专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明专利

JPS58157357A COMMUTATOR MOTOR 失效
公开(公告)号：JPS58157357A
公开(公告)日：1983-09-19
申请号：JP3957682
申请日：1982-03-15
申请人： HITACHI LTD
发明人： OHARAGI HARUO , TAWARA KAZUO , YAMASHITA SEIJI , TAKAHASHI NORIYOSHI , HATA MASAO
IPC分类号： H02K27/00 , H02K27/22 , H02K27/28
摘要： PURPOSE:To improve the commutation of a commutator motor and to reduce the temperature of a field coil by exciting an air core auxiliary coil at the low voltage operating time and reducing the number of turns of a field coil at the high voltage operating time. CONSTITUTION:When a power source 17 of low voltage 110V is used, a changeover switch 18 is switched, an armature 19 is energized through air core auxiliary coils 16A, 16B and field coils 14A-1, 14B-1. In this manner, the coils 16A, 16B are excited to reduce armature reaction magnetic flux, thereby improving the rectifying performance. Further, when a high voltage 220V is used, the armature 9 is energized via field coils 14C-14D by switching the switch 18, and the coils 16D, 16B are not energized by the voltage 220V. As a result, the number of turns of the field coil for 220V can be reduced, and the temperature rise of the field coil can be reduced.

62. 发明专利

JP2006352982A REFRIGERATION CYCLE DEVICE 审中-公开
公开(公告)号：JP2006352982A
公开(公告)日：2006-12-28
申请号：JP2005174478
申请日：2005-06-15
申请人： HITACHI LTD
发明人： ITO MAKOTO , YOSHIKAWA TOMIO , OHARAGI HARUO , KIKUCHI SATOSHI
IPC分类号： H02P27/06 , F25B1/00
摘要： PROBLEM TO BE SOLVED: To improve reliability by accurately determining the magnitude of a load, and eliminating the instability of a refrigeration cycle caused by step-out and demagnetization, in a refrigeration cycle device using an embedded-magnet synchronous motor. SOLUTION: The refrigeration cycle device has the refrigeration cycle composed by sequentially connecting a compressor 130, a condenser 140, a condenser air blower 145, a evaporator 150 and an expansion valve 160. The refrigeration cycle device comprises: the motor that drives the compressor 130, is formed with a basket-shaped winding 110 at the external periphery of a rotor, and embedded with permanent magnets magnetized to a plurality of poles inside the winding; and an operation current detection means 180 that detects an operation current of the motor. The refrigeration device obtains a value related to the distortion of the operation current, and when the value is not higher than a set value, electricity applied to the motor is cut. COPYRIGHT: (C)2007,JPO&INPIT

63. 发明专利

JP2005051841A Motor, compressor, and air conditioner 审中-公开
标题翻译：电机，压缩机和空调
公开(公告)号：JP2005051841A
公开(公告)日：2005-02-24
申请号：JP2003203449
申请日：2003-07-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIKUCHI SATOSHI , OHARAGI HARUO , YOSHIKAWA TOMIO , NAKAYAMA SUSUMU , IDE KAZUMASA
IPC分类号： F04B39/00 , H02K1/14 , H02K1/16 , H02K1/22 , H02K16/04 , H02K21/16 , H02K21/46
摘要： PROBLEM TO BE SOLVED: To provide a small and high-efficient motor for driving a compressor, and to provide a compressor using the same.
SOLUTION: A self-start type permanent magnet field synchronous motor comprises a stator 1 having an armature winding 5 of concentration winding so wound to enclose teeth 4 in a plurality of slots 3 formed at a stator core 2; and a rotor 10 composed of the rotor core 2, a cage type conductor 7 for starting, and a permanent magnet 8. The rotor is rotatably supported on the inner peripheral side of the stator 1 through a gap. The gaps are provided on one sides of tooth end members 4A, 4B, and 4C which are positioned at the end of the teeth 4 of the stator 1 and extend on both sides in the circumferential direction of the teeth 4, and the gaps are dislocated stepwise in the axial direction.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于驱动压缩机的小型高效电动机，并提供使用该压缩机的压缩机。解决方案：自启动型永磁场同步电动机包括定子1，其具有卷绕的集中绕组的电枢绕组5，以将齿4包围在形成在定子芯2上的多个槽3中; 以及由转子铁心2构成的转子10，用于启动的保持架型导体7和永磁体8.转子通过间隙可旋转地支承在定子1的内周侧。在位于定子1的齿4的端部的齿端部件4A，4B和4C的一侧设置有间隙，并且在齿4的周向上在两侧延伸，并且间隙脱落沿轴向逐步。版权所有（C）2005，JPO＆NCIPI

64. 发明专利

JP2003079083A Permanent magnet dynamo-electric machine and compressor 审中-公开
标题翻译：永磁电动机和压缩机
公开(公告)号：JP2003079083A
公开(公告)日：2003-03-14
申请号：JP2001262643
申请日：2001-08-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OHARAGI HARUO , WAKUI SHINICHI , TAKAHATA RYOICHI , SENOO MASAHARU , NOMA KEIJI , KIKUCHI SATOSHI , KIMURA MAMORU , TAKAHASHI MIYOSHI , HIRAYAMA HIROSHI , SESHIMO KOJI
IPC分类号： H02K1/14 , H02K1/16 , H02K1/24 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet dynamo-electric machine, which uses a concentrated winding stator and a magnet-embedded rotor, wherein good performance may be achieved even when driven by a 120-degree and 180-degree electrification inverter not provided with a position sensor.
SOLUTION: The permanent magnet dynamo-electric machine has a stator provided with armature winding in a plurality of slots formed on the core and a rotor having a plurality of permanent magnets stored in a plurality of permanent magnet insertion holes formed on the core. The permanent magnets protrude from the outer peripheral surface of the rotor core in roughly arc shapes while at the same time forming recesses between the poles on the outer peripheral surface of the rotor core.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供一种使用集中绕组定子和磁体嵌入式转子的永磁式发电机，其中即使在未提供120度和180度带电逆变器驱动的情况下也可获得良好的性能与位置传感器。解决方案：永磁发电机具有在形成在芯上的多个槽中设置有电枢绕组的定子和具有存储在形成在芯上的多个永磁体插入孔中的多个永磁体的转子。永磁体从转子铁心的外周面大致圆弧状突出，同时在转子铁心的外周面上的极之间形成凹部。

65. 发明专利

JP2002354729A PERMANENT MAGNET ELECTRIC ROTATING MACHINE AND AIR CONDITIONER USING THE SAME 失效
公开(公告)号：JP2002354729A
公开(公告)日：2002-12-06
申请号：JP2001156323
申请日：2001-05-25
申请人： HITACHI LTD
发明人： KIKUCHI SATOSHI , OHARAGI HARUO , WAKUI SHINICHI , KIMURA MAMORU , TAKAHATA RYOICHI , MAKI KOJI , TAWARA KAZUO , MIYATA KENJI , KITAMURA MASAJI , TAKAHASHI MIYOSHI
IPC分类号： H02K1/22 , H02K1/24 , H02K1/27 , H02K1/28 , H02K16/02 , H02K19/10 , H02K21/16
摘要： PROBLEM TO BE SOLVED: To provide a permanent magnet electric rotating machine which suppresses iron loss caused by the reaction magnetic flux of an armature and allows effective use of the reluctance torque. SOLUTION: The permanent magnet electric rotating machine has a first rotor core in which a permanent magnet is inserted into a permanent-magnet inserting hole and a second rotor core which has a reluctance magnetic circuit. A recess is provided between the poles near the surface of the outer periphery of the first rotor core, and a flux barrier, which constitutes the reluctance magnetic circuit of the second rotor core, is formed in a shape different from that of the permanent-magnet inserting hole, in order to provide the permanent magnet electric rotating machine with a large output by deciding a magnetic pass of the reaction magnetic flux of the armature and effectively utilizing the reluctance torque.

66. 发明专利

JP2002354727A ROTOR WITH BURIED PERMANENT MAGNET AND ELECTRIC ROTATING MACHINE 失效
公开(公告)号：JP2002354727A
公开(公告)日：2002-12-06
申请号：JP2001150766
申请日：2001-05-21
申请人： HITACHI LTD
发明人： WAKUI SHINICHI , OHARAGI HARUO , TAKAHATA RYOICHI , SESHIMO KOJI , HIRAYAMA HIROSHI , TAKAHASHI MIYOSHI
IPC分类号： H02K1/22 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To reduce cogging torque and torque puls of a rotor which has a buried permanent magnet. SOLUTION: An electric rotating machine comprises a stator 5, in which an armature winding is wound around a stator core, and the rotor 1 in which the permanent magnet 2 is buried in a rotor core 9. A hole 3 for prevention of a short circuit in magnetic flux, which is extended in a radial direction from a circumferential end (a vicinity of a q-axis) of the permanent magnet 2 to a vicinity of an outer periphery of the rotor core 9, is further extended to the side of a d-axis (in a circumferential direction), and formed in such a manner that the distance between the side of an outer periphery of the hole 3 and the outer periphery of the rotor core 9 is gradually made longer to the side of the d-axis from the side of the q-axis.

67. 发明专利

JP2000134842A ELECTRICAL ROTATING MACHINE 失效
公开(公告)号：JP2000134842A
公开(公告)日：2000-05-12
申请号：JP30862198
申请日：1998-10-29
申请人： HITACHI LTD
发明人： SASAKI MANABU , OHARAGI HARUO , KIKUCHI SATOSHI , SATO KAZUO , NOMA KEIJI , SENOO MASAHARU
IPC分类号： H02K21/14 , H02K1/27 , H02K15/03
摘要： PROBLEM TO BE SOLVED: To provide an electrical rotating machine which can naturally reduce a cogging torque and which can enhance a torque, without changing the constitution of a rotor. SOLUTION: This electrical rotating machine is provided with a stator 1, which comprises a stator core 2 and a stator winding 3 which is wound on the stator core 2. In addition, it is provided with a rotor 6 which is arranged inside of the stator 1 so as to be rotatable and which comprises a rotor core with a built-in permanent magnet 9. When the stator winding is electrified, the rotor is turned and driven. The magnetic orientation of every magnetic pole of the permanent magnet 9 is formed so as to be directed to a delay side with reference to the direction of rotation of the rotor from the central part in the circumferential direction of the permanent magnet 9.

68. 发明专利

JPH10234159A FORMATION OF CORE FOR ELECTRIC ROTATING MACHINE 失效
公开(公告)号：JPH10234159A
公开(公告)日：1998-09-02
申请号：JP3617097
申请日：1997-02-20
申请人： HITACHI LTD
发明人： OHARAGI HARUO , KIKUCHI SATOSHI , MIKAMI HIROYUKI , TAKAHASHI MIYOSHI , SATO KAZUO , SENOO MASAHARU
IPC分类号： H02K1/18 , H02K15/02
摘要： PROBLEM TO BE SOLVED: To enhance the availability of a steel plate, while localizing generation of magnetostriction by dividing a stator core into a ties core member and a core back core member and arranging the ties of another ties core member at the slot position of one ties core member and punching a steel plate. SOLUTION: A stator core 1 comprises a stator ties core member 2 and a stator core back member 3 which are internally fitted with the stator ties core member 2. A large number of stator slots 4 and stator ties 5 are formed alternately in the stator ties core member 2. A grain-oriented electromagnetic steel plate, exhibiting magnetic directivity in the breadthwise direction, is employed as the material of the stator core 1. The stator ties core member 2 and the stator core back core member 3 are punched linearly from the grain- oriented electromagnetic steel plate and rounded by bending a specific part thereof before being laminated to a required thickness. Consequently, a stator ties abutting face 6 and a stator core back-abutting face 7 are provided.

69. 发明专利

JPH10174387A INDUCTION MOTOR 失效
公开(公告)号：JPH10174387A
公开(公告)日：1998-06-26
申请号：JP32533696
申请日：1996-12-05
申请人： HITACHI LTD
发明人： OHARAGI HARUO , KIKUCHI SATOSHI , MIKAMI HIROYUKI , TAKAHASHI MIYOSHI , SENOO MASAHARU
IPC分类号： H02K1/18 , H02K17/16
摘要： PROBLEM TO BE SOLVED: To provide an induction motor wherein effective application of resources is realized, containing a rotor and a stator. SOLUTION: An induction motor is equipped with a stator 14 and a cage rotor 1. In the rotor 14, a stator winding 18 is wound around a stator core 16 having a plurality of stator slots 17. In the rotor 1, a secondary conductor 5 constituted of a bar 4 and end rings 6 is formed. The length LR of the rotor core 2 in the axial direction is less than the length LS of the stator core 16 in the axial direction, by the amount corresponding to the short rotor ratio of 2-4%.

70. 发明专利

JPH1028360A INDUCTION MOTOR AND ITS ROTOR 失效
公开(公告)号：JPH1028360A
公开(公告)日：1998-01-27
申请号：JP18187396
申请日：1996-07-11
申请人： HITACHI LTD
发明人： KIKUCHI SATOSHI , OHARAGI HARUO , MIKAMI HIROYUKI , TAKAHASHI MIYOSHI , KOMATA TAKESHI , SENOO MASAHARU
IPC分类号： H02K1/26 , B22D17/00 , B22D19/00 , H02K3/02 , H02K3/12 , H02K3/48 , H02K17/16
摘要： PROBLEM TO BE SOLVED: To obtain an induction motor which has good characteristics, even in its secondary conductor, composed of different kinds of metals by coating the outer peripheral surfaces of a bar and copper rod with aluminum films and connecting and forming the bar and an end ring by die-casting aluminum. SOLUTION: A bind bar 17, composed of a copper rod 17B having a cross section which is about 70% of the cross-sectional area of each fully-opened slot 3 provided in a rotor core 4 and an aluminum film 17A, is inserted into the bottom section of each fully-opened slot 3. Almost all the space of each slot 3 is occupied by the copper rod 17 and aluminum, and almost all bar currents flow to the copper rods 17B having low resistances when a squirrel-cage induction motor is operated at a nominal speed and to secondary conductors 5, composed of high-resistance aluminum when the motor is started. Since the currents flowing to the bars 17 flow to the copper rods 17B, having low resistances, the secondary resistance of the motor is reduced and the efficiency and characteristics of the motor are improved.

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