Motor connection structure of engine clutch for hybrid transmission

An engine clutch motor connection structure for a hybrid transmission, the motor connection configured for spline-coupling a rotor of a motor and an engine clutch retainer in the hybrid transmission, the motor connection structure comprising:

• a plurality of crown portions protruding from a coupled portion of the rotor in an axial direction of the rotor and spaced apart from each other in a circumferential direction;
• a plurality of radial protrusions protruding from a coupled portion of the retainer in a radial direction and inserted between the plurality of crown portions;
• a support ring coupled to an outer circumferential surface of the retainer in an axial direction of the rotor and supporting the outer circumferential surface of the retainer and the plurality of radial protrusions;
• and
• a damper provided on the support ring and supporting an inner circumferential surface of the rotor.