公开(公告)号：US20150162790A1

公开(公告)日：2015-06-11

申请号：US14258169

申请日：2014-04-22

Applicant: Mitsubishi Electric Corporation

Inventor： Hitoshi ISODA ,  Masaya INOUE ,  Shinji NISHIMURA ,  Moriyuki HAZEYAMA ,  Tomoya TACHIBANA

IPC: H02K1/27 ,  H02K3/18

CPC classification number: H02K1/2766 ,  H02K2201/06 ,  H02K2213/03

Abstract: 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.

Abstract translation: 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中。 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。

公开(公告)号：US20150108877A1

公开(公告)日：2015-04-23

申请号：US14222035

申请日：2014-03-21

Applicant: Mitsubishi Electric Corporation

Inventor： Soichi SATO ,  Masaya INOUE ,  Koichi OJIMA ,  Keigo MAEDA

IPC: H02K7/08

CPC classification number: H02K5/1732 ,  H02K5/16 ,  H02K5/161 ,  H02K7/083 ,  H02K11/01

Abstract: A rotary electric machine includes: a stator around which a coil is wound; a frame which fixes the stator; a rotor which faces the stator via a slight air gap; a shaft which is fixed to the rotor and is rotatably and removably supported via a bearing; and a bracket which supports the bearing inside a bearing box. The rotary electric machine includes: an insulating member which is mounted inside the bearing box of the bracket; a metal holder which is mounted inside the insulating member with a predetermined clearance with respect to an outer ring of the bearing, and supports the bearing; and a pressing body which is mounted between the side surface of the metal holder and the side surface of the outer ring of the bearing.

Abstract translation: 旋转电机包括：线圈缠绕在其周围的定子; 固定定子的框架; 经由微小气隙面向定子的转子; 固定在转子上并通过轴承可旋转地和可移除地支撑的轴; 以及将轴承支撑在轴承箱内的支架。 旋转电机包括：安装在支架的轴承箱内的绝缘件; 金属保持器，其相对于所述轴承的外圈以预定的间隙安装在所述绝缘构件的内部，并支撑所述轴承; 以及安装在金属保持件的侧面与轴承的外圈的侧面之间的按压体。

公开(公告)号：US20220344981A1

公开(公告)日：2022-10-27

申请号：US17763680

申请日：2020-01-21

Applicant: Mitsubishi Electric Corporation

Inventor： Takayuki ONIHASHI ,  Koki NAKA ,  Hiroki DAITO ,  Kenji FUKUI ,  Akira WATARAI ,  Masaya INOUE

IPC: H02K1/12 ,  H02K15/02

Abstract: A laminated core for an electric machine includes a plurality of laminated core pieces. Each of the plurality of core pieces includes a first portion and a second portion having a plate thickness smaller than a plate thickness of the first portion.

公开(公告)号：US20210310784A1

公开(公告)日：2021-10-07

申请号：US16342066

申请日：2016-10-31

Applicant: Mitsubishi Electric Corporation

Inventor： Koji NISHIZAWA ,  Yoshihiro MIYAMA ,  Tatsuo NISHIMURA ,  Hideaki ARITA ,  Masaya INOUE

IPC: G01B7/30 ,  G01D5/14

Abstract: A rotation angle detection device, including: a rotor; a stator including one bias magnetic field generation portion (BMFGP) and magnetic detection elements; and a rotation angle calculation processor calculating a rotation angle of the rotor from detection signals of the detection elements, wherein a surface of the rotor has convex and concave portions (CCPs), which change in “x” (“x”≥1) cycles for a mechanical angle of 360, and a shape of the CCPs make the detection elements possible to obtain a sine wave, and wherein “a” (“a”≥2) detection elements are arranged along a circumferential direction of the stator at equal intervals for one cycle of the CCPs-so as to be opposed to the surface of the rotor, and the BMFGP extends in the circumferential direction for one cycle of the CCPs so as to overlap with the “a” detection elements.

公开(公告)号：US20190356189A1

公开(公告)日：2019-11-21

申请号：US16105077

申请日：2018-08-20

Applicant: Mitsubishi Electric Corporation

Inventor： Fumitaka TOTSUKA ,  Yuki YAMAMOTO ,  Masaya INOUE ,  Yoshiki KUWAHARA ,  Kota KATSURAGI ,  Ryuji KITAMURA

IPC: H02K3/38 ,  H02K1/14 ,  H02K3/18 ,  H02K3/52

Abstract: A plurality of bus rings, which are arranged at bus ring maintaining portions, include coil connecting portions, which are protruded in an outer direction in a shaft direction of a stator core with respect to the bus ring maintaining portions, and terminals of coils of a stator are bent in an outer direction in a diameter direction of the stator core in a state where end surfaces of wall portions of bobbins are used as base points, and are connected to the coil connecting portions of the bus rings, and the end surfaces of the wall portions are protruded in an outer direction in a shaft direction of the stator core with respect to end surfaces of the bus rings, and are positioned in an inner direction in a shaft direction of the stator core with respect to end surfaces of the coil connecting portions of the bus rings.

公开(公告)号：US20180041080A1

公开(公告)日：2018-02-08

申请号：US15556387

申请日：2016-04-11

Applicant: Mitsubishi Electric Corporation

Inventor： Aiko NAKANO ,  Atsushi SAKAUE ,  Masaya INOUE ,  Moriyuki HAZEYAMA ,  Hironori TSUIKI ,  Sachiko KAWASAKI

IPC: H02K1/27 ,  H02K15/03 ,  H02K21/14 ,  H02K1/28

CPC classification number: H02K1/2766 ,  H02K1/22 ,  H02K1/27 ,  H02K1/28 ,  H02K15/02 ,  H02K15/03 ,  H02K21/14

Abstract: This rotor includes: a rotor core in which a plurality of insertion holes each penetrating the rotor core in an axial direction are formed with intervals interposed thereamong in a circumferential direction; and magnets respectively provided in the insertion holes, wherein a hole-inside-peripheral-surface of each insertion hole does not contact with a magnet-inside-peripheral-surface of a corresponding one of the magnets, a hole-outside-peripheral-surface of the insertion hole and a magnet-outside-peripheral-surface of the magnet contact with each other at two locations of a first location and a second location, an adhesive layer portion is formed between the first location and the second location and between the hole-outside-peripheral-surface of the insertion hole and the magnet-outside-peripheral-surface of the magnet, and a first protruding portion which protrudes toward outside in a radial direction and which contacts with the magnet is formed at the hole-inside-peripheral-surface of the insertion hole.

公开(公告)号：US20160322876A1

公开(公告)日：2016-11-03

申请号：US15107524

申请日：2014-01-17

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Masaki HORII ,  Atsushi SAKAUE ,  Masaya INOUE

IPC: H02K3/24 ,  H02K9/19 ,  H02K3/28 ,  H02K1/32 ,  H02K3/14

CPC classification number: H02K3/24 ,  H02K1/20 ,  H02K1/32 ,  H02K3/12 ,  H02K3/14 ,  H02K3/28 ,  H02K3/50 ,  H02K5/20 ,  H02K9/19 ,  H02K2213/03

Abstract: Winding bodies are produced by repeatedly winding a δ-shaped coil pattern that is formed by inserting the conductor wire sequentially into a second slot, a first slot, a second slot, and a third slot, so as to alternate an axial direction of insertion into the first slot, the second slot, and the third slot, for two turns in a radial direction, and are configured such that a plurality of rectilinear portions that are respectively inserted into the first slot, the second slot, and the third slot are linked continuously by coil end portions, and a liquid coolant is supplied to a coil end that is constituted by the coil end portions.

Abstract translation: 卷绕体通过重复地卷绕通过将导线顺序地插入第二槽，第一槽，第二槽和第三槽而形成的δ形线圈图案来产生，以便将轴向插入方向交替 所述第一槽，所述第二槽和所述第三槽在径向方向上两匝，并且被配置为使得分别插入到所述第一槽，所述第二槽和所述第三槽中的多个直线部分被连接 连续地通过线圈端部，并且将液体冷却剂供给到由线圈端部构成的线圈端。

公开(公告)号：US20160099616A1

公开(公告)日：2016-04-07

申请号：US14785209

申请日：2013-09-24

Applicant: Mitsubishi Electric Corporation

Inventor： Tatsuro HINO ,  Akira HASHIMOTO ,  Masaya INOUE ,  Akihiro YAMAMURA ,  Shogo OKAMOTO ,  Atsushi SAKAUE ,  Hironori TSUIKI

IPC: H02K1/16 ,  H02K15/02

CPC classification number: H02K1/16 ,  H02K15/026 ,  H02K2213/03

Abstract: An iron core member has: first divided yoke portions; second divided yoke portions alternately arranged with the first divided yoke portions; a first tooth portion extending from one circumferential end of each first divided yoke portion, a second tooth portion extending from the other circumferential end; a third tooth portion extending from one circumferential end of the second divided yoke portion on the second tooth portion side, and a fourth tooth portion extending from the other circumferential end. A tooth end portion of the first tooth portion and a tooth end portion of the adjacent fourth tooth portion are integrally joined at a first tooth end joint portion, and a tooth end portion of the second tooth portion and a tooth end portion of the adjacent third tooth portion are integrally joined at a second tooth end joint portion, thereby providing one continuous sheet of the core member.

Abstract translation: 铁芯构件具有：第一分割磁轭部; 第二分割磁轭部分与第一分割磁轭部分交替布置; 从每个第一分割磁轭部分的一个周向端延伸的第一齿部分，从另一个圆周端延伸的第二齿部; 从第二齿部侧的第二分割磁轭部的一个周向端延伸的第三齿部和从另一个圆周端延伸的第四齿部。 第一齿部的齿端部和相邻的第四齿部的齿端部在第一齿端部接合部一体地接合，第二齿部的齿端部和相邻的第三齿部的齿端部 齿部在第二齿端部接合部一体地接合，从而提供一个连续的芯部件。

公开(公告)号：US20200280223A1

公开(公告)日：2020-09-03

申请号：US16649769

申请日：2017-10-30

Applicant: Mitsubishi Electric Corporation

Inventor： Kazuyuki IWAMOTO ,  Motoaki KIMURA ,  Masaya INOUE

IPC: H02K1/18

Abstract: According to the present invention, provided is a rotary electric machine, which is to be connected to at least one of a first torque input/output shaft and a second torque input/output shaft, and includes a stator and a rotor. The rotor of the rotary electric machine includes: a rotor core; a torque transmitting portion, which is connected to at least one of the first torque input/output shaft and the second torque input/output shaft, and is formed of a plate-shaped member; and a rotor core retaining portion, which is retained on the torque transmitting portion, is configured to retain the rotor core, and is formed of a plate-shaped member.

公开(公告)号：US20190140509A1

公开(公告)日：2019-05-09

申请号：US16096389

申请日：2016-06-08

Applicant: Mitsubishi Electric Corporation

Inventor： Ryuichi KITORA ,  Masaya INOUE ,  Ryuji KITAMURA ,  Kota KATSURAGI

IPC: H02K3/52 ,  H02K3/50 ,  H02K1/18

Abstract: In a rotary electric machine, each of coils includes coil terminals led out from a coil main body. The coil terminals are connected to bus bars. When a diameter of each of the bus bars is defined as D, a diameter of a cross section of a coil wire is defined as “d”, a Young's modulus of the coil wire is defined as E, a linear expansion coefficient of a material of the bus bars is defined as α1, a linear expansion coefficient of a material of a stator core is defined as α2, and an estimated temperature difference between a room temperature and a use environment temperature is defined as ΔT, a length L of at least one of the coil terminals from an end on the coil main body side to a connecting portion to the bus bar satisfies the following expression: L≥((3πdED(α1−α2)ΔT/10)1/2/10.