JPH03154322A - Chip-type aluminum electrolytic capacitor - Google Patents

Chip-type aluminum electrolytic capacitor

Info

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
Application number
JP29353189A
Other languages
Japanese (ja)
Inventor
Shoichi Arase
荒瀬 祥一
Takashi Nakamura
隆司 中村
Toshiya Maehara
前原 敏哉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP29353189A priority Critical patent/JPH03154322A/en
Publication of JPH03154322A publication Critical patent/JPH03154322A/en
Pending legal-status Critical Current

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  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

PURPOSE:To reduce assembly man-hours by forming a collar part in one piece previously which is formed larger than an outer diameter of a metal case so that the entire periphery of a curling sealing edge surface part of an open edge of the metal case may be covered at a sealed body and has a seal-plate function. CONSTITUTION:A collar part 14 which is formed larger than an outer diameter of a metal case 11 so that the entire periphery of a curling sealing edge face part 15 of an open edge of the metal case 11 and has a seal-plate function is formed at a sealed body 13 in one piece previously. Then, this sealed body 13 with the collar is placed at the open edge of the metal case 11 for curing sealing and the tip part of a pair of lead wires 16 and 17 which are connected to a capacitor element 12 and are lead out to the outer surface of the collar part 14 through the sealed body 13 is bent so that it may fit into a recessed part which is provided on the outer surface of the collar part 14, thus simplifying the manufacture and reducing the assembly man-hours.

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.

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【特許請求の範囲】[Claims] (1)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.
(2)封口体をゴム状弾性体により構成し、この封口体
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.
(3)封口体と鍔部を別個に形成し、前記封口体をゴム
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.
(4)鍔部の外表面に設けた凹部内に収納される一対の
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.
JP29353189A 1989-11-10 1989-11-10 Chip-type aluminum electrolytic capacitor Pending JPH03154322A (en)

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)

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