Power battery thermal management system based on combination of two-stage heat pipe and vehicle body
A heat management system and power battery technology, applied in the direction of secondary batteries, circuits, electrical components, etc., to achieve the effect of easy maintenance, shortened heat exchange distance, simple and compact
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Embodiment 1
[0026] As shown in the figure, a power battery thermal management system based on the combination of two-stage heat pipes and the body includes several power battery cells 101, a three-dimensional ultra-thin heat pipe group 102 and a body heat pipe 103; the three-dimensional ultra-thin heat pipe group 102 is arranged on the body The bottom is composed of several ultra-thin evaporation plates 106 and a condenser 105; in order to enhance the detachability of the three-dimensional ultra-thin heat pipe group 102, the bottom surface 202 of the condenser 105 contains a tapered interface 201; the flexible joint of the ultra-thin evaporation plate 106 307 is connected to the tapered interface 201 through a sealing ring 305 and a self-carding collar 306; the condenser 105 contains a gas-liquid splitter plate 104, and the gas-liquid splitter plate 104 separates the three-dimensional ultra-thin heat pipe group 102 into several parallel Complete circuit; the two surfaces of the power batte...
Embodiment 2
[0031] In this embodiment, the evaporation chamber inside the ultra-thin evaporation plate 106 contains a micro-channel 501 structure with a hydraulic diameter stepwise change, and the diameter of the micro-channel 501 gradually decreases in the direction away from the return channel 301, and other implementation methods are the same as in the first embodiment. .
Embodiment 3
[0033] In this embodiment, the evaporation cavity inside the ultra-thin evaporation plate 106 contains a gradient porous structure 601 , and the average diameter of the pores gradually decreases in the direction away from the return channel 301 , and other implementation methods are the same as in the first embodiment.
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