Battery Pack Bus Bar Alignment for Lower Joule Heating

The patent merges the bus bar and connection member into a unified conductive structure with a large contact area. The connection member is integrally formed with the bus bar, eliminating separate components and creating an extended conductive path that increases the effective conductive area between connection points, thereby reducing electrical resistance and Joule heating while maintaining structural simplicity.

The patent transitions from a point-to-point connection (zero-dimensional contact) to a distributed areal connection (two-dimensional contact). The connection member spreads the electrical connection across a large surface area of the bus bar, transforming the contact geometry from linear to planar, which significantly reduces current density and associated Joule heating effects.

The position alignment guides are pre-formed as integral features of the bus bar and connection member structure. The guides protrude from the bus bar surface at predetermined locations, establishing the correct spatial relationship between components before assembly. This preliminary positioning ensures uniform contact resistance is achieved automatically during assembly without requiring additional adjustment steps or complex alignment mechanisms.

The position alignment guides enable the assembly process to be self-aligning. When the connection member is inserted, the guides automatically guide it into the correct position, ensuring uniform contact resistance without requiring external alignment tools or complex adjustment mechanisms. The structure serves its own alignment function, simplifying the overall device complexity.