To propose a means which can conduct an insulating film having superior improving effects of an insulation, corrosion resistance, adhesive properties, heat resistance and magnetic characteristics and treating at a low temperature for a short time, without pretreatment such as degreasing cleaning, annealing or the like in insulation treatment of the end face of a core.
A rotary electric machine for a vehicle comprises a laminated steel sheet, containing a burr after punching a core material and having an end-face roughness of the rugged part thereof of 5 to 50 μm; a dry insulating film of an organic silicon compound, having a mean film thickness of 0.1 to 30 μm and a withstand voltage of 60 V or more and formed on the outer surface (the end face or upper or the lower surface) of the core; and a conductive member disposed opposite to the dry insulating film.
COPYRIGHT: (C)2004,JPO
Kazutaka Higashine
Opening power
Hiroyuki Kikuchi
Shin Hirofumi
Takeo Fukuda
Shu Tanaka
Honda motor industry stock company
Nippon Steel Plant Design Co., Ltd.
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Tomoyuki Yabuki
Tsugeko Shigeo
Yoshiyuki Watanabe