it is mainly composed of signal acquisition components (FPC, PCB, FFC, etc.), plastic/metal structural parts,integrated copper and aluminum bars, etc.. it replaces the traditional wire harness connection and is connected into a whole through processes such as heat pressing or riveting to achieve electrical The core high-voltage series and parallel connection, as well as the battery temperature sampling and cell voltage sampling functions. provide temperature and voltage to the BMS system through FPC/PCB and connector components, it is also a part of the BMS system