| 摘要 |
Disclosed is a hub motor structure. According to an aspect of the present invention, the hub motor structure installed in a bicycle includes: a hollow shaft installed in a frame of a bicycle; a housing installed in the hollow shaft to rotate and connected to a wheel through a spoke on the outer circumference; a cover installed in the hollow shaft to rotate by being installed in the housing and having a driven sprocket connected to a chain to receive a pedal force; a motor installed in the housing and generating a rotation force to drive the wheel; a stepless speed changer installed in the housing and selectively changing the speed of power supplied from the motor; a power transfer unit transferring the rotation force of the motor to the stepless speed changer; and a gear unit transferring the rotation force outputted by the stepless speed changer to the housing. According to an embodiment of the present invention, the hub motor structure can simplify wiring as the motor and a battery is integrally installed in the housing and can improve a mounting property by reducing the volume thereof. |
