Title:
ATTACHMENT METHOD AND ATTACHMENT STRUCTURE FOR BRUSHLESS MOTOR SENSOR SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2014/002767
Kind Code:
A1
Abstract:
Provided are an attachment method and an attachment structure for a brushless motor sensor substrate, with which a rotation detection element can be arranged near the permanent magnets of a rotor and securely attached by means of a simple method, thereby eliminating the need to increase the size of the permanent magnets of the rotor in the axial direction. In the present invention an insulation material, which provides insulation between the location where the stator coils are wound and the outside, is formed on a stator core (20) on the inner circumferential surface of which radial pole tooth parts (20b) are provided at fixed intervals, and the stator coils are wound on the pole tooth parts, with the insulation material therebetween. In addition, stopper walls (83) which prevent these stator coils from coming out are provided at the tip part of the pole tooth portion of the insulation material, and seating parts (84) are formed on the inner circumferential surface of the stopper walls (83). A sensor substrate (9), on which is mounted a position detection element for detecting the position of permanent magnets (30) provided on the rotor (3), is arranged on these seating parts (84), and locking parts which hold the sensor substrate (9) are provided on some of the seating parts (84), thereby preventing the sensor substrate (9) from disengaging in the axial direction.
Inventors:
KUWATA SHINYA (JP)
OSATO HARUAKI (JP)
OSATO HARUAKI (JP)
Application Number:
PCT/JP2013/066233
Publication Date:
January 03, 2014
Filing Date:
June 12, 2013
Export Citation:
Assignee:
ORIENTAL MOTOR CO LTD (JP)
International Classes:
H02K3/38; H02K11/00; H02K21/16
Foreign References:
| JP2008054390A | 2008-03-06 | |||
| JPS6339448A | 1988-02-19 | |||
| JPS6437376U | 1989-03-07 | |||
| JPH09308208A | 1997-11-28 | |||
| JP2000041371A | 2000-02-08 | |||
| JPH07298575A | 1995-11-10 |
Other References:
See also references of EP 2869438A4
Attorney, Agent or Firm:
OKUYAMA, Shoichi et al. (JP)
Okuyama In addition, it is 1. (JP)
Okuyama In addition, it is 1. (JP)
Download PDF: