Vehicle battery fast charging heat management system based on L-shaped pulsating heat pipe and temperature control method

Abstract

The invention discloses a vehicle battery fast charging heat management system based on an L-shaped pulsating heat pipe and a temperature control method. The L-shaped pulsating heat pipe is matched with a battery module and a liquid cooling system, the vertical end of the pulsating heat pipe is matched with a contact key to be in contact with the side surface of the battery module, and the horizontal end of the pulsating heat pipe is in contact with a water cooling plate; the characteristic of anti-gravity heat transmission of the L-shaped pulsating heat pipe is fully exerted, the heat exchange coefficient of the heat management system is enhanced, the temperature of the battery module in a fast charging state is reduced, and the voltage and current limitation of the battery is relieved. The temperature control scheme of the pulsating heat pipe is provided for the fast charging mode of the battery module, the energy consumption of the liquid cooling system is reduced, and the application range of the vehicle battery heat management system is expanded.

Description

technical field [0001] The invention relates to the technical field of thermal management systems for new energy vehicle batteries, in particular to a fast-charging thermal management system and temperature control method for vehicle batteries based on L-shaped pulsating heat pipes. Background technique [0002] Electric vehicles are one of the main methods to solve the large amount of carbon emissions generated in transportation. my country proposes to achieve carbon neutrality before 2060, which makes the electric vehicle industry vigorously develop. Moreover, electric vehicles do not produce fuel exhaust gas, have no damage to the environment, and have a high energy conversion rate. Electric vehicles have become the leader in the future development of the automotive industry. [0003] With the development of electric vehicles, the source of its energy - battery, has become one of the important problems in the development of electric vehicles. Lithium batteries for vehicl...

AI Technical Summary

Problems solved by technology

[0005] At present, there is still no technical solution to properly solve the high heat caused by fast charging of car batteries. More solutions are to greatly limit the maximum charging voltage to maintain the maximum temperature of the battery not exceeding the rated temperature

Such limitations make it impossible for battery fast charging technology to be fully developed in the field of new energy vehicles, and also make it impossible to properly solve the problem of battery charging for new energy vehicles

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