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1. 发明专利

AU4548896A Induction motor and its rotor 未知
公开(公告)号：AU4548896A
公开(公告)日：1997-08-28
申请号：AU4548896
申请日：1996-02-05
申请人： HITACHI LTD
发明人： KAJIWARA KENZOU , MARUYAMA SYOICHI , MIKAMI HIROYUKI , TAKAHASHI MIYOSHI , KOHARAGI HARUO , ARAI KEIJI , ITO MOTOYA
IPC分类号： H02K17/16 , H02K1/26
摘要： With the object of providing a high-performance induction motor and rotor thereof capable of increasing efficiency and reducing noise and stray loss by setting dimensions of slot apertures provided at a rotor core within an appropriate range, a dimension in a circumferential direction of said apertures of slot apertures provided at upper parts of a plurality of slots 3 provided with a prescribed dimension in the circumferential direction at the side of the outer periphery of a rotor core 2 is set in a range of more than 2.0mm and less than 3.5mm, and a dimension in a diameter direction of the slot apertures is set in a range of 1.0mm to 2.5mm.

2. 发明公开

EP1050949A4 MOTOR 失效
标题翻译：发动机
公开(公告)号：EP1050949A4
公开(公告)日：2005-12-14
申请号：EP98900684
申请日：1998-01-21
申请人： HITACHI LTD
发明人： KAJIWARA KENZOU , NAGAI KOUKI , FUJIGAKI TETSUO , TAKAHASHI MIYOSHI , MIKAMI HIROYUKI , KUWAHARA HEIKICHI , TAKAHASHI KENJI
IPC分类号： H02K1/20 , H02K1/32 , H02K3/493 , H02K5/20 , H02K9/06 , H02K17/16
CPC分类号： H02K9/06 , H02K1/20 , H02K1/32 , H02K3/493 , H02K5/20 , H02K17/16
摘要： A motor which can be cooled more efficiently while the characteristic deterioration of the motor is suppressed. Radial ventilation ducts (9) which communicate axial ventilation ducts (7, 8) and the gap what is called an air gap (10) between a stator core (2) and a rotor core (3) are provided in the parts of the stator core (2) and rotor core (3) equivalent to the range up to 40 % of the air gap (10) from the downstream side. The dimension of the air gap (10) is set so that the gap (10) can meet the numerical range of a prescribed relational expression. Magnetic wedges (16) are inserted into a plurality of slots (15) of the stator core (2).
摘要翻译：一种能够在保持电动机特性不劣化的同时实现电动机的冷却效率的电动机。用于使轴向风道7和8与定子芯2和转子芯3之间的间隙（即所谓的气隙10）连通的径向空气管道9被布置在定子铁心2和转子铁心3的相应部分在流过气隙10的冷却空气的下游侧的范围为40％。此外，气隙10的尺寸被设定在满足预定关系式的值的范围内。具有磁性的楔形物16插入设置在定子铁芯2中的每个槽15中

3. 发明公开

EP0880216A4 INDUCTION MOTOR AND ITS ROTOR 失效
标题翻译：感应电动机转子THEREFOR
公开(公告)号：EP0880216A4
公开(公告)日：1999-05-19
申请号：EP96901534
申请日：1996-02-05
申请人： HITACHI LTD
发明人： KAJIWARA KENZOU , MARUYAMA SYOICHI , MIKAMI HIROYUKI , TAKAHASHI MIYOSHI , KOHARAGI HARUO , ARAI KEIJI , ITO MOTOYA
IPC分类号： H02K17/16 , H02K1/26
CPC分类号： H02K17/165
摘要： An induction motor which is improved in power factor and reduced in noise and stray loss by specifying the ranges of dimensions of a plurality of slots provided in the rotor core. The slots (3) are arranged on the outer periphery of the rotor core (2) at prescribed intervals in the circumferential direciton, and extended in the axial direction. The dimension of the slots in the circumferential direction lies in a range from 2.0 mm to 3.5 mm, and the dimension of the same in the axial direction in a range from 1.0 mm to 2.5 mm.

4. 发明专利

JPS6091849A ROTOR OF ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS6091849A
公开(公告)日：1985-05-23
申请号：JP20034683
申请日：1983-10-25
申请人： HITACHI LTD
发明人： KAJIWARA KENZOU , KOIDO MASAYUKI
IPC分类号： H02K17/16
摘要： PURPOSE:To prevent a boundary surface of a bonded portion between a rotor bar and an end ring from separating by constructing to move a projection of the end ring to a stress alleviating groove side by following to the rotor bar when a centrifugal force is applied to the end ring. CONSTITUTION:A bottomed stress alleviating groove 7 which is opened at the outer peripheral side of the portion except a rotor bar inserting groove 5 and axially extended is provided on an end ring 4a. When a circumferential stress of a centrifugal force is applied to the ring 4a during the operation of a rotary electric machine, a projection 8 of the end ring 4a near the groove 7 is moved to the groove 7 side by following to a rotor bar 3. Thus, the stress applied to the bonded portion of the bar 3 and the ring 4a in the groove 5 can be reduced.

5. 发明专利

JPS5385316A ROTOR OF SQUIRRELLCAGE INDUCTION MOTOR 失效
公开(公告)号：JPS5385316A
公开(公告)日：1978-07-27
申请号：JP10777
申请日：1977-01-05
申请人： HITACHI LTD
发明人： KAJIWARA KENZOU , SHINODA KAZUO , NAKAMURA KOUICHI , FUKUDA ETSUHIRO , OOTA MASAYUKI , SATOU SHIGEMI
IPC分类号： H02K17/18 , H02K1/26 , H02K17/16
摘要： PURPOSE:To facilitate to start with small electric current, by forming the space that the width is smaller than the width of winding containing part at the outest circumference part of a slot in which a rotor winding is contained and is in radius direction and is larger than the width of the outest circumference of the slot.

6. 发明专利

JPS58201552A Rotor for rotary electric machine 失效
标题翻译：旋转电机转子
公开(公告)号：JPS58201552A
公开(公告)日：1983-11-24
申请号：JP8418382
申请日：1982-05-18
申请人： Hitachi Ltd
发明人： KAJIWARA KENZOU , SHIMIZU KOUSAKU
IPC分类号： H02K3/16 , H02K17/16
CPC分类号： H02K17/165
摘要： PURPOSE:To obtain a rotor which has high reliability by forming the bonding surface of an end ring to an end ring support which supports the radial end of the ring in a curved shape in which the radial distance of the axial ends is increased. CONSTITUTION:A rotor bar 3 of axially extended state is inserted into the groove of a rotor core 3 which is secured to a rotor shaft 1, an end ring 4C is secured to the axial end of the bar 3, and an end ring support 5C which supports the radial end of the ring 4C via the bonding surface is secured to the shaft 1. The bonding surface of the ring 4C to the ring 5C is formed in a curved shape in which the radial distance of the axial ends is increased. In this manner, the bending stress which is produced by the thermal elongation which acts on the securing part of the bar 3 to the ring 4C can be eliminated, thereby preventing the damage of the securing part.
摘要翻译：目的：通过将端环的接合表面形成为端环支撑件来获得具有高可靠性的转子，所述端环支撑件将环的径向端部以轴向端部的径向距离增加的弯曲形状支撑。构成：将轴向延伸状态的转子条3插入固定在转子轴1上的转子芯3的槽中，端环4C固定在杆3的轴向端部，端环支承件5C 通过接合表面支撑环4C的径向端固定到轴1.环4C到环5C的接合表面形成为轴向端部的径向距离增加的弯曲形状。以这种方式，可以消除通过作用在杆3的固定部分到环4C的热延伸产生的弯曲应力，从而防止固定部件的损坏。

7. 发明专利

JPS57126258A Cooling device for rotary electric machine 失效
标题翻译：旋转电机冷却装置
公开(公告)号：JPS57126258A
公开(公告)日：1982-08-05
申请号：JP1021581
申请日：1981-01-28
申请人： Hitachi Ltd
发明人： SHIMIZU KOUSAKU , KAJIWARA KENZOU
IPC分类号： H02K9/06 , H02K9/16
CPC分类号： H02K9/14
摘要： PURPOSE:To efficiently cool a rotary electric machine without increasing the size of the machine by providing a partition plate which elevationally divides the interior of a ventilation rib formed on the outer periphery of a stator core and providing an outer atmospheric air cover on the outer periphery of the rib, thereby performing the ventilation. CONSTITUTION:A wave-shaped ventilation rib 12 is mounted on the outer periphery of a stator core 2, and both axial ends are communicated with a hermetically sealing cover 7. A partition plate 13 which is opened at one end and which is communicated at the other with the cooling duct 14 of a stator is provided. An outer atmospheric air cover 15 is provided on the outer periphery of the rib 12, and the air is communicated from a cooling fan 4 to between the cover 15 and the rib 12. In this manner, since the air stream in the cover 7 is passed to be cooled via the outside of the plate 13 in the rib 12 and is then passed via the inside of the plate 13 into the stator of the maximum heater, the cooling efficiency can be improved.
摘要翻译：目的：为了有效地冷却旋转电机而不增加机器的尺寸，通过提供一个分隔板，该分隔板将形成在定子芯的外周上的通风肋的内部分开，并在外周上提供一个外部的大气罩的肋，从而进行通气。构成：在定子铁心2的外周上安装有波状的通风肋12，两个轴向端部均与气密密封盖7连通。隔板13在一端开口并连通另外与定子的冷却管道14相连。在肋12的外周设有外部大气罩15，空气从冷却风扇4与盖15和肋12连通。这样，由于盖7内的气流为通过肋12中的板13的外侧冷却，然后经由板13的内部进入最大加热器的定子，可以提高冷却效率。

8. 发明专利

JPS5354707A ROTOR FOR ELECTRIC ROTARY MACHINE 失效
公开(公告)号：JPS5354707A
公开(公告)日：1978-05-18
申请号：JP12946276
申请日：1976-10-29
申请人： HITACHI LTD
发明人： SATOU SHIGEMI , NAKAMURA HIROICHI , FUKUDA ETSUHIRO , KAJIWARA KENZOU , OOTA MASAYUKI
IPC分类号： H02K1/30
摘要： PURPOSE:To facilitate assembling by fixing a plurality of longitudinally divided cores to spider arm through single cylindrical ring thereby reducing difficulty during shrinkage fitting.

9. 发明专利

JPS5241952A HEAT EXCHANGER FOR ROTARY ELECTRIC APPARATUS 失效
公开(公告)号：JPS5241952A
公开(公告)日：1977-03-31
申请号：JP11647175
申请日：1975-09-29
申请人： HITACHI LTD
发明人： OKUYAMA HIDEKAZU , KAJIWARA KENZOU
IPC分类号： H02K9/18 , F28F1/08 , F28F9/00 , H02K9/00
摘要： PURPOSE:A heat-exchanger for rotary electric apparatus, improved in its cooling pipe to be indurable for vibrations of rotary electric apparatus and others.

10. 发明专利

JPS60257738A COOLING STRUCTURE OF UNDERLIQUID ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS60257738A
公开(公告)日：1985-12-19
申请号：JP11083484
申请日：1984-06-01
申请人： HITACHI LTD
发明人： KAJIWARA KENZOU
IPC分类号： H02K9/19
摘要： PURPOSE:To enhance the cooling efficiency by inclining an inlet or an outlet of a passage for alternately axially flowing in a rotor in a circumferential direction. CONSTITUTION:Rotor shaft direction passages 81, 82 provided in a rotor core 5 and a rotor core retainer 7 are alternately disposed, and liquid in a rotary electric machine flows in right and left shaft directions by inclining an inlet or an outlet in a circumferential direction. As a reult, in a loss generated in a rotary electric machine the efficiency for transmitting heat to the inner liquid is enhanced. Since the liquid is flowed to the rightward and leftward, the liquid is not stayed. Since the right and left sides are uniformly cooled, the temperatures are uniform, and cooling efficiency can be enhanced.

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