JPH04114418A - Electrolytic capacitor - Google Patents
Electrolytic capacitorInfo
- Publication number
- JPH04114418A JPH04114418A JP23516590A JP23516590A JPH04114418A JP H04114418 A JPH04114418 A JP H04114418A JP 23516590 A JP23516590 A JP 23516590A JP 23516590 A JP23516590 A JP 23516590A JP H04114418 A JPH04114418 A JP H04114418A
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- electrolytic capacitor
- capacitor
- film layer
- present
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 31
- 238000005260 corrosion Methods 0.000 claims abstract description 19
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 239000002736 nonionic surfactant Substances 0.000 claims description 4
- 150000008282 halocarbons Chemical class 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- -1 polyoxyethylene Polymers 0.000 abstract description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 abstract description 2
- 150000003983 crown ethers Chemical class 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- UOCLXMDMGBRAIB-UHFFFAOYSA-N 1,1,1-trichloroethane Chemical compound CC(Cl)(Cl)Cl UOCLXMDMGBRAIB-UHFFFAOYSA-N 0.000 abstract 1
- 150000003973 alkyl amines Chemical class 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電解コンデンサに関するものて、該Ｊンデンサ
をハロゲン化炭化水素で洗浄し、た場合にコンデンサ内
部にハロゲン化炭化水素が透過し、で生ずるコンデンサ
素子の腐食を防止し１、寿命特性を向上されるものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electrolytic capacitor, and when the J capacitor is cleaned with a halogenated hydrocarbon, the halogenated hydrocarbon permeates into the capacitor and the resulting capacitor is This prevents corrosion of the element and improves life characteristics.
従来の技術
従来、アルミニウム電解コンデンサの引出しタブは、所
定の電圧によって化成されたものを電極箔へ加締して接
続し封口部のリベット部へ接続されている。BACKGROUND OF THE INVENTION Conventionally, the draw-out tab of an aluminum electrolytic capacitor has been formed by applying a predetermined voltage and connected to an electrode foil by caulking, and then connected to a rivet part of a sealing part.
発明が解決しようとする課題
アルミニウム電解コンデンサは、印刷基板へ取りつけす
る時に用いるハンダフラックスの除去工程で、ハロゲン
化炭化水素への浸漬あるいは蒸気浴中にさらすことなど
が行われている。Problems to be Solved by the Invention Aluminum electrolytic capacitors are immersed in halogenated hydrocarbons or exposed to a steam bath in the solder flux removal process used when attaching them to printed circuit boards.
しかし、この洗浄工程によって、ハロゲン化炭化水素が
電解コンデンサの封印用ゴム栓を透過してコンデンサ素
子内に侵入し、分解して塩素イオンを生成するため、こ
の塩素イオンによってコンデンサ素子中の引出しタブを
腐食させることがあった。However, during this cleaning process, halogenated hydrocarbons penetrate the rubber sealing plug of the electrolytic capacitor and enter the capacitor element, decompose and produce chlorine ions, which cause the drawer tabs in the capacitor element to be removed. It could cause corrosion.
課題を解決するための手段
本発明は、上述の課題を解決スるため、非イオン界面活
性剤からなる耐腐食膜層を引出しタブの表面に形成した
ことを特徴とする電解コンデンサである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides an electrolytic capacitor characterized in that a corrosion-resistant film layer made of a nonionic surfactant is formed on the surface of the drawer tab.
なお、非イオン界面活性剤などの耐腐食性を有する物質
による膜の形成方法は、単分子層以上に膜が形成されれ
ば、塗付、水面展開法など、いかなる方法を用いてもよ
い。Note that as a method for forming a film using a substance having corrosion resistance such as a nonionic surfactant, any method such as painting or water surface spreading method may be used as long as the film is formed in a monomolecular layer or more.
作用
本発明に係る引出しタブを用いたアルミニウム電解コン
デンサは、洗浄工程によって、ハロゲン化炭化水素がゴ
ム栓を透過してコンデンサ素子内に侵入し、分解して塩
素イオンを生成した場合においても、引出しタブ上に形
成された耐腐食膜層の防食作用によって腐食を抑制する
。Function The aluminum electrolytic capacitor using the drawer tab according to the present invention can be pulled out even if halogenated hydrocarbons penetrate the rubber plug and enter the capacitor element during the cleaning process and decompose to produce chlorine ions. Corrosion is suppressed by the anti-corrosion action of the anti-corrosion film layer formed on the tab.
実施例
第１図および第２図は、本発明に係る電解コンデンサの
実施例で、１はコンデンサ素子７から導出したアルミニ
ウムからなる引出しタブ、２は非イオン界面活性剤から
なる耐腐食膜層、３は端子、４は絶縁板とゴム板とを貼
り合わせた端子封口板、５はアルミニウムからなるリベ
ット、６はアルミニウムからなるワッシャ、８はケース
である。Embodiment FIGS. 1 and 2 show an embodiment of an electrolytic capacitor according to the present invention, in which 1 is a drawer tab made of aluminum derived from a capacitor element 7, 2 is a corrosion-resistant film layer made of a nonionic surfactant, 3 is a terminal, 4 is a terminal sealing plate made by bonding an insulating plate and a rubber plate, 5 is a rivet made of aluminum, 6 is a washer made of aluminum, and 8 is a case.
以下、本発明の実施例について説明する。Examples of the present invention will be described below.
第１表は、定格２００ＷＶ、４７０μＦ（７）従来のア
ルミニウム電解コンデンサと、上述の耐腐食膜層の下記
の構造式１に示すポリオキシエチレンフルキル７ミンを
使用した本発明例１の電解コンデンサ、および耐腐食膜
層の物質として構造式２に示すクラウンエーテルを使用
した本発明例２の電解コンデンサを各々５０個を１．１
．１−トリクロロエタン中で５分間超音波洗浄した後、
１０５℃中で定格電圧を１０００時間印加した後の腐食
発生個数を示す。Table 1 shows a conventional aluminum electrolytic capacitor with a rating of 200 WV and 470 μF (7), and an electrolytic capacitor of Example 1 of the present invention using polyoxyethylene furkyl 7-mine shown in the structural formula 1 below for the above-mentioned corrosion-resistant film layer. , and 50 electrolytic capacitors of Example 2 of the present invention using the crown ether shown in Structural Formula 2 as the material of the corrosion-resistant film layer.
．． After ultrasonic cleaning in 1-trichloroethane for 5 minutes,
The number of corrosion generated after applying the rated voltage for 1000 hours at 105°C is shown.
第１表
ＣＨ２／
＼ＣＨｚ
（ＣＩＯＨ２Ｏ０Ｓ）
第１表から明らかなように、本発明に係る電解コンデン
サは、従来のものに比べ、ハロゲン化炭化水素による洗
浄の際の腐食を著しく抑制することが実証された。Table 1 CH2/\CHHz (CIOH2O0S) As is clear from Table 1, it has been demonstrated that the electrolytic capacitor according to the present invention significantly suppresses corrosion during cleaning with halogenated hydrocarbons compared to conventional capacitors. It was done.
なお、上述の実施例においては、電解コンデンサの封口
部は端子封口板を用いたものについて説明したが、ゴム
栓を用いかつリード線とアルミニウムを溶接したタブを
使用した０４形、０２形電解コンデンサについても適応
できることはいうまでもない。In the above embodiments, the sealing part of the electrolytic capacitor uses a terminal sealing plate. Needless to say, it can also be applied to
発明の効果
以上の結果から明らかなように、本発明に係る電解コン
デンサは、ハロゲン化炭化水素が電解コンデンサの封口
部を透過してコンデンサ素子内に侵入し、分解して塩素
イオンを生成した場合においても、引出しタブ上に形成
された上述の耐腐食膜層の防食作用によって腐食を著し
く抑制し、工業的ならびに実用的価値の大なるものであ
る。Effects of the Invention As is clear from the above results, the electrolytic capacitor according to the present invention is effective when halogenated hydrocarbons penetrate the sealing part of the electrolytic capacitor, enter the capacitor element, decompose, and generate chlorine ions. Also, corrosion is significantly suppressed by the anti-corrosion action of the above-mentioned corrosion-resistant film layer formed on the drawer tab, and it is of great industrial and practical value.
第１図は、本発明の一実施例の電解コンデンサ要部の断
面図、第２図は本発明の電解コンデンサの一実施例の断
面図である。
１： 引出しタブ
２： 耐腐食膜層FIG. 1 is a sectional view of a main part of an electrolytic capacitor according to an embodiment of the present invention, and FIG. 2 is a sectional view of an embodiment of an electrolytic capacitor according to the present invention. 1: Drawer tab 2: Corrosion-resistant film layer
Claims (1)
表面に形成したことを特徴とする電解コンデンサ。An electrolytic capacitor characterized in that a corrosion-resistant film layer made of a nonionic surfactant is formed on the surface of the drawer tab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23516590A JP2945733B2 (en) | 1990-09-04 | 1990-09-04 | Electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23516590A JP2945733B2 (en) | 1990-09-04 | 1990-09-04 | Electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04114418A true JPH04114418A (en) | 1992-04-15 |
| JP2945733B2 JP2945733B2 (en) | 1999-09-06 |
Family
ID=16982022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23516590A Expired - Lifetime JP2945733B2 (en) | 1990-09-04 | 1990-09-04 | Electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2945733B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013058507A (en) * | 2011-09-07 | 2013-03-28 | Hitachi Aic Inc | Aluminum electrolytic capacitor |
| CN108074747A (en) * | 2016-11-11 | 2018-05-25 | 东莞市东阳光电容器有限公司 | A kind of long life aluminum electrolytic capacitor |
-
1990
- 1990-09-04 JP JP23516590A patent/JP2945733B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013058507A (en) * | 2011-09-07 | 2013-03-28 | Hitachi Aic Inc | Aluminum electrolytic capacitor |
| CN108074747A (en) * | 2016-11-11 | 2018-05-25 | 东莞市东阳光电容器有限公司 | A kind of long life aluminum electrolytic capacitor |
| CN108074747B (en) * | 2016-11-11 | 2021-03-26 | 东莞市东阳光电容器有限公司 | Long-life aluminum electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2945733B2 (en) | 1999-09-06 |
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