| 摘要 |
PURPOSE: A one-axis two-motor power transmission device for an electric bicycle is provided to vary the output for high-speed driving and low-speed driving by controlling the current in the magnetic field in two stages through a serial or parallel circuit. CONSTITUTION: Two electric motors(1,2) having the same size and performance are installed in a rotary shaft of an electric three-wheeled bicycle. A multi-contact switch is installed so that current can flow in the magnetic field of the electric motors through a serial or parallel circuit, thereby generating two-stage driving forces for high- and low-speed driving. A reduction device connects the electric motors to the rear wheel and reduces the rotating speed by coupling the spiral gear of the motor axis with a circular gear sliding on the spiral gear at the right angle. |
