Wireless slip ring assembly

Details Wireless slip ring assembly Wireless slip ring assembly

1988-10-11

1989-09-26

Wong, Peter S.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 71, 310239, 310DIG6, 439 13, H02K 326, H02K 350, H01R 3908

Patent

active

048703117

ABSTRACT:
A wireless slip ring assembly includes inner and outer subassemblies mounted together for undergoing rotation relative to one another. The inner subassembly includes a sleeve composed of axially spaced annular slip rings and a printed circuitboard mounted within the sleeve having spaced longitudinal sides connected at longitudinal edges and spaced conductive paths defined on the longitudinal sides and extending to the edges. The conductive paths are spaced from interior sides of the slip rings except at the longitudinal edges of the circuitboard, where each conductive path is electrically and rigidly connected to one slip ring. The outer subassembly includes a brush cylinder rotatably mounted to the inner subassembly sleeve and having apertures therethrough aligned with the slip rings, a flexible circuit attached on the brush cylinder exterior and having spaced conductive leads with locations aligned with the brush cylinder apertures, and contact brushes electrically and rigidly connected to the conductive lead locations and having end portions extending through the apertures and making electrical sliding contact with the slip rings as the inner and outer subassemblies undergo relative rotation.

REFERENCES:
patent: 3042998 (1962-07-01), Sweett et al.
patent: 3448312 (1969-06-01), Mashburn
patent: 4689023 (1987-08-01), Strong III et al.
patent: 4779469 (1988-10-01), Ashley
patent: 4806808 (1989-02-01), Grecksch et al.

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