JPH03139817A - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JPH03139817A JPH03139817A JP27794989A JP27794989A JPH03139817A JP H03139817 A JPH03139817 A JP H03139817A JP 27794989 A JP27794989 A JP 27794989A JP 27794989 A JP27794989 A JP 27794989A JP H03139817 A JPH03139817 A JP H03139817A
- Authority
- JP
- Japan
- Prior art keywords
- thin plate
- electrolytic capacitor
- sealing body
- capacitor
- glass epoxy
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 239000011521 glass Substances 0.000 claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000003822 epoxy resin Substances 0.000 claims abstract description 3
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 3
- 239000004593 Epoxy Substances 0.000 abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011888 foil Substances 0.000 abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 abstract description 2
- 230000009191 jumping Effects 0.000 abstract 1
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電解コンデンサの弾性封口体の改良に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to improvements in elastic sealing bodies for electrolytic capacitors.
従来の技術
一般にアルミニウム電解コンデンサは、第４図に示すよ
うにアルミニウム金属箔からなる陽極箔と陰極箔とをセ
パレータを介在させて、巻回してコンデンサ素子１を構
成し、このコンデンサ素子１に電解液を含浸し、コンデ
ンサ素子１から導出された引出リード５に弾性封口体３
を挿着し、アルミニウム金属からなる外装ケース２内に
収納したのち、ケース２の開口部を巻締め密封して構成
されている。2. Description of the Related Art In general, an aluminum electrolytic capacitor is constructed by winding an anode foil and a cathode foil made of aluminum metal foil with a separator in between to form a capacitor element 1, as shown in FIG. An elastic sealing body 3 is impregnated with a liquid and attached to the lead-out lead 5 led out from the capacitor element 1.
is inserted and housed in an exterior case 2 made of aluminum metal, and then the opening of the case 2 is sealed tightly.
発明が解決しようとする問題点
このように構成された電解コンデンサの密封性、防爆性
を改良するため弾性封口体の構造また材料、ベーク板と
の組合せなどにより改良がなされているが、近年の小形
化指向は電解コンデンサにおいて数１００μｍが大小を
左右するに至っており、電解コンデンサの構成部材であ
る弾性封口体の厚さが設計上に占める割合が高い。Problems to be Solved by the Invention In order to improve the sealing and explosion-proof properties of electrolytic capacitors constructed as described above, improvements have been made by changing the structure and material of the elastic sealing body, and by combining it with a baking plate. The trend toward miniaturization has reached the point where several hundred μm determines the size of electrolytic capacitors, and the thickness of the elastic sealing body, which is a component of electrolytic capacitors, plays a large role in the design.
したがって、弾性封口体の厚さを薄くするため硬度の向
上などの対応が図られているが、電解コンデンサの内圧
上昇に対するガス抜き弾性封口体形状において、高信頼
としてブチルゴム化が必要とされているが、ブチルゴム
は硬度が低いため、ガス抜き構成部が作動する前に封口
体がケースから抜けるといった不都合があった。Therefore, measures such as improving hardness are being taken to reduce the thickness of the elastic sealing body, but butyl rubber is required for high reliability in the shape of the elastic sealing body for degassing against the increase in internal pressure of electrolytic capacitors. However, because of the low hardness of butyl rubber, there was an inconvenience that the sealing body would come out of the case before the gas venting component was activated.
問題点を解決するための手段
本発明は、従来の問題を解決するものであり、電解コン
デンサの防爆性能を安定に作動させる弾性封口体を提供
するもので、コンデンサ素子を収納する金属ケースと、
該金属ケースの開口部に挿着する弾性封口体のいずれか
一方に防爆弁を備えた電解コンデンサにおいて、該弾性
封口体の平面部の少なくとも一面にガラスエポキシ樹脂
からなる薄板を配置し、該薄板の周沿部を金属ケースで
巻締め封口したことを特徴とする電解コンデンサである
。Means for Solving the Problems The present invention solves the conventional problems and provides an elastic sealing body that stably operates the explosion-proof performance of an electrolytic capacitor.
In an electrolytic capacitor equipped with an explosion-proof valve on either side of an elastic sealing body inserted into an opening of the metal case, a thin plate made of glass epoxy resin is disposed on at least one plane of the elastic sealing body, and the thin plate This is an electrolytic capacitor characterized by having a metal case wrapped and sealed around the circumference of the capacitor.
作用
このような本発明の電解コンデンサは、弾性封口体の一
面の全面もしくは少なくとも円周にそって、ガラスエポ
キシからなるリング状の薄板が構成され、ゴム強度を補
強するものであるから、電解コンデンサに異常が生じて
内圧が上昇したとき、防爆機構が作動する前に弾性封口
体の飛び出し現象がなくなる。Function The electrolytic capacitor of the present invention has a ring-shaped thin plate made of glass epoxy along the entire surface or at least the circumference of one side of the elastic sealing body, and is intended to reinforce the rubber strength. When an abnormality occurs and the internal pressure rises, the phenomenon of the elastic sealing body popping out disappears before the explosion-proof mechanism is activated.
実施例
以下、本発明の一実施例を図面に基づき詳細に説明する
。EXAMPLE Hereinafter, an example of the present invention will be described in detail based on the drawings.
第３図は本発明の電解コンデンサの断面図で、第１図は
封口体の斜視図、第２図はガラスエポキシからなるリン
グ状薄板の斜視図で、１はコンデンサ素子、２は金属ケ
ース、３は弾性封口体、４はガラスエポキシ薄板で、第
２図のように形成したリング状薄板４を第１図のように
弾性封口体３と一体形成した封口体をアルミニウム金属
からなる陽極箔と陰極箔とをセパレータを介して巻回し
てコンデンサ素子１の引出リード５に挿通し、アルミニ
ウムのような外装ケース２内に収納し、該ケース２の開
口部を巻締め封口体により密封することにより構成した
電解コンデンサである。FIG. 3 is a cross-sectional view of the electrolytic capacitor of the present invention, FIG. 1 is a perspective view of a sealing body, and FIG. 2 is a perspective view of a ring-shaped thin plate made of glass epoxy. 1 is a capacitor element, 2 is a metal case, 3 is an elastic sealing body, 4 is a glass epoxy thin plate, and the ring-shaped thin plate 4 formed as shown in FIG. 2 is integrally formed with the elastic sealing body 3 as shown in FIG. By winding the cathode foil through a separator and inserting it into the drawer lead 5 of the capacitor element 1, storing it in an exterior case 2 such as aluminum, and sealing the opening of the case 2 with a rolled sealing body. This is an electrolytic capacitor constructed.
このように構成された電解コンデンサと同様に直径１６
ｎｖｎφ、厚み４．５ｎｗｎと直径１８１′１ｔｌＴＩ
φ、厚み４．５印の弾性封口体に０．１ｍｍおよび０．
３ｍｍ厚みのガラスエポキシの薄板を一体化した封口体
を用いて電解コンデンサを製作し、該コンデンサの引出
リードの両端に過電圧、逆電圧また交流電圧を印加し、
防爆試験を行った結果を第１表に示す。Similar to the electrolytic capacitor constructed in this way, the diameter is 16
nvnφ, thickness 4.5nwn and diameter 181'1tlTI
0.1 mm and 0.0 mm on an elastic sealing body with a diameter of 4.5 and a thickness of 4.5.
An electrolytic capacitor is manufactured using a sealing body that integrates a thin plate of glass epoxy with a thickness of 3 mm, and an overvoltage, reverse voltage, or alternating current voltage is applied to both ends of the lead of the capacitor.
Table 1 shows the results of the explosion-proof test.
（以下空白）
上記防爆試験で明らかなようにガラスエポキシの薄板を
弾性封口体と一体構成することにより封口体の突き出し
はなく、良好な結果が得られた。(Blank below) As is clear from the above explosion-proof test, by integrating the glass epoxy thin plate with the elastic sealant, there was no protrusion of the sealant, and good results were obtained.
なお、ガラスエポキシ薄板の厚みは０．３ｍｍ以上が必
要で、Ｏ，１ｍｍの場合、弾性封口体が１６１Ｔｌｒｌ
Ｉφでは良好な結果が得られたが、１８Ｍφでは弾性封
口体が突出し一部に電解液の液漏れが生じ、弾性封口体
の直径および厚みと、ガラスエポキシ薄板厚みとを考慮
し、設定することにより効果を得ることができる。また
、実施例においてガラスエポキシの薄板をリング状に形
成したが、弾性封口体の形状により設計可能で、−面ま
たは両面を覆う形状であっても同等の効果が得られる。The thickness of the glass epoxy thin plate must be 0.3 mm or more, and in the case of O, 1 mm, the elastic sealing body should be 161 Tlrl.
Good results were obtained with Iφ, but with 18Mφ the elastic sealing body protruded and electrolyte leakage occurred in some parts, so the diameter and thickness of the elastic sealing body and the thickness of the glass epoxy thin plate should be taken into consideration when setting. The effect can be obtained by Further, in the embodiment, the glass epoxy thin plate was formed into a ring shape, but it can be designed depending on the shape of the elastic sealing body, and the same effect can be obtained even if the shape covers the negative side or both sides.
発明の効果
以上のように本発明の電解コンデンサは、弾性封口体と
ガラスエポキシ薄板とを一体にして得られた封口体を使
用することにより、電解コンデンサが万一不具合が生じ
ても、ケースもしくは弾性封口体に設けられた防爆機構
が確実に作動し、封口体の突出しによる不都合が解決で
き、工業上有益なものである。Effects of the Invention As described above, the electrolytic capacitor of the present invention uses a sealing body obtained by integrating an elastic sealing body and a glass epoxy thin plate, so that even if a problem occurs with the electrolytic capacitor, the case or The explosion-proof mechanism provided on the elastic sealing body operates reliably, and the inconvenience caused by the protrusion of the sealing body can be solved, which is industrially useful.
第１図は本発明の電解コンデンサに用いる封口体の一実
施例の斜視図、第２図は第１図に用いるガラスエポキシ
薄板の斜視図、第３図は本発明の電解コンデンサの一実
施例の断面図、第４図は従来の電解コンデンサの断面図
である。
１：コンデンサ素子 ２：金属ケース
３：弾性封口体 ４ニガラスエポキシ薄板５：引出リー
ドFig. 1 is a perspective view of an embodiment of the sealing body used in the electrolytic capacitor of the present invention, Fig. 2 is a perspective view of a glass epoxy thin plate used in Fig. 1, and Fig. 3 is an embodiment of the electrolytic capacitor of the present invention. FIG. 4 is a cross-sectional view of a conventional electrolytic capacitor. 1: Capacitor element 2: Metal case 3: Elastic sealing body 4 Glass epoxy thin plate 5: Drawer lead
Claims (1)
スの開口部に挿着する弾性封口体のいずれか一方に防爆
弁を備えた電解コンデンサにおいて、該弾性封口体の平
面部の少なくとも一面にガラスエポキシ樹脂からなる薄
板を配置し、該薄板の周沿部を金属ケースで巻締め封口
したことを特徴とする電解コンデンサ。In an electrolytic capacitor that has an explosion-proof valve on either one of a metal case that houses a capacitor element and an elastic sealing body that is inserted into an opening of the metal case, at least one flat surface of the elastic sealing body is coated with glass epoxy resin. 1. An electrolytic capacitor characterized in that a thin plate is arranged, and the circumference of the thin plate is wrapped and sealed with a metal case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1277949A JP2902423B2 (en) | 1989-10-25 | 1989-10-25 | Electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1277949A JP2902423B2 (en) | 1989-10-25 | 1989-10-25 | Electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03139817A true JPH03139817A (en) | 1991-06-14 |
| JP2902423B2 JP2902423B2 (en) | 1999-06-07 |
Family
ID=17590520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1277949A Expired - Fee Related JP2902423B2 (en) | 1989-10-25 | 1989-10-25 | Electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2902423B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0714109A1 (en) * | 1994-11-24 | 1996-05-29 | SANYO ELECTRIC Co., Ltd. | Solid electrolyte capacitor and process for producing same |
| JP2012094854A (en) * | 2010-09-30 | 2012-05-17 | Nippon Chemicon Corp | Capacitor and manufacturing method of the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54171748U (en) * | 1978-05-24 | 1979-12-04 | ||
| JPS5527982U (en) * | 1978-08-15 | 1980-02-22 |
-
1989
- 1989-10-25 JP JP1277949A patent/JP2902423B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54171748U (en) * | 1978-05-24 | 1979-12-04 | ||
| JPS5527982U (en) * | 1978-08-15 | 1980-02-22 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0714109A1 (en) * | 1994-11-24 | 1996-05-29 | SANYO ELECTRIC Co., Ltd. | Solid electrolyte capacitor and process for producing same |
| US5766271A (en) * | 1994-11-24 | 1998-06-16 | Sanyo Electric Co., Ltd. | Process for producing solid electrolyte capacitor |
| JP2012094854A (en) * | 2010-09-30 | 2012-05-17 | Nippon Chemicon Corp | Capacitor and manufacturing method of the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2902423B2 (en) | 1999-06-07 |
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