A thermal management device embedded in a square battery module

Abstract

The invention relates to the technical field of new energy, and particularly relates to an embedded heat management device for a square battery module. The embedded heat management device for the square battery module comprises a module shell and partition plates arranged on the module shell, wherein the module shell is internally provided with a main flow channel, each partition plate is internally provided with a side flow channel communicated with the main flow channel, water cooling cavities used for placing single batteries are formed between the partition plates and the module shell, oneside of the module shell is provided with a liquid inlet pipe communicated with the main flow channel, the other side of the module shell is provided with a liquid outlet pipe communicated with the main flow channel, the bottom surface of the main flow channel is provided with buffering and flow guiding devices at the positions corresponding to the side flow channels, each buffering and flow guiding device includes a flow guiding plate, the flow guiding plate is provided with a reset spring at the side away from the liquid inlet pipe, and the bottom end of the flow guiding plate is rotatablyconnected to the module shell. The embedded heat management device can increase the heat dissipation area of batteries, improve the heat dissipation efficiency of the batteries and improve the integration degree of the module assembly.

Description

technical field [0001] The invention relates to the field of new energy technology, in particular to a heat management device embedded in a square battery module. Background technique [0002] Power batteries are the energy source of electric vehicles, and the suitable operating temperature range of lithium-ion batteries is 20°C~40°C. During the working process of lithium batteries, due to the existence of internal resistance and other factors, a large amount of heat will inevitably be generated. If effective cooling is not carried out, the battery temperature will rise. In order to ensure that the battery is maintained within this temperature range under any working conditions, it is necessary to add a thermal management system in the battery pack to effectively cool the battery. In addition, due to reasons such as the spatial arrangement of the battery and the flow direction of the cooling system, the temperature of the battery is not uniform, which in turn affects the co...

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Problems solved by technology

[0006] The present invention is mainly aimed at the liquid cooling solution in the prior art through partial heat dissipation at the bottom, the heat dissipation area of ​​the battery is too small, which limits the heat dissipation efficiency of the battery, and there are too many structural parts in the module, which is not conducive to installation, and the weight of the module is relatively heavy , the problem of low integration, providing a thermal management device embedded in a square battery module that can increase the battery heat dissipation area, improve the battery heat dissipation efficiency, improve the integration of the module assembly, and realize the lightweight of the module

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