Inverter arrangement for an electric work vehicle

Patent metadata

Field	Value
Publication number	US-12565093-B2
Application number	US-202318371598-A
Country	US
Kind code	B2
Filing date	Sep 22, 2023
Priority date	Sep 26, 2022
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

A work vehicle includes a travel device, a battery, a motor configured to supply motive power to the travel device, an inverter configured to operate the motor, and an operation section. The battery is forward of the operation section, and the inverter is between the battery and the operation section in a side view.

First claim

What is claimed is:

1 . A work vehicle comprising:
a travel device; a battery; a motor configured to supply motive power to the travel device; an inverter configured to operate the motor; an operation section; a hood; and a pillar frame having a left section extending in the up-down direction, a right section extending in the up-down direction, and an upper section extending between an upper portion of the left section and an upper portion of the right section, wherein the battery is forward of the operation section, wherein the inverter is between the battery and the operation section in a side view, wherein the inverter extends in an up-down direction in a side view and extends in a left-right direction that intersects with a direction along which the work vehicle moves forward in a plan view, wherein the pillar frame is between the battery and the operation section in a side view, wherein the pillar frame supports the hood, and wherein the inverter is between the left section and the right section and below the upper section in a front view, and the inverter is in a region surrounded by the pillar frame.

2 . The work vehicle according to claim 1 , further comprising:
a steering wheel configured to operate the travel device and located at a front portion of the operation section; and a steering shaft configured to operate the travel device and extending downward from the steering wheel, and wherein the inverter is between the battery and the steering shaft in a side view.

3 . The work vehicle according to claim 1 ,
wherein the motor is below the inverter.

4 . A work vehicle comprising:
a work device; a travel device; a battery; a motor configured to supply motive power to the travel device; an inverter configured to operate the motor; a transmission case housing a transmission for travel; an operation section; an operator seat included in the operation section; a link mechanism disposed on the transmission case, configured to be raised and lowered, and joined to the work device; a hydraulic cylinder disposed on the transmission case and configured to raise and lower the link mechanism; a hydraulic pump configured to supply hydraulic oil to the hydraulic cylinder; and a pump motor configured to drive the hydraulic pump, and wherein: the motor, the transmission, and the travel device are configured such that motive power from the motor is transmitted to the transmission and transmitted from the transmission to the travel device, the battery is forward of the operation section, the inverter is between the battery and the operation section in a side view, the transmission case is below the operator seat, and the pump motor is between the operator seat and the transmission case in a side view.

Assignees

• Kubota Kk

Inventors

• Ono Kohei
• Odagiri Makoto

Classifications

• B60Y2200/221

  Tractors · CPC title

• B60K2001/0411

  Arrangement in the front part of the vehicle · CPC title

• B60K17/28

  characterised by arrangement, location, or type of power take-off · CPC title

• B60K17/06

  of change-speed gearing (B60K17/10 - B60K17/16 take precedence) · CPC title

• Y02T10/72

  Electric energy management in electromobility · CPC title