ROTATING ELECTRIC MACHINE - HITACHI AUTOMOTIVE SYSTEMS LTD

Title:

ROTATING ELECTRIC MACHINE

Document Type and Number:

WIPO Patent Application WO/2020/071037

Kind Code:

A1

Abstract:

The present invention addresses the problem of improving the reliability of a rotating electric machine. The stator of the rotating electric machine is provided with: a stator core provided with teeth and slots on the cylindrical inside surface thereof; a plurality of windings disposed inside the slots; and slot liners disposed between the inner walls of the slots and the plurality of windings. The plurality of windings each have a first surface formed along the radial direction of the stator core and a second surface formed along the circumferential direction thereof. The slots each have a first inner wall facing the first surface and a second inner wall facing the second surface. The surfaces of the slot liners are each formed with an adhesive layer that expands by a process. When the area of the first surface is larger than the area of the second surface, the distance between the first inner wall and the first surface is made smaller than the distance between the second inner wall and the second surface. When the area of the first surface is smaller than the area of the second surface, the distance between the first inner wall and the first surface is made larger than the distance between the second inner wall and the second surface.

Inventors:

OKAMOTO HIROMITSU (JP)
NAKAYAMA KENICHI (JP)
NAKAYAMA KENJI (JP)
TAKANO TOSHIYUKI (JP)
OZEKI YOSHIO (JP)
KOBAYASHI HIDEAKI (JP)

Application Number:

PCT/JP2019/034694

Publication Date:

April 09, 2020

Filing Date:

September 04, 2019

Export Citation:

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Assignee:

HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

International Classes:

H02K3/34; H02K3/48

Foreign References:

JP2012239322A	2012-12-06
JP2012244719A	2012-12-10
JP2010035344A	2010-02-12
JPS55134744U	1980-09-25
JP2018078764A	2018-05-17

Other References: