Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Hirotaka Kawaura

Shingo Hashimoto

Norihiko Akao

Takanori Ota

Hiroyuki Tanaka

Daichi Kurashige

Shingo Sato

Tetsuya Sugimoto

Hiroharu Sugiura

Osamu Nakagawa

Kirika Yoshikawa

Hisayuki Kobayashi

Daisuke Matsuo

Katsuya Ito

Hisao Miyata

Takeshi Yokoyama

Kazuya Iwatsuki

Takahiro Hashimoto

Yukihiko Nakagami

Keita Okumura

Tsutomu Ogawa

Takato Harada

Yutaka Seno

Akira Yoshida

Mizuki Igarashi

Akihiro Iwasa

Hiroki Imada

A conductor shaping apparatus with first and second shaping dies that are movable toward and away from each other along a first direction, and that are moved toward each other to shape the at least one first bent portion and the at least one second bent portion, wherein one of the first and second shaping dies is configured to be moved away from the other along a second direction that is different from the first direction such that the conductor is not dragged when the first and second shaping dies are moved away from each other along the first direction after shaping of the first and second bent portions is completed.

Conductor shaping apparatus and method

A method of manufacturing a stator for a rotary electric machine by disposing coils in a plurality of phases on a plurality of teeth of a stator core, one coil on one tooth, wherein in sequentially disposing the coils in the plurality of phases on the teeth, one coil on one tooth, toward one side in the circumferential direction of the stator core, the one end portion of each of the coils in each phase is inserted from the one side in the axial direction of the stator core, or from a direction that is orthogonal to the axial direction of the stator core, to be disposed between the one end portion and the other end portion of the immediately preceding coil in a separate phase disposed on the tooth so as to be aligned with the other end portion of the coil in the same phase.

Method of manufacturing stator for rotary electric machine

A three phase stator configured with phases that are U-phase, V-phase, and W-phase. The stator is configured such that a bus bar portion includes a joint that is formed at an end and is joined to a terminal portion of a different one of the coils. A connecting portion is formed between the joint portion and the winding portion. In the coils, a first coil and a second coil serve as the two coils joined to each other by the joint portion of the bus bar portion of the first coil and the terminal portion of the second coil, and ends of the terminal portions of middle coils are the coils disposed between the first coil and the second coil are located at a height closer to the stator core than the connecting portion of the first coil in a direction of a central axis of the stator core.

Stator and manufacturing method of stator

A coil end shaping apparatus shapes three flatwise bent portions fto fin a lead wire portion extending from one end of a coil by bringing first and second shaping dies close to each other such that one of the flatwise bent portions is bent in the direction that is opposite to the direction in which the rest are bent. The second shaping die, which is a movable die, has an clearance portion that prevents a portion of the lead wire portion to be bent along the flatwise direction on the side closest to the free end from being restrained by not contacting the lead wire portion while the flatwise bent portions on the base end side with respect to the flatwise bent portion on the side closest to the free end, of the three flatwise bent portions, are shaped in the lead wire portion.

Coil end shaping apparatus

A coil installation method for installing a coil on a tooth of a stator core to manufacture a stator for a rotary electric machine, the coil installation method including forming the coil such that a rectangular wire is wound into a generally quadrangular shape so as to form three or more winding portions overlapping in a radial direction of the stator core and such that the winding portion positioned on an outer peripheral side in the radial direction has a larger width directed in a circumferential direction of the stator core.

Coil installation method and coil installation jig

A method for manufacturing a stator for a rotating electrical machine by placing coils in a stator core, wherein each of a plurality of teeth formed in a radial pattern in an inner periphery of an annular yoke portion in the stator core has tip-end parallel side surfaces formed in its tip end portion having a constant width in a circumferential direction, has intermediate tilted side surfaces continuous with the tip-end parallel side surfaces and formed in its portion whose width in the circumferential direction increases closer to an outer periphery, and has base-end parallel side surfaces continuous with the intermediate tilted side surfaces and formed in its base end portion having a constant width in the circumferential direction.

Method for manufacturing a stator for a rotating electrical machine

A method of manufacturing a rotor according to the present invention includes: a process of stacking a plurality of electromagnetic steel plates on a jigto fix the electromagnetic steel plates to the jig, and a process of inserting magnetsinto a plurality of respective openingsincluded in a rotor corein which the plurality of electromagnetic steel plates are stacked on one another. The magnetsare inserted into the respective openingswhile a structureincluding the rotor coreand the jigis vibrated at a resonance frequency of the structure

Method of manufacturing rotor

A stator configured with an annular stator core, and a plurality of coils mounted on the stator core. The bus bar portion being connected to the terminal portion of a different one of the coils of the same phase. The coil is a multi-layer coil that is formed by winding the conductor in a plurality of layers in an inside-outside direction of loops in the winding portion, and that includes on inner and outer peripheral sides of a coil end portion of the coil a plurality of lane change portions formed by the conductor. The bus bar portion is embedded in a clearance between the lane change portions of the coil of a different phase placed between the coils of the same phase which are connected to each other.

Stator with bus bar portion embedded between adjacent lane change portions and connected to terminal portion

A coil end shaping apparatus shapes a plurality of edgewise bent portions that are bent in the edgewise direction in a lead wire portion extending from one end of a coil, and includes first and second shaping dies capable of approaching each other to shape the edgewise bent portions provided on the base end side with respect to the edgewise bent portion ethat is the closest to the free end side among the plurality of edgewise bent portions, and a third shaping die capable of cooperating with the second shaping die to shape the edgewise bent portion that is the closest to the free end side.

Coil end shaping apparatus and method

A stator includes: a stator core having a plurality of slots and teeth parts; and coils each formed by winding a flat conductor and disposed in the slots. Of the corners of the rectangular cross-section of the flat conductor, a first corner located on the inner circumference side of the coil when the flat conductor is wound to form the coil is provided with a round chamfer having a radius larger than that of another corner. When the coil is inserted into the slots of stator core elements, the rectangular cross-section of the coil is disposed such that the first corner faces toward the outer circumference side of the stator.

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Toyota, Japan

Hirotaka Kawaura