公开(公告)号：US12043734B2

公开(公告)日：2024-07-23

申请号：US16935320

申请日：2020-07-22

Applicant: Mitsubishi Electric Corporation

Inventor： Naoki Yasuda ,  Shiori Natori ,  Kazuya Hasegawa ,  Shogo Okamoto

IPC: C08L63/00 ,  C08K3/22 ,  C08K3/26 ,  C08K3/36 ,  C08L67/00

CPC classification number: C08L63/00 ,  C08L67/00 ,  C08K2003/2227 ,  C08K2003/265 ,  C08K3/36 ,  C08K2201/003

Abstract: The thermosetting resin composition is used for a sheet-form insulating varnish to be disposed in a gap between insulation target members, and contains: a thermosetting resin (A) that is in solid form at 25° C.; a thermosetting resin (B) that is in liquid form at 25° C.; a latent curing agent that is unreactive at 60° C. or lower; and an inorganic filler having a maximum particle diameter smaller than a dimension of the gap and having an average particle diameter smaller than 0.5 times the dimension of the gap. 30 parts by mass to 70 parts by mass of the thermosetting resin (A) is contained per a total of 100 parts by mass of the thermosetting resin (A) and the thermosetting resin (B). A volume ratio of the inorganic filler to an entirety of the composition is not higher than 50%.

公开(公告)号：US10727713B2

公开(公告)日：2020-07-28

申请号：US16303203

申请日：2016-06-01

Applicant: Mitsubishi Electric Corporation

Inventor： Kazuya Hasegawa ,  Mitsuyasu Okamoto

IPC: H02K3/34 ,  H02K1/18 ,  H02K15/12 ,  H02K15/02 ,  H02K1/04 ,  H02K3/52

Abstract: A rotary electric machine according to the present invention includes: a stator including: a stator core; and a stator winding that is mounted to the stator core, and into which a varnish is impregnated, the stator being held by a housing in a state in which housing interfitting surfaces on two axial end surfaces of a core back portion are clamped by the housing from two axial ends, wherein a varnish leakage stopping portion is formed radially inside the housing interfitting surfaces on two axial end surfaces of the stator core so as to interrupt flow pathways of the varnish from a radially inner side onto the housing interfitting surfaces.

公开(公告)号：US09472994B2

公开(公告)日：2016-10-18

申请号：US14780167

申请日：2013-07-05

Applicant: Mitsubishi Electric Corporation

Inventor： Kazunori Tanaka ,  Kazuya Hasegawa ,  Shintaro Shimizu ,  Atsushi Oohashi

IPC: H02K5/16 ,  F16C35/077 ,  F16C19/52 ,  H02K5/02

CPC classification number: H02K5/161 ,  F16C19/06 ,  F16C19/525 ,  F16C27/04 ,  F16C35/077 ,  F16C2202/22 ,  F16C2380/26 ,  H02K5/02 ,  H02K5/16

Abstract: The present invention provides an AC generator for a vehicle, in which a resin case (26) includes convex portions (33) formed on an outer circumferential surface of the resin case (26) so as to extend in an axial direction of the resin case (26) to be brought into pressure-contact with an inner circumferential wall surface of a counter drive-side bearing housing portion (24), and convex portions (34) formed on an inner circumferential surface of the resin case (26) so as to be opposed to the convex portions (33). The concave portions (34) allow displacement of the convex portions (33) in a radially inward direction of the resin case (26). By an elastic force generated by the displacement of the convex portions (33), the resin case (26) is integrated with the counter drive-side bearing housing portion (24).

Abstract translation: 本发明提供一种用于车辆的交流发电机，其中树脂箱（26）包括形成在树脂壳体（26）的外周表面上的凸部（33），以沿着树脂壳体的轴向延伸 （26）与对置驱动侧轴承收纳部（24）的内周壁面压力接触，形成在树脂箱（26）的内周面上的凸部（34）成为 与凸部（33）相对。 凹部（34）允许凸部（33）在树脂箱（26）的径向向内方向上移位。 通过由凸部（33）的位移产生的弹力，树脂箱（26）与对置驱动侧轴承壳体部（24）一体化。

公开(公告)号：US09397542B2

公开(公告)日：2016-07-19

申请号：US14830051

申请日：2015-08-19

Applicant: Mitsubishi Electric Corporation

Inventor： Kazuya Hasegawa ,  Kazunori Tanaka ,  Yoshiro Imazawa ,  Yoshihiro Harada

IPC: H02K15/06 ,  H02K15/02 ,  H02K15/04 ,  H02K3/12 ,  H02K15/00

CPC classification number: H02K15/062 ,  H02K3/12 ,  H02K15/0037 ,  H02K15/026 ,  H02K15/0435 ,  H02K15/0478 ,  H02K15/06 ,  H02K15/063 ,  H02K15/066 ,  Y10T29/49009 ,  Y10T29/49011

Abstract: The stator winding has winding assemblies that are disposed in a stator core so as to be stacked in three or more layers in a radial direction such that slot-housed portions line up in single columns in a slot depth direction inside slots, and radial widths of return portions of the winding assemblies that are mounted so as to be stacked in a radial direction are made sequentially narrower in order of return portions of a winding assembly that is positioned centrally, return portions of a winding assembly that is positioned on an inner circumferential side, and return portions of a winding assembly that is positioned on an outer circumferential side.

Abstract translation: 定子绕组具有设置在定子铁芯中的绕组组件，以沿径向方向堆叠成三层或更多层，使得狭槽容纳部分在狭槽内的槽深度方向上以单列排列，并且径向宽度 沿着径向堆叠地安装的绕组组件的返回部分按照位于中心的绕组组件的返回部分的顺序依次变窄，位于内周侧的绕组组件的返回部分 以及位于外周侧的卷绕组件的返回部分。

公开(公告)号：US12163847B2

公开(公告)日：2024-12-10

申请号：US17565625

申请日：2021-12-30

Applicant: Mitsubishi Electric Corporation

Inventor： Tatsuro Hino ,  Kazuya Hasegawa ,  Kengo Kumagai

IPC: G01K3/06 ,  G01K3/04 ,  G05B9/02 ,  H02M1/00 ,  H02M7/537

Abstract: To provide a controller and a control method which can estimate a temperature of the temperature estimation with good accuracy without depending on detection information of other sensors other than the temperature sensor, even if the temperature sensor is attached to a position away from the temperature estimation point. A controller is provided with a sensor temperature detector that detects a sensor temperature based on an output signal of a temperature sensor attached to a temperature estimation object; and a temperature estimator that calculates an estimated temperature of the temperature estimation point, based on the current detection value of sensor temperature or the current correction value of sensor temperature, the detection value of sensor temperature before the step time or the correction value of sensor temperature before the step time, and a thermal time constant.

公开(公告)号：US11843289B2

公开(公告)日：2023-12-12

申请号：US17350278

申请日：2021-06-17

Applicant: Mitsubishi Electric Corporation

Inventor： Akihito Mori ,  Naoya Hashimoto ,  Kiyoshi Nakano ,  Kazuya Hasegawa ,  Norihiro Murata ,  Tomoyuki Kinoshita ,  Kensaku Kuroki

IPC: H02K15/02 ,  B21D28/26

CPC classification number: H02K15/024 ,  B21D28/26

Abstract: In a method for manufacturing a core element which is used for a divisional layer stack core of a rotary electric machine, the method includes: a first punch cutting out process for punch cutting out a first core element having a product shape, from a belt like electromagnetic steel sheet, with a press mechanism which has a feeding device of the electromagnetic steel sheet, a feeding process for feeding the electromagnetic steel sheet, with the feeding device, and a second punch cutting out process for positioning with a product shaped pilot which has an external shape of the core element, using a punch cut out trace shape of the first core element, and producing a second core element having the product shape, by punch cutting out with the press mechanism.

公开(公告)号：US20230327523A1

公开(公告)日：2023-10-12

申请号：US18091613

申请日：2022-12-30

Applicant: Mitsubishi Electric Corporation

Inventor： Jumpei YASUTOMI ,  Hironori Tsuiki ,  Kazuya Hasegawa

IPC: H02K11/25 ,  H02K1/16 ,  H02K3/28

CPC classification number: H02K11/25 ,  H02K1/16 ,  H02K3/28

Abstract: Provided is a stator in which size increase in the radial direction is suppressed and accuracy of temperature detection is improved. The stator includes: a cylindrical stator core; a plurality of coil conductors each having a coil body located in a slot of the stator core and a conductor end protruding from the stator core; a plurality of connection wires extending in a circumferential direction of the stator core and connecting the conductor ends separated from each other in the circumferential direction; and a temperature sensor, wherein at least two of the connection wires have parts arranged with an interval therebetween in an axial direction of the stator core, and the temperature sensor is located in the interval and held between the connection wires on both sides in the axial direction.

公开(公告)号：US11594927B2

公开(公告)日：2023-02-28

申请号：US17082505

申请日：2020-10-28

Applicant: Mitsubishi Electric Corporation

Inventor： Tatsuro Hino ,  Katsuya Ito ,  Hiroyuki Yasuda ,  Tatsuki Kawashima ,  Kazuya Hasegawa

IPC: H02K3/24 ,  H02K3/14 ,  H02K15/04

Abstract: Provided is a rotating electric machine capable of downsizing a coil end. The rotating electric machine includes an armature core and a plurality of coils. The plurality of coils each include a plurality of turn portions. The plurality of turn portions each include an inner-layer-side turn portion and an outer-layer-side turn portion. The inner-layer-side turn portion includes a first inner-layer-side bent portion, a first inner-layer-side oblique portion, and an inner-layer-side shift portion which is twisted. The outer-layer-side turn portion includes a first outer-layer-side bent portion, a first outer-layer-side oblique portion, and an outer-layer-side shift portion. The outer-layer-side shift portion has the inner-layer-side shift portion arranged between the outer-layer-side shift portion and the armature core.

公开(公告)号：US11108310B2

公开(公告)日：2021-08-31

申请号：US16342056

申请日：2016-11-11

Applicant: Mitsubishi Electric Corporation

Inventor： Kazuya Hasegawa

IPC: H02K1/22 ,  H02K21/04 ,  H02K3/32 ,  H02K9/06 ,  H02K1/24 ,  H02K3/24

Abstract: This rotary electric machine rotor includes: a Lundell core that includes a cylindrical portion, a pair of yoke portions, and a plurality of claw-shaped magnetic pole portions; a bobbin that is mounted around an outer circumference of the cylindrical portion; a field coil that is wound onto the bobbin in multiple layers, the field coil contacting a vicinity of roots of inner circumferential surfaces of the claw-shaped magnetic pole portions; and a cooling fan that supplies air to an outer circumferential surface of the field coil, wherein the field coil is formed so as to have a peaked shape in which two or more peaks line up consecutively in an axial direction, an apex portion of each of the peaks being positioned radially further outward than a root position of the claw-shaped magnetic pole portions.

公开(公告)号：US12165788B2

公开(公告)日：2024-12-10

申请号：US17082751

申请日：2020-10-28

Applicant: Mitsubishi Electric Corporation

Inventor： Shiori Natori ,  Naoki Yasuda ,  Kazuya Hasegawa ,  Kenji Maekawa ,  Yasuhiro Hayasaka

IPC: H01B3/44 ,  H01B3/30 ,  H01B3/40 ,  H01B3/42 ,  H01B19/00 ,  H02K3/30 ,  H02K3/34 ,  H02K15/10

Abstract: In the insulation sheet, an insulation resin layer made of a thermosetting resin composition in an uncured or semi-cured state is formed on one or each of both surfaces of the base material. The thermosetting resin composition contains: a thermosetting resin (A) that is in solid form at 25° C.; a thermosetting resin (B) that is in liquid form at 25° C.; a latent curing agent that is unreactive at 60° C. or lower; and an inorganic filler having a maximum particle diameter smaller than a film thickness of the insulation resin layer and having an average particle diameter smaller than 0.5 times the film thickness. The insulation resin layer of the insulation sheet is efficiently compressed into a predetermined thickness by pressure application at normal temperature and permeates a gap between a stator core and a stator coil by heating during curing treatment, whereby both members can be insulated and fixed.