A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
[Problem] To provide an electric working machine capable of maintaining a good machine body balance even when a large capacity (large-sized) battery unit is used.[Solution] A hydraulic excavator as an electric working machine includes: a lower traveling body; an upper turning body that is positioned above the lower traveling body and provided to be turnable with respect to the lower traveling body; an electric motor that is arranged in the upper turning body; and a battery unit that is arranged in the upper turning body and stores electric power for driving the electric motor. The upper turning body includes a turning frame at a bottom. The battery unit is arranged on the turning frame. The electric motor is arranged above the battery unit.
[Problem] To provide an electric working machine capable of maintaining a good machine body balance even when a large capacity (large-sized) battery unit is used.[Solution] A hydraulic excavator as an electric working machine includes: a lower traveling body; an upper turning body that is positioned above the lower traveling body and provided to be turnable with respect to the lower traveling body; an electric motor that is arranged in the upper turning body; and a battery unit that is arranged in the upper turning body and stores electric power for driving the electric motor. The upper turning body includes a turning frame at a bottom. The battery unit is arranged on the turning frame. The electric motor is arranged above the battery unit.
ELECTRIC WORKING MACHINE
ELEKTRISCHE ARBEITSMASCHINE
MACHINE DE TRAVAIL ÉLECTRIQUE
KITAHARA SATOSHI (author)
2023-06-07
Patent
Electronic Resource
English
ELECTRIC WORKING MACHINE AND METHOD FOR CONTROLLING ELECTRIC WORKING MACHINE
| European Patent Office | 2024