Electric work vehicle

Patent metadata

Field	Value
Publication number	US-12409740-B2
Application number	US-202418734667-A
Country	US
Kind code	B2
Filing date	Jun 5, 2024
Priority date	Dec 27, 2021
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

An electric work vehicle includes a first removable cover to cover a portion of a first harness exposed downward through a first opening, a second removable cover to cover a portion of a second harness exposed downward through a second opening, and a third removable cover to cover a portion of a motor exposed downward through a third opening.

First claim

What is claimed is:

1. An electric work vehicle comprising:
a battery;
an inverter to convert DC power from the battery to AC power;
a motor drivable by electric power supplied from the inverter;
a travel device drivable by the motor;
a DC-DC converter to step down electric power from the battery;
a first harness connecting the battery and the DC-DC converter;
a second harness connecting the inverter and the motor;
a body frame including a first opening through which the first harness is exposed downward, a second opening through which the second harness is exposed downward, and a third opening through which the motor is exposed downward, and supporting the battery, the inverter, the motor, and the DC-DC converter;
a first removable cover covering a portion of the first harness exposed downward through the first opening;
a second removable cover covering a portion of the second harness exposed downward through the second opening; and
a third removable cover covering a portion of the motor exposed downward through the third opening.

2. The electric work vehicle according to claim 1 , wherein
the motor is water-cooled; and
the third cover covers a water-cooled portion of the motor.

3. The electric work vehicle according to claim 1 , wherein at least any of the first cover, the second cover, or the third cover includes a drain hole.

4. The electric work vehicle according to claim 1 , further comprising:
a transmission shaft to transmit motive power from the motor to the travel device; wherein
the transmission shaft is held by at least any of the first cover, the second cover, or the third cover.

Assignees

• Kubota Kk

Inventors

• Okazaki Kazuto
• Kawabata Shinichi
• Miyazaki Daisuke
• Mantoku Naoto

Classifications

• B60Y2200/221

  Tractors · CPC title

• B60Y2400/61

  Arrangements of controllers for electric machines, e.g. inverters · CPC title

• B60Y2410/115

  Electric wiring; Electric connectors · CPC title

• B60K1/00

  Arrangement or mounting of electrical propulsion units (B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00) · CPC title

• B60L2210/40

  DC to AC converters · CPC title