POWER BATTERY SUPPORT FRAME STRUCTURE DESIGN AND ANALYSIS OF HEAT DISSIPATION PERFORMANCE

Wang Bo; Hu Bing; Wang Xiaojuan

doi:10.19912/j.0254-0096.tynxb.2022-0261

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (5) : 454-460. DOI: 10.19912/j.0254-0096.tynxb.2022-0261

POWER BATTERY SUPPORT FRAME STRUCTURE DESIGN AND ANALYSIS OF HEAT DISSIPATION PERFORMANCE

Wang Bo¹, Hu Bing¹, Wang Xiaojuan²

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Abstract

Renewable energy development is bound to lead to the development of power battery, retired electric vehicle battery recycling promotion will also made great achievements, in the process of power battery development, its security is the key problem worthy of attention, in order to improve power lithium battery discharge when the cooling efficiency, the design of the battery racks, The thermal performance of 18650 type lithium battery with different support frame structure, different working medium and different flow rate was studied by computer simulation. The results show that the maximum temperature on the surface of battery pack and support frame decreases with the increase of working fluid flow rate, and tends to be stable when the working fluid flow rate is more than 10 m/s. The proper position of working medium inlet can enhance the cooling effect. Under the condition of low flow rate, when air and water are used as cooling medium respectively, the surface temperature of longitudinal wrapped battery support frame is 2.64% and 1.86% lower than that of transverse wrapped battery support frame battery pack. At high flow rate, when air and water were used as cooling medium, the surface temperature of the longitudinal wrapped battery support frame was 3.15% and 1.83% lower than that of the transverse wrapped battery support frame. The structure design of power battery support frame can provide theoretical reference for subsequent battery thermal control.

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new energy vehicles / power battery / thermal control / mechanism design / computer simulation

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Wang Bo, Hu Bing, Wang Xiaojuan. POWER BATTERY SUPPORT FRAME STRUCTURE DESIGN AND ANALYSIS OF HEAT DISSIPATION PERFORMANCE[J]. Acta Energiae Solaris Sinica. 2022, 43(5): 454-460 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0261

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