Battery Cap Plate Contact Structure for Stable Terminal Conduction

The patent applies local quality by transitioning from a continuous contact line to discrete localized contact points through protrusions on the electrical connection member. These protrusions create specific localized contact areas with the cap plate, ensuring consistent contact area distribution regardless of manufacturing tolerances. The localized contacts provide reliable electrical conduction while reducing variability in contact area, directly resolving the contradiction between conduction consistency and manufacturing precision control.

The patent changes the geometric parameters of the electrical connection member by introducing protrusions with specific dimensions and distributions. These parameter changes create a structure that is less sensitive to manufacturing tolerances, allowing for easier assembly while maintaining consistent contact area distribution. The protrusions ensure reliable electrical connection without increasing short-circuit risk, even when manufacturing tolerances are relaxed.

The patent segments the continuous contact line into multiple discrete contact points through the protrusions on the electrical connection member. This segmentation allows for controlled contact area distribution where each protrusion creates a defined contact point with the cap plate. The segmented structure maintains stable electrical conduction while reducing variability in contact area distribution, as each protrusion's contact area can be precisely controlled during manufacturing.