公开(公告)号：US11088601B2

公开(公告)日：2021-08-10

申请号：US16097900

申请日：2017-04-27

Applicant: Mitsubishi Electric Corporation

Inventor： Tatsuro Hino ,  Yuichiro Ikeuchi ,  Kohei Egashira ,  Tetsuya Yokogawa ,  Masashi Nakamura ,  Masaya Inoue

IPC: H02K15/02 ,  H02K3/48 ,  H02K15/085 ,  H02K1/16 ,  H02K1/18

Abstract: This method includes: a coil assembly step of combining a plurality of coil units to form a coil basket; a core insertion step of inserting inner cores of in the radial direction to the coil basket; and a fixation member insertion step of inserting a fixation member to the outer circumference of the inner core. In the core insertion step, the radial-direction position of the coil basket is retained at a core insertion time position shifted outward in the radial direction relative to a normal position after armature completion, and the inner cores are inserted in the radial direction to the coil basket. After the core insertion step, the radial-direction positions of the coil basket and the inner cores are moved inward in the radial direction to the normal position after armature completion.

公开(公告)号：US10819175B2

公开(公告)日：2020-10-27

申请号：US15556915

申请日：2016-05-17

Applicant: Mitsubishi Electric Corporation

Inventor： Tatsuro Hino ,  Kohei Egashira ,  Tetsuya Yokogawa ,  Hiroyuki Akita ,  Akira Hashimoto ,  Masashi Nakamura

IPC: H02K1/16 ,  H02K3/12 ,  H02K15/02 ,  H02K15/06 ,  H02K3/28 ,  H02K1/14 ,  H02K3/18 ,  H02K3/34

Abstract: A unit coil includes: first, second, third, and fourth turn portions extending in a bent manner from first, second, third, and fourth slot accommodation portions and each connecting the slot accommodation portions to each other; and first, second, third, and fourth leg portions. Recesses are formed in surfaces opposed to each other at bent parts of the turn portions or bent parts of the turn portion and the leg portion, that extend in a bent manner toward the same side in the circumferential direction from the slot accommodation portions adjacent to each other in the radial direction.

公开(公告)号：US10243418B2

公开(公告)日：2019-03-26

申请号：US15240394

申请日：2016-08-18

Applicant: Mitsubishi Electric Corporation

Inventor： Masashi Nakamura ,  Kohei Egashira ,  Tatsuro Hino ,  Tetsuya Yokogawa ,  Shinkichi Sawa

IPC: H02K3/12 ,  H02K3/50 ,  H02K3/28 ,  H02K1/16

Abstract: A three-phase alternating-current winding is configured by connecting first conductor terminals and second conductor terminals that are disposed in a circular arc-shaped region using connecting units, electric power supplying terminals of the three-phase alternating-current winding are constituted by the first conductor terminals and the second conductor terminals that are disposed in the circular arc-shaped region, a number of parallel phase windings in the three-phase alternating-current winding is n, where n is a natural number that is greater than or equal to one, an angular range of the circular arc-shaped region is less than or equal to (180×n) electrical degrees, and the second conductor terminals that constitute the electric power supplying terminals are positioned between adjacent first conductor terminals when viewed from a radially outer side.

公开(公告)号：US09705374B2

公开(公告)日：2017-07-11

申请号：US15307286

申请日：2015-04-28

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Tatsuro Hino ,  Akihiro Yamamura ,  Shuichi Tamura ,  Akira Hashimoto ,  Tetsuya Yokogawa ,  Atsushi Sakaue ,  Kazunori Muto

IPC: H02K3/38 ,  H02K3/04 ,  H02K15/10 ,  H02K3/34 ,  H02K3/12

CPC classification number: H02K3/345 ,  H02K3/12 ,  H02K3/38 ,  H02K15/105

Abstract: A radially outer insulating paper includes: an annular radially outer insulating paper base portion that is disposed on a radially inner side of a row of first coil terminals; and radially outer insulating paper protruding portions that each protrude radially outward from an axially outer end portion of the radially outer insulating paper base portion, and that are inserted between adjacent first coil terminals axially further outward than second bent portions; and a radially inner insulating paper includes: an annular radially inner insulating paper base portion that is disposed on a radially outer side of a row of second coil terminals; and radially inner insulating paper protruding portions that each protrude radially inward from an axially outer end portion of the radially inner insulating paper base portion, and that are inserted between adjacent second coil terminals axially further outward than fourth bent portions.

公开(公告)号：US10411539B2

公开(公告)日：2019-09-10

申请号：US15092735

申请日：2016-04-07

Applicant: Mitsubishi Electric Corporation

Inventor： Masashi Nakamura ,  Kohei Egashira ,  Tatsuro Hino ,  Tetsuya Yokogawa ,  Shinkichi Sawa

IPC: H02K3/28 ,  H02K1/16 ,  H02K3/12 ,  H02K15/02 ,  H02K15/085 ,  H02K15/04 ,  H02K1/27 ,  H02K3/50

Abstract: Winding bodies include: a first terminal wire that extends outward at a first axial end of a stator core from a radially innermost position inside slots; and a second terminal wire that extends outward at the first axial end of the stator core from a radially outermost position inside the slots, the first terminal wires are each led radially outward over coil ends of the stator winding, the second terminal wires are each led radially outward at positions that are nearer to the stator core than end portions of the first terminal wires that are led radially outward over the coil ends of the stator winding, and end portions of intraphase connecting second terminal wires are stacked in an axial direction with, placed in contact with, and connected to end portions of intraphase connecting first terminal wires that are subject to connection therewith.

公开(公告)号：US09819238B2

公开(公告)日：2017-11-14

申请号：US14196569

申请日：2014-03-04

Applicant: MITSUBISHI ELECTRIC CORPORATION

Inventor： Yutaka Ikura ,  Shinkichi Sawa ,  Tatsuro Hino ,  Tetsuya Yokogawa ,  Atsushi Sakaue

IPC: H02K3/00 ,  H02K3/12 ,  H02K3/34

CPC classification number: H02K3/12 ,  H02K3/345 ,  H02K2213/09

Abstract: Obtain a rotary electric machine by which a share of coil slots for a stator winding in slots, which are formed in a stator core, can be increased, and heat generation at a central portion of a stator can be decreased. The stator winding is composed of coil slots, which are inserted to the slots, and coil ends extended toward the outside in the axis direction of the stator core; and the coil conductors of the coil slots are configured in such a way that cross-sectional areas at central portions in the axis direction are wider cross-sectional areas at both end portions, and the cross-sectional areas of the coil conductors are reduced along the coil slots from the central portions to the both end portions.

公开(公告)号：US20150084449A1

公开(公告)日：2015-03-26

申请号：US14196569

申请日：2014-03-04

Applicant: Mitsubishi Electric Corporation

Inventor： Yutaka IKURA ,  Shinkichi Sawa ,  Tatsuro Hino ,  Tetsuya Yokogawa ,  Atsushi Sakaue

IPC: H02K3/24 ,  H02K3/12 ,  H02K3/34

CPC classification number: H02K3/12 ,  H02K3/345 ,  H02K2213/09

Abstract: Obtain a rotary electric machine by which a share of coil slots for a stator winding in slots, which are formed in a stator core, can be increased, and heat generation at a central portion of a stator can be decreased. The stator winding is composed of coil slots, which are inserted to the slots, and coil ends extended toward the outside in the axis direction of the stator core; and the coil conductors of the coil slots are configured in such a way that cross-sectional areas at central portions in the axis direction are wider cross-sectional areas at both end portions, and the cross-sectional areas of the coil conductors are reduced along the coil slots from the central portions to the both end portions.

Abstract translation: 获得旋转电机，通过该旋转电机可以增加在定子铁心中形成的用于定子绕组的定子绕组的线圈槽的一部分，并且可以减小定子的中心部分的发热。 定子绕组由插入槽中的线圈槽和沿着定子铁芯的轴线方向向外延伸的线圈构成。 并且线圈槽的线圈导体被构造成使得轴向中心部分的横截面积在两端部处具有较宽的横截面面积，并且线圈导体的横截面积沿着 线圈槽从中心部分到两端部分。