Electric work vehicle, battery pack for electric work vehicle and contactless charging system
AssigneeKubota Corporation
InventorsHirokazu Ito, Kazuo Koike, Yasuhiro Manji
Life of this patent
Estimating the term…
Abstract
An electric work vehicle includes: a battery pack that is arranged between a left rear wheel arranged outside of a left frame and a right rear wheel arranged outside of a right frame, the front end of the battery pack being located forward of an axle center of a rear wheel unit; a left motor that is arranged above the battery pack, in the periphery of the left rear wheel, receives a supply of power from the battery pack, and transmits rotational power to the left rear wheel; and a right motor that is arranged above the battery pack, in the periphery of the right rear wheel, receives a supply of power from the battery pack, and transmits rotational power to the right rear wheel.
Claims15
An electric work vehicle battery pack, comprising:
- a sealed battery case including a front case portion and a rear case portion;
- a horizontal partitioning wall that divides an interior of the front case portion into a first space and a second space in a vertical direction, and divides an interior of the rear case portion into a third space and a fourth space in the vertical direction;
- a battery electric unit accommodated in one of the first space, the second space, the third space and the fourth space;
- and
- a battery module accommodated in each of the remaining spaces among the first space, the second space, the third space and the fourth space.
An electric work vehicle, comprising:
- a battery pack mounted on a vehicle body;
- a left frame and a right frame that extend in a vehicle body front-rear direction with an interval therebetween in a vehicle body lateral direction;
- and
- a rear wheel unit having a left rear wheel that is arranged outside in the vehicle body lateral direction of the left frame, and a right rear wheel that is arranged outside in the vehicle body lateral direction of the right frame,
- wherein the battery pack comprises:
- a sealed battery case including a front case portion and a rear case portion;
- a horizontal partitioning wall that divides an interior of the front case portion into a first space and a second space in a vertical direction, and divides an interior of the rear case portion into a third space and a fourth space in the vertical direction;
- a battery electric unit accommodated in one of the first space, the second space, the third space and the fourth space;
- and
- a battery module accommodated in each of the remaining spaces among the first space, the second space, the third space and the fourth space, and
- a front end of the battery pack is arranged between the left rear wheel and the right rear wheel so as to be located forward of an axle center of the rear wheel unit.
An electric work vehicle, comprising:
- a left frame and a right frame that extend in a vehicle body front-rear direction with an interval therebetween in a vehicle body lateral direction;
- a rear wheel unit having a left rear wheel arranged outside of the left frame in the vehicle body lateral direction and a right rear wheel arranged outside of the right frame in the vehicle body lateral direction;
- a battery pack arranged between the left rear wheel and the right rear wheel, a front end of the battery pack being located forward of an axle center of the rear wheel unit in the vehicle body front-rear direction;
- a left motor that is arranged above the front end of the battery pack at a position on a vertical axis extending between the front end of the battery pack and the left motor in the periphery of the left rear wheel and is configured to receive a supply of power from the battery pack and transmit rotational power to the left rear wheel;
- and
- a right motor that is arranged above the front end of the battery pack at a position on a vertical axis extending between the front end of the battery pack and the right motor in the periphery of the right rear wheel and is configured to receive a supply of power from the battery pack and transmit rotational power to the right rear wheel.
Dependencies are inferred from the claim text.