CN216980350U

CN216980350U - Capacitor film for producing box-type capacitor

Info

Publication number: CN216980350U
Application number: CN202122710841.XU
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: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-07-15
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses a capacitor film for producing a box-type capacitor, which comprises a strip-shaped organic film and rectangular plating units; a doubling nick is transversely arranged in the middle of the film cutting unit; the middle edge of each film cutting unit is provided with a rectangular convex edge; and two electrode connecting layers extending to the rectangular convex edges of the corresponding sides are arranged at the side edges of the strip-shaped electrode layers. The capacitor film can be conveniently folded back and forth by folding the nicks, and the using effect of double-sided evaporation can be achieved by folding the nicks after single-sided evaporation; the two rectangular convex edges are arranged on the front side and the rear side, so that the two rectangular convex edges are changed to the same side after being folded back and forth, the requirement that two capacitor electrode posts are arranged on the same side is met, and the box-type folding capacitor with wires outgoing from the same side can be produced; thereby set up the rectangle chimb folding edge and with the centre gripping of electric capacity electrode post between the electrode connection layer of both sides when folding, strengthen the electric connection performance.

Description

Capacitor film for producing box-type capacitor

Technical Field

The utility model relates to a capacitor film, in particular to a capacitor film for producing a box-type capacitor.

Background

At present, the structure of the existing capacitor film is fixed, and only a rectangular metal film is evaporated on an organic film, but because the thickness of the metal film is limited, the metal film is possibly separated or damaged during folding production, and the reliability of the capacitor is reduced. Therefore, it is necessary to design a capacitor film for producing a box capacitor, which has better reliability and prolongs the service life of the capacitor.

Disclosure of Invention

Utility model purpose: the capacitor film for producing the box-type capacitor has better reliability and prolonged service life.

The technical scheme is as follows: the capacitor film for producing the box-type capacitor comprises a strip-shaped organic film and rectangular plating units; an atomizing layer for enhancing adhesive force is arranged on the upper side surface of the strip-shaped organic film; each longitudinal laser nick is longitudinally arranged on the atomizing layer at equal intervals, and the positions of the longitudinal laser nicks on the upper side and the lower side correspond to each other and are used for dividing the strip-shaped organic film into film cutting units; a doubling nick is transversely arranged in the middle of the film cutting unit; strip-shaped electrode layers are transversely arranged at the edges of the front side and the rear side of the upper side of the film cutting unit; each branch conductive strip is longitudinally arranged on the film cutting unit and on the front side and the rear side of the folded nick at equal intervals; transverse connecting strips are transversely arranged on the film cutting unit and positioned on the front side and the rear side of the folded nick; one end of each branch conductive strip is electrically connected with the strip electrode layer on the corresponding side, the other end of each branch conductive strip is electrically connected with the transverse connecting strip on the corresponding side, and the strip electrode layers, the transverse connecting strips and the branch conductive strips surround and divide the film cutting unit into film folding sections; each rectangular coating unit is distributed on the atomizing layer of each film folding interval in an array manner, and each narrow strip connecting layer is electrically connected between each adjacent rectangular coating units; the rectangular plating units positioned on the front side and the rear side of the doubling back nick are symmetrical with respect to the front side and the rear side of the doubling back nick; each rectangular plating layer unit is electrically connected with the adjacent strip-shaped electrode layer, the transverse connecting strip and the branch conductive strips through each narrow strip connecting layer; a rectangular convex edge is arranged on the front side and the rear side of the strip-shaped organic film and in the middle of each film cutting unit, and the two rectangular convex edges are respectively arranged at different folding edges of two film folding intervals which are symmetrical in the front and the rear directions; two electrode connecting layers extending to the rectangular convex edges of the corresponding sides are arranged at the side edges of the strip-shaped electrode layers.

Furthermore, electrode folding nicks are arranged on the rectangular convex edge between the two electrode connecting layers, and the electrode folding nicks correspond to the folding edges of the film folding interval.

Further, a rectangular electrode hole is provided on the rectangular convex edge and at an end of one electrode connection layer.

Furthermore, the rectangular plating layer unit is formed by laminating a rectangular aluminum evaporation plating layer and a rectangular zinc evaporation plating layer, the rectangular zinc evaporation plating layer covers the rectangular aluminum evaporation plating layer, and the area of the rectangular zinc evaporation plating layer is the same as that of the rectangular aluminum evaporation plating layer.

Furthermore, a U-shaped positioning notch is formed in the front edge and the rear edge of the strip-shaped organic film and is located at each longitudinal laser nick.

Furthermore, film folding nicks are longitudinally arranged in each film folding interval and close to the side edges of the branch conducting strips.

Compared with the prior art, the utility model has the beneficial effects that: the adhesive force of the strip electrode layer, the branch conductive strips, the narrow strip connecting layer, the transverse connecting strips and the rectangular plating units can be enhanced by utilizing the atomizing layer, so that the separation in the folding manufacturing process of the capacitor is prevented; the strip electrode layer, the branch conductive strips and the transverse connecting strips are encircled to form a film folding interval, and the film folding interval is electrically connected with the rectangular plating units through the narrow strip connecting layer, so that the electric connection performance of each rectangular plating unit can be effectively enhanced, and the reliability of manufacturing a folding capacitor is ensured; the two electrode connecting layers arranged on the rectangular convex edge can be used for relatively clamping the capacitor electrode column when being folded, so that the electric connection performance of the capacitor electrode column is ensured; the strip-shaped organic film can be conveniently folded and cut into each film cutting unit by utilizing each longitudinal laser nick; the narrow strip connecting layers can be used for realizing the electric connection between each adjacent rectangular plating layer unit, and the narrow strip connecting layers can be fused in time when each rectangular plating layer unit is broken down, so that the safety of the capacitor in use is ensured; the film cutting units can be conveniently folded back and forth through the folding nicks, so that the rectangular plating layer units are positioned on the upper side and the lower side after being folded back, and the using effect of double-sided evaporation can be achieved through folding back after single-sided evaporation; the two rectangular convex edges are arranged on the front side and the rear side, so that the front side and the rear side are folded and then are changed to the same side, the requirement that two capacitor electrode columns are arranged on the same side is met, and the box-type folding capacitor with wires outgoing from the same side can be produced; thereby set up the rectangle chimb folding edge and carry out when folding with electric capacity electrode post centre gripping between the electrode connection layer of both sides, reinforcing electricity connection performance.

Drawings

FIG. 1 is a schematic top view of a film cutting unit according to the present invention;

fig. 2 is a schematic sectional view at a-a in fig. 1.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

As shown in fig. 1 and 2, the capacitor film for producing a cartridge capacitor disclosed in the present invention comprises: a strip-shaped organic film 1 and each rectangular plating unit; an atomizing layer 2 for enhancing adhesive force is arranged on the upper side surface of the strip-shaped organic film 1; each longitudinal laser nick 12 is longitudinally arranged on the atomizing layer 2 at equal intervals, and the positions of each longitudinal laser nick 12 on the upper side and the lower side correspond to each other and are used for dividing the strip-shaped organic film 1 into each film cutting unit; a doubling nick 14 is transversely arranged in the middle of the film cutting unit; strip-shaped electrode layers 9 are transversely arranged at the edges of the front side and the rear side of the upper side of the film cutting unit; each branch conductive strip 10 is longitudinally arranged on the film cutting unit at equal intervals on the front side and the rear side of the doubling nick 14; transverse connecting strips 17 are transversely arranged on the film cutting unit and positioned at the front side and the rear side of the doubling nick 14; one end of each branch conductive strip 10 is electrically connected with the strip electrode layer 9 on the corresponding side, the other end of each branch conductive strip is electrically connected with the transverse connecting strip 17 on the corresponding side, and the strip electrode layers 9, the transverse connecting strips 17 and the branch conductive strips 10 surround and divide the film cutting unit into film folding sections; each rectangular coating unit is distributed on the atomizing layer 2 of each film folding interval in an array manner, and each narrow connecting layer 11 is electrically connected between each adjacent rectangular coating units; the rectangular plating units positioned at the front side and the rear side of the fold score 14 are symmetrical with respect to the front side and the rear side of the fold score 14; each rectangular plating layer unit is electrically connected with the adjacent strip-shaped electrode layer 9, the transverse connecting strip 17 and the branch conductive strips 10 through each narrow strip connecting layer 11; a rectangular convex edge 5 is arranged on the front side and the rear side of the strip-shaped organic film 1 and in the middle of each film cutting unit, and the two rectangular convex edges 5 are respectively arranged at different folding edges of two film folding intervals which are symmetrical front and rear; two electrode connecting layers 6 extending to the rectangular convex edges 5 on the corresponding sides are arranged at the side edges of the strip-shaped electrode layers 9.

The adhesive force of the strip-shaped electrode layer 9, the branch conductive strips 10, the narrow strip connecting layer 11, the transverse connecting strips 17 and the rectangular plating units can be enhanced by utilizing the atomizing layer 2, so that the separation of the capacitor in the folding manufacturing process is prevented; the strip electrode layer 9, the branch conductive strips 10 and the transverse connecting strips 17 are encircled to form a film folding interval, and the film folding interval is electrically connected with the rectangular plating units through the strip connecting layer 11, so that the electrical connection performance of each rectangular plating unit can be effectively enhanced, and the reliability of manufacturing a folding capacitor is ensured; the two electrode connecting layers 6 arranged on the rectangular convex edge 5 can be used for relatively clamping the capacitor electrode column during folding, so that the electric connection performance of the capacitor electrode column is ensured; the strip-shaped organic film 1 can be conveniently folded and cut into each film cutting unit by utilizing each longitudinal laser nick 12; the narrow connecting layers 11 can be used for realizing the electric connection between each adjacent rectangular plating layer unit, and the narrow connecting layers 11 can be fused in time when each rectangular plating layer unit is broken down, so that the safety of the capacitor in use is ensured; the folding nicks 14 can facilitate the front and back folding of each film cutting unit, so that each rectangular plating unit is positioned on the upper and lower side surfaces after the folding, and the using effect of double-sided evaporation can be achieved through the folding after single-sided evaporation; the two rectangular convex edges 5 are arranged on the front side and the rear side, so that the front side and the rear side are folded in half and then are changed to the same side, the requirement that two capacitor electrode columns are arranged on the same side is met, and the box-type folding capacitor with wires outgoing from the same side can be produced; the rectangular convex edge 5 is arranged at the folding edge, so that the capacitor electrode column is clamped between the electrode connecting layers 6 at two sides when the capacitor electrode column is folded, and the electric connection performance is enhanced.

Further, an electrode folding nick 8 is arranged on the rectangular convex edge 5 between the two electrode connecting layers 6, and the electrode folding nick 8 corresponds to the folding edge of the film folding region.

The electrode folding nicks 8 can facilitate the alignment folding of the rectangular convex edge 5, so that the two electrode connecting layers 6 can clamp the capacitor electrode columns relatively.

Further, a rectangular electrode hole 7 is provided on the rectangular flange 5 at an end of one electrode connection layer 6. The rectangular electrode hole 7 can be used for penetrating and limiting when the capacitor electrode column is installed, and the stability of the electrode column during winding is ensured.

Further, the rectangular plating layer unit is formed by laminating a rectangular aluminum evaporation layer 3 and a rectangular zinc evaporation layer 4, the rectangular zinc evaporation layer 4 covers the rectangular aluminum evaporation layer 3, and the area of the rectangular zinc evaporation layer 4 is the same as that of the rectangular aluminum evaporation layer 3.

Further, a U-shaped positioning notch 13 is provided at each of the longitudinal laser scores 12 at the front and rear side edges of the strip-shaped organic film 1.

The use of U-shaped locating notches 13 can facilitate machine location of the fold between individual film cutting units and the fold cut along the longitudinal laser score 12.

Further, a film folding notch 15 is longitudinally provided in each film folding section and near the side edge of each branch conductive strip 10.

The utilization of each film folding nick 15 can facilitate the continuous Z-shaped folding during the manufacture of the capacitor, thereby meeting the production requirement of the box-type folding capacitor.

Further, the thickness of the rectangular aluminum evaporation layer 3 is 5-7 μm; the thickness of the rectangular zinc evaporation layer 4 is 19-22 μm, and the thickness of the strip-shaped electrode layer 8, the branch conductive strips 7 and the transverse connecting strips 15 is 20-24 μm.

When the foldable capacitor film disclosed by the utility model is manufactured and used, the strip electrode layer 9, the branch conductive strips 10, the narrow strip connecting layer 11, the transverse connecting strips 17, the rectangular aluminum evaporation coating layer 3 and the rectangular zinc evaporation coating layer 4 are formed by evaporation in a vacuum evaporation mode, the evaporated shapes are formed by sticking evaporation coating shielding layers in advance, and the coating thickness is controlled by evaporation time.

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

Claims

1. A capacitor film for use in producing a cartridge capacitor, comprising: comprises a strip-shaped organic film (1) and each rectangular plating unit; an atomizing layer (2) for enhancing adhesive force is arranged on the upper side surface of the strip-shaped organic film (1); each longitudinal laser nick (12) is longitudinally arranged on the atomizing layer (2) at equal intervals, and the positions of the longitudinal laser nicks (12) on the upper side and the lower side correspond to each other and are used for dividing the strip-shaped organic film (1) into film cutting units; a doubling nick (14) is transversely arranged in the middle of the film cutting unit; strip-shaped electrode layers (9) are transversely arranged at the front side edge and the rear side edge of the upper side surface of the film cutting unit; each branch conductive strip (10) is longitudinally arranged on the film cutting unit and positioned on the front side and the rear side of the doubling nick (14) at equal intervals; transverse connecting strips (17) are transversely arranged on the film cutting unit and positioned at the front side and the rear side of the doubling nick (14); one end of each branch conductive strip (10) is electrically connected with the strip-shaped electrode layer (9) on the corresponding side, the other end of each branch conductive strip is electrically connected with the transverse connecting strip (17) on the corresponding side, and the strip-shaped electrode layer (9), the transverse connecting strips (17) and the branch conductive strips (10) surround and divide the film cutting unit into film folding sections; each rectangular plating unit is distributed on the atomizing layer (2) of each film folding interval in an array manner, and each narrow connecting layer (11) is electrically connected between each adjacent rectangular plating units; the rectangular plating units positioned at the front side and the rear side of the doubling back nick (14) are symmetrical with respect to the doubling back nick (14); each rectangular plating layer unit is electrically connected with the adjacent strip-shaped electrode layer (9), the transverse connecting strip (17) and the branch conductive strips (10) through each narrow strip connecting layer (11); a rectangular convex edge (5) is arranged on the front side and the rear side of the strip-shaped organic film (1) and in the middle of each film cutting unit, and the two rectangular convex edges (5) are respectively arranged at different folding edges of two film folding intervals which are symmetrical in the front and the rear directions; two electrode connecting layers (6) extending to the rectangular convex edges (5) on the corresponding sides are arranged at the side edges of the strip-shaped electrode layers (9).

2. The capacitor film for producing a cartridge capacitor as claimed in claim 1, wherein: electrode folding nicks (8) are arranged on the rectangular convex edge (5) between the two electrode connecting layers (6), and the electrode folding nicks (8) correspond to the folding edges of the film folding interval.

3. The capacitor film for producing a cartridge capacitor as claimed in claim 1, wherein: a rectangular electrode hole (7) is arranged on the rectangular convex edge (5) and at the end part of one electrode connecting layer (6).

4. The capacitor film for producing a cartridge capacitor as claimed in claim 1, wherein: the rectangular plating layer unit is formed by stacking a rectangular aluminum evaporation layer (3) and a rectangular zinc evaporation layer (4), the rectangular zinc evaporation layer (4) covers the rectangular aluminum evaporation layer (3), and the area of the rectangular zinc evaporation layer (4) is the same as that of the rectangular aluminum evaporation layer (3).

5. The capacitor film for producing a cartridge capacitor as claimed in claim 1, wherein: and U-shaped positioning notches (13) are arranged at the front and rear side edges of the strip-shaped organic film (1) and at the positions of the longitudinal laser scores (12).

6. The capacitor film for producing a cartridge capacitor as claimed in claim 1, wherein: and film folding nicks (15) are longitudinally arranged in each film folding interval and close to the side edges of the branch conductive strips (10).