公开(公告)号：US20210265882A1

公开(公告)日：2021-08-26

申请号：US17253624

申请日：2019-04-12

Applicant: Mitsubishi Electric Corporation

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

IPC: H02K1/27 ,  H02K21/14

Abstract: Provided is a rotating electric machine (100) including a stator (1) and a rotor (2). The rotor (2) includes a plurality of stages of rotor units (201 and 202) stacked in an axial direction. Each of the rotor units (201 and 202) includes a pair of permanent magnets (21) and slits (22a and 22b) arranged in one or more rows. The slits (22a and 22b) has an arc-like shape. Both ends of the arc-like shape are located on an outer periphery side of the rotor (2). When an angle formed between two straight lines that connect positions of both ends of the arc-like shape and a rotation axis center of the rotor (2) is defined as an arc angle, at least one of the arc angle of the slit (22a) and the number of rows of the slits is different between at least two rotor units (201 and 202).

公开(公告)号：US20200284664A1

公开(公告)日：2020-09-10

申请号：US16758116

申请日：2017-11-24

Applicant: Mitsubishi Electric Corporation

Inventor： Kenzo MAKINO ,  Hideaki ARITA ,  Masaya INOUE ,  Junji HORI ,  Hiroshi ARAKI ,  Yoshitsugu SAWA ,  Wataru TSUJITA

IPC: G01K7/32 ,  G01K1/02

Abstract: A temperature detection device includes: a detection processing unit configured to transmit a transmission radio wave, simultaneously receive a response radio wave corresponding to the transmission radio wave, and detect whether a temperature of an object to be measured is normal or abnormal based on the response radio wave; and a temperature sensing unit configured to receive the transmission radio wave and transmit the response radio wave responding to the transmission radio wave. The detection processing unit calculates, from the response radio wave received via a second antenna, an amplitude, a phase, or a quadrature phase amplitude of the response radio wave and compares the temperature of the object to be measured to a temperature determined in advance based on a result of the calculation.

公开(公告)号：US20190260255A1

公开(公告)日：2019-08-22

申请号：US16336138

申请日：2016-11-16

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshiki KUWAHARA ,  Ryuji KITAMURA ,  Yoshiaki KITTA ,  Fumitaka TOTSUKA ,  Koichi OJIMA ,  Masaya INOUE

IPC: H02K3/32 ,  H02K1/14 ,  H02K3/52

Abstract: A rotating electric machine includes a rotor, a stator, and a case, wherein each of the sub stator cores has a first insulated bobbin, a stator iron core, a second insulated bobbin, and a coil, and the coil is disposed in teeth parts of the first insulated bobbin, the stator iron core, and the second insulated bobbin, all of which are stacked in layers, and the first insulated bobbin has three ring holding parts which are formed in a core back part and extend to a circumferential direction, and the bus rings are separately inserted into the ring holding parts formed in the first insulated bobbin, and the first insulated bobbin, the stator iron core, and the second insulated bobbin each has a convex part formed at one side face of the core back part and a concave part formed at the other side face of the core back part.

公开(公告)号：US20190115800A1

公开(公告)日：2019-04-18

申请号：US16070852

申请日：2016-05-23

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Manabu YOSHINORI ,  Masaya INOUE ,  Yoshiaki KITTA

IPC: H02K5/173 ,  H02K9/19 ,  F16C33/66

Abstract: A rotating electrical machine includes: an oil reception part that has an opening opposed to an injection hole designed to inject ATF into the atmospheric pressure inside a housing; and an oil reservoir that communicates with the oil reception part via a communicating hole provided in a wall part and communicates with a rotor cooling oil channel of a shaft via a cooling oil lead-in hole provided in the wall part. Since ATF having flowed out of the oil reception part flows along an inner face of the wall part of a second housing by gravity and reaches a bearing, one ATF supply route can be used both for cooling a rotor and lubricating a bearing, whereby the ATF supply route can be simplified.

公开(公告)号：US20180226852A1

公开(公告)日：2018-08-09

申请号：US15577386

申请日：2015-10-29

Applicant: Mitsubishi Electric Corporation

Inventor： Ryuji KITAMURA ,  Shogo OKAMOTO ,  Masaya INOUE

IPC: H02K3/28 ,  H02K1/16 ,  H02K3/12

CPC classification number: H02K3/28 ,  H02K1/16 ,  H02K3/12 ,  H02K3/522 ,  H02K15/095 ,  H02K2203/12

Abstract: A stator coil has a first layer wound around a tooth portion of a stator core-sequentially from the radially outer side to the radially inner side of a stator, and is wound while a winding direction is reversed for each layer. If the outermost layer is denoted by n (n is an odd number equal to or greater than 3) and the final turn in each layer is denoted by m (m is equal to or greater than 2), the m-th turn in the n-th layer is wound on the radially outer side of the stator, the stator coil on the radially inner side is lane-changed on a shorter-side tooth portion, and a part of the stator coil on the radially outer side in the outermost layer is lane-changed on a longer-side tooth portion.

公开(公告)号：US20170271958A1

公开(公告)日：2017-09-21

申请号：US15505304

申请日：2014-10-28

Applicant: Mitsubishi Electric Corporation

Inventor： Yoshiaki KITTA ,  Koichi OJIMA ,  Katsunari TAKAGI ,  Masaya INOUE ,  Hiroyuki HIGASHINO

IPC: H02K9/19

Abstract: In order to efficiently cool a stator and rotor of a rotating electrical machine, cooling oil is supplied by a pump in a pressurized state to a first reservoir portion provided in an upper portion inside a housing, and after the cooling oil is ejected from the first reservoir portion, the cooling oil is guided to a stator coil end cooling structure, and to a rotor bearing and rotor core cooling structure, using the weight of the cooling oil itself.

公开(公告)号：US20160380492A1

公开(公告)日：2016-12-29

申请号：US15038851

申请日：2014-12-15

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Sachiko KAWASAKI ,  Kimiyasu FURUSAWA ,  Atsushi SAKAUE ,  Akira HASHIMOTO ,  Hiroyuki AKITA ,  Moriyuki HAZEYAMA ,  Masaya INOUE ,  Shinji NISHIMURA

IPC: H02K1/27 ,  H02K1/14 ,  H02K21/16

CPC classification number: H02K1/2766 ,  H02K1/146 ,  H02K21/16 ,  H02K2213/03

Abstract: A contour line on the outer circumferential side of each magnet hole in the first layer is formed to be an arc passing through a total of three intersections, i.e., an intersection of a d axis and a reference magnetic flux line which is a magnetic flux line as a reference positioned inward by a predetermined number of magnetic flux lines from the outer circumferential edge of a rotor core, and intersections of: the reference magnetic flux line; and sides at the circumferential ends of the magnet hole which are positioned inward by a bridge dimension from the outer circumferential edge of the rotor core. Thus, a rotary electric machine that enables maximum utilization of reluctance torque and magnet torque and suppression of torque ripple can be obtained with simple processing and low cost.

Abstract translation: 第一层中每个磁体孔的外周侧上的轮廓线形成为通过总共三个交点的弧，即作为磁通线的参考磁通线的交点作为 从转子铁芯的外周边缘向内设置预定数量的磁通线的参考线，以及参考磁通线的交点; 并且位于从转子芯的外周边缘向内设置有桥接尺寸的磁体孔的周向端部侧。 因此，可以通过简单的处理和低成本获得能够最大限度地利用磁阻转矩和磁铁转矩并抑制转矩脉动的旋转电机。

公开(公告)号：US20160294257A1

公开(公告)日：2016-10-06

申请号：US14718546

申请日：2015-05-21

Applicant: Mitsubishi Electric Corporation

Inventor： Tadashi MURAKAMI ,  Yukitaka SAKATA ,  Yoshiaki KITTA ,  Katsunari TAKAGI ,  Koichi OJIMA ,  Masaya INOUE

IPC: H02K9/19

CPC classification number: H02K9/19

Abstract: An electric rotating machine that can raise the utilization efficiency of cooling oil is obtained. In an rotation axle, there are provided an oil flow path having a predetermined length from an end of the rotation axle and a flow path hole that communicates with the oil flow path and has an opening toward the inside of the electric rotating machine; a supporting member includes a cylinder section and a disk section that partitions the cylinder section in the axis direction, and a discharging hole is provided at an end of the cylinder section; between the flow path hole and the discharging hole, there is provided a partition plate that encloses a space formed by the supporting member and the rotation axle and guides cooling oil traveling from the flow path hole to the inside of the electric rotating machine to the discharging hole.

Abstract translation: 获得可提高冷却油利用率的电动旋转机。 在旋转轴中设置有从旋转轴的端部开始的预定长度的油流路和与油流路连通且具有朝向旋转电机内部的开口的流路孔; 支撑构件包括：气缸部分和在气缸部分沿轴向方向分隔的圆盘部分，并且排出孔设置在气缸部分的端部; 在流路孔和排出孔之间设置有分隔板，该隔板包围由支撑构件和旋转轴形成的空间，并且将从流路孔向旋转机械内部行进的冷却油引导到排出口 孔。

公开(公告)号：US20150318754A1

公开(公告)日：2015-11-05

申请号：US14649989

申请日：2013-04-15

Applicant: Mitsubishi Electric Corporation

Inventor： Ken NISHIKAWA ,  Masaya INOUE ,  Koichi OJIMA

IPC: H02K5/15

CPC classification number: H02K5/15 ,  H02K1/185 ,  H02K5/04 ,  H02K15/0006

Abstract: It is an object of the present invention, to provide a rotor-holding structure of a rotating electrical machine for hybrid-vehicle, the structure being capable of ensuring a space is present between a stator and a rotor. A rotating electrical machine includes a stator and a rotor, the stator being fixed to a housing, and the rotor being disposed opposite to stator across a predetermined space, wherein the rotor has a rotor boss section, a rotor core, and a permanent magnet. The rotor boss section is rotatably attached to the housing through a bearing. The rotor core and the permanent. magnet are attached to the rotor boss section. Multiple through-holes are provided at the respective corresponding locations of the housing and the rotor boss section. A supporting member is passed through each of the through-holes, thereby holding the rotor boss section.

Abstract translation: 本发明的目的是提供一种用于混合动力车辆的旋转电机的转子保持结构，该结构能够确保在定子和转子之间存在空间。 旋转电机包括定子和转子，定子固定在壳体上，转子与定子相对设置在预定的空间上，其中转子具有转子凸台部分，转子芯和永磁体。 转子凸台部通过轴承可转动地安装在壳体上。 转子铁芯和永磁体。 磁体连接到转子凸台部分。 在壳体和转子凸台部分的相应的相应位置处设置有多个通孔。 支撑构件穿过每个通孔，从而保持转子凸台部分。