JP3291016B2 - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JP3291016B2 JP3291016B2 JP08172192A JP8172192A JP3291016B2 JP 3291016 B2 JP3291016 B2 JP 3291016B2 JP 08172192 A JP08172192 A JP 08172192A JP 8172192 A JP8172192 A JP 8172192A JP 3291016 B2 JP3291016 B2 JP 3291016B2
- Authority
- JP
- Japan
- Prior art keywords
- anode foil
- foil
- electrode lead
- tab
- 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.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 title claims description 20
- 239000011888 foil Substances 0.000 claims description 88
- 238000000605 extraction Methods 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/008—Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は特に陽極を２枚重ねて巻
回するタイプの電解コンデンサの巻取構造の改良に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a winding structure of an electrolytic capacitor of the type in which two anodes are stacked and wound.
【０００２】[0002]
【従来の技術】アルミニウム電解コンデンサは一般に
は、電極引出しタブを接続した陽極箔および陰極箔をセ
パレータを挟んで巻回してコンデンサ素子を構成する。
しかし、ストロボ用コンデンサ等の小形大容量品の場合
には陽極箔を２枚重ねて巻回し、体積効率の増加を図る
ことがある。図３、図４は従来の上記２枚巻コンデンサ
の巻構造を示す断面図である。１１は内側陽極箔、１２
は外側陽極箔、２１は陰極箔、３１はセパレータ、４
１、４２は外側陽極箔１２に接続された電極引出しタブ
である。両電極引出しタブ４１、４２は外側陽極箔１２
の内周側、外周側の同位置に接続されている。2. Description of the Related Art Generally, an aluminum electrolytic capacitor is formed by winding an anode foil and a cathode foil connected to an electrode lead-out tab with a separator interposed therebetween to form a capacitor element.
However, in the case of a small and large-capacity product such as a strobe capacitor, two anode foils may be stacked and wound to increase the volume efficiency. 3 and 4 are cross-sectional views showing a winding structure of the conventional double-wound capacitor. 11 is the inner anode foil, 12
Is the outer anode foil, 21 is the cathode foil, 31 is the separator, 4
Reference numerals 1 and 42 denote electrode lead-out tabs connected to the outer anode foil 12. Both electrode extraction tabs 41 and 42 are connected to the outer anode foil 12.
Are connected at the same position on the inner and outer peripheral sides.
【０００３】[0003]
【発明が解決しようとする課題】ところで、このような
陽極２枚巻コンデンサの場合、通常は重なり合った陽極
箔の内側の容量を引き出すために陽極箔として貫通型ト
ンネルエッチングのものを使用している。この箔は小型
化のため容量を増加させると折曲強度が弱くなることが
知られている。図３に示す電解コンデンサでは、外側陽
極箔１２と内側陽極箔１１との間に電極引出しタブ４１
が介在するため、外側陽極箔１２が電極引出しタブ４１
の部位で急角度で折り曲げられるので、この部位で破断
してしまい、不具合が生じていた。本発明は上述の問題
点に鑑みてなされたものであり、その目的とするところ
は、強度の低い陽極箔の破断を防止できる電解コンデン
サを提供するにある。By the way, in the case of such a two-electrode wound capacitor, a through-type tunnel foil is usually used as the anode foil in order to extract the capacity inside the overlapping anode foil. . It is known that the bending strength of this foil decreases as the capacity increases for miniaturization. In the electrolytic capacitor shown in FIG. 3, an electrode lead-out tab 41 is provided between the outer anode foil 12 and the inner anode foil 11.
, The outer anode foil 12 is connected to the electrode extraction tab 41.
Since it was bent at a steep angle at the portion, the portion was broken at this portion, causing a problem. The present invention has been made in view of the above problems, and an object of the present invention is to provide an electrolytic capacitor capable of preventing the anode foil having low strength from being broken.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するため
本発明では次の構成を具備する。すなわち、１枚の陰極
箔に対して、セパレータを挟んで２枚の相接する陽極箔
を重ねて巻回する電解コンデンサにおいて、両陽極箔の
外周側に各々電極引出しタブが接続され、外側陽極箔に
接続される電極引出しタブが内側陽極箔の電極引出しタ
ブより１周分以上早く巻込まれていると共に、前記外側
陽極箔の巻き終わり端が前記内側陽極箔の電極引出しタ
ブ上に重なっていることを特徴としている。また、１枚
の陰極箔に対して、セパレータを挟んで２枚の相接する
陽極箔を重ねて巻回する電解コンデンサにおいて、両陽
極箔の外周側に各々電極引出しタブが接続され、外側陽
極箔に接続される電極引出しタブが内側陽極箔の電極引
出しタブより１周分以上早く巻込まれていると共に、前
記外側陽極箔が前記内側陽極箔の電極引出しタブに重な
らない位置で終端していることを特徴としている。 To solve the above-mentioned problems, the present invention has the following arrangement. That is, in an electrolytic capacitor in which two adjacent anode foils are stacked and wound on one cathode foil with a separator interposed therebetween, electrode lead-out tabs are respectively connected to the outer peripheral sides of both anode foils, together with the electrode lead-out tabs that are connected to the foil is caught early least one round from electrode lead tab of the inner anode foil, wherein the outer
The winding end of the anode foil is
It is characterized by being overlapped on the bush . Also one
Contact two sheets with a separator between them
In an electrolytic capacitor with an anode foil stacked and wound,
Electrode extraction tabs are connected to the outer periphery of the electrode foil,
The electrode extraction tab connected to the electrode foil is
It is wound one or more turns earlier than the tab
The outer anode foil overlaps the electrode lead-out tab of the inner anode foil.
It is characterized by terminating at a position where it does not.
【０００５】[0005]
【作用】外側陽極箔１２の電極引出しタブ４２を先に巻
込み、１周ずらしてから内側陽極箔１１の電極引出しタ
ブ４１が位置するよう設定され、電極引出しタブ４１及
び４２の外周面と陽極箔が直接接する場所は外側陽極箔
１２の巻終わり端と内側陽極箔１１の電極引出しタブ４
１の部位のみとなるようになされている。外側陽極箔１
２の電極引出しタブ４２に直接重なるのはセパレータ３
１であり、さらに陰極箔２１を介して内側陽極箔１１、
外側陽極箔１２がその外側に巻回されるので、電極引出
しタブ４２が介在することによる陽極箔１１、１２の折
れを解消できる。また外側陽極箔１２はその巻終わり端
が電極引出しタブ４１に重なるのみであるので、この部
位での外側陽極箔１２の折れも防止できる。さらに、外
側陽極箔１２をもう少し短くすれば、電極引出しタブ４
１とも重ならなくできる。The electrode pull-out tab of the outer anode foil 12 is wound first, and the electrode pull-out tab 41 of the inner anode foil 11 is set to be positioned after being shifted by one turn. The places where the foil is in direct contact are the winding end of the outer anode foil 12 and the electrode extraction tab 4 of the inner anode foil 11.
Only one site is provided. Outer anode foil 1
The separator 3 directly overlaps the electrode lead-out tab 42 of FIG.
1, and further through the cathode foil 21, the inner anode foil 11,
Since the outer anode foil 12 is wound around the outside, it is possible to prevent the anode foils 11 and 12 from being broken due to the interposition of the electrode extraction tab 42. Also, since the outer anode foil 12 only has its winding end overlapping the electrode lead-out tab 41, it is possible to prevent the outer anode foil 12 from breaking at this position. Furthermore, if the outer anode foil 12 is made a little shorter, the electrode extraction tab 4
It can be done without overlapping with one.
【０００６】[0006]
【実施例】以下、実施例に基づいて本発明を説明する。
図１に本発明の実施例を示した。従来と同一の部材は同
一符合で示す。本実施例でも、セパレータ３１、内側陽
極箔１１、外側陽極箔１２、セパレータ３１、陰極箔２
１を巻回する。図２は巻回して形成したコンデンサ素子
５１を示す。本実施例では、内側陽極箔１１と外側陽極
箔１２において、両電極引出しタブ４１、４２を箔の外
周側に固定している。そして、外側陽極箔１２の電極引
出しタブ４２を先に巻込み、１周ずらしてから内側陽極
箔１１の電極引出しタブ４１が位置するよう設定してい
る。また、電極引出しタブ４１及び４２の外周面と陽極
箔が直接接する場所は外側陽極箔１２の巻終わり端と内
側陽極箔１１の電極引出しタブ４１の部位のみとなるよ
うになされている。外側陽極箔１２の電極引出しタブ４
２に直接重なるのはセパレータ３１であり、さらに陰極
箔２１を介して内側陽極箔１１、外側陽極箔１２がその
外側に巻回されるので、電極引出しタブ４２が介在する
ことによる陽極箔１１、１２の折れを解消できる。また
外側陽極箔１２はその巻終わり端が電極引出しタブ４１
に重なるのみであるので、この部位での外側陽極箔１２
の折れも防止できる。さらに、外側陽極箔１２をもう少
し短くすれば、電極引出しタブ４１とも重ならなくでき
る。これによって陽極箔が電極引出しタブの端部の位置
で折れてしまうという不具合を解決できる。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments.
FIG. 1 shows an embodiment of the present invention. The same members as those in the related art are denoted by the same reference numerals. Also in this embodiment, the separator 31, the inner anode foil 11, the outer anode foil 12, the separator 31, the cathode foil 2
Wind one. FIG. 2 shows a capacitor element 51 formed by winding. In this embodiment, in the inner anode foil 11 and the outer anode foil 12, both electrode lead tabs 41 and 42 are fixed to the outer peripheral side of the foil. Then, the electrode lead-out tab 42 of the inner anode foil 11 is set after the electrode lead-out tab 42 of the outer anode foil 12 is wound first and shifted by one turn. The outer peripheral surfaces of the electrode lead-out tabs 41 and 42 and the anode foil are in direct contact with each other only at the end of the winding of the outer anode foil 12 and the electrode lead-out tab 41 of the inner anode foil 11. Electrode extraction tab 4 of outer anode foil 12
The separator 31 directly overlaps the inner foil 2, and the inner anode foil 11 and the outer anode foil 12 are wound around the outside via the cathode foil 21, so that the anode foil 11 due to the interposition of the electrode extraction tab 42, 12 can be eliminated. Also
The outer anode foil 12 has an electrode extraction tab 41 at the winding end.
The outer anode foil 12 at this position.
Can be prevented from breaking. Furthermore, if the outer anode foil 12 is made a little shorter, it can be prevented from overlapping the electrode lead-out tab 41. This can solve the problem that the anode foil is broken at the position of the end of the electrode extraction tab.
【０００７】[0007]
【発明の効果】請求項１によれば、外側陽極箔の電極引
出しタブに直接重なるのはセパレータであり、さらに陰
極箔を介して内側陽極箔、外側陽極箔がその外側に巻回
されるので、電極引出しタブが介在することによる陽極
箔の折れを解消でき、また外側陽極箔はその巻終わり端
が電極引出しタブに重なるのみであるので、この部位で
の外側陽極箔の折れも防止できる。 また、請求項２によ
れば、外側陽極箔が前記内側陽極箔の電極引出しタブに
重ならない位置で終端しているので、この部位での外側
陽極箔の折れは完全に防止できる。 According to the first aspect, the electrode pulling of the outer anode foil is performed.
It is the separator that directly overlaps the extension tab,
The inner anode foil and the outer anode foil are wrapped around the outside through the pole foil
The anode
The foil can be broken, and the outer anode foil is
Only overlaps the electrode extraction tab,
Of the outer anode foil can also be prevented. Further, according to claim 2
If so, the outer anode foil becomes an electrode extraction tab of the inner anode foil.
Since it ends at a position where it does not overlap,
The anode foil can be completely prevented from breaking.
【図１】本発明の実施例によるコンデンサの巻回素子の
一部を示す断面図。FIG. 1 is a sectional view showing a part of a winding element of a capacitor according to an embodiment of the present invention.
【図２】本発明の実施例によるコンデンサ素子の斜視
図。FIG. 2 is a perspective view of a capacitor element according to an embodiment of the present invention.
【図３】従来のコンデンサの巻回素子の一部を示す断面
図。FIG. 3 is a cross-sectional view showing a part of a winding element of a conventional capacitor.
【図４】従来の電極引出しタブの取付構造を示す説明図
である。FIG. 4 is an explanatory view showing a conventional electrode pull-out tab mounting structure.
１１ 内側陽極箔 １２ 外側陽極箔 ２１ 陰極箔 ３１ セパレータ ４１，４２ 電極引出しタブ ５１ コンデンサ素子 DESCRIPTION OF SYMBOLS 11 Inside anode foil 12 Outside anode foil 21 Cathode foil 31 Separator 41, 42 Electrode extraction tab 51 Capacitor element
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 昭59−119028（ＪＰ，Ｕ) 実開 昭58−7333（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01G 9/00 - 9/28 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 59-119028 (JP, U) JP-A 58-7333 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H01G 9/00-9/28
Claims (2)
んで２枚の相接する陽極箔を重ねて巻回する電解コンデ
ンサにおいて、 両陽極箔の外周側に各々電極引出しタブが接続され、 外側陽極箔に接続される電極引出しタブが内側陽極箔の
電極引出しタブより１周分以上早く巻込まれていると共
に、前記外側陽極箔の巻き終わり端が前記内側陽極箔の
電極引出しタブ上に重なっていることを特徴とする電解
コンデンサ。1. An electrolytic capacitor in which two adjacent anode foils are superposed and wound on one cathode foil with a separator interposed therebetween, and electrode lead tabs are respectively connected to outer peripheral sides of both anode foils. , the electrode lead-out tabs that are connected to the outer anode foil is caught early least one round from electrode lead tab of the inner anode foil co
The winding end of the outer anode foil is
An electrolytic capacitor characterized by being overlapped on an electrode extraction tab .
んで２枚の相接する陽極箔を重ねて巻回する電解コンデ
ンサにおいて、 両陽極箔の外周側に各々電極引出しタブが接続され、 外側陽極箔に接続される電極引出しタブが内側陽極箔の
電極引出しタブより１周分以上早く巻込まれていると共
に、前記外側陽極箔が 前記内側陽極箔の電極引出しタブ
に重ならない位置で終端していることを特徴とする電解
コンデンサ。2. A separator is sandwiched between one cathode foil.
Electrolytic capacitor that winds two adjacent anode foils together
The electrode lead tabs are connected to the outer peripheral sides of both anode foils, and the electrode lead tabs connected to the outer anode foil are connected to the inner anode foil.
If it is wound more than one turn earlier than the electrode extraction tab,
An electrolytic capacitor , wherein the outer anode foil is terminated at a position where the outer anode foil does not overlap with an electrode lead-out tab of the inner anode foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08172192A JP3291016B2 (en) | 1992-03-03 | 1992-03-03 | Electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08172192A JP3291016B2 (en) | 1992-03-03 | 1992-03-03 | Electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05251283A JPH05251283A (en) | 1993-09-28 |
| JP3291016B2 true JP3291016B2 (en) | 2002-06-10 |
Family
ID=13754283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08172192A Expired - Lifetime JP3291016B2 (en) | 1992-03-03 | 1992-03-03 | Electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3291016B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6249423B1 (en) * | 1998-04-21 | 2001-06-19 | Cardiac Pacemakers, Inc. | Electrolytic capacitor and multi-anodic attachment |
| US6110233A (en) * | 1998-05-11 | 2000-08-29 | Cardiac Pacemakers, Inc. | Wound multi-anode electrolytic capacitor with offset anodes |
| BR112014020551B1 (en) * | 2012-02-21 | 2022-10-11 | Nippon Chemi-Con Corporation | ELECTROLYTIC CAPACITOR |
| DE102018107289A1 (en) * | 2018-03-27 | 2019-10-02 | Tdk Electronics Ag | Capacitor and method for producing a capacitor |
| DE102018107292A1 (en) | 2018-03-27 | 2019-10-02 | Tdk Electronics Ag | Capacitor and method for producing a capacitor |
-
1992
- 1992-03-03 JP JP08172192A patent/JP3291016B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05251283A (en) | 1993-09-28 |
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