KR101781512B1 - Electrode forming film and film capacitor using the same - Google Patents

Electrode forming film and film capacitor using the same Download PDF

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Publication number
KR101781512B1
KR101781512B1 KR1020150045472A KR20150045472A KR101781512B1 KR 101781512 B1 KR101781512 B1 KR 101781512B1 KR 1020150045472 A KR1020150045472 A KR 1020150045472A KR 20150045472 A KR20150045472 A KR 20150045472A KR 101781512 B1 KR101781512 B1 KR 101781512B1
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South Korea
Prior art keywords
electrode
common electrode
split electrodes
electrodes
split
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KR1020150045472A
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Korean (ko)
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KR20160028337A (en
Inventor
오영주
이수휘
이경민
조영준
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삼화콘덴서공업주식회사
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Priority to US14/683,388 priority Critical patent/US9570239B2/en
Publication of KR20160028337A publication Critical patent/KR20160028337A/en
Priority to CN201610165326.9A priority patent/CN106024386A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/018—Dielectrics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/005—Electrodes
    • H01G4/012—Form of non-self-supporting electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/005—Electrodes
    • H01G4/015—Special provisions for self-healing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/33—Thin- or thick-film capacitors 

Abstract

The present invention relates to an electrode-forming film and a film capacitor using the same, which can minimize the capacity decrease due to the operation of the fuse portion. The electrode-forming film of the present invention comprises a dielectric film; An electrode head formed on an upper surface of the dielectric film; A first common electrode formed on an upper surface of the dielectric film to be connected to the electrode head portion; A plurality of first division electrodes spaced apart from each other in a first direction on the upper surface of the dielectric film and spaced apart from each other in a second direction orthogonal to the first direction; A second common electrode formed on the upper surface of the dielectric film so as to be spaced apart from the first divided electrode in the first direction; A plurality of second division electrodes spaced apart from each other in the first direction by a second common electrode on an upper surface of the dielectric film and spaced apart from each other in the second direction; A plurality of first fuse units formed between the first common electrode and the plurality of first split electrodes to allow a current to flow into and out of the first common electrode and a plurality of first split electrodes through the electrode head unit; A plurality of second fuse portions formed between the plurality of first split electrodes and the second common electrode to allow a current to flow into and out of the first common electrode and a plurality of first split electrodes and a second common electrode; And a plurality of third fuse units formed between the second common electrode and the plurality of second split electrodes to allow a current to flow into and out of the plurality of first split electrodes to flow into the second common electrode and the plurality of second split electrodes .

Description

Electrode Forming Film and Film Capacitor Using the Electrode Forming Film and Film Capacitor Using the Same [

The present invention relates to an electrode-forming film and a film capacitor using the electrode-forming film. More particularly, the present invention relates to an electrode-forming film and a film capacitor using the same, which can minimize the capacity reduction due to the operation of the fuse portion.

The film capacitor is used as a DC link for voltage stabilization in an inverter circuit system, as a filter to remove ripple current, or as a snubber capacitor to absorb surge voltage. An electrode forming film is used as the film capacitor, and an electrode forming film having a self-healing property by forming a metal pattern on the surface of the dielectric is used. The self-recovery property of the electrode-forming film is such that if dielectric breakdown occurs in the dielectric, the metal pattern deposited on the dielectric breakdown is heated and evaporated to protect the film capacitor. A related art is disclosed in Korean Patent No. 836567 .

Korean Patent No. 836567 relates to a metallized plastic film for a film capacitor comprising a split electrode portion and a fuse portion. The split electrode portion is formed in a rectangular shape elongated from 1/4 to 4/5 of the film width toward the other side in the film width direction from the margin portion on one side where the electrode metal is not deposited and the fuse portion extends from the split electrode at the end of the margin portion to the electrode And is formed to be patterned so as to be continuously formed at regular intervals along the longitudinal direction of the film so as to be formed at any one of the portions in contact with the metal.

In the conventional electrode-forming film disclosed in Korean Patent No. 836567, when the fuse portion is evaporated due to dielectric breakdown, the split electrode portion connected to the fuse portion is opened to reduce the area of the electrode forming film, thereby reducing the capacity of the film capacitor There is a problem. In addition, in the conventional electrode-forming film, when the fuse portion is arranged in a line on the straight line, the fuse portion is operated and evaporated due to insulation breakdown, the adjacent electrode fuse portion may interfere with normal operation of the fuse .

Patent Document 1: Korean Patent No. 836567 (Registered Date: June 3, 2008)

SUMMARY OF THE INVENTION An object of the present invention is to provide an electrode-forming film and a film capacitor using the same that can minimize a reduction in capacity due to the operation of a fuse unit.

Another object of the present invention is to provide an electrode-forming film which can prevent the fuse unit from being operated normally when the fuse unit is arranged in a staggered arrangement so that the fuse unit is affected by the fuse unit when the fuse unit is evaporated and the film capacitor .

It is another object of the present invention to provide an electrode forming film capable of minimizing heat generation when a load is applied by reducing the resistance of the electrode forming film while maintaining the security by arranging the area of the segment electrode connected to the fuse portion And a film capacitor using the same.

The electrode forming film of the present invention comprises: a dielectric film; An electrode head formed on an upper surface of the dielectric film; A first common electrode formed on an upper surface of the dielectric film to be connected to the electrode head; A plurality of first split electrodes spaced apart from each other in a first direction on a top surface of the dielectric film and spaced apart from each other in a second direction orthogonal to the first direction; A second common electrode formed on an upper surface of the dielectric film so as to be spaced apart from the first divided electrode in a first direction; A plurality of second split electrodes spaced apart from each other in a first direction on the upper surface of the dielectric film and spaced apart from each other in the second direction; A plurality of first fuse portions formed between the first common electrode and the plurality of first split electrodes to allow a current to flow into and out of the first common electrode and a plurality of first split electrodes through the electrode head portion; A plurality of second fuse units formed between the plurality of first split electrodes and the second common electrode to cause a current flowing into and out of the first common electrode to flow into the plurality of first split electrodes and the second common electrode; And a plurality of third fuse portions formed between the second common electrode and the plurality of second split electrodes to allow a current to flow into and out of the plurality of first split electrodes to flow into the second common electrode and the plurality of second split electrodes .

The film capacitor using the electrode-forming film of the present invention has electrode heads, a first common electrode, a plurality of first split electrodes, a second common electrode, a plurality of second split electrodes, a plurality of first fuse portions, Two or more electrode forming films each having a dielectric film on which two fuse portions and a plurality of third fuse portions are arranged on a top surface of the dielectric film; And a pair of external electrodes respectively connected to the electrode head portions of the at least two electrode forming films, wherein the at least two electrode forming films each have an electrode head portion crossed at one side and the other side, Wherein the plurality of second split electrodes are stacked so that the second common electrode and the plurality of first split electrodes overlap each other and one of the pair of the outer peripheral electrodes is an electrode head portion positioned at one side of the electrode forming film And the other electrode is connected to the electrode head part located on the other side of the electrode forming film.

The electrode-forming film and the film capacitor using the same according to the present invention have an advantage of minimizing the capacity reduction due to the operation of the fuse portion. When the fuse portion is operated and evaporated, the fuse portion is arranged in a staggered arrangement, There is an advantage that it is possible to prevent that the fuse unit is not operated normally.

In addition, the electrode-forming film of the present invention and the film capacitor using the same can reduce the resistance of the electrode-forming film while maintaining the security by arranging the area of the segment electrode connected to the fuse part differently according to the position, There is an advantage.

1 is a perspective view of an electrode-forming film of the present invention,
FIG. 2 is a plan view of the electrode forming film shown in FIG. 1,
3 is a plan view showing another embodiment of the electrode forming film shown in FIG. 2,
4 is a plan view showing still another embodiment of the electrode-forming film shown in Fig. 2, Fig.
5 and 6 are a plan view showing another embodiment of the first split electrode shown in FIG. 2,
7 to 9 are plan views showing another embodiment of the split electrodes and the fuse portions shown in FIG. 2,
10 is a plan view showing still another embodiment of the electrode forming film shown in FIG. 2,
11 is a perspective view of a film capacitor using the electrode-forming film of the present invention.

Hereinafter, embodiments of an electrode-forming film and a film capacitor using the same according to the present invention will be described with reference to the accompanying drawings.

1 and 2, the electrode forming film 10 of the present invention includes a dielectric film 11, an electrode head 12, a first common electrode 13, a plurality of first split electrodes 14 and 14a, A second common electrode 15, a plurality of second split electrodes 16, a plurality of first fuse portions 17, a plurality of second fuse portions 18 and a plurality of third fuse portions 19 do.

The dielectric film 11 generally supports the electrode forming film 10 of the present invention, and the electrode head portion 12 is formed on the upper surface of the dielectric film 11. The first common electrode 13 is connected to the electrode head 12 on the upper surface of the dielectric film 11 and the first divided electrodes 14 and 14a are connected to the upper surface of the dielectric film 11, The first common electrode 13 is spaced apart from the first common electrode 13 in the first direction X and in the second direction Y perpendicular to the first direction X. [ The second common electrode 15 is formed on the upper surface of the dielectric film 11 so as to be separated from the first divided electrodes 14 and 14a in the first direction X and includes a plurality of second divided electrodes 16, Are spaced apart from each other in the first direction X by a second common electrode 15 on the upper surface of the dielectric film 11 and are spaced apart from each other in a second direction Y perpendicular to the first direction X . A plurality of first fuse portions 17 are formed between the first common electrode 13 and the plurality of first split electrodes 14 and 14a so that a current flowing in and out through the electrode head portion 12 is applied to the first common electrode 13, And a plurality of second fuse portions 18 are connected to the plurality of first split electrodes 14 and 14a and the second common electrode 15 so as to flow to the plurality of first split electrodes 14 and 14a, So that a current flowing into and out of the first common electrode 13 flows to the first divided electrodes 14 and 14a and the second common electrode 15, respectively. The plurality of third fuse portions 19 are formed between the second common electrode 15 and the plurality of second split electrodes 16 so that a current flowing into and out of the plurality of first split electrodes 14, So as to flow to the common electrode 15 and the plurality of second split electrodes 16.

The structure of the electrode-forming film 10 of the present invention will be described in detail as follows.

1, the dielectric film 11 is made longer in the second direction Y than the first direction X. The material of the dielectric film 11 is polypropylene, polyethylene terephthalate polyester (PETP) ), Polyphenylene sulfide (PPS), polyethylene naphthalate (PEN), polyether imide (PEI) or polycarbonate (PC). Here, the first direction X is the longitudinal direction of the dielectric film 11, and the second direction Y is the width direction of the dielectric film 11.

The electrode head 12 has a plurality of positioning mark grooves 12a spaced from each other in the second direction Y on the upper surface thereof. The plurality of positioning mark grooves 12a are formed on the upper surface of each of the electrode head portions 12 in a second direction Y so as to be spaced apart from each other and have a thickness T1 A first common electrode 13, a second common electrode 15, a first split electrode 14, 14a, a second split electrode 16, a first fuse portion 17, Is made of a metal material such as aluminum or copper so as to be larger than the thickness T2 of the second fuse portion 18 and the third fuse portion 19, thereby improving the equivalent series resistance characteristic. Although the thickness T2 is described only in the first common electrode 13 as shown in Fig. 1, the second common electrode 15, the first divided electrodes 14 and 14a, the second divided electrode 16, The first fuse portion 17, the second fuse portion 18 and the third fuse portion 19 are formed to have the same thickness T2 as the first common electrode 13, respectively.

The first common electrode 13 and the second common electrode 15 are formed of at least one first common electrode 13 and one or more second common electrodes 15, Are formed on the upper surface of the dielectric film 11 so as to be spaced apart from each other in the second direction Y. [ The at least one first common electrode 13 and the at least one second common electrode 15 are formed of a metal material such as aluminum or copper, respectively.

The one or more first common electrodes 13 are respectively connected to four to twelve first split electrodes 14 and 14a by four to twelve first fuse portions 17 at the other end, Four to twelve first split electrodes 14 and 14a are connected by four to twelve second fuse portions 18 at one end of each of the electrodes 15 and four to twelve first split electrodes 14 and 14a are connected at the other end thereof. And is connected to four to twelve second split electrodes 16 by the fuse portion 19.

For example, as shown in FIG. 2, one first common electrode 13 is connected to six first fuse portions 17 at the other end, and six first fuse portions 17 are connected to a first split And the six first split electrodes 14 and 14a are connected to the electrodes 14 and 14a through the six first fuse portions 17 at the other end. Three or six first divided electrodes 14 and 14a are connected to one end of one or more second common electrodes 15 by six second fuse portions 18 and six first divided electrodes 14 and 14a are connected to the other end Three or six second split electrodes 16 are connected by three or six third fuse portions 19, respectively. As described above, the electrode-forming film 10 of the present invention has at least one second common electrode 15 formed between a plurality of first divided electrodes 14 and 14a and a plurality of second divided electrodes 16, The heat generated in the central portion of the electrode forming film 10 in which heat is generated most easily is easily discharged through the second common electrode 15 to improve the heat resistance characteristics of the electrode forming film 10.

The at least one second common electrode 15 is formed so that the thickness T2 is equal to the thickness T2 of the first common electrode 13 as shown in Fig. In another embodiment of the at least one second common electrode 15, the thickness T2 of one side and the other side is formed to be equal to the thickness T2 of the first common electrode 13 as shown in FIG. 3, The thickness T3 of the central portion of the first common electrode 13 is formed to be larger than the thickness T2 of the first common electrode 13 to improve the equivalent series resistance characteristic of the central portion where current is concentrated, .

The plurality of first split electrodes 14 and 14a and the plurality of second split electrodes 16 are formed such that the surface area thereof is smaller than the surface area of the first common electrode 13 or the second common electrode 15, And the surface area is the length of each of the first division electrodes 14 and 14a, the second division electrode 16, the first common electrode 13 and the second common electrode 15 in the first direction X N2, N3, W1, W2 of the first direction (M1, M2, L1, L2) and the second direction (Y). That is, the surface areas of the first divided electrodes 14 and 14a and the second divided electrodes 16 are set such that the lengths L1, L2 and L3 of the first direction X and the length W1 of the second direction Y , W2), the length L1 is formed such that the length L2 is larger, and the length L3 is formed to be equal to one of the lengths L1 and L2. The surface areas of the first common electrode 13 and the second common electrode 15 are set such that the lengths M1 and M2 of the first common electrode 13 and the second common electrode 15 in the first direction X The length M1 is calculated when calculating the minimum area of the first common electrode 13 and the length N1 is calculated by multiplying the length N2 by the length N1, And the length N2 is formed to be larger than the length N3.

As shown in FIG. 2, the plurality of first split electrodes 14 and 14a includes two to twelve first long axis split electrodes 14 and two to twelve first unaxial split electrodes 14a. 2 to 12 first long axis split electrodes 14 and 2 to 12 first unaxial split electrodes 14a are arranged alternately in the second direction Y and the first long axis split electrodes 14, The length of the first uniaxial split electrode 14a in the first direction X is equal to the length of the first long axis electrode 14 in the first direction X, Is larger than the length (L2) of the first uniaxial split electrode 14a in the first direction (X).

2 to 12 first-axis split electrodes 14 and 2 to 12 first unaxial split electrodes 14a are arranged in a line in the second direction Y, as shown in FIG. 2, Respectively. That is, the other end of the first long axis split electrode 14 and the other end of the first unaxial split electrode 14a are arranged to be offset from each other, so that the ends of the first long axis split electrode 14 and the first short axis split electrode 14a The first fuse part 17 connected to the first fuse part 17 is arranged to be staggered with respect to the first fuse part 17 so that the evaporation material generated by each operation is adhered to the neighboring first fuse part 17, .

2 to 12 first long axis split electrodes 14 and 2 to 12 first unaxial split electrodes 14a are arranged such that one end and the other end are staggered in the second direction Y as shown in FIG. So that the centers of the first directions X are aligned with each other. That is, one end and the other end of the first long axis split electrode 14 and the first short axis split electrode 14a are arranged so as to be offset from each other, so that the first long axis split electrode 14 and the first short axis split electrode 14a A plurality of first fuse portions 17 and a plurality of second fuse portions 18 connected to the ends of one side and the other side are arranged to be staggered from each other so that the evaporation material generated by each operation is connected to the adjacent first fuse portion 17 or the second fuse portion 18 to prevent the first fuse portion 17 and the second fuse portion 18 from operating abnormally.

The plurality of second split electrodes 16 are formed such that the length L3 of the first direction X and the length W1 of the second direction Y are equal to each other as shown in FIG. Another embodiment of such a plurality of second split electrodes 16 is shown in Fig. The plurality of second split electrodes 16 shown in FIG. 4 includes two to twelve second long axis split electrodes 16a and two to twelve second uniaxial split electrodes 16b.

2 to 12 second division axes 16a and 2 to 12 second division axes 16b are arranged alternately in the second direction Y and the second division axes 16a and 16b are arranged alternately in the second direction Y, The two uniaxially split electrodes 16b have the same length W1 in FIG. 2 in the second direction Y and the lengths L3 and L4 in the first direction X correspond to the second long axis split electrode 16a are formed such that the length L3 is larger than the length L4 of the second uniaxially-divided electrode 16b in the first direction X, and each of the first direction X, As shown in FIG. 4, one end of the second fuse portion 18 and the third fuse portion 19 are arranged so as to be offset from each other, so that the evaporation material generated by the operation of the second fuse portion 18 and the third fuse portion 19 is connected to the adjacent second fuse portion 18 or the third fuse portion 19, as shown in Fig.

Another embodiment of the plurality of first divided electrodes 14, 14a is shown in Figs. 5 and 6. Fig. As shown in FIGS. 5 and 6, a plurality of first divided electrodes 14 and 14a each have a plurality of rhombic patterns 21 and a plurality of circular patterns 22 formed therein, and a plurality of rhombic patterns 21 and / A plurality of circular patterns 22 are formed to be connected to two or more auxiliary fuse portions 23 with each other. A plurality of second divided electrodes 16 as in the case of the plurality of first divided electrodes 14 and 14a and a plurality of rhombic patterns 21 and a plurality of circular patterns 22 are formed on the inner side in FIGS. 5 and 6 A plurality of rhombic patterns 21 and a plurality of circular patterns 22 are formed to be connected to two or more auxiliary fuse portions 23 with each other.

A plurality of first split electrodes 14 and 14a, a plurality of second split electrodes 16, a plurality of first fuse units 17, a plurality of second fuse units 18 and a plurality of third fuse units 19 ) Are shown in Figs. 7-9. 7 to 9, a plurality of first split electrodes 14 and 14a, a plurality of second split electrodes 16, a plurality of first fuse portions 17, a plurality of second fuse portions 18, The plurality of third fuse portions 19 are each formed in a rectangular shape from which edges are removed to prevent the electric field from being concentrated at the edge portions due to edge currents. Here, the plurality of first fuse portions 17, the plurality of second fuse portions 18, and the plurality of third fuse portions 19 are evaporated by the overcurrent to be disconnected, 10) is operated stably even when an overcurrent occurs.

10, the dielectric film 11, the electrode head 12, the first common electrode 13, the plurality of first split electrodes 14 A plurality of first fuse portions 17 and a plurality of second fuse portions 18 and a plurality of third fuse portions 19a and 19a, a second common electrode 15, a plurality of second split electrodes 16, a plurality of first fuse portions 17, ).

The electrode forming film 10 according to another embodiment of the present invention includes the dielectric film 11 of the above electrode forming film 10, the electrode head 12, the first common electrode 13, A plurality of first fuse portions 17, a plurality of second fuse portions 18 and a plurality of third split electrodes 14 and 14a, a second common electrode 15, a plurality of second split electrodes 16, And is formed in the same manner as the fuse portion 19. However, the electrode forming film 10 according to still another embodiment of the present invention is different from the electrode forming film 10 of the first embodiment in that the first common electrode 13, the first divided electrodes 14 and 14a, The outer shape and arrangement interval of the electrode 15, the plurality of second split electrodes 16, the plurality of first fuse portions 17, the plurality of second fuse portions 18, and the plurality of third fuse portions 19 Respectively.

The electrode forming film 10 according to still another embodiment of the present invention will now be described with reference to FIG. 10 only in the difference of the electrode forming film 10 described above.

The first common electrode 13 is formed on the upper surface of the dielectric film 11 so as to be spaced apart from the first common electrode 13. Each of the first common electrodes 13 extends in the second direction Y, Is formed to be smaller than the length S3 of the second common electrode 15 in the second direction Y and the length in the width direction of the electrode forming film 10 in the first direction X, do.

As shown in FIG. 10, the first common electrode 13 is formed in such a manner that one end of the first common electrode 13 is formed in an I 'shape and the other end of the first common electrode 13 is connected in a second direction Y in a plurality of'> 'shapes. The first common electrode 13 has a plurality of first fuse portions 17 spaced apart from each other by a distance P1 or P2 in a second direction Y and a second direction X at the other end. For example, the first common electrode 13 is formed such that two first fuse portions 17 are connected to the ends of a plurality of '>' shaped terminals, and two first fuse portions 17 are connected to each other Are spaced apart from each other by an interval (P1, P2) in a first direction (X) and a second direction (Y), respectively.

The first divided electrodes 14 are formed such that the length S2 of each second direction Y is smaller than the length S3 of the second common electrode 13 in the second direction Y as shown in FIG. Or the length S4 of the second division electrode 16 in the second direction Y, and each of the one end and the other end is formed in a "> " shape. That is, each of the first split electrodes 14 is formed in a single "> " shape at one side and the other end, and the first and second fuse portions 17 and 17 ' Two of the first fuse portions 17 are connected to each other in the first direction X and the second direction Y, respectively. In addition, the other end of the second fuse portion 18 formed in a > " -shaped shape is connected to the second fuse portion 18 of the second fuse portion 18 in the first direction X and the second direction Y And a plurality of first fuse portions 17 and a plurality of second fuse portions 18 are spaced apart from each other in the first direction X and the second direction Y by intervals P1 and P2, One split electrode 14 and the other split electrode 14, respectively.

The second common electrode 15 is formed such that the length S3 in the second direction Y is greater than the length S1 in the second direction Y of the first common electrode 13, And a plurality of " > " -shaped ends of the one side and the other side are connected to each other in the second direction Y. [ That is, the second common electrode 15 is formed such that a plurality of '>' -shaped shapes are arranged in the second direction Y and one end and the other end of the second common electrode 15 are connected to each other. The second common electrode 15 has a plurality of second fuse portions 18 spaced apart from each other in a first direction X and a second direction Y at one end thereof, The third fuse portions 19 are connected to each other in the first direction X and the second direction Y, For example, the second common electrode 15 has a plurality of '>' -shaped second fuse portions 18 formed at one end of each of the first and second common electrodes 15 in a first direction X and a second direction Y And two third fuse portions 19 are formed in the first direction X and the second direction Y so as to be spaced apart from each other by the intervals P1 and P2, Are spaced apart from each other by an interval (P1, P2). The second common electrode 15 and the first common electrode 13 are arranged such that the center points V1 and V2 of the lengths of the second direction Y are perpendicular to the first direction X That is, on the upper surface of the dielectric film 11 so as to be perpendicular to each other like a straight line V3.

The plurality of second split electrodes 16 are formed such that the length S4 of each second direction Y is less than the length S2 of the second split direction Y of the first split electrode 14, And each end of one side is formed in a slash (slash) or a backslash shape, and the other end is formed in an ' ' shape. One end of the third fuse portion 19 of the plurality of third fuse portions 19 is connected to one end of the slash or reverse slash type. For example, the plurality of second split electrodes 16 are formed such that one third fuse unit 19 is connected to one end of each slash or reverse slash type, and the third fuse unit 19 Are spaced apart from each other in the first direction X by an interval Pl.

The first common electrode 13, the plurality of first division electrodes 14 and 14a, the second common electrode 15, the plurality of second division electrodes 14a and 14b of the electrode forming film 10 according to another embodiment of the present invention, A plurality of first fuse portions 17, a plurality of second fuse portions 18 and a plurality of third fuse portions 19 are formed in a plate shape having edges removed, The lengths of the first division electrode 14, the second common electrode 15 and the plurality of second division electrodes 16 in the second direction Y may be the same or different. The electrode forming film 10 according to another embodiment of the present invention is formed such that the length S3 of the second common electrode 15 in the second direction Y is larger than the length S3 of the second common electrode 15 in the second direction And the length S4 of the plurality of second divided electrodes 16 in the second direction Y is larger than the length S1 of the first divided electrode 14 in the second direction Y, And the first to third fuse portions 17, 18, and 19 are connected to the respective ends of the > " > Capacitance increase can be realized and the area differentiation improves the equivalent series resistance characteristic by evenly distributing the overall current density as a whole.

The first common electrode 13, the plurality of first division electrodes 14, the second common electrode 15 and the plurality of second division electrodes 16 are used as a segment electrode, Since the lengths S1, S2, S3, and S4 of the respective segment electrodes in the second direction Y are different from each other, the areas of the upper surfaces are formed to be different from each other.

For example, the length S1 of the first common electrode 13 in the second direction Y is smaller than the length S3 of the second common electrode 15 in the second direction Y, The length S4 of the second divisional electrode 16 in the second direction Y is formed to be larger than the length S2 of the second divisional electrode 14 in the second direction Y, And the length of each first direction X is set so that the area of the first common electrode 13 is smaller than the area of the second common electrode 15, Is set to be larger than the area of the electrode (14), and the area of the second split electrode (16) is set to be smaller than the area of the first split electrode (14). That is, the area of the first common electrode 13 is smaller than the area of the second common electrode 15 and larger than the area of the first division electrode 16, and the area of the second division electrode 16 is larger than the area of the first division electrode 16 16, the area of each segment electrode is disposed on the upper surface of the dielectric film 11 differently depending on positions, thereby reducing the resistance of the electrode forming film 10 while maintaining security, have.

The structure of the film capacitor using the electrode forming film 10 of the present invention having the above-described structure will be described with reference to the accompanying drawings.

As shown in FIG. 11, the film capacitor using the electrode forming film 10 of the present invention is composed of two or more electrode forming films 10 and a pair of external electrodes 30.

The electrode forming film 10 of each of the two or more electrode forming films 10 includes a dielectric film 11, an electrode head 12, a first common electrode 13, a plurality of first split electrodes 14 and 14a, A second common electrode 15, a plurality of second split electrodes 16, a plurality of first fuse portions 17, a plurality of second fuse portions 18 and a plurality of third fuse portions 19 do. The two or more electrode-forming films 10 having such a configuration are the same as the above-described electrode-forming film 10, and thus the detailed description thereof will be omitted. The electrode head portions 12 are located on one side and the other side, The common electrode 13 and the plurality of second divisional electrodes 16 are stacked so that the second common electrode 15 and the plurality of first divisional electrodes 14 and 14a overlap each other.

The pair of external electrodes 30 are connected to the electrode head portions 12 of the two or more electrode-forming films 10, respectively. That is, one of the pair of external electrodes 30 is connected to the electrode head portion 12 located at one side of the electrode forming film 10, and the other is connected to the electrode head 12 located at the other side of the electrode forming film 10. [ And the current is supplied to and taken out from the electrode forming film 10. [ The electrode head 12 provides a plurality of positioning mark grooves 12a for alignment of the electrode-forming film 10 when stacking two or more electrode-forming films 10 thereon. For example, as shown in FIG. 11, a plurality of '┠' shaped positioning mark grooves 12a (see FIG. 11) formed on the upper surface of the electrode head 12 in the stacking state, The electrode forming film 10 can be easily stacked.

As described above, the electrode-forming film of the present invention and the film capacitor using the same can minimize the capacity reduction due to the operation of the fuse portion, and when the fuse portion is operated and formed by staggering the arrangement position of the fuse portion, It is possible to prevent the fuse unit from being operated normally.

The electrode-forming film of the present invention and the film capacitor using the same can be applied to the capacitor manufacturing industry.

10: electrode forming film 11: dielectric film
12: electrode head part 13: first common electrode
14, 14a: a plurality of first split electrodes 15: a second common electrode
16: second split electrode 17: first fuse part
18: second fuse unit 19: third fuse unit

Claims (21)

A dielectric film;
An electrode head formed on an upper surface of the dielectric film;
A first common electrode formed on an upper surface of the dielectric film to be connected to the electrode head;
A plurality of first split electrodes spaced apart from each other in a first direction on a top surface of the dielectric film and spaced apart from each other in a second direction orthogonal to the first direction;
A second common electrode formed on an upper surface of the dielectric film so as to be spaced apart from the first divided electrode in a first direction;
A plurality of second split electrodes spaced apart from each other in a first direction on the upper surface of the dielectric film and spaced apart from each other in the second direction;
A plurality of first fuse portions formed between the first common electrode and the plurality of first split electrodes to allow a current to flow into and out of the first common electrode and a plurality of first split electrodes through the electrode head portion;
A plurality of second fuse units formed between the plurality of first split electrodes and the second common electrode to cause a current flowing into and out of the first common electrode to flow into the plurality of first split electrodes and the second common electrode;
And a plurality of third fuse units formed between the second common electrode and the plurality of second split electrodes to allow current to flow into and out of the plurality of first split electrodes toward the second common electrode and the plurality of second split electrodes, ,
The electrode head unit includes a first common electrode, a second common electrode, and a second common electrode formed on the upper surface of the substrate, the positioning common mark grooves formed in a plurality of ' Wherein the first electrode, the second electrode, the first split electrode, the second split electrode, the first fuse portion, the second fuse portion, and the third fuse portion are formed of a metal material. The method according to claim 1,
Wherein the dielectric film is longer than the first direction in a second direction, the first direction is a longitudinal direction of the dielectric film, the second direction is a width direction of the dielectric film, and the material is polypropylene, (PET), polyphenylene sulfide (PPS), polyethylene naphthalate (PEN), polyether imide (PEI), and polycarbonate (PC) ) Is selected and used. The method according to claim 1,
Wherein the electrode head part is formed on the upper surface thereof with a plurality of positioning mark grooves spaced apart from each other in the second direction. delete The method according to claim 1,
Wherein the first common electrode and the second common electrode each comprise at least one first common electrode, and the at least one first common electrode has four to twelve first divided electrodes at the other end, Four or twelfth first divided electrodes are connected to one end of one or more second common electrodes by four to twelve second fuse portions and fourth to twelfth third fuses are connected to the other end of the one or more second common electrodes, And the second split electrode is connected to 4 to 12 second split electrodes. 6. The method of claim 5,
Wherein the at least one first common electrode and the at least one second common electrode are each formed of a metal material and the at least one second common electrode is formed to have a thickness equal to the thickness of the first common electrode, Is formed so as to be equal to the thickness of the first common electrode, and the thickness of the central portion between one side and the other side is formed to be larger than the thickness of the first common electrode. The method according to claim 1,
The plurality of first split electrodes and the plurality of second split electrodes are formed such that the surface area thereof is smaller than the surface area of the first common electrode or the second common electrode, Wherein the length of the first common electrode and the length of the second common electrode in the first direction are calculated by multiplying the first common electrode and the second common electrode by the length in the first direction and the length in the second direction, respectively. The method according to claim 1,
Wherein the plurality of first split electrodes comprise two to twelve first long axis split electrodes and two to twelve first uniaxial split electrodes, the two to twelve first long axis split electrodes and the two to twelve first short axis The first long axis split electrode and the first uniaxial split electrode are the same in length in the second direction and the length in the first direction is equal to the length of the first long axis split electrode in the second direction, Wherein the first direction is longer than the first directional length of the first uniaxially split electrode. 9. The method of claim 8,
Wherein each of the 2 to 12 first long axis split electrodes and the 2 to 12 first unaxial split electrodes are arranged such that one end of each of the 2 to 12 first uniaxial split electrodes is offset from the other end in a second direction, film. 9. The method of claim 8,
The two first to twelve first long axis split electrodes and the two to twelve first uniaxial split electrodes are arranged such that the centers of the first and second uniaxial split electrodes are aligned with each other so that one end and the other end are staggered in the second direction Wherein the electrode is formed of a metal. The method according to claim 1,
Wherein the plurality of second split electrodes are formed such that a length in a first direction and a length in a second direction are equal to each other. The method according to claim 1,
Wherein the plurality of second split electrodes comprise two to twelve second long axis split electrodes and two to twelve second uniaxial split electrodes, wherein the two to twelve second long axis split electrodes and the two to twelve second short axis The second long axis split electrodes and the second short axis split electrodes are arranged such that the lengths of the second long axis split electrodes and the second long axis split electrodes are equal to each other in the second direction, Wherein the first unidirectional split electrode is formed such that the first direction is longer than the first unidirectional length of the second unimpeded electrode, and each of the second unidirectional split electrodes is arranged such that the other ends thereof are aligned in a row, Forming film. The method according to claim 1,
The plurality of first split electrodes and the plurality of second split electrodes each include a plurality of rhombic patterns or a plurality of circular patterns, and the plurality of rhombic patterns or the plurality of circular patterns are connected to two or more auxiliary fuses Wherein the electrode-forming film is a film. The method according to claim 1,
The plurality of first split electrodes, the plurality of second split electrodes, the plurality of first fuse units, the plurality of second fuse units, and the plurality of third fuse units may each have a rectangular shape with their edges removed. Wherein the electrode forming film is characterized by: The method according to claim 1,
Wherein the at least one first common electrode and the at least one second common electrode are arranged on the upper surface of the dielectric film so as to be spaced apart from each other in the second direction on the upper surface of the dielectric film, And the electrode forming film is formed so as to cover the electrode. A dielectric film;
An electrode head formed on an upper surface of the dielectric film;
A first common electrode formed on an upper surface of the dielectric film to be connected to the electrode head;
A plurality of first split electrodes spaced apart from each other in a first direction on a top surface of the dielectric film and spaced apart from each other in a second direction orthogonal to the first direction;
A second common electrode formed on an upper surface of the dielectric film so as to be spaced apart from the first divided electrode in a first direction;
A plurality of second split electrodes spaced apart from each other in a first direction on the upper surface of the dielectric film and spaced apart from each other in the second direction;
A plurality of first fuse portions formed between the first common electrode and the plurality of first split electrodes to allow a current to flow into and out of the first common electrode and a plurality of first split electrodes through the electrode head portion;
A plurality of second fuse units formed between the plurality of first split electrodes and the second common electrode to cause a current flowing into and out of the first common electrode to flow into the plurality of first split electrodes and the second common electrode;
And a plurality of third fuse units formed between the second common electrode and the plurality of second split electrodes to allow current to flow into and out of the plurality of first split electrodes toward the second common electrode and the plurality of second split electrodes, ,
Wherein a length of the second common electrode in a second direction is greater than a length of the first common electrode in a second direction, and a length of each of the plurality of first divided electrodes in a second direction is greater than a length of the first common electrode Wherein a length of each of the plurality of second split electrodes in a second direction is formed to be smaller than a length of the first split electrode in a second direction, The lengths of the electrodes, the second common electrode, and the plurality of second split electrodes in the second direction are different from each other,
The first common electrode and the second common electrode are formed on the upper surface of the dielectric film so that the middle point of the length in the second direction is perpendicular to each other in the first direction orthogonal to the second direction,
The first common electrode of the first common electrode, the plurality of first divided electrodes, the second common electrode, and the plurality of first divided electrodes may have one end formed in an ''' Shaped first and second fuses are connected to each other in the second direction and a plurality of first fuse portions are connected to each other at the other end in a second direction and a first direction,
The plurality of first split electrodes are each formed in a "" -shaped shape at one end and the other end, and two first fuse portions of a plurality of first fuse portions at one end are connected to each other in the first direction and the second direction. And two second fuse portions of the plurality of second fuse portions are spaced apart from each other in the first direction and the second direction,
The second common electrode is formed by connecting a plurality of '>' shaped portions at one end and the other end at a second direction, and a plurality of second fuse portions at one end are spaced apart from each other in the first direction and the second direction. And a plurality of third fuse units are connected to each other at the other end in a first direction and a second direction,
The plurality of second split electrodes are each formed in a slash shape or a back slash shape at one end thereof and at one end of one third fuse portion of the plurality of third fuse portions at one end thereof, Is formed on the surface of the electrode-forming film. delete 17. The method of claim 16,
The length of the first common electrode in the second direction is formed to be smaller than the length of the second common electrode in the second direction and larger than the length of the first split electrode in the second direction, The length of the first common electrode, the length of the first common electrode, the length of the first common electrode, the length of the first common electrode, the length of the first common electrode, Wherein the area of the second divided electrode is set to be smaller than the area of the second common electrode and larger than the area of the first divided electrode, and the area of the second divided electrode is set to be smaller than the area of the first divided electrode. A first common electrode, a plurality of first split electrodes, a second common electrode, a plurality of second split electrodes, a plurality of first fuse portions, a plurality of second fuse portions, and a plurality of third fuse portions, At least two electrode-forming films each having a dielectric film arranged so as to be spaced apart from each other on a surface thereof;
And a pair of external electrodes connected to the electrode head portions of the two or more electrode forming films,
The two or more electrode-forming films may be formed such that the electrode head portion is located at one side and the other side, respectively, and the first common electrode and the plurality of second divided electrodes are overlapped with each other, and the second common electrode and the plurality of first divided electrodes One of the pair of outer circumferential electrodes is connected to an electrode head portion located on one side of the electrode forming film and the other is connected to an electrode head portion located on the other side of the electrode forming film,
Wherein the two or more electrode-forming films are stacked in alignment on a plurality of '┠' shaped positioning mark grooves formed on the upper surface of the electrode head in stacking so as to be overlapped with each other. . 20. The method of claim 19,
Wherein the at least two electrode forming films each comprise a dielectric film;
An electrode head formed on an upper surface of the dielectric film;
A first common electrode formed on an upper surface of the dielectric film to be connected to the electrode head;
A plurality of first split electrodes spaced apart from each other in a first direction on a top surface of the dielectric film and spaced apart from each other in a second direction orthogonal to the first direction;
A second common electrode formed on an upper surface of the dielectric film so as to be spaced apart from the first divided electrode in a first direction;
A plurality of second split electrodes spaced apart from each other in a first direction on the upper surface of the dielectric film and spaced apart from each other in the second direction;
A plurality of first fuse portions formed between the first common electrode and the plurality of first split electrodes to allow a current to flow into and out of the first common electrode and a plurality of first split electrodes through the electrode head portion;
A plurality of second fuse units formed between the plurality of first split electrodes and the second common electrode to cause a current flowing into and out of the first common electrode to flow into the plurality of first split electrodes and the second common electrode;
And a plurality of third fuse units formed between the second common electrode and the plurality of second split electrodes to allow current to flow into and out of the plurality of first split electrodes toward the second common electrode and the plurality of second split electrodes, ,
Wherein the electrode head portion is formed with a plurality of positioning mark grooves formed on the upper surface thereof, the positioning mark grooves being spaced apart from each other. delete
KR1020150045472A 2014-09-02 2015-03-31 Electrode forming film and film capacitor using the same KR101781512B1 (en)

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KR102063782B1 (en) * 2018-07-27 2020-01-08 삼화콘덴서공업 주식회사 Film capacitor
KR102529230B1 (en) * 2021-10-22 2023-05-08 삼화콘덴서공업 주식회사 Metalized film and flim capacitor using the same

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JP2013004714A (en) * 2011-06-16 2013-01-07 Nichicon Corp Metalized film capacitor
JP2013214780A (en) * 2013-07-23 2013-10-17 Nichicon Corp Metalized film capacitor

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JP2013004714A (en) * 2011-06-16 2013-01-07 Nichicon Corp Metalized film capacitor
JP2013214780A (en) * 2013-07-23 2013-10-17 Nichicon Corp Metalized film capacitor

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