专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH04349605A SUPERCONDUCTING COIL 失效
公开(公告)号：JPH04349605A
公开(公告)日：1992-12-04
申请号：JP12342491
申请日：1991-05-28
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： TAKAYAMA KUNIHIRO , KAMIYAMA HIROYUKI , KIMURA NOBORU , SAITO MASATOSHI , YAMAUCHI TSUNEHIKO
IPC分类号： H01F6/06 , H01F6/00 , H01F27/32
摘要： PURPOSE:To match spacers provided among superconductor layers radially with each other peripherally in a uniform interval irrespective of the tolerance of the superconductor by interconnecting the spacers with each other at least one portions thereof. CONSTITUTION:In a superconducting coil 1 where there are provided a superconductor 2 wound by a plurality of times and insulating spacers 3 in a predetermined interval among layers of the superconductor 2, the spacers 3 are interconnected with each other at least one portions thereof. For example, interlayer spacers 3 composed of insulating piece-shaped spacers 3a and a tape- shaped connection member 3b disposed on a cooling passage are arranged radially among the superconductor layers 2 in a uniform interval peripherally.

2. 发明专利

JPH03181885A ELECTROMAGNETIC COIL FOR NUCLEAR FUSION APPARATUS 失效
公开(公告)号：JPH03181885A
公开(公告)日：1991-08-07
申请号：JP32220289
申请日：1989-12-12
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： TAKAYAMA KUNIHIRO , KAMIYA HIROYUKI , YAMAUCHI TSUNEHIKO , SAITO MASATOSHI
IPC分类号： G21B1/11 , G21B1/00 , H01F5/00
摘要： PURPOSE:To enable increase of rigidity without enlarging the section of a conductor, by providing an inside coil and an outside coil which are disposed in proximity to each other in the radial direction. CONSTITUTION:When electricity is made to flow through a feeding part 7A and a discharging part 7B of a poloidal field coil 1, the outer peripheral side of an inside coil 1A turns to be of high temperature and the inner peripheral side thereof to be of low temperature by a cooling operation of a cooling duct 4A provided on the outer peripheral side thereof, while the inner peripheral side of an outside coil 1B turns to be of high temperature and the outer peripheral side thereof to be of low temperature by the cooling operation of a cooling duct 4B provided on the outer peripheral side thereof. As the result, a difference in thermal elongation in the circumferential and radial directions occurs in the coils 1A and 1B. Even when the coils 1A and 1B expand by heat, the outer periphery of the coil 1A and the inner periphery of the coil 1B are not separated from each other. At the same time, a tensile force is given to a bind wire 5 by the thermal elongation in the radial direction of each coil, the two coils are made to approach each other as a counterforce thereof, a compressive force is applied to a packing 2 and thus strong integration is attained. In this case, the rigidity is larger than that in the case when the coils 1A and 1B are disposed separately.

3. 发明专利

JPS63249440A NEUTRAL RING FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS63249440A
公开(公告)日：1988-10-17
申请号：JP8292587
申请日：1987-04-06
申请人： HITACHI LTD , HITACHI NUCLEAR ENG
发明人： GOTO TSUTOMU , FUSE RYUSAKU , SAITO MASATOSHI , YAMAUCHI TSUNEHIKO
IPC分类号： H02K3/51
摘要： PURPOSE:To eliminate unevenness around a neutral ring and reduce windage loss by embedding the neutral ring into an annular rigid body. CONSTITUTION:A neutral ring 6 is embedded into an annular rigid body 9 to support the centrifugal force of the neutral ring 6 by the annular rigid body. In this case, the exposed part of the surface of the neutral ring 6 is reduced and the outer surface of the annular rigid body 9 is smoothed. According to this method, unevenness around the annular rigid body 9 and the neutral ring 6 is reduced and the windage loss of the title rotary electric machine may be reduced.

4. 发明专利

JP2009247083A Power generator stator 有权
标题翻译：发电机定子
公开(公告)号：JP2009247083A
公开(公告)日：2009-10-22
申请号：JP2008089156
申请日：2008-03-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAYASAKA YASUSHI , GOTO FUMIHIKO , ISHIHARA ATSUSHI , SAITO MASATOSHI
IPC分类号： H02K9/19
摘要： PROBLEM TO BE SOLVED: To solve the following problem: when no measure against vibration is taken in a cooling pipe connecting a winding coil and a liquid inlet header and a liquid outlet header; and when the cooling pipe resonates and vibrates with large amplitude, high stress is produced in not only the cooling pipe but also the headers and winding coil to which the cooling pipe is attached and the lives of these points are shortened.
SOLUTION: In a power generator stator, a cooling pipe for guiding cooling liquid to a winding coil includes a flexible line or a flexible line 10b having a curvature and its end portions have higher rigidity than the flexible line. The natural frequency of the cooling pipe is set to a value higher than an electromagnetic exciting frequency by increasing the rigidity of the end portions of the cooling pipe. This makes it possible to prevent the cooling pipe from resonating and high stress from being produced in the cooling pipe or its attachment portions.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了解决以下问题：在连接绕组线圈和液体入口集管和液体出口集管的冷却管中不采取抗振措施的情况下，并且当冷却管以大振幅共振和振动时，不仅冷却管，而且冷却管附接的集管和绕组线圈也产生高应力，并且这些点的寿命缩短。解决方案：在发电机定子中，用于将冷却液引导到绕组线圈的冷却管包括柔性线或具有曲率的柔性线10b，并且其端部具有比柔性线更高的刚性。通过提高冷却管的端部的刚性，将冷却管的固有频率设定为高于电磁激励频率的值。这使得可以防止冷却管在冷却管或其附接部分中产生谐振和高应力。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JPH06325584A SEMICONDUCTOR STORAGE DEVICE 失效
公开(公告)号：JPH06325584A
公开(公告)日：1994-11-25
申请号：JP13271193
申请日：1993-05-11
申请人： HITACHI LTD , HITACHI TOBU SEMICONDUCTOR LTD
发明人： SAITO MASATOSHI , NAKAMURA YASUHIRO , IZAWA KAZUTO , MORI YASUKI , WADA TAKESHI
IPC分类号： G11C17/00 , G11C16/02 , G11C16/06 , H01L21/8247 , H01L29/788 , H01L29/792
摘要： PURPOSE:To expand an operating margin, and to increase the speed of an access time by substantially equalizing the potential of erase voltage supplied to sources bonded in common in cells constituting each memory block while successively reducing the number of erase pulses in full erase modes from the memory blocks. CONSTITUTION:When holding information is written to two-layer gate structure type memory cells MC, positive potential having a large absolute value is applied to control gates and positive voltage at intermediate potential to drains respectively, and hot electrons generated by an avalanche breakdown are injected into floating gates. When the holding information of the cells MC is erased, large positive potential is applied to sources, and the holding information is erased by extracting electrons stored in the floating gates by a tunnel phenomenon to the source sides. The number of erase pulses supplied on full erase modes is reduced successively from memory blocks adjacent to bonding pads for feeding erase voltage at that time.

6. 发明专利

JPH11355990A SUPPLYING/DELIVERING LIQUID CASE AND ROTATING MACHINE 失效
公开(公告)号：JPH11355990A
公开(公告)日：1999-12-24
申请号：JP16173698
申请日：1998-06-10
申请人： HITACHI LTD
发明人： ASAKAWA HIDEAKI , SAITO MASATOSHI , SHIBATA TAKASHI , KAMIYA HIROYUKI , GOTO KAZUO
IPC分类号： H02K3/22
摘要： PROBLEM TO BE SOLVED: To facilitate brazing and maintenance work by setting respective dimensions, so that the corner of an electric winding end may be visually inspected on a diagonal line from the corner of the second opening when the electric winding is fitted into the first opening. SOLUTION: When the respective dimensions of a supplying/delivering liquid case 4 are defined as follows: the radius of the first opening 4a is D1 , the radius of a communicating hole 4b is D2 , the length between the side end of the communicating hole 4b of the first opening 4a and the end part of a winding conductor 3 mounted on the second opening 4c is L1 , the depth of the first opening 4a is L2 , and the height of the winding conductor 3 from a center shaft is H, the respective dimensions are determined so as to establish relationship as [(D1 -D2 )/L2 ]

7. 发明专利

JPS6477439A HEXAGONAL DOUBLE LAYER WINDING COILS FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS6477439A
公开(公告)日：1989-03-23
申请号：JP22958287
申请日：1987-09-16
申请人： HITACHI LTD
发明人： SAITO MASATOSHI , SUDO ITARU
IPC分类号： H02K3/04
摘要： PURPOSE:To improve corona resistance without extending coil axial length, by changing the length of straight line sections in turns projecting from the iron core of in-phase coils. CONSTITUTION:Hexagonal double layer winding coils of a rotary electric machine is built into an iron core 3. Clearances b1 and b2 are provided between each coil. The length of straight line sections projecting from the core 3 is caused to change in turns in a1-a3 and likewise, where the clearance b1 between in-phase coils is narrowed while the clearance b2 between coils of different phases is widened.

8. 发明专利

JPS6395833A ARMATURE CORE FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS6395833A
公开(公告)日：1988-04-26
申请号：JP24132486
申请日：1986-10-13
申请人： HITACHI LTD
发明人： FUSE RYUSAKU , SUDO ITARU , GOTO TSUTOMU , SAITO MASATOSHI
IPC分类号： H02K3/12
摘要： PURPOSE:To enable a magnetic flux to pass easily through an armature for a rotary electric machine by letting an angle of each side face of a groove for a wedge to be driven into be 70 deg.+ or -2 deg. to the base of said groove. CONSTITUTION:An armature coil 4 is built in a slot of an armature core 1 constituted by accumulation of thin iron plates and then is fixed by a wedge 3. In this case, an angle theta of each side face of a groove 2 for the wedge to be inserted into is 70 deg.+ or -2 deg. to the base of said groove. Thus, a dimension G of a passage of magnetic flux can be enlarged without an increase of the outer diameter of said armature and a rotary electric machine can be miniaturized while an optimal magnetic flux density is ensured.

9. 发明专利

JPH03293587A NUCLEAR FUSION APPARATUS 失效
公开(公告)号：JPH03293587A
公开(公告)日：1991-12-25
申请号：JP9403690
申请日：1990-04-11
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： KAMIYA HIROYUKI , YAMAUCHI TSUNEHIKO , TAKAYAMA KUNIHIRO , SAITO MASATOSHI , IKEDA TOSHIAKI , ANDO TOSHIRO
IPC分类号： G21B1/11 , G21B1/00
摘要： PURPOSE:To support and keep the healthiness of an one-turn coil by transmitting hoop force to an auxiliary member and allowing only the force due to a troidal magnetic field coil and a coil current to act on the current feed and discharge parts of the coil. CONSTITUTION:A plate-shaped auxiliary member 14 is connected to the part adjacent to the current feed and discharge parts 12a, 12b of an one-turn coil 11 through engaging means 13a, 13b. Therefore, the hoop force (tensile force) of the coil 11 is transmitted to the member 14 by a coil ring part 11a and only the force F due to a troidal magnetic field BT and a coil current I acts on the current feed and discharge parts 12a, 12b. This force FH is generated on the same axis and the dielectric breakdown of the current feed and discharge parts is prevented. Since no hoop force acts on the current feed and discharge parts, both parts can be superposed in a vertical direction and a mismatching magnetic field is reduced and the healthy one-turn coil can be provided.

10. 发明专利

JPS63249439A LEAD WIRE SUPPORTER FOR ROTOR OF ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS63249439A
公开(公告)日：1988-10-17
申请号：JP7742987
申请日：1987-04-01
申请人： HITACHI LTD
发明人： SAITO MASATOSHI , GOTO TSUTOMU
IPC分类号： H02K3/51
摘要： PURPOSE:To increase strength per one place of a supporter, by integrating a lead wire and a retaining metal into an integrated structure. CONSTITUTION:The lead wires 1a, 1b of the rotor of a rotary electric machine are pushed against a pedestal 4 by a pushing metal 5; however, both of the lead wires 1a, 1b have a tendency to be deviated to the direction of an outer diameter by the centrifugal force of the lead wires 1a, 1b. In order to prevent the deviation, retaining metals 2a are projected from the lead wires 1a, 1b so as to abut against the pedestal 4 of the lead wires through an insulating piece 3. In this case, the retaining metal 2a, integrated with the lead wire 1a, is abutted against the pedestal 4 of the lead wire through the insulating piece 3. The retaining metal 2a, integrated with the lead wire 1b, is connected by silver solder or the like. According to this method, the strength per one place of a supporter, or strength against the centrifugal force, may be increased.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式