Buffering heat dissipation adhesive tape

Abstract

The utility model discloses a buffering heat dissipation adhesive tape. Comprising a graphite layer, a first acrylic acid adhesive layer bonded to the upper end face of the graphite layer, a second acrylic acid adhesive layer bonded to the lower end face of the graphite layer, a first metal layer bonded to the upper end face of the first acrylic acid adhesive layer and a second metal layer bonded to the lower end face of the second acrylic acid adhesive layer. The heat radiation layer is arranged on the upper end face of the first metal layer in a coating mode, the buffer layer is arranged on the lower end face of the second metal layer in a bonding mode, and the heat radiation layer is formed by evenly dispersing black color paste composed of nanoscale carbon black in polyester resin. The LED lamp has the advantages that the heat radiation layer is used for heat radiation, and the second metal layer provides heat radiation support for the product and structural support and buffer for the whole product and simultaneously bears the second acrylic acid adhesive layer and the buffer layer. Graphite is covered through the combined action of the first acrylic acid adhesive layer and the second acrylic acid adhesive layer, and powder falling of the graphite is prevented. The graphite layer is matched with the heat radiation layer for heat dissipation.

Description

Technical Field

[0001] The utility model relates to the field of heat dissipation tapes, in particular to a buffer heat dissipation tape. Background Art

[0002] At present, the foam used for cushioning and shock absorption in SCF is basically from foreign manufacturers. During the overall application process, the problem of stratification between the copper foil tape / PET / PI tape and the foam often occurs. In addition, the foam is a foam structure with a relatively thick overall thickness and poor thermal conductivity. Heat dissipation can basically only be solved by the metal substrate matched with the foam. With the advancement of the localization wave, and in order to effectively improve the heat dissipation effect of the product, a buffer heat dissipation tape product is developed to simplify and thin the product structure without affecting the overall cushioning effect, replacing the existing complex structure of copper foil + foam + mesh double-sided tape.

[0003] For example, the Chinese patent with publication number CN208292912U discloses a new metal foil double-sided graphene thermal conductive tape, whose layered structure is that with the metal foil layer as the center, a heat dissipation coating, a thermal conductive adhesive layer, a release coating, and a polyester film layer are sequentially arranged in the up and down directions; the heat dissipation coating is composed of nano-scale graphene powder evenly dispersed in polyester resin; the thermal conductive adhesive layer is composed of nano-scale silicon carbide powder evenly dispersed in acrylic resin. The release coating described in the utility model is one of a silicon release agent coating or a fluorine release agent coating; the metal foil layer is one of a copper foil or an aluminum foil. The above-mentioned new metal foil double-sided graphene thermal conductive tape greatly improves the heat dissipation performance through the contact between the thermal conductive adhesive layer and the heat dissipation coating, and the contact between the heat dissipation coating and the metal foil layer, and the heat dissipation effect is better. The double-sided thermal conductive tape has nearly double the thermal conductivity effect.

[0004] In view of this, it is necessary to provide a buffer heat dissipation tape. Summary of the invention

[0005] The utility model provides a buffer heat dissipation adhesive tape, which effectively solves the problems of complex structure and poor heat conduction effect of the existing adhesive tape.

[0006] The technical solution adopted by the utility model is

[0007] A buffer heat dissipation tape comprises a graphite layer, a first acrylic adhesive layer bonded to the upper end surface of the graphite layer, a second acrylic adhesive layer bonded to the lower end surface of the graphite layer, a first metal layer bonded to the upper end surface of the first acrylic adhesive layer, a second metal layer bonded to the lower end surface of the second acrylic adhesive layer, a heat radiation layer coated on the upper end surface of the first metal layer, and a buffer layer bonded to the lower end surface of the second metal layer, wherein the heat radiation layer is composed of a black color paste composed of nano-scale carbon black uniformly dispersed in a polyester resin, and the buffer layer is silica gel or acrylic acid.

[0008] Furthermore, the thickness of the heat radiation layer is in the range of 0.003 mm to 0.01 mm.

[0009] Furthermore, the thickness of the first metal layer ranges from 0.018 mm to 0.035 mm, and the thickness of the second metal layer ranges from 0.009 mm to 0.025 mm.

[0010] Furthermore, the thickness of the first acrylic adhesive layer and the second acrylic adhesive layer are both in the range of 0.005 mm to 0.01 mm.

[0011] Furthermore, the thickness of the buffer layer is in the range of 0.05 mm to 0.15 mm.

[0012] Beneficial effects of the utility model: heat is dissipated through the heat radiation layer, the No. 1 metal layer is bonded to the graphite layer through the No. 1 acrylic adhesive layer, the No. 2 metal layer is bonded to the graphite layer through the No. 2 acrylic adhesive layer, the No. 2 metal layer provides heat dissipation support for the product and structural support and buffering for the overall product, while taking over the No. 2 acrylic adhesive layer and the buffer layer. The No. 1 acrylic adhesive layer and the No. 2 acrylic adhesive layer work together to cover the graphite to prevent the graphite from falling off. The thermal conductivity of the graphite layer can reach 1700W / (m*K), and the thickness is generally 0.025mm. Heat is dissipated through the graphite layer and the heat radiation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall schematic diagram of the buffer heat dissipation tape provided in an embodiment of the present application.

[0014] Markings in the figure are: 1, graphite layer; 2, No. 1 acrylic adhesive layer; 3, No. 2 acrylic adhesive layer; 4, No. 1 metal layer; 5, No. 2 metal layer; 6, buffer layer; 7, heat radiation layer. DETAILED DESCRIPTION

[0015] 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.

[0016] like Figure 1 As shown, a buffer heat dissipation tape provided in an embodiment of the present application includes a graphite layer 1, an acrylic adhesive layer 2 bonded to the upper end surface of the graphite layer 1, a second acrylic adhesive layer 3 bonded to the lower end surface of the graphite layer 1, a metal layer 4 bonded to the upper end surface of the acrylic adhesive layer 2, a second metal layer 5 bonded to the lower end surface of the second acrylic adhesive layer 3, a heat radiation layer 7 coated on the upper end surface of the metal layer 4, and a buffer layer 6 bonded to the lower end surface of the metal layer 5, wherein the heat radiation layer 7 is composed of a black color paste composed of nano-scale carbon black uniformly dispersed in a polyester resin, and the buffer layer 6 is silicone or acrylic.

[0017] In actual use, heat is dissipated through the heat radiation layer 7, the first metal layer 4 is bonded to the graphite layer 1 through the first acrylic adhesive layer 2, and the second metal layer 5 is bonded to the graphite layer 1 through the second acrylic adhesive layer 3. The second metal layer 5 provides heat dissipation support for the product and structural support and buffering for the overall product, while supporting the second acrylic adhesive layer 3 and the buffer layer 6. The first acrylic adhesive layer 2 and the second acrylic adhesive layer 3 work together to cover the graphite to prevent the graphite from falling off. The thermal conductivity of the graphite layer 1 can reach 1700W / (m*K), and the thickness is generally 0.025mm. Heat is dissipated through the graphite layer 1 in conjunction with the heat radiation layer 7.

[0018] In the above design, the product can be simplified while satisfying the overall buffering effect, and can ensure that the product has good thermal conductivity and heat dissipation effects.

[0019] Specifically, the thickness of the heat radiation layer 7 is in the range of 0.003 mm to 0.01 mm.

[0020] In the above design, the thickness range of the heat radiation layer 7 can meet the requirements of thinning the product and at the same time can meet the heat dissipation effect of the product.

[0021] Specifically, the thickness of the first metal layer 4 is in the range of 0.018 mm to 0.035 mm, and the thickness of the second metal layer 5 is in the range of 0.009 mm to 0.025 mm.

[0022] In the above design, heat is dissipated by the No. 1 metal layer 4 in cooperation with the graphite layer 1 and the heat radiation layer 7. The thickness range of the No. 1 metal layer 4 is 0.018mm~0.035mm, which can meet the requirements of thin products. The No. 2 metal layer 5 mainly plays a supporting role and undertakes the No. 2 acrylic adhesive layer 3 and the buffer layer 6. The thermal conductivity coefficient can reach 200W / (m*K), and further provides support and heat dissipation effects for the product. The thickness range of the No. 2 metal layer 5 is 0.009mm~0.025mm, which can meet the support strength.

[0023] Specifically, the thickness of the first acrylic adhesive layer 2 and the second acrylic adhesive layer 3 are both in the range of 0.005 mm to 0.01 mm.

[0024] In the above design, the first acrylic adhesive layer and the second acrylic adhesive layer 3 are respectively arranged on the upper end surface and the lower end surface of the graphite layer 1, which can prevent the graphite layer 1 from falling off. The thickness range of the first acrylic adhesive layer 2 and the second acrylic adhesive layer 3 is 0.005mm-0.01mm, which can meet the adhesion and make the product thinner.

[0025] Specifically, the thickness of the buffer layer 6 is in the range of 0.05 mm to 0.15 mm.

[0026] In the above design, when the thickness of the buffer layer 6 is in the range of 0.05 mm to 0.15 mm, the buffer effect can achieve an impact absorption rate of >40%.

[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 buffer heat dissipation tape, Features: The invention comprises a graphite layer (1), a first acrylic adhesive layer (2) bonded to the upper end surface of the graphite layer (1), a second acrylic adhesive layer (3) bonded to the lower end surface of the graphite layer (1), a first metal layer (4) bonded to the upper end surface of the first acrylic adhesive layer (2), a second metal layer (5) bonded to the lower end surface of the second acrylic adhesive layer (3), a heat radiation layer (7) coated on the upper end surface of the first metal layer (4), and a buffer layer (6) bonded to the lower end surface of the second metal layer (5), wherein the heat radiation layer (7) is composed of a black color paste composed of nano-scale carbon black uniformly dispersed in a polyester resin, and the buffer layer (6) is silica gel or acrylic acid.

2. The buffer heat dissipation tape according to claim 1, Features: The thickness of the heat radiation layer (7) is in the range of 0.003 mm to 0.01 mm.

3. The buffer heat dissipation tape according to claim 1, Features: The thickness of the first metal layer (4) ranges from 0.018 mm to 0.035 mm, and the thickness of the second metal layer (5) ranges from 0.009 mm to 0.025 mm.

4. The buffer heat dissipation tape according to claim 1, Features: The thickness of the first acrylic adhesive layer (2) and the second acrylic adhesive layer (3) are both in the range of 0.005 mm to 0.01 mm.

5. The buffer heat dissipation tape according to claim 1, Features: The thickness of the buffer layer (6) ranges from 0.05 mm to 0.15 mm.

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