Patent ID: 8446064

Claim:
A rotor ( 24 ) for a rotary electric machine ( 20 ), adapted to be used for an automotive vehicle, the rotor rotatably mounted about an axially orientated axis of rotation (B), the rotor comprising: a front polar wheel ( 46 N) and a rear polar wheel ( 46 S) both mounted centrally about the axis of rotation (B); each of the front and rear polar wheels ( 46 N, 46 S) having a base ( 54 ) arranged at the periphery thereof and claws ( 52 ) extending axially in the direction of the other polar wheel ( 46 N, 46 S) from the base ( 54 ) to a free end ( 56 ) of the claw ( 52 ), each of the claws ( 52 ) of one polar wheel ( 46 N, 46 S) being circumferentially interleaved between two axially adjacent peripheral claws ( 52 ) of the other polar wheel ( 46 N, 46 S), each of the claws ( 52 ) being delimited circumferentially by two lateral faces ( 60 ); at least two interpolar gaps ( 62 ) provided between the facing lateral faces ( 60 ) of the two consecutive claws ( 52 ) of each of the polar wheels ( 46 N, 46 S); at least two elements ( 68 ) forming a magnetic barrier and arranged in the at least two interpolar gaps ( 62 ) either side of the claw ( 52 D) of the rear polar wheel ( 46 S); longitudinal front ends ( 72 ) of the elements ( 68 ) being connected together so as to form an open chain ( 80 ), via a connector ( 82 ); the connector ( 82 ) having two ends ( 84 ) connecting the longitudinal front ends ( 72 ) of the elements ( 68 ) so as to axially straddle the free end ( 56 ) of the claw ( 52 D) of the rear polar wheel ( 46 S).