Lithium battery thermal management control device

Abstract

The invention discloses a lithium battery thermal management control device which comprises a first lithium battery assembly shell assembly and a second lithium battery assembly shell assembly, and the structure of the second lithium battery assembly shell assembly is consistent with that of the first lithium battery assembly shell assembly. A lithium battery thermal management assembly shell structure is formed between the first lithium battery assembly shell assembly and the second lithium battery assembly shell assembly, and when multiple groups of lithium batteries are assembled side by side, the multiple groups of lithium battery thermal management assembly shell structures are fixedly connected side by side. Through a tension spring, the first lithium battery assembly shell assemblyand the second lithium battery assembly shell assembly are of the shell folding and clamping structure with the variable interval, and the stability and reliability of interval adjustment between thefirst lithium battery assembly shell assembly and the second lithium battery assembly shell assembly are ensured through the X-shaped guide telescopic plate. When the plurality of battery monomers areintegrated to battery groups, the plurality of battery monomers are folded and clamped in the plurality of groups of lithium battery thermal management assembly shell structures, so that the integration of the plurality of battery monomers is realized.

Description

technical field [0001] The invention belongs to the technical field of lithium batteries, and in particular relates to a thermal management control device for lithium batteries. Background technique [0002] The battery pack of an electric vehicle is composed of multiple single batteries. However, there are certain differences between the single batteries. As the usage time increases and the number of charge and discharge increases, the differences between the single batteries will become more and more Big. [0003] The existing technology has the following problems: According to the power demand of the vehicle, multiple battery cells need to be integrated into a battery pack, and the batteries with poor performance in the single cells will become more prominent, thereby affecting the performance of the entire battery pack. Single batteries with seriously backward performance need to be replaced in time to ensure that the entire battery pack can be used normally. At the sam...

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Problems solved by technology

[0003] The existing technology has the following problems: According to the power demand of the vehicle, multiple battery cells need to be integrated into a battery pack, and the batteries with poor performance in the single cells will become more prominent, thereby affecting the performance of the entire battery pack. Single batteries with seriously backward performance need to be replaced in time to ensure that the entire battery pack can be used normally. At the same time, the temperature of the entire battery pack will rise after a single lithium battery heats up, which will affect the performance of other lithium batteries. The battery cells are integrated into the installation structure of the battery pack, and the independent heat dissipation structure that facilitates the thermal management of multiple battery cells is not conducive to the integration of multiple battery cells

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