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Patent Searching and Data


Title:
MOTOR DRIVE DEVICE FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/156119
Kind Code:
A1
Abstract:
A motor drive device (10) for a vehicle has a cylindrical stator (24), a motor casing (25) which surrounds the outer periphery of the stator (24), a casing base section which supports one end of the stator (24), a motor casing cover which covers the other end of the stator (24), and an affixation means (51) which is disposed at a predetermined circumferential position about an axis M and which affixes the stator (24) to the casing base section. The motor casing (25) and the motor casing cover respectively have abutting surfaces (24d) which are made to abut against each other in the direction of the axis M. The abutting surface (25d) of the motor casing (25) is shaped to surround the outer peripheral surface of the stator (24) and includes: a proximity portion (25g) extending along the outer peripheral surface of the stator (24); and a bulged portion (25f) protruding to the outer diameter side so as to separate from the outer peripheral surface of the stator (24). The circumferential position where the affixation means (51) is disposed overlaps the circumferential position of the bulged portion (25f).

Inventors:
TAKEUCHI NAOYA (JP)
TAMURA SHIRO (JP)
TAIKOU SHINYA (JP)
Application Number:
JP2019/004245
Publication Date:
August 15, 2019
Filing Date:
February 06, 2019
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
H02K5/24; H02K5/22
Foreign References:
JP2000023405A2000-01-21
JP2017065301A2017-04-06
JP2017125581A2017-07-20
JP2016086555A2016-05-19
Attorney, Agent or Firm:
IMY INTERNATIONAL PATENT OFFICE, P.C. (JP)
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