Axial compression electrical connector for annular corrugated coaxial cable
View Patent ↗An electrical connector having a longitudinal axis with interface and cable ends for coaxial cable having an annular corrugated solid outer conductor. The connector having a body and an interface joined in an interference fit along the longitudinal axis of the connector. A spring finger ring within a bore of the body is rigidly connected to the body. The spring finger ring having a plurality of spring fingers extending towards an connector end; the spring fingers having an inward projecting bead at the connector end. The spring fingers positioned opposite an outer conductor groove open to the cable end, the outer conductor groove proximate the cable end of the interface.
1. An electrical connector, having a longitudinal axis with an connector end and a cable end, for annular corrugated solid outer conductor coaxial cable, comprising:
a body and an interface joined in an interference fit along the longitudinal axis of the connector;
a spring finger ring within a bore of the body, rigidly connected to the body;
the spring finger ring having a plurality of spring fingers extending towards the connector end;
the spring fingers having an inward projecting bead at the connector end; and
a flare ring within the bore having a retaining lip and a flare seat forming an outer conductor groove open to the cable end, the flare ring abutting the cable end of the interface.
2. The connector of claim 1 , wherein the flare ring is retained abutting the cable end of the interface by a preliminary interference fit against the bore of the body.
3. The connector of claim 1 , further including a center pin coaxially supported within a bore of the interface by an insulator, the center pin having a spring basket at the cable end.
4. The connector of claim 1 , further including an interface gasket groove in the bore of the body, between the interference fit of the body and the interface.
5. The connector of claim 1 , further including a coupling nut rotatably retained upon an outer diameter of the interface by a retention shoulder at the connector end and by the body at the cable end.
6. The connector of claim 5 , wherein the coupling nut is formed from a metallic coupling nut inner portion and a polymeric coupling nut overmolding covering an outer diameter, the cable end and the connector end.
7. The connector of claim 1 , wherein the body is formed from a metallic body inner portion and a polymeric body overmolding covering an outer diameter, the cable end and the connector end.
8. The connector of claim 7 , wherein the body overmolding extends from the cable end of the body along the longitudinal axis, the bore continuing through the overmolding having a guide surface with an increasing inner diameter towards the cable end.
9. An electrical connector, having a longitudinal axis with an connector end and a cable end, for annular corrugated solid outer conductor coaxial cable, comprising:
a body and an interface joined in an interference fit along the longitudinal axis of the connector;
a spring finger ring within a bore of the body, rigidly connected to the body;
the spring finger ring having a plurality of spring fingers extending towards the connector end;
the spring fingers having an inward projecting bead at the connector end; and
a retaining lip and a flare seat forming an outer conductor groove open to the cable end;
the outer conductor groove proximate the cable end of the interface.
10. The connector of claim 9 , wherein via application of an axial compression force between the cable end and the connector end along the longitudinal axis, the body and the interface are movable along the interference fit to clamp a leading edge of the solid outer conductor between the spring fingers and the outer conductor groove.
11. The connector of claim 9 , wherein the body has a metallic body inner portion with a bore and a polymeric body overmolding covering an outer diameter of the body inner portion; the body overmolding extending from the cable end of the body along the longitudinal axis, the bore extending from the body through the body overmolding and having a guide surface with an increasing inner diameter towards the cable end.
12. The connector of claim 9 , wherein the outer conductor groove is formed in a flare ring adjacent to the cable end of the interface.
13. The connector of claim 9 , wherein the outer conductor groove is formed in a flare ring adjacent to the cable end of the interface; the flare ring having a preliminary interference fit against the bore.
14. The connector of claim 9 , wherein the cable is insertable within the bore from the cable end;
the spring fingers deflectable to allow passage of a leading edge of the solid outer conductor past the inward projecting bead(s).
15. The connector of claim 9 , further including a center pin coaxially supported within a bore of the interface by an insulator, the center pin having a spring basket at the cable end.
16. The connector of claim 9 , wherein the rigid connection between the spring finger ring and the body is via an interference fit.
17. The connector of claim 9 , further including an interface gasket groove formed in the bore of the body between the cable end and the connector end of the interference fit.
18. The connector of claim 9 , further including a coupling nut rotatably retained upon an outer diameter of the interface by a retention shoulder at the connector end and the connector end of the body.
19. The connector of claim 18 , wherein a maximum outer diameter of the body is less than a maximum outer diameter of the coupling nut.
20. An electrical connector, having a longitudinal axis with an connector end and a cable end, for annular corrugated solid outer conductor coaxial cable, comprising:
a body having a metallic body inner portion with a bore and a polymeric body overmolding covering an outer diameter, the cable end and the connector end of the body inner portion;
the body overmolding extending from the cable end of the body along the longitudinal axis, the bore extending from the body through the body overmolding having a guide surface with an increasing inner diameter towards the cable end;
an interface joined in an interference fit with the body along the longitudinal axis of the connector;
a coupling nut rotatably retained upon an outer diameter of the interface by a retention shoulder at the connector end and by the body at the cable end;
the coupling nut having a metallic coupling nut inner portion and a polymeric coupling nut overmolding covering an outer diameter of the coupling nut inner portion, the cable end and the connector end of the coupling nut inner portion;
a spring finger ring within the bore of the body, rigidly connected to the body;
the spring finger ring having a plurality of spring fingers extending towards an connector end;
the spring fingers having an inward projecting bead at the connector end; and
a flare ring within the bore having a retaining lip and a flare seat forming an outer conductor groove open to the cable end, the flare ring abutting the cable end of the interface, retained by a preliminary interference fit against the bore of the body.