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1. 发明授权

US11171523B2 Rotary electric machine 有权
公开(公告)号：US11171523B2
公开(公告)日：2021-11-09
申请号：US16072005
申请日：2016-11-29
申请人： Mitsubishi Electric Corporation
发明人： Moriyuki Hazeyama , Junji Kitao , Yoshihiro Miyama , Shogo Okamoto , Shinji Nishimura , Ryuichi Kitora , Ryuji Kitamura , Hitoshi Isoda
IPC分类号： H02K1/14 , H02K21/16 , H02K1/27 , H02K1/22
摘要： In a rotary electric machine, slots are formed between teeth of a stator core. A ratio of a number of poles to a number of slots is 2:3. When an electrical angle of a tooth tip width, which is a width dimension of a tip of each of the teeth in a circumferential direction of the stator, is represented by α, an electrical angle of a pole arc angle, which is an angle formed by two straight lines that connect a rotation center of a rotor to corners on a rotor surface side of one permanent magnet, is represented by β, and a number of pole pairs is represented by P, the tooth tip width is within a range of (electrical angle)±0.2°×P for a value that satisfies the following expression: β=−2.5α+319.7 (0

2. 发明授权

US09722465B2 Stator for rotating electric machine and method for manufacturing stator for rotating electric machine 有权
公开(公告)号：US09722465B2
公开(公告)日：2017-08-01
申请号：US14402040
申请日：2013-06-04
申请人： Mitsubishi Electric Corporation
发明人： Moriyuki Hazeyama , Hideaki Arita , Yoshihiro Miyama , Akihiro Daikoku
IPC分类号： H02K1/16 , H02K3/34 , H02K15/02 , H02K1/14
CPC分类号： H02K1/165 , H02K1/146 , H02K3/345 , H02K15/02 , H02K2213/03 , Y10T29/49009
摘要： A tooth of a stator has a tapered shape in which a tooth width decreases toward a distal end portion thereof. A winding is formed of an edgewise winding wound around the tooth in a row. The winding is supplied with power so that a terminal on a base portion side of the tooth may have a higher voltage than that of a terminal on the distal end portion side thereof. A tooth width Th of the base portion is set within the range of Tmin

3. 发明授权

US09343933B2 Rotating electric machine 有权
标题翻译：旋转电机
公开(公告)号：US09343933B2
公开(公告)日：2016-05-17
申请号：US14258169
申请日：2014-04-22
申请人： Mitsubishi Electric Corporation
发明人： Hitoshi Isoda , Masaya Inoue , Shinji Nishimura , Moriyuki Hazeyama , Tomoya Tachibana
IPC分类号： H02K1/27
CPC分类号： H02K1/2766 , H02K2201/06 , H02K2213/03
摘要： A rotating electric machine includes a rotor including: a rotor core divided into blocks in an axial direction, the blocks being arranged to have a phase angle therebetween in a circumferential direction, the rotor core having magnet through holes arrayed in the circumferential direction and formed in an outer circumferential region; and permanent magnets inserted into the magnet through holes. The magnet through hole includes: a magnet insertion portion into which the permanent magnet is inserted; and a non-magnetic portion provided on an outer side of the magnet insertion portion in the circumferential direction. A bridge portion is formed between the outer circumferential surface and an outer circumferential inner wall of the non-magnetic portion. A bridge angle, which is an angle between both circumferential ends of the bridge portion with a rotation center of the rotor core set as a vertex, is larger than a skew angle.
摘要翻译：旋转电机包括转子，该转子包括：沿轴向分为块体的转子铁芯，所述块体在圆周方向上具有相位角，所述转子铁芯具有沿圆周方向排列的磁体通孔，并形成在外周区域; 永久磁铁插入到磁铁通孔内。磁体通孔包括：永磁体插入其中的磁体插入部分; 以及设置在磁体插入部的周向的外侧的非磁性部。在非磁性部的外周面与外周内壁之间形成有桥部。作为设置为顶点的转子铁芯的旋转中心的桥接部的两个周向端部之间的角度的桥角大于倾斜角度。

4. 发明授权

US10447096B2 Permanent-magnet-type rotating electrical machine 有权
公开(公告)号：US10447096B2
公开(公告)日：2019-10-15
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 , H02P27/06 , H02K1/27 , H02P21/06 , H02P25/22 , H02K1/14 , H02P29/66 , H02K29/03 , H02P21/14
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.

5. 发明授权

US10312846B2 Pole-number-changing rotary electric machine and driving method for pole-number-changing rotary electric machine 有权
公开(公告)号：US10312846B2
公开(公告)日：2019-06-04
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： H02K7/00 , H02P25/20 , H02P27/06 , H02K17/14 , H02K3/12 , H02K3/28 , H02P25/22 , H02K3/51 , H02K3/52 , H02K11/028
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.

6. 发明授权

US10003244B2 Squirrel-cage rotor and method for manufacturing squirrel-cage rotor 有权
公开(公告)号：US10003244B2
公开(公告)日：2018-06-19
申请号：US14912355
申请日：2014-05-30
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Taiga Komatsu , Moriyuki Hazeyama
IPC分类号： H02K17/16 , H02K15/00 , H02K17/20
CPC分类号： H02K17/165 , H02K15/0012 , H02K17/205 , H02K2213/03
摘要： A squirrel-cage rotor including a rotor which has a plurality of rotor slots on an outer circumferential portion thereof and in which secondary conductors accommodated in the rotor slots rotate freely inside a stator as a result of interaction with a rotating magnetic field formed by the stator. The plurality of rotor slots has the same shape and size, and an arrangement spacing thereof with respect to the rotation direction of the rotor is made uneven within a slot uneven arrangement period (360/(a))° obtained by equally dividing one rotation period of the rotor by a divisor (a) of a number p of poles in the stator.

7. 发明授权

US09825495B2 Rotating electric machine 有权
公开(公告)号：US09825495B2
公开(公告)日：2017-11-21
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： H02K1/32 , H02K1/27 , H02K9/10 , H02K1/06 , H02K1/16 , H02K29/03
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.

8. 发明授权

US09595851B2 Rotary electric machine 有权
标题翻译：旋转电机
公开(公告)号：US09595851B2
公开(公告)日：2017-03-14
申请号：US14758883
申请日：2014-01-17
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Moriyuki Hazeyama , Takuma Sasai , Shinsuke Kayano , Masaya Inoue , Shinji Nishimura , Akihiro Daikoku
IPC分类号： H02K1/27
CPC分类号： H02K1/2766
摘要： Permanent magnets that form individual magnetic poles are configured by arranging three magnet blocks to be spaced apart from each other circumferentially, the three magnet blocks are each formed such that cross-sectional shapes that are perpendicular to a central axis of a rotor core are radially outwardly convex, and circumferential widths are narrower in magnet blocks that are further away from a magnetic pole center, and the three magnet blocks that are arranged circumferentially are formed to have mirror symmetry relative to a plane that passes through the magnetic pole center and the central axis of the rotor core.
摘要翻译：形成单个磁极的永久磁铁通过将三个磁体块相互间隔设置而构成，三个磁体块各自形成为使得垂直于转子芯的中心轴线的横截面形状为径向向外在远离磁极中心的磁体块中，凸形和周向宽度较窄，并且沿周向布置的三个磁体块形成为相对于穿过磁极中心和中心轴线的平面具有镜像对称性的转子芯。

9. 发明授权

US11152875B2 Multigroup-multiphase rotary electrical machine control device and multigroup-multiphase rotary electrical machine drive device 有权
公开(公告)号：US11152875B2
公开(公告)日：2021-10-19
申请号：US16963888
申请日：2018-12-11
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Yoshihiro Miyama , Moriyuki Hazeyama , Kodai Okazaki
IPC分类号： H02K29/06 , H02P6/10 , H02P21/22 , H02K3/28 , H02P21/14 , H02P25/22 , H02P27/08
摘要： A multigroup, multiphase rotary electric machine control device including: a control target calculator to calculate an initial current command value of each phase based on a torque command value; a correction coefficient calculator to calculate a per-group correction coefficient corresponding to each group from a spatial mode M (M is 0 or a positive integer) of an electromagnetic force caused by magnetic flux density variation with respect to a rotational periodicity at the time of rotation of the multigroup, multiphase rotary electric machine; and a current command value corrector to calculate a current command value of the each phase, which is corrected based on the initial current command value and the per-group correction coefficient.

10. 发明授权

US10668917B2 Drive system and drive control method 审中-公开
公开(公告)号：US10668917B2
公开(公告)日：2020-06-02
申请号：US15752055
申请日：2016-08-19
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： Yoshihiro Miyama , Masaki Yamada , Takeshi Mori , Shigeki Harada , Moriyuki Hazeyama
IPC分类号： B60W20/20 , B60W10/08 , B60K6/40 , B60W20/00 , F02D29/06 , B60K6/46 , B60K6/26 , F02D29/02 , B60L50/13 , B60L58/12 , B60L50/51 , B60L50/15 , B60W20/15 , B60K6/442 , B60W10/02 , B60W10/06
摘要： In a drive system including a battery, a power generation device (PGD) including a generator mounted to an engine shaft, and a drive device (DD) including a motor for driving a driven component, a drive controller performs a drive control for PGD and DD and a switching control for a switching device. During a parallel connection, respective high-voltage side terminals (HVTs) of PGD and the battery are connected to a HVT of DD, and respective low-voltage side terminals (LVTs) of PGD and the battery are connected to LVT of DD. During a series connection, HVT of any one of PGD and the battery is connected to HVT of DD, and LVT of another one of PGD and the battery is connected to LVT of DD, and terminals of PGD and the battery, which are not connected to DD, are connected to each other.

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