Title:
CPAP DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/230239
Kind Code:
A1
Abstract:
One aspect of the present disclosure provides a CPAP device that reduces a positional deviation in an axial direction of an output shaft of a motor. A motor (80) of a CPAP device according to one aspect of the present disclosure includes: a stator assembly (85) including a coil (87) and having an annular shape as a whole; a rotor assembly (88) disposed radially inside the stator assembly (85); and an output shaft (81) that rotates with the rotor assembly (88). The output shaft (81) extends in a height direction (Td), and is inserted into an insertion hole (84A) of a base (82). A permanent magnet (90) of the rotor assembly (88) faces the stator assembly (85) in a radial direction. The permanent magnet (90) faces a coil (87) of the stator assembly (85) on a winding central axis (C) of the coil (87) of the stator assembly (85). A gap (G) between the permanent magnet (90) and the stator assembly (85) is wider in a portion on an upper side in the height direction (Td) relative to the winding central axis (C) than in a portion on a lower side in the height direction (Td) relative to the winding central axis (C) .
More Like This:
| WO/2018/150200 | ELECTRIC MOTOR |
| JP2008131665 | MOTOR |
| JPS61189165 | STEPPING MOTOR |
Inventors:
HIGASHIYAMA YUZO (JP)
NAITO OSAMU (JP)
NAITO OSAMU (JP)
Application Number:
PCT/JP2021/017896
Publication Date:
November 18, 2021
Filing Date:
May 11, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02K21/14; A61M16/00; H02K5/167; H02K7/14
Foreign References:
| JP2014512479A | 2014-05-22 | |||
| JP2001069738A | 2001-03-16 | |||
| JP2015092810A | 2015-05-14 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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