Plastic brushless direct current disk-shaped electric motor

H - Electricity – 02 – K

Patent

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Details

H02K 1/06 (2006.01) H02K 1/12 (2006.01) H02K 1/18 (2006.01) H02K 1/27 (2006.01) H02K 3/47 (2006.01) H02K 29/00 (2006.01) H02K 29/08 (2006.01) H02K 21/24 (2006.01)

Patent

CA 2242198

A disk shaped brushless direct current electric motor has a plastic stator disk (201) and a plastic rotor disk. The plastic stator disk (201) has an annular cavity on one face retaining a spiral coil (305) of thin lamination steel and a plurality of radial fingers on the opposite face to support conductive windings (206). The plastic rotor disk contains and supports a backing plate of mild steel (101) attached to a central shaft (303). An annular ring magnet (102) is attached to the steel backing plate. The annular ring magnet has from 4 to 24 permanent magnetic poles; preferably eight poles.

Electromoteur en forme de disque à courant continu sans balai possédant un disque de stator (201) plastique et un disque de rotor plastique. Le disque de stator (201) possède une cavité annulaire sur une face retenant une bobine en spirale (305) en acier laminé mince et une pluralité de doigts radiaux sur la face opposée afin de supporter des enroulements conducteurs (206). Le disque de rotor contient et supporte une plaque de renforcement en acier doux (101) fixée à un arbre central (303). Un aimant annulaire (102) est fixé à la plaque de renforcement en acier. Cet aimant possède de 4 à 24 pôles magnétiques permanents et, de préférence, huit pôles.

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