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1. 发明专利

JPS5639631A SOLIDDSTATE RELAY 失效
公开(公告)号：JPS5639631A
公开(公告)日：1981-04-15
申请号：JP11526479
申请日：1979-09-10
申请人： HITACHI LTD
发明人： TOMITA SHIGEO , NOBE HIDETOSHI
IPC分类号： H03K17/73 , H03K17/08
摘要： PURPOSE:To make it possible to control even a relay, etc., which can be driven with small electric current, by suppressing an arrival overvoltage below the dielectric strength of a thyristor. CONSTITUTION:To terminal 3, terminal 4 is connected via thyristor 22 connected in the forward direction and to terminal 3, terminal 4 is further connected via avalanche element 23 connected in the opposite direction. When an ON signal is applied to terminals 1 and 2, LED13 of photocoupler 12 turns on to turn on thyristor 14 and ignition current flows to thyristor 22 by way of resistance 15 and thyristor 14, turning on the main circuit. Then, an arrival overvoltage can be suppressed below the dielectric strength of thyristors 14 and 22 by setting the avalanche voltage of element 23 below the dielectric strength of thyristors 14 and 22. Thus, the relay which can be driven with small electric current can be brought under control.

2. 发明专利

JPS57101545A LOCKING DEVICE FOR COVER OF ROTARY ELECTRODYNAMIC MACHINE 失效
公开(公告)号：JPS57101545A
公开(公告)日：1982-06-24
申请号：JP17455680
申请日：1980-12-12
申请人： HITACHI LTD
发明人： IHARA HIROFUMI , NAKAYAMA TOORU , NOBE HIDETOSHI
IPC分类号： H02K5/00 , H02K5/22
摘要： PURPOSE:To obtain the small-sized locking device for the cover having excellent closely adhesive property by bending a spring ring and forming a ringed section in a shape being along a side surface of a handle while positioning a center of the ringed section at a section upper than a bent section. CONSTITUTION:In the locking device 40 for the cover of which the spring ring 90 is hung to metal fittings separately mounted and the handle 8 is pushed down and it is turned on, the ringed section 90a of the spring ring 90 is formed so as to be along the side surface of the handle 8. The nose sections of the spring ring are bent so that the center 11 of the ringed section 90a is upward positioned and fixed sections 10 are shaped, and the fixing sections 10 are fastened to the handle 8. Accordingly, the closely adhesive property is improved because the device is miniaturized while downward push force works.

3. 发明专利

JPS5257905A CYLINDRICAL STATOR OF ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS5257905A
公开(公告)日：1977-05-12
申请号：JP13296975
申请日：1975-11-07
申请人： HITACHI LTD
发明人： YAMATAKE SHIGEO , ANDOU SHIYOUJI , SUGAWARA YASUSHI , NOBE HIDETOSHI
IPC分类号： H02K3/12
摘要： PURPOSE:To simplify the supporting structure of winding ends, by making each winding channel parallel and making the vector sum of winding's centrifugal forces in each quadrant roughly placed on the center line in each quadrant to balance the centrifugal forces generated in windings.

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