The invention relates to the field of engineering machinery, and discloses a thermal management system and method suitable for electric engineering machinery and the engineering machinery. The thermal management system comprises an air conditioner circulation subsystem, a hydraulic oil thermal circulation subsystem, a motor thermal circulation subsystem, a battery thermal circulation subsystem and a control subsystem. The air conditioner circulation subsystem comprises a refrigeration circulation loop and a heating circulation loop. The hydraulic oil thermal circulation subsystem is connected with the heating circulation loop through a first heat exchanger; and the battery thermal cycle subsystem is connected with the refrigeration cycle loop through a second heat exchanger, or the battery thermal cycle subsystem is connected with the refrigeration cycle loop through the second heat exchanger and is connected with the hydraulic oil thermal cycle subsystem through a third heat exchanger. The heat management system disclosed by the invention can meet the motor heat dissipation requirement, the battery heat dissipation or heating requirement, the cab refrigeration or heating requirement and the low-temperature cold start requirement of the hydraulic system, the cost is saved, the energy utilization rate is improved, and the electric energy consumption of the battery is reduced.

    本申请涉及工程机械领域,公开一种适用于电动工程机械的热管理系统、方法及工程机械。热管理系统包括空调循环子系统、液压油热循环子系统、电机热循环子系统、电池热循环子系统和控制子系统;空调循环子系统包括制冷循环回路和制热循环回路;液压油热循环子系统与制热循环回路通过第一换热器连接;电池热循环子系统与制冷循环回路通过第二换热器连接,或者,电池热循环子系统与制冷循环回路通过第二换热器连接并与液压油热循环子系统通过第三换热器连接。本申请公开的热管理系统可实现电机散热需求、电池散热或加热需求、驾驶室制冷或制热需求以及液压系统低温冷启动的需求,节省了成本,提高能量利用率高,降低电池电能消耗。


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    Title :

    Thermal management system and method suitable for electric engineering machinery and engineering machinery


    Additional title:

    适用于电动工程机械的热管理系统、方法及工程机械


    Contributors:
    WEI XING (author) / LIU YUAN (author) / XIAO CHAOBO (author) / LIAO YINPING (author) / HE TINGPU (author)

    Publication date :

    2024-08-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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