Provided are a motor unit with improved heat dissipation capability for electric bicycles and an electric bicycle including such a motor unit. A motor unit (3) for use in electric bicycles includes a motor (5) and a unit case (4) to which the motor (5) is fitted. The motor (5) includes: a stator (53); a rotor (52) arranged to be surrounded with the stator (53); a rotary shaft (51) fixed to the rotor (52); and a metallic cup (57) to house the stator (53) and the rotor (52) at least partially. An inner peripheral surface (570) of the metallic cup (57) is in pressure contact with the stator (53).
ELECTRIC BICYCLE MOTOR UNIT AND ELECTRIC BICYCLE
ELEKTRISCHE FAHRRADMOTOREINHEIT UND ELEKTRISCHES FAHRRAD
UNITÉ DE MOTEUR DE BICYCLETTE ÉLECTRIQUE ET BICYCLETTE ÉLECTRIQUE
2021-07-21
Patent
Electronic Resource
English