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1. 发明申请

US20170366129A1 POLE-NUMBER-CHANGING ROTARY ELECTRIC MACHINE AND DRIVING METHOD FOR POLE-NUMBER-CHANGING ROTARY ELECTRIC MACHINE 审中-公开
公开(公告)号：US20170366129A1
公开(公告)日：2017-12-21
申请号：US15537508
申请日：2016-01-14
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Yuki HIDAKA , Taiga KOMATSU , Hideaki ARITA , Akihiro DAIKOKU , Moriyuki HAZEYAMA
IPC分类号： H02P25/20 , H02K17/14 , H02K3/12 , H02K3/28 , H02P27/06 , H02K3/52 , H02K3/51 , H02K11/028
CPC分类号： H02P25/20 , H02K3/12 , H02K3/28 , H02K3/51 , H02K3/522 , H02K11/028 , H02K17/14 , H02P25/22 , H02P27/06
摘要： A pole-number-changing rotary electric machine includes: a rotary electric machine; an n-group inverter; and a control unit for controlling the n-group inverter, wherein the control unit controls current phases of a current flowing through stator coils such that a current phase degree of freedom, which is a number of current phases per pole pair controllable by the n-group inverter, is equal to a number of groups n×a number of phases m/2 at a time of high polarity driving and the number of groups n×the number of phases m at a time of low polarity driving, where the number of groups n is a multiple of 4 and the number of phases m is a natural number of 3 or more and relatively prime to the number of groups n.

2. 发明申请

US20170346353A1 PERMANENT-MAGNET-TYPE ROTATING ELECTRICAL MACHINE 审中-公开
公开(公告)号：US20170346353A1
公开(公告)日：2017-11-30
申请号：US15538065
申请日：2015-11-18
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Junji KITAO , Moriyuki HAZEYAMA , Yoshihiro MIYAMA , Takeshi MORI , Akihiro DAIKOKU
IPC分类号： H02K1/16 , H02P21/06 , H02K1/27 , H02P27/06 , H02P21/14 , H02K29/03 , H02P29/66
CPC分类号： H02K1/16 , H02K1/146 , H02K1/276 , H02K1/2766 , H02K29/03 , H02K2201/06 , H02P21/06 , H02P21/141 , H02P25/22 , H02P27/06 , H02P29/662
摘要： Given a first intersection point of the surface of a rotor and a straight line that joins a central point of a permanent magnet on a stator side and a tooth tip section closest to the central point of the permanent magnet on the stator side, a flange is formed outward of an arc having, as the radius thereof, a distance from a second intersection point of the inner peripheral face of the stator and a straight line that joins the rotation axis of the rotor and the first intersection point, up to the tooth tip section.

3. 发明申请

US20160126791A1 ROTATING ELECTRIC MACHINE 有权
标题翻译：旋转电机
公开(公告)号：US20160126791A1
公开(公告)日：2016-05-05
申请号：US14895776
申请日：2014-05-15
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Moriyuki HAZEYAMA , Akihiro DAIKOKU
IPC分类号： H02K1/27 , H02K1/16 , H02K1/06 , H02K1/32
CPC分类号： H02K1/276 , H02K1/06 , H02K1/16 , H02K1/2766 , H02K1/32 , H02K9/10 , H02K29/03
摘要： A rotating electric machine including a rotator including a small-angle rotator portion and a large-angle rotator portion respectively having different inter-magnet end angles, each being a plane angle formed between a line connecting one outermost peripheral-side end of a permanent magnet and an axial center of the rotator and a line connecting an outermost peripheral-side end of another permanent magnet and the axial center of the rotator. The rotator includes three layers of the small-angle rotator portion, the large-angle rotator portion, and the small-angle rotator portion, which are laminated in the stated order along an axial line of the rotator. Therefore, demagnetization due to a temperature rise of the permanent magnets is suppressed. In addition, a temperature distribution in the permanent magnets in the axial direction of the rotator is reduced.
摘要翻译：一种旋转电机，包括分别具有不同的磁体间角度的小角度旋转体部和大角度旋转体部的旋转体，所述旋转体各自是在连接永磁体的最外周侧端部的线之间形成的平面角和旋转体的轴心，以及连接另一永久磁铁的最外周侧端部和旋转体的轴心的线。旋转体包括三个小角度旋转体部分，大角度旋转体部分和小角度旋转体部分，它们沿旋转体的轴线按顺序层叠。因此，由于永磁体的温度升高而导致的退磁被抑制。此外，永久磁铁在旋转体的轴向上的温度分布减小。

4. 发明申请

US20180177080A1 ELECTRIC POWER CONVERTING APPARATUS 审中-公开
公开(公告)号：US20180177080A1
公开(公告)日：2018-06-21
申请号：US15128367
申请日：2015-04-22
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Junji KITAO , Yoshihiro MIYAMA , Akihiro DAIKOKU , Norihiro WATANABE
IPC分类号： H05K7/20 , H05K5/06
CPC分类号： H02K9/19 , H01H9/52 , H01L23/473 , H01L2924/0002 , H02K5/20 , H02K11/33 , H02M7/48 , H05K5/06 , H05K7/20263 , H05K7/20409 , H05K7/20927 , H01L2924/00
摘要： In the electric power converting apparatus, a frame unit is configured by mounting an inner frame into an outer frame, brackets are disposed on two axial ends of the frame unit, an annular liquid cooling jacket is configured between the inner frame and the outer frame, the inner frame is configured into a tubular shape by bending a plurality of base members that are linked consecutively at thin linking portions between the base members, and butting together the base members that are positioned at two ends in a direction of linking, the power modules are mounted to respective side wall surfaces of the inner frame that face radially inward, and sealing members that seal the liquid cooling jacket are respectively disposed in the butted portion of the base members, and between the frame unit and the bracket.

5. 发明申请

US20180175707A1 ROTARY ELECTRIC MACHINE 审中-公开
公开(公告)号：US20180175707A1
公开(公告)日：2018-06-21
申请号：US15571133
申请日：2016-04-05
申请人： Mitsubishi Electric Corporation
发明人： Yoshihiro MIYAMA , Hideaki ARITA , Akihiro DAIKOKU
IPC分类号： H02K9/22 , H02K1/20 , H02K1/14 , H02K3/12 , H02K3/34 , H02K15/04
摘要： A motor according to the present invention includes: a stator core that surrounds an outer circumference of a rotor, and that includes: a yoke portion; and a plurality of tooth portions in which tip portions protrude radially inward toward a central axis of the rotor from an inner circumferential surface of the yoke portion; a heat sink that is disposed so as to face a first end surface of the stator core in an axial direction of the stator core; a stator coil that includes phase coil portions that are configured using conducting wires that are mounted to the stator core; and a coil fixing member that is disposed on coil end portions of the phase coil portions, that fixes the coil end portions in a state of surface contact with the heatsink.

6. 发明申请

US20160164387A1 BASKET-TYPE ROTOR PRODUCTION METHOD AND BASKET-TYPE ROTOR 有权
标题翻译：篮式转子生产方法和篮式转子
公开(公告)号：US20160164387A1
公开(公告)日：2016-06-09
申请号：US14904339
申请日：2014-12-15
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Taiga KOMATSU , Hideaki ARITA , Akihiro DAIKOKU , Yoshihiro MIYAMA , Moriyuki HAZEYAMA
IPC分类号： H02K17/16 , H02K15/00 , H02K1/26
CPC分类号： H02K17/165 , H02K1/26 , H02K15/0012 , H02K17/16
摘要： A squirrel-cage rotor manufacturing method capable of suppressing, at the time of performing die-casting, formation of gaps between closing portions and a rotor core at radially outer parts of rotor slots, or generation of a thermal stress in the rotor core as a result of expansion of the closing portions. The squirrel-cage rotor manufacturing method includes: arranging, through die-casting, conductors into rotor slots that are formed along a radially outer part of a rotor core; and performing the die-casting under a state in which radially outer parts of the rotor slots are closed with closing portions made of the same material as a material of the rotor core.
摘要翻译：一种鼠笼式转子制造方法，其能够在进行压铸时抑制在转子槽的径向外侧部分的闭合部与转子芯之间形成间隙，或者在转子铁心中产生热应力关闭部分膨胀的结果。鼠笼式转子制造方法包括：通过压铸将导体排列成沿着转子芯的径向外部部分形成的转子槽; 并且在转子槽的径向外部部分由与转子芯材料相同的材料制成的封闭部分封闭的状态下进行压铸。

7. 发明申请

US20180087887A1 ELECTROMAGNETIC ACTUATOR 审中-公开
公开(公告)号：US20180087887A1
公开(公告)日：2018-03-29
申请号：US15564983
申请日：2015-05-14
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Masafumi SUGAWARA , Toru OGAWA , Satoshi TESEN , Hideaki ARITA , Akihiro DAIKOKU
IPC分类号： G01B7/00 , H01F7/16 , F01L13/00 , H01F7/122 , F02D35/00
摘要： The magnetic resistance of a magnetic path that passes through a coil (6) is increased by magnetically dividing a stator core into a plurality of divided cores (4, 5) in such a manner that the magnetic flux of a permanent magnet (7) flows through the magnetic path when a projection (82) of a plunger (8) magnetically connects the divided cores (4, 5), hence the magnetic resistance of the magnetic path that passes through the coil (6) rapidly changes due to a positional relationship between a gap between the divided cores (4, 5) and the plunger (8), and the magnetic flux that flows through the magnetic path rapidly changes, and moreover a large back electromotive force is produced.

8. 发明申请

US20160248308A1 MAGNETIC INDUCTOR ELECTRIC MOTOR AND MANUFACTURING METHOD THEREFOR 有权
标题翻译：磁电感电动机及其制造方法
公开(公告)号：US20160248308A1
公开(公告)日：2016-08-25
申请号：US15029748
申请日：2014-07-16
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Toru OGAWA , Hideaki ARITA , Akihiro DAIKOKU , Taiga KOMATSU , Yoshihiro MIYAMA
IPC分类号： H02K21/26 , H02K1/24 , H02K15/04 , H02K15/02 , H02K15/03 , H02K1/17 , H02K3/18
CPC分类号： H02K21/26 , H02K1/17 , H02K1/24 , H02K3/18 , H02K15/022 , H02K15/03 , H02K15/04 , H02K21/44
摘要： A first stator core and a second stator ore are configured by arranging core block pairs into an annular shape, the core block pairs being configured by stacking together core blocks so as to be spaced apart axially, each of the core blocks including a core back portion and one tooth, and a permanent magnet is configured so as to be divided into a plurality of magnet blocks that each include: a base portion; one shaft portion that protrudes radially inward from an inner circumferential surface of the base portion; and flange portions that protrude on two circumferential sides from a radially inner end portion of the shaft portion, the magnet blocks being held between the core block pairs such that the base portion and the shaft portion are positioned inside the core block pairs and such that the flange portions protrude circumferentially from the core block pairs.
摘要翻译：第一定子铁芯和第二定子矿石通过将芯块对布置成环形而构成，芯块对通过将芯块堆叠在一起而被轴向间隔开来，每个芯块包括芯部后部和一个齿，并且永磁体被构造成被分成多个磁体块，每个磁体块包括：基部; 一个轴部从基部的内周面径向向内突出; 以及凸缘部，其从所述轴部的径向内端部在两个周向侧突出，所述磁体块保持在所述芯块对之间，使得所述基部和所述轴部位于所述芯块对内，凸缘部分从芯部块对周向周向伸出。

9. 发明申请

US20180269822A1 SYNCHRONOUS MACHINE CONTROL DEVICE AND PERMANENT MAGNET TEMPERATURE ESTIMATION METHOD FOR SYNCHRONOUS MACHINE 有权
公开(公告)号：US20180269822A1
公开(公告)日：2018-09-20
申请号：US15547546
申请日：2016-01-18
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Junichi AIZAWA , Yoshikazu NAKANO , Akihiro DAIKOKU , Shota HANIOKA
IPC分类号： H02P29/66
CPC分类号： H02P29/662 , H02P6/16 , H02P21/00 , H02P27/04
摘要： Provided are: a synchronous machine having permanent magnets as a field system; a stress estimator that estimates stress acting on the permanent magnets; and a first magnet temperature corrector that calculates an amount of demagnetization due to stress of armature interlinkage magnetic flux on the basis of the estimated stress, estimates an amount of demagnetization due to stress of the armature interlinkage magnetic flux on the basis of the rotor position of the synchronous machine, a current command and a voltage command, and the amount of demagnetization due to stress of the armature interlinkage magnetic flux; and outputs a permanent magnet temperature estimated value after correction, having factored therein the amount of demagnetization due to stress of the armature interlinkage magnetic flux from the estimated armature interlinkage magnetic flux.

10. 发明申请

US20170019050A1 MULTIGROUP, MULTIPHASE DRIVING SYSTEM AND DRIVING METHOD FOR ROTARY ELECTRIC MACHINE 有权
标题翻译：多功能驱动系统及旋转电机驱动方法
公开(公告)号：US20170019050A1
公开(公告)日：2017-01-19
申请号：US15123936
申请日：2015-05-27
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Yoshihiro MIYAMA , Moriyuki HAZEYAMA , Akihiro DAIKOKU
IPC分类号： H02P25/18 , H02P25/22 , H02P6/17 , H02P27/08
CPC分类号： H02P25/18 , H02P6/17 , H02P25/22 , H02P27/08
摘要： A multigroup, multiphase driving system includes a power converter that converts direct current power into alternating current power and vice versa, a direct current power supply connected to a direct current side of the power converter to be charged with and discharge direct current power, and a rotary electric machine connected to an alternating current side of the power converter and including a plurality of groups of multiphase armature windings, and further including a determination unit that determines the number of groups to be used to drive the rotary electric machine on the basis of a rotation speed of the rotary electric machine, a current flowing through the rotary electric machine, a direct current power supply voltage of the direct current power supply, and a carrier frequency of the power converter, the multigroup, multiphase driving system overall loss in the system can be reduced.
摘要翻译：多组多相驱动系统包括将直流电力转换成交流电力的功率转换器，反之亦然，连接到要被充电和放电直流电力的功率转换器的直流侧的直流电源，以及连接到所述功率转换器的交流侧的旋转电机，并且包括多组多相电枢绕组，并且还包括确定单元，所述确定单元确定用于驱动所述旋转电机的组的数量，基于旋转电机的旋转速度，流过旋转电机的电流，直流电源的直流电源电压，以及功率转换器的载波频率，多组，多相驱动系统的整体损耗可以减少

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