Connector and coaxial cable with outer conductor cylindrical section axial compression connection
A connector and coaxial cable interconnectable via axial compression upon a cylindrical section of a solid outer conductor of the cable. The cylindrical section may be formed in the cable by drawing a cable end into an interference fit between a sleeve and an outer conductor seat formed in the connector body. Alternatively, the cylindrical section may be formed in the outer conductor during cable manufacture and the cylindrical section retained between the outer conductor seat and a crimp ring radially deformed by an angled die face during axial compression. To increase flexibility of a straight walled cable, annular corrugations may be formed in the solid outer conductor with the cylindrical sections at each corrugation peak. The cylindrical section having a length of at least 3 millimeters or 4 times the corrugation depth.
1. An electrical connector for a coaxial cable with a solid outer conductor, comprising:
a connector body with a cylindrical outer conductor seat; and
a deformable crimp ring;
the outer conductor seat and the crimp ring adapted to receive a cylindrical section of the solid outer conductor between the outer conductor seat and the crimp ring and to retain the cylindrical section between the outer conductor seat and the crimp ring upon application of a compression force applied along a longitudinal axis of the coaxial cable between the connector body and the crimp ring.
2. The connector of claim 1 , further including a connector body bore; the connector body bore coaxial with the outer conductor seat.
3. The connector of claim 2 , further including a center contact positioned coaxially within the connector body bore.
4. The connector of claim 3 , wherein the center contact retained by an insulator.
5. The connector of claim 4 , wherein the insulator is formed by injection molding injected through at least one opening formed in the connector body.
6. The connector of claim 3 , wherein the connector body and center contact are adapted to one of a BNC, Type N and DIN configuration.
7. A connector in combination with a coaxial cable having a solid outer conductor, comprising:
a connector body with an outer conductor seat; and
a deformable crimp ring;
an end portion of the outer conductor of the coaxial cable retained between the outer conductor seat and the deformable crimp ring upon application of a compression force applied along a longitudinal axis of the coaxial cable between the connector body and the crimp ring.
8. The combination of claim 7 , wherein the solid outer conductor has annular corrugations; the annular corrugations having a cylindrical section at a peak of each corrugation.
9. The combination of claim 7 , wherein the cylindrical section has a length, along a longitudinal axis of the coaxial cable, at least four times a depth of the corrugations.
10. The combination of claim 7 , wherein the cylindrical section has a length, along a longitudinal axis of the coaxial cable, at least ten times a depth of the corrugations.
11. The combination of claim 7 , wherein the cylindrical section has a length, along a longitudinal axis of the coaxial cable, of at least 3 millimeters.
12. The combination of claim 7 , wherein the crimp ring and the solid outer conductor are formed from material(s) having a substantially equal thermal expansion coefficient.
13. The combination of claim 7 , further including a bore in the connector body coaxial with the outer conductor seat; and
a center contact retained in the bore by an insulator.
14. The combination of claim 13 , wherein the insulator is an injection molded plastic; the plastic injected via at least one opening through the connector body to the bore.
15. A method for attaching a connector body to a coaxial cable having a solid outer conductor, comprising the steps of:
placing a crimp ring over an end the solid outer conductor;
inserting a cylindrical section of the solid outer conductor over a conductor seat of the connector body;
applying axial compression between the connector body and the crimp ring to deform the crimp ring over the cylindrical section of the solid outer conductor and the conductor seat, thereby retaining the cylindrical section between the crimp ring and the conductor seat.
16. The method of claim 15 , wherein the axial compression between the connector body and the crimp ring is applied upon a 360 degree periphery of the crimp ring.
17. The method of claim 15 , wherein the axial compression applied to the crimp ring is via a die surface angled towards the coaxial cable.
18. The method of claim 15 , wherein to apply the axial compression, the connector body is positioned in a nest; and a segmented die applied to the crimp ring is held by a host die.
19. A coaxial cable, comprising:
a cylindrical solid outer conductor surrounding an inner conductor isolated from the solid outer conductor by a dielectric;
the solid outer conductor having annular corrugations with a cylindrical section at each corrugation peak;
the cylindrical section having a length, along a longitudinal axis of the coaxial cable, at least ten times a depth of the corrugations.
20. The cable of claim 19 , wherein the cylindrical section has a length, along a longitudinal axis of the coaxial cable, of at least 3 millimeters.
21. The cable of claim 19 , wherein the solid outer conductor is one of copper and copper alloy.