The embodiment of the invention provides a thermal management system for a pure electric crawler crane and the crane. The method comprises the steps that a motor loop comprises a first three-way valve, a first water pump and a plurality of motors, the motors comprise hydraulic pump motors, and the motor loop is connected with a battery loop through the first three-way valve and a second three-way valve; the battery loop comprises a second three-way valve, a power battery and a second water pump; the controller is configured to control the first three-way valve to be in loop connection with the first water pump and the battery and to be disconnected with the hydraulic pump motor and control the second three-way valve to be in loop connection with the second water pump and the motor and to be disconnected with the power battery under the condition that the power battery and the hydraulic pump motor have heating requirements or heat dissipation requirements; and cooling liquid in the motor loop flows into the power battery through the first three-way valve to heat or dissipate heat of the power battery. According to the technical scheme, a plurality of heat management loops of the crawler crane are combined together for integral design and control, so that the energy efficiency of the battery can be improved, and the cost can be reduced.

    本申请实施例提供一种用于纯电履带起重机的热管理系统及起重机。方法包括:电机回路包括第一三通阀、第一水泵和多个电机,其中多个电机包括液压泵电机,电机回路通过第一三通阀和第二三通阀与电池回路连接;电池回路包括第二三通阀、动力电池和第二水泵;控制器,被配置为在动力电池和液压泵电机存在加热需求或散热需求的情况下,控制第一三通阀与第一水泵和电池回路连接且与液压泵电机断开连接,并控制第二三通阀与第二水泵和电机回路连接且与动力电池断开连接,以使电机回路中的冷却液经第一三通阀流入动力电池对其进行加热或散热。上述技术方案,将履带起重机的多个热管理回路结合在一起整体设计与控制,不仅能够提升电池能效,还能降低成本。


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    Title :

    Thermal management system for pure electric crawler crane and crane


    Additional title:

    用于纯电履带起重机的热管理系统及起重机


    Contributors:
    DENG CHENG (author) / ZHANG YUZHU (author) / LU PENGFEI (author) / LIU YUAN (author) / XIA YUAN (author)

    Publication date :

    2023-01-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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 / 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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