Elektrische Arbeitsmaschine

Details

Veröffentlichungs-Nr.

EP4786686

Anmeldetag

12. Juli 2024

Veröffentlichung

3. April 2025

Rechtsraum

EP

IPC

E02F9/00

Abstract

Provided is an electrically driven work machine including a battery, an electrically driven motor that uses electric power of the battery as a driving source, a hydraulic pump that is driven by the electrically driven motor and that pumps a hydraulic operating fluid into a hydraulic actuator, a hydraulic operating fluid cooling circuit having an oil cooler that cools the hydraulic operating fluid, a cooling refrigerant circuit that circulates a cooling refrigerant, and a battery temperature adjusting circuit that circulates a heat medium that adjusts a temperature of the battery, the battery temperature adjusting circuit having an electric heater that heats the heat medium, a battery cooling heat exchanger that cools the heat medium by making the heat medium exchange heat with the cooling refrigerant circulating through the cooling refrigerant circuit, and a battery warming-up heat exchanger that heats the heat medium by making the heat medium exchange heat with the hydraulic operating fluid flowing through the hydraulic operating fluid cooling circuit.

Anmelder

Firma

Hitachi Construction Machinery Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete