JPS6353687B2 - - Google Patents
Info
- Publication number
- JPS6353687B2 JPS6353687B2 JP14794980A JP14794980A JPS6353687B2 JP S6353687 B2 JPS6353687 B2 JP S6353687B2 JP 14794980 A JP14794980 A JP 14794980A JP 14794980 A JP14794980 A JP 14794980A JP S6353687 B2 JPS6353687 B2 JP S6353687B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode foil
- lead plate
- electrode
- capacitor
- capacitor element
- 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 28
- 239000011888 foil Substances 0.000 claims description 22
- 238000004804 winding Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【発明の詳細な説明】
本発明はインピーダンス特性を改良した電解コ
ンデンサに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrolytic capacitor with improved impedance characteristics.
一般に電極コンデンサは第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を介して巻回してコンデンサ素子６を形成す
る。 Generally, an electrode capacitor is made by connecting two electrode foils 1 and 2 to lead plates 3 and 4 by caulking, etc., and then winding them with electrolytic paper 5 interposed between them. Element 6 is formed.
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に
該コンデンサ素子６より導出せる引出リード板
３，４を接続せしめてアルミニウムなどよりなる
コンデンサケース９に素子固定材１０を注入後、
コンデンサケース９にコンデンサ素子６を挿入
し、コンデンサケース９の開口端部を巻締め密封
して完成されている。 Next, after impregnating the capacitor element 6 with an electrolytic solution, the lead plates 3 and 4 that can be led out from the capacitor element 6 are connected to the external terminal 7 attached to the sealing plate 8 in advance, and the capacitor case 9 is made of aluminum or the like. After injecting the element fixing material 10,
The capacitor element 6 is inserted into the capacitor case 9, and the open end of the capacitor 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す
る電解コンデンサは高周波における低インピーダ
ンス品が要求されており、上述のようなコンデン
サは高周波におけるインピーダンスが大きく、そ
のために電極箔を電解紙を介して互いに積重ねて
なる積層形や、電極箔をコンデンサ素子よりはみ
出させるよう巻回し、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、いずれも
信頼性、特に腐蝕性や接触抵抗の面で何等かの不
良が発生して実用的にはならないものが多かつ
た。 Electrolytic capacitors used in recent switching regulators are required to have low impedance at high frequencies, and the capacitors mentioned above have large impedance at high frequencies, so electrode foils are stacked on top of each other with electrolytic paper interposed between them. A laminated type is used, and a method is used in which the electrode foil is wound so as to protrude from the capacitor element, and a lead terminal is welded to the cross section of the electrode foil, but both methods have some problems in terms of reliability, especially in terms of corrosion resistance and contact resistance. In many cases, defects occurred, rendering them impractical.
本発明は上述の欠陥を解消し、高周波における
低インピーダンス化をはかつたものである。 The present invention eliminates the above-mentioned defects and lowers the impedance at high frequencies.
以下、本発明を第３図〜第９図に示す実施例に
ついて説明する。第３図に示すような偏平長方体
状の巻芯１１の上面に一方の極の引出リード板１
２がくるように該引出リード板１２と接続した電
極箔１３で巻芯１１を略コの字状に包み込み（第
４図参照）、次に第５図に示すように該電極箔１
３を覆うように電解紙などのセパレータ１４で巻
芯１１の側周面を巻き、次に第６図のように他の
電極箔１５を該電極箔１５と接続した引出リード
板１６が巻芯１１の下面にくるように略コの字状
に上述の電極箔１３をセパレータ１４を介して包
み込む。このようにして相対する電極箔を第７図
に示すように所定の枚数セパレータ１４を介して
繰返し重ね合わせる。 The present invention will be described below with reference to embodiments shown in FIGS. 3 to 9. As shown in FIG.
Wrap the winding core 11 in a substantially U-shape with the electrode foil 13 connected to the drawer lead plate 12 so that the electrode foil 13 is connected to the drawer lead plate 12 so that the electrode foil 1
A separator 14 such as electrolytic paper is wrapped around the side circumferential surface of the winding core 11 so as to cover the winding core 11, and then, as shown in FIG. The above-mentioned electrode foil 13 is wrapped around the lower surface of the electrode foil 11 in a substantially U-shape with a separator 14 interposed therebetween. In this way, opposing electrode foils are repeatedly overlapped with a predetermined number of separators 14 in between, as shown in FIG.
以上のようにして製造されたコンデンサ素子１
７に電解液を含浸せしめた後、第８図に示すよう
に引出リード板１２，１６の束を絶縁材１８を介
して背合わせにし、封口板２０にあらかじめ装着
せしめた外部端子２１に各々溶接などして接続せ
しめてコンデンサケース１９に挿入し、封口板２
０と該ケース１９とを溶着、巻締などにより密封
して完成したものである。 Capacitor element 1 manufactured as above
7 is impregnated with an electrolytic solution, the bundle of lead plates 12 and 16 is placed back to back with an insulating material 18 in between, as shown in FIG. etc., connect it, insert it into the capacitor case 19, and seal the sealing plate 2.
0 and the case 19 are sealed by welding, seaming, etc.
本発明の電解コンデンサは以上のようにして構
成されているので、内部構造が電極箔を多分割し
たと同じ構成となり、しかも引出リード板１２，
１６を絶縁物１８を介して背合わせにすることに
より無誘導に近づけることができる。 Since the electrolytic capacitor of the present invention is constructed as described above, the internal structure is the same as that obtained by dividing the electrode foil into multiple parts, and the lead plate 12,
16 are placed back to back with an insulator 18 interposed between them, so that it can be made close to non-inductive.
第９図は定格50WV，4700μF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、図から明らかなよう
に本発明品は数ＫHz以上より著しくインピーダン
スが低減されることが実証され、また腐蝕の発生
もなく信頼性が高いことを確認された。なお、上
述の実施例で電極箔１３，１５の巻回方向とセパ
レータ１４の巻回方向が直角に交差する構造につ
いて説明したが、第１０図および第１１図に示す
ように同一方向に巻回してもよい。この場合一方
の電極箔１３は略コの字形になるが、他の一方の
電極箔１５は該電極箔１５の端部で引出リード板
１６が加締などにより接続されているためにＬ字
状の電極箔１５が２枚必要となるが、巻回後の構
造および第１２図に示すように絶縁物１８を介し
て背中合せに引出リード板１２，１６の束を配置
してなる組立完了後の構造は、上述の実施例と変
らず同様な効果が得られる。 Figure 9 is a frequency-impedance characteristic diagram comparing the product of the present invention and the conventional product for an electrolytic capacitor with a rating of 50WV and 4700μF.As is clear from the figure, the impedance of the product of the present invention is significantly reduced above several KHz. It was confirmed that there was no corrosion and that it was highly reliable. In addition, in the above-mentioned embodiment, the structure in which the winding direction of the electrode foils 13 and 15 and the winding direction of the separator 14 intersect at right angles was explained, but as shown in FIGS. It's okay. In this case, one electrode foil 13 has a substantially U-shape, but the other electrode foil 15 has an L-shape because the lead plate 16 is connected to the end of the electrode foil 15 by caulking or the like. Two sheets of electrode foil 15 are required, but the structure after winding and after assembly is completed in which a bundle of lead plates 12 and 16 are arranged back to back with an insulator 18 in between, as shown in FIG. The structure is unchanged from the above-described embodiment, and the same effects can be obtained.
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, and has great effects in terms of characteristics and reliability, and is of great industrial and practical value. be.
第１図は従来の電解コンデンサの断面図、第２
図は従来のコンデンサ素子の要部展開斜視図、第
３図〜第７図は本発明に係る電解コンデンサ素子
の一実施例の製造過程を示す斜視図、第８図は本
発明の電解コンデンサの一実施例の断面図、第９
図は電解コンデンサの周波数―インピーダンス特
性図、第１０図は本発明に係る電解コンデンサ素
子の他の実施例の巻回説明図、第１１図は第１０
図の電解コンデンサ素子の斜視図、第１２図は本
発明の電解コンデンサの他の実施例の断面図であ
る。
１１：巻芯、１２，１６：引出リード板、１
３，１５：電極箔、１４：セパレータ、１７：コ
ンデンサ素子、１８：絶縁材。
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 essential parts of a conventional capacitor element, Figures 3 to 7 are perspective views showing the manufacturing process of an embodiment of an electrolytic capacitor element according to the present invention, and Figure 8 is an exploded perspective view of the main parts of a conventional capacitor element. Cross-sectional view of one embodiment, No. 9
The figure is a frequency-impedance characteristic diagram of an electrolytic capacitor, FIG. 10 is a winding explanatory diagram of another embodiment of the electrolytic capacitor element according to the present invention, and FIG.
FIG. 12 is a perspective view of the electrolytic capacitor element shown in the figure, and FIG. 12 is a sectional view of another embodiment of the electrolytic capacitor of the present invention. 11: Winding core, 12, 16: Drawer lead plate, 1
3, 15: electrode foil, 14: separator, 17: capacitor element, 18: insulating material.
Claims (1)
出リード板がくるように略コの字状に該引出リー
ド板に接続する電極箔で上記巻芯を覆つた後、電
解紙などのセパレータで覆い、次に上記引出リー
ド板と対向面に他の極のリード板がくるように該
リード板に接続する他方の電極箔を重ね、さらに
セパレータでその電極箔を覆い、これを繰返して
複数組の電極箔を重ね合わせてコンデンサ素子を
形成したことを特徴とする電極コンデンサ。1. After covering the winding core with an electrode foil connected to the lead plate of one pole in a substantially U-shape so that one end face of the flat rectangular parallelepiped winding core is placed on the lead plate of one pole, the core is covered with electrode foil, such as electrolytic paper, etc. Cover with a separator, then overlap the other electrode foil to be connected to the lead plate so that the lead plate of the other pole is on the surface opposite the lead plate, cover the electrode foil with a separator, and repeat this process. An electrode capacitor characterized in that a capacitor element is formed by stacking multiple sets of electrode foils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14794980A JPS5771122A (en) | 1980-10-21 | 1980-10-21 | Electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14794980A JPS5771122A (en) | 1980-10-21 | 1980-10-21 | Electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5771122A JPS5771122A (en) | 1982-05-01 |
| JPS6353687B2 true JPS6353687B2 (en) | 1988-10-25 |
Family
ID=15441707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14794980A Granted JPS5771122A (en) | 1980-10-21 | 1980-10-21 | Electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771122A (en) |
-
1980
- 1980-10-21 JP JP14794980A patent/JPS5771122A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5771122A (en) | 1982-05-01 |
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