JPH03248513A - Flat type aluminum electrolytic capacitor - Google Patents
Flat type aluminum electrolytic capacitorInfo
- Publication number
- JPH03248513A JPH03248513A JP4621690A JP4621690A JPH03248513A JP H03248513 A JPH03248513 A JP H03248513A JP 4621690 A JP4621690 A JP 4621690A JP 4621690 A JP4621690 A JP 4621690A JP H03248513 A JPH03248513 A JP H03248513A
- Authority
- JP
- Japan
- Prior art keywords
- metal case
- aluminum electrolytic
- electrolytic capacitor
- encapsulant
- flat type
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 17
- 229920002050 silicone resin Polymers 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 229910000679 solder Inorganic materials 0.000 abstract description 8
- 238000009413 insulation Methods 0.000 abstract description 4
- 238000005476 soldering Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 2
- 239000008393 encapsulating agent Substances 0.000 abstract 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 3
- 239000011347 resin Substances 0.000 abstract 3
- 229920005989 resin Polymers 0.000 abstract 3
- 229910052710 silicon Inorganic materials 0.000 abstract 3
- 239000010703 silicon Substances 0.000 abstract 3
- 238000005336 cracking Methods 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、偏平形をなす有底筒状の金属ケース内にコン
デンサ素子を収納した偏平形アルミ電解コンデンサに関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a flat aluminum electrolytic capacitor in which a capacitor element is housed in a flat bottomed cylindrical metal case.
従来の技術
従来のこの種の偏平形アルミ電解コンデンサにおいては
、金属ケースを被覆する外装材として、主に塩化ビニー
ル製の熱収縮スリーブを用いていた。BACKGROUND OF THE INVENTION Conventional flat aluminum electrolytic capacitors of this type have mainly used a heat-shrink sleeve made of vinyl chloride as an exterior material for covering the metal case.
発明が解決しようとする課題
しかしながら、上記従来の外装材は、高温における耐熱
性が低いため、例えば、偏平形アルミ電解コンデンサの
リード線を面実装可能な形状に後加工し、半田リフロー
等により、この偏平形アルミ電解コンデンサを面実装し
た場合には、半田リフロー時の熱によって前記外装材に
二次収縮や亀裂が発生するという問題点を有していた。Problems to be Solved by the Invention However, since the above-mentioned conventional exterior materials have low heat resistance at high temperatures, for example, the lead wires of flat aluminum electrolytic capacitors are post-processed into a shape that can be surface mounted, and solder reflow etc. When this flat aluminum electrolytic capacitor is surface mounted, there is a problem in that secondary shrinkage and cracks occur in the exterior material due to heat during solder reflow.
本発明はこのような問題点を解決するもので、半田リフ
ロー等による面実装を実施したとしても、外装材に二次
収縮や亀裂が発生することのない偏平形アルミ電解コン
デンサを提供することを目的とするものである。The present invention solves these problems, and aims to provide a flat aluminum electrolytic capacitor that does not cause secondary shrinkage or cracks in the exterior material even when surface mounting is performed using solder reflow or the like. This is the purpose.
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偏平形アルミ電解コ
ンデンサは、コンデンサ素子を収納する偏平形をなす有
底筒状の金属ケースと、この金属ケースの開放端を封止
する弾性封口体とを有し、前記金属ケースを、シリコー
ン樹脂を用いた外装材で被覆したものである。Means for Solving the Problems In order to achieve the above object, the flat aluminum electrolytic capacitor of the present invention includes a flat bottomed cylindrical metal case that houses a capacitor element, and an open end of this metal case that is sealed. The metal case is covered with an exterior material made of silicone resin.
作用
上記構成によれば、シリコーン樹脂を用いた外装材で金
属ケースを被覆しているため、この偏平形アルミ電解コ
ンデンサを半田リフロー等により半田付けして面実装し
た場合においても、前記外装材の高温における耐熱性が
充分に高（、かつ絶縁性も良好なため、この外装材に二
次収縮や亀裂が発生するということはなくなるものであ
る。またこの偏平形アルミ電解コンデンサには、通常の
使用中、リップル電流が流れて発熱するが、外装材を構
成するシリコーン樹脂は熱伝導性も優れているため、放
熱効果を向上させることができ、これにより、発熱温度
の低減もはかれるものである。Effects According to the above configuration, since the metal case is covered with an exterior material made of silicone resin, even when this flat aluminum electrolytic capacitor is surface mounted by soldering by solder reflow etc., the exterior material is Since the heat resistance at high temperatures is sufficiently high (and the insulation properties are also good, secondary shrinkage and cracks will not occur in this exterior material).In addition, this flat aluminum electrolytic capacitor has a During use, ripple current flows and heat is generated, but the silicone resin that makes up the exterior material has excellent thermal conductivity, which improves the heat dissipation effect, thereby reducing the temperature at which heat is generated. .
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。図において、１は偏平形をなす有底筒状のアルミニ
ウムよりなる金属ケースで、この金属ケース１は内部に
陽極箔および陰極箔をセパレータとともに巻回し、かつ
電解液を含浸させてなるコンデンサ素子（図示せず）を
収納し、かつこのコンデンサ素子より導出された陽極リ
ード端子２．陰極リード端子２ａは金属ケース１の開放
端に配設された弾性封口体３を通して外部へ引き出され
、そして前記金属ケース１の開放端の先端部をカーリン
グ加工することにより、気密封止を行っている。さらに
前記陽極リード端子２．陰極リード端子２ａは面実装が
可能となるようにＬ字状に折り曲げ加工している。さら
にまた前記金属ケース１はシリコーン樹脂をベースとし
た外装材４で被覆されているもので、このような外装材
４は高温における耐熱性が充分に高（、かつ絶縁性も良
好であるため、半田リフロー等により半田付けして実装
した場合においても、外装材４に二次収縮や亀裂が発生
するということはなくなるものである。Embodiment Hereinafter, one embodiment of the present invention will be described based on the accompanying drawings. In the figure, reference numeral 1 denotes a flat bottomed cylindrical metal case made of aluminum. This metal case 1 has an anode foil and a cathode foil wound together with a separator inside, and a capacitor element ( (not shown) and an anode lead terminal 2. which is led out from this capacitor element. The cathode lead terminal 2a is drawn out through an elastic sealing member 3 disposed at the open end of the metal case 1, and is hermetically sealed by curling the tip of the open end of the metal case 1. There is. Furthermore, the anode lead terminal 2. The cathode lead terminal 2a is bent into an L-shape to enable surface mounting. Furthermore, the metal case 1 is covered with an exterior material 4 based on silicone resin, and such exterior material 4 has sufficiently high heat resistance at high temperatures (and has good insulation properties). Even when soldered and mounted using solder reflow or the like, secondary shrinkage and cracks will not occur in the exterior material 4.
発明の効果
上記実施例の説明から明らかなように本発明の偏平形ア
ルミ電解コンデンサは、シリコーン樹脂を用いた外装材
で金属ケースを被覆しているため、この偏平形アルミ電
解コンデンサを半田リフロー等により半田付けして面実
装した場合においても、前記外装材の高温における耐熱
耐が充分に高く、かつ絶縁性も良好であるため、この外
装材に二次収縮や亀裂が発生するということはなくなる
もので、これにより、半田リフロー等によるプリント基
板への面実装が実現可能となるものである。Effects of the Invention As is clear from the description of the above embodiments, the flat aluminum electrolytic capacitor of the present invention has a metal case covered with an exterior material made of silicone resin. Even when surface-mounted by soldering, the exterior material has sufficiently high heat resistance at high temperatures and has good insulation properties, so secondary shrinkage and cracks will not occur in the exterior material. This makes it possible to implement surface mounting on a printed circuit board using solder reflow or the like.
図は本発明の一実施例を示す偏平形アルミ電解コンデン
サの斜視図である。
■・・・・・・金属ケース、３・・・・・・弾性封口体
、４・・・・・・外装材。The figure is a perspective view of a flat aluminum electrolytic capacitor showing one embodiment of the present invention. ■...Metal case, 3...Elastic sealing body, 4...Exterior material.
Claims (1)
つ電解液を含浸させてなるコンデンサ素子を収納する偏
平形をなす有底筒状の金属ケースと、この金属ケースの
開放端を封止する弾性封口体とを有し、前記金属ケース
を、シリコーン樹脂を用いた外装材で被覆したことを特
徴とする偏平形アルミ電解コンデンサ。A flat bottomed cylindrical metal case that houses a capacitor element made by winding an anode foil and a cathode foil together with a separator and impregnating it with an electrolyte, and an elastic sealing body that seals the open end of the metal case. A flat aluminum electrolytic capacitor, characterized in that the metal case is covered with an exterior material made of silicone resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4621690A JPH03248513A (en) | 1990-02-27 | 1990-02-27 | Flat type aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4621690A JPH03248513A (en) | 1990-02-27 | 1990-02-27 | Flat type aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03248513A true JPH03248513A (en) | 1991-11-06 |
Family
ID=12740910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4621690A Pending JPH03248513A (en) | 1990-02-27 | 1990-02-27 | Flat type aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03248513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012234934A (en) * | 2011-04-28 | 2012-11-29 | Toshiba Corp | Television device and electronic apparatus |
-
1990
- 1990-02-27 JP JP4621690A patent/JPH03248513A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012234934A (en) * | 2011-04-28 | 2012-11-29 | Toshiba Corp | Television device and electronic apparatus |
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