Title:
ENCAPSULATED MOTOR
Document Type and Number:
WIPO Patent Application WO2003055039
Kind Code:
A3
Abstract:
The invention relates to an encapsulated motor that comprises a rotor with a rotor shaft, a casing with a cylindrical wall, closed at the front end, and a stator, the cylindrical wall of the casing being inserted between the rotor and the stator. In order to detect the rotational position and optionally the speed of the rotor, a resolver is integrated into the encapsulated motor, which comprises a resolver rotor that co-rotates wit the rotor and a static resolver stator. The cylindrical wall of the casing also extends between the resolver rotor and the resolver stator. The resolver allows a precise detection especially of the rotational position of the rotor but also of its speed, thereby allowing a motor control such as is known from the field of electronically commutated d.c. motors.
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Inventors:
RITZINGER CHRISTIAN (DE)
ENGESSER MARTIN (DE)
SEMMA KURT (DE)
ENGESSER MARTIN (DE)
SEMMA KURT (DE)
Application Number:
PCT/EP2002/014503
Publication Date:
December 18, 2003
Filing Date:
December 18, 2002
Export Citation:
Assignee:
MINEBEA CO LTD (JP)
RITZINGER CHRISTIAN (DE)
ENGESSER MARTIN (DE)
SEMMA KURT (DE)
RITZINGER CHRISTIAN (DE)
ENGESSER MARTIN (DE)
SEMMA KURT (DE)
International Classes:
H02K5/128; H02K11/00; H02K24/00; H02K29/12; H02K29/14; (IPC1-7): H02K5/128; H02K24/00; H02K29/08
Domestic Patent References:
| WO2001050576A1 | 2001-07-12 |
Foreign References:
| DE9320524U1 | 1994-08-25 | |||
| US5446966A | 1995-09-05 | |||
| EP0281818A1 | 1988-09-14 | |||
| GB2289801A | 1995-11-29 | |||
| GB1102923A | 1968-02-14 |
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