Heat dissipation mylar film

Abstract

The utility model discloses a heat dissipation mylar film, and relates to the technical field of mylar films. The Mylar film comprises a Mylar film body, the Mylar film body comprises an adhesive layer, a Mylar film base layer, a shielding layer and a heat dissipation layer which are connected in sequence, at least one fin is integrally formed on the Mylar film base layer, a plurality of through micropores are distributed in the Mylar film base layer, the shielding layer is adhered to the Mylar film base layer, the heat dissipation layer is a graphene heat dissipation film, and the Mylar film body is simple in structure and low in production cost; the heat conduction silica gel layer with good heat conduction performance is used as an adhesive, meanwhile, the mylar film base layer with micro-pores is convenient to diffuse heat to the outside, the heat dissipation layer serving as a protective layer adopts a graphene heat dissipation film, heat can be dissipated to the outside, and the heat dissipation effect is improved; and meanwhile, the fins are integrally formed on the mylar base layer, so that the mylar is convenient to lift when being dismounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to mylar technology field, concretely, it relates to a heat dissipation mylar. BACKGROUND

[0002] Mylar is a kind of PET polyester film, is widely used in electronic, household appliances, instrument, display, battery, computer and the gasket of periphery equipment, file, screen and protective effect, and can replace general adhesive tape, applicable to electronic components in the packaging of machine and is used for packing, so that electronic components are safer in use.

[0003] Mylar has developed various functional types of products since its development, such as insulation type, buffer type, wear-resistant type, sealing type, which can realize insulation, sealing, shielding effect, and mylar needs to be attached to the surface of product when using, while realizing the above effects, it also causes the heat generated by product to be not easy to dissipate, and the product is easily used for a long time to make temperature rise, which seriously damages the use effect and service life of product. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model aims at providing a heat dissipation mylar, which solves the problem of poor heat dissipation of mylar.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a heat dissipation mylar, comprising a mylar body, the mylar body comprises in sequence adhesive layer, mylar base layer, shielding layer and heat dissipation layer, the adhesive layer is adhered with a release film, the mylar base layer is integrally formed with at least one fin, the fin extends to one side from the mylar base layer, the length of the fin is 5-20mm, the mylar base layer is provided with a plurality of penetrating micropores, the shielding layer is adhered to the mylar base layer, and the heat dissipation layer is a graphene heat dissipation film.

[0006] The utility model is further provided as follows: the adhesive layer is evenly coated on one side of the mylar base layer away from the shielding layer, the thickness of the adhesive layer is 0.3-1.2mm, and the adhesive layer is a heat-conducting silica gel layer.

[0007] The utility model is further provided as follows: the shielding layer comprises a metal shielding layer and a double-sided adhesive layer, the double-sided adhesive layer is provided with at least two layers, the double-sided adhesive layers are arranged on the front surface and the back surface of the metal shielding layer respectively, and the metal shielding layer is adhered to the mylar base layer and the heat dissipation layer through the double-sided adhesive layers.

[0008] The utility model is further provided as follows: the metal wire or metal sheet contained in the metal shielding layer is an alloy of one or more of copper material, aluminum material and silver material, and the thickness of each double-sided adhesive layer is 0.05-0.5mm.

[0009] The present invention is further configured such that: the side of the heat dissipation layer facing away from the shielding layer is provided with a plurality of semi-circular protrusions, and the vertical height of the protrusions from the heat dissipation layer is 0.8-1.5mm.

[0010] The present invention is further configured such that: the protrusions are evenly distributed on the heat dissipation layer, the protrusions are graphene heat-conducting blocks, the protrusions are solid structures, and the diameter of the protrusions is 1-3mm.

[0011] In summary, this utility model has the following beneficial effects: the Mylar sheet body has a simple structure and low production cost; it uses a thermally conductive silicone layer with good thermal conductivity as an adhesive, and the Mylar sheet base layer with microporous structure facilitates the diffusion of heat to the outside; the heat dissipation layer as a protective layer uses a graphene heat dissipation film, which helps to dissipate heat to the outside and improves the heat dissipation effect; at the same time, the fins integrally formed on the Mylar sheet base layer facilitate the lifting when removing the Mylar sheet. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the Mylar sheet body of this utility model.

[0014] In the diagram: 1. Mylar sheet body; 2. Release film; 3. Adhesive layer; 4. Mylar sheet base layer; 5. Shielding layer; 6. Heat dissipation layer; 7. Fins; 8. Protrusions. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] like Figure 1 , Figure 2 As shown, this utility model discloses a heat dissipation Mylar sheet, including a Mylar sheet body 1. The Mylar sheet body 1 is formed by sequentially bonding a release film 2, an adhesive layer 3, a Mylar sheet base layer 4, a shielding layer 5, and a heat dissipation layer 6 using a composite equipment. The adhesive layer 3 is uniformly coated on the lower end surface of the Mylar sheet base layer 4, and the release film 2 is attached to the adhesive layer 3. The shielding layer 5 is adhered to the upper end surface of the Mylar sheet base layer 4, and the heat dissipation layer 6 is adhered to the upper end surface of the shielding layer 5. In use, the Mylar sheet body 1 is cut to the appropriate size according to the application scenario, and a fin 7 with a length of 5-20mm is reserved on one side of the Mylar sheet body 1. After peeling off the release film 2, the side with the adhesive layer 3 is attached to the corresponding position of the product. The Mylar sheet body 1 can achieve protection and shielding functions. When insulation performance is required for the Mylar sheet body 1, an insulating layer can also be added to the Mylar sheet body 1.

[0017] Specifically, such as Figure 2As shown, the release film 2, the adhesive layer 3, the mylar sheet base layer 4, the shielding layer 5 and the heat dissipation layer 6 in the mylar sheet body 1 are sequentially adhered from bottom to top, wherein the thickness of the adhesive layer 3 is set to 0.3-1.2mm, preferably the thickness of the adhesive layer 3 is 0.6mm, the heat-conductive silica gel is used as the adhesive layer 3, which not only can realize the adhesion to the object, but also has good heat conduction effect, so that the heat generated by the product can be quickly conducted through the adhesive layer 3 and pass through the mylar sheet base layer 4, and finally dissipated by the heat dissipation layer 6; the mylar sheet base layer 4 is provided with a plurality of uniformly distributed micropores, the micropores penetrate the mylar sheet base layer 4, and the heat can pass through; the shielding layer 5 is coated with double-sided adhesive layers on both sides, the double-sided adhesive layers are ultra-thin layers, the thickness of each double-sided adhesive layer is 0.05-0.5mm, and the shielding layer 5 is adhered to the mylar sheet base layer 4 and the heat dissipation layer 6 through the double-sided adhesive layers on both sides; the heat dissipation layer 6 adopts a graphene heat dissipation film, the graphene heat dissipation film has good heat conductivity and flexibility, and can realize good heat dissipation and protection, and the thickness of the graphene heat dissipation film is 30-50μm.

[0018] As shown in Figure 1 , Figure 2 shown, a plurality of protrusions 8 are further arranged on the side of the heat dissipation layer 6 away from the shielding layer 5, the protrusions 8 are uniformly distributed on the horizontal plane of the heat dissipation layer 6, the protrusions 8 are graphene heat-conducting blocks, the vertical height of the protrusions 8 from the heat dissipation layer 6 is 0.8-1.5mm, the diameter of the protrusions 8 is 1-3mm, the shape of the protrusions 8 is semicircular and solid, the protrusions 8 are adhered to the heat dissipation layer 6, the protrusions 8 made of graphene can conduct heat and play a supporting role, when the product with the mylar sheet has other objects or is in contact with other objects, the protrusions 8 can separate a gap between the heat dissipation film and the other objects, which is beneficial to the heat dissipation of the mylar sheet.

[0019] The preferred embodiments of the present application are described above, the protection scope of the present application is not limited to the above-mentioned embodiments, any technical solutions falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the technical field, some improvements and decorations without departing from the principles of the present application shall also be considered as the protection scope of the present application.

Claims

1. A heat dissipating mylar sheet comprising a mylar sheet body (1), characterized in that: The melamine sheet body (1) comprises, in sequence, a glue layer (3), a melamine sheet base layer (4), a shielding layer (5) and a heat dissipation layer (6), the glue layer is attached with a release film (2), the melamine sheet base layer (4) is integrally formed with at least one fin (7), the fin (7) extends to one side from the melamine sheet base layer (4), the length of the fin (7) is 5-20 mm, the melamine sheet base layer (4) is provided with a plurality of penetrating micropores, the shielding layer (5) is attached to the melamine sheet base layer (4), and the heat dissipation layer (6) is a graphene heat dissipation film.

2. The heat dissipating Mylar sheet according to claim 1, wherein: The glue layer (3) is uniformly coated on the side of the melamine sheet base layer (4) away from the shielding layer (5), the thickness of the glue layer (3) is 0.3-1.2 mm, and the glue layer (3) is a heat-conducting silica gel layer.

3. The heat dissipating Mylar sheet according to claim 2, wherein: The shielding layer (5) comprises a metal shielding layer (5) and a double-sided adhesive layer, the double-sided adhesive layer is provided with at least two layers, the two layers of the double-sided adhesive layer are arranged on the front side and the back side of the metal shielding layer (5) respectively, and the metal shielding layer (5) is attached to the melamine sheet base layer (4) and the heat dissipation layer (6) through the double-sided adhesive layer.

4. The heat dissipating Mylar sheet according to claim 3, wherein: The thickness of each double-sided adhesive layer is 0.05-0.5 mm.

5. The heat dissipating Mylar sheet according to claim 4, wherein: The side of the heat dissipation layer (6) away from the shielding layer (5) is provided with a plurality of semicircular protrusions (8), and the vertical height of the protrusion (8) from the heat dissipation layer (6) is 0.8-1.5 mm.

6. The heat dissipating Mylar sheet according to claim 5, wherein: The protrusions (8) are uniformly distributed on the heat dissipation layer (6), the protrusions (8) are graphene heat-conducting blocks, the protrusions (8) are solid structures, and the diameter of the protrusions (8) is 1-3 mm.

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