CN219303485U

CN219303485U - Capacitor film for producing coiled capacitor

Info

Publication number: CN219303485U
Application number: CN202223477351.0U
Authority: CN
Inventors: 周友良; 祝明贺; 孙正荣; 刘继勇; 王通宇; 邱红; 王艳
Original assignee: Yancheng Tongqi Electric Manufacturing Co ltd
Current assignee: Yancheng Tongqi Electric Manufacturing Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-07-04
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a capacitor film for producing a coiled capacitor, which comprises a strip-shaped organic film and each conductive combination layer; the conductive combined layer comprises a strip electrode layer, a strip connecting layer and each rectangular steaming layer; the edge of the strip-shaped organic film is provided with a folding flanging, and the folding flanging is provided with an electrode penetrating hole; a U-shaped folding hole is formed in the electrode gap, so that a folding limit strip is formed; an end limiting hole is arranged at the end of the folding limiting strip. The capacitor film can conveniently penetrate and position the capacitor electrode of the capacitor by utilizing the folding flanging which is convenient to fold and the electrode penetrating holes on the folding flanging; utilize the spacing of end spacing hole on folding spacing and the folding spacing can realize that the capacitive electrode inserts the spacing of tip, can also make the insulating isolation of capacitive electrode tip that two axial corresponds, ensure the reliability of capacitive electrode installation, improve the production qualification rate of condenser.

Description

Capacitor film for producing coiled capacitor

Technical Field

The utility model relates to a capacitor film, in particular to a capacitor film for producing a coiled capacitor.

Background

The capacitor film is formed by evaporating rectangular metal film on the organic film, winding with capacitor electrode to form inner core, and packaging. However, the capacitor electrode is not easy to be positioned during winding, and the capacitor electrode is skewed after winding, and even bad contact is possibly caused, so that the qualification rate of the capacitor is affected.

Disclosure of Invention

The utility model aims at: the capacitor film for producing the coiled capacitor can effectively limit the capacitor electrode, ensure the conductive reliability of the capacitor electrode and ensure the qualification rate of the capacitor.

In order to achieve the above object, the present utility model provides a capacitor film for producing a roll-type capacitor, comprising a strip-shaped organic film and respective conductive composite layers; each atomizing surface is transversely arranged on the upper side surface and the lower side surface of the strip-shaped organic film at intervals, and the positions of the atomizing surfaces on the upper side and the lower side are corresponding; the conductive combined layer comprises a strip electrode layer, a strip connecting layer and each rectangular steaming layer; an electrode gap is reserved between adjacent atomizing surfaces, and a strip-shaped separation hole is transversely arranged in the middle of the electrode gap; the strip-shaped electrode layers are arranged on the electrode gaps, and the two strip-shaped electrode layers on the upper side surface and the lower side surface of the electrode gaps are respectively positioned on two sides of the strip-shaped separation holes; the strip-shaped connecting layer is transversely arranged at the edge of the atomizing surface and is vertically connected with the end part of the strip-shaped electrode layer at the corresponding side; each rectangular vapor layer is arranged on the atomizing surface in an array mode, and adjacent rectangular vapor layers and the strip-shaped connecting layers are electrically connected through the narrow strip connecting layers; a folding flanging which is convenient to fold is arranged on the edge of the strip-shaped organic film and is close to the outer side end part of the strip-shaped electrode layer, and an electrode penetrating hole is arranged on the folding flanging; a U-shaped folding hole is formed in the electrode gap and close to the inner side end part of the strip-shaped electrode layer, so that a folding limit strip is formed; an end limiting hole is arranged at the end of the folding limiting strip.

Further, a folding laser notch is arranged in the middle of the folding limit strip.

Further, a shear positioning notch is arranged on the edge of the strip-shaped organic film and at the two ends of the electrode gap.

Further, a shearing alignment laser notch is arranged between the corresponding shearing positioning notches.

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

Further, a folding laser nick is arranged at the joint of the folding flanging.

Further, the rectangular vapor deposition layer is formed by stacking a rectangular aluminum vapor deposition layer and a rectangular zinc vapor deposition layer, and the rectangular zinc vapor deposition layer is covered on the rectangular aluminum vapor deposition layer.

The utility model has the beneficial effects that: 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; the limiting of the insertion end of the capacitor electrode can be realized by utilizing the folding limiting strip and the end limiting hole on the folding limiting strip, and the two axially corresponding capacitor electrode ends can be insulated and isolated, so that the reliability of the installation of the capacitor electrode is ensured, and the production qualification rate of the capacitor is improved; the adhesive force of the strip-shaped connecting layer and the rectangular vapor plating 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 electrode layer, the strip connecting layer and the narrow strip connecting layer can be used for reliably and electrically connecting each rectangular vapor layer with the capacitor electrode after the capacitor is wound and rolled, so that the conductivity is ensured; when each rectangular vapor layer is broken down, the narrow strip connecting layers can be fused in time, and the safety of the capacitor in use is ensured.

Drawings

FIG. 1 is a schematic view of a capacitive film segment structure 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.

Example 1:

as shown in fig. 1 and 2, the capacitor film for producing a roll-to-roll capacitor according to the present utility model includes: a stripe-shaped organic thin film 1 and each conductive composite layer; each atomizing surface 2 is transversely arranged on the upper side surface and the lower side surface of the strip-shaped organic film 1 at intervals, and the positions of the atomizing surfaces 2 on the upper side and the lower side correspond to each other; the conductive combined layer comprises a strip electrode layer 15, a strip connecting layer 17 and each rectangular vapor layer; an electrode gap is reserved between the adjacent atomizing surfaces 2, and a strip-shaped separation hole 14 is transversely arranged in the middle of the electrode gap; the strip electrode layers 15 are arranged on the electrode gaps, and the two strip electrode layers 15 on the upper side and the lower side of the electrode gaps are respectively positioned on two sides of the strip separation holes 14; the strip-shaped connecting layer 17 is transversely arranged at the edge of the atomizing surface 2 and is vertically connected with the end part of the strip-shaped electrode layer 15 on the corresponding side; each rectangular vapor layer is arranged on the atomizing surface 2 in an array manner, and the adjacent rectangular vapor layers and the strip-shaped connecting layers 17 are electrically connected through the narrow strip-shaped connecting layers 18; a folding flanging 8 which is convenient to fold is arranged on the edge of the strip-shaped organic film 1 and near the outer end part of the strip-shaped electrode layer 15, and an electrode penetrating hole 16 is arranged on the folding flanging 8; a U-shaped folding hole 10 is arranged on the electrode gap and near the inner side end part of the strip-shaped electrode layer 15, so as to form a folding limit bar 11; an end limiting hole 13 is provided at an end of the folding limiting bar 11.

The capacitor electrode 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 16 on the folding flanging 8; the limit of the insertion end of the capacitor electrode can be realized by utilizing the folding limit strip 11 and the end limit hole 13 on the folding limit strip 11, and the two axially corresponding capacitor electrode ends can be insulated and isolated, so that the reliability of the installation of the capacitor electrode is ensured, and the production qualification rate of the capacitor is improved; the adhesive force of the strip-shaped connecting layer 17 and the rectangular vapor plating 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 electrode layer 15, the strip connecting layer 17 and the narrow strip connecting layer 18 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 18 can be utilized to realize the conductive connection of each rectangular vapor layer, and simultaneously, the narrow strip connecting layers 18 can be fused in time when each rectangular vapor layer is broken down, so that the safety of the capacitor in use is ensured.

Further, a folding laser score 12 is provided in the middle of the folding limit bar 11. The folding laser nick 12 can be used for conveniently folding the limit bar 11 to carry out V-shaped folding, so that on one hand, the end part of the capacitor electrode can be conveniently and smoothly inserted into the end part limit hole 13, and on the other hand, the end part of the capacitor electrode inserted into the capacitor electrode can be subjected to limit blocking and insulation isolation after the V-shaped folding, so that the end parts of the two axially corresponding capacitor electrodes are insulated and isolated.

Further, a shear positioning notch 5 is provided on the edge of the strip-shaped organic film 1 at both ends of the electrode gap. The shearing locating notch 5 can facilitate the positioning of the electrode gap by the machine, thereby carrying out accurate locating shearing.

Further, a shearing alignment laser notch 6 is arranged between the corresponding shearing positioning notches 5. The accuracy of the shearing can be enhanced by utilizing the shearing alignment laser scoring 6.

Further, a slit 7 is provided on both the left and right sides of the folded flange 8. The folding flanging 8 can be singly folded by utilizing the slit notches 7 on the two sides, 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, and the manufacturing requirement of the strip-shaped organic thin films 1 is reduced.

Further, a folding laser score 9 is provided at the junction of the folded flange 8. The folding of the flange 8 can be easily performed by the folding laser scoring 9.

Further, the rectangular vapor deposition layer is formed by stacking a rectangular aluminum vapor deposition layer 4 and a rectangular zinc vapor deposition layer 3, and the rectangular zinc vapor deposition layer 3 is covered on the rectangular aluminum vapor deposition layer 4. The area of the rectangular zinc vapor deposition layer 3 is the same as that of the rectangular aluminum vapor deposition layer 4; the strip electrode layer 15 and the strip connecting layer 17 are copper plating layers with better conductivity than zinc and aluminum.

Further, the thickness of the rectangular aluminum evaporation layer 4 is 5-7 μm; the thickness of the rectangular zinc evaporation layer 3 is 18-21 mu m, the materials and the thicknesses of the strip electrode layer 15 and the strip connecting layer 17 are the same, and the thicknesses are 23-28 mu m.

When the capacitor film for producing the coiled capacitor is manufactured and used, the rectangular aluminum vapor deposition layer 4, the rectangular zinc vapor deposition layer 3, the strip electrode layer 15 and the strip connecting layer 17 are all formed by vapor deposition in a vacuum vapor deposition mode, the vapor deposition shapes are all formed by adhering vapor deposition shielding layers in advance, and the thickness of a plating layer is controlled by vapor deposition time. After the strip-shaped organic film 1 is cut in sections along the shearing alignment laser scores 6, the folding flanging 8 of the lower side is turned upwards, the folding flanging 8 of the upper side is turned downwards, the folding limit bar 11 of the lower side is turned upwards and folded into an inverted V shape, the folding limit bar 11 of the upper side is turned downwards and folded into a V shape, the capacitor electrodes are respectively inserted into the two electrode insertion holes 16, the inner ends of the capacitor electrodes are inserted into the end limit holes 13 of the corresponding side, the ends of the capacitor electrodes are blocked and limited by the V-shaped folding limit bar 11, and the insulating isolation function is realized, so that the two axially corresponding capacitor electrode ends are insulated and isolated, in order to enhance the conductivity, the capacitor electrodes and the strip-shaped electrode layer 15 can be welded, an insulating cushion layer is added, winding is started from the side where the capacitor electrodes are inserted, and then the operations such as packaging are performed.

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

1. A capacitive film for use in the production of a wound capacitor, comprising: comprises a strip-shaped organic film (1) and each conductive combination layer; each atomizing surface (2) is transversely arranged on the upper side surface and the lower side surface of the strip-shaped organic film (1) at intervals, and the positions of the atomizing surfaces (2) on the upper side and the lower side are corresponding; the conductive combined layer comprises a strip electrode layer (15), a strip connecting layer (17) and each rectangular vapor layer; an electrode gap is reserved between adjacent atomizing surfaces (2), and a strip-shaped separation hole (14) is transversely arranged in the middle of the electrode gap; the strip-shaped electrode layers (15) are arranged on the electrode gaps, and the two strip-shaped electrode layers (15) on the upper side surface and the lower side surface of the electrode gaps are respectively positioned on two sides of the strip-shaped separation holes (14); the strip-shaped connecting layer (17) is transversely arranged at the edge of the atomizing surface (2) and is vertically connected with the end part of the strip-shaped electrode layer (15) at the corresponding side; each rectangular vapor layer is arranged on the atomizing surface (2) in an array mode, and adjacent rectangular vapor layers and the rectangular vapor layers are electrically connected with the strip-shaped connecting layers (17) through the narrow strip connecting layers (18); 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 outer side end part of the strip-shaped electrode layer (15), and an electrode penetrating hole (16) is arranged on the folding flanging (8); a U-shaped folding hole (10) is arranged on the electrode gap and near the inner side end part of the strip-shaped electrode layer (15), so as to form a folding limit strip (11); an end limiting hole (13) is arranged at the end part of the folding limiting strip (11).

2. A capacitor film for use in producing a roll-to-roll capacitor as set forth in claim 1, wherein: a folding laser notch (12) is arranged in the middle of the folding limit strip (11).

3. A capacitor film for use in producing a roll-to-roll capacitor as set forth in claim 1, wherein: a shearing and positioning notch (5) is arranged on the edge of the strip-shaped organic film (1) and positioned at two ends of the electrode gap.

4. A capacitive film for use in the production of a roll-to-roll capacitor as in claim 3, wherein: and a shearing alignment laser notch (6) is arranged between the corresponding shearing positioning notches (5).

5. A capacitor film for use in producing a roll-to-roll capacitor as set forth in claim 1, wherein: the left side and the right side of the folding flanging (8) are respectively provided with a gap notch (7).

6. A capacitor film for use in producing a roll-to-roll capacitor as set forth in claim 1, wherein: the connection part of the folding flanging (8) is provided with a folding laser nick (9).

7. A capacitor film for use in producing a roll-to-roll capacitor as set forth in claim 1, wherein: the rectangular vapor deposition layer is formed by stacking rectangular aluminum vapor deposition layers (4) and rectangular zinc vapor deposition layers (3), and the rectangular zinc vapor deposition layers (3) are covered on the rectangular aluminum vapor deposition layers (4).