Electric work machine
US12146295B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 2022 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Oct 14, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/0866
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hydraulic excavator as an electric work machine includes a lower traveling body, an upper swivel body located above the lower traveling body and provided to be swivelable with respect to the lower traveling body, an electric motor arranged in the upper swivel body, a hydraulic pump arranged in the upper swivel body and driven by the electric motor, a battery unit arranged in the upper swivel body and storing electric power to drive the electric motor, and a hydraulic actuator driven by hydraulic oil supplied from the hydraulic pump. The upper swivel body has a swivel frame at a bottom portion thereof. The battery unit is arranged on the swivel frame. The electric motor and the hydraulic pump are arranged on the swivel frame, side by side in a left-right direction of the upper swivel body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.