Heat-conducting insulating sheet with low thermal resistance

Abstract

The utility model discloses a heat-conducting insulating sheet with low thermal resistance, which relates to the technical field of heat-conducting silica gel insulating sheets and comprises a silica gel insulating sheet and a radiating plate. A wave-shaped groove is formed in the bottom of the silica gel insulation sheet, a protrusion attached to the wave-shaped groove is integrally formed on the top of the heat dissipation plate, heat dissipation fins are evenly arranged at the bottom of the heat dissipation plate, and mounting blocks are arranged on the periphery of the heat dissipation plate; the bottoms of the two sides of the silica gel insulation sheet are both provided with convex edges, the wavy grooves are formed in the silica gel insulation sheet, the protrusions matched with the wavy grooves are arranged on the heat dissipation plate, the heat conduction area of the silica gel insulation sheet can be increased, and then the efficiency of transferring heat to the heat dissipation plate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat conducting silica gel insulating sheet technical field, concretely to a low thermal resistance heat conducting insulating sheet. BACKGROUND

[0002] Thermal resistance refers to the ratio between the temperature difference of the object and the power of the heat source when heat is transmitted on the object, and low thermal resistance simply means that the speed of heat transfer is fast, and the heat conducting insulating sheet refers to the heat conducting silica gel sheet, which is a kind of heat conducting medium material synthesized by adding metal oxides and various auxiliary materials to silica gel as a base material, and has the advantages of low thermal resistance, insulation, shock absorption and sealing.

[0003] The main purpose of selecting the heat conducting silica gel sheet is to reduce the contact thermal resistance between the surface of the heat source and the contact surface of the heat dissipation device, and when in use, the heat conducting silica gel sheet of different thickness is cut according to the size and gap height of the heating interface, and is placed in the gap between the heating interface and the component to play the role of heat conducting medium.

[0004] At present, the low thermal resistance heat conducting insulating sheet is cut according to the size of the heating interface, which leads to fixed heat conducting area and further results in the problem of low heat transfer efficiency to the heat sink, therefore, the low thermal resistance heat conducting insulating sheet is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a low thermal resistance heat conducting insulating sheet to solve the problems in the background art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a low thermal resistance heat conducting insulating sheet, comprising a silica gel insulating sheet and a heat dissipation plate.

[0007] The bottom of the silica gel insulating sheet is provided with a wave-shaped groove, and the top of the heat dissipation plate is integrally formed with a protrusion matched with the wave-shaped groove, the bottom of the heat dissipation plate is uniformly provided with heat dissipation fins, and the periphery of the heat dissipation plate is provided with mounting blocks.

[0008] The bottom of the silica gel insulating sheet is provided with a protruding edge, and the top of the heat dissipation plate is provided with a fixing assembly for fixing the protruding edge.

[0009] As a preferred scheme of the low thermal resistance heat conducting insulating sheet, the front and rear sides of the protrusion are aligned with the front and rear sides of the silica gel insulating sheet, and the inside of the protrusion is provided with a through hole.

[0010] As a preferred scheme of the low thermal resistance heat conducting insulating sheet, a heat dissipation frame is arranged in the through hole.

[0011] As a preferred scheme of the low-thermal-resistance heat-conducting insulating sheet, the fixing assembly comprises a mounting rod arranged on the heat dissipation plate, a liftable pressing rod is arranged on the mounting rod, and the bottom of the pressing rod is pressed on the convex edge.

[0012] As a preferred scheme of the low-thermal-resistance heat-conducting insulating sheet, the mounting rod is in an inverted L-shaped structure, a screw rod is screwed on the horizontal end of the mounting rod, and the bottom of the screw rod is connected with the pressing rod through a bearing.

[0013] As a preferred scheme of the low-thermal-resistance heat-conducting insulating sheet, a knob is arranged on the top of the screw rod.

[0014] As a preferred scheme of the low-thermal-resistance heat-conducting insulating sheet, a through groove is arranged on the vertical section of the mounting rod, and a sliding rod connected with the pressing rod is slidingly connected to the through groove.

[0015] Compared with the prior art, the low-thermal-resistance heat-conducting insulating sheet has the following beneficial effects:

[0016] 1. The wave-shaped groove is arranged on the silica gel insulating sheet, the convex is arranged on the heat dissipation plate and matched with the wave-shaped groove, the heat conduction area of the silica gel insulating sheet is increased, and the heat transfer efficiency to the heat dissipation plate is improved.

[0017] 2. The through hole is arranged in the convex, the heat dissipation area of the heat dissipation plate is increased, the heat dissipation frame is arranged, the heat dissipation area is further increased, and the heat dissipation efficiency is improved.

[0018] 3. The convex edge and the fixing assembly are arranged, and the silica gel insulating sheet can be quickly fixed on the heat dissipation plate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a whole structure schematic view of the low-thermal-resistance heat-conducting insulating sheet.

[0020] Fig. 2 It is a local structure plane schematic view of the low-thermal-resistance heat-conducting insulating sheet.

[0021] Fig. 3 It is an enlarged schematic view of the fixing assembly structure of the low-thermal-resistance heat-conducting insulating sheet.

[0022] In the figure, 1 is a silica gel insulating sheet, 2 is a heat dissipation plate, 3 is a wave-shaped groove, 4 is a convex, 5 is a heat dissipation fin, 6 is a through hole, 7 is a heat dissipation frame, 8 is a convex edge, 9 is a mounting rod, 10 is a screw rod, 11 is a knob, 12 is a pressing rod, 13 is a through groove, 14 is a sliding rod, and 15 is a mounting block. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] As mentioned in the background, the heat transfer efficiency in the prior art is not high. The utility model provides a low-thermal-resistance heat-conducting insulation sheet.

[0025] Embodiment 1

[0026] With reference to Figs. 1-3 A low-thermal-resistance heat-conducting insulation sheet, comprising a silica gel insulation sheet 1 and a heat sink 2.

[0027] The bottom of the silica gel insulation sheet 1 is provided with a wave-shaped groove 3, and the top of the heat sink 2 is integrally formed with a protrusion 4 matched with the wave-shaped groove 3. The protrusion 4 is made of the same material as the heat sink 2. The bottom of the heat sink 2 is uniformly provided with heat dissipation fins 5. The periphery of the heat sink 2 is provided with mounting blocks 15 for fixing the heat sink 2.

[0028] The wave-shaped groove 3 enlarges the heat-conducting area of the silica gel insulation sheet 1. The protrusion 4 matched with the wave-shaped groove 3 is arranged on the heat sink 2, which can increase the heat-conducting area of the silica gel insulation sheet 1, thereby improving the heat transfer efficiency to the heat sink 2.

[0029] The bottom of the silica gel insulation sheet 1 is provided with a protrusion 8, and the top of the heat sink 2 is provided with a fixing assembly for fixing the protrusion 8.

[0030] The front and rear sides of the protrusion 4 are aligned with the front and rear sides of the silica gel insulation sheet 1. A through hole 6 is arranged in the protrusion 4, so that the heat in the through hole 6 can be dissipated without obstruction. The through hole 6 arranged in the protrusion 4 increases the heat dissipation area of the heat sink 2.

[0031] A heat dissipation frame 7 is arranged in the through hole 6, which further increases the heat dissipation area and improves the heat dissipation efficiency.

[0032] The fixing assembly comprises a mounting rod 9 arranged on the heat sink 2. A lifting pressure rod 12 is arranged on the mounting rod 9. The bottom of the pressure rod 12 is pressed on the protrusion 8. The mounting rod 9 is in an inverted L-shaped structure. A screw rod 10 is screwed on the horizontal end of the mounting rod 9. The bottom of the screw rod 10 is connected with the pressure rod 12 through a bearing.

[0033] In order to rotate the screw rod 10, a knob 11 is arranged on the top of the screw rod 10.

[0034] Embodiment 2

[0035] With reference to Figs. 1-3 In order to guide the pressing rod 12, a through slot 13 is arranged on the vertical section of the mounting rod 9, and a sliding rod 14 connected with the pressing rod 12 is slidingly connected on the through slot 13.

[0036] The rest of the structure is the same as that of Embodiment 1.

[0037] After the silica gel insulation sheet 1 is placed on the heat dissipation plate 2 and the wave-shaped groove 3 is aligned with the protrusion 4, the knob 11 is rotated to press the protruding edge 8 by the pressing rod 12, then the top of the silica gel insulation sheet 1 is bonded and attached on the heating element, and finally the heat dissipation plate 2 is fixed through the mounting block 15.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A low thermal resistance thermally conductive insulating sheet, characterized in that: include, Silicone insulating sheet (1) and heat sink (2); The bottom of the silicone insulating sheet (1) is provided with a wavy groove (3), and the top of the heat sink (2) is integrally formed with a protrusion (4) that fits the wavy groove (3). Heat sink fins (5) are evenly arranged at the bottom of the heat sink (2), and mounting blocks (15) are arranged around the heat sink (2). The silicone insulating sheet (1) has protruding edges (8) on both sides of its bottom, and the heat sink (2) has fixing components for fixing the protruding edges (8) on both sides of its top.

2. The low thermal resistance thermally conductive insulating sheet according to claim 1, characterized in that: The front and rear sides of the protrusion (4) are aligned with the front and rear sides of the silicone insulating sheet (1), and the protrusion (4) has a through hole (6) inside.

3. The low thermal resistance thermally conductive insulating sheet according to claim 2, characterized in that: A heat sink (7) is provided inside the through hole (6).

4. The low thermal resistance thermally conductive insulating sheet according to claim 1, characterized in that: The fixing assembly includes a mounting rod (9) disposed on the heat sink (2), and a liftable pressure rod (12) is disposed on the mounting rod (9), the bottom of the pressure rod (12) being pressed against the protruding edge (8).

5. The low thermal resistance thermally conductive insulating sheet according to claim 4, characterized in that: The mounting rod (9) has an inverted L-shaped structure, and a screw rod (10) is screwed onto the horizontal end of the mounting rod (9). The bottom of the screw rod (10) is connected to the pressure rod (12) through a bearing.

6. The low thermal resistance thermally conductive insulating sheet according to claim 5, characterized in that: A knob (11) is provided on the top of the screw (10).

7. The low thermal resistance thermally conductive insulating sheet according to claim 5, characterized in that: A through groove (13) is provided on the vertical section of the mounting rod (9), and a slide rod (14) connected to the pressure rod (12) is slidably connected to the through groove (13).

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