Drive device
AssigneeNidec Corporation
InventorsYuki Ishikawa, Keisuke Nakata
Life of this patent
Estimating the term…
Abstract
A drive device includes a first catch tank above a first gear and including a first bent portion bent between the first gear and a second gear, and a second catch tank below the first catch tank and including a second bent portion that is bent downward. A space above the second bent portion communicates with a space above the first bent portion. A third catch tank is above the second gear, and includes a third bent portion that is bent toward between the first gear and the second gear. A space above the third bent portion communicates with the space above the first bent portion. A fourth catch tank is in front of the second gear and above the third gear, and includes a fourth bent portion that is bent downward.
Claims17
A drive device comprising:
- a motor including a rotor rotatable about a motor axis extending along a first direction;
- a power transmission including a first gear, a second gear that meshes with the first gear, and a third gear that is connected to the motor to transmit a rotational driving force of the motor to the second gear;
- and
- a housing that houses the motor and the power transmission;
- wherein
- a direction perpendicular to the first direction is defined as a second direction;
- a direction perpendicular to the first direction and the second direction is defined as a third direction;
- the first gear and the third gear are side by side in the second direction;
- the third gear is on a first side of the first gear in the second direction;
- the second gear is between the first gear and the third gear in the second direction, and on a first side of the first gear in the third direction;
- the housing includes:
- a first catch tank on the first side of the first gear in the third direction;
- a second catch tank on a second side of the first catch tank in the third direction;
- a third catch tank on the first side of the second gear in the third direction;
- and
- a fourth catch tank on the first side of the second gear in the second direction and on the first side of the third gear in the third direction;
- the first catch tank includes a first bent portion that is bent toward between the first gear and the second gear;
- the second catch tank includes a second bent portion that is bent toward the second side in the third direction;
- the third catch tank includes a third bent portion that is bent toward between the first gear and the second gear;
- the fourth catch tank includes a fourth bent portion that is bent toward the second side in the third direction;
- a space on the first side of the second bent portion in the third direction communicates with a space on the first side of the first bent portion in the third direction;
- a space on the first side of the third bent portion in the third direction communicates with the space on the first side of the first bent portion in the third direction;
- a space on the first side of the fourth bent portion in the third direction communicates with the space on the first side of the third bent portion in the third direction;
- an oil storage portion in which oil is stored is provided in the housing at a portion of the housing on the second side in the third direction;
- a portion of the first gear on the second side in the third direction is housed in the oil storage portion;
- and
- the space on the first side of the first bent portion in the third direction communicates with the oil storage portion.
Dependencies are inferred from the claim text.