Lubricant through hole for transmission
The unit includes a housing configured to house oil, a rotating electric machine, a first gear connected downstream of the rotating electric machine, a second gear meshing with the first gear, a third gear connected downstream of the second gear, a fourth gear meshing with the third gear, a fifth gear connected downstream of the fourth gear, and a sixth gear meshing with the fifth gear. The rotating electric machine and the first gear are disposed on a first axis. The second gear and the third gear are disposed on a second axis. The fourth gear and the fifth gear are disposed on a third axis. The sixth gear is disposed on a fourth axis. When viewed in an axial direction, the first axis and the fourth axis are disposed in a lower side of the second axis and the third axis.
1 . A unit, comprising:
a housing configured to house oil, a rotating electric machine, a first gear connected downstream of the rotating electric machine, a second gear meshing with the first gear, a third gear connected downstream of the second gear, a fourth gear meshing with the third gear, a fifth gear connected downstream of the fourth gear, and a sixth gear meshing with the fifth gear, wherein
the rotating electric machine and the first gear are disposed on a first axis,
the second gear and the third gear are disposed on a second axis,
the fourth gear and the fifth gear are disposed on a third axis,
the sixth gear is disposed on a fourth axis,
when viewed in an axial direction, the first axis and the fourth axis are disposed at a lower side of the second axis and the third axis,
the oil scattered by rotation of the sixth gear is guided to a rotating electric machine side through a through hole provided in a portion of the housing disposed on a first gear side as viewed from the rotating electric machine, and
the through hole is provided in a lower side of the fourth axis in a direction of gravity.
2 . The unit according to claim 1 , wherein
when viewed in a radial direction, the first gear has a portion that overlaps the sixth gear.
3 . The unit according to claim 2 , wherein
the third gear and the fourth gear are disposed in a direction away from a stator of the rotating electric machine than the first gear, the second gear, the fifth gear, and the sixth gear.
4 . The unit according to claim 3 , further comprising:
a differential gear connected downstream of the sixth gear, wherein
the differential gear is disposed on the fourth axis, and
the differential gear protrudes in the direction away from the stator with respect to the sixth gear.
5 . The unit according to claim 1 , wherein
the third gear and the fourth gear are disposed in a direction away from a stator of the rotating electric machine than the first gear, the second gear, the fifth gear, and the sixth gear.
6 . The unit according to claim 5 , further comprising:
a differential gear connected downstream of the sixth gear, wherein
the differential gear is disposed on the fourth axis, and
the differential gear protrudes in the direction away from the stator with respect to the sixth gear.
7 . The unit according to claim 1 , wherein
when viewed in the axial direction, the first axis is disposed at an upper side of the fourth axis.
8 . The unit according to claim 1 , wherein
an oil reservoir formed by the oil has a portion overlapping the through hole when viewed in the axial direction and a portion not overlapping the through hole when viewed in the axial direction.