Title:
MOTOR FRAME AND MOTOR DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/234127
Kind Code:
A1
Abstract:
The present invention facilitates, for a motor frame, attachment to an external member and suppresses the adverse effect of circumferential non-uniformity. A motor frame (3) comprises: a cylindrical body (30) that penetrates in a direction of extension of the axial center of a rotating shaft of a motor fitted inside the motor frame. The cylindrical body (30) has: four outer wall surfaces (4); an inner wall surface (5); and four connecting sections (6). The inner wall surface (5) has a cylindrical inner surface shape that surrounds the rotating shaft and conforms to the rotating shaft. The four connecting sections (6) are respectively located at four boundaries formed by adjacent outer wall surfaces (4) among the four outer wall surfaces (4). Each of the four connecting sections (6) has a stress relief groove (7) that is recessed toward the axial center at the boundary between both adjacent outer wall surfaces (4). At least one connecting section (6) has: a stress relief groove (7) in a section along a direction of extension of the axial center; and a body section (8) that does not have a stress relief groove (7) in another section along the direction of extension of the axial center.
Inventors:
SHIMOKAWA TOMOYA
ASO NORITAKA
MORIOKA MASAYUKI
ASO NORITAKA
MORIOKA MASAYUKI
Application Number:
PCT/JP2023/019211
Publication Date:
December 07, 2023
Filing Date:
May 23, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02K5/04
Foreign References:
| JP2008228515A | 2008-09-25 | |||
| JP2018082552A | 2018-05-24 | |||
| JP2014107988A | 2014-06-09 | |||
| JP2017184317A | 2017-10-05 | |||
| JP2005080416A | 2005-03-24 | |||
| JP2005304150A | 2005-10-27 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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