JP3170027B2 - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JP3170027B2 JP3170027B2 JP08150792A JP8150792A JP3170027B2 JP 3170027 B2 JP3170027 B2 JP 3170027B2 JP 08150792 A JP08150792 A JP 08150792A JP 8150792 A JP8150792 A JP 8150792A JP 3170027 B2 JP3170027 B2 JP 3170027B2
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- electrolytic capacitor
- raw material
- wool
- capacitor
- 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 - Fee Related
Links
Landscapes
- Paper (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、難燃性電解コンデンサ
の製造を可能とし、安全性の強く要求される分野への利
用が可能となる。The present invention makes it possible to manufacture a flame-retardant electrolytic capacitor and to use it in a field where safety is strongly required.
【０００２】[0002]
【従来の技術】従来より電解コンデンサの製造は、高純
度アルミニウム箔へエッチング処理を施して表面積を拡
大した陽極箔および陰極箔を、電解紙からなるセパレー
タを介在させて巻回してなるコンデンサ素子へ電解液を
含浸した後、このコンデンサ素子を端子付きラバ−ベ−
ク板等の封口部によって、アルミニウムケ−ス内へ封止
して製造している。2. Description of the Related Art Conventionally, electrolytic capacitors have been manufactured by winding an anode foil and a cathode foil, each having an increased surface area by performing an etching treatment on a high-purity aluminum foil, with a separator made of electrolytic paper therebetween. After impregnation with the electrolytic solution, this capacitor element is
It is manufactured by sealing in an aluminum case with a sealing portion such as a plate.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
電解コンデンサは電解紙の原料としてマニラ麻等を用い
ているため燃えやすく、電解コンデンサにショ−トなど
の異常が発生した場合、それが火種となって電解紙およ
び電解液に引火して電解コンデンサの燃焼が発生し、火
災等の原因となる可能性があった。そこで、安全性の強
く要求されるものについては、電解液の溶質として自己
消火性を有する硼酸を主体としたものを用いることによ
って対処してきたが、硼酸系電解液は、高温雰囲気中に
おいてエステル化反応が促進され多量のエステル化水を
生じるため、１０５℃品への対応は不可能であり、高温
度雰囲気中においても高い安全性を有する電解コンデン
サの開発が強く望まれていた。However, the conventional electrolytic capacitor is easily burnable because it uses manila hemp or the like as a raw material of electrolytic paper, and when an abnormality such as a short occurs in the electrolytic capacitor, it becomes a fire. As a result, the electrolytic paper and the electrolytic solution may ignite and the electrolytic capacitor may be burned, which may cause a fire or the like. Therefore, measures that require high safety have been dealt with by using a solute mainly composed of boric acid that has self-extinguishing properties as a solute of the electrolyte, but boric acid-based electrolytes are esterified in a high-temperature atmosphere. Since the reaction is accelerated and a large amount of esterified water is generated, it is impossible to cope with a product having a temperature of 105 ° C., and development of an electrolytic capacitor having high safety even in a high temperature atmosphere has been strongly desired.
【０００４】[0004]
【課題を解決するための手段】本発明は上記の課題を解
決するものである。すなわち、電解紙の主原料としてウ
−ル繊維を用い、副原料としてのマニラ麻・クラフト等
と共に混抄したセパレータを陽極箔と陰極箔との間に介
在させてコンデンサ素子を形成し、これに電解液を含浸
させ、ケースへ封止したことを特徴とする電解コンデン
サである。The present invention solves the above-mentioned problems. That is, a wool fiber is used as a main raw material of electrolytic paper, and a separator mixed with Manila hemp and kraft as an auxiliary raw material is interposed between an anode foil and a cathode foil to form a capacitor element. And sealed in a case.
【０００５】[0005]
【作用】ウ−ルは、火種を近づけて引火させても、自身
の消火作用によって燃焼の拡大には至らない性質を有し
ている。本発明に係わる電解コンデンサに用いた電解紙
は、主成分がウ−ルであるため、ショ−トなどの異常に
よって電解液に引火した場合においても、ウ−ルの消火
作用によって、電解コンデンサの燃焼を防止する。The wool has such a property that even if it is ignited by approaching a kind of fire, it does not lead to expansion of combustion due to its own fire-extinguishing action. Since the main component of the electrolytic paper used in the electrolytic capacitor according to the present invention is wool, even if the electrolytic solution is ignited due to an abnormality such as a short-circuit, the fire extinguishing action of the wool causes the electrolytic capacitor to be used. Prevent combustion.
【０００６】[0006]
【実施例】以下、本発明の実施例について説明する。表
１は、今回試験を行った製品へ用いた電解液組成を示し
た。表２は、エッチング処理を施して表面積を拡大した
陽極箔と陰極箔を用いて表中に示した組み合わせにより
試作した、定格４００Ｖ，４７００μＦの電解コンデン
サへ、６００Ｖの過電圧を１分間連続印加した際の燃焼
の有無を観察した。なお、表中試料記号Ａ，Ｂ，Ｃ，Ｄ
は従来例、Ｅ，Ｆ，Ｇ，Ｈは本発明例である。また、表
２中の繊維混合割合は、電解紙繊維中におけるウ−ル・
マニラ麻の配合比を示してある。Embodiments of the present invention will be described below. Table 1 shows the composition of the electrolyte used for the products tested this time. Table 2 shows that when an overvoltage of 600 V was continuously applied for 1 minute to an electrolytic capacitor having a rating of 400 V and 4700 μF, which was prototyped using the combination shown in the table using an anode foil and a cathode foil whose surface area was increased by performing an etching treatment. The presence or absence of burning was observed. In the table, sample symbols A, B, C, D
Is a conventional example, and E, F, G, and H are examples of the present invention. Further, the fiber mixing ratio in Table 2 indicates the wool content in the electrolytic paper fiber.
The mixing ratio of Manila hemp is shown.
【０００７】[0007]
【表１】 [Table 1]
【０００８】[0008]
【表２】 [Table 2]
【０００９】表２から明らかなように、本発明に係わる
試料記号Ｅ，Ｆ，Ｇ，Ｈの電解コンデンサは、過電圧印
加によってショ−トが発生しても、電解コンデンサの燃
焼には至らない。なお、電解紙中のウ−ルの混合割合が
３０重量％未満では発明の効果が得られないため、それ
以上の割合で混合する必要があるが、ウ−ルが１００重
量％では電解紙の強度等が低下するため、若干のマニラ
麻等の副成分を配合することが好ましい。As apparent from Table 2, the electrolytic capacitors of the sample symbols E, F, G, and H according to the present invention do not burn even if a short occurs due to application of an overvoltage. If the mixing ratio of the wool in the electrolytic paper is less than 30% by weight, the effect of the invention cannot be obtained, so that it is necessary to mix at a higher ratio. Since the strength and the like are reduced, it is preferable to add a small amount of auxiliary components such as manila hemp.
【００１０】[0010]
【発明の効果】以上のように、電解紙の主原料としてウ
−ル繊維を用い、副原料としてのマニラ麻・クラフト等
と共に混抄したセパレータを陽極箔と陰極箔との間に介
在させてコンデンサ素子を形成し、これに電解液を含浸
させた後、端子付きラバ−ベ−ク板等の封口部によって
アルミニウム製等のケ−ス内へ封止した電解コンデンサ
は、過電圧印加などによる異常が発生した場合において
も、電解コンデンサの燃焼を防止するため、高い安全性
を要求される分野への適用が可能となり、また、これは
有機酸系電解液を用いた高温度対応品への適用も可能で
あるため、工業的ならびに実用的価値の大なるものであ
る。As described above, a wool fiber is used as a main raw material of electrolytic paper, and a separator mixed with manila hemp, kraft and the like as an auxiliary raw material is interposed between an anode foil and a cathode foil to form a capacitor element. After the electrolytic capacitor is impregnated with the electrolytic solution, the electrolytic capacitor sealed in a case made of aluminum or the like with a sealing part such as a rubber baked plate with terminals causes abnormalities due to application of overvoltage, etc. In this case, it can be applied to the field where high safety is required to prevent the combustion of the electrolytic capacitor, and it can also be applied to high temperature compatible products using organic acid electrolyte. Therefore, it is of great industrial and practical value.
Claims (2)
い、副原料としてのマニラ麻・クラフトと共に混抄した
セパレータを陽極箔と陰極箔との間に介在させてコンデ
ンサ素子を形成し、これに電解液を含浸させ、ケ−スへ
封止したことを特徴とする電解コンデンサ。1. A wool fiber is used as a main raw material of electrolytic paper, and a separator mixed with Manila hemp / kraft as an auxiliary raw material is interposed between an anode foil and a cathode foil to form a capacitor element. An electrolytic capacitor characterized by being impregnated with an electrolytic solution and sealed in a case.
以上であることを特徴とする、請求項１の電解コンデン
サ。2. The mixing ratio of said wool fibers is 30% by weight.
The electrolytic capacitor according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08150792A JP3170027B2 (en) | 1992-03-02 | 1992-03-02 | Electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08150792A JP3170027B2 (en) | 1992-03-02 | 1992-03-02 | Electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05243089A JPH05243089A (en) | 1993-09-21 |
| JP3170027B2 true JP3170027B2 (en) | 2001-05-28 |
Family
ID=13748280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08150792A Expired - Fee Related JP3170027B2 (en) | 1992-03-02 | 1992-03-02 | Electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3170027B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104364861B (en) | 2012-08-10 | 2017-08-08 | 日本贵弥功株式会社 | Anti-flammability electrolytic capacitor |
-
1992
- 1992-03-02 JP JP08150792A patent/JP3170027B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05243089A (en) | 1993-09-21 |
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