Battery thermal management device and battery box

Abstract

The embodiment of the invention provides a battery thermal management device and a battery box. The battery thermal management device comprises a water chamber and at least one group of heat conduction devices, wherein the heat conduction devices are arranged on the water chamber, and each heat conduction device comprises a first heat conduction plate, a second heat conduction plate, a first battery frame and a second battery frame. Heat exchange with a rechargeable battery can be performed by the heat conduction plates; since the heat conduction plates are in plate shapes, the battery thermal management device can be in large-area contact with a side surface of the rechargeable battery, so that heat exchange can be fully performed, and a temperature control effect of the rechargeable battery is ensured; a passage is formed by the two heat conduction plates, and thus, a liquid passes through the passage; the liquid directly flows through the heat conduction plates, and thus, heat is more rapidly transmitted; and meanwhile, no pipeline is arranged in the battery thermal management device, the battery thermal management device is simple in structure and is convenient to install.

Description

technical field [0001] The invention relates to the technical field of temperature control, in particular to a battery thermal management device and a battery box. Background technique [0002] With the development of science and technology, rechargeable batteries such as lithium batteries have also been applied to many fields such as automobiles. [0003] Rechargeable batteries generate heat during charging and discharging. If the heat is not dissipated in time, it will cause heat accumulation, which may lead to thermal runaway and the risk of combustion and explosion. On the other hand, in low-temperature environments such as winter, the capacity of rechargeable batteries drops significantly. [0004] How to control the temperature of the rechargeable battery to keep it in a suitable range is still an urgent problem to be solved in this field. Contents of the invention [0005] The purpose of the embodiments of the present invention is to provide a battery heat managem...

AI Technical Summary

Problems solved by technology

[0003] Rechargeable batteries will generate heat during charging and discharging. If the heat is not dissipated in time, it will cause heat accumulation, which may lead to thermal runaway and the risk of combustion and explosion.

On the other hand, in low temperature environments such as winter, the capacity of rechargeable batteries will drop greatly.

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