OUTER-ROTOR IN-WHEEL TYPE MOTOR, ELECTRIC AUTOMOBILE, AND HYBRID VEHICLE

摘要

PPROBLEM TO BE SOLVED: To provide an outer-rotor in-wheel type motor wherein outside air is effectively utilized and a coil that is generating heat is effectively cooled when a vehicle is running and power is not consumed when the coil is cooled and an electric automobile and a hybrid vehicle equipped with the outer-rotor in-wheel type motor. PSOLUTION: The outer-rotor in-wheel type motor 1 is so constructed that: a stator core 2 having salient pole cores 4 with coils 41 attached to them is installed around a hollow axle 3 and a rotor that rotates around the stator 2 is constructed of a wheel 6 and salient poles 61 attached to its inner circumferential surface. The stator core 2 is provided in it with an inflow passage 71 and an exhaust passage 72. The outside air that entered the inflow passage 71 from the hollow axle 3 is supplied to the coils 41, and the outside air that is heated by drawing heat from the coils 41 is exhausted to outside the vehicle through the exhaust passage 72. PCOPYRIGHT: (C)2006,JPO&NCIPI