JP2606394B2 - Metallized film capacitors - Google Patents
Metallized film capacitorsInfo
- Publication number
- JP2606394B2 JP2606394B2 JP740190A JP740190A JP2606394B2 JP 2606394 B2 JP2606394 B2 JP 2606394B2 JP 740190 A JP740190 A JP 740190A JP 740190 A JP740190 A JP 740190A JP 2606394 B2 JP2606394 B2 JP 2606394B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- zinc
- metallized film
- aluminum
- fuse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、電気機器，通信機器，各種電源などの力率
改善などに使用される金属化フイルムコンデンサに関す
る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metallized film capacitor used for improving a power factor of an electric device, a communication device, various power supplies, and the like.
従来の技術 金属化フイルムコンデンサは蒸着金属電極の採用によ
り小型化されてきた。2. Description of the Related Art Metallized film capacitors have been miniaturized by employing vapor-deposited metal electrodes.
その構造は第３図，第４図に示すように絶縁フイルム
10の片面に亜鉛の蒸着電極11を形成し、それを積層巻回
し、さらに溶射亜鉛電極12を形成したものであった。The structure is as shown in FIGS. 3 and 4.
10, a zinc-deposited electrode 11 was formed on one surface, and the resulting electrode was laminated and wound, and a sprayed zinc electrode 12 was further formed.
第３図，第４図において13の電極部は段付蒸着を施し
て電極膜厚を厚くして自己回復性を良くし、レーザー加
工法により空白部14と分割部15を形成し、ヒューズ部16
を形成していた。In FIGS. 3 and 4, the electrode portion 13 is step-deposited to increase the electrode film thickness to improve the self-healing property, and to form a blank portion 14 and a divided portion 15 by a laser processing method. 16
Had formed.
発明が解決しようとする課題 しかしながら上記のような構成では、ヒューズ遮断
後、絶縁耐力が低下し再点孤を起すことが多かった。Problems to be Solved by the Invention However, in the above-described configuration, after the fuse is cut off, the dielectric strength is often reduced and re-ignition often occurs.
これはコンデンサが破壊し、ヒューズ部の亜鉛が溶断
した時、半導体の酸化亜鉛（ZnO）が形成するためと考
えられる。This is presumably because when the capacitor is broken and the zinc in the fuse is blown, zinc oxide (ZnO) is formed as a semiconductor.
本発明はこのような従来の課題を解決するもので、ヒ
ューズ部遮断後は再点孤を起さない金属化コンデンサの
提供を目的とする。An object of the present invention is to solve such a conventional problem, and an object of the present invention is to provide a metallized capacitor which does not re-ignite after a fuse is cut off.
課題を解決するための手段 本発明は上記課題を解決するため、少なくとも一方の
電極は、溶射金属電極と接触する近傍を絶縁フイルムの
上にアルミニウム、そのアルミニウムの上に亜鉛を形成
した積層分割電極とし、その積層分割電極に間欠的に空
白部を設け、積層分割電極以外は亜鉛からなる１層分割
電極とし、積層分割電極の抵抗を１層分割電極の抵抗よ
り低い構成とした。Means for Solving the Problems In order to solve the above-mentioned problems, at least one of the electrodes is a laminated divided electrode in which aluminum is formed on an insulating film and zinc is formed on the aluminum in the vicinity of contact with a sprayed metal electrode. A blank portion is provided intermittently in the laminated divided electrode, a single-layer divided electrode made of zinc is used for other than the laminated divided electrode, and the resistance of the laminated divided electrode is lower than the resistance of the single-layer divided electrode.
作用 本発明は上記した構成によって、ヒューズ部が溶断し
た時、絶縁体の酸化アルミニウム（Al2O3）ができるた
めヒューズ部溶断後の再点孤がなくなる。Operation According to the present invention, when the fuse is blown, the insulating aluminum oxide (Al 2 O 3 ) is formed when the fuse is blown, so that re-ignition after the blow of the fuse is eliminated.
実施例 以下本発明の実施例について図面を用いて説明する。Embodiments Embodiments of the present invention will be described below with reference to the drawings.
第１図，第２図において従来例と相異する点は、一方
の電極１を、溶射金属電極12と接触する近傍を絶縁フイ
ルム（厚さ６μｍのポリプロピレンフイルム）10の上に
真空蒸着法によりアルミニウム２を形成し、その上に結
晶核金属として銀を用いて真空蒸着法により亜鉛11を形
成した積層分割電極とした点である。その積層分割電極
１にレーザー加工法により空白部14と分割部15を形成
し、ヒューズ部３を設け、乾式保安機構を形成した。積
層分割電極１の膜抵抗は４〜６Ω／□、亜鉛からなる１
層分割電極17の膜抵抗は15〜20Ω／□とした。1 and 2, the difference from the conventional example is that one electrode 1 is placed on an insulating film (a 6 μm-thick polypropylene film) 10 in the vicinity of contact with the sprayed metal electrode 12 by vacuum evaporation. The difference is that aluminum 2 is formed, and zinc 11 is formed thereon by a vacuum deposition method using silver as a crystal nucleus metal to form a laminated divided electrode. A blank portion 14 and a divided portion 15 were formed on the laminated divided electrode 1 by a laser processing method, a fuse portion 3 was provided, and a dry security mechanism was formed. The film resistance of the laminated divided electrode 1 is 4 to 6 Ω / □, and is made of zinc.
The film resistance of the layer division electrode 17 was set to 15 to 20 Ω / □.
第２図におけるヒューズ部３の寸法は、Ｔ＝60,t1＝t
2＝1.5mmとした。The dimensions of the fuse section 3 in FIG. 2 are T = 60, t 1 = t
2 = 1.5 mm.
本実施例におけるコンデンサは交流380V用で、容量が
20μＦのものであった。The capacitor in this embodiment is for AC 380V, and the capacity is
It was 20 μF.
このコンデンサをJIS−Ｃ−4908に規定している保安
機構試験にかけたところ、次の表に示すように20個中20
個全数の保安機構が動作した。When this capacitor was subjected to the security mechanism test specified in JIS-C-4908, as shown in the following table,
All security mechanisms were activated.
これに対し、従来例は20個中12個しか保安機構が動作
しなかった。不動作品はすべてヒューズ部16での再点孤
によるものであった。 On the other hand, in the conventional example, only 12 out of 20 security mechanisms operated. All the non-operating products were caused by re-ignition at the fuse section 16.
また本実施例によるコンデンサは500時間連続通電し
てもアルミニウムの酸化による容量低下は認められなか
った。Further, in the capacitor according to the present example, no capacity reduction due to oxidation of aluminum was observed even after 500 hours of continuous energization.
なお、本実施例ではポリプロピレンでの例を示した
が、ポリエチレンテレフタレート，ポリカーボネイト，
ポリフェニレンサルファイドまたはこれらの組合せにお
いても同様の効果が得られた。In this embodiment, an example using polypropylene is shown, but polyethylene terephthalate, polycarbonate,
Similar effects were obtained with polyphenylene sulfide or a combination thereof.
また両面蒸着構造のコンデンサにおいても同様の効果
が得られた。The same effect was obtained with a capacitor having a double-sided vapor deposition structure.
発明の効果 以上のように本発明の金属化フイルムコンデンサによ
れば、次の効果が得られる。Effects of the Invention As described above, according to the metallized film capacitor of the present invention, the following effects can be obtained.
（１）溶射金属電極と接触する近傍の電極を、アルミニ
ウムの上に、亜鉛を形成した積層分割電極としているの
で、ヒューズ部遮断後は再点孤を起さない。(1) Since the electrode in contact with the sprayed metal electrode is a laminated divided electrode in which zinc is formed on aluminum, re-ignition does not occur after the fuse section is cut off.
（２）溶射金属電極と接触する近傍のみをアルミニウム
の上に亜鉛を形成した積層分割電極としているので、連
続通電してもアルミニウムの酸化による容量低下を起さ
ない。(2) Since only a portion in contact with the sprayed metal electrode is a laminated divided electrode in which zinc is formed on aluminum, the capacity does not decrease due to the oxidation of aluminum even when current is continuously supplied.
第１図は本発明の一実施例における乾式保安機構付金属
化フイルムコンデンサの構造の一部分を示す断面図、第
２図は同積層巻回前の斜視図、第３図は従来の金属化フ
イルムコンデンサの断面図、第４図は同積層巻回前の斜
視図である。 １……積層分割電極、２……アルミニウム、３……ヒュ
ーズ部、10……絶縁フイルム、11……亜鉛、12……溶射
電極、17……１層分割電極。FIG. 1 is a cross-sectional view showing a part of the structure of a metallized film capacitor with a dry-type security mechanism according to one embodiment of the present invention, FIG. 2 is a perspective view before the lamination and FIG. 3 is a conventional metallized film. FIG. 4 is a sectional view of the capacitor, and FIG. DESCRIPTION OF SYMBOLS 1 ... Laminated split electrode, 2 ... Aluminum, 3 ... Fuse part, 10 ... Insulated film, 11 ... Zinc, 12 ... Sprayed electrode, 17 ... Single layer split electrode.
Claims (1)
積層巻回してなる金属化フイルムコンデンサにおいて、
少なくとも一方の電極は、溶射金属電極と接触する近傍
を絶縁フイルムの上にアルミニウム、そのアルミニウム
の上に亜鉛を形成した積層分割電極とし、その積層分割
電極に間欠的に空白部を設け、積層分割電極以外は亜鉛
からなる１層分割電極とし、前記積層分割電極の抵抗を
前記１層分割電極の抵抗より低くしたことを特徴とする
金属化フイルムコンデンサ。1. A metallized film capacitor obtained by laminating and winding an insulating film having a pair of metal electrodes formed thereon.
At least one of the electrodes is a laminated divided electrode in which aluminum is formed on an insulating film and zinc is formed on the aluminum in the vicinity of the contact with the sprayed metal electrode, and a blank portion is provided intermittently in the laminated divided electrode. A metallized film capacitor characterized in that a single-layer split electrode made of zinc is used except for the electrodes, and the resistance of the multilayer split electrode is lower than that of the single-layer split electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP740190A JP2606394B2 (en) | 1990-01-17 | 1990-01-17 | Metallized film capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP740190A JP2606394B2 (en) | 1990-01-17 | 1990-01-17 | Metallized film capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03211809A JPH03211809A (en) | 1991-09-17 |
| JP2606394B2 true JP2606394B2 (en) | 1997-04-30 |
Family
ID=11664864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP740190A Expired - Lifetime JP2606394B2 (en) | 1990-01-17 | 1990-01-17 | Metallized film capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2606394B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971844A (en) * | 2017-05-09 | 2017-07-21 | 刘加彬 | A kind of capacitor Tin-zinc-aluminium metallization coating process |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631068B1 (en) | 2002-09-17 | 2003-10-07 | Parallax Power Components Llc | Segmented metallized film |
| US10083794B2 (en) * | 2015-05-11 | 2018-09-25 | Panasonic Intellectual Property Management Co., Ltd. | Metallized film capacitor |
-
1990
- 1990-01-17 JP JP740190A patent/JP2606394B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971844A (en) * | 2017-05-09 | 2017-07-21 | 刘加彬 | A kind of capacitor Tin-zinc-aluminium metallization coating process |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03211809A (en) | 1991-09-17 |
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