Capacitor BOPP film

Abstract

The capacitor BOPP thin film comprises a base layer, an anti-aging layer, an anti-static layer, a heat insulation layer, a heat conduction layer and a wear-resistant layer are sequentially arranged outside the base layer, the anti-aging layer, the anti-static layer, the heat insulation layer, the heat conduction layer and the wear-resistant layer are symmetrically distributed relative to the two sides of the base layer, and a plurality of protruding edge parts are arranged on the side, close to the wear-resistant layer, of the heat conduction layer. Groove parts are formed between the adjacent rib parts, and a plurality of heat conduction particles are evenly distributed in the heat conduction layer. According to the utility model, the heat conduction layer can improve the heat conduction performance of the whole film, so that the heat generated during the working of the electrodes can be timely conducted out, the accumulation of the heat on the electrodes is reduced, the working stability of the electrodes is further maintained, and the heat insulation layer can effectively prevent the heat exchange interference between the two electrodes. Therefore, the working stability of the two electrodes is maintained, and the service life of the capacitor is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to capacitor film technical field especially a capacitor BOPP film. BACKGROUND

[0002] BOPP film has excellent electrical and mechanical properties, and is an insulating material widely used in capacitors, especially suitable for the manufacture of capacitors, and mainly plays the role of dielectric in capacitors. It is an insulating layer between two electrodes in a capacitor, used for storing electric charge and forming an electric field between the two electrodes.

[0003] However, the existing BOPP film has poor heat conduction performance, and when it is placed between two electrodes, it is difficult to timely discharge the heat generated by the electrodes, resulting in long-term accumulation of heat on the electrodes, affecting the working stability, and further affecting the service life of the capacitor.

[0004] Therefore, we propose a capacitor BOPP film to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a capacitor BOPP film to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A capacitor BOPP film, comprising a base layer, an anti-aging layer, an anti-static layer, a heat insulation layer, a heat conduction layer and a wear-resistant layer are sequentially arranged outside the base layer, and the anti-aging layer, the anti-static layer, the heat insulation layer, the heat conduction layer and the wear-resistant layer are symmetrically distributed about the two sides of the base layer, the heat conduction layer is provided with a plurality of convex rib portions on one side close to the wear-resistant layer, and a groove portion is formed between adjacent convex rib portions, and a plurality of heat conduction particles are uniformly distributed inside the heat conduction layer.

[0008] In a further embodiment, the base layer is a PP film layer, and the thickness of the base layer is 40-60um.

[0009] In a further embodiment, the anti-aging layer is made of high-density polyethylene with an antioxidant, and the thickness of the anti-aging layer is 20-40um.

[0010] In a further embodiment, the anti-static layer is an anti-static PE film layer, and the thickness of the anti-static layer is 10-20um.

[0011] In a further embodiment, the heat insulation layer is made of polyethylene terephthalate copolymer, and the thickness of the heat insulation layer is 10-20um.

[0012] In a further embodiment, the material of the heat-conducting layer is polyurethane, and the thickness of the heat-conducting layer is 20-40um.

[0013] In a further embodiment, the heat-conducting particles are graphene particles.

[0014] In a further embodiment, the material of the wear-resistant layer is epoxy resin, and the thickness of the wear-resistant layer is 20-40um.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] The heat-conducting layer can improve the heat-conducting performance of the entire film, so as to timely conduct the heat generated during the operation of the electrodes, reduce the accumulation of heat on the electrodes, and thus maintain the stability of the operation of the electrodes. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a sectional structure schematic view of the present application;

[0018] Figure 2 is the present application Figure 1 is a local enlarged structure schematic view of A in the present application;

[0019] Figure 3 is a sectional structure schematic view of the heat-conducting layer of the present application.

[0020] In the figure: 1, base layer; 2, anti-aging layer; 3, anti-static layer; 4, heat-insulating layer; 5, heat-conducting layer; 51, convex rib part; 52, groove part; 53, heat-conducting particle; 6, wear-resistant layer. DETAILED DESCRIPTION

[0021] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0022] In the description of the utility model, it is necessary to explain that, unless there are definite provisions and limitations, the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be mechanical connection, also can be electrical connection, it can be directly connected, also can be indirectly connected through intermediate medium, it can be the communication inside two elements, for ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1-3 A kind of capacitive BOPP film, including base layer 1, base layer 1 is PP film layer, and the thickness of base layer 1 is 40-60um, the outer upper and lower surface of base layer 1 is all glued with anti-aging layer 2, two anti-aging layer 2 are wrapped to base layer 1, the material of anti-aging layer 2 is high-density polyethylene added antioxidant, and the thickness of anti-aging layer 2 is 20-40um, for improving the anti-aging ability of entire film, the outer surface of anti-aging layer 2 is glued with anti-static layer 3, anti-static layer 3 is anti-static PE film layer, and the thickness of anti-static layer 3 is 10-20um, for improving the antistatic effect of entire film.

[0025] The outer surface of anti-static layer 3 is glued with heat insulation layer 4, the material of heat insulation layer 4 is polyethylene terephthalate copolymer, and the thickness of heat insulation layer 4 is 10-20um, for improving the heat insulation effect of film, to prevent heat exchange between two electrodes, the outer surface of heat insulation layer 4 is glued with heat conduction layer 5, the material of heat conduction layer 5 is polyurethane, and the thickness of heat conduction layer 5 is 20-40um, a plurality of heat conduction particles 53 are uniformly distributed in heat conduction layer 5, heat conduction particles 53 are graphene particles, to enhance the heat conduction effect of entire film, facilitate the heat generated by electrode to be exported in time.

[0026] The outer surface of heat conduction layer 5 is glued with wear-resistant layer 6, the material of wear-resistant layer 6 is epoxy resin, and the thickness of wear-resistant layer 6 is 20-40um, wear-resistant layer 6 protects heat conduction layer 5, is conducive to reducing the damage of heat conduction layer 5 when using, the side of heat conduction layer 5 close to wear-resistant layer 6 is provided with a plurality of convex rib parts 51, and recessed groove parts 52 are formed between adjacent convex rib parts 51, so as to increase the contact area between the two, is conducive to improving the adhesion and heat conduction efficiency.

[0027] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0028] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A capacitive BOPP film comprising a base layer (1), characterized in that: The base layer (1) is sequentially provided with an anti-aging layer (2), an anti-static layer (3), a heat insulation layer (4), a heat conduction layer (5) and a wear-resistant layer (6), and the anti-aging layer (2), the anti-static layer (3), the heat insulation layer (4), the heat conduction layer (5) and the wear-resistant layer (6) are symmetrically distributed on both sides of the base layer (1), the heat conduction layer (5) is provided with a plurality of convex rib portions (51) on the side close to the wear-resistant layer (6), and the adjacent convex rib portions (51) form a groove portion (52) therebetween, and the heat conduction layer (5) is further uniformly provided with a plurality of heat conduction particles (53) therein.

2. A capacitive BOPP film according to claim 1, characterized in that: The base layer (1) is a PP film layer, and the thickness of the base layer (1) is 40-60um.

3. A capacitive BOPP film according to claim 1, characterized in that: The material of the anti-aging layer (2) is high-density polyethylene added with an antioxidant, and the thickness of the anti-aging layer (2) is 20-40um.

4. A capacitive BOPP film according to claim 1, characterized in that: The anti-static layer (3) is an anti-static PE film layer, and the thickness of the anti-static layer (3) is 10-20um.

5. A capacitive BOPP film as claimed in claim 1, wherein: The material of the heat insulation layer (4) is polyethylene terephthalate copolymer, and the thickness of the heat insulation layer (4) is 10-20um.

6. A capacitive BOPP film according to claim 1, characterized in that: The material of the heat conduction layer (5) is polyurethane, and the thickness of the heat conduction layer (5) is 20-40um.

7. A capacitive BOPP film according to claim 1, characterized in that: The heat conduction particles (53) are graphene particles.

8. A capacitive BOPP film according to claim 1, characterized in that: The material of the wear-resistant layer (6) is epoxy resin, and the thickness of the wear-resistant layer (6) is 20-40um.

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