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11. 发明专利

JPS56147460A RECTIFIER 失效
公开(公告)号：JPS56147460A
公开(公告)日：1981-11-16
申请号：JP5029380
申请日：1980-04-18
申请人： HITACHI LTD
发明人： YAMADA SHIGEKI , NAOI KEIGO , SAITOU AKIHIRO
IPC分类号： H01L23/36 , H01L23/049 , H01L25/07
摘要： PURPOSE:To obtain a rectifier which is readily manufactured and low in price, by a method wherein a dish-shaped recess is formed in a cooling fin, a hole is bored in the recess bottom, a metal body is inserted through the hole and caulked, and a rectifying element is soldered to the projecting surface inside the recess. CONSTITUTION:A dish-shaped recess 2 is formed in a cooling fin, a hole 13 are bored in the center of the recess bottom, and a connecting metal body is inserted through the hole. The projecting portions at both ends of the metal body are caulked, and on the projecting surface inside the recess 2, an Si element 3 and a connecting lead 4 piled up and soldered. Then, the recess 2 is filled with resin 5. As the fin, Al is employed, and as the connecting metal body, an Ni-plated material of iron or copper series is employed. By said constitution, the restriction by solderability is removed from the material for the cooling fin. Accordingly, it is possible to use a material advantageous in respect of cooling capacity, weight, price and the like, and manufacture is also facilitated, so that the cost lowers.

12. 发明专利

JPS56107745A STORAGE BATTERY CHARGER 失效
公开(公告)号：JPS56107745A
公开(公告)日：1981-08-26
申请号：JP678980
申请日：1980-01-25
申请人： HITACHI LTD
发明人： MASUNO KEIICHI , SAITOU AKIHIRO , NAOI KEIGO
IPC分类号： H02J7/14

13. 发明专利

JPS5574324A CHARGING GENERATOR VOLTAGE CONTROLLER 失效
公开(公告)号：JPS5574324A
公开(公告)日：1980-06-04
申请号：JP14541278
申请日：1978-11-27
申请人： HITACHI LTD
发明人： KOIKE HIROSHI , NAOI KEIGO , SAITOU AKIHIRO , KOBAYASHI KUNIO
IPC分类号： H02J7/24 , H02J7/22

14. 发明专利

JPS5524465A RECTIFIER 失效
公开(公告)号：JPS5524465A
公开(公告)日：1980-02-21
申请号：JP9725278
申请日：1978-08-11
申请人： HITACHI LTD
发明人： SAITOU AKIHIRO , HIRATSUKA TOMOYOSHI , YAMADA SHIGEKI , NAOI KEIGO
IPC分类号： H01L25/07 , H01L23/48 , H01L25/04
摘要： PURPOSE:For raising the vibration resistance of connections, to fit on the lead portion of a rectifier element the terminal made of an elastic material so that compressive force may work. CONSTITUTION:A rectifier element 16 is connected to the recess portion 15 of a cooling fin 1 by solder 3. A lead wire 17 is connected by solder 3 to the opposite side to be connected with said cooling fin 1 of said rectifier element 16. A projecting portion 18 is provided in the vicinity of the tip of said lead wire 17, and said terminal 19 is engaged with, and fastened by solder on, said projecting portion 18. Said terminal 19 employing a highly conductive material having spring characteristic is attached so that the spring force thereof may constantly work in such a direction as to compress said lead wire 17. Consequently, the tensile strength which causes the failure of the connection of said element 16 and said lead wire 17 does not work even through said cooling fin 1 transfers apart from said terminal 19 due to vibration.

15. 发明专利

JPS5240714A CONTROLLING DEVICE FOR AC GENERATOR FOR VEHICLE 失效
公开(公告)号：JPS5240714A
公开(公告)日：1977-03-29
申请号：JP11704975
申请日：1975-09-27
申请人： HITACHI LTD
发明人： NAOI KEIGO , KOIKE HIROSHI
IPC分类号： H02J7/24 , H02P9/30
摘要： PURPOSE:Controlling equipment of AC generator for vehicle composed of simple circuit constitution without the usage of auxiliary diodes.

16. 发明专利

JPS61247237A TWO-BATTERY CHARGER FOR AUTOMOBILE 失效
公开(公告)号：JPS61247237A
公开(公告)日：1986-11-04
申请号：JP8640485
申请日：1985-04-24
申请人： HITACHI LTD
发明人： NAOI KEIGO
IPC分类号： H02J7/16

17. 发明专利

JPS6135126A Controller of generator 失效
标题翻译：发电机控制器
公开(公告)号：JPS6135126A
公开(公告)日：1986-02-19
申请号：JP15371984
申请日：1984-07-24
申请人： Hitachi Ltd
发明人： NAOI KEIGO
IPC分类号： H02J7/24 , H02J7/14 , H02P9/30
CPC分类号： H02J7/1453

18. 发明专利

JPS58148640A AUTOMOTIVE AC GENERATOR 失效
公开(公告)号：JPS58148640A
公开(公告)日：1983-09-03
申请号：JP2880182
申请日：1982-02-26
申请人： HITACHI LTD
发明人： SAITOU AKIHIRO , NAOI KEIGO , HORI SADAKAZU , HONDA YOSHIAKI
IPC分类号： H02K9/06 , H02K11/04 , H02K19/36
摘要： PURPOSE:To increase the cooling air amount and to increase the output of a generator by providing centrifugal fans at both sides of a rotor, and fixing a fan guide at a clamping bolt for clamping a rectifier mounted on a rear bracket. CONSTITUTION:Centrifugal fans 8a, 8b are fixed by a projection welding or the like to both sides of rotor cores 7a, 7b the first fan 8a intakes cooling air by its rotation from a vent hole 1a for intaking the cooling air of a front side bracket 1 to cool a stator coil 3b and to exhaust it from a vent hole 1b for exhausting it as an arrow A. The second fan 8b intakes cooling air from a vent hole 2a for cooling and intaking a rear bracket 2 to cool an IC regulator 10, and a 3-phase full-wave rectifier 11 and to exhaust from the vent hole for exhausting while cooling the coil 3b as arrows B, C. In this manner, the cooling air flow rate can be increased, thereby increasing the output of a generator.

19. 发明专利

JPS5848793A GENERATOR BUILT-IN TYPE VACUUM PUMP 失效
公开(公告)号：JPS5848793A
公开(公告)日：1983-03-22
申请号：JP14615281
申请日：1981-09-18
申请人： HITACHI LTD
发明人： KURIHASHI YASUTAKA , NAOI KEIGO , YAMADA SHIGEKI
IPC分类号： F04C23/00 , F01C21/10 , F04C18/344 , F16M1/04
摘要： PURPOSE:To reduce the weight thereof, work the casing thereof in one chuck and improve the productivity and accuracy thereof by a method wherein the vacuum pump is formed by fitting a thin cylindrical housing equipped with an eccentric flange into the casing coaxial with the rotary shaft thereof. CONSTITUTION:The vacuum pump 15 is formed by fitting the thin cylindrical housing 23 equipped with the eccentric flange 31 into the casing 22 provided integrally with a rear bracket 17 coaxial with the rotary shaft 20. According to this method, the weight of the housing 23 including the casing 22 may be reduced, further, the housing 23 may be formed by planking work utilizing the technics of plastic working, and whereby the puoducibility thereof may be improved remarkably. At the same time, the casing 22 is coaxial with the rotary shaft, therefore, it may be worked in one chuck and the productivity and the accuracy thereof may be improved.

20. 发明专利

JPS5713953A THREE-PHASE AC GENERATOR FOR BICYCLE 失效
公开(公告)号：JPS5713953A
公开(公告)日：1982-01-25
申请号：JP8523480
申请日：1980-06-25
申请人： HITACHI LTD
发明人： NAOI KEIGO
IPC分类号： H02K19/22 , H02K1/16 , H02K3/28
摘要： PURPOSE:To contrive the improvement of generating efficiency and low noise by providing slots in a stator core, the depth thereof are set according to the mounting order of mounted generating coils for each pole. CONSTITUTION:In each pole of each slot 2B1-2B36 in a stator core 1, slots 2B1, 2B4... housing the first mounted U-phase generating coil 3U are formed at the deepest radius of D2 from the center of the iron core and slots 2B2, 2B5... housing the third mounted V-phase generating coil 3V are formed at the shallowest radius of D4 from the center of the iron core. Furthermore, slots 2B3, 2B6... housing the second mounted W-phase generating coil 3W are formed at the middle depth of radius D3 from the center of the iron core. In this way, the gap at the base part of the slots generated at the shade of the end coil sections of the generating coils can be reduced and the improvement of generating efficiency can be realized.

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