JPH0232770B2 - KINZOKUKAHORIPUROPIRENFUIRUMUKONDENSANOSEIZOHOHO - Google Patents
KINZOKUKAHORIPUROPIRENFUIRUMUKONDENSANOSEIZOHOHOInfo
- Publication number
- JPH0232770B2 JPH0232770B2 JP3873183A JP3873183A JPH0232770B2 JP H0232770 B2 JPH0232770 B2 JP H0232770B2 JP 3873183 A JP3873183 A JP 3873183A JP 3873183 A JP3873183 A JP 3873183A JP H0232770 B2 JPH0232770 B2 JP H0232770B2
- Authority
- JP
- Japan
- Prior art keywords
- capacitor element
- capacitor
- polypropylene film
- metallized polypropylene
- metallicon
- 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 claims description 21
- 239000004743 Polypropylene Substances 0.000 claims description 11
- -1 polypropylene Polymers 0.000 claims description 11
- 229920001155 polypropylene Polymers 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 2
- 239000008158 vegetable oil Substances 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 4
- 235000019198 oils Nutrition 0.000 description 4
- 239000004033 plastic Substances 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- NZWOPGCLSHLLPA-UHFFFAOYSA-N methacholine Chemical compound C[N+](C)(C)CC(C)OC(C)=O NZWOPGCLSHLLPA-UHFFFAOYSA-N 0.000 description 1
- 229960002329 methacholine Drugs 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
本発明は含浸作業を改善した金属化ポリプロピ
レンフイルムコンデンサの製造方法に関する。
一般にフイルムコンデンサの製造方法としては
一対の金属化プラスチツクフイルムを積層巻回し
形成したコンデンサ素子の両端面にメタリコン電
極を形成し、該メタリコン電極にリード線を接続
した後乾燥→絶縁油含浸処理を施し、しかるのち
コンデンサ素子表面の絶縁油を脱油した後樹脂ケ
ースに収納し、該樹脂ケース空隙部に封口樹脂を
充填するようにするか、または一対の金属化プラ
スチツクフイルムを積層巻回し形成したコンデン
サ素子両端面にメタリコン電極を形成し該メタリ
コン電極にリード線を取着した後ケースに収納し
該ケース開口部を封口板にて密封し、該封口板に
設けた封止口から真空脱気→絶縁油の真空含浸処
理を施し、しかるのち前記封止口をはんだ付けし
て封止してなるようにするものである。しかしな
がら近年含浸剤として用い絶縁油や石油事情に影
響されコスト高を余儀なくされており、それに加
えて含浸処理は特殊な含浸装置を用いて４〜５時
間要するため作業工程時間を多く要すると同時に
自動化の大きな阻害要因になつていた。そのため
含浸工程を省略し上記のような問題点を解消する
と同時に二次災害に対して安全である無含浸のフ
イルムコンデンサが提案されており、今後多くの
分野で使用される状況にある。しかしながら含浸
装置を用い含浸したものと無含浸のものを比較す
ると無含浸のものは経時に対する静電容量減少が
大きな問題であり、実用化にはこの問題解決が必
要となつていた。
本発明は上記のような点に鑑みてなされたもの
で、素子両端面に形成したメタコリン電極部のみ
に絶縁液を塗布した後樹脂で覆うことによつて特
性劣化が少なく、しかも低コストで軽量化に貢献
できるポリプロピレンフイルムコンデンサを能率
的に得ることのできる金属化ポリプロピレンフイ
ルムコンデンサの製造方法を提供することを目的
とするものである。
以下本発明を実施例によつて説明する。すなわ
ち本発明に用いる誘電体としては発熱せず、含水
率が小さくしかも耐湿性のすぐれたポリプロピレ
ンフイルムを用いる。まず一端面にマージン部を
残して蒸着電極を形成した100mm幅×9μの金属化
ポリプロピレンフイルム一対を積層巻回し、
400V−12.5μFのコンデンサ素子を形成し、該コ
ンデンサ素子両端面にメタリコン電極を形成し該
メタリコン電極にリード線を取着し、しかるのち
前記コンデンサ素子を85〜95℃に加熱した状態で
表に示す絶縁液それぞれを前記メタリコン電極部
にハケ塗りし自然冷却した後底をエポキシ板で塞
いだプラスチツクパイプに収納し、空隙部にエポ
キシ樹脂を充填し、該エポキシ樹脂が硬化する前
に前記エポキシ板を取り除いてなる金属化ポリプ
ロピレンフイルムコンデンサの70℃×350V条件
下での時間に対する静電容量変化率を測定した結
果、図に示すようになつた。なおＧはなにも塗布
しないものである。また試料はそれぞれ20個を用
いた。
The present invention relates to a method of manufacturing metallized polypropylene film capacitors with improved impregnation operations. In general, the manufacturing method for film capacitors is to form metallicon electrodes on both end faces of a capacitor element made by laminating and winding a pair of metallized plastic films, connect lead wires to the metallicon electrodes, and then dry and then impregnate with insulating oil. Then, after removing the insulating oil from the surface of the capacitor element, it is housed in a resin case, and the cavity of the resin case is filled with sealing resin, or a capacitor is formed by laminating and winding a pair of metallized plastic films. After forming metallicon electrodes on both end faces of the element and attaching lead wires to the metallicon electrodes, it is stored in a case, the opening of the case is sealed with a sealing plate, and vacuum degassing is performed through the sealing port provided on the sealing plate → A vacuum impregnation treatment with insulating oil is performed, and then the sealing port is soldered and sealed. However, in recent years, it has been used as an impregnating agent and has been forced to increase in cost due to the influence of insulating oil and petroleum conditions.In addition, the impregnation process requires 4 to 5 hours using special impregnation equipment, so the work process is time-consuming and automated. This had become a major hindrance. Therefore, a non-impregnated film capacitor has been proposed that eliminates the impregnation process, solves the above problems, and is safe from secondary disasters, and is expected to be used in many fields in the future. However, when comparing those impregnated using an impregnating device with those without impregnation, the one without impregnation has a major problem of decreasing capacitance over time, and this problem needs to be solved for practical use. The present invention was made in view of the above points, and by applying an insulating liquid only to the methacholine electrode portions formed on both end faces of the element and then covering them with resin, the present invention has little characteristic deterioration, and is also low cost and lightweight. It is an object of the present invention to provide a method for manufacturing a metallized polypropylene film capacitor that can efficiently produce a polypropylene film capacitor that can contribute to the development of a metallized polypropylene film capacitor. The present invention will be explained below with reference to Examples. That is, the dielectric used in the present invention is a polypropylene film that does not generate heat, has a low moisture content, and has excellent moisture resistance. First, a pair of metallized polypropylene films of 100 mm width x 9 μm with a margin part left on one end surface and a vapor-deposited electrode formed thereon were laminated and wound.
A 400V-12.5μF capacitor element was formed, metallicon electrodes were formed on both end faces of the capacitor element, lead wires were attached to the metallicon electrodes, and then the capacitor element was heated to 85 to 95°C and exposed. After applying each of the insulating liquids shown on the metallic electrode part with a brush and allowing it to cool naturally, it is stored in a plastic pipe whose bottom is closed with an epoxy board, and the gap is filled with epoxy resin, and before the epoxy resin hardens, the epoxy board is The capacitance change rate versus time of a metallized polypropylene film capacitor obtained by removing the . Note that G means that nothing is coated. In addition, 20 samples were used for each.
【表】
図から明らかなように参考例Ｄ，Ｅ，Ｆのもの
は時間の経過とともに容量変化率が大きくなり、
特にＦのものは最初からなにも塗布しないＧと同
じで、またＥのものは1000時間時点でＧと同じく
なるのに対し、本発明Ａ，Ｂ，Ｃのものは若干の
容量減少はあるが実用上問題のない結果を示し
た。なお実施例においてメタリコン電極部への絶
縁液塗布手段としてハケ塗りをしたもので説明し
たが、他の手段としてメタリコン電極部を絶縁液
槽に浸漬するかまたはスプレー塗布などを行つて
もよい。また外装構造として上記実施例でプラス
チツクパイプを用いるものを例示して説明したが
プラスチツクケースまたは金属ケースを用いても
よい。さらに上記実施例では塗布手段としてコン
デンサ素子を加熱した状態で行うことを例示して
説明したが、常温化で塗布した場合でも特に不都
合はない。
以上のように構成してなる金属化ポリプロピレ
ンフイルムコンデンサの製造方法によれば、静電
容量の経時変化を極力小さく抑えながら特殊な含
浸装置を用いることなく作業工程時間を大幅に短
縮でき自動化を容易にすると同時に絶縁液の使用
量を大幅に低減し大幅なコストダウンを図ること
ができる多くの利点を有するものである。
以上述べたように本発明によれば常温またはコ
ンデンサ素子を加熱した状態でメタリコン電極部
に植物油または硬化剤を含まないエポキシ樹脂液
体を塗布したのちコンデンサ素子を樹脂でくるむ
ことによつて絶縁液の使用量を大幅に低減でき、
さらに特殊な含浸装置を用いることなく作業能率
向上を果たすことができ大幅なコストダウンを図
ることのできる工業的価値の高い金属化ポリプロ
ピレンフイルムコンデンサの製造方法を提供でき
る。[Table] As is clear from the figure, the rate of change in capacity of Reference Examples D, E, and F increases over time,
In particular, type F is the same as G without any application from the beginning, and type E becomes the same as G after 1000 hours, whereas items A, B, and C of the present invention have a slight capacity decrease. The results showed that there were no problems in practical use. In the embodiments, brush coating was used as a means for applying the insulating liquid to the metallicon electrode portion, but other methods such as immersing the metallicon electrode portion in an insulating liquid tank or spray coating may also be used. Furthermore, although the above embodiments used plastic pipes as an example of the exterior structure, a plastic case or a metal case may also be used. Further, in the above embodiments, the application method is performed while the capacitor element is heated, but there is no particular disadvantage in applying the application at room temperature. According to the manufacturing method of the metallized polypropylene film capacitor constructed as described above, the time-dependent change in capacitance is kept to a minimum while the work process time can be significantly shortened without using special impregnation equipment, and automation is facilitated. At the same time, it has many advantages in that it can significantly reduce the amount of insulating liquid used, leading to significant cost reductions. As described above, according to the present invention, an epoxy resin liquid that does not contain vegetable oil or a curing agent is applied to the metallic electrode part at room temperature or while the capacitor element is heated, and then the capacitor element is wrapped in resin, thereby forming an insulating liquid. Usage can be significantly reduced,
Furthermore, it is possible to provide a method for manufacturing a metallized polypropylene film capacitor of high industrial value, which can improve work efficiency without using any special impregnating equipment, and can significantly reduce costs.
図面は時間に対する静電容量変化率を示す特性
曲線図である。
The drawing is a characteristic curve diagram showing the capacitance change rate with respect to time.
Claims (1)
し両端面にメタリコン電極を設けたコンデンサ素
子の前記メタリコン電極部のみに植物油または硬
化剤を含まないエポキシ樹脂液を塗布したのち、
前記コンデンサ素子を樹脂で覆うことを特徴とす
る金属化ポリプロピレンフイルムコンデンサの製
造方法。1 After applying vegetable oil or an epoxy resin liquid containing no curing agent only to the metallicon electrode portion of a capacitor element in which a pair of metallized polypropylene films are wound and metallicon electrodes are provided on both end faces,
A method for manufacturing a metallized polypropylene film capacitor, characterized in that the capacitor element is covered with a resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3873183A JPH0232770B2 (en) | 1983-03-08 | 1983-03-08 | KINZOKUKAHORIPUROPIRENFUIRUMUKONDENSANOSEIZOHOHO |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3873183A JPH0232770B2 (en) | 1983-03-08 | 1983-03-08 | KINZOKUKAHORIPUROPIRENFUIRUMUKONDENSANOSEIZOHOHO |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59163815A JPS59163815A (en) | 1984-09-14 |
| JPH0232770B2 true JPH0232770B2 (en) | 1990-07-23 |
Family
ID=12533468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3873183A Expired - Lifetime JPH0232770B2 (en) | 1983-03-08 | 1983-03-08 | KINZOKUKAHORIPUROPIRENFUIRUMUKONDENSANOSEIZOHOHO |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0232770B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0630320B2 (en) * | 1985-03-15 | 1994-04-20 | 日本石油化学株式会社 | Metallized film capacitor |
| JPS63179509A (en) * | 1987-01-21 | 1988-07-23 | ニチコン株式会社 | Dry-type metallized film capacitor |
| JPS63179508A (en) * | 1987-01-21 | 1988-07-23 | ニチコン株式会社 | Dry-type metallized film capacitor |
| JP2696246B2 (en) * | 1989-03-29 | 1998-01-14 | 株式会社アイ・ライティング・システム | Immersion capacitors |
-
1983
- 1983-03-08 JP JP3873183A patent/JPH0232770B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59163815A (en) | 1984-09-14 |
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