ROTOR AND MOTOR - MITSUBISHI ELECTRIC CORP

Title:

ROTOR AND MOTOR

Document Type and Number:

WIPO Patent Application WO/2020/188810

Kind Code:

A1

Abstract:

This rotor (120) has a rotor iron core (121) configured from a plurality of iron core pieces (211) divided by slit parts (122) that form flux barriers, non-magnetic structures (123) that are disposed in the slit parts (122) and that connect the iron core pieces (211), and a shaft (124) that is fitted into the rotor iron core (121). The rotor iron core (121) comprises protruding shape parts (125) that protrude into the slit parts (122). The protruding shape parts (125) comprise axial parts that protrude from the circumferential walls of the slit parts (122), and engaging parts that project from the distal end of the axial parts. Acute angles are formed by the center lines of the axial parts and the side surfaces of the engaging parts on the circumferential-wall side at which the axial parts protrude.

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Inventors:

KAMEI RYOTA (JP)
HARA TORU (JP)
OGUMA YOSHIAKI (JP)
MORIYA HIROAKI (JP)

Application Number:

PCT/JP2019/011830

Publication Date:

September 24, 2020

Filing Date:

March 20, 2019

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)

International Classes:

H02K1/22; H02K19/10

Domestic Patent References:

WO2006098066A1

2006-09-21

Foreign References:

JPH09285087A	1997-10-31
JPH09247904A	1997-09-19
JPH0594423U	1993-12-24
JP2002095227A	2002-03-29

Attorney, Agent or Firm:

TAKAMURA, Jun (JP)

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