MOTOR WITH POWER TRANSMISSION OF ONE BODY TYPE

摘要

The present invention relates to first and second stators for generating a magnetic force if an electric current is applied to a coil; first and second rotors each having a plurality of permanent magnets, a core and a shaft in such a manner as to be mounted rotatably with respect to the first and second stators; a power transmission shaft rotated integrally with the first and second rotors; a pedal side gear rotatably mounted integrally along the outer periphery of the power transmission shaft in such a manner as to be engaged with a gear attached to a pedal; and a rear wheel side gear rotatably mounted integrally along the outer periphery of the power transmission shaft in such a manner as to be engaged with a gear attached to a rotary shaft of a rear wheel. The motor with an integral body type of power transmission shaft is easily mounted to an electric bicycle, thereby providing excellent assembling and productivity, and reduces the losses of power by the simplicity of parts therein, thereby making the efficiency of transmission of power desirably optimized.