Slip ring for high speed data transmission

摘要

The current invention is regarding a slip ring for transmitting high speed electrical signal across a rotating interface, especially for transmitting Ethernet data. It consists of sandwich assembly with multiple conducting plates individually sandwiched by multiple insulating spacers and a brush block assembly with multiple conducting brushes. The input Ethernet cable is attached on said sandwich assembly and the wires from input cable can be individually soldered into the central hole of each conducting plate (The wires are always off-centered in prior art). The output Ethernet cable is soldered on said brush block. Said brush block assembly and said sandwich assembly are rotatable relative to each other through bearings to form a rotational interface. As a result, high speed electrical signal can be transmitted across the rotating interface without suffering from phase shift and data distortion as in prior arts due to unequal path lengths.

主权项

1. A slip ring for transmitting high speed electrical signal across a rotating interface consisting of:
a sandwich assembly with multiple sandwich items and an common geometrical axis; said sandwich item containing two spacer plates, made of insulating material, with at least one conducting plate, made of conducting material, between them; said sandwich assembly further including two bobbins, made of insulating material; at least one brush block, made of insulating material; said brush block containing multiple conducting brushes, or brush bundles, made of conducting material, capable of conducting electrical current; a couple of bearings; an input Ethernet cable, or other twisted pair cables with multiple conducting wires; an output Ethernet cable, or other twisted pair cables with multiple conducting wires.