公开(公告)号：US20210344241A1

公开(公告)日：2021-11-04

申请号：US17283247

申请日：2019-06-28

Applicant: Mitsubishi Electric Corporation

Inventor： Hiroshi MITSUDA ,  Yoshihiro MIYAMA ,  Masaya INOUE ,  Masashi NAKAMURA ,  Moriyuki HAZEYAMA

IPC: H02K1/27 ,  H02K21/14

Abstract: The rotating electric machine includes: a rotor; and a stator, wherein the rotor includes: a rotor core having a magnet insertion hole group including a plurality of magnet insertion holes; and a permanent magnet group including a plurality of permanent magnets inserted in the plurality of magnet insertion holes of the magnet insertion hole group, respectively, wherein the plurality of magnet insertion holes are arranged side by side in a shape convex toward a center of the rotor from a radially-outer side surface of the rotor core, wherein the permanent magnet group forms one magnetic pole, wherein, in a part of the rotor core between the radially-outer side surface and the magnet insertion hole group, a magnetic slit is formed to extend in a shape convex toward the center of the rotor from the radially-outer side surface, and wherein the magnet insertion hole group includes three magnet insertion holes.

公开(公告)号：US20200212752A1

公开(公告)日：2020-07-02

申请号：US16319532

申请日：2016-11-11

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshiaki KITTA ,  Ken NISHIKAWA ,  Yoshiki KUWAHARA ,  Fumitaka TOTSUKA ,  Yutaka IKURA ,  Koichi OJIMA ,  Masaya INOUE

IPC: H02K3/50 ,  H02K3/28 ,  H02K5/10 ,  H02K1/20 ,  H02K11/00 ,  H02K1/18

Abstract: A rotating electrical machine includes a rotor; a stator having a core annularly arranged facing the outer peripheral surface of the rotor, a coil wound around the core and having a coil end formed protruding from an end surface in the axial direction of the core, and an insulator formed on the end surface in the axial direction of the core and insulating the core and the coil; a bus bar arranged on the outer peripheral side of the coil end of the stator; and a terminal block installed on the outer peripheral side of the bus bar for introducing an electric current from an external power source to the stator, and the insulator has a groove portion in which the bus bar is held, and a terminal block housing portion in which the terminal block is held.

公开(公告)号：US20180145549A1

公开(公告)日：2018-05-24

申请号：US15575124

申请日：2016-09-12

Applicant: Mitsubishi Electric Corporation

Inventor： Tatsuro HINO ,  Kohei EGASHIRA ,  Tetsuya YOKOGAWA ,  Shinkichi SAWA ,  Akihiro YAMAMURA ,  Masaya INOUE ,  Akira HASHIMOTO ,  Masashi NAKAMURA

IPC: H02K1/18 ,  H02K3/14 ,  H02K1/16

CPC classification number: H02K1/18 ,  H02K1/16 ,  H02K1/165 ,  H02K1/276 ,  H02K3/14 ,  H02K3/28 ,  H02K3/345 ,  H02K15/024 ,  H02K15/064

Abstract: A rotary electric machine according to the present invention includes: a stator including an outer core, a plurality of inner cores, and a coil accommodated in slots, each slot being surrounded by opposing circumferential side surfaces of tooth portions of adjacent inner cores and by inner circumferential surfaces of projections of the adjacent inner cores; and a rotor. A gap is provided between the circumferential side surfaces of the adjacent inner cores. The coil has a first slot-accommodated portion and a second slot-accommodated portion accommodated in different slots, and a turn portion connecting the two slot-accommodated portions on one end surface, in an axial direction, of a stator core. The turn portion is elastically urged in a direction in which the first slot-accommodated portion and the second slot-accommodated portion move away from each other in the circumferential direction.

公开(公告)号：US20180115211A1

公开(公告)日：2018-04-26

申请号：US15560524

申请日：2015-03-31

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Masashi NAKAMURA ,  Ryuichi KITORA ,  Akihiro YAMAMURA ,  Koichi OJIMA ,  Masaya INOUE

IPC: H02K3/52 ,  H02K3/18

CPC classification number: H02K3/522 ,  H02K3/18 ,  H02K2203/09

Abstract: The rotary electric machine according to the present invention includes: a ring-shaped electrically insulating holder in which a plurality of groove portions are formed concentrically; a plurality of strip-shaped electrically conductive members that are formed so as to have strip-shaped bodies that have a rectangular cross section, and that are housed in each of the groove portions; and connecting conductors that each include: a circumferentially extending portion that extends circumferentially at the first axial end of the electrically insulating holder so as to be parallel to the strip-shaped electrically conductive member; and a radially extending portion that extends in a radial direction from an end portion at an opposite end of the circumferentially extending portion from the strip-shaped electrically conductive member by means of a bent portion, the radially extending portion at an opposite end from the bent portion being connected to the coil terminal.

公开(公告)号：US20170358974A1

公开(公告)日：2017-12-14

申请号：US15542705

申请日：2015-02-23

Applicant: Mitsubishi Electric Corporation

Inventor： Ryuji KITAMURA ,  Masashi NAKAMURA ,  Shogo OKAMOTO ,  Masaya INOUE

IPC: H02K11/20

Abstract: Obtain a rotary electric machine in which attachment of a sensor stator to a case having a cylindrical shape is not required, and a stator is inserted to the case having a cylindrical shape, whereby the sensor stator can be easily arranged at the inside of the case having a cylindrical shape. The rotary electric machine includes a rotor and a sensor rotor, which are maintained to a rotary shaft and are arranged in a shaft direction of the rotary shaft; a stator which is faced to the rotor and is arranged at the inside of a case having a cylindrical shape; and a sensor stator which is supported to sensor supporting components which are provided at end portions in a shaft direction of the stator, and is faced to the sensor rotor and is arranged.

公开(公告)号：US20170288480A1

公开(公告)日：2017-10-05

申请号：US15507992

申请日：2015-01-15

Applicant: Mitsubishi Electric Corporation

Inventor： Tadashi MURAKAMI ,  Naomi KIKUCHI ,  Atsushi SAKAUE ,  Tatsuro HINO ,  Akihiro YAMAMURA ,  Shogo OKAMOTO ,  Shinji NISHIMURA ,  Masaya INOUE

IPC: H02K1/18 ,  H02K1/14

CPC classification number: H02K1/185 ,  H02K1/148 ,  H02K1/276 ,  H02K5/1732

Abstract: While lamination of steel sheets to be included in a stator core having a plurality of tooth portions is performed through swaging at yoke portions and through swaging at tooth portions, the stator core is formed in such a way as to include the tooth portion having a portion that is pressed into another steel sheet through swaging and the tooth portion having no portion that is pressed into another steel sheet through swaging.

公开(公告)号：US20160172921A1

公开(公告)日：2016-06-16

申请号：US14904730

申请日：2013-11-08

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Manabu YOSHINORI ,  Atsushi SAKAUE ,  Tatsuro HINO ,  Hironori TSUIKI ,  Shinichi OKADA ,  Hiroki SHIOTA ,  Masaya INOUE ,  Shogo OKAMOTO ,  Shinji NISHIMURA ,  Akira HASHIMOTO ,  Shinkichi SAWA ,  Yutaka IKURA ,  Ryuichi KITORA

IPC: H02K3/34 ,  H02K1/16

CPC classification number: H02K3/34 ,  H02K1/16 ,  H02K1/165 ,  H02K3/28 ,  H02K3/345 ,  H02K15/12

Abstract: A side surface at the outside of a plurality of teeth portions of one separated core is faced to a side surface of teeth portions of an adjacent separated core, so as to form a second slot which is straddled between the adjacent separated cores, and a first slot is formed by a plurality of teeth portions of one separated core, and a width size of the first slot is identical to a width size of the second slot, and coil conductor storage space is formed in the first slot via a first insulating component, and coil conductor storage space is formed in the second slot via a second insulating component, and a thickness size of the first insulating component is different from a thickness size of the second insulating component.

Abstract translation: 一个分离的芯的多个齿部分的外侧的侧表面相对于相邻的分离的芯的齿部分的侧表面，以形成跨在相邻的分离的芯之间的第二槽，并且第一 槽由一个分离的芯的多个齿部分形成，并且第一槽的宽度尺寸与第二槽的宽度尺寸相同，并且线圈导体存储空间经由第一绝缘构件形成在第一槽中， 并且经由第二绝缘部件在第二槽中形成线圈导体存储空间，并且第一绝缘构件的厚度尺寸与第二绝缘构件的厚度尺寸不同。

公开(公告)号：US20160149450A1

公开(公告)日：2016-05-26

申请号：US14899604

申请日：2013-08-05

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Masaki HORII ,  Masaya INOUE ,  Yoshiaki KITTA

IPC: H02K1/32 ,  H02K11/25 ,  H02K1/30 ,  H02K9/19 ,  H02K1/16 ,  H02K1/27

CPC classification number: H02K1/32 ,  H02K1/16 ,  H02K1/2766 ,  H02K1/30 ,  H02K9/19 ,  H02K11/25

Abstract: A permanent magnet 21 is housed in a magnet housing aperture 20, an adhesive is disposed only between an outside wall surface 20a that is positioned on a radially outer side of an inner wall surface of the magnet housing aperture 20 and an outside surface 21a that is positioned on a radially outer side of a surface of the permanent magnet 21 such that the permanent magnet 21 is fixed so as to be closer to the outside wall surface 20a, and a cooling flow channel 23 through which a coolant is made to flow is formed by an inside surface 21b that is positioned on a radially inner side of the surface of the permanent magnet 21 and an inside wall surface 20b that is positioned on a radially inner side of the inner wall surface of the magnet housing aperture 20.

Abstract translation: 永磁体21容纳在磁体容纳孔20中，粘合剂仅设置在位于磁体容纳孔20的内壁表面的径向外侧的外壁表面20a和位于磁体容纳孔20的内表面之间的外表面21a之间 定位在永磁体21的表面的径向外侧上，使得永磁体21被固定成更靠近外壁表面20a，并且形成冷却剂流过的冷却流道23 通过位于永磁体21的表面的径向内侧的内表面21b和位于磁体容纳孔20的内壁表面的径向内侧的内壁表面20b。

公开(公告)号：US20160043615A1

公开(公告)日：2016-02-11

申请号：US14773951

申请日：2013-04-26

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Shinsuke KAYANO ,  Masaya INOUE ,  Shinji NISHIMURA

IPC: H02K11/00 ,  H02K1/27

CPC classification number: H02K11/0094 ,  H02K1/27 ,  H02K11/25 ,  H02P29/662

Abstract: A magnet temperature estimation device includes: a voltage detector (1) for detecting a voltage at a time when a winding is energized; a high-order component detector (2) for detecting a high-order component of the voltage; a reference database (3) for storing in advance, as a table, a correspondence relationship between the high-order component and two or more parameters, which include a magnet temperature and another one or more parameters, as parameters affecting the voltage from which the high-order component is detected; a parameter value detector (4) for detecting a value of the another one or more parameters; and a magnet temperature estimator (5) for estimating a magnet temperature corresponding to the high-order component detected by the high-order component detector based on the another one or more parameters detected by the parameter value detector and the table stored in the reference database.

Abstract translation: 磁体温度估计装置包括：电压检测器（1），用于检测绕组通电时的电压; 用于检测电压的高阶分量的高阶分量检测器（2）; 参考数据库（3），用于预先存储包括磁体温度和另一个或多个参数的两个或多个参数之间的高阶分量与两个或多个参数之间的对应关系作为表格，作为影响电压的参数 检测到高阶分量; 参数值检测器（4），用于检测另一个或多个参数的值; 以及磁体温度估计器（5），用于基于由参数值检测器检测到的另一个或多个参数和存储在参考数据库中的表来估计与高阶分量检测器检测到的高阶分量相对应的磁体温度 。

公开(公告)号：US20150302988A1

公开(公告)日：2015-10-22

申请号：US14646876

申请日：2014-01-21

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Yutaro SHIRAI ,  Hiroyuki AKITA ,  Atsushi SAKAUE ,  Shinichiro YOSHIDA ,  Masaya INOUE

IPC: H01F41/06 ,  B21F3/04

CPC classification number: H01F41/071 ,  B21F1/00 ,  B21F3/04 ,  H01F41/082 ,  H01F2017/046 ,  H02K15/045

Abstract: Provided is a rectangular wire edgewise-bending processing device for performing an edgewise-bending process for a rectangular wire to form a coil, the rectangular wire edgewise-bending processing device including a fixing unit for fixing the rectangular wire, a pressing tool for pressing a surface formed by a long side of a rectangular cross section of the rectangular wire, and a bending tool for bending the rectangular wire into a predetermined coil shape, wherein the edgewise-bending process is performed while the surface formed by the long side of the rectangular cross section of the rectangular wire is pressed.

Abstract translation: 本发明提供一种矩形线边长弯曲加工装置，用于对矩形线进行边缘弯曲加工以形成线圈，所述矩形线边缘弯曲加工装置包括用于固定矩形线的定影单元， 由矩形截面的长边形成的表面，以及用于将矩形线弯曲成预定线圈形状的弯曲工具，其中，沿长方形形成的表面进行边缘弯曲加工 矩形线的横截面被按压。