Inclined Piercing Connection Terminal for Flexible Substrates

The piercing part is designed to extend in a direction inclined at an angle θ (0° < θ ≤ 90°) relative to the normal direction of the flat cable, rather than strictly perpendicular. This angular deviation allows the fractured extension part to be pressed deeper into the slot while maintaining structural simplicity, thereby increasing the effective connection length without significantly complicating the overall design.

The inclination angle θ of the piercing part is introduced as a variable parameter to optimize the connection. By adjusting this angle, the length of the fractured extension part pressed into the slot can be controlled and maximized, transforming a fixed geometric constraint into an adjustable parameter that enhances connection reliability.

By changing the insertion direction from perpendicular to inclined at angle θ, the piercing part achieves greater insertion depth into the slot while maintaining ease of operation. The inclined path naturally guides the piercing part deeper into the slot during the same insertion motion, improving electrical connection reliability without requiring additional operational steps.

The piercing part is pre-configured with the inclined angle θ before insertion, so that the improved insertion depth is achieved automatically during the normal insertion operation. This preliminary geometric configuration ensures that the fractured extension part is pressed sufficiently deep into the slot without requiring separate actions or adjustments during the connection process.