Title:
ロータ及びブラシレスモータ
Document Type and Number:
Japanese Patent JP6503950
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a rotor capable of controlling a magnetic flux on a rotor surface.SOLUTION: A first magnetic layer 41 is composed of eight first magnet portions 42 which are aligned in a circumferential direction around a rotor core 31 fixed to a rotary shaft 32, and is rotated integrally with the rotor core 31. A second magnet layer 51 is composed of the same number as the first magnet portions 42 of second magnet portions 52 aligned in the circumferential direction on the inner side in a diametrical direction than the first magnet layer 41, and is rotated integrally with the rotor core 31. End portions in the circumferential direction of the second magnet portion 52, which faces each other in the circumferential direction are superimposed on any one first magnet portion 42 of the eight first magnet portions 42 in a diametrical direction. The first magnet portion 42 is magnetized in the diametrical direction so as to make magnetizing directions of the first magnet portions 42 adjacent to each other in the circumferential direction oppose to each other. The second magnet portion 52 is magnetized in the circumferential direction so as to make the end portions in the circumferential direction of the second magnet portion 52 have the same polarity as a magnetic pole formed at an end portion on the outer side in the diametrical direction of the first magnet portion 42 positioned on the outer side in the diametrical direction.SELECTED DRAWING: Figure 1
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Inventors:
Akihisa Hattori
Yoji Yamada
Yoji Yamada
Application Number:
JP2015139971A
Publication Date:
April 24, 2019
Filing Date:
July 13, 2015
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02K1/27
Domestic Patent References:
| JP2007312449A | ||||
| JP2009219312A |
Foreign References:
| CN102097876A | ||||
| WO2011013483A1 |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda