Electric vehicle battery thermal management and air conditioning heat pump combined system and control method
A technology of electric vehicles and combined systems, applied in electric vehicles, battery/fuel cell control devices, secondary batteries, etc.
Active Publication Date: 2021-02-26
ANYANG INST OF TECH
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Problems solved by technology
After investigation, experts and scholars at home and abroad focus their research on a separate high-efficiency battery thermal management system and a separate high-efficiency heat pump air-conditioning system in order to achieve the purpose of improving the mileage of electric vehicles; There are few studies on the
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[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0045] Such as figure 1 As shown, an electric vehicle battery thermal management and air-conditioning heat pump combined system of an embodiment includes a scroll compressor 1, a three-position four-way valve 2, a gas-liquid separator 3, an external heat exchanger 4, and a liquid storage dryer One 5, 7, throttle expansion valve 6, battery heat exchanger 8, vehicle interior heat exchanger 9, circulation pump 10 and solenoid control valve 1 V1, solenoid control valve 2 V2, solenoid control valve 3 V3, solenoid control valve 4 V4 , Electromagnetic control valve five V5, electromagnetic control valve...
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The invention discloses an electric vehicle thermal management and air-conditioning heat pump combined system, which includes a compressor, a three-position four-way valve, and the B port, T port, and A port of the three-position four-way valve are separated from the external heat exchanger and gas-liquid respectively. The outlet of the compressor is connected to the P port of the three-position four-way valve, the inlet of the compressor is connected to the gas-liquid separator, and the other end of the outside heat exchanger is connected to the storage tank in turn. Liquid dryer 1 and liquid storage dryer 2 are then connected to the battery heat exchanger and the heat exchanger in the car. The two ends of the heat exchanger in the car are connected in parallel with the two ends of the battery heat exchanger. One end of the heat exchanger in the car exchanges heat with the battery One end of the device is provided with a circulation pump. It can realize cooling, heating, battery pack cooling, battery pack preheating, cooling and battery pack cooling, heating and battery pack preheating and reheating modes. The combination of battery thermal management system and air conditioning heat pump system makes the internal system of electric vehicles More concise, more economical, energy-saving and environmentally friendly.
Description
technical field [0001] The invention relates to the fields related to thermal management of power batteries of pure electric vehicles and automotive air-conditioning heat pumps, and in particular to a battery thermal management air-conditioning heat pump combined system combining an electric vehicle battery thermal management system and an air-conditioning heat pump system. Background technique [0002] With the development of my country's economy and the increase of national income, the per capita car ownership has also increased, and the energy consumption of the transportation industry has become more and more important in the entire energy consumption structure. As the main source of power for automobiles, oil consumption is increasing year by year, which has led to an increase in China's dependence on foreign oil imports from 7.5% in 1993 to 61.55% in 2014, seriously affecting China's energy security. The transportation industry is a pillar industry that supports the de...
Claims
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IPC IPC(8): F25B13/00F25B41/20F25B41/31F25B43/00H01M10/613H01M10/615H01M10/617H01M10/625H01M10/663B60L58/26B60L58/27B60H1/00
CPCF25B13/00F25B43/006F25B43/00H01M10/613H01M10/615H01M10/617H01M10/625H01M10/663B60H1/00278B60H2001/00307F25B2600/2519F25B2313/001F25B2313/0233F25B41/20F25B41/31Y02T10/88Y02B30/70Y02T10/70Y02E60/10
Inventor 冯国超马洪儒王飞亢凤林
Owner ANYANG INST OF TECH