Title:
回転電機
Document Type and Number:
Japanese Patent JP7052651
Kind Code:
B2
Abstract:
To provide a rotary electric machine capable of increasing a torque of the rotary electric machine, without using a special orientation technology as possible.SOLUTION: A rotary electric machine comprises a rotator 40 having a first magnet 151 and a second magnet 152. The first magnet 151 is oriented so that an easy axis of magnetization in a d-axis side becomes a direction parallel to the d-axis or near to a direction in parallel to the d-axis, and a direction that the easy axis of magnetization in the q-axis is orthogonal to the q-axis or a direction near to the direction that the easy axis of magnetization is orthogonal to the q-axis. The second magnet 152 is oriented so that magnetic path formed in convexity on a reflective stator 50 side is formed. When the number of phase of a stator winding 51 is S, and a main magnet pole angle formed by a straight line passing through one end of both ends of the q-axis in the circumferential direction in the first magnet 151 and an axial core CP of the rotator 40 and a straight line passing through the other end of both ends of the q-axis and the axial core CP is θa, the following equation satisfies: 0<θa≤2π/S, and 2π/5<θa<2π/3.SELECTED DRAWING: Figure 45
Inventors:
Hiroki Takahashi
Application Number:
JP2018166443A
Publication Date:
April 12, 2022
Filing Date:
September 05, 2018
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02K21/22; H02K1/2792
Domestic Patent References:
| JP2015211492A | ||||
| JP2004015906A | ||||
| JP2017139945A | ||||
| JP2005117751A |
Attorney, Agent or Firm:
Yamada Tsuyoshi
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita