# US 12,600,251 B2 · Electric work vehicle

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,600,251 B2
- Document ID: US12600251B2
- Status: Granted
- Kind: B2
- Application number: 18/380,953
- Filed: 2023-10-17
- Published: 2024-04-18
- Granted: 2026-04-14
- Earliest claimed: 2022-10-18
- Assignees: Kubota Corporation
- Applicants: Kubota Corporation
- Inventors: Tatsuya Nagatomi; Takafumi Komatsu
- Web page: https://patentgrep.com/patent/US12600251B2

## CPC

- B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- B60L 7/16: for vehicles comprising converters between the power source and the motor
- B60L 50/61: by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
- B60L 53/20: characterised by converters located in the vehicle
- B60L 2200/40: Working vehicles
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/14: Plug-in electric vehicles
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An electric work vehicle includes an on-board charger, a power reception connector enabling attachment and detachment of a charging cable that is to be connected to the on-board charger, and an energizing cable that connects the power reception connector and the on-board charger to each other. Charging ports that enable attachment and detachment of the power reception connector are provided in both a left side portion of a body and a right side portion of the body. The charging ports are provided at positions higher than upper ends of travel devices.

## Claims

### Claim 1

An electric work vehicle comprising:
an electric motor configured to drive at least one travel device;
a battery configured to supply power to the electric motor;
an on-board charger configured to charge the battery;
a power reception connector connectable to the on-board charger, and to which a charging cable connected to a charging stand is attachable and from which the charging cable is detachable;
an energizing cable connecting the power reception connector and the on-board charger to each other; and
charging ports to which the power reception connector is attachable and from which the power reception connector is detachable, the charging ports located at positions higher than an upper end of the at least one travel device in a left side portion of a body of the electric work vehicle and a right side portion of the body, respectively,
wherein the at least one travel device comprises front wheels and rear wheels, and
wherein the charging ports are respectively located above the rear wheels in the left side portion of the body and the right side portion of the body, and
wherein the on-board charger has a cable connection located at which the energizing cable is connected, and a distance from the cable connection location to the charging port of the left side portion is equivalent to a distance from the cable connection location to the charging port of the right side portion.

### Claim 2 (depends on 1)

The electric work vehicle according to claim 1, further comprising:
caps configured to respectively open and close the charging ports.