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Title:
MULTILAYERED ELECTRIC INSULATED WIRE AND TRANSFORMER USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/037417
Kind Code:
A1
Abstract:
This invention provides a multilayered electric insulated wire comprising a conductor and three or more extruded insulation layers covering the conductor. In the insulation layers, the outermost layer (A) in the insulation layer is formed of an extruded covering layer of such a resin that the elongation of the resin immersed for 2 sec in a solder tank of 150ºC is at least equal to that before the heat treatment and is not less than 290%. The innermost layer (B) is formed of such a resin that the elongation of the resin immersed for 2 sec in a solder tank of 150ºC is at least equal to that before the heat treatment and is not less than 290%. The insulation layer (C) between the outermost layer and the innermost layer is formed of an extruded covering layer of a crystalline resin having a melting point of 280ºC or above or a noncrystalline resin having a glass transition temperature of 200ºC or above. There is also provided a transformer comprising the multilayered electric insulated wire.

Inventors:
FUKUDA, Hideo (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 1008322, JP)
福田秀雄 (〒22 東京都千代田区丸の内2丁目2番3号 古河電気工業株式会社内 Tokyo, 1008322, JP)
ONODERA, Makoto (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 1008322, JP)
小野寺真 (〒22 東京都千代田区丸の内2丁目2番3号 古河電気工業株式会社内 Tokyo, 1008322, JP)
FUJIWARA, Dai (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 1008322, JP)
藤原大 (〒22 東京都千代田区丸の内2丁目2番3号 古河電気工業株式会社内 Tokyo, 1008322, JP)
SAITO, Minoru (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 1008322, JP)
斉藤稔 (〒22 東京都千代田区丸の内2丁目2番3号 古河電気工業株式会社内 Tokyo, 1008322, JP)
Application Number:
JP2006/319555
Publication Date:
April 05, 2007
Filing Date:
September 29, 2006
Export Citation:
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Assignee:
THE FURUKAWA ELECTRIC CO., LTD. (2-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 22, 1008322, JP)
古河電気工業株式会社 (〒22 東京都千代田区丸の内2丁目2番3号 Tokyo, 1008322, JP)
FUKUDA, Hideo (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 1008322, JP)
福田秀雄 (〒22 東京都千代田区丸の内2丁目2番3号 古河電気工業株式会社内 Tokyo, 1008322, JP)
ONODERA, Makoto (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 1008322, JP)
小野寺真 (〒22 東京都千代田区丸の内2丁目2番3号 古河電気工業株式会社内 Tokyo, 1008322, JP)
FUJIWARA, Dai (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 1008322, JP)
藤原大 (〒22 東京都千代田区丸の内2丁目2番3号 古河電気工業株式会社内 Tokyo, 1008322, JP)
SAITO, Minoru (2-3, Marunouchi 2-chome, Chiyoda-k, Tokyo 22, 1008322, JP)
International Classes:
H01B7/02; H01B7/00; H01F5/06; H01F27/32
Domestic Patent References:
WO1999022381A1
WO2001056041A1
WO2002099821A1
Foreign References:
JP2002358833A
JP2004193117A
JPH10134642A
JPH11176245A
JPH06139829A
JPH06139828A
JPH10223052A
JPH10125140A
JPH06223634A
JPH0356112U
Other References:
See also references of EP 1950769A1
Attorney, Agent or Firm:
IIDA, Toshizo (ISHII Bldg. 3F, 1-10 Shimbashi 3-chom, Minato-ku Tokyo, 105-0004, JP)
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