STATOR-AXLE FOR IN-WHEEL MOTOR OF AN ELECTRIC VEHICLE

摘要

One or more wheels of an electrically powered vehicle contains a motor comprising a rotor and a stator that is mounted on an integrated structure having a motor stator mounting portion and wheel axle portion. The structure is fabricated from a unitary non-ferromagnetic substance. A rotor housing is journalled to the axle portion on both sides of the motor stator mounting portion via bearings. A wheel assembly can be mounted on the rotor housing to be driven by the motor. Forced-air cooling is provided through a hollow central passage. A plug separates the passage cooling is provided through a hollow central passage. A plug separates the passage cooling is provided through a hollow central passage. A plug separates the passage into two distinct sections, an inlet and an outlet. A plurality of cavities, provided with heat exchanger surfaces, are contained within the stator mounting portion. Channels at each end of each cavity extend in the radial direction into the central passage. Cooling air enters from one end of the central passage, is directed through the inlet channels, the cavities and outlet channels before exiting through the opposite end of the central passage. Additional channels provide wire connection to the stator.