The invention provides a multi-heat-source heat pump type electric vehicle heat management system. The requirements of six temperature working conditions and three driving working conditions under all working conditions can be met only by controlling five simple valves. The mode that an air source heat pump is combined with a water loop heat pump is adopted, a low-temperature heat source is provided through an air source, system waste heat and a small amount of electric energy, a multi-heat-source heat pump is formed, the requirements of different low-temperature working conditions can be met, and the energy utilization efficiency is effectively improved; and under the extremely low-temperature working condition, the water loop heat pump mode is switched to operate, so that a series of problems such as incapability of operating the heat pump and frosting caused by the air source heat pump can be avoided. According to the system, a passenger compartment heat management subsystem, a battery heat management subsystem and a power assembly heat management subsystem are organically integrated, the valve control operability is high, the component structures are compact, and the integration degree is high; and the passenger compartment heat management system adopts a water-cooled condenser as a heat release device of a refrigerating circuit, and the common problems existing when a condenser is used at present can be solved.
本发明提供一种多热源热泵型电动汽车热管理系统,仅通过控制五个简单阀门,即可以满足六个温度工况及三个行驶工况的全工况需求。本发明采用空气源热泵结合水环热泵的方式,由空气源、系统余热、少量电能提供低温热源,形成多热源热泵,可以实现不同低温工况的需求,并有效提高能源利用效率;在极端低温工况下,切换成水环热泵模式运行,可以避免由空气源热泵造成的如无法运行热泵、结霜等一系列问题。本发明将乘员舱热管理、电池热管理、动力总成热管理三个子系统进行有机整合,阀门控制可操作性强、组成部件结构紧凑、集成度高;其中,乘员舱热管理系统采用水冷冷凝器作为制冷回路的放热装置,可以解决目前使用冷凝器普遍存在的问题。
Multi-heat-source heat pump type electric vehicle heat management system
一种多热源热泵型电动汽车热管理系统
2021-09-24
Patent
Electronic Resource
Chinese
IPC: | F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / 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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