JPS6329816B2 - - Google Patents
Info
- Publication number
- JPS6329816B2 JPS6329816B2 JP11383580A JP11383580A JPS6329816B2 JP S6329816 B2 JPS6329816 B2 JP S6329816B2 JP 11383580 A JP11383580 A JP 11383580A JP 11383580 A JP11383580 A JP 11383580A JP S6329816 B2 JPS6329816 B2 JP S6329816B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electrolytic capacitor
- anode
- cathode
- electrolytic
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 22
- 239000008151 electrolyte solution Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【発明の詳細な説明】
本発明は電解コンデンサのインピーダンスの改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improving the impedance of electrolytic capacitors.
一般に電解コンデンサは第１図および第２図に
示すように２枚の電極箔１，２に引出リード板
３，４を加締などにより接続せしめた後、電解紙
５を介して巻回しコンデンサ素子６を形成する。 Generally, an electrolytic capacitor is manufactured by connecting lead plates 3 and 4 to two electrode foils 1 and 2 by caulking, etc., and then winding the capacitor element with electrolytic paper 5 interposed therebetween, as shown in FIGS. 1 and 2. form 6.
次にコンデンサ素子６に電解液を含浸せしめた
後、あらかじめ封口板８に装着した外部端子７と
コンデンサ素子６より導出せる引出リード板３，
４とを接続せしめ、アルミニウムなどよりなるケ
ース９に素子固定材１０を注入後コンデンサ素子
６を挿入し、ケース９の開口端部を巻締め密封し
て構成されている。 Next, after impregnating the capacitor element 6 with the electrolyte, the external terminal 7 attached to the sealing plate 8 in advance and the lead plate 3 which can be led out from the capacitor element 6,
After injecting an element fixing material 10 into a case 9 made of aluminum or the like, the capacitor element 6 is inserted, and the open end of the case 9 is sealed by wrapping.
最近のスイツチングレギユレータなどに使用さ
れる電解コンデンサは高周波におけるインピーダ
ンスの低減が要求されていることは公知である。
高周波におけるインピーダンスを低減する方法と
しては積層タイプや、電極箔をコンデンサ素子よ
りはみ出させてその断面に引出リード端子を溶接
せしめる方法がとられているが、何れも信頼性、
特に腐蝕性や接触抵抗の面で何らかの不良が発生
して実用的でないものが多かつた。 It is well known that electrolytic capacitors used in recent switching regulators and the like are required to have reduced impedance at high frequencies.
Methods for reducing impedance at high frequencies include a laminated type and a method in which the electrode foil protrudes from the capacitor element and a lead terminal is welded to the cross section of the electrode foil, but both methods have poor reliability and
In particular, many of them were impractical due to some kind of defect in terms of corrosion and contact resistance.
本発明は上述の欠点を除去し、高周波における
インピーダンスを著しく低減せしめた電解コンデ
ンサを提供しようとするものである。 The present invention aims to eliminate the above-mentioned drawbacks and provide an electrolytic capacitor whose impedance at high frequencies is significantly reduced.
以下本発明を第３図〜第７図に示す実施例につ
いて説明する。 The present invention will be described below with reference to embodiments shown in FIGS. 3 to 7.
まず第３図に示すように正四角柱状に成形され
た高純度アルミニウム棒を陽極用にはエツチン
グ、化成をして陽極電極１１を作成し、また陰極
用にはアルミニウム棒をエツチングして陰極電極
１１′を作成し、該陰極電極１１′の外周部へセパ
レータ１２を巻き付け、所定の長さに多数個切断
する。 First, as shown in Figure 3, a high-purity aluminum rod shaped into a regular square prism is etched and anodized to create an anode electrode 11 for the anode, and an aluminum rod is etched for the cathode. A separator 12 is wound around the outer periphery of the cathode electrode 11', and a large number of pieces are cut to a predetermined length.
次に切断されたアルミニウム正四角柱状陽極電
極および陰極電極を第４図に示すように互いに陽
極電極の側面と陰極電極の側面とがセパレータ１
２を介して接するように配置して６面体素子１３
を形成し、第５図に示すようにアルミニウム正四
角柱状電極の断面部以外の４面を絶縁テープ１４
などで加圧しながら巻締める。 Next, as shown in FIG.
Hexahedral elements 13 arranged so as to be in contact with each other through 2
As shown in FIG.
Tighten while applying pressure.
次に第６図に示すように６面体素子１３に電解
液を含浸し、同極のアルミニウム正四角柱状電極
の断面同志を対向する異極と短絡しないように公
知の方法、たとえば該異極を通過する部分または
近傍の部分を絶縁物で被覆したアルミニウム線材
などからなる電極引出リード１５および１５′に
よつて溶接接続するか、あるいは陽極電極および
陰極電極の電極引出リードと接続する部分を除い
て絶縁物で被覆した後、電極引出リード１５およ
び１５′によつて溶接接続し第７図に示すように
あらかじめモールドなどして封口板１６に装着さ
れた外部端子１９および１９′と、上記電極引出
リード１５および１５′とをそれぞれ溶接し、ア
ルミニウムなどのケースに収納して密閉したもの
である。 Next, as shown in FIG. 6, the hexahedral element 13 is impregnated with an electrolytic solution, and the cross-sections of the aluminum regular square prism electrodes of the same polarity are heated using a known method, for example, so as not to short-circuit the opposite polarity with the opposite polarity. The passing part or the nearby part is connected by welding with electrode lead leads 15 and 15' made of aluminum wire coated with an insulating material, or except for the part connected to the electrode lead leads of the anode and cathode electrodes. After being coated with an insulating material, the external terminals 19 and 19' are welded and connected by the electrode lead leads 15 and 15', and as shown in FIG. The leads 15 and 15' are welded to each other and housed in a case made of aluminum or the like and hermetically sealed.
本発明の電解コンデンサは上述のようにして構
成されているので、内部構造が電極を多分割した
ものと同一構造となり、しかも従来のような巻回
形でなく、無誘導形低インピーダンスコンデンサ
を構成することができる。 Since the electrolytic capacitor of the present invention is constructed as described above, the internal structure is the same as that of a multi-divided electrode, and it is a non-inductive low impedance capacitor instead of the conventional wound type. can do.
上記実施例は陽極電極および陰極電極が正四角
柱状の場合について説明したが、陽極電極および
陰極電極が長方形柱状または三角柱状あるいは二
等辺三角柱状の場合であつてもよい。 In the above embodiments, the anode electrode and the cathode electrode have a square prism shape, but the anode electrode and the cathode electrode may have a rectangular prism shape, a triangular prism shape, or an isosceles triangular prism shape.
第８図は定格25WV、12000μFの電解コンデン
サについて本発明品と従来品とを比較した周波数
−インピーダンス特性図で、本発明品は高周波に
おけるインピーダンスが著しく改善されているこ
とが判る。 FIG. 8 is a frequency-impedance characteristic diagram comparing the product of the present invention and the conventional product for electrolytic capacitors with a rating of 25 WV and 12,000 μF. It can be seen that the product of the present invention has significantly improved impedance at high frequencies.
以上のように本発明の電解コンデンサは、従来
の製造方法、設備を利用して製作でき、しかも特
性的にも信頼性の面でも大きな効果が得られ、工
業的ならびに実用的価値の大なるものである。 As described above, the electrolytic capacitor of the present invention can be manufactured using conventional manufacturing methods and equipment, has great effects in terms of characteristics and reliability, and has great industrial and practical value. It is.
第１図は従来の電解コンデンサの断面図、第２
図は従来の電解コンデンサ素子の要部展開斜視
図、第３〜第７図は本発明の電解コンデンサの一
実施例で、第３図イは陽極電極の斜視図、ロはセ
パレータを巻き付けた陰極電極の斜視図、第４図
および第５図は６面体素子の斜視図、第６図は６
面体素子の電極引出リード接続の説明図、第７図
はイは完成した電解コンデンサの断面図、第７図
ロは同電解コンデンサの平面図、第８図は電解コ
ンデンサの周波数−インピーダンス特性図であ
る。
１１：陽極電極、１１′：陰極電極、１２：セ
パレータ、１５，１５′：電極引出しリード、１
８：ケース。
Figure 1 is a sectional view of a conventional electrolytic capacitor, Figure 2 is a cross-sectional view of a conventional electrolytic capacitor.
The figure is an exploded perspective view of the main parts of a conventional electrolytic capacitor element, Figures 3 to 7 are an embodiment of the electrolytic capacitor of the present invention, Figure 3A is a perspective view of the anode electrode, and Figure 3B is a cathode wrapped with a separator. A perspective view of an electrode, FIGS. 4 and 5 are perspective views of a hexahedral element, and FIG. 6 is a perspective view of a hexahedral element.
An explanatory diagram of the electrode lead connection of the face element. Figure 7 is a cross-sectional view of the completed electrolytic capacitor, Figure 7 b is a plan view of the same electrolytic capacitor, and Figure 8 is a frequency-impedance characteristic diagram of the electrolytic capacitor. be. 11: Anode electrode, 11': Cathode electrode, 12: Separator, 15, 15': Electrode extraction lead, 1
8: Case.
Claims (1)
長方形柱状のいずれかの形状に成形し所定の長さ
に切断した陽極電極と、該陽極電極と同形状に成
形し外周部にセパレータを巻き付け所定の長さに
切断した陰極電極とを側面が互いに接するように
複数個配置して電解液を含浸し、上記陽極電極同
志および陰極電極同志の断面部に電極引出リード
をそれぞれ接続したことを特徴とする電解コンデ
ンサ。1 Equilateral triangular prism, isosceles triangular prism, regular quadrangular prism,
An anode electrode formed into a rectangular columnar shape and cut to a predetermined length, and a cathode electrode formed into the same shape as the anode electrode, wrapped with a separator around the outer periphery and cut to a predetermined length, are placed so that their sides are mutually opposite to each other. 1. An electrolytic capacitor characterized in that a plurality of capacitors are arranged so as to be in contact with each other and impregnated with an electrolytic solution, and electrode lead leads are connected to the cross sections of the anode electrodes and the cathode electrodes, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11383580A JPS5737819A (en) | 1980-08-18 | 1980-08-18 | Electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11383580A JPS5737819A (en) | 1980-08-18 | 1980-08-18 | Electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5737819A JPS5737819A (en) | 1982-03-02 |
| JPS6329816B2 true JPS6329816B2 (en) | 1988-06-15 |
Family
ID=14622232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11383580A Granted JPS5737819A (en) | 1980-08-18 | 1980-08-18 | Electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5737819A (en) |
-
1980
- 1980-08-18 JP JP11383580A patent/JPS5737819A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5737819A (en) | 1982-03-02 |
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