MOTOR FOR AN ELECTRIC BICYCLE

摘要

PURPOSE: A motor for an electric bicycle is provided to rapidly cool down heat by circulating an inner air through a cooling fan. CONSTITUTION: A rotor(110) comprises at least one magnet piece. The rotor has a rotary shaft at center. A cylindrical stator(120) accommodates the rotor. The cylindrical stator is wound by the coil. The stator is installed in the inner circumference of a carrier. A reduction gear assembly(140) is comprised of a main gear, driven gear, and a ring gear. A housing(150) accommodate the carrier. The housing is combined with the ring gear. A pair of shafts(161,162) hold the carrier. A cooling fan(170) installs to the inner wall of the housing.