FPC connectors typically consist of the following key components:
Contact terminal (contact piece): Conductive core, usually made of phosphor bronze or beryllium copper, with gold or tin plating on the surface to improve conductivity and corrosion resistance.
Insulator (base/core): commonly used high-temperature resistant materials such as LCP (liquid crystal polymer) or PA (nylon), used to fix terminals and provide electrical isolation. In plug-in connectors, the rubber core and tongue form the main structure.
Shell and locking mechanism: The shell protects the internal structure, and some models come with a metal shielding layer. The locking mechanism (such as flip cover, slide cover, buckle or ZIF design) is used to ensure the physical fixation of the FPC after insertion. For example, a flip type connector is equipped with a movable cover, which, when closed, presses the FPC gold finger towards the terminal through an internal mechanical structure. The insulation body and metal cover plate structure described in the patent also belong to this category.
Other auxiliary structures: including positioning pins (to ensure alignment), soldering pads (for PCB fixation), etc.