Interval interactive microchannel liquid-cooled plate

Abstract

The invention relates an interval interactive microchannel liquid-cooled plate, which comprises an upper plate, a lower plate, a plate body and a liquid-cooled area. The upper plate, the low plate andthe plate body form a liquid-cooled area. The liquid-cooled area comprises a plurality of microchannel partitions. The microchannel partitions divide the liquid-cooled area into several microchannels, which are divided into two interactive groups. A coolant flows in the two groups of microchannels in reverse directions. According to the invention, the interval interactive microchannel liquid-cooled plate is adopted. Compared with a common parallel microchannel liquid-cooled plate, the microchannel liquid-cooled plate has the following beneficial effects: the uniformity of the coolant temperature is greatly improved, the temperature of a battery pack module is greatly stabilized, and the temperature difference of each battery unit in the battery pack is reduced, so that the battery pack works in a stable temperature environment, and the work efficiency of the battery pack and battery cycle life are guaranteed.

Description

technical field [0001] The invention relates to the field of liquid cooling plates in thermal management of power batteries, in particular to a spaced interactive microchannel liquid cooling plate. Background technique [0002] The current new energy vehicles mainly include hybrid, pure electric and fuel cell electric vehicles. Compared with traditional internal combustion engine vehicles, they have the advantages of simpler structure and better driving comfort. Zero emissions can be achieved, and even hybrid vehicles have advantages in terms of emissions. However, whether it is a fuel cell or a lithium-ion battery, it will release corresponding heat during continuous discharge, and high-temperature operation will reduce their performance, and even affect the safety of electric vehicles in severe cases. Therefore, it is extremely important to manage their heat . In order to ensure that the module works safely and efficiently in a suitable temperature range, it is generally...

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Problems solved by technology

[0004] However, when the cooling liquid flows through the liquid cold plate, as the heat is generated during the battery discharge process, the heat at the inlet is quickly taken away, so that the temperature of the cooling liquid continues to rise, so in the flow direction of the cooling liquid, the cooling The temperature difference between the liquid and the battery is getting smaller and smaller, and the cooling effect is obviously reduced. Such a heat exchange method makes the temperature difference between the front and rear of the battery module too large, resulting in a decrease in the battery cycle life, a decrease in efficiency, and even thermal runaway.

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