| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric motor wheel, in which transmission of a shock or vibration from a wheel to a motor is suppressed and contact between a rotor and a stator can be prevented without causing any increase in a motor loss due to increase of a gap between the rotor and the stator in the motor, for an electric motor car. SOLUTION: An outer rotor type motor in which rotor 7 is arranged on the outer circumference side of a stator is used, while a direct drive type electric motor wheel structure in which the rotor 7 is directly connected to wheel parts such as spokes 201, 202 is used. The rotor 7 is fixed in the outer circumference part of a rotor base 5, the inner circumference part of the rotor base 5 is fixed in the cylindrical first hub 4, and the spokes 201, 202 are fixed in the first hub 4 and the second hub 6 at the predetermined distance from the rotor base 5 in the axial direction without touching the rotor base 5. That is, the first hub 4, which is supported freely rotationally in a wheel shaft 1 via bearings 2, 3 and is formed into a cylinder provided with a small diameter, supports the diameter directional inside end part of the spoke 202 and the diameter directional inside end part of the rotor base 5 at the same time. Therefore, driving torque generated by the rotor 7 is transmitted to a wheel through the rotor base 5 and the hub. |
