Research on heat management system of bionic fish bone flow
In order to solve the problem of high temperature as well as large temperature difference of power battery under high discharge multiplication rate,a bionic fish bone channel was proposed and a liquid cooling heat dissipation model was established.The cooling performance of the herringbone and parallel runners was studied and compared at a high temperature of 40 ℃ and a battery discharge multiplication of 3C.The results show that the fishbone channel has a better cooling performance.Under this structure,the maximum temperature as well as the temperature difference of six representative single cells were analyzed,and the effects of the flow rate of the coolant,the flow arrangement of the cooling runners on the temperature as well as the temperature difference of the battery pack were also investigated.The results show that when the coolant flow rate is 0.02 m/s,the maximum temperature of the battery pack at the end of discharge is 27.8 ℃,the temperature difference of the battery pack is at 2.2 ℃,and the cooling pressure drop is 1.5 Pa.The battery pack of scheme with the cross-flow arrangement of the coolant has a better temperature homogeneity.
battery thermal managementbionic fish bone channelflow path layout
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