Title:
BRUSHLESS MOTOR
Document Type and Number:
WIPO Patent Application WO/2008/035755
Kind Code:
A1
Abstract:
A resolver stator (33) is contained in a bottomed cylindrical resolver holder
(34). The resolver holder (34) is made of a magnetic material and includes a cylindrical
holder part (61) and a bottom wall part (63) which is formed at the end of the holder
part (61) and at the center of which a through hole (63a) is formed. The bottom
wall part (63) is disposed between the resolver stator (33) and a stator coil (6),
and the resolver stator (33) is disposed apart from the bottom wall part (63).
The bottom wall part (63) functions as a shield member against a field magnetic
flux.The magnetic flux on the stator (2) side is absorbed into the bottom wall
part (63) without leaking to the inside of the resolver holder (34), and whereby,
the influence of the field magnetic flux on the resolver stator (33) can be suppressed.
Inventors:
OKUBO MASAYUKI (JP)
Application Number:
PCT/JP2007/068338
Publication Date:
March 27, 2008
Filing Date:
September 21, 2007
Export Citation:
Assignee:
MITSUBA CORP (JP)
OKUBO MASAYUKI (JP)
OKUBO MASAYUKI (JP)
International Classes:
H02K29/12; H02K11/00
Foreign References:
| JP2004064801A | 2004-02-26 | |||
| JP2003174751A | 2003-06-20 |
Attorney, Agent or Firm:
TAKANO, Yasushi (Miyamasuzaka-Toho-Estate 6021-12-12, Shibuya, Shibuya-ku Tokyo 02, JP)
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