JPS59144114A - Dry metallized film condenser - Google Patents
Dry metallized film condenserInfo
- Publication number
- JPS59144114A JPS59144114A JP1935983A JP1935983A JPS59144114A JP S59144114 A JPS59144114 A JP S59144114A JP 1935983 A JP1935983 A JP 1935983A JP 1935983 A JP1935983 A JP 1935983A JP S59144114 A JPS59144114 A JP S59144114A
- Authority
- JP
- Japan
- Prior art keywords
- metallized film
- dry
- insulating material
- moisture permeation
- prevention plate
- 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.)
- Pending
Links
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は乾式金属化フィルムコンデンサにおいて該外装
を簡略化し、生産性の向上、工程の短縮化およびコスト
ダウンをはかるものであシ、詳しくは金属化フィルムの
幅方向端部に絶縁マージンを設けて電極を形成し、該絶
縁マージンが対向するように重ね巻回してなる保安機能
内蔵もしくは保安装置を内蔵する安全型乾式金属化フィ
ルムコンデンサにおいて、金属を溶射してなる導電層部
分に透湿防止板を被覆しかつ巻回されたコンデンサ素子
の周側面に熱可塑性絶縁材を被覆して密閉構造とするこ
とによシ、生産性の向上と工程の短縮化をはかるもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention aims to simplify the exterior of a dry-type metallized film capacitor, thereby improving productivity, shortening the process, and reducing costs. A safety type dry-type metallized film capacitor with a built-in safety function or built-in safety device, in which an electrode is formed by providing an insulating margin at the top of the capacitor, and the insulating margin is wound in layers so that the insulating margin faces each other. By covering the layers with a moisture permeation prevention plate and covering the circumferential surface of the wound capacitor element with a thermoplastic insulating material to create a sealed structure, productivity is improved and the process is shortened. It is.
従来より乾式金属化フィルムコンデンサの外装としては
ポリエステルケースにコンデンサ素子を収納して樹脂を
注入硬化させるのが最も一般的であるが、この方法は耐
電圧、耐湿性能は良好であるが、反面欠点として寸法的
な自由度が少なく、生産の合理化がはかりに＜＜、コス
トアップとなっていた。また特開昭５７−１２１２１８
号公報に記載されているようにテープ外装を施したもの
ではコンデンサ容置が異なっても上記のような生産の不
合理は少ないものの、外装厚みを得るために多く巻回す
る必要があり、テーピングのズレ、シワなどが発生し歩
留および作業性の低下を招いていた。さらに樹脂外装を
施したものでは工程は簡単であるが、外装厚みのばらつ
きが大きく、特にコンデンサ素子の平面部と端面部の肉
厚の差が大きく、端面部の肉厚を得るために多くの時間
を必要とし、作業性の低下があった。また、上記外装方
法はいず肚も樹脂注入硬化過程を経るためにさらに樹脂
硬化時間が必要で、工程短縮は困難であった。Conventionally, the most common method for the exterior of dry metallized film capacitors is to encase the capacitor element in a polyester case and inject and harden the resin, but although this method has good withstand voltage and moisture resistance, it has drawbacks. As a result, there was little freedom in terms of dimensions, and as a result of rationalization of production, costs increased. Also, JP-A-57-121218
As described in the publication, the tape exterior is not unreasonable in production even if the capacitor capacity is different, but it is necessary to wrap a lot of windings in order to obtain the thickness of the exterior. Misalignment and wrinkles occur, leading to a decline in yield and workability. Furthermore, although the process is simple for products with a resin exterior, there is a large variation in the exterior thickness, especially the difference in wall thickness between the flat part and the end face of the capacitor element. This requires time and reduces workability. In addition, the above-mentioned packaging method requires additional resin curing time because it goes through a resin injection curing process, making it difficult to shorten the process.
本発明はかかる欠点を除去し、生産性の向上と工程の短
縮化をはかるものである。The present invention aims to eliminate such drawbacks, improve productivity, and shorten the process.
以下、本発明を第１図〜第３図に示す実施例に基づいて
詳細に説明する。Hereinafter, the present invention will be explained in detail based on the embodiments shown in FIGS. 1 to 3.
第１図は安全機能を備えた乾式金属化フィルムコンデン
サ素子の要部解体斜視図で、金属化フィルム１０幅方向
端部に絶縁マージン２と幅方向に複数個の絶縁溝３を設
け、上記絶縁マージン２が対向するように巻回してコン
デンサ素子４を得、該コンデンサ素子４の両端面に金属
溶射によって導電層５を形成してリード線６を取シ付け
る。その後金属製の透湿防止板７を被僚し、さらＫその
外側を円筒状の熱可塑性絶縁材８で覆って熱溶着して密
閉構造とした。９は溶着部である。FIG. 1 is an exploded perspective view of the main parts of a dry-type metallized film capacitor element equipped with a safety function. A capacitor element 4 is obtained by winding the capacitor element 4 so that the margins 2 face each other, a conductive layer 5 is formed on both end surfaces of the capacitor element 4 by metal spraying, and a lead wire 6 is attached. Thereafter, a metal moisture permeation prevention plate 7 was attached, and the outer side of the plate was covered with a cylindrical thermoplastic insulating material 8 and thermally welded to form a sealed structure. 9 is a welded part.
本発明の乾式金嘆化フィルムコンデンサは以上のように
して構成さｎるので、構造が簡単なだめ生産性が著しく
向上し、さらに樹脂の硬化過程を含まないために工程の
短縮化が可能となった。Since the dry metal film capacitor of the present invention is constructed as described above, the structure is simple and productivity is significantly improved, and the process can be shortened because it does not include a resin curing process. Ta.
さらに金属化フィルムの幅方向に複数個の絶縁溝３を設
けているので、コンデンサが万一事故の時においても、
その時の短絡電流で絶縁溝３で区切られる部分のみ導電
層５付近の蒸着金属の飛散によって回路から解放さｎる
ために発火、発煙がなくなり、引続きコンデンサは使用
できる。このため上記簡易外装でも安全性が十分確保ざ
ｎ、かつ生産性の向上と工程の短縮化かはかｎた。Furthermore, since multiple insulating grooves 3 are provided in the width direction of the metallized film, even in the event of an accident with the capacitor,
Due to the short-circuit current at that time, only the portion separated by the insulating groove 3 is released from the circuit by scattering of the vapor-deposited metal near the conductive layer 5, so that no ignition or smoke occurs, and the capacitor can continue to be used. For this reason, it is difficult to ensure that safety is sufficiently ensured even with the above-mentioned simple exterior, and that it also improves productivity and shortens the process.
以上の実施例はコンデンサ素子に保安機能をもたせたも
のについて説明したが、その他、発火、発煙を防止する
安全装置取付の場合であ汎ば、いずれも目的を異にする
ものではない。Although the above embodiments have been described in which a capacitor element is provided with a safety function, the purpose of each embodiment is the same as long as the safety device is installed to prevent ignition or smoke generation.
また透湿防止板７を金属板としたが、ゴム、ゴム板、プ
ラスチックシートなどのいｆｎか１層またはこれらの複
層からなる他の透湿防止材であれば、本発明の目的を達
することができ、享らにこの透湿防止板７と熱可塑性絶
縁材８の密封は熱溶着以外に接着剤によってもよく、第
３図に示すように熱可塑性絶縁材８を透湿防止板７と導
電層５の間に配置してもよい。Further, although the moisture permeability prevention plate 7 is made of a metal plate, any other moisture permeation prevention material consisting of one layer or multiple layers of rubber, rubber plate, plastic sheet, etc. can achieve the object of the present invention. In addition, the moisture permeation prevention plate 7 and the thermoplastic insulating material 8 may be sealed by adhesive other than heat welding, and as shown in FIG. and the conductive layer 5.
また熱可塑性絶縁材８と透湿防止板７が接する部分の少
なくともいずれか一方に予め接着剤を塗布するか、ある
いは予め粗面化するなどして接合部の気密性を向上はせ
、保安機能をよシ確実に作動きせることができる。In addition, the airtightness of the joint is improved by applying an adhesive or roughening the surface in advance to at least one of the parts where the thermoplastic insulating material 8 and the moisture permeation prevention plate 7 come into contact. can be operated reliably.
以上のように本発明によｎばコンデンサの容量に関係な
く合理的な外装設計が可能となシ、かつ樹脂硬化工程を
含まないために大幅な生産性の向上と工程の短縮が可能
で、経済性の面においても有利となシ、工業的ならびに
実用的価値の大なるものである。As described above, the present invention enables a rational exterior design regardless of the capacity of the capacitor, and since it does not include a resin curing process, it is possible to significantly improve productivity and shorten the process. It is economically advantageous and has great industrial and practical value.
第１図は本発明の乾式金属化フィルムコンデンサ素子の
要部解体斜視図、第２園は本発明の乾式金属化フィルム
コンデンサの一実施例の断面図、第３図は本発明の乾式
金属化フイルムコンデンラの他の実施例の断面図である
。
に金属化フィルム
２：絶縁マージン
３：絶縁溝
４：コンデンサ素子
５：導電層
７：透湿防止板
８：熱可塑性絶縁材
特許出願人 日本コンデンサ工業株式会社第１図
第２図
第３図Fig. 1 is an exploded perspective view of essential parts of a dry metallized film capacitor element of the present invention, Fig. 2 is a sectional view of an embodiment of a dry metallized film capacitor of the present invention, and Fig. 3 is a dry metallized film capacitor element of the present invention. FIG. 7 is a sectional view of another embodiment of the film condenser. Metallized film 2: Insulating margin 3: Insulating groove 4: Capacitor element 5: Conductive layer 7: Moisture permeation prevention plate 8: Thermoplastic insulating material Patent applicant Nippon Capacitor Industry Co., Ltd. Figure 1 Figure 2 Figure 3
Claims (6)
けて電極を形成し、該絶縁マージンが対向するように重
ね巻回してコンデンサ素子を構成し、その端面に金属を
溶射して導電層を形成するとともに保安機能または保安
装置を内蔵してなる乾式金属化フィルムコンデンサにお
いて、上記導電層上に透湿防止板を被覆し、かつ上記コ
ンデンサ素子の周側面に熱可塑性絶縁材を被覆して密封
することを特徴とする乾式金属化フィルムコンデンサ。(1) An insulating margin is provided at the end of the metallized film in the width direction to form an electrode, the capacitor element is formed by overlapping the insulating margins so that they face each other, and a conductive layer is formed by thermally spraying metal on the end surface of the metallized film. In the dry metallized film capacitor which has a built-in safety function or safety device, the conductive layer is coated with a moisture permeation prevention plate, and the peripheral side of the capacitor element is coated with a thermoplastic insulating material. A dry metallized film capacitor characterized by hermetic sealing.
シートのいずれが１層または複層で構成さｎていること
を特徴とする特許請求の範囲第１項記載の乾式余聞化フ
ィルムコンデンサ。(2) The dry heat exchanger film according to claim 1, wherein the moisture permeation prevention plate is composed of a single layer or multiple layers of a metal plate, a rubber plate, or a plastic sheet. capacitor.
のから構成されていることを特徴とする特許請求の範囲
第１項記載の乾式金属化フィルムコンデンサ。(3) The dry metallized film capacitor according to claim 1, wherein the thermoplastic insulating material is cylindrical or sheet-shaped.
は接着剤によって一体化さｎていることを特徴とする特
許請求の範囲第１項記載の乾式金属化フィルムコンデン
サ。(4) The dry metallized film capacitor according to claim 1, wherein the thermoplastic insulating material and the moisture permeation prevention plate are integrated by thermal welding or adhesive.
少なくともいずれか一方に予め接着剤が塗布されている
ことを特徴とする特許請求の範囲第４項記載の乾式金属
化フィルムコンデンサ。(5) The dry metallized film capacitor according to claim 4, wherein an adhesive is applied in advance to at least one of the portions where the thermoplastic insulating material and the moisture permeation prevention plate are in contact with each other.
少なくともいず几か一方の表面が予め粗面化されている
ことを特徴とする特許請求の範囲第４項または第５項記
載の乾式金属化フィルムコンデンサ。(6) Claim 4 or 5, characterized in that at least one surface of the portion where the thermoplastic insulating material and the moisture permeation prevention plate contact is roughened in advance. dry metalized film capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1935983A JPS59144114A (en) | 1983-02-07 | 1983-02-07 | Dry metallized film condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1935983A JPS59144114A (en) | 1983-02-07 | 1983-02-07 | Dry metallized film condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59144114A true JPS59144114A (en) | 1984-08-18 |
Family
ID=11997170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1935983A Pending JPS59144114A (en) | 1983-02-07 | 1983-02-07 | Dry metallized film condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59144114A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4325657Y1 (en) * | 1966-03-28 | 1968-10-26 | ||
| JPS51111654A (en) * | 1975-03-26 | 1976-10-02 | Marukon Denshi Kk | Method of making organic film capcitors |
| JPS51150665A (en) * | 1975-06-20 | 1976-12-24 | Nichicon Capacitor Ltd | Capacitor |
-
1983
- 1983-02-07 JP JP1935983A patent/JPS59144114A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4325657Y1 (en) * | 1966-03-28 | 1968-10-26 | ||
| JPS51111654A (en) * | 1975-03-26 | 1976-10-02 | Marukon Denshi Kk | Method of making organic film capcitors |
| JPS51150665A (en) * | 1975-06-20 | 1976-12-24 | Nichicon Capacitor Ltd | Capacitor |
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