Low-volatility wrapped graphite heat dissipation silica gel adhesive tape

Abstract

The utility model discloses a low-volatility wrapped graphite heat dissipation silica gel adhesive tape. Comprising rectangular foaming silica gel, a low-volatility transparent PET double-faced adhesive tape layer, a graphite sheet and a low-volatility matte black PET adhesive tape layer, wherein one adhesive surface of the low-volatility transparent PET double-faced adhesive tape layer is coated and adhered with four sides of the rectangular foaming silica gel; the graphite sheet is adhered with the other adhesive surface of the low-volatility transparent PET double-faced adhesive tape layer; the low-volatility matte black PET adhesive tape layer is adhered to one side, far away from the low-volatility transparent PET double-faced adhesive tape layer, of the graphite sheet; the back adhesive low-volatility copper foil double-sided adhesive layer is adhered and coated on one side of the low-volatility matte black PET adhesive tape layer, which is far away from the graphite flakes, and the graphite flakes correspond to four sides of the foaming silica gel. And the gum low-volatility copper foil double-sided adhesive layer corresponds to one side of the rectangular foaming silica gel. The advantages are that the back adhesive low-volatility copper foil double-sided adhesive layer is bonded with the laser radar, the graphite is used for heat dissipation, and the foaming silica gel is used for buffering and damping. The graphite flakes on the four sides are wrapped and fixed through the low-volatility matte black PET adhesive tape layers, and the graphite flakes are prevented from loosening. And the graphite flake is connected with the foaming silica gel through the low-volatility transparent PET double-sided adhesive layer.

Description

Technical Field

[0001] The utility model relates to the field of adhesive tapes, in particular to a low-volatile wrapped graphite heat dissipation silicone adhesive tape. Background Art

[0002] With the continuous development of science and technology, more and more machines in our lives are developing towards automation and intelligence. As an indispensable means of transportation in people's lives, cars are becoming more and more intelligent and powerful. LiDAR can obtain the distance and speed of environmental features when scanning the scene, and is one of the indispensable sensors for intelligent driving systems. The LiDAR system generates heat during operation. In order to disperse the heat in time and not affect the normal operation of the LiDAR components, the LiDAR needs to be cooled by heat dissipation tape. However, in actual applications, it is found that the LiDAR generates high temperatures during use, causing the heat dissipation tape to produce volatiles that affect the accuracy of the LiDAR, and it is easily damaged when it is vibrated.

[0003] In view of this, it is necessary to provide a low-volatile wrapped graphite heat dissipation silicone tape. Summary of the invention

[0004] The utility model provides a low-volatile wrapped graphite heat dissipation silicone tape, which effectively solves the problem that the existing laser radar heat dissipation tape is easy to produce volatiles and has poor shock absorption effect.

[0005] The technical solution adopted by the utility model is:

[0006] A low-volatile wrapped graphite heat dissipation silicone tape comprises a rectangular foamed silicone, a low-volatile transparent PET double-sided adhesive layer with one adhesive surface covering and bonding the four sides of the rectangular foamed silicone, a graphite sheet bonded to the other adhesive surface of the low-volatile transparent PET double-sided adhesive layer, a low-volatile matte black PET tape layer bonded to the side of the graphite sheet away from the low-volatile transparent PET double-sided adhesive layer, and a low-volatile copper foil double-sided adhesive layer bonded and covering the side of the low-volatile matte black PET tape layer away from the graphite sheet, wherein the graphite sheet corresponds to the four sides of the foamed silicone. The low-volatile copper foil double-sided adhesive layer corresponds to one side of the rectangular foamed silicone.

[0007] Furthermore, the thickness of the low-volatile matte black PET tape layer is in the range of 0.020 mm to 0.040 mm.

[0008] Furthermore, the thickness of the graphite sheet is in the range of 0.017 mm to 0.07 mm.

[0009] Furthermore, the thickness of the low-volatile transparent PET double-sided adhesive layer ranges from 0.04 mm to 0.08 mm.

[0010] Furthermore, the thickness of the double-sided adhesive layer of the low-volatile copper foil is in the range of 0.05 mm to 0.07 mm.

[0011] Beneficial effects of the utility model: The low-volatile copper foil double-sided adhesive layer is used to bond with the laser radar, and then the heat is dissipated through graphite, and the foamed silicone is used for buffering and shock absorption. The graphite sheet on four sides is coated and fixed by a low-volatile matte black PET tape layer to prevent the graphite sheet from loosening. The graphite sheet is connected to the foamed silicone through a low-volatile transparent PET double-sided adhesive layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an overall schematic diagram of the low-volatile wrapped graphite heat dissipation silicone tape provided in an embodiment of the present application.

[0013] The markings in the figure are: 1. Rectangular foamed silicone; 2. Low-volatile transparent PET double-sided adhesive layer; 3. Graphite sheet; 4. Low-volatile matte black PET tape layer; 5. Low-volatile copper foil double-sided adhesive layer; DETAILED DESCRIPTION

[0014] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 As shown, a low-volatile wrapped graphite heat dissipation silicone tape provided in an embodiment of the present application comprises a rectangular foamed silicone 1, a low-volatile transparent PET double-sided adhesive layer 2 with one adhesive surface covering and bonding the four sides of the rectangular foamed silicone 1, a graphite sheet 3 bonded to the other adhesive surface of the low-volatile transparent PET double-sided adhesive layer 2, a low-volatile matte black PET tape layer 4 bonded to the side of the graphite sheet 3 away from the low-volatile transparent PET double-sided adhesive layer 2, and a low-volatile copper foil double-sided adhesive layer 5 bonded and covered to the side of the low-volatile matte black PET tape layer 4 away from the graphite sheet 3, wherein the graphite sheet 3 corresponds to the four sides of the foamed silicone. The low-volatile copper foil double-sided adhesive layer 5 corresponds to one side of the rectangular foamed silicone 1.

[0016] The four sides of the rectangular foamed silicone 1 refer to the lower side, upper side, left side and right side when the lower side of the rectangular foamed silicone 1 is placed on the storage table. The low-volatile matte black PET tape layer 4, the low-volatile copper foil double-sided adhesive layer 5 and the low-volatile transparent PET double-sided adhesive layer 2 are placed in an aluminum heat transfer container during testing. 2 or 4 pieces of silicone (2 or 4 times the size of the use size) are placed in the aluminum heat transfer container, and heated at 130℃ / 48H. The haze value of the PC board and the glass board is less than 1, which is low volatility. One side of the low-volatile transparent PET double-sided adhesive layer 2 is a silicone layer, which is bonded to the foamed silicone; the other side is an acrylic adhesive layer, which is bonded to the graphite sheet 3.

[0017] In actual use, the double-sided adhesive layer 5 of low-volatile copper foil is bonded to the laser radar, and then the heat is dissipated by graphite, and the foamed silica gel is used for buffering and shock absorption. The low-volatile matte black PET tape layer 4 is used to cover and fix the graphite sheet 3 on the four sides to prevent the graphite sheet 3 from loosening. The graphite sheet 3 is connected to the foamed silica gel through the low-volatile transparent PET double-sided adhesive layer 2. The low-volatile matte black PET tape layer 4 includes a matte black coating, which has the properties of non-reflective, alcohol-proof and scratch-resistant, meeting the customer's use requirements. The double-sided adhesive layer 5 of low-volatile copper foil has excellent peeling force, and the peeling force of SUS304 board at room temperature is greater than 2000gf / 25mm, and there is no residual glue. And the holding force of SUS304 board at room temperature is greater than 72H with a weight of 1KG, and the holding force of SUS board at high temperature of 150℃ is greater than 48H with a weight of 1000g. The high viscosity and excellent holding force can ensure that the product does not deviate and fall off during application. The low-volatile matte black PET tape layer 4, the low-volatile transparent PET double-sided adhesive layer 2, and the low-volatile copper foil double-sided adhesive layer 5 all meet the low-volatile test requirements. The material size of 50mm*90mm is placed in an aluminum heat transfer container, and the haze value of the PC board and the glass board at 130℃ / 48H is less than 1.

[0018] In the above design, the entire tape has good heat dissipation performance and shock-absorbing and buffering effects, which can effectively dissipate heat and provide buffering protection for the laser radar. At the same time, the low-volatility matte black PET tape layer 4 and the low-volatility transparent PET double-sided adhesive layer 2 ensure the low-volatility effect, preventing the tape from producing volatiles at high temperatures, which affect the radar sensing effect.

[0019] Specifically, the thickness of the low-volatile matte black PET tape layer 4 is in the range of 0.020 mm to 0.040 mm.

[0020] In the above design, the thickness of the low-volatile matte black PET tape layer 4 can meet the requirement of thinning the product, and at the same time can cover and fix the graphite sheets 3 on the four sides.

[0021] Specifically, the thickness of the graphite sheet 3 is in the range of 0.017 mm to 0.07 mm.

[0022] In the above design, the thickness range of the graphite sheet 3 can meet the installation requirements of the use environment and ensure effective heat dissipation.

[0023] Specifically, the thickness of the low-volatile transparent PET double-sided adhesive layer 2 is in the range of 0.04 mm to 0.08 mm.

[0024] In the above design, the thickness range of the low-volatile transparent PET double-sided adhesive layer 2 can ensure the bonding strength between the graphite sheet 3 and the foamed silica gel.

[0025] Specifically, the thickness of the low-volatile copper foil double-sided adhesive layer 5 is in the range of 0.05 mm to 0.07 mm.

[0026] In the above design, the copper foil double-sided adhesive has excellent peeling force, and the peeling force of SUS304 board at room temperature is greater than 2000gf / 25mm, and there is no residual adhesive. The thickness range of the low-volatile copper foil double-sided adhesive layer is 0.05mm to 0.07mm, which can ensure the bonding strength between the laser radar and the adhesive tape of this application.

[0027] To further explain in detail, it should be understood that the above is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-volatile wrapped graphite heat dissipation silicone tape, characterized in that: The invention comprises a rectangular foamed silica gel (1), a low-volatile transparent PET double-sided adhesive layer (2) with one adhesive surface covering and bonding to four sides of the rectangular foamed silica gel (1), a graphite sheet (3) bonded to the other adhesive surface of the low-volatile transparent PET double-sided adhesive layer (2), a low-volatile matte black PET adhesive tape layer (4) bonded to the side of the graphite sheet (3) away from the low-volatile transparent PET double-sided adhesive layer (2), and a low-volatile copper foil double-sided adhesive layer (5) bonded to and covering the side of the low-volatile matte black PET adhesive tape layer (4) away from the graphite sheet (3), wherein the graphite sheet (3) corresponds to the four sides of the foamed silica gel, and the low-volatile copper foil double-sided adhesive layer (5) corresponds to one side of the rectangular foamed silica gel (1).

2. The low-volatile wrapped graphite heat dissipation silicone tape according to claim 1, characterized in that: The thickness of the low-volatile matte black PET tape layer (4) is in the range of 0.020 mm to 0.040 mm.

3. The low-volatile wrapped graphite heat dissipation silicone tape according to claim 1, characterized in that: The thickness of the graphite sheet (3) ranges from 0.017 mm to 0.07 mm.

4. The low-volatile wrapped graphite heat dissipation silicone tape according to claim 1, characterized in that: The thickness of the low-volatile transparent PET double-sided adhesive layer (2) is in the range of 0.04 mm to 0.08 mm.

5. The low-volatile wrapped graphite heat dissipation silicone tape according to claim 1, characterized in that: The thickness of the low-volatile copper foil double-sided adhesive layer (5) is in the range of 0.05 mm to 0.07 mm.

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