In-wheel motor and wheel assembly with this in-wheel motor
A motor has a stator core, a coil, a rotor, and a motor case in which the stator core, the coil, and the rotor are housed. The motor is also provided with a fluid carrying member that is arranged around a coil end of the coil in the motor case and has an inlet hole that is communicated with a fluid supply source and a distribution hole that is communicated with a space inside the motor case.
1. A motor comprising:
a stator core;
a coil;
a rotor;
a motor case in which the stator core, the coil, and the rotor are housed; and a substantially annular fluid carrying member which is provided on a coil end of the coil in the motor case and has an inlet hole that is communicated with a fluid supply source and a distribution hole that is communicated with a space inside the motor case, wherein
the fluid supply source is driven by rotational output of a rotating shaft of a counter gear which reduces a rate of rotational output of an output shaft of the motor and transmits a resultant rotational output to a wheel.
2. An in-wheel motor structure, comprising:
a motor that drives a wheel, which is arranged within the wheel and has a stator core, a coil, a rotor, and a motor case in which the stator core, the coil, and the rotor are housed;
an oil pump that is driven by rotational output of a rotating shaft of a counter gear which reduces a rate of rotational output of an output shaft of the motor and transmits a resultant rotational output to the wheel; and
a substantially annular fluid carrying member which is provided on a coil end of the coil in the motor case and has an inlet hole that is communicated with the oil pump, and a distribution hole that is communicated with a space inside the motor case.
3. An in-wheel motor structure, comprising:
a motor that drives a wheel, which is arranged within the wheel and has a stator core, a coil, a rotor, and a motor case in which the stator core, the coil, and the rotor are housed;
a counter gear which reduces a rate of rotational output of an output shaft of the motor and transmits a resultant rotational output to the wheel;
a bearing that rotatably supports a rotating shaft of the counter gear;
a fluid supply source that is driven by rotational output of the rotating shaft of the counter gear; and
a substantially annular fluid carrying member which is provided on a coil end of the coil in the motor case and has an inlet hole that is communicated with the fluid supply source and a distribution hole that is communicated with the bearing.
4. An in-wheel motor structure, comprising:
a motor that drives a wheel, which is arranged within the wheel and has a stator core, a coil, a rotor, and a motor case in which the stator core, the coil, and the rotor are housed;
a counter gear which reduces a rate of rotational output of an output shaft of the motor and transmits a resultant rotational output to the wheel;
a bearing that rotatably supports a rotating shaft of the counter gear;
a fluid supply source that is driven by rotational output of the rotating shaft of the counter gear;
a substantially annular fluid carrying member which is provided on a coil end of the coil in the motor case and has an inlet hole that is communicated with the fluid supply source; and
a distribution hole which is formed in the motor case and supplies fluid from the fluid supply source to the bearing.