JPH03154322A - Chip-type aluminum electrolytic capacitor - Google Patents
Chip-type aluminum electrolytic capacitorInfo
- Publication number
- JPH03154322A JPH03154322A JP29353189A JP29353189A JPH03154322A JP H03154322 A JPH03154322 A JP H03154322A JP 29353189 A JP29353189 A JP 29353189A JP 29353189 A JP29353189 A JP 29353189A JP H03154322 A JPH03154322 A JP H03154322A
- Authority
- JP
- Japan
- Prior art keywords
- metal case
- flange
- sealing body
- chip
- electrolytic 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 37
- 229910052782 aluminium Inorganic materials 0.000 title claims description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 24
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- 239000011888 foil Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims description 2
- 239000008151 electrolyte solution Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 13
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はチップ形アルミ電解コンデンサに関するもので
、さらに詳しくは金属ケースの開放端における封口構成
に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a chip-type aluminum electrolytic capacitor, and more particularly to a sealing structure at an open end of a metal case.
従来の技術
近年、各種電子機器の高密度実装化の要請の中で面実装
部品（リードレスタイプ）が産業界で広く多用されてい
る。アルミ電解コンデンサの場合もこうした流れの中で
、コンデンサ素子を有底円筒状の金属ケース内に収納し
、かつ金属ケースの開放端をゴム等の弾性を有する封口
体を用いて封口することによりアルミ電解コンデンサを
構成し、そして前記コンデンサ素子より引き出されてい
るリード線にコム状端子を接続し、かつ全体を樹脂モー
ルドして外装を構成した横型タイプのチップ形アルミ電
解コンデンサと、−第４図に示すように、コンデンサ素
子１を内蔵した金属ケース２と、この金属ケース２の開
放端に配置され、かつゴム状弾性体３１Ｌと非ゴム状絶
縁体３ｂよりなる封口体３と、前記コンデンサ素子１か
ら導出され、かつ封口体３を貫通して外部に引き出され
た一対のリード線４と、前記金属ケース２のカーリング
封口された開放端面に当接するように配設された絶縁板
６とを備え、前記一対のリード線４の先端部４ａを絶縁
板５の外表面に設けた凹部５！Ｌに沿わせて折り曲げる
ようにした縦型タイプのチップ形アルミ電解コンデンサ
が提案されている。BACKGROUND OF THE INVENTION In recent years, surface-mounted components (leadless type) have been widely used in the industrial world due to the demand for high-density packaging of various electronic devices. In the case of aluminum electrolytic capacitors, the capacitor element is housed in a cylindrical metal case with a bottom, and the open end of the metal case is sealed using an elastic sealing material such as rubber. A horizontal type chip-type aluminum electrolytic capacitor constitutes an electrolytic capacitor, a comb-shaped terminal is connected to a lead wire drawn out from the capacitor element, and the entire body is molded with resin to constitute an exterior, and - Fig. 4 As shown in FIG. 2, a metal case 2 containing a capacitor element 1, a sealing body 3 disposed at the open end of the metal case 2 and made of a rubber-like elastic body 31L and a non-rubber-like insulator 3b, and the capacitor element A pair of lead wires 4 led out from the metal case 1 and passed through the sealing body 3 to the outside, and an insulating plate 6 disposed so as to come into contact with the curled sealed open end surface of the metal case 2. A recess 5 in which the tips 4a of the pair of lead wires 4 are provided on the outer surface of the insulating plate 5! A vertical type chip-type aluminum electrolytic capacitor that is bent along the L has been proposed.
上記した縦型タイプのチップ形アルミ電解コンデンサに
おける製造法は、ディスクリートタイプのアルミ電解コ
ンデンサを一旦完成させた後、絶縁板６に一対のリード
線４を貫通させ、さらに−対のリード線４の先端部４ａ
を板状に加工し、そして絶縁板６の外表面に設けた凹部
５ａに沿わせて、加工された一対のリード線４の先端部
ＡｉＬを折り曲げることによりチップ形アルミ電解コン
デンサを構成していた。The manufacturing method for the above-mentioned vertical chip type aluminum electrolytic capacitor is that after the discrete type aluminum electrolytic capacitor is once completed, a pair of lead wires 4 are passed through the insulating plate 6, and then a pair of lead wires 4 are inserted through the insulating plate 6. Tip part 4a
A chip-type aluminum electrolytic capacitor was constructed by processing the lead wires 4 into a plate shape and bending the tips AiL of the processed pair of lead wires 4 along the recesses 5a provided on the outer surface of the insulating plate 6. .
発明が解決しようとする課題
しかしながら、縦型タイプのチップ形アルミ電解コンデ
ンサの場合は、前述したように、アルミ電解コンデンサ
を一旦完成させた後、絶縁板５を金属ケース２０カーリ
ング封口された開放端面に当接するように配設し、そし
て一対のリード線４の先端部４＆を板状に加工し、さら
にこの加工された一対のリード線４の先端部４ａを絶縁
板５の外表面に設けた凹部６ａに沿わせて折シ曲げると
いう作業を必要とするもので、その製造法は非常に煩雑
であるとともに５組立工数も多くなってコスト的にも高
くなるという問題点を有していた。Problems to be Solved by the Invention However, in the case of a vertical type chip-type aluminum electrolytic capacitor, as described above, after the aluminum electrolytic capacitor is once completed, the insulating plate 5 is attached to the metal case 20 with the curled and sealed open end surface. The tips 4& of the pair of lead wires 4 were processed into a plate shape, and the processed tips 4a of the pair of lead wires 4 were provided on the outer surface of the insulating plate 5. This requires the work of bending along the concave portion 6a, and the manufacturing method is very complicated, and there are problems in that the number of assembly steps increases and the cost is also high.
本発明はこのような問題点を解消するためになされたも
ので、製造法の簡略化がはかれるチップ形アルミ電解コ
ンデンサを提供することを目的とするものである。The present invention has been made to solve these problems, and an object of the present invention is to provide a chip-type aluminum electrolytic capacitor whose manufacturing method can be simplified.
課題を解決するための手段
上記目的を達成するために本発明のチップ形アルミ電解
コンデンサは、電極箔をセパレータとともに巻回し、か
つ電解液を含浸させてなるコンデンサ素子を内蔵した有
底筒状の金属ケースと、この金属ケースの開放端をカー
リング封口するための封口体とを有し、前記封口体に、
前記金属ケースの開放端のカーリング封口端面部全周を
覆うように金属ケースの外径より大きく形成され、かつ
座板機能を有する鍔部をあらかじめ一体化しておき、こ
の鍔部付きの封口体を前記金属ケースの開放端に配設し
てカーリング封口するとともに、前記コンデンサ素子に
接続され、かつ封口体を介して鍔部の外表面に導出され
ている一対のリード線の先端部を、鍔部の外表面に設け
た凹部内に収まるように折り曲げたものである。Means for Solving the Problems In order to achieve the above object, the chip-type aluminum electrolytic capacitor of the present invention has a bottomed cylindrical capacitor containing a capacitor element formed by winding electrode foil together with a separator and impregnating it with an electrolyte. It has a metal case and a sealing body for curling and sealing the open end of the metal case, and the sealing body includes:
A flange formed larger than the outer diameter of the metal case and having a seat plate function is integrated in advance so as to cover the entire circumference of the curling sealing end surface of the open end of the metal case, and the sealing body with this flange is integrated. The ends of the pair of lead wires, which are arranged at the open end of the metal case and sealed by curling, are connected to the capacitor element and led out to the outer surface of the collar via the sealing body. It is bent to fit into a recess provided on the outer surface of the
作用
上記構成のチップ形アルミ電解コンデンサによれば、封
口体に、金属ケースの開放端のカーリング封口端面部全
周を覆うように金属ケースの外径より大きく形成され、
かつ座板機能を有する鍔部をあら゛かじめ一体化してい
るため、金属ケースの開放端に封口体を配設してカーリ
ング封口するだけで、座板機能を有する鍔部も金属ケー
スの開放端のカーリング封口端面部に同時に当接する形
となり、したがってその製造法は従来のものに比べて簡
略化され、かつ組立工数の低減がはかれるため、コスト
的にも非常に有利なものを提供することができるもので
ある。According to the chip-type aluminum electrolytic capacitor having the above structure, the sealing body is formed to be larger than the outer diameter of the metal case so as to cover the entire circumference of the curled seal end face of the open end of the metal case.
In addition, since the flange that functions as a seat plate is integrated in advance, all you need to do is place a sealing body on the open end of the metal case and curl the seal, and the flange that functions as a seat plate can also be used to open the metal case. To provide a product which is extremely advantageous in terms of cost because it is in a form that simultaneously contacts the curled end face portion of the end, and therefore its manufacturing method is simplified compared to conventional products, and the number of assembly steps is reduced. It is something that can be done.
実施例
以下、本発明の一実施例を添付図面にもとづいて説明す
る。第１図〜第３図において、１１はアルミニウムより
なる有底円筒状の金属ケースで、この金属ケース１１に
は、アルミニウム箔を粗面化し、さらに陽極酸化により
誘電体酸化皮膜を形成した陽極箔およびアルミニウム箔
を粗面化して形成した陰極箔をセパレータを介して巻回
し、かつ駆動用電解液を含浸させることにより構成した
コンデンサ素子１２を内蔵している。Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. In FIGS. 1 to 3, reference numeral 11 denotes a bottomed cylindrical metal case made of aluminum, and this metal case 11 includes an anode foil made by roughening aluminum foil and further forming a dielectric oxide film by anodizing. The capacitor element 12 is constructed by winding a cathode foil formed by roughening aluminum foil with a separator in between and impregnating it with a driving electrolyte.
また前記金属ケース１１の開放端には封口体１３を配設
しているもので、この封口体１３はイソブチレンとイソ
プレンからなるブチルゴム等のゴム状弾性体により構成
され、かつこの封口体１３を介して金属ケース１１の開
放端はカーリング封口されている。１４は前記封口体１
３とは別個に四角形状に形成され、かつ座板機能を有す
る鍔部で、この鍔部１４は非ゴム状絶縁体により、前記
金属ケース１１の開放端のカーリング封口端面部１６の
全周を覆うように金属ケース１１の外径より大きく形成
している。そしてこの鍔部１４と前記封口体１３は第２
図に示すように、接着等により、あらかじめ一体化して
いるもので、このような構成とすることにより、金属ケ
ース１１の開放端に封口体１３を配設してカーリング封
口を行うと、座板機能を有する鍔部１４も金属ケース１
１の開放端のカーリング封口端面部１６に同時に当接す
る形となるものである。まだ前記封口体１３と鍔部１４
にはそれぞれ貫通孔１３ａ 、１４ａを設けている。そ
してまた前記コンデンサ素子１２には陽極リード線１６
と陰極リード線１７が接続されており、これらの陽極リ
ード線１６および陰極リード１ｓ１７は前記封口体１３
と鍔部１４にそれぞれ設けた貫通孔１３ａ、１４ａを貫
通して鍔部１４の外表面に導出されている。A sealing body 13 is disposed at the open end of the metal case 11, and the sealing body 13 is made of a rubber-like elastic material such as butyl rubber made of isobutylene and isoprene. The open end of the metal case 11 is sealed by curling. 14 is the sealing body 1
This collar part 14 is formed in a rectangular shape separately from 3 and has a seat plate function. It is formed larger than the outer diameter of the metal case 11 so as to cover it. This flange 14 and the sealing body 13 are connected to the second
As shown in the figure, they are pre-integrated by adhesion or the like, and with this configuration, when the sealing body 13 is placed on the open end of the metal case 11 and curling sealing is performed, the seat plate The functional flange 14 is also a metal case 1
It is shaped so that it simultaneously contacts the curling sealing end surface portion 16 of the open end of the first end. The sealing body 13 and the flange 14 are still closed.
Through holes 13a and 14a are provided in each of the holes. Further, the anode lead wire 16 is connected to the capacitor element 12.
The anode lead wire 16 and the cathode lead 1s17 are connected to the sealing body 13.
and are led out to the outer surface of the flange 14 through through holes 13a and 14a provided in the flange 14, respectively.
また前記鍔部１４の外表面には、第３図に示すように、
貫通孔１４ａにつながる凹部１８を設けておυ、そして
前記陽極リード線１６の先端部１６ＩＬおよび陰極リー
ド線１７の先端部１７ａはそれぞれ偏平状に加工してい
るもので、この偏平状に加工した先端部１８＆ 、 １
７ａを前記凹部１８内に収まるように折り曲げることに
より、チップ形アルミ電解コンデンサを構成している。Further, as shown in FIG. 3, on the outer surface of the flange portion 14,
A recess 18 connected to the through hole 14a is provided, and the tip 16IL of the anode lead wire 16 and the tip 17a of the cathode lead wire 17 are each processed into a flat shape. Tip part 18&, 1
A chip-type aluminum electrolytic capacitor is constructed by bending 7a to fit within the recess 18.
なお、上記一実施例においては、陽極リード線１６の先
端部１６＆および陰極リード線１７の先端部１７１Ｌを
それぞれ偏平状に加工し、その加工したものを折り曲げ
るようにしているが、丸棒からなる陽極リード線１６お
よび陰極リード線１７のそれぞれの先端部１６ａ、１７
！ｌをその丸棒の状態で折り曲げるようにしてもよいも
のである。In the above embodiment, the tip 16& of the anode lead wire 16 and the tip 171L of the cathode lead wire 17 are each processed into a flat shape, and the processed parts are bent. Tips 16a and 17 of the anode lead wire 16 and the cathode lead wire 17, respectively
! L may be bent in its round shape.
まだ鍔部１４の形状は四角形状に限定されるものではな
く、円形状でもさしつかえないものである。However, the shape of the flange portion 14 is not limited to a rectangular shape, and a circular shape is also acceptable.
そしてまた上記一実施例においては、封口体１３と鍔部
１４を別個に形成したものについて説明しだが、封口体
１３をインブチレンとイソプレンからなるブチルゴム等
のゴム状弾性体により構成し、そしてこの封口体１３と
一体に鍔部１４を形成しても、上記一実施例と同様の作
用効果を奏するものである。In the above embodiment, the sealing body 13 and the flange 14 are formed separately, but the sealing body 13 is made of a rubber-like elastic material such as butyl rubber made of inbutylene and isoprene. Even if the flange 14 is formed integrally with the sealing body 13, the same effects as in the above embodiment can be obtained.
発明の効果
上記実施例の説明から明らかなように、本発明のチップ
形アルミ電解コンデンサによれば、封口体に、金属ケー
スの開放端のカーリング封口端面部全周を覆うように金
属ケースの外径より大きく形成され、かつ座板機能を有
する鍔部をあらかじめ一体化しているため、金属ケース
の開放端に封口体を配設してカーリング封口するだけで
、座板機能を有する鍔部も金属ケースの開放端のカーリ
ング封口端面部に同時に当接する形となり、したがって
その製造法は従来のものに比べて簡略化され、かつ組立
工数の低減がはかれるため、コスト的にも非常に有利な
ものを提供することができるものである。Effects of the Invention As is clear from the description of the embodiments above, according to the chip-type aluminum electrolytic capacitor of the present invention, the sealing body has an outer surface of the metal case so as to cover the entire circumference of the curled seal end face of the open end of the metal case. Since the flange, which is larger than the diameter and functions as a seat plate, is integrated in advance, the flange, which functions as a seat plate, can simply be placed on the open end of the metal case and sealed by curling. It comes into contact with the curled sealing end surface of the open end of the case at the same time, so the manufacturing method is simplified compared to conventional ones, and the number of assembly steps is reduced, making it very advantageous in terms of cost. It is something that can be provided.
第１図は本発明の一実施例を示すチップ形アルミ電解コ
ンデンサの断面図、第２図は同コンデンサにおける封口
体と鍔部を一体化した状態の断面図、第３図は同コンデ
ンサの斜視図、第４図は従来のチップ形アルミ電解コン
デンサの断面図である。
１１−−−−−−金属ケース、１２−゛−コンデンサ素
子、１３・旧°・封口体、１４・・団・鍔部、１５°°
・・・・トリング封口端面部、１６・・・・・・陽極リ
ード線、１ｅａ・・・・・・陽極リード線の先端部、１
７・・・・・・陰極リード線、１７ａ・・・・・・陰極
リード線の先端部、１８・・・・・・凹部。Fig. 1 is a cross-sectional view of a chip-type aluminum electrolytic capacitor showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of the capacitor in which the sealing body and the flange are integrated, and Fig. 3 is a perspective view of the capacitor. 4 are cross-sectional views of a conventional chip-type aluminum electrolytic capacitor. 11------Metal case, 12-゛-capacitor element, 13・Old degree・Sealing body, 14・・Blank・Brim part, 15°°
...Tring sealing end surface, 16...Anode lead wire, 1ea...Tip of anode lead wire, 1
7...Cathode lead wire, 17a...Tip of cathode lead wire, 18...Recessed portion.
Claims (4)
を含浸させてなるコンデンサ素子を内蔵した有底筒状の
金属ケースと、この金属ケースの開放端をカーリング封
口するための封口体とを有し、前記封口体に、前記金属
ケースの開放端のカーリング封口端面部全周を覆うよう
に金属ケースの外径より大きく形成され、かつ座板機能
を有する鍔部をあらかじめ一体化しておき、この鍔部付
きの封口体を前記金属ケースの開放端に配設してカーリ
ング封口するとともに、前記コンデンサ素子に接続され
、かつ封口体を介して鍔部の外表面に導出されている一
対のリード線の先端部を、鍔部の外表面に設けた凹部内
に収まるように折り曲げたことを特徴とするチップ形ア
ルミ電解コンデンサ。(1) It has a bottomed cylindrical metal case containing a capacitor element made by winding electrode foil together with a separator and impregnating it with an electrolytic solution, and a sealing body for curling and sealing the open end of this metal case. A flange part formed larger than the outer diameter of the metal case and having a seat plate function is integrated in advance into the sealing body so as to cover the entire circumference of the curling seal end surface of the open end of the metal case. A sealing body with a flange is disposed on the open end of the metal case for curling sealing, and a pair of lead wires are connected to the capacitor element and led out to the outer surface of the flange via the sealing body. A chip-type aluminum electrolytic capacitor characterized in that the tip of the cap is bent to fit into a recess provided on the outer surface of the flange.
と一体に鍔部を形成した請求項１記載のチップ形アルミ
電解コンデンサ。(2) The chip-type aluminum electrolytic capacitor according to claim 1, wherein the sealing body is made of a rubber-like elastic body, and the flange is formed integrally with the sealing body.
状弾性体により構成するとともに、前記鍔部を非ゴム状
絶縁体で形成し、これらをあらかじめ一体化した請求項
１記載のチップ形アルミ電解コンデンサ。(3) The sealing body and the flange are formed separately, the sealing body is made of a rubber-like elastic body, and the flange is made of a non-rubber-like insulator, and these are integrated in advance. chip type aluminum electrolytic capacitor.
リード線の先端部を偏平状に構成した請求項１〜３のい
ずれかに記載のチップ形アルミ電解コンデンサ。(4) The chip-type aluminum electrolytic capacitor according to any one of claims 1 to 3, wherein the tip portions of the pair of lead wires housed in the recess provided on the outer surface of the flange portion are configured in a flat shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29353189A JPH03154322A (en) | 1989-11-10 | 1989-11-10 | Chip-type aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29353189A JPH03154322A (en) | 1989-11-10 | 1989-11-10 | Chip-type aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03154322A true JPH03154322A (en) | 1991-07-02 |
Family
ID=17795949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29353189A Pending JPH03154322A (en) | 1989-11-10 | 1989-11-10 | Chip-type aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03154322A (en) |
-
1989
- 1989-11-10 JP JP29353189A patent/JPH03154322A/en active Pending
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