Title:
回転電機
Document Type and Number:
Japanese Patent JP5850262
Kind Code:
B2
Abstract:
A rotating electric machine has a semiconductor magnetic sensor and a cylindrical housing with a cylinder part, which is made of a soft magnetic material, positioned closer to the semiconductor magnetic sensor relative to a back yoke of a stator core. The semiconductor magnetic sensor is positioned away from the cylindrical housing so that a shortest distance between a center of the semiconductor magnetic sensor and the cylindrical housing is equal to or greater than 50 times of a sum of a first space distance and a second space distance. With such an arrangement, a leak magnetic field generated by magnetic poles that leaks in an axial direction is prevented from disturbing the semiconductor magnetic sensor. Thus, a rotation position detection accuracy of the semiconductor magnetic sensor is improved.
Inventors:
Makoto Taniguchi
Application Number:
JP2013041823A
Publication Date:
February 03, 2016
Filing Date:
March 04, 2013
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H02K29/08; H02K1/27; H02K21/14
Domestic Patent References:
| JP2012244706A | ||||
| JP6013379U | ||||
| JP2010263763A | ||||
| JP11289743A |
Attorney, Agent or Firm:
Masaki Hattori