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141. 发明专利

JPS5465303A STATOR COIL FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS5465303A
公开(公告)日：1979-05-25
申请号：JP13075777
申请日：1977-11-02
申请人： HITACHI LTD
发明人： KADOTANI KENZOU , SATOU TAKANORI , FUNAHATA KAZUYUKI
IPC分类号： H02K3/40
摘要： PURPOSE:To prevent corona, by shielding the coil-end with double layer of high resistance corona shield consisting of a dry-tape applied with insulator powder, and causing one layer to be wound in lap winding and the other layer to be wound in bag-like winding. CONSTITUTION:The coil conductor part 11 of the coil-end 10 is provided with an insulator layer from outside, and a low resistance corona shield layer 13 is formed on the outer rotor outlet portion of the insulator layer 12, on which an insulator layer 14 is provided partly overlapping thereon, thus successively disposed and fixed from inside are, an inner high resistance corona shield layer 14, an intermediate insulator layer 15, and an outer high resistance corona shield layer 16. A dry- tape 17 is used as the high resistance corona shield layer 14, 16, said tape consists of a glass-cloth tape impregnated with varnish containing silicon carbide, and one of said layers is wound in lap winding and the other is wound in bag-like winding. In this construction, the voltage distribution is made uniform so that damage of the insulator layers by corona occurring along the surface thereof can be prevented.

143. 发明专利

JPS5370330A ELECTRICAL INSULATING APPARATUS AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JPS5370330A
公开(公告)日：1978-06-22
申请号：JP14524176
申请日：1976-12-03
申请人： HITACHI LTD
发明人： UMEDA TAKAO , SHIMIZU TOSHIO , KASAHARA MASATOSHI , TSUTSUMI YASUYUKI , KADOTANI KENZOU
IPC分类号： H02K3/38 , H01B17/00 , H01B19/00 , H01F5/06 , H01F27/02 , H01F27/32 , H01F38/22 , H01F41/00
摘要： PURPOSE:To improve the anti-tracking characteristic of the surface by forming the resin layer randomly containing short fibers having a large dielectric constant on the surface of electrical insulators in the neighbourhood of the exposed part of the conductor in the charging part.

144. 发明专利

JPS5361007A SUPERCONDUCTIVE ROTOR 失效
公开(公告)号：JPS5361007A
公开(公告)日：1978-06-01
申请号：JP13571376
申请日：1976-11-11
申请人： HITACHI LTD
发明人： KADOTANI KENZOU
IPC分类号： H02K3/46 , H02K19/00 , H02K55/04
摘要： PURPOSE:To reduce a stress, caused by a thermal shrinking rate difference, applied to the bind, by constructing a non-adhesive face, with a saddle-shape coil being slidable with respect to the bind, between the saddle-shape coil and the bind near a portion where each of the saddle-shape coils is neighboring.

146. 发明专利

JPS5357403A COIL END MOULDING METHOD OF REVOLVING ELECTRICAL MACHINERY 失效
公开(公告)号：JPS5357403A
公开(公告)日：1978-05-24
申请号：JP13177476
申请日：1976-11-04
申请人： HITACHI LTD
发明人： KASAHARA MASATOSHI , KADOTANI KENZOU
IPC分类号： H02K3/38 , H02K3/44 , H02K15/04 , H02K15/12
摘要： PURPOSE:To make a heat dissipation good with making a flesh thickness of a mould part thin, by charging a flexible hollow rubber inside of a coil end, setting this within a mould, after pour moulding, pulling out rubber, and by making a coil as one body with resin.

150. 发明专利

JPS51132280A IMPREGNATION AND HARDENING OF EPOXY RESIN VARNISH INTO AROMATIC POLYAMIDE FIBER BASE LAYER 失效
公开(公告)号：JPS51132280A
公开(公告)日：1976-11-17
申请号：JP5613975
申请日：1975-05-14
申请人： HITACHI LTD
发明人： KADOTANI KENZOU , UMEDA TAKAO , FUNAHATA KAZUYUKI
IPC分类号： C08J5/24 , C08J5/00

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