| 摘要 |
PURPOSE: A protection circuit board is provided to improve the performance of a secondary protection circuit, to reduce the total size of the battery pack and to avoid an insulating structure of a secondary protection device and a secondary battery. CONSTITUTION: A protection circuit board(100) includes a board body(110) and a secondary protection element(120) built in the board body. A hole(111) is formed in the center of the board body. Outer terminals(112) for transferring current to the outside are mounted. A charge/discharge element(113) is mounted on the other side. The board body comprises 2 layered or 4 layered circuit layers. |
