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1. 发明专利

DE602005012461D1 未知
公开(公告)号：DE602005012461D1
公开(公告)日：2009-03-12
申请号：DE602005012461
申请日：2005-06-23
申请人： HITACHI LTD , HITACHI MEDICAL CORP , HITACHI ENG CO LTD
发明人： SUZUKI KUNIHITO , MOTOSHIROMIZU HIROFUMI , TAKAYAMA KUNIHIRO , WADAYAMA YOSHIHIDE , KUROME AKIRA , HOSHINO SHIN
IPC分类号： G01R33/385 , A61B5/055 , G01R33/38 , G01R33/3815 , G01V3/00

2. 发明专利

JPH08196048A STATOR CORE IN ELECTRIC ROTATING MACHINE 失效
公开(公告)号：JPH08196048A
公开(公告)日：1996-07-30
申请号：JP1973095
申请日：1995-01-12
申请人： HITACHI LTD
发明人： TAKAYAMA KUNIHIRO , KAMIYA HIROYUKI , NAKAMURA FUMIO
IPC分类号： H02K1/12 , H02K1/18
摘要： PURPOSE: To constantly hold bearing force above a certain level and relax thermal stress by forming a stress relaxing slit opposite to a key tooth on the stator side as a space of relaxation when the stator core is mounted on the key tooth. CONSTITUTION: A key tooth 2 has a tab tail 2a at an inside top. A fan-shaped thin-plate stator core 1 has a stress relaxing slit 1b opposite to the key tooth 2 on the stator-core side for fear of inner stress generated when the stator core 1 is mounted on the key tooth 2 with a very small interference space. The slit 1b is slanted to a radial direction of the stator core 1 to improve an effect of stress relaxation. At the same time, the slit 1b generates spring force when the slit 1b of the stator core 1 is deformed by the interference space. Then, there is no gap between the key tooth 2 and the stator core 1, and bearing force above a certain level can be ensured at the starting, stationary operation, and stopping time, while thermal stress can be reduced.

3. 发明专利

JPH0442893B2 失效
公开(公告)号：JPH0442893B2
公开(公告)日：1992-07-14
申请号：JP21805486
申请日：1986-09-18
申请人： HITACHI LTD
发明人： SHIBATA TAKASHI , KAMINAGA KENJIRO , HARUTA TAKASHI , WATANABE YASUYOSHI , TAKAYAMA KUNIHIRO
IPC分类号： H02K3/38 , H02K3/51 , H02K3/52

4. 发明专利

JPS6271444A INTERPOLE CONNECTING WIRE FOR FIELD WINDING 失效
公开(公告)号：JPS6271444A
公开(公告)日：1987-04-02
申请号：JP20999785
申请日：1985-09-25
申请人： HITACHI LTD
发明人： TAKAYAMA KUNIHIRO , KAMINAGA KENJIRO , HARUTA TAKASHI , SHIBATA TAKASHI , WATANABE YASUYOSHI
IPC分类号： H02K3/51 , H02K3/04
摘要： PURPOSE:To prevent the fatigue failure of a field winding by fitting a trapezoidal interpole connecting wire, the inner diametral side thereof is opened, to an interpole connecting section. CONSTITUTION:Projections directed toward a clearance between field windings 4a, 4b along the axial direction are shaped to uppermost turns in field windings 4a, 4b protruded from a body. The projections are graded so as to be protruded with a proceeding toward the outer diametral side, and the length of the projections is shaped so that not less than one half a clearance between the field windings 4a, 4b on assembly is maximized. A trapeoidal interpole connecting wire 1, which matches with the gradients of the noses of the projections and the outer diametral side thereof is reduced, is arranged and fitted in a trapexoidal space formed at the noses of the projections. An insulator 3 is inserted into a clearance between the field windings 4a, 4b. A spring 2 is disposed between the interpole connecting wire 1 and the insulator 3 in order to push the interpole connecting wire 1 against the outer diametral side.

5. 发明专利

JP2009004693A Superconductive magnet device and magnetic resonance imaging device 有权
标题翻译：超导磁体装置和磁共振成像装置
公开(公告)号：JP2009004693A
公开(公告)日：2009-01-08
申请号：JP2007166317
申请日：2007-06-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOGA YASUNORI , WATANABE HIROYUKI , TAKAYAMA KUNIHIRO , YAMAMOTO TSUTOMU
IPC分类号： H01F6/00 , A61B5/055 , H01F6/04 , H01F7/20
摘要： PROBLEM TO BE SOLVED: To provide a reliable superconductive magnet device and a magnetic resonance imaging device, in which structure is simple, and a persistent current of a superconductive coil can be stably retained for the long term. SOLUTION: A superconductive magnet device 1 includes: a pair of coil containers 4 and 4 which accommodate a circularly-shaped superconductive coil 2 with a cooling medium; a pair of vacuum containers 1A and 1B which accommodate coil containers 4 and 4, respectively; a connecting tube 1C which supports the vacuum containers 1A and 1B, while opposing them to each other in the vertical direction, using a space between the vacuum containers 1A and 1B as a magnetic field space; a superconductive wire 2A which is connected between the superconductive coil 2 and 2 of a pair of the coil containers 1A and 1B through the connecting tube 1C; and a permanent current switch 7 which is connected to the superconductive wire 2A and passes permanent current to the superconductive coil 2. The permanent current switch 7 is arranged in the connecting tube 1C. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供可靠的超导磁体装置和磁共振成像装置，其结构简单，并且可以长期稳定地保持超导线圈的持续电流。解决方案：超导磁体装置1包括：一对线圈容器4和4，其容纳具有冷却介质的圆形超导线圈2; 分别容纳线圈容器4和4的一对真空容器1A和1B; 连接管1C，其使用真空容器1A和1B之间的空间作为磁场空间来支撑真空容器1A和1B，同时在垂直方向上彼此相对; 超导线2A，其通过连接管1C连接在一对线圈容器1A和1B的超导线圈2和2之间; 以及永磁电流开关7，其连接到超导线2A并将永久电流通过至超导线圈2.永磁电流开关7设置在连接管1C中。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008029441A SUPERCONDUCTING MAGNET APPARATUS AND MAGNETIC RESONANCE IMAGING APPARATUS 审中-公开
公开(公告)号：JP2008029441A
公开(公告)日：2008-02-14
申请号：JP2006204105
申请日：2006-07-27
申请人： HITACHI LTD , HITACHI ENG SERVICE
发明人： CHIBA TOMOO , WATANABE HIROYUKI , TAKAYAMA KUNIHIRO , KAWAMURA ATSUSHI , ABE MITSUJI , NAKAYAMA TAKESHI , HAMADATE YOSHIO
IPC分类号： A61B5/055 , G01R33/3815 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To provide a superconducting magnet apparatus obtaining high magnetic field uniformity without increasing the volume of a magnetic material even against disturbances. SOLUTION: This superconducting magnet apparatus 2 includes a circular superconducting coil 11 which generates a magnetic field; a coil vessel 9 which contains the superconducting coil 11 together with refrigerant 14; a thermal shield 8 arranged so as to surround the coil vessel 9; a vacuum vessel 3 with inside kept vacuum which surrounds the thermal-shield 8; and magnetic materials 12 and 13 for correcting the magnetic field which are arranged in the vacuum vessel 3; wherein the magnetic materials 12 and 13 are supported by a heat-insulation support medium 15 fixed to the coil vessel 9. COPYRIGHT: (C)2008,JPO&INPIT

7. 发明专利

JPS631343A FLUID LEAKAGE MONITOR 失效
公开(公告)号：JPS631343A
公开(公告)日：1988-01-06
申请号：JP14010186
申请日：1986-06-18
申请人： HITACHI LTD
发明人： HARUTA TAKASHI , KAMINAGA KENJIRO , SHIBATA TAKASHI , WATANABE YASUYOSHI , TAKAYAMA KUNIHIRO
IPC分类号： H02K9/19 , H02K9/24
摘要： PURPOSE:To find the occurrence of a harmful defect, by sensing the wave motion caused when the cooling gas becomes bubble that invaded from a harmful defect occurring in water system. CONSTITUTION:On the outside of a coil 1 extended from an iron core 6 are arranged a mother pipe 2 on the high pressure side and a mother pipe 3 on the low pressure side. Each mother pipe 2 and 3 and a coil 1 are connected by a tubular substance 4, of which a water system is constituted. The cooling water flows from the mother pipe 2 on the high pressure side to the coil 1 and then to the mother pipe 3 on the low pressure side. Outside the water system the cooling gas to cool the coil 1 from surface is forced to circulate by the pressure higher than the pressure of cooling water. A pressure sensitive element 5, that is a monitor, is provided facing the water flow. In this constitution, by sensing the wave motion caused when the cooling gas turns to bubbles which has invaded through harmful defects occurring in the water system, the occurrence of a harmful defect can be found.

8. 发明专利

JPS62171426A ROTOR FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS62171426A
公开(公告)日：1987-07-28
申请号：JP1019186
申请日：1986-01-22
申请人： HITACHI LTD
发明人： WATANABE YASUYOSHI , KAMINAGA KENJIRO , HARUTA TAKASHI , SHIBATA TAKASHI , TAKAYAMA KUNIHIRO
IPC分类号： H02K3/34 , H02K3/48
摘要： PURPOSE:To prevent a wedge from being broken through the shoulder section of the wedge under high speed rotation, by arranging corrugated plate springs in compressed shapes, on the both side walls of a field coil. CONSTITUTION:A rotor is provided with a slot 1 set on the outer periphery of a rotor shell section, a field coil 2 contained in the slot 1, and a wedge 3 inserted into the opening section of the slot 1. The outer periphery of the field coil 2 is provided with a slot insulation 4, and flat type conductors 5a, 5b are used for a conductor 5. On the both side walls of the field coil 2, corrugated plate springs 9 are arranged in compressed shapes. By this organization, surface pressure applied to the wedge 3 by the field coil 2 during the high speed rotation of the rotor is uniformed, and the rotor of a rotating electric machine for enabling the wedge 3 to be prevented from being broken through the shoulder section 3a of the wedge under high speed rotation can be obtained.

9. 发明专利

JPH10112947A ROTOR OF ROTATING ELECTRIC MACHINE 失效
公开(公告)号：JPH10112947A
公开(公告)日：1998-04-28
申请号：JP26403596
申请日：1996-10-04
申请人： HITACHI LTD
发明人： TAKAYAMA KUNIHIRO , SHIBATA TAKASHI , TAMAKI TAKASHI
IPC分类号： H02K3/24
摘要： PROBLEM TO BE SOLVED: To improve heat conductivity and control the average temperature rise of a coil end part, by providing a shim piece with a projection in rotational direction, and blowing up refrigerant gas at high speed from inside diameter side to outside diameter side thereby diffusing the discharged refrigerant gas compulsively. SOLUTION: Refrigerant gas is collided against a projection 3B and blown up at a high speed of several meters/sec in diametrical direction, making use of the peripheral velocity obtained by the rotation of a rotor by providing a shim piece 3 to keep the spacing between windings 2 with a projection 3B projecting from the inmost diametrical part of the winding, whereby the diffusion of refrigerant gas 4 is performed. Moreover, when the winding 2 is viewed from axial direction, a small vortex 4A is made by the chamfering of the winding 2 and the projection of the insulator between the windings, so the refrigerant gas is diffused further. Moreover, this rotor is provided with a tilt hole 3A, whereby the refrigerant gas is led to the rear, and the peripheral velocity can be made use of. Hereby, the heat conductivity improves, and the average temperature rise of the coil end part can be controlled.

10. 发明专利

JPH09322454A ROTOR OF ELECTRIC ROTATING MACHINE 失效
公开(公告)号：JPH09322454A
公开(公告)日：1997-12-12
申请号：JP13845596
申请日：1996-05-31
申请人： HITACHI LTD
发明人： TAKAYAMA KUNIHIRO , SHIBATA TAKASHI , MIYAGAWA IEMICHI , MORI HIDEAKI
IPC分类号： H02K3/24 , H02K9/08
摘要： PROBLEM TO BE SOLVED: To inhibit temperature rise at a coil end portion by providing a second cooling medium gas passage for communicating with a portion having a negative pressure in the cooling medium gas passage and a portion having a positive pressure and also reducing loss due to passing of the cooling medium gas. SOLUTION: A spacer 3 is provided in axial direction and peripheral direction in a gap between coil ends 2a. The gap piece 3 comprises a coil support 3a quickening the bend of a cooling gas medium, a cooling gas medium passage 3b, a cooling gas inducing gutter 3c (a second gas passage) and a commutating gutter 3d for quickening the diffusion of a cooling gas medium. The cooling gas induction gutter 3c is a gutter for more easily pulling the cooling gas medium. By pulling in this cooling gas induction gutter 3c up to a high speed current band, the vortex flow of the cooling gas medium previously turned is pulled back to the high speed flow side, and an effect of greatly increasing the cooling area can be obtained. By doing this, the passing loss of the cooling gas medium becomes smaller and the temperature rise of at the coil end portion 2a can be inhibited.

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