Honda Motor Co., Ltd.

Kazuhito Hiraga

Takeshi Yanagisawa

Kenichiro Murata

Akifumi Sudo

Yutaka Matsumoto

Yoshihisa Matsuoka

Kenichi Ohno

Hideaki Onda

Junya Tachikawa

Mitsuhiro Yamada

Junji Nakajima

Toru Yoshida

Provided are a rotor of a rotary electric machine, and a rotary electric machine, in which torque ripple can be efficiently reduced with a simple configuration. In the rotor of the rotary electric machine which is rotatably disposed in a stator, and the rotary electric machine including the stator, and the rotor rotatably disposed in the stator, two or more magnets are arranged per pole, and arranged such that separation distances, between the two or more magnets per pole along a circumferential direction of the rotor, alternately vary every pole along the circumferential direction of the rotor.

Rotor of rotary electric machine and rotary electric machine

Provided are a clamp jig for inhibiting an increase in the size of clamping equipment, and reducing the load during clamping by clamping after doing preliminary aligning of a segment end part; a stator manufacturing device; and a method for manufacturing a stator. The clamp jighas a pair of clamp bodies, extended in a stator core radial direction, for clamping from both sides in the stator core circumferential direction the end part of an electric conductor, which is inserted in the stator core and welded; and a convex partprovided extending in the stator core axis direction at the bottom of the clamp body, the convex part being inserted between unwelded electric conductors.

Clamp jig, stator manufacturing device, and method for manufacturing stator

A locator-equipped clamp jig capable of suppressing interference between base sections of segments when clamped by the clamp jig, a stator manufacturing device, and a method for manufacturing a stator. The locator-equipped clamp jig has a locator that is provided to part of a main clamp body on a stator core side and has a plurality of protrusions arranged on an upper surface of an electrical conductor that is adjacent, in the radial direction of the stator core, to an electrical conductor being clamped by the main clamp body, the width of the protrusions in the radial direction of the stator core being at least the width of one of the electrical conductors.

Locator-equipped clamp jig, stator manufacturing device, and method for manufacturing stator

A method for joining segments (electrical conductors) includes first and second joining steps. The first joining step includes welding a group of the segments including ends, such that the first group is welded to pairs of electrical conductors. The second joining step includes welding a second group of the segments including ends, which are composed of the segments whose ends are arranged in a column in the radial direction, such that the second group is welded to pairs of electrical conductors. The first group includes a segment as a first electrical conductor including the end which is located at the middle portion of a group of the segments including the ends in the radial direction. The second group includes a segment as a second electrical conductor including the end which crosses the first electrical conductor on the opposite sides with respect to the middle portion in the radial direction.

Method for joining electrical conductors

An insertion system for electrical conductors is provided that can widen the gap between insulating paper. An insertion system () includes: a first moving part () that causes a leg of the coil element () to move in an insertion direction of a slot (); a guide part () that guides the leg into the slot (); and a pair of first spreader plates (A) and a pair of second spreader plates (B) that can spread at a leading end side thereof, in which these pairs of spreader plates are formed so as to extend inclined relative to the insertion direction so as to approach each other towards a leading end side, and a gap therebetween is narrower than a width of insulating paper () at the leading end side, and is wider than a width of the leg of the coil element () at a base end side.

Insertion system for electrical conductor

The present invention provides a coil end structure of a rotating electric machine which is able to miniaturize the coil end structure without having an insulation coating of a flat wire being affected. A coil segmentis composed of a plurality of flat wires. A surface of each flat wire confronting another in a slot(legsand) is identical to the surface confronting the other at a coil end (head).

Growing community of inventors

Tochigi, Japan

Kazuhito Hiraga