The invention relates to the field of engineering machinery, and provides an operation machinery heat management system, a control method thereof and operation machinery, the operation machinery heat management system comprises a battery pack, a heat pump air-conditioning loop, an electric drive circulation loop, a hydraulic circulation loop and a heat exchanger, and the battery pack is provided with a heat exchange channel for refrigerant circulation. The heat exchanger comprises a first heat exchange cavity and a second heat exchange cavity, the first heat exchange cavity comprises a first heat exchange cavity and a second heat exchange cavity, and the second heat exchange cavity comprises a third heat exchange cavity and a fourth heat exchange cavity. The first heat exchange cavity and the third heat exchange cavity are both connected with the electric drive loop, the second heat exchange cavity communicates with the hydraulic loop, and the fourth heat exchange cavity is connected with the heat pump loop. The battery pack adopts a refrigerant direct-cooling and direct-heating design, an intermediate heat exchange process is cancelled, the efficiency is higher, the speed is higher, the refrigerant exchanges heat with the cooling liquid and the hydraulic oil in the heat exchanger, external air does not need to participate in the heat exchanger, and the defrosting time in winter is effectively shortened. And the system integration degree is high, waste heat of an electric drive and hydraulic system is fully utilized, the energy utilization rate is increased, and system energy consumption is reduced.
本发明涉及工程机械领域,提供一种作业机械热管理系统及其控制方法、作业机械,包括电池包、热泵空调回路、电驱循环回路、液压循环回路、换热器,电池包设有供冷媒流通的换热通道。换热器包括第一换热腔体和第二换热腔体,第一换热腔体包括第一换热腔和第二换热腔,第二换热腔体包括第三换热腔和第四换热腔。第一换热腔和第三换热腔均与电驱回路连接,第二换热腔与液压回路连通,第四换热腔与热泵回路连接。电池包采用冷媒直冷直热设计,取消中间换热过程,效率更高,速度更快,且冷媒与冷却液、液压油在换热器内进行换热,无需外界空气参与,有效减少冬季除霜时间。且系统集成度高,充分利用电驱、液压系统余热,提升能源利用率,降低系统能耗。
Work machine thermal management system, control method therefor, and work machine
作业机械热管理系统及其控制方法、作业机械
2024-08-09
Patent
Electronic Resource
Chinese
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 |
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