Heat conduction silica gel sheet with high heat conduction efficiency

Abstract

The utility model relates to a heat-conducting silica gel sheet with high heat-conducting efficiency, and aims to solve the technical problem that the application cost of heat-conducting silica gel is relatively high because the price difference of heat-conducting silica gel sheets made of different materials is relatively large because the heat-conducting efficiency is mainly adjusted according to different materials when the current heat-conducting silica gel sheet is actually used. Comprising a heat conduction assembly and a heat exchange assembly arranged on the heat conduction assembly, the heat conduction assembly comprises an upper heat conduction paste and a lower heat conduction paste arranged at the bottom of the upper heat conduction paste, and net-shaped heat exchange grooves are formed in the opposite faces of the upper heat conduction paste and the lower heat conduction paste; the upper heat-conducting paste and the lower heat-conducting paste are arranged in parallel, the opposite surfaces of the upper heat-conducting paste and the lower heat-conducting paste are respectively provided with an array convex surface through a net-shaped heat exchange groove, the array convex surfaces are used for air to flow, and the heat exchange assembly comprises frame-shaped heat dissipation layers arranged on the four side surfaces of the upper heat-conducting paste. The efficient heat conduction effect is achieved, and then the application cost of the heat conduction silica gel is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thermally conductive silicone rubber, in particular to a thermally conductive silicone rubber sheet with high thermal conductivity efficiency. Background Art

[0002] Thermally conductive silicone refers to a type of silicone that is formed by adding specific conductive fillers to silicone rubber. This type of glue generally includes thermally conductive silicone adhesives, thermally conductive silicone potting materials, and thermally conductive silicone sheets and pads that have been vulcanized into a certain shape. The thermal conductivity coefficients of different thermally conductive silicones vary greatly. The cost price difference is also very large (but if insulation is not required, the production cost can be greatly reduced and a very high thermal conductivity coefficient can be achieved. Ordinary thermally conductive silicones are added with aluminum oxide, etc., and high thermally conductive silicones are added with thermally conductive substances such as boron nitride. Manufacturers of thermally conductive silicone adhesives or potting materials can generally produce different thermal conductivities, curing speeds, viscosities, colors, hardness, etc. as needed, and manufacturers of thermally conductive silicone sheets can generally produce products of different shapes as needed.

[0003] The current thermal conductive silicone sheets can be widely set on the contact surface between the heating elements (power tubes, thyristors, electric heating piles, etc.) and the heat dissipation facilities (heat sinks, heat dissipation strips, shells, etc.) in various electronic products and electrical equipment, acting as a heat transfer medium and having moisture-proof, dust-proof, corrosion-proof, and shock-proof properties.

[0004] In the prior art, the thermal conductivity of the thermally conductive silicone sheet is mainly adjusted by the different materials during actual use. However, due to the large price difference of thermally conductive silicone sheets made of different materials, the application cost of the thermally conductive silicone is relatively high. In view of this, we propose a thermally conductive silicone sheet with high thermal conductivity efficiency. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, meet actual needs, and provide a thermally conductive silicone sheet with high thermal conductivity efficiency to solve the technical problem that the thermal conductivity of the current thermally conductive silicone sheet is mainly adjusted by the difference in materials when it is actually used, but the price difference of thermally conductive silicone sheets of different materials is large, which makes the application cost of thermally conductive silicone high.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a heat-conducting silicone sheet with high heat-conducting efficiency, including a heat-conducting component and a heat-exchanging component arranged on the heat-conducting component;

[0007] The heat-conducting assembly comprises an upper heat-conducting paste and a lower heat-conducting paste arranged at the bottom of the upper heat-conducting paste, and the upper heat-conducting paste and the lower heat-conducting paste are provided with mesh heat exchange grooves on the opposite back sides thereof, and the upper heat-conducting paste and the lower heat-conducting paste are provided with array convex surfaces for gas flow through the mesh heat exchange grooves on the opposite back sides thereof;

[0008] The heat exchange component includes a frame-shaped heat dissipation layer arranged on the four sides of the upper thermal conductive paste, and a plurality of heat exchange channels are equidistantly opened on the four sides of the frame-shaped heat dissipation layer, and a through groove connected to the corresponding mesh heat exchange groove is centrally opened at the top and bottom of one side of the heat exchange channel.

[0009] Preferably, a plurality of adhesive layers are bonded equidistantly to a side of the lower thermally conductive paste away from the upper thermally conductive paste, and a release paper layer is bonded to the bottom ends of the plurality of adhesive layers.

[0010] Preferably, the four sides of the upper thermal conductive paste and the lower thermal conductive paste are centrally constructed with positioning ridges, and the tops and bottoms of the four sides of the frame-shaped heat dissipation layer are provided with positioning grooves, and the positioning ridges are fixed in the corresponding positioning grooves.

[0011] Preferably, the upper thermal conductive paste and the lower thermal conductive paste are both rectangular block structures, and the upper thermal conductive paste and the lower thermal conductive paste are both made of silicone rubber added with conductive fillers.

[0012] Preferably, the two mesh heat exchange grooves cooperate with a plurality of heat exchange channels with two through grooves to achieve the flow of gas.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model can achieve heat conduction for two devices by using an upper heat conductive paste and a lower heat conductive paste with mesh heat exchange grooves to cooperate with a frame-shaped heat dissipation layer with multiple heat exchange channels. During the heat conduction process, affected by the heat dissipation equipment, the airflow will circulate in the two mesh heat exchange grooves and multiple heat exchange channels with two through grooves, thereby improving the thermal conductivity of the thermally conductive silicone sheet on the basis of improving the heat dissipation effect, achieving the effect of high-efficiency heat conduction, and then reducing the application cost of the thermally conductive silicone.

[0015] 2. The utility model realizes the positioning setting of the frame-shaped heat dissipation layer by means of multiple positioning convex strips arranged on the upper thermal conductive paste and the lower thermal conductive paste cooperating with the frame-shaped heat dissipation layer with multiple positioning grooves therein, and by making the positioning convex strips press into the corresponding positioning grooves, the upper thermal conductive paste and the lower thermal conductive paste are fixedly connected to the frame-shaped heat dissipation layer, thereby improving the stability of the setting of the frame-shaped heat dissipation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model in a disassembled state;

[0018] Figure 3 It is a structural schematic diagram of the heat exchange component in the utility model;

[0019] Figure 4 It is a partial structural sectional view of the utility model;

[0020] In the figure: 1. heat-conducting component; 101. upper heat-conducting paste; 102. lower heat-conducting paste; 103. mesh heat-exchange groove; 104. positioning convex strip; 105. adhesive layer; 106. release paper layer; 2. heat-exchange component; 201. frame-shaped heat dissipation layer; 202. heat-exchange channel. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Example 1: A thermally conductive silicone sheet with high thermal conductivity, see Figure 1 , comprising a heat conducting component 1 and a heat exchanging component 2 arranged on the heat conducting component 1;

[0023] Further, in order to improve the thermal conductivity of the thermally conductive silicone sheet on the basis of improving the heat dissipation effect, so as to reduce the application cost of the thermally conductive silicone, see Figure 1 , Figure 2 , Figure 3 , Figure 4 The heat-conducting component 1 comprises an upper heat-conducting paste 101 and a lower heat-conducting paste 102 arranged at the bottom of the upper heat-conducting paste 101, and the upper heat-conducting paste 101 and the lower heat-conducting paste 102 have mesh heat-exchange grooves 103 on their opposite sides, and the upper heat-conducting paste 101 and the lower heat-conducting paste 102 have array convex surfaces for gas flow formed by the mesh heat-exchange grooves 103. The heat-exchange component 2 comprises a frame-shaped heat-dissipating layer 201 arranged on four sides of the upper heat-conducting paste 101, and the four sides of the frame-shaped heat-dissipating layer 201 are equidistantly provided with a plurality of heat-exchange channels 202, and the top and bottom of one side of the heat-exchange channel 202 are centrally provided with a heat exchange channel corresponding to the mesh heat exchange grooves. The through grooves of the heat groove 103, the two mesh heat exchange grooves 103 cooperate with a plurality of heat exchange channels 202 with two through grooves to realize the flow of gas. The upper thermal conductive paste 101 and the lower thermal conductive paste 102 with the mesh heat exchange grooves 103 cooperate with the frame-shaped heat dissipation layer 201 with a plurality of heat exchange channels 202 to realize the heat conduction of the two devices. During the heat conduction process, affected by the heat dissipation equipment, the airflow will circulate in the two mesh heat exchange grooves 103 and the plurality of heat exchange channels 202 with two through grooves, thereby improving the thermal conductivity efficiency of the thermally conductive silicone sheet on the basis of improving the heat dissipation effect, achieving the effect of high-efficiency heat conduction, and thereby reducing the application cost of the thermally conductive silicone.

[0024] Furthermore, in order to improve the stability of the frame-shaped heat dissipation layer 201, see Figure 2 , Figure 3 , Figure 4The lower thermal conductive paste 102 is bonded with multiple groups of adhesive layers 105 at equal distances on one side away from the upper thermal conductive paste 101, and the bottom ends of the multiple groups of adhesive layers 105 are bonded with a release paper layer 106. The upper thermal conductive paste 101 and the lower thermal conductive paste 102 are centrally constructed with positioning convex strips 104 on the four sides, and the top and bottom of the four sides of the frame-shaped heat dissipation layer 201 are provided with positioning grooves, and the positioning convex strips 104 are fixedly arranged in the corresponding positioning grooves. The upper thermal conductive paste 101 and the lower thermal conductive paste 102 are both rectangular block structures. The upper thermal conductive paste 101 and the lower thermal conductive paste 102 are both made of silicone rubber with conductive fillers added thereto. The positioning setting of the frame-shaped heat dissipation layer 201 is realized by cooperating with the frame-shaped heat dissipation layer 201 with multiple positioning grooves provided therein through the multiple positioning ridges 104 provided on the upper thermal conductive paste 101 and the lower thermal conductive paste 102. By making the positioning ridges 104 press into the corresponding positioning grooves, the upper thermal conductive paste 101 and the lower thermal conductive paste 102 are fixedly connected to the frame-shaped heat dissipation layer 201, thereby improving the stability of the setting of the frame-shaped heat dissipation layer 201.

[0025] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A thermally conductive silicone sheet with high thermal conductivity, characterized in that: It comprises a heat conducting component (1) and a heat exchanging component (2) arranged on the heat conducting component (1); The heat-conducting component (1) comprises an upper heat-conducting paste (101) and a lower heat-conducting paste (102) arranged at the bottom of the upper heat-conducting paste (101), and mesh heat-exchange grooves (103) are provided on opposite sides of the upper heat-conducting paste (101) and the lower heat-conducting paste (102), and array convex surfaces for gas flow are formed on opposite sides of the upper heat-conducting paste (101) and the lower heat-conducting paste (102) through the mesh heat-exchange grooves (103); The heat exchange component (2) comprises a frame-shaped heat dissipation layer (201) arranged on four sides of the upper heat conductive paste (101), a plurality of heat exchange channels (202) are equidistantly provided on the four sides of the frame-shaped heat dissipation layer (201), and a through groove connected to the corresponding mesh heat exchange groove (103) is centrally provided at the top and bottom of one side of the heat exchange channel (202).

2. The thermally conductive silicone sheet with high thermal conductivity as claimed in claim 1, characterized in that: A plurality of groups of adhesive layers (105) are bonded at equal distances to a side of the lower thermal conductive paste (102) away from the upper thermal conductive paste (101), and a release paper layer (106) is bonded to the bottom ends of the plurality of groups of adhesive layers (105).

3. The thermally conductive silicone sheet with high thermal conductivity as claimed in claim 1, characterized in that: The upper thermal conductive pad (101) and the lower thermal conductive pad (102) are centrally provided with positioning convex strips (104), and the tops and bottoms of the four sides of the frame-shaped heat dissipation layer (201) are provided with positioning grooves, and the positioning convex strips (104) are fixedly arranged in the corresponding positioning grooves.

4. The thermally conductive silicone sheet with high thermal conductivity as claimed in claim 1, characterized in that: The upper thermal conductive paste (101) and the lower thermal conductive paste (102) are both rectangular block structures, and the upper thermal conductive paste (101) and the lower thermal conductive paste (102) are both made of silicone rubber added with conductive fillers.

5. The thermally conductive silicone sheet with high thermal conductivity as claimed in claim 1, characterized in that: The two mesh heat exchange grooves (103) cooperate with a plurality of heat exchange channels (202) each having two through grooves to achieve gas flow.

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