JP3290255B2 - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JP3290255B2 JP3290255B2 JP18924393A JP18924393A JP3290255B2 JP 3290255 B2 JP3290255 B2 JP 3290255B2 JP 18924393 A JP18924393 A JP 18924393A JP 18924393 A JP18924393 A JP 18924393A JP 3290255 B2 JP3290255 B2 JP 3290255B2
- Authority
- JP
- Japan
- Prior art keywords
- elastic sealing
- sealing body
- capacitor
- electrolytic capacitor
- hole
- 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
【０００１】[0001]
【産業上の利用分野】本発明は弾性封口体を改善した電
解コンデンサに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic capacitor having an improved elastic sealing body.
【０００２】[0002]
【従来の技術】一般に電解コンデンサは、一対の電極箔
を対向させ、セパレータを介して巻回し該素子に電解液
を含浸し該素子より導出した引き出しリードを弾性封口
体に形成した貫通孔に挿入して引き出し、上記コンデン
サ素子及び弾性封口体を金属ケースに収納し、該ケース
を締め付け密閉して構成されていた。（特開昭５０ー１
４８８５４号公報など）2. Description of the Related Art In general, an electrolytic capacitor has a pair of electrode foils facing each other, wound with a separator interposed therebetween, impregnated with an electrolytic solution in the element, and a lead lead led out from the element is inserted into a through hole formed in an elastic sealing body. Then, the capacitor element and the elastic sealing body are housed in a metal case, and the case is tightly sealed. (Japanese Patent Laid-Open No. 50-1
No. 48854)
【０００３】[0003]
【発明が解決しようとする課題】上述のような従来の電
解コンデンサにおいては、弾性封口体がコンデンサ素子
側に強く押さえられると電解液が貫通孔を通して外方に
にじみでるという欠点があった。The conventional electrolytic capacitor as described above has a drawback that when the elastic sealing member is strongly pressed against the capacitor element, the electrolytic solution oozes out through the through hole.
【０００４】そのため弾性封口体のコンデンサ素子と接
する面に多孔質層や凸起を設けたものがあるが、上述の
電解液のにじみ出を完全に阻止する事は出来なかった。
（実開昭５６ー７８４５２号公報、実開昭５０ー１５３
４７号公報など）For this reason, there is an elastic sealing member in which a porous layer or a projection is provided on the surface in contact with the capacitor element, but it has not been possible to completely prevent the above-mentioned oozing of the electrolytic solution.
(Japanese Utility Model Application Laid-Open No. 56-78452, Japanese Utility Model Application Laid-Open No. 50-153)
No. 47, etc.)
【０００５】[0005]
【課題を解決するための手段】本発明は上述の課題を解
決するためコンデンサ素子に電解液を含浸し該素子より
導出した引き出しリードを弾性封口体に形成した貫通孔
に挿入して引き出し、上記コンデンサ素子及び弾性封口
体を金属ケースに収納し、該ケースを締め付け密封して
なる電解コンデンサにおいて、上記弾性封口体のコンデ
ンサ素子と接する内面側では、上記貫通孔を横切り、該
弾性封口体の外周迄延長した直線状の溝が形成されてい
ることを特徴とする電解コンデンサである。According to the present invention, in order to solve the above-mentioned problems, a capacitor element is impregnated with an electrolytic solution, and a lead lead led out from the element is inserted into a through hole formed in an elastic sealing body and pulled out. In an electrolytic capacitor in which a capacitor element and an elastic sealing body are housed in a metal case and the case is tightly sealed, the inner surface of the elastic sealing body in contact with the capacitor element traverses the through hole, and the outer periphery of the elastic sealing body An electrolytic capacitor characterized in that a linear groove extending up to that point is formed.
【０００６】[0006]
【作用】電解液がコンデンサ素子より流出し弾性封口体
の面に接触しても、弾性封口体の貫通孔を横切り、該弾
性封口体の外周部迄延長した直線状の溝が形成されてい
るので、電解液がこの溝に沿って貫通孔近傍より遠ざけ
られる為、貫通孔を伝って電解液のにじみ出が殆ど阻止
される。When the electrolytic solution flows out of the capacitor element and comes into contact with the surface of the elastic sealing body, a linear groove extending across the through hole of the elastic sealing body and extending to the outer periphery of the elastic sealing body is formed. Therefore, since the electrolytic solution is kept away from the vicinity of the through hole along the groove, oozing of the electrolytic solution along the through hole is almost prevented.
【０００７】[0007]
【実施例】以下本発明を図１〜図３に示す実施例により
説明する。図１は電解コンデンサの断面図でコンデンサ
素子１に電解液を含浸し、該素子１より引き出しリード
２を導出し弾性封口体３に形成した貫通孔４に上記引き
出しリード２を挿入し、コンデンサ素子１及び弾性封口
体３を金属ケース５に収納し、該ケース５を密閉され
る。上記弾性封口体３は図２の様にコンデンサ素子１と
接する内面側では貫通孔４を横切り弾性封口体３の外周
迄延長した直線状の溝６が形成されている。尚この溝６
は弾性封口体３の外周方向に向けてテーパー状に形成す
る事により電解液が貫通孔４より溝６を伝ってより遠ざ
けるようにしてもよい。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. FIG. 1 is a cross-sectional view of an electrolytic capacitor, in which a capacitor element 1 is impregnated with an electrolytic solution, a lead 2 is led out from the element 1, and the lead 2 is inserted into a through hole 4 formed in an elastic sealing body 3. 1 and the elastic sealing body 3 are housed in a metal case 5, and the case 5 is sealed. As shown in FIG. 2, the elastic sealing member 3 has a linear groove 6 extending across the through hole 4 and extending to the outer periphery of the elastic sealing member 3 on the inner surface in contact with the capacitor element 1. This groove 6
May be formed in a tapered shape toward the outer peripheral direction of the elastic sealing body 3 so that the electrolytic solution is further away from the through hole 4 along the groove 6.
【０００８】図２は弾性封口体の他の実施例で図２にお
ける２つの貫通孔４、４を結ぶ線上と直角方向に貫通孔
４から溝５を設けたものである。またこの溝６は弾性封
口体の外周方向に向けてテーパー状に形成しても良いこ
とはいうまでもない。FIG. 2 shows another embodiment of the elastic sealing member in which a groove 5 is provided from the through hole 4 in a direction perpendicular to a line connecting the two through holes 4 in FIG. Needless to say, the groove 6 may be formed in a tapered shape toward the outer peripheral direction of the elastic sealing body.
【０００９】表１は上述の実施例において定格１６Ｖ４
７００μＦのアルミ電解コンデンサを弾性封口体として
ブチルゴムを用いて製作し６０℃９５％の耐湿負荷試験
１０００時間を実施した結果の電解液のにじみ出の有無
を調べた結果を示す。弾性封口体は厚さ最大６ｍｍ、溝
の深さは１ｍｍのものを用いた。Table 1 shows that the rated voltage of the above-mentioned embodiment is 16V4.
The results of examining the presence or absence of oozing of the electrolytic solution as a result of manufacturing a 700 μF aluminum electrolytic capacitor using butyl rubber as an elastic sealing member and performing a humidity resistance load test at 60 ° C. and 95% for 1000 hours are shown. The elastic sealing body used had a maximum thickness of 6 mm and a groove depth of 1 mm.
【００１０】[0010]
【表１】 [Table 1]
【００１１】表１から明らかのように本発明品は高温耐
湿負荷試験においても電解液のにじみ出がなく、品質が
安定している事が実証された。As is clear from Table 1, the product of the present invention showed no electrolyte bleeding even in a high-temperature and humidity resistance load test, and it was proved that the quality was stable.
【００１２】[0012]
【発明の効果】本発明の電解コンデンサは上述のように
電解液のにじみ出がなく耐湿特性が安定し、工業的価値
が大きいものである。As described above, the electrolytic capacitor of the present invention does not bleed out of the electrolytic solution, has stable moisture resistance, and has a large industrial value.
【図１】図１は本発明の電解コンデンサの一実施例の断
面図である。FIG. 1 is a sectional view of an embodiment of the electrolytic capacitor of the present invention.
【図２】図２は本発明の電解コンデンサに用いる弾性封
口体の一実施例の斜視図である。FIG. 2 is a perspective view of one embodiment of an elastic sealing member used for the electrolytic capacitor of the present invention.
【図３】図３は本発明の電解コンデンサに用いる弾性封
口体の他の実施例の斜視図である。FIG. 3 is a perspective view of another embodiment of the elastic sealing body used for the electrolytic capacitor of the present invention.
１ コンデンサ素子 ２ 引き出しリード ３ 弾性封口体 ４ 貫通孔 ５ 金属ケース ６ 溝 DESCRIPTION OF SYMBOLS 1 Capacitor element 2 Leader lead 3 Elastic sealing body 4 Through hole 5 Metal case 6 Groove
Claims (1)
子より導出した引き出しリードを弾性封口体に形成した
貫通孔に挿入して引き出し、上記コンデンサ素子及び弾
性封口体を金属ケースに収納し、該ケースを締め付け密
閉してなる電解コンデンサにおいて、上記弾性封口体の
コンデンサ素子と接する内面側では、上記貫通孔を横切
り、弾性封口体の外周迄延長した直線状の溝が形成され
ていることを特徴とする電解コンデンサ。An electrolytic solution is impregnated in a capacitor element, and a lead lead led out from the element is inserted into a through hole formed in an elastic sealing body and pulled out, and the capacitor element and the elastic sealing body are housed in a metal case, In the electrolytic capacitor which is tightly closed by sealing the case, on the inner surface side of the elastic sealing member that contacts the capacitor element, a linear groove extending across the through hole and extending to the outer periphery of the elastic sealing member is formed. Characteristic electrolytic capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18924393A JP3290255B2 (en) | 1993-06-30 | 1993-06-30 | Electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18924393A JP3290255B2 (en) | 1993-06-30 | 1993-06-30 | Electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0786100A JPH0786100A (en) | 1995-03-31 |
| JP3290255B2 true JP3290255B2 (en) | 2002-06-10 |
Family
ID=16238021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18924393A Expired - Lifetime JP3290255B2 (en) | 1993-06-30 | 1993-06-30 | Electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3290255B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4900598B2 (en) * | 2007-06-29 | 2012-03-21 | 三洋電機株式会社 | Electrolytic capacitor and manufacturing method thereof |
-
1993
- 1993-06-30 JP JP18924393A patent/JP3290255B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0786100A (en) | 1995-03-31 |
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