JPH05326339A - Electrolytic capacitor and its manufacture - Google Patents
Electrolytic capacitor and its manufactureInfo
- Publication number
- JPH05326339A JPH05326339A JP4128477A JP12847792A JPH05326339A JP H05326339 A JPH05326339 A JP H05326339A JP 4128477 A JP4128477 A JP 4128477A JP 12847792 A JP12847792 A JP 12847792A JP H05326339 A JPH05326339 A JP H05326339A
- Authority
- JP
- Japan
- Prior art keywords
- lead
- foil
- hole
- cathode
- anode
- 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
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は各種電子機器に利用され
る電解コンデンサおよびその製造方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic capacitor used in various electronic devices and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】従来のアルミ電解コンデンサは、弁作用
金属箔をエッチングにより粗面化した後、陽極酸化によ
り誘電体酸化皮膜を形成した陽極箔と、これに対極する
陰極箔とをセパレータを介在させて巻回することにより
コンデンサ素子を構成し、そしてこのコンデンサ素子に
駆動用電解液を含浸させるとともに、このコンデンサ素
子をアルミニウム材よりなる有底円筒状の金属ケース内
に収納し、その後、この金属ケースの一端開口部に、内
部の駆動用電解液が蒸発しないように封口部材を装着す
ることにより構成している。2. Description of the Related Art In a conventional aluminum electrolytic capacitor, a valve action metal foil is roughened by etching, and then an anode foil having a dielectric oxide film formed by anodic oxidation and a cathode foil opposite thereto are interposed by a separator. Then, the capacitor element is constructed by winding it and winding it, and this capacitor element is impregnated with a driving electrolyte solution, and this capacitor element is housed in a bottomed cylindrical metal case made of an aluminum material. A sealing member is attached to the opening of one end of the metal case so that the driving electrolyte solution inside does not evaporate.
【０００３】一般に、ＩＣ化により小型化される傾向に
ある各種電子機器においては、この種のアルミ電解コン
デンサの占める体積は大きく、小型で大容量のものが要
求されている。そこで、電極箔を薄く形成して巻回密度
を向上させるとともに、エッチング処理を強力に行って
電極箔の表面積の拡大を図る等して、コンデンサ素子を
小型化することが行われている。Generally, in various electronic devices which tend to be miniaturized by making IC, an aluminum electrolytic capacitor of this type occupies a large volume, and a small size and a large capacity are required. Therefore, the capacitor element is miniaturized by forming the electrode foil thin to improve the winding density and by strongly performing the etching process to increase the surface area of the electrode foil.
【０００４】しかし、この巻回型コンデンサ素子の場合
は、陽極箔と陰極箔とをセパレータを介在させて巻回す
る方式であるため、リアクタンス成分が発生して高周波
におけるインピーダンス成分が高くなって周波数特性が
悪くなるという問題点を有している。However, in the case of this winding type capacitor element, since the anode foil and the cathode foil are wound with a separator interposed, a reactance component is generated and an impedance component at a high frequency becomes high, resulting in a high frequency. It has a problem that the characteristics are deteriorated.
【０００５】そこで、このような問題点を解消するため
に、例えば、特開昭５７−１１１０１５号公報に示され
ているように、すなわち、図５に示すように、陽極箔１
と陰極箔２をセパレータ紙３と同様に帯状に形成し、そ
してこの陽極箔１と陰極箔２を、両者１，２間に介在さ
せたセパレータ紙３とともに千鳥状に折曲してコンデン
サ素子４を構成したものが提案されている。Therefore, in order to solve such a problem, for example, as shown in Japanese Patent Application Laid-Open No. 57-111015, that is, as shown in FIG.
The cathode foil 2 and the cathode foil 2 are formed in the same band shape as the separator paper 3, and the anode foil 1 and the cathode foil 2 are staggered together with the separator paper 3 interposed between the capacitors 1 and 2 to form the capacitor element 4. It has been proposed that the.
【０００６】そしてこのコンデンサ素子４は、一定幅の
セパレータ紙３を中心にして同一幅の陽極箔１、陰極箔
２の縁部１ａ，２ａがセパレータ紙３の幅より一定幅だ
け露出するように陽極箔１、陰極箔２およびセパレータ
紙３を重ね合わせており、さらに前記縁部１ａ，２ａに
陽極リード部材、陰極リード部材（いずれも図示せず）
を溶着することにより、平板状のコンデンサ素子４を得
ているものである。In the capacitor element 4, the edges 1a and 2a of the anode foil 1 and the cathode foil 2 having the same width centering on the separator paper 3 having a constant width are exposed by a constant width from the width of the separator paper 3. An anode foil 1, a cathode foil 2 and a separator paper 3 are superposed on each other, and further, an anode lead member and a cathode lead member (neither shown) on the edges 1a and 2a.
The flat capacitor element 4 is obtained by welding.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、上記図
５に示す平板型の電解コンデンサは、陽極リード部材と
陰極リード部材をコンデンサ素子４から導出する場合、
一定幅のセパレータ紙３を中心にして同一幅の陽極箔
１、陰極箔２の縁部１ａ，２ａがセパレータ紙３の幅よ
り一定幅だけ露出するように、陽極箔１、陰極箔２を横
方向にずらしているため、コンデンサ素子４全体の面積
としては、セパレータ紙３を中心にして陽極箔１と陰極
箔２を横方向、すなわち相反する方向にずらした分だけ
面積が大きくなり、これにより、電解コンデンサ自体が
大型化するという問題点を有していた。However, in the flat plate type electrolytic capacitor shown in FIG. 5, when the anode lead member and the cathode lead member are led out from the capacitor element 4,
The anode foil 1 and the cathode foil 2 are laterally arranged so that the edges 1a and 2a of the anode foil 1 and the cathode foil 2 having the same width around the separator paper 3 having a certain width are exposed by a certain width from the width of the separator paper 3. Since the capacitor elements 4 are displaced in the directions, the area of the entire capacitor element 4 is increased by an amount corresponding to the displacement of the anode foil 1 and the cathode foil 2 with respect to the separator paper 3 in the lateral direction, that is, the opposite directions. However, there is a problem that the electrolytic capacitor itself becomes large.
【０００８】本発明はこのような問題点を解決するもの
で、コンデンサ素子全体の大きさが大きくなることな
く、陽極リード部材と陰極リード部材をコンデンサ素子
から効果的に導出させることができる電解コンデンサ
と、陽極箔および陰極箔を効率よく合理的に生産するこ
とができる電解コンデンサおよびその製造方法を提供す
ることを目的とするものである。The present invention solves such a problem and an electrolytic capacitor in which the anode lead member and the cathode lead member can be effectively led out from the capacitor element without increasing the size of the entire capacitor element. Another object of the present invention is to provide an electrolytic capacitor capable of efficiently and rationally producing an anode foil and a cathode foil, and a method for producing the same.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に本発明の電解コンデンサは、リード接続孔とリード逃
がし孔を有する陽極箔と、同じくリード接続孔とリード
逃がし孔を有する陰極箔と、前記陽極箔と陰極箔の間に
介在され、かつリード逃がし孔を有するセパレータとを
有し、前記陽極箔、セパレータ、陰極箔を、陽極箔のリ
ード接続孔あるいはリード逃がし孔と陰極箔のリード逃
がし孔あるいはリード接続孔が対応するように順次積層
することによりコンデンサ素子を構成するとともに、陽
極箔のリード接続孔に陽極リード部材を接続し、さらに
陰極箔のリード接続孔に陰極リード部材を接続するよう
にしたものである。In order to achieve the above object, the electrolytic capacitor of the present invention comprises an anode foil having a lead connecting hole and a lead escape hole, and a cathode foil having a lead connecting hole and a lead escape hole. Having a separator interposed between the anode foil and the cathode foil, and having a lead escape hole, the anode foil, the separator, the cathode foil, the lead connection hole of the anode foil or the lead escape hole and the lead escape of the cathode foil. A capacitor element is constructed by sequentially stacking holes or lead connection holes so that they correspond to each other, and an anode lead member is connected to the lead connection hole of the anode foil, and a cathode lead member is connected to the lead connection hole of the cathode foil. It was done like this.
【００１０】また本発明の電解コンデンサの製造方法
は、リード接続孔とリード逃がし孔を等間隔に複数個設
けた帯状の陽極箔をリード逃がし孔とリード接続孔との
間で切断することにより、リード接続孔とリード逃がし
孔を有する個片状の陽極箔を構成するとともに、同じく
リード接続孔とリード逃がし孔を等間隔に複数個設けた
帯状の陰極箔をリード接続孔とリード逃がし孔との間で
切断することにより、リード接続孔とリード逃がし孔を
有する個片状の陰極箔を構成し、前記個片状の陽極箔、
リード逃がし孔を有するセパレータおよび前記個片状の
陰極箔を、陽極箔のリード接続孔あるいはリード逃がし
孔と陰極箔のリード逃がし孔あるいはリード接続孔が対
応するように順次積層することによりコンデンサ素子を
構成するとともに、陽極箔のリード接続孔に陽極リード
部材を接続し、さらに陰極箔のリード接続孔に陰極リー
ド部材を接続するようにしたものである。In the method for manufacturing an electrolytic capacitor of the present invention, a strip-shaped anode foil provided with a plurality of lead connecting holes and lead escape holes at equal intervals is cut between the lead escape holes and the lead connecting holes. A strip-shaped cathode foil having a plurality of lead connection holes and lead escape holes at equal intervals is formed as well as forming a piece-shaped anode foil having a lead connection hole and a lead escape hole. By cutting between, to form an individual piece of cathode foil having a lead connection hole and a lead escape hole, the individual piece of anode foil,
A capacitor having a separator having a lead escape hole and the individual piece-shaped cathode foil are sequentially laminated so that the lead connection hole or the lead escape hole of the anode foil and the lead escape hole or the lead connection hole of the cathode foil correspond to each other. In addition to the configuration, the anode lead member is connected to the lead connection hole of the anode foil, and the cathode lead member is further connected to the lead connection hole of the cathode foil.
【００１１】[0011]
【作用】上記構成の電解コンデンサによれば、リード接
続孔とリード逃がし孔を有する陽極箔と、同じくリード
接続孔とリード逃がし孔を有する陰極箔と、前記陽極箔
と陰極箔の間に介在され、かつリード逃がし孔を有する
セパレータとを有し、前記陽極箔、セパレータ、陰極箔
を、陽極箔のリード接続孔あるいはリード逃がし孔と陰
極箔のリード逃がし孔あるいはリード接続孔が対応する
ように順次積層することによりコンデンサ素子を構成す
るとともに、陽極箔のリード接続孔に陽極リード部材を
接続し、さらに陰極箔のリード接続孔に陰極リード部材
を接続するようにしているため、コンデンサ素子全体の
大きさとしては、従来のようにセパレータ紙を中心にし
て陽極箔と陰極箔を横方向、すなわち相反する方向にず
らしたものに比較して小さくすることができ、これによ
り、電解コンデンサ自体の小型化が図れるとともに、陽
極リード部材と陰極リード部材のコンデンサ素子からの
導出も、陽極箔のリード接続孔に陽極リード部材を接続
するとともに、陰極箔のリード接続孔に陰極リード部材
を接続するだけで容易に行えるため、コスト高になるこ
となく、効果的に行え、しかも平板型の電解コンデンサ
であるため、従来の巻回方式のように、リアクタンス成
分が発生することもなく、これにより、高周波における
インピーダンスも低くなって周波数特性も良好なものが
得られる。According to the electrolytic capacitor having the above structure, the anode foil having the lead connecting hole and the lead escaping hole, the cathode foil having the lead connecting hole and the lead escaping hole, and the anode foil and the cathode foil are interposed. , And a separator having a lead escape hole, wherein the anode foil, the separator, the cathode foil, the lead connection hole or lead escape hole of the anode foil and the lead escape hole or lead connection hole of the cathode foil in order Since the capacitor element is formed by stacking, the anode lead member is connected to the lead connection hole of the anode foil, and the cathode lead member is connected to the lead connection hole of the cathode foil, the size of the entire capacitor element is increased. Compared with the conventional one, the anode foil and the cathode foil are shifted laterally, that is, in opposite directions with the separator paper as the center. This makes it possible to reduce the size of the electrolytic capacitor itself and also to lead the anode lead member and the cathode lead member out of the capacitor element while connecting the anode lead member to the lead connection hole of the anode foil, Since it can be done easily by simply connecting the cathode lead member to the lead connection hole of the cathode foil, it can be done effectively without increasing the cost. As a result, no reactance component is generated, and as a result, impedance at high frequencies is lowered and frequency characteristics are excellent.
【００１２】また、上記電解コンデンサは陽極箔と陰極
箔を構成する場合、リード接続孔とリード逃がし孔を等
間隔に複数個設けた帯状の陽極箔をリード逃がし孔とリ
ード接続孔との間で切断することにより、リード接続孔
とリード逃がし孔を有する個片状の陽極箔を構成すると
ともに、同じくリード接続孔とリード逃がし孔を等間隔
に複数個設けた帯状の陰極箔をリード接続孔とリード逃
がし孔との間で切断することにより、リード接続孔とリ
ード逃がし孔を有する個片状の陰極箔を構成するように
しているため、陽極箔および陰極箔の生産も帯状のもの
から効率よく合理的に行うことができるものである。Further, when the above electrolytic capacitor constitutes an anode foil and a cathode foil, a strip-shaped anode foil having a plurality of lead connection holes and lead escape holes provided at equal intervals is provided between the lead escape hole and the lead connection hole. By cutting, a strip-shaped anode foil having lead connecting holes and lead escape holes is formed, and a strip-shaped cathode foil having a plurality of lead connecting holes and lead escape holes at equal intervals is also used as a lead connecting hole. By cutting between the lead escape hole and the individual cathode foil having the lead connection hole and the lead escape hole, the anode foil and the cathode foil can be efficiently produced from the strip-shaped one. It can be done reasonably.
【００１３】[0013]
【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。図１（ａ），（ｂ），（ｃ），（ｄ）は
本発明の一実施例の電解コンデンサにおけるコンデンサ
素子の構成部品を示したもので、この図１（ａ），
（ｂ），（ｃ），（ｄ）において、１１は陽極箔で、こ
の陽極箔１１は弁作用金属であるアルミニウム箔をエッ
チングにより粗面化した後、陽極酸化により誘電体酸化
皮膜を形成したものであり、そして図１（ａ）に示すよ
うに、小径のリード接続孔１１ａと大径のリード逃がし
孔１１ｂを対角線上に相対向して設けている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 (a), (b), (c), and (d) show constituent parts of a capacitor element in an electrolytic capacitor according to an embodiment of the present invention.
In (b), (c), and (d), 11 is an anode foil, and this anode foil 11 was formed by roughening an aluminum foil which is a valve metal by etching and then forming a dielectric oxide film by anodic oxidation. As shown in FIG. 1 (a), a small diameter lead connection hole 11a and a large diameter lead escape hole 11b are provided diagonally opposite to each other.
【００１４】１２は陽極箔１１と対極するアルミニウム
箔よりなる陰極箔で、この陰極箔１２は図１（ａ），
（ｂ）に示すように陽極箔１１と同じ大きさに形成さ
れ、そして陽極箔１１と同様、小径のリード接続孔１２
ａと大径のリード逃がし孔１２ｂを対角線上に相対向し
て設けている。１３は陽極箔１１と陰極箔１２の間に介
在されて陽極箔１１と陰極箔１２が直接接触するのを防
止する絶縁体の役目を果たすセパレータで、このセパレ
ータ１３は図１（ａ），（ｂ）に示すように、陽極箔１
１および陰極箔１２より大きめに形成され、そして対角
線上に大径のリード逃がし孔１３ａを相対向して設けて
いる。Reference numeral 12 is a cathode foil made of an aluminum foil opposite to the anode foil 11. This cathode foil 12 is shown in FIG.
As shown in (b), it is formed in the same size as the anode foil 11, and like the anode foil 11, has a small diameter lead connection hole 12.
a and a large diameter lead escape hole 12b are provided diagonally opposite to each other. Reference numeral 13 denotes a separator which is interposed between the anode foil 11 and the cathode foil 12 and serves as an insulator that prevents the anode foil 11 and the cathode foil 12 from directly contacting each other. The separator 13 is shown in FIGS. As shown in b), anode foil 1
1 and the cathode foil 12 are formed to be larger than each other, and large-diameter lead escape holes 13a are provided on a diagonal line so as to face each other.
【００１５】そしてこれらの陽極箔１１、陰極箔１２、
セパレータ１３を用いてコンデンサ素子を構成する場
合、陽極箔１１、セパレータ１３、陰極箔１２を、図１
（ａ），（ｂ）に示すように、陽極箔１１のリード接続
孔１１ａあるいはリード逃がし孔１１ｂと陰極箔１２の
リード逃がし孔１２ｂあるいはリード接続孔１２ａが対
応するように順次積層し、そして図１（ｄ）に示すよう
に固定テープ１４で固定することによりコンデンサ素子
１５を構成し、またリード線よりなる陽極リード部材１
６および陰極リード部材１７は図１（ｂ），（ｃ）に示
すように接続している。すなわち、陽極リード部材１６
は陽極箔１１に設けた小径のリード接続孔１１ａにかし
め、圧着、超音波溶着等により接続している。一方、陰
極リード部材１７は陰極箔１２に設けた小径のリード接
続孔１２ａにかしめ、圧着、超音波溶着等により接続し
ている。These anode foil 11, cathode foil 12,
When the capacitor element is formed by using the separator 13, the anode foil 11, the separator 13, and the cathode foil 12 are formed as shown in FIG.
As shown in (a) and (b), the lead connection hole 11a or the lead escape hole 11b of the anode foil 11 and the lead escape hole 12b or the lead connection hole 12a of the cathode foil 12 are sequentially laminated so as to correspond to each other, and As shown in FIG. 1 (d), the capacitor element 15 is formed by fixing with the fixing tape 14, and the anode lead member 1 including the lead wire is also formed.
6 and the cathode lead member 17 are connected as shown in FIGS. 1 (b) and 1 (c). That is, the anode lead member 16
Is caulked into a small diameter lead connection hole 11a provided in the anode foil 11 and is connected by pressure bonding, ultrasonic welding or the like. On the other hand, the cathode lead member 17 is caulked into the small diameter lead connection hole 12a provided in the cathode foil 12, and is connected by pressure bonding, ultrasonic welding or the like.
【００１６】また、このコンデンサ素子１５は、駆動用
電解液を含浸させた後、図２に示すような外装部材１８
内に装備し、かつ縁部を溶着１９によって封止すること
により平板型の電解コンデンサを構成している。Further, the capacitor element 15 is impregnated with a driving electrolytic solution, and then, an exterior member 18 as shown in FIG.
A flat plate type electrolytic capacitor is configured by being mounted inside and sealing the edges by welding 19.
【００１７】図３（ａ），（ｂ）および図４（ａ），
（ｂ）は陽極箔１１および陰極箔１２の生産手順を示し
たもので、陽極箔１１は、図３（ａ）に示すように、小
径のリード接続孔１１ａと大径のリード逃がし孔１１ｂ
を複数個等間隔に設けた帯状の陽極箔１１を用い、この
帯状の陽極箔１１において、大径のリード逃がし孔１１
ｂと小径のリード接続孔１１ａとの間で切断２０を行う
ことにより、図３（ｂ）に示すように小径のリード接続
孔１１ａと大径のリード逃がし孔１１ｂを有する個片状
の陽極箔１１を構成している。また陰極箔１２も陽極箔
１１と同様、図４（ａ）に示すように、大径のリード逃
がし孔１２ｂと小径のリード接続孔１２ａを複数個等間
隔に設けた帯状の陰極箔１２を用い、この帯状の陰極箔
１２において、小径のリード接続孔１２ａと大径のリー
ド逃がし孔１２ｂとの間で切断２１を行うことにより、
図４（ｂ）に示すように大径のリード逃がし孔１２ｂと
小径のリード接続孔１２ａを有する個片状の陰極箔１２
を構成している。3 (a) and 3 (b) and FIG. 4 (a),
3B shows a production procedure of the anode foil 11 and the cathode foil 12. As shown in FIG. 3A, the anode foil 11 has a small diameter lead connection hole 11a and a large diameter lead escape hole 11b.
A plurality of strip-shaped anode foils 11 provided at equal intervals are used. In the strip-shaped anode foil 11, a large diameter lead escape hole 11 is formed.
By cutting 20 between the small diameter lead connecting hole 11a and the small diameter lead connecting hole 11a, the individual anode foil having the small diameter lead connecting hole 11a and the large diameter lead releasing hole 11b as shown in FIG. 11 is composed. Similarly to the anode foil 11, the cathode foil 12 uses a strip-shaped cathode foil 12 having a plurality of large-diameter lead escape holes 12b and small-diameter lead connection holes 12a provided at equal intervals, as shown in FIG. 4 (a). In this strip-shaped cathode foil 12, by cutting 21 between the small diameter lead connection hole 12a and the large diameter lead escape hole 12b,
As shown in FIG. 4B, a piece of cathode foil 12 having a large diameter lead escape hole 12b and a small diameter lead connection hole 12a.
Is composed of.
【００１８】上記した本発明の一実施例の電解コンデン
サによれば、小径のリード接続孔１１ａと大径のリード
逃がし孔１１ｂを有する陽極箔１１と、同じく小径のリ
ード接続孔１２ａと大径のリード逃がし孔１２ｂを有す
る陰極箔１２と、前記陽極箔１１と陰極箔１２の間に介
在され、かつ大径のリード逃がし孔１３ａを有するセパ
レータ１３とを有し、前記陽極箔１１、セパレータ１
３、陰極箔１２を、陽極箔１１の小径のリード接続孔１
１ａあるいは大径のリード逃がし孔１１ｂと陰極箔１２
の大径のリード逃がし孔１２ｂあるいは小径のリード接
続孔１２ａが対応するように順次積層することによりコ
ンデンサ素子１５を構成するとともに、陽極箔１１の小
径のリード接続孔１１ａにリード線よりなる陽極リード
部材１６をかしめ、圧着、超音波溶着等により接続し、
さらに陰極箔１２の小径のリード接続孔１２ａにリード
線よりなる陰極リード部材１７をかしめ、圧着、超音波
溶着等により接続するようにしているため、コンデンサ
素子１５全体の大きさとしては、図５で示した従来のよ
うにセパレータ紙３を中心にして陽極箔１と陰極箔２を
横方向、すなわち相反する方向にずらしたものに比較し
て小さくすることができ、これにより、電解コンデンサ
自体の小型化が図れるとともに、陽極リード部材１６と
陰極リード部材１７のコンデンサ素子１５からの導出
も、陽極箔１１の小径のリード接続孔１１ａに陽極リー
ド部材１６を接続するとともに、陰極箔１２の小径のリ
ード接続孔１２ａに陰極リード部材１７を接続するだけ
で容易に行えるため、コスト高になることなく、効果的
に行うことができる。According to the above-described electrolytic capacitor of one embodiment of the present invention, the anode foil 11 having the small diameter lead connecting hole 11a and the large diameter lead escape hole 11b, and the small diameter lead connecting hole 12a and the large diameter lead connecting hole 12a are also used. The anode foil 11 and the separator 1 have a cathode foil 12 having a lead escape hole 12b and a separator 13 interposed between the anode foil 11 and the cathode foil 12 and having a large diameter lead escape hole 13a.
3, the cathode foil 12, the small diameter lead connection hole 1 of the anode foil 11
1a or large diameter lead escape hole 11b and cathode foil 12
The large-diameter lead escape hole 12b or the small-diameter lead connection hole 12a is sequentially laminated so as to correspond to each other to form the capacitor element 15, and the anode foil 11 has a small-diameter lead connection hole 11a. Caulking the member 16, connecting by crimping, ultrasonic welding, etc.,
Further, since the cathode lead member 17 made of a lead wire is caulked into the small-diameter lead connection hole 12a of the cathode foil 12 and is connected by pressure bonding, ultrasonic welding or the like, the overall size of the capacitor element 15 is as shown in FIG. It is possible to make the size smaller than the conventional one in which the anode foil 1 and the cathode foil 2 are displaced laterally, that is, in opposite directions, with the separator paper 3 as the center. In addition to miniaturization, the anode lead member 16 and the cathode lead member 17 can be led out from the capacitor element 15 by connecting the anode lead member 16 to the lead connecting hole 11a having a small diameter in the anode foil 11 and reducing the diameter of the cathode foil 12. Since it can be easily performed only by connecting the cathode lead member 17 to the lead connection hole 12a, it can be effectively performed without increasing the cost.
【００１９】しかも本発明の一実施例の電解コンデンサ
は平板型であるため、従来の巻回方式の電解コンデンサ
のように、リアクタンス成分が発生することもなく、こ
れにより、高周波におけるインピーダンスも低くなって
周波数特性も良好なものが得られる。Moreover, since the electrolytic capacitor of one embodiment of the present invention is a flat plate type, unlike the conventional winding type electrolytic capacitor, no reactance component is generated, thereby lowering the impedance at high frequencies. As a result, good frequency characteristics are obtained.
【００２０】また本発明の一実施例の電解コンデンサ
は、陽極箔１１と陰極箔１２を構成する場合、小径のリ
ード接続孔１１ａと大径のリード逃がし孔１１ｂを等間
隔に複数個設けた帯状の陽極箔１１を大径のリード逃が
し孔１１ｂと小径のリード接続孔１１ａとの間で切断２
０を行うことにより、小径のリード接続孔１１ａと大径
のリード逃がし孔１１ｂを有する個片状の陽極箔１１を
構成するとともに、同じく小径のリード接続孔１２ａと
大径のリード逃がし孔１２ｂを等間隔に複数個設けた帯
状の陰極箔１２を小径のリード接続孔１２ａと大径のリ
ード逃がし孔１２ｂとの間で切断２１を行うことによ
り、小径のリード接続孔１２ａと大径のリード逃がし孔
１２ｂを有する個片状の陰極箔１２を構成するようにし
ているため、陽極箔１１および陰極箔１２の生産も帯状
のものから効率よく合理的に行うことができるものであ
る。Further, in the electrolytic capacitor of one embodiment of the present invention, when the anode foil 11 and the cathode foil 12 are constituted, a strip-shaped lead connecting hole 11a having a small diameter and a plurality of lead releasing holes 11b having a large diameter are provided at equal intervals. Cutting the anode foil 11 between the large diameter lead escape hole 11b and the small diameter lead connection hole 11a 2
By performing 0, an individual piece of anode foil 11 having a small-diameter lead connecting hole 11a and a large-diameter lead releasing hole 11b is formed, and also a small-diameter lead connecting hole 12a and a large-diameter lead releasing hole 12b are formed. A plurality of strip-shaped cathode foils 12 provided at equal intervals are cut 21 between the small-diameter lead connection hole 12a and the large-diameter lead escape hole 12b, so that the small-diameter lead connection hole 12a and the large-diameter lead escape hole are released. Since the individual cathode foil 12 having the holes 12b is configured, the anode foil 11 and the cathode foil 12 can be efficiently and rationally produced from the belt-shaped one.
【００２１】なお、上記本発明の一実施例における陽極
箔１１、陰極箔１２、セパレータ１３の形状は、特に限
定されるものではないが、長方形状または正方形状が好
ましい。The shapes of the anode foil 11, the cathode foil 12 and the separator 13 in the above embodiment of the present invention are not particularly limited, but are preferably rectangular or square.
【００２２】[0022]
【発明の効果】以上のように本発明の電解コンデンサ
は、リード接続孔とリード逃がし孔を有する陽極箔と、
同じくリード接続孔とリード逃がし孔を有する陰極箔
と、前記陽極箔と陰極箔の間に介在され、かつリード逃
がし孔を有するセパレータとを有し、前記陽極箔、セパ
レータ、陰極箔を、陽極箔のリード接続孔あるいはリー
ド逃がし孔と陰極箔のリード逃がし孔あるいはリード接
続孔が対応するように順次積層することによりコンデン
サ素子を構成するとともに、陽極箔のリード接続孔に陽
極リード部材を接続し、さらに陰極箔のリード接続孔に
陰極リード部材を接続するようにしているため、コンデ
ンサ素子全体の大きさとしては、従来のようにセパレー
タ紙を中心にして陽極箔と陰極箔を横方向、すなわち相
反する方向にずらしたものに比較して小さくすることが
でき、これにより、電解コンデンサ自体の小型化が図れ
るとともに、陽極リード部材と陰極リード部材のコンデ
ンサ素子からの導出も、陽極箔のリード接続孔に陽極リ
ード部材を接続するとともに、陰極箔のリード接続孔に
陰極リード部材を接続するだけで容易に行えるため、コ
スト高になることなく、効果的に行え、しかも平板型の
電解コンデンサであるため、従来の巻回方式のように、
リアクタンス成分が発生することもなく、これにより、
高周波におけるインピーダンスも低くなって周波数特性
も良好なものが得られる。As described above, the electrolytic capacitor of the present invention comprises the anode foil having the lead connection hole and the lead escape hole,
Similarly, a cathode foil having a lead connection hole and a lead escape hole, and a separator interposed between the anode foil and the cathode foil and having a lead escape hole, the anode foil, the separator, the cathode foil, the anode foil The lead connection hole or the lead escape hole and the cathode foil lead escape hole or the lead connection hole to form a capacitor element by sequentially stacking corresponding to each other, while connecting the anode lead member to the lead connection hole of the anode foil, Furthermore, since the cathode lead member is connected to the lead connection hole of the cathode foil, the overall size of the capacitor element is the same as in the conventional case, with the separator paper as the center and the anode foil and the cathode foil in the lateral direction, that is, in the opposite direction. The size of the electrolytic capacitor itself can be reduced and the size of the electrolytic capacitor can be reduced. The lead member and the cathode lead member can be easily derived from the capacitor element by simply connecting the anode lead member to the lead connection hole of the anode foil and the cathode lead member to the lead connection hole of the cathode foil. Since it is a flat plate type electrolytic capacitor that can be effectively performed without increasing the cost, like the conventional winding method,
Since no reactance component is generated, this
The impedance at high frequencies is also low, and good frequency characteristics can be obtained.
【００２３】また、上記電解コンデンサは、陽極箔と陰
極箔を構成する場合、リード接続孔とリード逃がし孔を
等間隔に複数個設けた帯状の陽極箔をリード逃がし孔と
リード接続孔との間で切断することにより、リード接続
孔とリード逃がし孔を有する個片状の陽極箔を構成する
とともに、同じくリード接続孔とリード逃がし孔を等間
隔に複数個設けた帯状の陰極箔をリード接続孔とリード
逃がし孔との間で切断することにより、リード接続孔と
リード逃がし孔を有する個片状の陰極箔を構成するよう
にしているため、陽極箔および陰極箔の生産も帯状のも
のから効率よく合理的に行うことができるものである。Further, in the above electrolytic capacitor, when the anode foil and the cathode foil are formed, a strip-shaped anode foil provided with a plurality of lead connection holes and lead escape holes at equal intervals is provided between the lead escape holes and the lead connection holes. By cutting with, a piece of anode foil having lead connection holes and lead escape holes is formed, and a strip-shaped cathode foil having a plurality of lead connection holes and lead escape holes at equal intervals is also used. By cutting between the lead release hole and the lead release hole, a piece of cathode foil having a lead connection hole and a lead release hole is formed, so that the production of the anode foil and the cathode foil is also efficient from the strip shape. It can be done reasonably well.
【図１】（ａ）本発明の一実施例における電解コンデン
サの陽極箔、セパレータ、陰極箔を積層した状態を示す
斜視図 （ｂ）同電解コンデンサにおける陽極箔、セパレータ、
陰極箔を積層したものに陽極、陰極リード部材を接続す
る前の状態を示す断面図 （ｃ）同陽極、陰極リード部材を接続した後の状態を示
す断面図 （ｄ）同電解コンデンサのコンデンサ素子を示す斜視図FIG. 1 (a) is a perspective view showing a state in which an anode foil, a separator and a cathode foil of an electrolytic capacitor according to an embodiment of the present invention are laminated (b) an anode foil, a separator in the electrolytic capacitor,
Sectional view showing the state before connecting the anode and the cathode lead member to the laminated cathode foil (c) Sectional view showing the state after connecting the anode and the cathode lead member (d) Capacitor element of the electrolytic capacitor Perspective view showing
【図２】同電解コンデンサの外観を示す斜視図FIG. 2 is a perspective view showing the appearance of the electrolytic capacitor.
【図３】（ａ）同電解コンデンサの陽極箔の生産前の状
態を示す斜視図 （ｂ）同陽極箔の個片状態を示す斜視図FIG. 3A is a perspective view showing a state before production of an anode foil of the same electrolytic capacitor. FIG. 3B is a perspective view showing an individual state of the anode foil.
【図４】（ａ）同電解コンデンサの陰極箔の生産前の状
態を示す斜視図 （ｂ）同陰極箔の個片状態を示す斜視図FIG. 4A is a perspective view showing a state before production of a cathode foil of the electrolytic capacitor, and FIG. 4B is a perspective view showing a state of individual pieces of the cathode foil.
【図５】従来の電解コンデンサにおけるコンデンサ素子
の分解斜視図FIG. 5 is an exploded perspective view of a capacitor element in a conventional electrolytic capacitor
１１ 陽極箔 １１ａ リード接続孔 １１ｂ リード逃がし孔 １２ 陰極箔 １２ａ リード接続孔 １２ｂ リード逃がし孔 １３ セパレータ １３ａ リード逃がし孔 １５ コンデンサ素子 １６ 陽極リード部材 １７ 陰極リード部材 11 Anode foil 11a Lead connection hole 11b Lead escape hole 12 Cathode foil 12a Lead connection hole 12b Lead escape hole 13 Separator 13a Lead escape hole 15 Capacitor element 16 Anode lead member 17 Cathode lead member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 服部 修治 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shuji Hattori 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.
Claims (2)
極箔と、同じくリード接続孔とリード逃がし孔を有する
陰極箔と、前記陽極箔と陰極箔の間に介在されかつリー
ド逃がし孔を有するセパレータとを有し、前記陽極箔、
セパレータ、陰極箔を、陽極箔のリード接続孔あるいは
リード逃がし孔と陰極箔のリード逃がし孔あるいはリー
ド接続孔が対応するように順次積層することによりコン
デンサ素子を構成するとともに、陽極箔のリード接続孔
に陽極リード部材を接続し、さらに陰極箔のリード接続
孔に陰極リード部材を接続してなる電解コンデンサ。1. An anode foil having a lead connection hole and a lead escape hole, a cathode foil having a lead connection hole and a lead escape hole, and a separator interposed between the anode foil and the cathode foil and having a lead escape hole. And having the anode foil,
A capacitor element is constructed by sequentially stacking a separator and a cathode foil so that the lead connection hole or lead escape hole of the anode foil and the lead escape hole or lead connection hole of the cathode foil correspond to each other, and also the lead connection hole of the anode foil. An electrolytic capacitor obtained by connecting an anode lead member to, and a cathode lead member in a lead connecting hole of a cathode foil.
複数個設けた帯状の陽極箔をリード逃がし孔とリード接
続孔との間で切断することにより、リード接続孔とリー
ド逃がし孔を有する個片状の陽極箔を構成するととも
に、同じくリード接続孔とリード逃がし孔を等間隔に複
数個設けた帯状の陰極箔をリード接続孔とリード逃がし
孔との間で切断することにより、リード接続孔とリード
逃がし孔を有する個片状の陰極箔を構成し、前記個片状
の陽極箔、リード逃がし孔を有するセパレータおよび前
記個片状の陰極箔を、陽極箔のリード接続孔あるいはリ
ード逃がし孔と陰極箔のリード逃がし孔あるいはリード
接続孔が対応するように順次積層することによりコンデ
ンサ素子を構成するとともに、陽極箔のリード接続孔に
陽極リード部材を接続し、さらに陰極箔のリード接続孔
に陰極リード部材を接続するようにした電解コンデンサ
の製造方法。2. A lead connection hole and a lead escape hole are provided by cutting a strip-shaped anode foil having a plurality of lead connection holes and lead escape holes at equal intervals between the lead escape holes and the lead connection holes. By forming a strip-shaped anode foil and cutting a strip-shaped cathode foil that also has a plurality of lead connection holes and lead escape holes at equal intervals between the lead connection holes and the lead escape holes, lead connection is performed. A piece-shaped cathode foil having a hole and a lead escape hole is formed, and the piece-shaped anode foil, a separator having a lead escape hole, and the piece-shaped cathode foil are used as lead connection holes or lead escapes of the anode foil. A capacitor element is constructed by sequentially stacking the holes so that the lead escape holes or the lead connection holes of the cathode foil correspond to each other, and the anode lead member is connected to the lead connection holes of the anode foil. And, method of manufacturing an electrolytic capacitor as further connecting the cathode lead member to the lead connecting hole of the cathode foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4128477A JPH05326339A (en) | 1992-05-21 | 1992-05-21 | Electrolytic capacitor and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4128477A JPH05326339A (en) | 1992-05-21 | 1992-05-21 | Electrolytic capacitor and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05326339A true JPH05326339A (en) | 1993-12-10 |
Family
ID=14985709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4128477A Pending JPH05326339A (en) | 1992-05-21 | 1992-05-21 | Electrolytic capacitor and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05326339A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080205A1 (en) * | 2001-03-29 | 2002-10-10 | Matsushita Electric Industrial Co., Ltd. | Composite electronic components |
| WO2023120708A1 (en) * | 2021-12-24 | 2023-06-29 | パナソニックＩｐマネジメント株式会社 | Electrolytic capacitor and method for manufacturing electrolytic capacitor |
-
1992
- 1992-05-21 JP JP4128477A patent/JPH05326339A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080205A1 (en) * | 2001-03-29 | 2002-10-10 | Matsushita Electric Industrial Co., Ltd. | Composite electronic components |
| JP2002299161A (en) * | 2001-03-29 | 2002-10-11 | Matsushita Electric Ind Co Ltd | Composite electronic component |
| US6741448B2 (en) | 2001-03-29 | 2004-05-25 | Matsushita Electric Industrial Co., Ltd. | Composite electronic components |
| WO2023120708A1 (en) * | 2021-12-24 | 2023-06-29 | パナソニックＩｐマネジメント株式会社 | Electrolytic capacitor and method for manufacturing electrolytic capacitor |
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