Patent ID: 9353758
Filing Date: 2016-05-31
CPC Classification: F04D,H02K

Claim Text:
1. A fan module ( 1 ; 2 ) having an electric motor ( 12 ) and a fan rotor ( 20 ; 50 ), wherein the electric motor ( 12 ) and the fan rotor ( 20 ; 50 ) are arranged on a rotor shaft ( 11 ) and are connected to one another by a drive connection ( 22 , 30 ; 24 ; 40 ), and wherein the electric motor ( 12 ) is configured to drive the fan rotor ( 20 ; 50 ) via the drive connection ( 22 , 30 ; 24 ; 40 ), characterized in that the drive connection ( 22 , 30 ; 24 ; 40 ) has a positively locking connection ( 22 , 30 ; 24 ; 40 ) to a driver ( 30 ; 40 ) and a driver counterpart ( 22 , 24 ), wherein the driver ( 30 ; 40 ) is arranged on the electric motor ( 12 ) and projects in a direction parallel to a rotational axis ( 10 ) into a trough-shaped region containing at least two reinforcing ribs ( 22 ) and the driver counterpart ( 22 , 24 ) includes at least one of the two reinforcing ribs ( 22 ) and is arranged on the fan rotor ( 20 ; 50 ), spaced radially apart from the rotor shaft ( 11 ), wherein the driver ( 30 ; 40 ) of the electric motor ( 12 ) is configured to project between the two reinforcing ribs ( 22 ) and is further configured to activate the driver counterpart ( 22 , 24 ) in order to transmit force from the electric motor ( 12 ) to the fan rotor ( 20 ; 50 ).