Polyphase induction motor having a ferromagnetic rotor plate

Details Polyphase induction motor having a ferromagnetic rotor plate Polyphase induction motor having a ferromagnetic rotor plate

H - Electricity

02

K

H02K 17/12 (2006.01) H02K 17/16 (2006.01) H02K 17/42 (2006.01)

Patent

CA 2203239

A polyphase induction motor (10) is disclosed having two electromagnet arrangements (12, 14), each of the electromagnet arrangements (12, 14) having pole pieces (24, 26) with corresponding polar faces (27). The two electromagnet arrangements (12, 14) are arranged such that the polar faces (27) of the two electromagnet arrangements (12, 14) are in a mirrored facing relationship each other. A gap (66) is therefore defined between the facing polar faces (27) of the electromagnet arrangements (12, 14). A substantially planar ferromagnetic conductor plate (16) is disposed within the gap (66), and rotates about the central axis (68) of the motor (10).

L'invention porte sur un moteur polyphasé d'induction (10) constitué de deux ensembles d'électro-aimants (12, 14), chacun des ensembles d'électro-aimants (12, 14) étant pourvu de pôles inducteurs (24, 26) avec leurs faces polaires (27) correspondantes. Les deux ensembles d'électro-aimants (12, 14) sont disposés de manière à ce que les faces polaires (27) des électro-aimants (12, 14) soient les unes en face des autres dans un rapport symétrique. Un espace (66) est ainsi défini entre les faces polaires opposées (27) des ensembles d'électro-aimants (12, 14). Une plaque conductrice ferromagnétique (16) pratiquement plane est montée dans cet espace (66) et effectue une rotation autour de l'axe central (68) du moteur (10).

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