

[0019] 1. In the utility model, by twisting the threaded rod, the threaded plate can be driven to slide inside the corner frame and the straight frame respectively, so that the threaded plate can be lowered to squeeze the thermally conductive silicone sheet body, so that the thermally conductive silicone sheet body and the CPU board can be fitted, so that the corners are more firmly bonded and the heat conduction efficiency is improved. By setting the replacement mechanism, the fixing cylinder can have two fitting forms, which can not only fit the corners of the thermally conductive silicone sheet body and the CPU board, but also fit the outside thereof. The staff can adjust the form of the fitting structure according to the actual fitting needs, which is more practical.

[0020] 2. In the utility model, by using the telescopic plate in conjunction with the limit plate, the length of the triangular plate can be adjusted according to the size of the thermally conductive silicone sheet body and the CPU board, so that the thermally conductive silicone sheet body and the CPU board of different sizes can be fitted, and the position of the telescopic plate can be adjusted by fixing bolts for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall three-dimensional diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the replacement mechanism structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the fixed cylinder structure of the utility model;

[0024] Figure 4 For this utility model Figure 1 Enlarged view of point A in the middle.

[0025] Legend: 1. Thermal conductive silicone sheet body; 2. CPU board; 3. Corner frame; 4. Straight frame; 5. Fixing tube; 6. Fixing bolt; 7. Limiting plate; 8. Telescopic plate; 9. Triangular plate; 10. Threaded rod; 11. Magnetic block; 12. Triangular groove; 13. Iron block; 14. Threaded plate; 15. Positioning hole. 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 high-elasticity thermally conductive silicone sheet comprises a thermally conductive silicone sheet body 1, a CPU board 2 is bonded to the bottom end of the thermally conductive silicone sheet body 1, a fixing tube 5 is arranged at the top end of the thermally conductive silicone sheet body 1, corner frames 3 are arranged at the four corners of the thermally conductive silicone sheet body 1, a straight frame 4 is arranged on the outside of the thermally conductive silicone sheet body 1, a threaded rod 10 is threadedly connected to the inside of the straight frame 4 and the corner frame 3, a threaded plate 14 is slidably connected to the inner wall of the straight frame 4 and the corner frame 3, the bottom ends of the threaded rod 10 extend to the inside of the straight frame 4 and the corner frame 3 and are rotatably connected to the corresponding threaded plate 14, an adjustment mechanism is arranged on the outside of the fixing tube 5, and a replacement mechanism is arranged on the top of the corner frame 3 and the straight frame 4.

[0028] When in use, by twisting the threaded rod 10, the threaded plate 14 can be driven to slide inside the corner frame 3 and the straight frame 4 respectively, so that the threaded plate 14 can be lowered to squeeze the thermal conductive silicone sheet body 1, so that the thermal conductive silicone sheet body 1 and the CPU board 2 can be fitted together, so that the corners are more firmly bonded and the heat conduction efficiency is improved. By setting the replacement mechanism, the fixing tube 5 can have two fitting forms, which can not only fit the corners of the thermal conductive silicone sheet body 1 and the CPU board 2, but also fit the outside thereof. The staff can adjust the form of the fitting structure according to the actual fitting requirements, which is more practical.

[0029] Reference Figure 1 The adjustment mechanism includes a limit plate 7 fixedly installed around the fixed cylinder 5, and the inside of the limit plate 7 is slidably connected to the telescopic plate 8. The inside of the limit plate 7 is equidistantly provided with positioning holes 15, and the internal thread of one of the positioning holes 15 is connected to a fixing bolt 6, and the bottom end of the fixing bolt 6 is in conflict with the outer side of the telescopic plate 8.

[0030] When in use, by using the telescopic plate 8 in conjunction with the limit plate 7, the length of the triangular plate 9 can be adjusted according to the size of the thermal conductive silicone sheet body 1 and the CPU board 2, so that the thermal conductive silicone sheet body 1 and the CPU board 2 of different sizes can be fitted together, and the position of the telescopic plate 8 can be adjusted by the fixing bolt 6 for easy use.

[0031] Reference Figure 2The replacement mechanism includes a triangular groove 12 opened at the top of the straight frame 4 and the corner frame 3, the end of the telescopic plate 8 away from the limiting plate 7 is fixedly connected to the triangular plate 9, the bottom end of the triangular plate 9 is fixedly connected to the magnetic block 11, and the inner wall of the triangular groove 12 is embedded with an iron block 13.

[0032] When in use, by using the magnetic block 11 in conjunction with the iron block 13 , the staff can fix the triangular plate 9 to the corner frame 3 and the straight frame 4 respectively according to actual fitting requirements, so as to improve the practicability of the device.

[0033] Reference Figure 1 Soft pads are provided between the threaded plate 14 and the inner walls of the corner frame 3 and the straight frame 4 to prevent the threaded plate 14 from damaging the CPU board 2.

[0034] Reference Figure 2 The top end of the threaded rod 10 is fixedly connected with an adjusting knob to drive the threaded rod 10 to rotate.

[0035] Reference Figure 1 The thermally conductive silicone sheet body 1 is mainly composed of silicone components, so that the thermally conductive silicone sheet body 1 has high elasticity.

[0036] Working principle: First, by using the telescopic plate 8 in conjunction with the limit plate 7, the length of the triangular plate 9 can be adjusted according to the size of the thermally conductive silicone sheet body 1 and the CPU board 2, so that the thermally conductive silicone sheet body 1 and the CPU board 2 of different sizes can be fitted, and the position of the telescopic plate 8 can be adjusted by the fixing bolt 6 for easy use, and by twisting the threaded rod 10, the threaded plate 14 can be driven to slide inside the corner frame 3 and the straight frame 4 respectively, so that the threaded plate 14 can be lowered to squeeze the thermally conductive silicone sheet body 1, so that the thermally conductive silicone sheet body 1 and the CPU board 2 can be fitted, so that the corners are more firmly bonded and the heat conduction efficiency is improved, and by using the magnetic block 11 and the iron block 13 in conjunction, the staff can fix the triangular plate 9 to the corner frame 3 and the straight frame 4 respectively according to the actual fitting requirements, not only can the corners of the thermally conductive silicone sheet body 1 and the CPU board 2 be fitted, but also the outside thereof can be fitted, and the staff can adjust the shape of the fitting structure according to the actual fitting requirements, which is more practical.

[0037] The above are only preferred embodiments of the present application and are 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 high-elasticity thermally conductive silicone sheet, comprising a thermally conductive silicone sheet body (1), characterized in that: The CPU board (2) is bonded to the bottom end of the thermally conductive silicone sheet body (1), a fixing tube (5) is arranged at the top end of the thermally conductive silicone sheet body (1), corner frames (3) are arranged at the four corners of the thermally conductive silicone sheet body (1), a straight frame (4) is arranged on the outside of the thermally conductive silicone sheet body (1), a threaded rod (10) is threadedly connected to the inside of the straight frame (4) and the corner frame (3), a threaded plate (14) is slidably connected to the inner wall of the straight frame (4) and the corner frame (3), the bottom end of the threaded rod (10) extends to the inside of the straight frame (4) and the corner frame (3) and is rotatably connected to the corresponding threaded plate (14), an adjustment mechanism is arranged on the outside of the fixing tube (5), and a replacement mechanism is arranged on the top end of the corner frame (3) and the straight frame (4).

2. The high elasticity thermally conductive silicone sheet according to claim 1, characterized in that: The adjustment mechanism comprises a limit plate (7) fixedly mounted on the periphery of the fixed cylinder (5), the limit plates (7) are slidably connected to the inside of the limit plates (7), positioning holes (15) are equidistantly provided inside the limit plates (7), a fixing bolt (6) is threadedly connected to the inside of one of the positioning holes (15), and the bottom end of the fixing bolt (6) is in contact with the outer side of the telescopic plate (8).

3. The high elasticity thermally conductive silicone sheet according to claim 2, characterized in that: The replacement mechanism comprises a triangular groove (12) formed at the top of the straight frame (4) and the corner frame (3); one end of the telescopic plate (8) away from the limiting plate (7) is fixedly connected to a triangular plate (9); the bottom end of the triangular plate (9) is fixedly connected to a magnetic block (11); and the inner wall of the triangular groove (12) is embedded with an iron block (13).

4. The high elasticity thermally conductive silicone sheet according to claim 1, characterized in that: Soft pads are provided between the threaded plate (14) and the inner walls of the corner frame (3) and the straight frame (4).

5. The high elasticity thermally conductive silicone sheet according to claim 1, characterized in that: The top end of the threaded rod (10) is fixedly connected with an adjusting knob.

6. The high elasticity thermally conductive silicone sheet according to claim 1, characterized in that: The thermally conductive silicone sheet body (1) is mainly composed of silicone.

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