This utility model discloses a battery top cover
assembly. The top cover body has a terminal post with a boss formed on it. A connecting strip matching the boss is installed on the terminal post, and a connecting hole matching the boss is formed on the connecting strip. A first gap for
welding is formed between the outer wall of the boss and the connecting hole. The
diameter of the connecting hole is a first
diameter, and the
diameter of the boss is a second diameter. The first diameter is smaller than the second diameter, and the second diameter is equal to the first diameter + 0 to 0.1 mm. The height of the boss is equal to the thickness of the connecting strip. Compared with the prior art, this utility model's battery top cover
assembly completes the
welding of the terminal post and connecting strip using low-power
welding. This not only reduces welding costs but also improves welding quality, reduces welding difficulty, facilitates the compact structure and
weight control of the battery top cover
assembly, optimizes the overall design of the
battery pack, and is more suitable for industrial production applications.