Friction weld coaxial connector
View Patent ↗A coaxial connector for interconnection with a coaxial cable with a solid outer conductor by friction welding is provided with a monolithic connector body with a bore. A sidewall of the bore is provided with an inward annular projection angled toward a cable end of the bore. A sidewall of the inward annular projection and the sidewall of the bore form an annular friction groove open to a cable end of the bore. The annular friction groove is dimensioned with a taper at a connector end of the friction groove less than a thickness of a leading end of the outer conductor. The taper provides an annular material chamber between the leading end of the outer conductor, when seated in the friction groove, and the connector end of the friction groove.
1. A coaxial connector for interconnection with a coaxial cable with a solid outer conductor, comprising:
a monolithic connector body with a bore with an inner diameter proximate an outer diameter of the outer conductor;
a sidewall of the bore provided with an inward annular shoulder angled toward a cable end of the bore; a sidewall of the inward annular shoulder and the sidewall of the bore forming an annular friction groove open to a the cable end of the bore; the annular friction groove dimensioned with a taper at a connector end of the friction groove less than a thickness of a leading end of the outer conductor; the taper providing an annular material chamber between the leading end of the outer conductor, when seated in the friction groove, and the connector end of the friction groove.
2. The connector of claim 1 , wherein the inward annular shoulder is located proximate a connector end of the bore.
3. The connector of claim 1 , wherein a diameter of the bore proximate the inward annular shoulder decreases to an interference fit with an outer diameter of the outer conductor.
4. The connector of claim 1 , further including an overbody of polymeric material on an outer diameter of the connector body.
5. The connector of claim 4 , wherein the overbody includes an alignment cylinder of a connector interface at a connector end of the connector.
6. The connector of claim 4 , wherein the overbody includes a plurality of longitudinal support ridges extending from an outer diameter of the overbody to less than an inner diameter of a coupling nut dimensioned to seat upon the support ridges.
7. The connector of claim 6 , wherein the coupling nut is retained on the support ridges between a flange of the overbody and an outward extending retention spur proximate a cable end of at least one of the support ridges.
8. The connector of claim 4 , wherein the overbody extends from the cable end of the connector body, an inner diameter of the overbody extending from the cable end of the connector body provided as a friction surface with an interference fit upon an outer diameter of a jacket of the coaxial cable.
9. The connector of claim 8 , wherein the friction surface is provided as a series of spaced apart annular peaks of a contour pattern of the inner diameter of the overbody.
10. The connector of claim 4 , further including a rotational interlock between the overbody and the connector body.
11. The connector of claim 10 , wherein the rotational interlock is a plurality of interlock apertures provided in a connector body flange protruding from the outer diameter of the connector body.