Title:
ROTOR, ELECTRIC MOTOR, BLOWER, AND AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/215149
Kind Code:
A1
Abstract:
This rotor (1) has a first permanent magnet (20) that has a rotating shaft (10), a magnet main body (21) supported by the rotating shaft (10), and a plurality of grooves (22) provided so as to be arranged at equal intervals in a circumferential direction about the rotating shaft (10) on a first outer circumferential surface (21c) that is a radially outward surface of the magnet main body (21), and a plurality of second permanent magnets (31) that have a stronger magnetic pole than that of the first permanent magnet (20) and are respectively disposed in the plurality of grooves (22). A first distance (OD1) that is the maximum distance between the first outer circumferential surface (21c) and the rotating shaft (10) is greater than a second distance (OD2) that is the maximum distance between the rotating shaft (10) and a second outer circumferential surface (31c) that is a radially outward surface of each second permanent magnet (31) of the plurality of second permanent magnets (31).
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Inventors:
WATANABE TAKANORI (JP)
TSUCHIDA KAZUCHIKA (JP)
SHIMOKAWA TAKAYA (JP)
TAKAHASHI RYOGO (JP)
TSUCHIDA KAZUCHIKA (JP)
SHIMOKAWA TAKAYA (JP)
TAKAHASHI RYOGO (JP)
Application Number:
PCT/JP2021/014578
Publication Date:
October 13, 2022
Filing Date:
April 06, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K1/27
Domestic Patent References:
| WO2020261420A1 | 2020-12-30 |
Foreign References:
| JP2011055584A | 2011-03-17 | |||
| JP2000166141A | 2000-06-16 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
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