Energy storage device of heat pump type double-energy storage electric vehicle air conditioner

Abstract

The invention discloses an energy storage device of a heat pump type double-energy storage electric vehicle air conditioner. The device is mounted in an electric vehicle and comprises a compressor, a four-way valve, a condenser, an expansion valve, an energy accumulator, a vapor-liquid separator, a circulating pump and an evaporator, wherein the compressor is connected with an external direct-current power supply or an electric vehicle power supply and driven by the external direct-current power supply or the electric vehicle power supply; and the circulating pump is connected with the electric vehicle power supply. In the invention, the capacity of the vehicular storage battery is not consumed, synchronous energy accumulation is realized by use of the electric vehicle charging process, and thus the production cost is remarkably reduced, or the endurance of the electric vehicle is improved. Through the heating and heat accumulation of the heat pump, the COP value of the system is effectively increased, and the energy consumption is reduced. The switching of refrigeration and heating functions is realized through switching of the four-way valve; a secondary refrigerant realizes double accumulation of cold and heat as well as energy release through the circulation of the circulating pump; and the needs for refrigeration, heating, dehumidification and the like of automobiles are met by running in different modes.

Description

[0001] Technical field: [0002] The invention relates to the field of heat pump type electric vehicle air conditioners, in particular to a heat pump type dual energy storage electric vehicle air conditioner energy storage device. [0003] Background technique: [0004] At present, problems such as global warming, air pollution, and high energy costs are becoming more and more serious. As one of the main sources of environmental pollution and energy consumption, automobiles have received more and more attention on energy conservation and emission reduction. Governments and automobile companies in various countries Both regard energy conservation and environmental protection as the guiding direction for future automotive technology development, so energy-saving and environmentally friendly electric vehicles will emerge as the times require. [0005] With the development of electric vehicles, the research and development of air conditioners for electric vehicles presents new issu...

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Problems solved by technology

[0007] However, there are still some problems in the above solutions: 1. Turning on the air-conditioning system while the car is driving will increase the power consumption of the battery and shorten the original cruising distance of the electric car; 2. Turning on the air-conditioning system of the electric car will affect the dynamic performance of the car; 3. It is necessary to add PTC heating equipment for car air conditioner heating in winter; 4. To meet the requirements of use, it is necessary to increase the number of batteries

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