Rotating Connector Reduces Diameter by Eliminating Center Pin

The patent removes the center pin structure entirely and replaces it with an insertion guide structure formed by the outer peripheral surfaces of the plug and socket bodies. This extraction of the unnecessary center pin component resolves the contradiction by eliminating the need for a large-diameter pin while maintaining connection reliability through the guide structure that prevents misalignment during insertion.

The outer peripheral surfaces of the plug and socket bodies serve multiple functions: they provide the main structural framework, guide alignment during insertion, and eliminate the need for a separate center pin. This multi-functionality allows the connector to maintain reliability without requiring the additional space that a large center pin would occupy.

The patent eliminates the erroneous insertion prevention key and spiral extending slope structures, replacing them with a simple insertion guide formed by the outer peripheral surfaces. This extraction of complex positioning mechanisms reduces device complexity while maintaining alignment accuracy through the straightforward guide structure that naturally directs proper insertion orientation.

Instead of using protruding keys and spiral slopes to enforce alignment, the patent uses recessed guide surfaces that passively guide the insertion process. This inverted approach simplifies the structure by eliminating the need for complex active positioning mechanisms while achieving the same alignment function through the geometry of the mating surfaces.

By removing the center pin structure entirely and using the outer peripheral surfaces as the alignment mechanism, the patent frees up the central space that would have been occupied by the pin. This allows for greater integration of connector pins in multi-core cable applications without the space constraints imposed by a large-diameter center pin.

The patent shifts the alignment function from a one-dimensional center pin structure to a two-dimensional outer peripheral surface interaction. This dimensional change allows the alignment function to be performed without occupying the central axis space, thereby enabling greater pin integration in the available radial and axial space.