ROTARY ELECTRIC MACHINE - MITSUBISHI ELECTRIC CORP

Title:

ROTARY ELECTRIC MACHINE

Document Type and Number:

WIPO Patent Application WO/2017/073092

Kind Code:

A1

Abstract:

The present invention attains a rotary electric machine capable of suppressing increase in locally generated heat when the number of turns or wire diameter of a conductive wire of a part of coil parts is changed. In an armature winding of this rotary electric machine, when: the largest one of electrical angle phase differences between two coil parts, among a serially-connected coil part group, is θm; the electrical angle phase difference in one of the coil parts between which the electrical angle phase difference is the largest is θ1=0°; and the electrical angle phase differences in the other coil parts with respect to the coil part having θ1 are θ2, ···, θm, in ascending order, the number of turns of the conductive wire of a coil part having an electrical angle phase difference θk, which satisfies θ1<θk<θm (k=2, 3, ···, m-1), differs from the number of turns of the conductive wire of the coil part having θ1 or θm, and further differs from the number of turns of the conductive wire of each of the coil parts adjacent to both sides, in the circumferential direction, of the coil part having θk. In addition, the phase of the coil part having θk differs from the phase of each of the coil parts adjacent to both sides, in the circumferential direction, of the coil part having θk.

Inventors:

OKAZAKI KODAI (JP)
NAKANO MASATSUGU (JP)
ITO KAZUMASA (JP)
HIROTANI YU (JP)
IKEDA HIROKO (JP)
KAWAMURA KOJI (JP)

Application Number:

PCT/JP2016/055896

Publication Date:

May 04, 2017

Filing Date:

February 26, 2016

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

H02K3/28; H02K3/18; H02K21/16

Domestic Patent References:

WO2013080374A1

2013-06-06

Foreign References:

JP2014068497A	2014-04-17
JP2011223676A	2011-11-04

Other References: