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31. 发明专利

JPS58101497A COOLER FOR ELECTRONIC PART 失效
公开(公告)号：JPS58101497A
公开(公告)日：1983-06-16
申请号：JP19861181
申请日：1981-12-11
申请人： HITACHI LTD
发明人： YODA MIKIO , SHIBATA EKIZOU , OZAKA AKIRA , OKITA MITSUO , ISHII TOSHIMI
IPC分类号： H05K7/20

32. 发明专利

JPS57113529A DEVICE FOR DRIVING ELECTROMAGNETIC CONTACTOR 失效
公开(公告)号：JPS57113529A
公开(公告)日：1982-07-15
申请号：JP40381
申请日：1981-01-07
申请人： HITACHI LTD
发明人： OZAKA AKIRA , SHINOHARA YASUSHI , ABE AKISHI
IPC分类号： H01H47/32

33. 发明专利

JPH08216740A FEEDER CIRCUIT 失效
公开(公告)号：JPH08216740A
公开(公告)日：1996-08-27
申请号：JP2148995
申请日：1995-02-09
申请人： HITACHI LTD
发明人： HOSODA MINORU , OUCHI SHIGETOSHI , OZAKA AKIRA , YOSHIDA TORU , ICHIKAWA FUMIHISA , SHIONO SHIGEO , HONDA HARUO
IPC分类号： B60M1/10 , B60M3/04 , B60M5/00
摘要： PURPOSE: To prevent the dielectric breakdown of a change-over switching device so as to prevent the power failure of a feeder circuit by providing a current discharge means for making a residual current flow to an earth, between an intermediate section and the earth divided by a pair of change-over switching devices. CONSTITUTION: A discharge device 1, a current discharge means, is installed between an intermediate section 5 and the earth 30. An opening signal from a change-over switching device 7 is inputted to the control device 2 of the discharge device 1 after a vehicle 10 passes the change-over switching device 7. On the basis of this input, the ultraviolet ray generating device 15 of the discharge device 1 receives a command from the control device 2 and irradiates ultraviolet rays 15A to a discharge gap 14 so as to apply a trigger to the discharge gap 14 and thereby to make the discharge gap conductive, and the residual current of the intermediate section 5 flows to the earth 30 through the discharge gap 14 and a discharge resistance 13. The dielectric breakdown of the change-over switching device 7 is thereby prevented, and the power failure of a feeder circuit can be prevented.

34. 发明专利

JPH0142096B2 失效
公开(公告)号：JPH0142096B2
公开(公告)日：1989-09-11
申请号：JP2796580
申请日：1980-03-07
申请人： HITACHI LTD
发明人： OZAKA AKIRA , YODA MIKIO , SHINOHARA YASUSHI , ISHAMA FUMIO
IPC分类号： H01H47/32 , H01H47/00 , H01H47/22

35. 发明专利

JPS5940420A Dc electromagnetic contactor 失效
公开(公告)号：JPS5940420A
公开(公告)日：1984-03-06
申请号：JP14927382
申请日：1982-08-30
申请人： Hitachi Ltd
发明人： MORIYA SHIGERU , OZAKA AKIRA
IPC分类号： H01H33/20 , H01H9/30

36. 发明专利

JPS58105527A DRIVING DEVICE FOR DIRECT CURRENT SOLENOID VALVE 失效
公开(公告)号：JPS58105527A
公开(公告)日：1983-06-23
申请号：JP20352281
申请日：1981-12-18
申请人： HITACHI LTD
发明人： OZAKA AKIRA , YODA MIKIO , ISHIYAMA FUMIO
IPC分类号： F16K31/06 , H01F7/18
摘要： PURPOSE:To reduce the capacity of the controlling contact part as well as to cut down the breaking time of the titled device by a method wherein the electromagnetic energy of a solenoid coil is consumed by a transistor using the transistor and a flywheel diode. CONSTITUTION:The solenoid coil 11 and the transistor 7 are connected directly, and the flywheel diode is connected to the above in parallel to the series circuit. Now, when a contact point 12 is open-circuited in order to deenergize the coil 11, the output of a diode bridge circuit 4 is zeroed, and the voltage on a capacitor 6 begins to discharge. On the other hand, output voltage is inverted by the back electromotive force of the coil 11. The electromagnetic energy of the coil 11 is transformed into the heat emitted from the transistor 7 by the drop in voltage on the transistor 7, and radiated rapidly from the cooling piece of said transistor 7. Through these procedures, the generation of an arc can be suppressed to the minimum, thereby enabling to reduce the capacity of controlling contact point as well as to shorten the breaking time of the titled device.

37. 发明专利

JPS5821900A COOLER FOR ELECTRONIC PART 失效
公开(公告)号：JPS5821900A
公开(公告)日：1983-02-08
申请号：JP12078981
申请日：1981-08-03
申请人： HITACHI LTD
发明人： YODA MIKIO , SHIBATA EKIZOU , OZAKA AKIRA
IPC分类号： H05K7/20

38. 发明专利

JPS5821899A COOLER FOR ELECTRONIC PART 失效
公开(公告)号：JPS5821899A
公开(公告)日：1983-02-08
申请号：JP12078781
申请日：1981-08-03
申请人： HITACHI LTD
发明人： YODA MIKIO , OZAKA AKIRA , SHIBATA EKIZOU , SHINOHARA YASUSHI , OTOKIDA MITSUO , ABE AKISHI
IPC分类号： H01C1/084 , H01C1/08 , H05K7/20

39. 发明专利

JPS5553813A MOVABLE CONTACTOR 失效
公开(公告)号：JPS5553813A
公开(公告)日：1980-04-19
申请号：JP12738678
申请日：1978-10-18
申请人： HITACHI LTD
发明人： OZAKA AKIRA , YODA MIKIO , CHIBA MASASHI
IPC分类号： H01H1/62 , H01H9/30 , H01H9/36

40. 发明专利

JPS554803A ELECTROMAGNETIC CONTACTOR 失效
公开(公告)号：JPS554803A
公开(公告)日：1980-01-14
申请号：JP7655178
申请日：1978-06-26
申请人： HITACHI LTD
发明人： OZAKA AKIRA , YODA MIKIO
IPC分类号： H01H9/46 , H01H9/34 , H01H33/08

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