High speed electric motor

Details High speed electric motor High speed electric motor

H - Electricity

02

K

H02K 11/00 (2006.01) H02K 3/12 (2006.01) H02K 21/14 (2006.01)

Patent

CA 2463100

The invention relates to an electric motor, in particular for high speed operation, comprising a motor housing (4); inside the housing (4), a stator (2) having a core (8) and windings (9) toroidally wound on the core (8); and a rotor (1) inside the stator (2). The motor comprises an inductance controlling ring (3) in soft-magnetic material around the stator core (8), increasing for each phase the leakage inductance and forming for each phase an integrated filter inducatnce (L1, L2, L3) outside the core (8) of the stator (2) but still inside the motor housing (4).

L'invention concerne un moteur électrique, en particulier pour une exploitation à grande vitesse, qui comprend un carter moteur (4); et à l'intérieur de ce carter (4), un stator (2) comportant un noyau (8) et des bobinages (9) à enroulement toroïdal sur le noyau (8); et enfin un rotor (1) à l'intérieur du stator (2). Le moteur comprend en outre un anneau de commande d'inductance (3) en matériau magnétique mou, autour du noyau du stator (8), ce qui permet d'accroître pour chaque phase l'inductance de fuite et d'établir pour chacune des phases une inductance de filtrage de type intégré (L1, L2, L3), à l'extérieur du noyau (8) du stator (2) mais toujours à l'intérieur du carter moteur (4).

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