CN219226079U - Capacitor film for producing coiled capacitor - Google Patents

Abstract

The utility model discloses a capacitor film for producing a coiled capacitor, which comprises a strip-shaped organic film and each conductive combined layer; each atomizing surface is arranged on the upper side surface of the strip-shaped organic film at intervals; each conductive combination layer is distributed on each atomization surface; the conductive combination layer comprises two strip-shaped connecting layers, two rectangular electrode layers and each rectangular vapor layer. The capacitor film can enhance the adhesive force by utilizing the atomization surface, prevent the metal layer from disengaging in the winding manufacturing process of the capacitor, and ensure the reliability of the capacitor; the strip-shaped connecting layer, the rectangular electrode layer and the narrow strip connecting layer can be used for reliably and electrically connecting each rectangular vapor layer with a capacitor electrode after the capacitor is wound and rolled, so that the conductivity is ensured; each middle laser notch arranged between the two electrode penetrating holes at intervals is utilized, so that the middle of the conductive combined layer can be folded in half conveniently, and then the rectangular electrode layer is clamped on the side edge of the capacitor electrode to enhance the conductivity.

Description

Capacitor film for producing coiled capacitor

Technical Field

The present utility model relates to a capacitor film, and more particularly, to a capacitor film for producing a roll-to-roll capacitor.

Background

At present, the structure of the existing capacitor film is fixed, but a rectangular metal film is only deposited on an organic film, but due to the limited thickness of the metal film, the metal film is likely to be separated or damaged when the capacitor is wound, the reliability of the capacitor is reduced, and in addition, when the capacitor film is wound, the conductivity of the metal film is reduced due to the stretching of a bending surface. It is therefore necessary to design a capacitive film for producing a wound capacitor, so that the wound capacitor can be manufactured with good reliability and conductivity.

Disclosure of Invention

The utility model aims to: a capacitor film for producing a wound capacitor is provided, which enables the production of a wound capacitor having good reliability and conductivity.

The technical scheme is as follows: the utility model relates to a capacitance film for producing a coiled capacitor, which comprises a strip-shaped organic film and each conductive combined layer; each atomizing surface is arranged on the upper side surface of the strip-shaped organic film at intervals; each conductive combination layer is distributed on each atomization surface; the conductive combined layer comprises two strip-shaped connecting layers, two rectangular electrode layers and each rectangular vapor layer; the two rectangular electrode layers are respectively arranged in the middle of the two length sides of the atomizing surface, and the two strip-shaped connecting layers are respectively transversely arranged in the middle of the left side and the right side of the atomizing surface; the ends of the two strip-shaped connecting layers are respectively and electrically connected with the two rectangular electrode layers; each rectangular vapor layer is distributed on the atomizing surfaces at the left side and the right side of the two rectangular electrode layers in an array mode, and each rectangular vapor layer is electrically connected with the strip-shaped connecting layer at the corresponding side through each narrow strip-shaped connecting layer; a folding flanging which is convenient to fold is arranged on the edge of the strip-shaped organic film and is close to the end parts of the two rectangular electrode layers; an electrode penetrating hole is formed in each of the two folding turnups; each middle laser notch is arranged on the atomizing surface between the two electrode penetrating holes at intervals.

Further, the end part of the strip-shaped connecting layer is electrically connected with the rectangular electrode layer on the corresponding side through the first connecting layer and the second connecting layer, the first connecting layer extends to the rectangular electrode layer on the corresponding side after being bent by 90 degrees from the end part of the strip-shaped connecting layer, and the second connecting layer is connected between the first connecting layer and the rectangular electrode layer on the corresponding side.

Further, a slit notch is arranged on the left side and the right side of the folding flanging.

Further, a side laser score parallel to the middle laser score is provided at the slit notch.

Further, shearing alignment notches are formed in the length edges of the two sides of the strip-shaped organic film and located between the atomizing surfaces; each strip-shaped slit hole is arranged between two opposite shearing alignment notches at intervals.

Further, the rectangular vapor deposition layer is formed by stacking a rectangular aluminum vapor deposition layer and a rectangular zinc vapor deposition layer, the rectangular zinc vapor deposition layer is covered on the rectangular aluminum vapor deposition layer, and the area of the rectangular zinc vapor deposition layer is the same as that of the rectangular aluminum vapor deposition layer.

Compared with the prior art, the utility model has the beneficial effects that: the adhesive force of the strip-shaped connecting layer, the rectangular electrode layer, the narrow strip-shaped connecting layer and the rectangular vapor layer can be enhanced by utilizing the atomization surface, so that the metal layer is prevented from being separated in the winding manufacturing process of the capacitor, and the reliability of the capacitor is ensured; the strip-shaped connecting layer, the rectangular electrode layer and the narrow strip connecting layer can be used for reliably and electrically connecting each rectangular vapor layer with a capacitor electrode after the capacitor is wound and rolled, so that the conductivity is ensured; the narrow strip connecting layers can be utilized to realize conductive connection of the rectangular vapor layers, and meanwhile, when the rectangular vapor layers are broken down, the narrow strip connecting layers can be fused in time, so that the safety of the capacitor in use is ensured; the electrode penetrating holes on the folded flanging which are convenient to fold are utilized, so that the capacitor electrodes of the capacitor can be conveniently penetrated and positioned; each middle laser notch arranged between the two electrode penetrating holes at intervals is utilized, so that the middle of the conductive combined layer can be folded in half conveniently, and then the rectangular electrode layer is clamped on the side edge of the capacitor electrode to enhance the conductivity.

Drawings

FIG. 1 is a schematic view of a partial structure of a strip-shaped organic thin film according to the present utility model;

FIG. 2 is a schematic cross-sectional view of the structure at A-A in FIG. 1.

Detailed Description

The technical scheme of the present utility model will be described in detail with reference to the accompanying drawings, but the scope of the present utility model is not limited to the embodiments.

As shown in fig. 1 and 2, the disclosed capacitive film for producing a roll-to-roll capacitor includes: a stripe-shaped organic thin film 1 and each conductive composite layer; each atomizing surface 2 is arranged on the upper side surface of the strip-shaped organic film 1 at intervals; each conductive combination layer is distributed on each atomizing surface 2; the conductive combined layer comprises two strip-shaped connecting layers 13, two rectangular electrode layers 4 and each rectangular vapor layer; the two rectangular electrode layers 4 are respectively arranged in the middle of the two length sides of the atomizing surface 2, and the two strip-shaped connecting layers 13 are respectively transversely arranged in the middle of the left side and the right side of the atomizing surface 2; the ends of the two strip-shaped connecting layers 13 are respectively and electrically connected with the two rectangular electrode layers 4; each rectangular vapor layer is distributed on the atomizing surfaces 2 on the left side and the right side of the two rectangular electrode layers 4 in an array manner, and is electrically connected with the strip-shaped connecting layer 13 on the corresponding side through each narrow strip connecting layer 15; a folding flanging 8 which is convenient to fold is arranged on the edge of the strip-shaped organic film 1 and near the end parts of the two rectangular electrode layers 4; an electrode penetrating hole 9 is arranged on each of the two folding flanges 8; each intermediate laser score 18 is arranged on the atomizing surface 2 between the two electrode penetrating holes 9 at intervals.

The adhesive force of the strip-shaped connecting layer 13, the rectangular electrode layer 4, the narrow strip-shaped connecting layer 15 and the rectangular vapor layer can be enhanced by utilizing the atomization surface 2, so that the metal layer is prevented from being separated in the winding manufacturing process of the capacitor, and the reliability of the capacitor is ensured; the strip-shaped connecting layer 13, the rectangular electrode layer 4 and the narrow strip connecting layer 15 can be used for reliably and electrically connecting each rectangular vapor layer with the capacitor electrode 17 after the capacitor is wound and rolled, so that the conductivity is ensured; the narrow strip connecting layers 15 can realize the conductive connection of each rectangular vapor layer, and simultaneously realize the timely fusing of the narrow strip connecting layers 15 when each rectangular vapor layer is broken down, so that the safety of the capacitor in use is ensured; the capacitor electrode 17 of the capacitor can be conveniently inserted and positioned by utilizing the folding flanging 8 which is convenient to fold and the electrode insertion hole 9 on the folding flanging 8; by using each middle laser notch 18 arranged between the two electrode penetrating holes 9 at intervals, the middle part of the conductive combined layer can be folded in half conveniently, so that the rectangular electrode layer 4 is clamped on the side edge of the capacitor electrode 17, and the conductive performance is enhanced.

Further, the ends of the strip-shaped connecting layer 13 are electrically connected with the rectangular electrode layers 4 on the corresponding sides through the first connecting layer 6 and the second connecting layer 5, the first connecting layer 6 extends to the rectangular electrode layers 4 on the corresponding sides after being bent by 90 degrees from the ends of the strip-shaped connecting layer 13, and the second connecting layer 5 is connected between the first connecting layer 6 and the rectangular electrode layers 4 on the corresponding sides. The end parts of the strip-shaped connecting layers 13 can be electrically connected with the corresponding rectangular electrode layers 4 by utilizing the first connecting layers 6 and the second connecting layers 5, and the end parts of the two strip-shaped connecting layers 13 can be far away by bending and extending the first connecting layers 6 and the second connecting layers 5, so that the strip-shaped connecting layers 13 are convenient to clamp the insulating film 16 in the middle after being folded in half in the middle, and the two strip-shaped connecting layers 13 are insulated and isolated.

Further, a slit 7 is provided on both the left and right sides of the folded flange 8. The folding of the folding flanging 8 can be facilitated by utilizing the two slit notches 7, so that the convex rectangular convex edges are not required to be arranged at the edges of the strip-shaped organic thin films 1 to position the capacitor electrodes 17, and the manufacturing requirement of the strip-shaped organic thin films 1 is reduced.

Further, a side laser score 10 is provided at the slit notch 7 parallel to the middle laser score 18. After the middle part of the strip-shaped organic film 1 is folded in half by utilizing the side laser scores 10, the rectangular electrode layers 4 on the strip-shaped organic film 1 are folded to wrap the capacitor electrodes 17, so that the conductivity is enhanced.

Further, shearing alignment notches 11 are arranged on the two side length edges of the strip-shaped organic film 1 and positioned between the atomizing surfaces 2; each strip-shaped slit hole 12 is arranged between two opposite shearing alignment notches 11 at intervals. The shearing alignment notch 11 is utilized to facilitate the machine to position the folding cutting position between the atomizing surfaces 2 and to perform folding cutting along the strip-shaped slit holes 12.

Further, the rectangular vapor deposition layer is formed by stacking a rectangular aluminum vapor deposition layer 14 and a rectangular zinc vapor deposition layer 3, the rectangular zinc vapor deposition layer 3 covers the rectangular aluminum vapor deposition layer 14, and the area of the rectangular zinc vapor deposition layer 3 is the same as the area of the rectangular aluminum vapor deposition layer 14; the rectangular electrode layer 4, the strip-shaped connecting layer 13, the first connecting layer 6 and the second connecting layer 5 adopt copper vapor deposition layers with better electric conductivity than zinc and aluminum.

Further, the rectangular aluminum vapor layer 14 has a thickness of 5 to 7 μm; the thickness of the rectangular zinc evaporation layer 3 is 19-22 mu m, and the rectangular electrode layer 4, the strip-shaped connecting layer 13, the first connecting layer 6 and the second connecting layer 5 are the same in material and thickness and are 25-29 mu m in thickness.

When the capacitor film for producing the coiled capacitor is manufactured and used, the rectangular aluminum vapor deposition layer 14, the rectangular zinc vapor deposition layer 3, the narrow strip connecting layer 15, the rectangular electrode layer 4, the strip connecting layer 13, the first connecting layer 6 and the second connecting layer 5 are all formed by vapor deposition in a vacuum vapor deposition mode, the vapor deposition shapes are all formed by pasting vapor deposition shielding layers in advance, and the thickness of the coating is controlled by vapor deposition time. When the strip-shaped organic film 1 is cut in sections along the strip-shaped slit holes 12, two capacitance electrodes 17 are inserted into the two electrode penetrating holes 9, and then folded in half by the middle laser nicks 18, and the insulating film 16 is clamped in the middle, and then double-layer integral winding is carried out.

As described above, although the present utility model has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the utility model itself. Various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (6)

1. A capacitive film for use in the production of a wound capacitor, characterized by: comprises a strip-shaped organic film (1) and each conductive combination layer; each atomizing surface (2) is arranged on the upper side surface of the strip-shaped organic film (1) at intervals; each conductive combination layer is distributed on each atomizing surface (2); the conductive combined layer comprises two strip-shaped connecting layers (13), two rectangular electrode layers (4) and each rectangular steaming layer; the two rectangular electrode layers (4) are respectively arranged in the middle of the two length sides of the atomizing surface (2), and the two strip-shaped connecting layers (13) are respectively and transversely arranged in the middle of the left side and the right side of the atomizing surface (2); the end parts of the two strip-shaped connecting layers (13) are respectively and electrically connected with the two rectangular electrode layers (4); each rectangular vapor layer is distributed on the atomizing surfaces (2) at the left side and the right side of the two rectangular electrode layers (4) in an array mode, and each rectangular vapor layer is electrically connected with the strip-shaped connecting layer (13) at the corresponding side through each narrow strip connecting layer (15); a folding flanging (8) which is convenient to fold is arranged on the edge of the strip-shaped organic film (1) and is close to the end parts of the two rectangular electrode layers (4); an electrode penetrating hole (9) is arranged on each of the two folding flanges (8); each intermediate laser notch (18) is arranged on the atomizing surface (2) between the two electrode penetrating holes (9) at intervals.

2. A capacitive film for use in the production of a coiled capacitor as in claim 1, wherein: the end part of the strip-shaped connecting layer (13) is electrically connected with the rectangular electrode layer (4) on the corresponding side through the first connecting layer (6) and the second connecting layer (5), the first connecting layer (6) extends to the rectangular electrode layer (4) on the corresponding side after being bent by 90 degrees at the end part of the strip-shaped connecting layer (13), and the second connecting layer (5) is connected between the first connecting layer (6) and the rectangular electrode layer (4) on the corresponding side.

3. A capacitive film for use in the production of a coiled capacitor as in claim 1, wherein: the left side and the right side of the folding flanging (8) are respectively provided with a gap notch (7).

4. A capacitive film for use in the production of a coiled capacitor as claimed in claim 3, wherein: a side laser notch (10) parallel to the middle laser notch (18) is arranged at the gap notch (7).

5. A capacitive film for use in the production of a coiled capacitor as in claim 1, wherein: shearing alignment notches (11) are formed in the length edges of the two sides of the strip-shaped organic film (1) and positioned between the atomizing surfaces (2); each strip-shaped slit hole (12) is arranged between two opposite shearing alignment notches (11) at intervals.

6. A capacitive film for use in the production of a coiled capacitor as in claim 1, wherein: the rectangular vapor deposition layer is formed by stacking rectangular aluminum vapor deposition layers (14) and rectangular zinc vapor deposition layers (3), the rectangular aluminum vapor deposition layers (14) are covered by the rectangular zinc vapor deposition layers (3), and the area of the rectangular zinc vapor deposition layers (3) is the same as the area of the rectangular aluminum vapor deposition layers (14).

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