With the development of the new energy vehicle industry,low-cost and high-reliability battery modules have become the pursuit of everyone.This article starts from the printed circuit board(PCB)of new energy vehicle battery modules,takes the temperature rise of the circuit as the starting point,and combines dimensions such as PCB circuit current carrying capacity,heat dissipation,and material characteristics.Through theoretical calculation,simulation,and actual measurement,the design scheme of PCB circuit fuses under different conditions is analyzed,the feasibility of existing fuse packaging schemes is explored,and a practical and feasible PCB circuit fuse scheme is developed.The relevant research results can not only significantly improve the reliability and maintainability of battery modules,but also reduce the cost of the entire module.
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