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41. 发明专利

JPH11308833A ELEVATOR USING PERMANENT-MAGNET SYNCHRONOUS MOTOR 失效
公开(公告)号：JPH11308833A
公开(公告)日：1999-11-05
申请号：JP11302298
申请日：1998-04-23
申请人： HITACHI LTD
发明人： NIHEI HIDEKI , NAKADA TAKANORI , HINO TOKUAKI , MITSUNE SHUNSUKE , ARAHORI NOBORU , NAGASE HIROSHI
IPC分类号： B66B11/08 , H02K21/22
摘要： PROBLEM TO BE SOLVED: To prevent uncomfortable feeling from being given to passengers by vibration, by selecting the numbers of poles and slots of a permanent-magnet synchronous motor, so that the frequencies of its torque ripple and cogging torque may coincide with a mechanical resonance frequency, at a speed sufficiently lower than the vicinity of its rated speed. SOLUTION: In a permanent-magnet synchronous motor wherein coils 2 are wound on a stator 1 and permanent magnets 4 are fixed to a rotor 3, the number p of poles of the permanent-magnet synchronous motor is selected so that the frequency of its torque ripple generated at a speed approximately equal to or lower than half of its rated speed may coincide with the mechanical resonance frequency of an elevator. And the number m of slots is selected for this number p of poles so that the frequency of a cogging torque may not coincide with the mechanical resonance frequency at a speed near the rated speed. Consequently, it becomes possible to prevent continuous vibration which is generated at the time of running at time rated speed and felt extremely uncomfortable by passengers.

42. 发明专利

JPH11220847A PERMANENT-MAGNET MOTOR AND ELEVATOR DEVICE USING THE SAME 失效
公开(公告)号：JPH11220847A
公开(公告)日：1999-08-10
申请号：JP2175698
申请日：1998-02-03
申请人： HITACHI LTD
发明人： NIHEI HIDEKI , NAKADA TAKANORI , HINO TOKUAKI , KITAMURA MASAJI , ARAHORI NOBORU , NAGASE HIROSHI
IPC分类号： H02K1/22 , H02K1/27 , H02K21/22
摘要： PROBLEM TO BE SOLVED: To divide the permanent magnet of a permanent-magnet motor into belt-like pieces so as to reduce the eddy current loss of the magnet and to make the divided magnet pieces applicable to the externally rotating rotor of the motor by coating the magnet pieces with an insulating material and providing the magnet pieces to the rotor by laminating the magnet pieces upon another against a back yoke piece made of a magnetic material so that their laminated cross sections may be exposed. SOLUTION: Belt-like permanent magnet pieces 1a each having a thickness (t), a width (d), and an outer peripheral section coated with an insulating material, such as the resin, etc., are laminated upon another in the thickness direction, aligned with each other, and fixed to each other against a back yoke 1b. Grooves 1c are formed on the surface, namely, the surface which comes into contact with the magnet pieces 1a of the back yoke 1b. The thickness (t) of each magnet piece 1a is sufficiently small as compared with the width (d) and a laminated permanent magnet with back yoke is constituted of several tens of permanent magnet pieces 1a. Consequently, the efficiency of a motor can be improved by reducing eddy currents on the permanent magnets. In addition, the permanent magnet pieces 1a can be fitted easily to the rectangular back yoke piece 1b and the eddy currents on the back yoke 1b and in a whole rotor can be reduced with the grooves 1c formed on the surface of the back yoke 1b.

43. 发明专利

JPH1179626A HOISTING MACHINE FOR ELEVATOR 失效
公开(公告)号：JPH1179626A
公开(公告)日：1999-03-23
申请号：JP23969797
申请日：1997-09-04
申请人： HITACHI LTD
发明人： NAKADA TAKANORI , TANAE SHUNICHI , NAGASE HIROSHI , NEMOTO MITSUHIRO , ARAHORI NOBORU , NIHEI HIDEKI , HINO TOKUAKI
IPC分类号： B66B11/08
摘要： PROBLEM TO BE SOLVED: To provide a hoisting machine for an elevator prevented from becoming long in axial length and being increased in weight by providing a fixed frame arranged to close the open side of an external rotation type rotor with one side face opened, while supporting a stator provided opposedly to the external rotation type rotor. SOLUTION: One end of a rotor iron core 3 with an axially extended cylindrical permanent magnet 2 attached to the inner surface is integrated with a rotary shaft 6 through a disc-like rotor frame 1, and the rotary shaft 6 is direct- coupled to a sheave 8. The other axial end of the rotor iron core 3 is opened, and a fixed frame 5 covers up to the end face of the rotor iron core 3 with a minute clearance. A clearance to the rotor frame 1 is therefore formed only at one face of a stator iron core 4 so as to shorten the axial length of a motor. Since the stator core can be directly fitted to the fixed frame 5, a feeder line of a coil 13 can be taken out of the fixed frame 5 so as to dispense with complicated structure of a slip ring, a hollow shaft, and the like.

44. 发明专利

JPH09153408A SUPERCONDUCTING MAGNET DEVICE 失效
公开(公告)号：JPH09153408A
公开(公告)日：1997-06-10
申请号：JP33602395
申请日：1995-11-30
申请人： HITACHI MEDICAL CORP , HITACHI LTD
发明人： TAKESHIMA HIROTAKA , KAWANO HAJIME , KADOKAWA SHIGERU , HINO TOKUAKI
IPC分类号： A61B5/055 , G01R33/38 , G01R33/3815 , G01R33/3875 , G01R33/421 , H01F6/00 , H01F7/20
摘要： PROBLEM TO BE SOLVED: To provide a superconducting magnet device, which is provided with a wide aperture, has little leakage magnetic field, is lightweight and can attain a wide and uniform magnetic field region in a high magnetic field intensity. SOLUTION: A static magnetic field generation source of a superconducting magnet device is constituted of two groups of superconducting coils, which are arranged in opposition to each other holding a uniform magnetic field generating region 21 between them, and each group of the coils consists of a main coil 41 for making a current in a constant direction flow, a bucking coil 42 for making a current in the reverse direction to the coil 41 flow and coils 43 and 44 for correction use for correcting the uniform degree of a magnetic field. The diameters of the coils 41 and 42 are roughly equal, the diameter of the coils 43 and 44 is smaller than that of the coil 41, the amount of a current of the coils 43 and 44 is less than that of the coil 41 and the opposed distance between the main coils 41 is formed shorter than that between the coils 42.

45. 发明专利

JPH06261428A SUPERCONDUCTING MAGNET UNIT FOR MAGNETIC LEVITATION VEHICLE 失效
公开(公告)号：JPH06261428A
公开(公告)日：1994-09-16
申请号：JP4900093
申请日：1993-03-10
申请人： HITACHI LTD
发明人： HINO TOKUAKI , SHIBATA MASAYUKI , MAKI NAOKI , SAITO TOSHIO , KOBAYASHI KOJI
IPC分类号： B60L13/04 , H01F6/02 , H01F7/22
摘要： PURPOSE:To allow levitation running of a superconducting magnetic levitation vehicle without causing collision of the bottom face of truck against a rail at the time of quenching of superconducting coil. CONSTITUTION:A superconducting magnet unit comprises superconducting coils 3a, 3b, 3c, 3d arranged at same interval and superconducting coils 3e, 3f, 3g, 3h arranged symmetrically thereto on the opposite sides thereof and constituted such that the superconducting coil 3h or 3g can be quenched when the superconducting coil 3a or 3b is quenched. This constitution allows sustention of levitation running even if one superconducting coil is quenched during running of a truck mounting a superconducting magnet unit.

46. 发明专利

JP2014125988A Gas turbine for power generation 有权
标题翻译：用于发电的气体涡轮机
公开(公告)号：JP2014125988A
公开(公告)日：2014-07-07
申请号：JP2012283856
申请日：2012-12-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI KAZUO , KUSUMI HISAHIRO , ITO TOMOMICHI , HINO TOKUAKI
IPC分类号： F02C9/36 , F02C7/00 , F02C7/232 , F02C9/00 , F02C9/28 , F02C9/46
CPC分类号： F02C7/228 , F02C7/232 , F02C9/263 , F02C9/28 , F05D2220/76 , F05D2270/091
摘要： PROBLEM TO BE SOLVED: To provide a gas turbine capable of suppressing production of excess energy and reducing an increase in the rotating speed of a shaft.SOLUTION: A gas turbine for power generation having a compressor 103 for compressing air, a combustor 112 producing a combustion gas by mixing and burning the air compressed by the compressor 103 and fuel, a turbine 114 driven by the combustion gas, and a power generator 116 generating power by rotational force of the turbine 114, further includes a fuel pipe 111 for supplying the fuel to the combustor 112, a fuel adjustment valve 108 disposed in the fuel pipe 111, a fuel discharge pipe 203 branched from the fuel pipe 111 between the fuel valve 108 and the combustor 112, and a fuel discharge valve 120 disposed in the fuel discharge pipe 203.
摘要翻译：要解决的问题：提供一种能够抑制过剩能量的产生并减少轴的转速增加的燃气轮机。解决方案：一种用于发电的燃气轮机，具有用于压缩空气的压缩机103，产生通过混合和燃烧由压缩机103和燃料压缩的空气的燃烧气体，由燃烧气体驱动的涡轮114和通过涡轮机114的旋转力产生动力的发电机116，还包括用于供应燃料的燃料管111 设置在燃料管112中的燃料调节阀108，从燃料阀108与燃烧器112之间的燃料配管111分支的燃料排出管203以及配置在燃料排出管 203。

47. 发明专利

JP2013135542A Sintered magnet motor 审中-公开
标题翻译：烧结磁铁电机
公开(公告)号：JP2013135542A
公开(公告)日：2013-07-08
申请号：JP2011284704
申请日：2011-12-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOMURO MATAHIRO , HINO TOKUAKI , SATSU YUICHI
IPC分类号： H02K21/14 , H01F1/057 , H01F1/08 , H02K1/27
CPC分类号： H02K1/02 , H01F41/0293 , H02K1/2766
摘要： PROBLEM TO BE SOLVED: To provide a magnetic flux variable motor with a kind of sintered magnet, capable of increasing a maximum energy product of NdFeB sintered magnet and making residual magnetic flux density variable, which has never been achieved by a conventional technology.SOLUTION: The sintered magnet motor of the present invention includes a rotor, a stator, and a coil, and the rotor is formed with a sintered magnet. The sintered magnet motor controls the residual magnetic flux density of the sintered magnet using a magnetic field developed by a coil current.
摘要翻译：要解决的问题：为了提供一种具有一种烧结磁体的磁通量可变电动机，其能够增加NdFeB烧结磁体的最大能量乘积并使得剩余磁通密度可变，这是从未通过常规技术实现的。解决方案：本发明的烧结磁体电动机包括转子，定子和线圈，转子由烧结磁体形成。烧结磁体电动机使用由线圈电流产生的磁场来控制烧结磁体的剩余磁通密度。

48. 发明专利

JP2010246196A Rotary electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2010246196A
公开(公告)日：2010-10-28
申请号：JP2009089670
申请日：2009-04-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHU KOHIN , MIYAZAKI TAIZO , KOMURA AKIYOSHI , HINO TOKUAKI
IPC分类号： H02K16/02 , B60L11/14 , H02K21/14
CPC分类号： H02K16/02 , B60K6/26 , B60L3/0061 , B60L7/14 , B60L11/14 , B60L15/2009 , B60L2200/26 , B60L2210/40 , B60L2220/14 , B60L2220/50 , B60L2240/421 , B60L2240/423 , H02K21/029 , H02K21/14 , Y02T10/641 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine which reduces an iron loss that arises by a flow of magnetic flux in the direction of a rotating shaft in a state of mechanical weakish field at high-speed rotation. SOLUTION: The electrical rotating machine has a stator core 1 which has an armature coil 2, a rotor which is arranged rotatably across an air gap 7 on the stator core 1 and is halved in the direction of a rotating shaft into a first rotor 4 and a second rotor 5 in each of which magnets for fields different in polarity are alternately arranged in the direction of rotation, a magnetic flux varying mechanism (bearing, stopper, and actuator) which varies the relative axial position of the second rotor 5 to the first rotor 4 of the rotor, and a magnetic resistance layer 9 which is provided circumferentially through the stator core. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在高速旋转的机械弱磁场的状态下降低由磁通量沿着旋转轴的方向产生的铁损的旋转电机。解决方案：旋转电机具有定子铁芯1，其具有电枢线圈2，转子，其可旋转地布置在定子铁芯1上的气隙7上，并且在旋转轴的方向上被分成第一转子4和第二转子5，每个转子5的极性不同的磁铁在旋转方向上交替排列;磁通变化机构（轴承，止动器和致动器），其改变第二转子5的相对轴向位置到转子的第一转子4，以及设置在周向上穿过定子铁芯的磁阻层9。版权所有（C）2011，JPO＆INPIT

49. 发明专利

JP2010213429A Rotary electric machine 审中-公开
标题翻译：旋转电机
公开(公告)号：JP2010213429A
公开(公告)日：2010-09-24
申请号：JP2009055869
申请日：2009-03-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHU KOHIN , MIYAZAKI TAIZO , HINO TOKUAKI
IPC分类号： H02K21/14 , B60L11/14 , H02K7/102 , H02K16/02 , H02P23/00
CPC分类号： Y02T10/641
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine which can operate within a suitably effective magnetic flux range even at the malfunction of a movable mechanism and eliminate unnecessary effective magnetic flux variable space to shorten the moving distance of the movable mechanism for further reduction in size. SOLUTION: The rotary electric machine includes a stator with a winding, a rotor arranged rotatably with respect to the stator through a gap, split into first and second rotors 4, 5 in the direction of a rotary shaft and provided with field magnets of different polarity arranged alternately in the rotating direction, a magnetic flux variable mechanism varying the relative rotary shaft directional position of the second rotor 5 with respect to the first rotor 4, and a failsafe stopper 10 suspending the second rotor 5 when the distance between the first and second rotors 4, 5 exceeds a preset value. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供即使在可移动机构的故障下也可以在适当有效的磁通量范围内操作的旋转电机，并且消除不必要的有效磁通可变空间，以缩短可移动机构的移动距离，以便进一步减小尺寸。解决方案：旋转电机包括具有绕组的定子，通过间隙相对于定子可旋转地布置的转子，沿旋转轴的方向分成第一和第二转子4,5，并设置有磁场磁体具有相对于第一转子4改变第二转子5的相对旋转轴方向位置的磁通量可变机构，以及当第二转子5之间的距离在第二转子5之间的距离时悬挂第二转子5的故障保护止动器10 第一和第二转子4,5超过预设值。版权所有（C）2010，JPO＆INPIT

50. 发明专利

JP2007055816A Elevator device 有权
标题翻译：电梯装置
公开(公告)号：JP2007055816A
公开(公告)日：2007-03-08
申请号：JP2006326424
申请日：2006-12-04
申请人： Hitachi Building Systems Co Ltd , Hitachi Ltd , 株式会社日立ビルシステム , 株式会社日立製作所
发明人： NAKADA TAKANORI , NIHEI HIDEKI , NAGASE HIROSHI , IYODA HIROMI , ARAHORI NOBORU , SHIBUKAWA SUETARO , HINO TOKUAKI , NOKITA AKIHIRO , SAKAI YOSHIO , SHIOHATA HIRONORI
IPC分类号： B66B11/08 , B66B11/04
摘要： PROBLEM TO BE SOLVED: To provide an elevator device allowing easy assembly and disassembly of a hoisting machine.
SOLUTION: The elevator device has the hoisting machine 11 installed in an elevator shaft 1, and an elevator car 3 and a balance weight lifted in the shaft 1 through a main rope 5 wrapped around a sheave 26. The hoisting machine 11 is disposed to locate the cantilever side on the center side of the shaft 1 and to locate the free end side on the wall side of the shaft 1, and the sheave 26 is detachably mounted to the side face of a rotating frame 16 of the hoisting machine 11.
COPYRIGHT: (C)2007,JPO&INPIT

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