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1. 发明公开

EP3876396A1 STATOR, ELECTRIC MOTOR, COMPRESSOR, AIR CONDITIONER, AND STATOR MANUFACTURING METHOD 有权
公开(公告)号：EP3876396A1
公开(公告)日：2021-09-08
申请号：EP18938577.6
申请日：2018-10-30
申请人： Mitsubishi Electric Corporation
发明人： MATSUOKA, Atsushi , YABE, Koji , ARAI, Toshio
IPC分类号： H02K3/28
摘要： A stator includes a stator core having a plurality of slots in a circumferential direction about an axis and having an end surface in a direction of the axis, and a first coil and a second coil of different phases which are wound on the stator core in distributed winding. A winding factor is 1. Each of the first coil and the second coil has winding portions, the number of which corresponds to the number of poles. The winding portions, the number of which corresponds to the number of poles, include a first winding portion and a second winding portion that are adjacent to each other in the circumferential direction. The first winding portion and the second winding portion are inserted into one slot of the plurality of slots and extend from the one slot to both sides in the circumferential direction on the end surface. The first coil and the second coil are annularly disposed in different positions in a radial direction about the axis on the end surface of the stator core.

2. 发明公开

EP3780345A1 ELECTRIC MOTOR, COMPRESSOR, BLOWER, AND REFRIGERATION AND AIR-CONDITIONING DEVICE 审中-实审
公开(公告)号：EP3780345A1
公开(公告)日：2021-02-17
申请号：EP18912930.7
申请日：2018-03-27
申请人： Mitsubishi Electric Corporation
发明人： YABE, Koji , WATANABE, Takanori
IPC分类号： H02K1/22 , H02K1/27
摘要： An electric motor (1) includes: a rotor (2) including a first rotor core (21) and a second rotor core (22); and a stator (3). A minimum distance (G1) from the first rotor core (21) to the stator (3) is shorter than a minimum distance (G2) from the second rotor core (22) to the stator (3). A maximum radius (Ra) of the first rotor core (21) is longer than a maximum radius (Rb) of the second rotor core (22). A shape of a first thin-wall part (205a) of the first rotor core (21) and a shape of a second thin-wall part (205b) of the second rotor core (22) are the same.

3. 发明公开

EP2916435A1 ELECTRIC MOTOR WITH EMBEDDED PERMANENT MAGNET, AND REFRIGERATION AND AIR CONDITIONING EQUIPMENT EQUIPPED WITH SAME 有权
标题翻译：，以便嵌入式永磁磁体和冷却系统和空调，电机
公开(公告)号：EP2916435A1
公开(公告)日：2015-09-09
申请号：EP13850290.1
申请日：2013-10-29
申请人： Mitsubishi Electric Corporation
发明人： NIGO, Masahiro , OKETANI, Naohiro , YABE, Koji , BABA, Kazuhiko
IPC分类号： H02K1/27
CPC分类号： H02K1/276 , F25B31/026 , H02K1/02 , H02K2213/03
摘要： A permanent magnet embedded electric motor (1) includes a slit (25) and a flux barrier (23). A hole defining portion of a magnet insertion hole includes an extended portion (11b). The extended portion projects toward an interpolar core portion (11c) in a rotor core (11) in an area positioned further on an outer side of a circumferential direction with respect to a width-direction end surface of a permanent magnet (13). (Lb) is larger than (La), and (Lc) is smaller than (Ld), where the (La) represents a distance between the slit and the core outer peripheral surface; the (Lb) represents a distance between the slit and an outer peripheral-side surface of the permanent magnet; the (Lc) represents a shortest distance between the extended portion and the interpolar core portion; and the (Ld) represents a thickness of the permanent magnet.

4. 发明公开

EP2755303A1 MOLDED STATOR, ELECTRIC MOTOR, AND AIR CONDITIONING OUTDOOR UNIT 有权
标题翻译：欧洲独联体国际货币基金组织
公开(公告)号：EP2755303A1
公开(公告)日：2014-07-16
申请号：EP12883436.3
申请日：2012-10-19
申请人： Mitsubishi Electric Corporation
发明人： YABE, Koji , OKETANI Naohiro , YAMANAKA Hiroshi , YABUUCHI Hironori , ONIHASHI Takayuki
IPC分类号： H02K1/18
CPC分类号： H02K1/165 , H02K1/148 , H02K5/08
摘要： A mold stator 80 is configured to include a stator core 60 and a mold resin 71a, 71b that covers the stator core 60. A divided-core part 32 includes a yoke part 32a that is arranged coaxially with a rotor that is provided in the stator core 60, a teeth part 32b that extends from the yoke part 32a in a radially-inward direction, and a teeth distal-end part 32c that is formed at a radially-inward end part of the teeth part 32b. An outer-circumferential flat-surface part 32d is formed on an outer circumferential surface of the yoke part 32a and an outer-circumferential flat-surface part 71b1 is formed at a position on an outer circumferential surface of the mold stator 80 opposing the flat-surface part of the yoke part 32a.
摘要翻译：模具定子80被构造成包括定子芯体60和覆盖定子铁心60的模制树脂71a，71b。分心芯部分32包括与设置在定子中的转子同轴配置的磁轭部分32a 芯部60，从磁轭部32a沿径向向内方向延伸的齿部32b和形成在齿部32b的径向内侧端部的齿前端部32c。在轭部32a的外周面上形成有外周平面部32d，在与定子80相对的模具定子80的外周面的位置形成有外周平面部71b1，轭部32a的表面部分。

5. 发明公开

EP2237399A1 INDUCTION ELECTRIC MOTOR AND HERMETIC COMPORESSOR 有权
标题翻译：电动感应马达和封闭式压缩机
公开(公告)号：EP2237399A1
公开(公告)日：2010-10-06
申请号：EP08764337.5
申请日：2008-05-19
申请人： Mitsubishi Electric Corporation
发明人： YOSHINO, Hayato , YABE, Koji , BABA, Kazuhiko , OIKAWA, Tomoaki , TSUTSUMI, Takahiro
IPC分类号： H02K17/18 , F04B39/00 , H02K17/16
CPC分类号： H02K17/185 , F04B35/04
摘要： The present invention is directed to provide an induction motor having an ideal efficiency at the normal operation time, while obtaining a high locked-rotor torque without having to use a special drive circuit. According to the induction motor related to the present invention, the induction motor has a rotor 11 having a double squirrel-cage secondary conductor, wherein the rotors 11 includes a rotor core 11a formed by laminating a plurality of electromagnetic steel plates, outer layer slots 40a filled with conductive material, installed along an outer peripheral edge of the rotor core 11a, inner layer slots 40b filled with conductive material, disposed inside of the outer layer slot 40a in the radial direction, and inner peripheral thin bridges 82 made of electromagnetic steel plate, installed in between the outer layer slots 40a and the inner layer slots 40b.

6. 发明公开

EP2113993A1 PERMANENT MAGNET SYNCHRONOUS MOTOR AND ENCLOSED COMPRESSOR 有权
标题翻译：永久性同步电机在ABGESCHLOSSENER KOMPRESSOR
公开(公告)号：EP2113993A1
公开(公告)日：2009-11-04
申请号：EP07714641.3
申请日：2007-02-21
申请人： Mitsubishi Electric Corporation
发明人： YOSHINO, Hayato , TAKITA, Yoshio , YABE, Koji , ISHIGAKI, Takashi , MASUMOTO, Koji
IPC分类号： H02K21/16 , H02K1/27
CPC分类号： H02K1/276 , H02K29/03 , H02K2213/03
摘要： It is an objective to provide a permanent magnet synchronous motor that is highly efficient with low vibration and low noise. A stator 30 includes a stator core 1 that includes magnetic pole teeth 2 each formed between adjacent slots 3, and stator windings 4 that are provided in the slots 3 of the stator core 1. A rotor 40 includes a rotor core 5, a plurality of magnet retaining holes 8, permanent magnets 7 inserted in the magnet retaining holes 8, and a plurality of slits 6 in the rotor core 5 on an outer circumferential side of the magnet retaining holes 8. Among the slits 6, slits 6 in a vicinity of a magnetic pole center of the rotor core 1 are oriented in a direction where a magnetic flux generated by a permanent magnet 7 converges outside the rotor core 1, whereas slits 6 in a vicinity of a pole border portion of the rotor core 5 are oriented in another direction that is different from the direction of the plurality of slits 6 in the vicinity of the magnetic pole center of the rotor core 5.
摘要翻译：目的是提供一种高效率，低振动，低噪音的永磁同步电动机。定子30包括定子铁心1，其包括各自形成在相邻的槽3之间的磁极齿2和设置在定子铁芯1的槽3中的定子绕组4.转子40包括转子铁心5，磁体保持孔8，插入磁体保持孔8中的永磁体7，以及在磁体保持孔8的外周侧的转子芯5中的多个狭缝6.在狭缝6中，转子铁芯1的磁极中心沿永久磁铁7产生的磁通量会聚在转子铁芯1的外侧的方向取向，而转子铁心5的极边界部分附近的狭缝6定向成与转子铁芯5的磁极中心附近的多个狭缝6的方向不同的另一方向。

7. 发明公开

EP3952065A1 ROTOR, MOTOR, COMPRESSOR, AND AIR CONDITIONING DEVICE 审中-公开
公开(公告)号：EP3952065A1
公开(公告)日：2022-02-09
申请号：EP19921609.4
申请日：2019-03-26
申请人： Mitsubishi Electric Corporation
发明人： WATANABE, Takanori , YABE, Koji
IPC分类号： H02K1/27
摘要： A rotor (2) includes a rotor core (21) and a permanent magnet (22). The rotor core (21) includes an outside slit (213) provided between a permanent magnet insertion hole (211) and an outer peripheral surface (21a) of the rotor core (21), and inside slits (214) provided between a magnetic pole center part (C1) and the outside slit (213). A minimum distance (Lo1) from a first inside slit (214a) to the outer peripheral surface (21a) of the rotor core (21) is longer than a minimum distance (Lo2, Lo3) from any other inside slit (214b, 214c) except the first inside slit (214a) to the outer peripheral surface (21a) of the rotor core (21).

8. 发明公开

EP3605796A1 ROTOR, ELECTRIC MOTOR, COMPRESSOR, FAN, AND AIR CONDITIONING DEVICE 有权
公开(公告)号：EP3605796A1
公开(公告)日：2020-02-05
申请号：EP17902996.2
申请日：2017-03-27
申请人： Mitsubishi Electric Corporation
发明人： YABE, Koji , FUJISUE, Yoshikazu , KUMAGAI, Kazuya , TSUTSUMI, Takahiro
IPC分类号： H02K1/27
摘要： A rotor includes a rotor core having an inner circumference in an annular shape about an axis, and an outer circumference positioned on an outer side of the inner circumference in a radial direction about the axis. The rotor core is formed by electromagnetic steel sheets. The rotor core has a first magnet insertion hole and a second magnet insertion hole along the outer circumference and adjacent to each other in a circumferential direction about the axis, and has a first slit and a second slit along the inner circumference and adjacent to each other in the circumferential direction. A first permanent magnet is provided in the first magnet insertion hole, and a second permanent magnet is provided in the second magnet insertion hole. The first slit has a first facing portion that faces the second slit, and the second slit has a second facing portion that faces the first slit. The first facing portion has a first inner end at an inner end of the first facing portion in the radial direction, and a first outer end at an outer end of the first facing portion in the radial direction. The second facing portion has a second inner end at an inner end of the second facing portion in the radial direction, and a second outer end at an outer end of the second facing portion in the radial direction. The rotor core has an inter-slit portion between the first facing portion and the second facing portion, the inter-slit portion being defined by a first straight line connecting the first inner end to the second inner circumference and a second straight line connecting the first outer end to the second outer end. The inter-slit portion is disposed on an inner side in the radial direction of an inter-pole portion between the first magnet insertion hole and the second magnet insertion hole. When D1 represents a minimum distance from the inner circumference of the rotor core to the first slit and the second slit in the radial direction, W1 represents a minimum width of the first slit and the second slit in the radial direction, and W2 represents a length of the inter-slit portion in the radial direction, at least one of D1

9. 发明授权

EP2200160B1 ROTATOR FOR INDUCTION ELECTRIC MOTOR, INDUCTION ELECTRIC MOTOR, COMPRESSOR, BLOWER, AND AIR-CONDITIONING DEVICE 有权
公开(公告)号：EP2200160B1
公开(公告)日：2019-06-26
申请号：EP08764338.3
申请日：2008-05-19
申请人： Mitsubishi Electric Corporation
发明人： YABE, Koji , YOSHINO, Hayato , BABA, Kazuhiko , OIKAWA, Tomoaki , TSUTSUMI, Takahiro
IPC分类号： H02K17/18 , H02K17/20

10. 发明授权

EP2348613B1 ROTOR OF MOTOR AND MOTOR AND FAN AND COMPRESSOR 有权
公开(公告)号：EP2348613B1
公开(公告)日：2019-05-15
申请号：EP09827390.7
申请日：2009-01-30
申请人： Mitsubishi Electric Corporation
发明人： YABE, Koji , YOSHINO, Hayato , BABA, Kazuhiko
IPC分类号： H02K1/27

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