Heat management system and method of cylindrical battery pack

Abstract

The invention relates to a heat management system and method of a cylindrical battery pack. The heat management system of the cylindrical battery pack comprises an anomalous heat-conducting plate, a micro-heat tube array plate and a heat source. When dissipating heat, the planar structure of the plate surface of the anomalous heat-conducting plate is stuck with an evaporation section of the micro-heat tube array plate, and the evaporation section of the micro-heat tube array plate after absorbing the heat energy of the cylindrical battery pack delivered by the anomalous heat-conducting plate is subjected to a heat tube effect, and then heat exchange with the outside is carried out by the condensing section of the micro-heat tube array plate; when pre-heating, a heat source is arranged at the evaporation section of the micro-hot tube array plate, the planar structure of the plate surface of the anomalous heat-conducting plate is stuck with the condensing section of the micro-heat tube array plate, the evaporation section of the micro-heat tube array plate after absorbing the heat energy of the heat source is subjected to the heat tube effect, then the heat is discharged through the condensing section of the micro-heat tube array plate and then the heat is conducted to the cylindrical battery pack through the anomalous heat-conducting plate. The heat management system integrates a heat dissipation function and a heating function, guarantees uniform temperature of the cylindrical battery pack, is high in heat conduction efficiency, compact in volume and light in weight, and improves the heat exchange efficiency and effect.

Description

technical field [0001] The invention relates to the technical field of thermal management, in particular to a thermal management system and method using a micro heat pipe array plate for a cylindrical battery pack. Background technique [0002] As the future of the automobile industry, electric vehicles powered by on-board batteries (storage batteries / lithium batteries) have been valued and developed for their advantages of low pollution, energy saving, and high thermal efficiency. Electric vehicles use electric energy instead of conventional fossil fuels such as petroleum as power, which has obvious environmental protection advantages and is a long-term solution suitable for the field of future transportation tools. As the key technology of electric vehicle power, on-board battery will accumulate a lot of heat in the process of high-current charging and discharging. If the heat is not removed in time, the temperature of the battery will rise sharply, especially for large-ca...

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Problems solved by technology

[0003] The present invention aims at the problems of long heat dissipation time, low heat dissipation efficiency, poor heat dissipation effect, large system volume structure and inability to preheat the vehicle battery in cold regions or cold weather at the same time in the existing vehicle battery thermal management system, and provides a A thermal management system for cylindrical battery packs, which can realize the close contact between the special-shaped heat conduction plate and the cylindrical battery and the micro heat pipe array plate at the same time, which reduces the contact resistance and increases the heat exchange area, ensuring the safety of the vehicle-mounted cylindrical battery pack. The temperature is uniform, the thermal management system has high heat transfer efficiency, compact size and light weight, which improves the heat exchange efficiency and effect

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