Power transmission device
A power transmission device, includes a motor; a gear mechanism connected downstream of the motor; a drive shaft connected downstream of the gear mechanism and disposed passing through an inner periphery of the motor; a pump that sucks oil through a pump inlet; and a plate that includes a facing surface facing the gear mechanism in an axial direction. The pump inlet is disposed adjacent to the plate on a back surface side of the facing surface.
1. A power transmission device, comprising:
a motor;
a gear mechanism connected downstream of the motor, the gear mechanism including a planetary reduction gear and a differential mechanism;
a drive shaft connected downstream of the gear mechanism and disposed passing through an inner periphery of the motor;
a pump configured to suck oil through a pump inlet;
a plate that includes a facing surface facing the planetary reduction gear and the differential mechanism in an axial direction and that supports the planetary reduction gear and the differential mechanism;
a supporting wall provided on a gear mechanism side of the motor, the supporting wall supporting the motor, wherein
the pump inlet is immersed in oil of an oil storage portion disposed in a first space formed between the plate and the supporting wall, the first space being separated from a second space wherein the planetary gear mechanism and the differential mechanism are disposed and the first space communicating with a third space wherein the motor is disposed through an opening in the supporting wall.
2. The power transmission device according to claim 1 , wherein
the plate is interposed between the motor and the gear mechanism in the axial direction.
3. The power transmission device according to claim 1 , wherein
the pump inlet serves as a suction port of a strainer.
4. The power transmission device according to claim 3 , wherein
a longitudinal direction of a main body portion of the strainer intersects with an axial direction of the motor.
5. The power transmission device according to claim 3 , wherein
the motor includes a rotor and a stator positioned on an outer side in a radial direction of the rotor, and
a main body portion of the strainer overlaps the motor on the outer side in the radial direction.
6. The power transmission device according to claim 5 , wherein
the main body portion of the strainer overlaps the rotor of the motor on the outer side in the radial direction.
7. The power transmission device according to claim 5 , wherein
the main body portion of the strainer does not overlap the gear mechanism in the radial direction.
8. The power transmission device according to claim 1 , further comprising:
a bearing supported by the plate, wherein
the gear mechanism is supported by the plate via the bearing.
9. The power transmission device according to claim 1 , further comprising:
a park pole supported by the plate.