JPH03295216A - Chip type aluminum electrolytic capacitor - Google Patents
Chip type aluminum electrolytic capacitorInfo
- Publication number
- JPH03295216A JPH03295216A JP9717290A JP9717290A JPH03295216A JP H03295216 A JPH03295216 A JP H03295216A JP 9717290 A JP9717290 A JP 9717290A JP 9717290 A JP9717290 A JP 9717290A JP H03295216 A JPH03295216 A JP H03295216A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic capacitor
- metal case
- aluminum electrolytic
- pair
- capacitor
- 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 41
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011888 foil Substances 0.000 claims abstract description 9
- 239000003792 electrolyte Substances 0.000 claims abstract description 4
- 229920006122 polyamide resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000003566 sealing material Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 238000005476 soldering Methods 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
本発明はチップ形アルミ電解コンデンサに関するもので
、さらに詳しくは金属ケースの開放端における封口部の
チップ構成に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a chip-type aluminum electrolytic capacitor, and more particularly to a chip configuration of a sealed portion at an open end of a metal case.
従来の技術
近年、各種電子機器の高密度実装化の要請の中で面実装
部品（リードレヌタイプ）が産業界で広く多用されてい
る。アルミ電解コンデンサの場合もこうした流れの中で
、第３図に示すようにコンデンサ素子１を有底円筒状の
金属ケース２内に収納し、かつこの金属ケー７２の開放
端をゴム状弾性体３ａと非ゴム状弾性体３ｂよシなる封
口体３を用いて封口することによシアルミ電解コンデン
サを構成し、そして前記コンデンサ素子１から導呂され
、かつ封口体３を貫通して外部に引き出された一対のリ
ード線４と、前記金属ケース２のカーリング封口された
開放端面に当接するように配設された絶縁板６とを備え
、かつ前記一対のリード線４の先端部４＆を折曲して絶
縁板５の外表面に設けた凹部６ａ内に収納するように構
成した縦型タイプのチップ形アルミ電解コンデンサが提
案されている。BACKGROUND OF THE INVENTION In recent years, surface-mounted components (Lead Lens type) have been widely used in the industrial world due to the demand for high-density packaging of various electronic devices. In the case of aluminum electrolytic capacitors, the capacitor element 1 is housed in a cylindrical metal case 2 with a bottom, as shown in FIG. A sialium electrolytic capacitor is constructed by sealing with a sealing body 3 made of a non-rubber-like elastic body 3b, and the capacitor is exposed from the capacitor element 1 and is drawn out through the sealing body 3 to the outside. and an insulating plate 6 disposed so as to come into contact with the curled and sealed open end surface of the metal case 2, and the tips 4& of the pair of lead wires 4 are bent. A vertical chip type aluminum electrolytic capacitor configured to be housed in a recess 6a provided on the outer surface of an insulating plate 5 has been proposed.
上記した縦型タイプのチップ形アルミ！解コンデンサに
おける製造法は、ディスクリートタイプのアルミ電解コ
ンデンサを一旦完成させた後、絶縁板６に一対のリード
線４を貫通させ、そしてこのリード線４の先端部４ａを
板状に加工し、かつ折シ曲げることによシ、絶縁板５の
外表面に設けた凹部６ａ内に収納するようにしていた。The above-mentioned vertical type chip-shaped aluminum! The manufacturing method for the electrolytic capacitor is as follows: Once a discrete type aluminum electrolytic capacitor is completed, a pair of lead wires 4 are passed through an insulating plate 6, and the tips 4a of the lead wires 4 are processed into a plate shape. By bending it, it was stored in a recess 6a provided on the outer surface of the insulating plate 5.
発明が解決しようとする課題
しかしながら、上記した縦型タイプのチップ形アルミ電
解コンデンサの場合は、前述したようにアルミ電解コン
デンサを一旦完成させた後、絶縁板６を金属ケース２の
カーリング封口された開放端面に当接するように配設し
、そして一対のリード線４の先端部４＆を板状に加工し
、さらにこの板状に加工された一対のリード線４の先端
部４１Ｌが絶縁板５の外表面に設けた凹部６１Ｌ内に収
まるように、一対のリード線４の先端部４＆を折り曲げ
るという作業を必要とするため、その製造法は非常に煩
雑であるとともに組立工数も多くなってコスト的にも高
くなシ、また全長寸法的に見た場合でも、デイヌクリー
トタイプに絶縁板５の厚みが付加される等の問題点を有
していた。Problems to be Solved by the Invention However, in the case of the above-mentioned vertical type chip-type aluminum electrolytic capacitor, after the aluminum electrolytic capacitor is once completed as described above, the insulating plate 6 is curled and sealed in the metal case 2. The tip portions 4& of the pair of lead wires 4 are arranged so as to abut on the open end surface, and the tip portions 4& of the pair of lead wires 4 are processed into a plate shape. Since it is necessary to bend the tips 4& of the pair of lead wires 4 so that they fit into the recess 61L provided on the outer surface, the manufacturing method is very complicated and requires a large number of assembly steps, resulting in high costs. It is also expensive, and even when viewed from the overall length dimension, there are problems such as the addition of the thickness of the insulating plate 5 to the Deinucrete type.
本発明はこのような問題点を解決するためになされたも
ので、製造法の簡略化が図れるとともに、より低背化設
計のチップ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 has been made to solve these problems, and aims to provide a chip-type aluminum electrolytic capacitor that can be manufactured with a simplified manufacturing method and has a lower profile design.
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チップ形アルミ電解
コンデンサは、［種苗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を有底円筒状
の金属ケースに内蔵し、かつこの有底円筒状の金属ケー
スは外面側に耐熱特性と絶縁特性を有する樹脂層を設け
、この金属ケースの開放端を封口体を介してカーリング
封口するとともに、このカーリング封口端面部に一対の
凹部を設け、かつ前記コンデンサ素子よシ導出されると
ともに、封口体の貫通孔を貫通したリード線の先端部を
折曲して前記凹部内に収納したものである。Means for Solving the Problems In order to achieve the above object, the chip-type aluminum electrolytic capacitor of the present invention has a capacitor element formed by winding a seedling with a separator and impregnating it with an electrolyte in a bottomed cylindrical metal case. This cylindrical metal case with a bottom is provided with a resin layer having heat-resistant and insulating properties on the outer surface, and the open end of this metal case is curled and sealed via a sealing body, and the curled sealed end surface is sealed. A pair of recesses are provided in the recess, and the tip of a lead wire that is led out of the capacitor element and passed through the through hole of the sealing body is bent and housed in the recess.
作用
上記構成のチップ形アルミ電解コンデンサによれば、デ
ィスクリートタイプのアルミ電解コンデンサをカーリン
グ封口する場合、このカーリング封口端面部に一対の凹
部を設け、従来のような絶縁板を介さずにリード線の先
端部を折曲して前記凹部内に収納した構成としているた
め、その製造法は従来のタイプに比べて簡略化され、か
つ組立工数の低減も図れ、しかも従来のような絶縁板を
介していないため、この絶縁板の厚み分は確実に低背化
が可能となる。これにより、コスト的にも。Function According to the chip type aluminum electrolytic capacitor having the above structure, when curling a discrete type aluminum electrolytic capacitor, a pair of recesses are provided in the end face of the curling sealing, and the lead wires can be sealed without using an insulating plate as in the conventional case. Since the tip is bent and stored in the recess, the manufacturing method is simpler than that of conventional types, and the number of assembly steps can be reduced.Moreover, there is no need to use the conventional insulating plate. Therefore, the thickness of this insulating plate can be reduced reliably. This also reduces costs.
かつ全長寸法的にも非常に有利なチップ形アルミ電解コ
ンデンサを提供することができるものである。Moreover, it is possible to provide a chip-type aluminum electrolytic capacitor which is very advantageous in terms of overall length.
実施例
以下１本発明の一実施例を添付図面にもとづいて説明す
る。第１図および第２図において、１つはアルミニウム
板１１＆の外面側に融点が２６６”ｃＴ：ある６６ナイ
ロンからなシ、かつ淳みが４０μｍのフィルム状の複合
ポリアミド榛脂層１１ｂを溶融ラミネートした積層板を
絞シ加工して成形した有底円筒状の金属ケースで、この
金属ケース１１にはコンデンサ素子１２を内蔵しており
、そしてこのフン、デンサ累子１２にはアルミニウム箔
ヲ粗面化し、さらに陽極酸化により誘電体酸化皮膜を形
成した陽極箔と、アルミニウム箔を粗面化して形成した
陰極箔とをセパレータを介して巻回し、かつ駆動用電解
ｇを含浸させることにより構成している。Embodiment One embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, one is a film-like composite polyamide resin layer 11b made of 66 nylon with a melting point of 266" cT and a thickness of 40 μm on the outer surface of an aluminum plate 11. The metal case 11 has a built-in capacitor element 12, and the cap and capacitor element 12 have a rough surface of aluminum foil. It is constructed by winding an anode foil with a dielectric oxide film formed by anodic oxidation and a cathode foil formed by roughening an aluminum foil through a separator, and impregnating it with driving electrolyte G. There is.
また前記金属ケース１１の開放端にはゴム状の弾性体に
よシ構成された封口体１３を配設するとともに、金属ケ
ース１１の開放端をカーリング封口し、さらに前記コン
デンサ素子１２に接続された陽極リード線１４と陰極リ
ード線１６を封口体１３の貫通孔１３ａ、１３ｂを貫通
させて同一端面より外部に引き出し、そしてまた前記陽
極リード線１４と陰極リード線１５とを結ぶ線上のカー
リング封口端面部には一対の凹部１６を設けている。そ
してこの一対の凹部１６には、前記別口体１３の貫通孔
を貫通した陽極、陰極リード線１４゜１５の先端部１４
１．１５＆を折曲して収納している。Further, a sealing body 13 made of a rubber-like elastic body is disposed at the open end of the metal case 11, and the open end of the metal case 11 is sealed by curling, and further connected to the capacitor element 12. The anode lead wire 14 and the cathode lead wire 16 are passed through the through holes 13a and 13b of the sealing body 13 and pulled out from the same end surface, and the curled sealing end surface is formed on the line connecting the anode lead wire 14 and the cathode lead wire 15. A pair of recesses 16 are provided in the portion. In the pair of recesses 16, the tips 14 of the anode and cathode lead wires 14 and 15, which have passed through the through hole of the separate opening body 13, are inserted.
1.15& is folded and stored.
また前記カーリング封口端面部に設けた一対の凹部１６
は、耐熱特性と絶縁特性を有する複合ポリアミド樹脂層
１１ｂで被覆されているもので、この複合ポリアミド樹
脂層１１ｂはアルミニウム板１１１Ｌへの積層時のフィ
ルム厚みが４０μｍであシ、かつ一対の凹部１６の加工
後のフィルム厚みは１６μｍとなるもので、この複合ポ
リアミド樹脂層１１ｂの存在により、リフローソルダリ
ング（コンデンサの表面温度は２４０℃以下）後におい
ても、前記一対の凹部１６のｔＸ絶縁性は確保されるこ
とになシ、その結果、折曲された陽極。Further, a pair of recesses 16 provided in the curling sealing end surface portion
is coated with a composite polyamide resin layer 11b having heat resistance and insulation properties, and this composite polyamide resin layer 11b has a film thickness of 40 μm when laminated to the aluminum plate 111L, and has a pair of recesses 16. The film thickness after processing is 16 μm. Due to the presence of this composite polyamide resin layer 11b, the tX insulation of the pair of recesses 16 is maintained even after reflow soldering (the surface temperature of the capacitor is 240° C. or less). The anode must not be secured, resulting in a bent anode.
陰極リード線１４．１５の先端部１４！Ｌ、１５！Ｌと
金属ケース１１とは確実な絶縁が行われるものである。The tip 14 of the cathode lead wire 14.15! L, 15! L and the metal case 11 are designed to provide reliable insulation.
この場合、陽極、陰極リード線１４゜１６の先端部１４
１Ｌ、１５ａは扁平加工を施して扁平状に構成したもの
であっても、あるいは丸棒のリード線のままの状態であ
っても良いもので。In this case, the tips 14 of the anode and cathode lead wires 14°16
1L and 15a may be formed into a flat shape by being flattened, or may be a round bar lead wire as it is.
扁平状に構成すれば折り曲げも容易に行えるものである
。If it is configured in a flat shape, it can be easily bent.
なお、上記一実施例においては、封口体１３として、ゴ
ム状の弾性体によ多構成されたものを使用しているが、
非ゴム状弾性体とゴム状弾性体とで構成された封口体を
使用してもよく、この封口体を使用すれば、長寿命タイ
プで同様の作用効果を有するチップ形アルミ電解コンデ
ンサを容易に得ることができるものである。In the above embodiment, the sealing body 13 is made of a rubber-like elastic body.
A sealing body composed of a non-rubber-like elastic body and a rubber-like elastic body may be used. If this sealing body is used, a chip-type aluminum electrolytic capacitor with a long life type and similar effects can be easily manufactured. It is something that can be obtained.
発明の効果
上記実施例の説明から明らかなように１本発明のチップ
形アルミ電解コンデンサは、カーリング封口端面部に一
対の凹部を設け、従来のような絶縁板を介さずにリード
線の先端部を折曲して前記凹部内に収納した構成として
いるため、その製造法は従来のタイプに比べて簡略化さ
れ、かつ組立工数の低減も図れ、しかも従来のような絶
縁板を介していないため、この絶縁板の厚み分は確実に
低背化が可能となる。これにより、コヌト的にも、かつ
全長寸法的にも非常に有利なチップ形アルミ電解コンデ
ンサを提供することができるものである。Effects of the Invention As is clear from the description of the embodiments above, the chip-type aluminum electrolytic capacitor of the present invention has a pair of recesses in the end face of the curling seal, so that the tip of the lead wire can be easily connected to the tip of the lead wire without using an insulating plate as in the conventional case. Since the structure is such that it is bent and stored in the recess, the manufacturing method is simpler than that of conventional types, and the number of assembly steps can be reduced.Moreover, it does not require an insulating plate as in conventional types. , it is possible to reliably reduce the height of this insulating plate by the thickness thereof. This makes it possible to provide a chip-type aluminum electrolytic capacitor that is very advantageous both in terms of design and overall length.
第１図は本発明の一実施例を示すチップ形アルミ電解コ
ンデンサの断面図、第２図は同コンデンサの斜視図、第
３図は従来の縦型タイプのチップ形アルミ電解コンデン
サの断面図である。
１１・・・・・金属ケース、１１ｂ・川・・樹脂層＋１
２・・・・・コンデンサ素子、１３・・・山側臼体、１
４−・・・・陽極リード線、１４！Ｌ・・・・・・陽極
リード線の先端部、１６・・・・・陰極リード線、１６
ａ・・・・・・陰極リード線の先端部、１６・・・・・
・一対の凹部。Fig. 1 is a cross-sectional view of a chip-type aluminum electrolytic capacitor showing an embodiment of the present invention, Fig. 2 is a perspective view of the capacitor, and Fig. 3 is a cross-sectional view of a conventional vertical type chip-type aluminum electrolytic capacitor. be. 11...Metal case, 11b...Resin layer +1
2...Capacitor element, 13...Mountain side mortar body, 1
4-... Anode lead wire, 14! L...Tip of anode lead wire, 16...Cathode lead wire, 16
a...Tip of cathode lead wire, 16...
- A pair of recesses.
Claims (4)
を含浸させてなるコンデンサ素子を有底円筒状の金属ケ
ースに内蔵し、かつこの有底円筒状の金属ケースは外面
側に耐熱特性と絶縁特性を有する樹脂層を設け、この金
属ケースの開放端を封口体を介してカーリング封口する
とともに、このカーリング封口端面部に一対の凹部を設
け、かつ前記コンデンサ素子より導出されるとともに、
封口体の貫通孔を貫通したリード線の先端部を折曲して
前記凹部内に収納したことを特徴とするチップ形アルミ
電解コンデンサ。(1) A capacitor element made by winding an electrode foil together with a separator and impregnating it with an electrolyte is housed in a cylindrical metal case with a bottom, and this cylindrical metal case has heat resistance and insulation on its outer surface. A resin layer having a characteristic is provided, the open end of the metal case is curled and sealed via a sealing body, and a pair of recesses are provided in the end face of the curled seal, and the resin layer is led out from the capacitor element.
1. A chip-type aluminum electrolytic capacitor, characterized in that a tip of a lead wire passing through a through-hole of a sealing body is bent and housed in the recess.
が２４０℃以上のポリアミド樹脂層からなる請求項１記
載のチップ形アルミ電解コンデンサ。(2) The chip-type aluminum electrolytic capacitor according to claim 1, wherein the resin layer provided on the outer surface of the metal case is a polyamide resin layer having a melting point of 240° C. or higher.
構成した請求項１または２記載のチップ形アルミ電解コ
ンデンサ。(3) The chip-type aluminum electrolytic capacitor according to claim 1 or 2, wherein the sealing body is composed of a non-rubber-like elastic body and a rubber-like elastic body.
る一対のリード線の先端部を扁平状に構成した請求項１
〜３のいずれかに記載のチップ形アルミ電解コンデンサ
。(4) Claim 1, wherein the tip portions of the pair of lead wires housed in the recess provided in the end surface of the curling seal are formed into a flat shape.
The chip-type aluminum electrolytic capacitor according to any one of 3 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9717290A JP2876704B2 (en) | 1990-04-12 | 1990-04-12 | Chip type aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9717290A JP2876704B2 (en) | 1990-04-12 | 1990-04-12 | Chip type aluminum electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03295216A true JPH03295216A (en) | 1991-12-26 |
| JP2876704B2 JP2876704B2 (en) | 1999-03-31 |
Family
ID=14185168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9717290A Expired - Fee Related JP2876704B2 (en) | 1990-04-12 | 1990-04-12 | Chip type aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2876704B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7719822B2 (en) * | 2006-12-05 | 2010-05-18 | Sanyo Electric Co., Ltd. | Electrolytic capacitor |
-
1990
- 1990-04-12 JP JP9717290A patent/JP2876704B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7719822B2 (en) * | 2006-12-05 | 2010-05-18 | Sanyo Electric Co., Ltd. | Electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2876704B2 (en) | 1999-03-31 |
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