Brushless electric motor

H - Electricity – 02 – K

Patent

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Details

H02K 29/00 (2006.01) H02K 1/27 (2006.01) H02K 5/02 (2006.01) H02K 5/04 (2006.01) H02K 5/15 (2006.01) H02K 15/02 (2006.01) H02K 16/02 (2006.01)

Patent

CA 2581528

A brushless electric motor includes a housing with a pair of disc--shaped end plates fixed relative to the housing in a spaced, generally parallel relationship to each other. A pair of bearings are respectively positioned in the end discs. A motor shaft is rotatably journalled in the bearings for rotation about its axis. A stator assembly is supported by the housing intermediate the end plates and through which the motor shaft passes. The stator assembly includes a plurality of individual wire-wound coils in a toroidal array around the axis of the shaft. The stator assembly has recesses in opposite faces. thereof. A pair of disc-shaped rotor assemblies are respectively, disposed within the recesses in the opposite faces of the stator assembly inside the end plates.

Le moteur électrique sans balais comprend une enveloppe avec une paire de plaques d'extrémité en forme de disques fixes par rapport à l'enveloppe d'une manière espacée et parallèle. Une paire de paliers est positionnée dans les plaques d'extrémités. Un arbre moteur se trouve de manière rotative dans les paliers afin de pouvoir tourner autour de son axe. Un stator est soutenu par l'enveloppe entre les plaques d'extrémités et à travers lequel passe l'arbre moteur. Le stator comprend une pluralité de bobines individuelles dans un réseau torique autour de l'axe de l'arbre. Le stator est muni de fraisures dans ses faces opposées. Une paire d'assemblages rotor en forme de disques sont respectivement disposés dans les fraisures des faces opposées du stator à l'intérieur des plaques d'extrémités.

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