发明名称 |
MULTILAYER FILM CAPACITOR AND PRODUCTION METHOD THEREOF |
摘要 |
A both-side-metallized polypropylene film having aluminum-zinc alloy evaporated on both sides of the film and a non-metallized polypropylene film are wound on a cylindrical bobbin plural times, thus providing a cylindrical winding body formed of multi-layer films. Then, sprayed-metal electrodes are formed on both sides of the cylindrical winding body. The cylindrical winding body is cut to obtain plural capacitor elements. Pulse laser beam is applied to a cut surface of the capacitor element, then metal exposed on the cut surface and metal evaporated on a surface of the films near the cut surface are removed by a distance not shorter than 0.05mm from the cut surface. This processes provides a multi-layer film capacitor usable at a voltage not lower than AC350V. <IMAGE> |
申请公布号 |
EP1400991(A4) |
申请公布日期 |
2007.09.19 |
申请号 |
EP20020733340 |
申请日期 |
2002.06.06 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
SAITO, TOSHIHARU;NAKATSUBO, KAZUHIRO;OSAMURA, KAZUMI;SHIBUYA, MASATOSHI;NISHIMORI, TOSHIYUKI |
分类号 |
H01G4/14;H01G4/232;H01G4/30;H01G4/32;(IPC1-7):H01G4/015 |
主分类号 |
H01G4/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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