Whole vehicle heat management system of pure electric vehicle

Abstract

The invention relates to a thermal management system for a pure electric vehicle, which is characterized in that it includes an electric drive system and a charger cooling circuit, a power battery cooling circuit, a power battery charging heating circuit, a passenger compartment heating circuit and a passenger compartment refrigeration circuit; The electric drive system and charger cooling circuit includes radiators, fans, kettles connected by pipelines, the electric drive system and charger cooling water pump installed in the circuit, as well as the motor controller and DCDC, as well as the charger and motor. The radiator realizes liquid-gas heat exchange to cool the heat dissipation components. Improve the environmental adaptability of electric vehicles, the power performance in high-temperature environments, the durability of key components, and the energy utilization efficiency of the entire vehicle.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a thermal management system for a pure electric vehicle. Background technique [0002] Pure electric vehicles have the characteristics of energy saving and environmental protection, simple structure, convenient use and maintenance, etc., and have gradually become the research hotspots of major automobile manufacturers. However, because the power battery and other components are greatly affected by the ambient temperature, the market range in which electric vehicles can operate is limited. [0003] In order to ensure the normal operating temperature range of the battery, the existing battery thermal management technology solutions usually use air cooling for battery cooling, supplemented by control strategies to limit the discharge power, and then control the temperature rise of the battery body; for low-temperature charging and heating of the battery, more Adopt the me...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that each system of a pure electric vehicle, especially the power battery system works within the optimum operating temperature range and the components in the synchronous lifting loop system, and the existing electric vehicle products lack a complete vehicle thermal system. Management system, each system lacks a mutual integration scheme, the utilization efficiency of components is low, the function is single, and the defects of the environmental adaptability of the vehicle cannot be improved well. Provide a structure design that is reasonable, feasible, stable, and adaptable to different environments. Vehicle thermal management system of pure electric vehicles with performance degradation due to thermal protection

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