To provide an electric construction machine with which a hydrogen tank storing fuel of a fuel cell and a heat exchanger radiating heat of coolant of a fuel cell can be reduced in size.SOLUTION: A hydraulic shovel 100 comprises: vehicle bodies 101 to 103; an electric motor 2 that is a power source of the vehicle bodies 101 to 103; a fuel cell 3 generating power; a power control device 6 controlling the power supplied to the electric motor 2; and an external power receiver 5 receiving power from a commercial power supply device 11. The power control device 6 controls the power supplied from the fuel cell 3 and the external power receiver 5 to the electric motor 2.SELECTED DRAWING: Figure 2

    【課題】燃料電池の燃料を貯留する水素タンク、および燃料電池のクーラントの熱を放熱する熱交換器を小型化することが可能な電動式建設機械を提供する。【解決手段】車体101~103と、車体101~103の動力源である電動機2と、電力を生成する燃料電池3と、電動機2に供給される電力を制御する電力制御装置6とを備えた油圧ショベル100において、商用電源装置11からの電力を受電する外部受電器5を備え、電力制御装置6は、燃料電池3および外部受電器5から電動機2に供給される電力を制御する。【選択図】 図2


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    Title :

    ELECTRIC CONSTRUCTION MACHINE


    Additional title:

    電動式建設機械


    Contributors:

    Publication date :

    2025-03-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E02F Baggern , DREDGING / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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