Battery Pack

A battery pack may include a battery cell with a cell lead; a bus bar bonded to the cell lead and having a terminal pin; a connection board having the bus bar mounted thereon; and a printed circuit board (PCB). The PCB may have a terminal clip selectively connected to and disconnected from the terminal pin of the bus bar. The battery pack may also include a PCB housing defining a PCB accommodation space accommodating the PCB. The battery pack may further include a locking part that, in a first locking state, locks the PCB housing to the connection board at a first position where the terminal pin of the bus bar does not elastically deform the terminal clip of the PCB; and in a second locking state, lock the PCB housing to the connection board at a second position where the terminal pin elastically deforms the terminal clip. 本发明的电池组包括：电池单元，包括电池引线；母线，与上述电池引线接合，形成有管脚；连接板，安装有上述母线；印刷电路板，设置有与上述管脚相连接或分离的管脚夹；印刷电路板外罩，形成有用于收容上述印刷电路板的印刷电路板收容空间；以及锁定部，在上述管脚不使上述管脚夹弹性变形的第位置将上述印刷电路板外罩锁定在上述连接板上，在上述管脚使上述管脚夹弹性变形的第二位置将上述印刷电路板外罩锁定