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
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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.
Claims3
An electric mower in which a contactless charging system is incorporated, wherein
- the contactless charging system comprises:
- a primary coil unit that includes a coil power supply circuit portion and a primary coil arranged above the coil power supply circuit portion, the primary coil unit being arranged on a ground surface;
- a battery pack arranged at a rear portion of a vehicle body frame, between a left and right pair of rear wheels;
- a secondary coil that electromagnetically couples with the primary coil;
- a charging circuit portion configured to rectify power from the secondary coil and supply the rectified power to the battery pack;
- and
- a coil support member for arranging the secondary coil below the battery pack,
- a mower unit hangs down elevatably at a front portion of the vehicle body frame, and
- an electric motor unit configured to drive the rear wheels using power supplied from the battery pack via a motor power supply circuit portion is arranged forward of an axle center of the rear wheels, between the rear wheels.
Dependencies are inferred from the claim text.