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US 7,828,095 B2Granted
In-wheel motor and wheel assembly with this in-wheel motor
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsSatoshi Murata, Michitaka Tsuchida, Hiroaki Urano
Life of this patent
Estimating the term…
Abstract
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.
Claims4
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.
3 more elements
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.
1 more element
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.
3 more elements
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.
4 more elements
Dependencies are inferred from the claim text.