Title:
MOTOR AND ELECTRIC POWER STEERING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/180038
Kind Code:
A1
Abstract:
This motor (1) is provided with a rotor and a stator (100). The stator (100) includes an annular core back (104), a plurality of teeth (105) extending radially inward from the core back (104), and a plurality of umbrellas (106) which face the rotor, are individually connected to the radially inner ends of the teeth (105), and each extend to both circumferential sides thereof. Gaps (108) having a specific width are provided between adjacent umbrellas (106), and the circumferential and radial positions of the gaps coincide when viewed from axially above. The umbrella (106) extending from each tooth has a shape which is asymmetric about a radial line (R) passing through the circumferential center of the umbrella (106) and which is point-symmetric about the intersection (P) between the axial center and the circumferential center of the umbrella (106).
Inventors:
YAMASHITA YOSHIAKI (JP)
KANEKO TAKUYA (JP)
ICHIEN AKIRA (JP)
KINJO HIDEYUKI (JP)
KANEKO TAKUYA (JP)
ICHIEN AKIRA (JP)
KINJO HIDEYUKI (JP)
Application Number:
PCT/JP2018/006223
Publication Date:
October 04, 2018
Filing Date:
February 21, 2018
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K1/14; H02K1/16; H02K1/22; H02K21/12
Foreign References:
| JP2010068595A | 2010-03-25 | |||
| JP2007209186A | 2007-08-16 | |||
| US20120256514A1 | 2012-10-11 | |||
| JP2009201207A | 2009-09-03 | |||
| JPH03243155A | 1991-10-30 | |||
| JPH0295150A | 1990-04-05 | |||
| JP2005168153A | 2005-06-23 |
Attorney, Agent or Firm:
HARADA, Izumi et al. (JP)
Download PDF:
Previous Patent: MOTOR AND ELECTRIC POWER STEERING DEVICE
Next Patent: VIDEO PROCESSING DEVICE, VIDEO ANALYSIS SYSTEM, METHOD, AND PROGRAM
Next Patent: VIDEO PROCESSING DEVICE, VIDEO ANALYSIS SYSTEM, METHOD, AND PROGRAM