JPH0521275A - Method of manufacturing electrolytic capacitor - Google Patents
Method of manufacturing electrolytic capacitorInfo
- Publication number
- JPH0521275A JPH0521275A JP5621891A JP5621891A JPH0521275A JP H0521275 A JPH0521275 A JP H0521275A JP 5621891 A JP5621891 A JP 5621891A JP 5621891 A JP5621891 A JP 5621891A JP H0521275 A JPH0521275 A JP H0521275A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic capacitor
- metal case
- plastic resin
- case
- transparent plastic
- 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
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、コンデンサの識別が容
易で、絶縁性に優れた電解コンデンサの製造方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an electrolytic capacitor which is easy to identify and has excellent insulation.
【０００２】[0002]
【従来の技術】従来の電解コンデンサは、コンデンサ素
子をアルミニウム金属ケースに収納し弾性を有する封口
体を用いて密封し、熱収縮性塩化ビニルスリーブを被覆
して構成されていた。そしてコンデンサの定格シリーズ
等は、熱収縮性塩化ビニルの色を変えて識別し、電圧お
よび靜電容量を文字で印刷されていた。2. Description of the Related Art A conventional electrolytic capacitor is constructed by housing a capacitor element in an aluminum metal case, sealing it with an elastic sealing member, and covering it with a heat-shrinkable vinyl chloride sleeve. In the rated series of capacitors, the color of heat-shrinkable vinyl chloride was changed to be identified, and the voltage and electrostatic capacity were printed in characters.
【０００３】[0003]
【発明が解決しようとする課題】上述のような電解コン
デンサにおいては、図５のようにプリント基板９に取り
付けてはんだ付けする際に、溶融はんだの熱によってア
ルミニウム金属ケース１０に被覆されている塩化ビニル
スリーブ１１が熱収縮し、アルミニウム金属ケース１０
が露出し、プリント基板上の配線導体９ａと接触した
り、隣接する部品と接触するなどの課題があった。図５
中記号１０ａは露出部、１２は引出リード、１３ははん
だを示す。またプリント基板にはんだ付けして温水洗浄
すると温水が上記金属ケースと塩化ビニルスリーブとの
間に侵入し、乾燥しにくいなどの課題があった。そのた
め金属板の表面を透明のプラスチック樹脂で被覆した
後、打抜加工して有底状の金属ケースを形成し、該ケー
スを用いてコンデンサ素子を密閉したものが使用されて
いるが、コンデンサの定格、シリーズを識別するために
透明のプラスチック樹脂に着色材を配合すると、配合し
たプラスチック樹脂並びにその被覆用ラミネート材の種
類及び量が増加し在庫管理、作業効率等の面で支障があ
る。また着色材を配合したプラスチック樹脂はクリアブ
ルー色、クリアグリーン色など透明性で有彩色のものを
安定して得ることが困難であるなどの課題があった。In the electrolytic capacitor as described above, when the aluminum metal case 10 is covered by the heat of the molten solder when it is mounted on the printed circuit board 9 and soldered as shown in FIG. The vinyl sleeve 11 heat-shrinks, and the aluminum metal case 10
However, there is a problem that it is exposed and contacts with the wiring conductor 9a on the printed circuit board or contacts with an adjacent component. Figure 5
Medium symbol 10a indicates an exposed portion, 12 indicates a lead, and 13 indicates solder. Further, when the printed circuit board is soldered and washed with warm water, there is a problem that warm water enters between the metal case and the vinyl chloride sleeve and is difficult to dry. Therefore, after covering the surface of a metal plate with a transparent plastic resin, punching is performed to form a bottomed metal case, and the capacitor element is sealed using the case. When a transparent plastic resin is mixed with a coloring material to identify the rating and the series, the type and amount of the mixed plastic resin and its coating laminating material are increased, which poses a problem in terms of inventory management and work efficiency. Further, there is a problem that it is difficult to stably obtain a transparent chromatic color such as a clear blue color or a clear green color of a plastic resin mixed with a coloring material.
【０００４】[0004]
【課題を解決するための手段】本発明は上述の課題を解
決するため、金属板の表面を透明プラスチック樹脂で被
覆し、その表面を識別用着色材で染色した後、打抜加工
して有底状の金属ケースを形成し、または金属板の表面
を透明プラスチック樹脂で被覆し、打抜加工して有底状
の金属ケースを形成した後、該ケースの表面に識別用着
色材で染色し、該ケースにコンデンサ素子を収納し、弾
性を有する封口体を金属ケースの開口部に嵌合させて締
付け密封したことを特徴とする電解コンデンサの製造方
法である。In order to solve the above-mentioned problems, the present invention covers the surface of a metal plate with a transparent plastic resin, dyes the surface with a coloring material for identification, and then punches it. After forming a bottom metal case or coating the surface of a metal plate with a transparent plastic resin and punching it to form a bottom metal case, dye the surface of the case with a coloring material for identification. A method of manufacturing an electrolytic capacitor, characterized in that a capacitor element is housed in the case, an elastic sealing body is fitted into an opening of a metal case, and is tightly sealed.
【０００５】[0005]
【作用】識別用着色材は透明プラスチック樹脂で被覆さ
れた表面に染色されるので、透明性で有彩色のある製品
が得られ多種に亘り定格シリーズの識別が容易となり、
プリント基板に取り付けはんだ付けしても金属ケースが
露出せず絶縁性に優れた電解コンデンサが得られる。[Function] Since the coloring material for identification is dyed on the surface coated with the transparent plastic resin, transparent and chromatic colored products can be obtained, and various types of rating series can be easily identified.
Even if it is mounted on a printed circuit board and soldered, the metal case is not exposed and an electrolytic capacitor with excellent insulation can be obtained.
【０００６】[0006]
【実施例】以下本発明を図１〜図４に示す実施例により
説明する。図１は、ナイロン系ポリアミド樹脂で厚さ１
５μｍ〜９０μｍからなる透明プラスチック樹脂１を純
度９５％以上の厚さ０．２ｍｍ〜０．５ｍｍ程度からな
るアルミニウム金属板２上にラミネートして被覆されて
いる。次にこの透明プラスチック樹脂１の表面に酢酸系
などの着色材３で染色した後、染色面が外側になるよう
絞り加工し、図２のように打抜ダイス４と打抜ポンチ５
によって打抜加工して、図３のように有底上の金属ケー
ス６を形成する。この染色部の深さは３μｍ以上が望ま
しく、プラスチック樹脂１の最深部まで染色してもよ
い。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. Figure 1 shows nylon-based polyamide resin with a thickness of 1
A transparent plastic resin 1 having a thickness of 5 μm to 90 μm is laminated and coated on an aluminum metal plate 2 having a purity of 95% or more and a thickness of about 0.2 mm to 0.5 mm. Next, after the surface of the transparent plastic resin 1 is dyed with a coloring material 3 such as acetic acid, it is drawn so that the dyed surface is on the outside, and a punching die 4 and a punching punch 5 as shown in FIG.
The metal case 6 having a bottom is formed by punching as shown in FIG. The depth of this dyed part is preferably 3 μm or more, and the deepest part of the plastic resin 1 may be dyed.
【０００７】なお、上記着色材３は図１のようにアルミ
ニウム金属板２上に透明プラスチック樹脂１を被覆して
絞り加工した段階で、着色材３の液中に浸漬してプラス
チック樹脂１の表面を染色した後、図２のように打抜ダ
イス４と打抜ポンチ５によって打抜加工し図３のように
有底上の金属ケース６を形成してもよい。そして、着色
材３は灰色、黒の他彩色および明度を変えて、緑、青、
黄など有彩色並びにその透明性を有するものなど多種に
わたり使用できる。The coloring material 3 is immersed in a liquid of the coloring material 3 at the stage where the transparent plastic resin 1 is coated on the aluminum metal plate 2 and drawn as shown in FIG. After dyeing, the metal case 6 with a bottom may be formed as shown in FIG. 3 by punching with a punching die 4 and a punching punch 5 as shown in FIG. Then, the coloring material 3 has different colors of gray and black, and the lightness is changed to green, blue,
A wide variety of chromatic colors such as yellow and those having transparency can be used.
【０００８】次に上述の金属ケース６内にコンデンサ素
子７を収納し、弾性を有する封口体８を金属ケース６の
開口部に嵌合させて締付け密封し図４のように完成す
る。Next, the capacitor element 7 is housed in the metal case 6 described above, and the elastic sealing body 8 is fitted into the opening of the metal case 6 and tightened and sealed to complete the process as shown in FIG.
【０００９】表１は、定格５０Ｖ１μＦについて従来の
熱収縮性塩化ビニル樹脂を被覆した製品および比較例と
してのナイロン系ポリアミド（原料着色）樹脂を被覆し
た製品および本発明法による同定格のナイロン系ポリア
ミド透明樹脂を着色材で染色した製品について、プリン
ト基板上に取付け２６０℃３分間のはんだ付け試験を行
った結果および外装材の透明有彩色性を調べた結果を示
し、本発明法による製品は耐熱性に優れ、かつ識別色が
多種に亘り利用できることが実証された。Table 1 shows a product coated with a conventional heat-shrinkable vinyl chloride resin for a rated voltage of 50 V and 1 μF, a product coated with a nylon-based polyamide (colored raw material) resin as a comparative example, and a nylon-based polyamide of the same rating according to the method of the present invention. Regarding the product in which the transparent resin is dyed with a coloring material, the result of the soldering test at 260 ° C. for 3 minutes mounted on the printed circuit board and the result of the transparent chromaticity of the exterior material are shown. It has been proved that it has excellent properties and can be used for a wide variety of identification colors.
【００１０】なお表１中本発明法Ａは、金属板の表面を
プラスチック樹脂で被覆し、その表面に識別用着色材で
染色した後、打抜加工して形成した金属ケースを用いた
場合、本発明法Ｂは、金属板の表面をプラスチック樹脂
で被覆し、打抜加工して金属ケースを形成した後、上記
着色材の液中に浸漬し染色したものを用いた場合であ
る。In Table 1, the method A of the present invention uses a metal case formed by coating the surface of a metal plate with a plastic resin, dyeing the surface with a coloring material for identification, and then punching the metal case. The method B of the present invention is a case where a metal plate is coated with a plastic resin, punched and processed to form a metal case, which is then immersed in the liquid of the colorant and dyed.
【００１１】[0011]
【発明の効果】以上説明したように本発明法による電解
コンデンサは、耐熱性に優れかつ有彩色の識別区分範囲
が拡大できるので、特に小径、底背形など文字表示の面
積が少ない製品では、識別区分が容易になる。また被覆
されるプラスチック樹脂原材料の品種を増す必要がな
く、作業効率、在庫管理面においても有利となり工業的
価値の大なるものである。As described above, the electrolytic capacitor according to the method of the present invention is excellent in heat resistance and can expand the chromatic color identification classification range. Therefore, especially in products with a small character display area such as a small diameter and a bottom profile, Identification classification becomes easy. Further, it is not necessary to increase the kinds of plastic resin raw materials to be coated, which is advantageous in terms of work efficiency and inventory control, and is of great industrial value.
【図１】本発明法に係る電解コンデンサ用金属ケースの
製造過程における説明図である。FIG. 1 is an explanatory view in the manufacturing process of a metal case for an electrolytic capacitor according to the method of the present invention.
【図２】本発明法に係る金属ケースの打抜加工法の説明
図である。FIG. 2 is an explanatory view of a punching method for a metal case according to the method of the present invention.
【図３】本発明法に係る金属ケースの説明図である。FIG. 3 is an explanatory view of a metal case according to the method of the present invention.
【図４】本発明法に係る電解コンデンサの一実施例の説
明図である。FIG. 4 is an explanatory diagram of an example of the electrolytic capacitor according to the method of the present invention.
【図５】従来法による電解コンデンサの一実施例の説明
図である。FIG. 5 is an explanatory diagram of an example of an electrolytic capacitor according to a conventional method.
１ 透明プラスチック樹脂 ２ アルミニウム金属板 ３ 着色材 ６ 金属ケース ７ コンデンサ素子 ８ 封口体 1 transparent plastic resin 2 Aluminum metal plate 3 coloring materials 6 metal cases 7 Capacitor element 8 Sealing body
【表１】 [Table 1]
Claims (2)
被覆し、その表面を識別用着色材で染色した後、打抜加
工して有底状の金属ケースを形成し、該ケースにコンデ
ンサ素子を収納し、弾性を有する封口体を金属ケースの
開口部に嵌合させて締付け密封したことを特徴とする電
解コンデンサの製造方法。1. A surface of a metal plate is covered with a transparent plastic resin, the surface is dyed with a coloring material for identification, and punched to form a bottomed metal case, and a capacitor element is attached to the case. A method for manufacturing an electrolytic capacitor, which is characterized in that a sealing body that is housed and has elasticity is fitted into an opening of a metal case, and is tightly sealed.
被覆し、打抜加工して有底状の金属ケースを形成した
後、該ケースの表面を識別用着色材で染色し、該ケース
にコンデンサを収納し、弾性を有する封口体を金属ケー
スの開口部に嵌合させて締付け密閉したことを特徴とす
る電解コンデンサの製造方法。2. A surface of a metal plate is covered with a transparent plastic resin and punched to form a metal case having a bottom, and then the surface of the case is dyed with a coloring material for identification, and a capacitor is applied to the case. A method of manufacturing an electrolytic capacitor, characterized in that a sealing body having elasticity is fitted into an opening of a metal case, and is tightly closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5621891A JPH0521275A (en) | 1991-01-29 | 1991-01-29 | Method of manufacturing electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5621891A JPH0521275A (en) | 1991-01-29 | 1991-01-29 | Method of manufacturing electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0521275A true JPH0521275A (en) | 1993-01-29 |
Family
ID=13020968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5621891A Pending JPH0521275A (en) | 1991-01-29 | 1991-01-29 | Method of manufacturing electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521275A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8422871B2 (en) | 2008-01-29 | 2013-04-16 | Tounetsu Corporation | Immersion heater |
-
1991
- 1991-01-29 JP JP5621891A patent/JPH0521275A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8422871B2 (en) | 2008-01-29 | 2013-04-16 | Tounetsu Corporation | Immersion heater |
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