| 摘要 |
A cap assembly comprises: a base plate mounted to an open upper end of a battery case; a protection circuit module (PCM) mounted on the base plate; and a top cap coupled to the upper end of the battery case while the top cap covers the PCM, the top cap being made of an insulative material. The electrical connection and the mechanical coupling between the PCM and the base plate are accomplished by one or more forced-inserting type rivets. The PCM has two through-holes (a, b) connected to a cathode and an anode of a battery, respectively, and the base plate is provided with a coupling member and a through-hole (c) corresponding to the through-holes of the PCM, respectively. While the PCM is positioned on the base plate, the coupling member is inserted through the through-hole (a), two rivets are inserted through the through-holes so as to accomplish the electrical connection and mechanical coupling between the PCM and the base plate, and the first rivet is inserted through the through-hole (c) of the base plate and an opening of a conductive plate connected to an anode of the battery cell, and the second rivet is coupled to the upper end of the first rivet through the through-hole (b) of the PCM. |
