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Title:
IN-WHEEL MOTOR DRIVE DEVICE, ROTARY ELECTRIC MOTOR, AND PRODUCTION METHOD FOR HOUSING
Document Type and Number:
WIPO Patent Application WO/2019/156075
Kind Code:
A1
Abstract:
An in-wheel motor drive device (IWM) that comprises a rotary electric motor (1), a wheel bearing (5), and a decelerator (2). The rotary electric motor (1) has: an annular stator (9); a housing (8) into which the stator (9) is fitted and fixed; a rotary shaft (6) that is rotatably supported in the housing (8) by bearings (11, 12) so as to be coaxial with the stator (9); and a rotor (10) that rotates integrally with the rotary shaft (6). A no-contact section (A) is provided between an outer circumferential surface of the stator (9) and an inner circumferential surface of the housing (8). A vehicle body attachment piece (51) protrudes from an outer circumferential surface of the housing (8). All or part of a base end of the vehicle attachment piece (51) overlaps a radial-direction projection area for the no-contact section (A).

Inventors:
KURODA MASARU (JP)
Application Number:
JP2019/004072
Publication Date:
August 15, 2019
Filing Date:
February 05, 2019
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
H02K5/24; B60K7/00; H02K5/20; H02K7/116
Domestic Patent References:
WO2014125864A12014-08-21
Foreign References:
JP2014061880A2014-04-10
JP2015112001A2015-06-18
JP2007228725A2007-09-06
JP2010124661A2010-06-03
JP2008044439A2008-02-28
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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