Single-electrode anti-aging capacitor film

Abstract

The utility model discloses a single-electrode anti-aging capacitor film, which comprises a film base layer and a metal coating, the metal coating is arranged in the middle of the surface of one side of the film base layer, the surface of the other side of the film base layer is provided with an anti-aging layer, and a plurality of ultraviolet-proof particles are distributed in the anti-aging layer. Heat conduction glue layers are arranged on the film base layer and located on the two sides of the metal coating, heat collection strips and heat dissipation strips are embedded in the heat conduction glue layers, the two edges of the anti-aging layer protrude upwards to form edge sealing parts, and the edge sealing parts cover the outer edges of the heat conduction glue layers. Oxidation and ultraviolet radiation in the external environment are effectively resisted through the anti-aging layer, so that the anti-aging effect of the film base layer is enhanced, meanwhile, the heat dissipation effect of the capacitor film is enhanced through the arrangement of the heat-conducting glue layer, the heat collection strips and the heat dissipation strips, heat accumulation in the capacitor film is reduced, aging of the capacitor film is further slowed down, and the service life of the capacitor film is prolonged. And the service life of the capacitor film is prolonged, so that the use safety and stability of the capacitor are maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to a single-electrode anti-aging capacitor film. Background Art

[0002] Single-electrode capacitors are electrical components formed by using capacitor film using a non-inductive winding method. Current capacitor films mainly use plastic film as the dielectric and metal coating as the electrode, and are usually a composite structure of plastic film and metal coating.

[0003] However, the film substrate of existing capacitor films will accelerate its aging as the working time increases and the internal temperature rises. The flexibility of the aged film substrate decreases, and it may even cause electrode deformation, resulting in a sharp decline in the stability of the capacitor and affecting its safe use.

[0004] To this end, we propose a single-electrode anti-aging capacitor film to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a single-electrode anti-aging capacitor film to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A single-electrode anti-aging capacitor film includes a thin film base and a metal coating, wherein the metal coating is arranged in the middle of one side surface of the thin film base, and the other side surface of the thin film base is provided with an anti-aging layer, wherein a plurality of anti-ultraviolet particles are distributed in the anti-aging layer, and a thermal conductive adhesive layer is provided on both sides of the metal coating on the thin film base, and a heat collecting strip and a heat dissipating strip are embedded in the thermal conductive adhesive layer, and the two edges of the anti-aging layer are raised upward to form a sealing edge, and the sealing edge covers the outer edge of the thermal conductive adhesive layer.

[0008] In a further embodiment, the anti-ultraviolet particles are staggered in the anti-aging layer.

[0009] In a further embodiment, the thickness of the metal coating gradually decreases from the two edges to the middle, so as to form an arc-shaped recessed portion in the middle of the metal coating.

[0010] In a further embodiment, the thickness of the anti-aging layer gradually increases from the two edges to the middle, so as to form an arc-shaped convex portion in the middle of the anti-aging layer, and the convex portion is consistent with the curvature of the concave portion.

[0011] In a further embodiment, the heat collecting strip is closely attached to the outer edge of the metal coating, and the heat collecting strip extends along the length direction of the metal coating.

[0012] In a further embodiment, the heat dissipation bar is parallel to the width direction of the metal coating, and one end of the heat dissipation bar is connected to the heat collecting bar, and the other end passes through the edge sealing portion.

[0013] In a further embodiment, a plurality of heat dissipation strips are evenly distributed along the length direction of the heat collecting strip.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] In the utility model, an anti-aging layer is provided to wrap the film base layer, and the anti-aging layer is used to effectively resist oxidation and ultraviolet radiation in the external environment, thereby enhancing the anti-aging effect of the film base layer. At the same time, the heat dissipation effect of the capacitor film is enhanced by providing a thermal conductive adhesive layer, a heat collection strip and a heat dissipation strip, reducing heat accumulation inside, thereby further slowing down its aging, and increasing the service life of the capacitor film, thereby maintaining the safety and stability of the capacitor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the capacitor film when it is wound;

[0017] Figure 2 This is a schematic diagram of the partial structure of the capacitor film of the utility model;

[0018] Figure 3 This is a schematic diagram of the local structure of the anti-aging layer of the utility model.

[0019] In the figure: 1. Film base layer; 2. Metal plating layer; 21. Recessed portion; 3. Anti-aging layer; 31. Anti-ultraviolet particles; 32. Raised portion; 33. Edge sealing portion; 4. Thermal conductive adhesive layer; 5. Heat collecting strip; 6. Heat dissipation strip. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that terms such as "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-3 A single-electrode anti-aging capacitor film includes a thin film base 1 and a metal coating 2, wherein the metal coating 2 is arranged in the middle of one side surface of the thin film base 1, and the other side surface of the thin film base 1 is provided with an anti-aging layer 3, and a plurality of anti-ultraviolet particles 31 are distributed in the anti-aging layer 3. The anti-ultraviolet particles 31 are staggered in the anti-aging layer 3, effectively resisting oxidation and ultraviolet radiation in the external environment.

[0024] Furthermore, the thickness of the metal plating 2 gradually decreases from the two edges to the middle, so as to form an arc-shaped recessed portion 21 in the middle of the metal plating 2, so that the thickness on both sides is thicker and not easy to deform during winding. The thickness of the anti-aging layer 3 gradually increases from the two edges to the middle, so as to form an arc-shaped protrusion 32 in the middle of the anti-aging layer 3. The protrusion 32 matches the curvature of the recessed portion 21, so that when winding, the protrusion 32 and the recessed portion 21 are attached to each other to form mutual limitation, so that the capacitor film is not easy to be misplaced.

[0025] A thermally conductive adhesive layer 4 is provided on both sides of the metal coating 2 on the film base layer 1. The thermally conductive adhesive layer 4 can not only protect the side edges of the metal coating 2, but also accelerate the heat dissipation of the metal coating 2. The two edges of the anti-aging layer 3 bulge upward to form a sealing edge 33, and the sealing edge 33 covers the outer edge of the thermally conductive adhesive layer 4 to enhance the anti-aging effect of the edge and reduce its deformation.

[0026] Furthermore, heat collecting strips 5 and heat dissipating strips 6 are embedded in the thermal conductive adhesive layer 4, and the heat collecting strips 5 and heat dissipating strips 6 are used to accelerate the outward heat dissipation, thereby preventing overheating and accelerated aging. The heat collecting strips 5 are close to the outer edge of the metal coating 2, and the heat collecting strips 5 extend along the length direction of the metal coating 2, so as to quickly collect the heat of the metal coating 2, and the heat dissipating strips 6 are parallel to the width direction of the metal coating 2, and one end of the heat dissipating strip 6 is connected to the heat collecting strip 5, and the other end passes through the edge sealing portion 33. The outer end of the heat dissipating strip 6 is flush with the outer edge of the edge sealing portion 33, and there are several heat dissipating strips 6 distributed equidistantly along the length direction of the heat collecting strip 5, so as to utilize multiple heat dissipating strips 6 to dissipate the heat on the heat collecting strip 5 outward.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A single-electrode anti-aging capacitor film, comprising a thin film base layer (1) and a metal coating layer (2), characterized in that: The metal coating (2) is arranged in the middle of one side surface of the film base (1), and the other side surface of the film base (1) is provided with an anti-aging layer (3), and a plurality of anti-ultraviolet particles (31) are distributed in the anti-aging layer (3). The film base (1) is provided with a thermal conductive adhesive layer (4) on both sides of the metal coating (2), and the thermal conductive adhesive layer (4) is embedded with a heat collecting strip (5) and a heat dissipating strip (6). The two edges of the anti-aging layer (3) are raised upward to form a sealing edge (33), and the sealing edge (33) covers the outer edge of the thermal conductive adhesive layer (4).

2. The single-electrode anti-aging capacitor film according to claim 1, characterized in that: The anti-ultraviolet particles (31) are staggered in the anti-aging layer (3).

3. The single-electrode anti-aging capacitor film according to claim 1, characterized in that: The thickness of the metal coating (2) gradually decreases from the two edges to the middle, so as to form an arc-shaped recessed portion (21) in the middle of the metal coating (2).

4. The single-electrode anti-aging capacitor film according to claim 3, characterized in that: The thickness of the anti-aging layer (3) gradually increases from the two edges to the middle, so as to form an arc-shaped raised portion (32) in the middle of the anti-aging layer (3), and the raised portion (32) is consistent with the arc of the recessed portion (21).

5. The single-electrode anti-aging capacitor film according to claim 1, characterized in that: The heat collecting strip (5) is closely attached to the outer edge of the metal coating (2), and the heat collecting strip (5) extends along the length direction of the metal coating (2).

6. The single-electrode anti-aging capacitor film according to claim 1, characterized in that: The heat dissipation strip (6) is parallel to the width direction of the metal coating (2), one end of the heat dissipation strip (6) is connected to the heat collection strip (5), and the other end passes through the edge sealing portion (33).

7. The single-electrode anti-aging capacitor film according to claim 1, characterized in that: A plurality of heat dissipation strips (6) are distributed at equal intervals along the length direction of the heat collection strip (5).

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