Title:
FLUX RING FOR AN ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO2002003528
Kind Code:
A3
Abstract:
A flux ring for a motor of a power tool has an annular housing which fits inside the motor can of the motor. At least one magnet is on the ring. The at least one magnet includes a portion formed from an isotropic magnetic material and a portion formed from an anisotropic magnetic material. Preferably, the isotropic magnetic materials is sandwiched by the anisotropic magnetic material. The magnets being molded onto the flux ring in a two shot process.
Inventors:
DU HUNG T (US)
Application Number:
PCT/US2001/021343
Publication Date:
August 22, 2002
Filing Date:
July 05, 2001
Export Citation:
Assignee:
BLACK & DECKER INC (US)
DU HUNG T (US)
DU HUNG T (US)
International Classes:
H02K1/02; H02K1/12; H02K1/17; H02K15/03; H02K23/04; (IPC1-7): H02K23/04; H02K1/17; H02K15/03
Domestic Patent References:
| WO1993022778A1 | 1993-11-11 |
Foreign References:
| US4110718A | 1978-08-29 | |||
| EP1093133A2 | 2001-04-18 | |||
| US4417167A | 1983-11-22 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 10, no. 228 (E - 426) 8 August 1986 (1986-08-08)
Download PDF:
Previous Patent: STATORS AND ROTORS FOR ROTARY ELECTRICAL MACHINE
Next Patent: ADJUSTMENT DRIVE WITH AN ADJUSTABLE POTENTIOMETER
Next Patent: ADJUSTMENT DRIVE WITH AN ADJUSTABLE POTENTIOMETER