Coaxial connector and method

• US 20080003873A1
• Filed: 06/29/2006
• Published: 01/03/2008
• Est. Priority Date: 06/29/2006
• Status: Active Grant

• Current Assignee: Corning Optical Communications RF, LLC (Corning Incorporated)
• Original Assignee: Corning Incorporated
• Inventors: Henningsen, Jimmy
• Granted Patent: US 7,465,190 B2
• Time in Patent Office: Days
• US Class Current: 439/578
• CPC Class Codes: H01R 13/025 formed by the conductors of a cable end
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/40 specially adapted for high frequency
• CPC Class Codes: H01R 9/0521 Connection to outer conductor by action of a nut

Abstract

Coaxial connectors for coaxial cable and methods for connecting coaxial connectors to a coaxial cable include: a sleeve for allowing passage of a prepared end of a coaxial cable therethrough having at least a first contact surface, a terminal including a second contact surface, an insulator disposed therein for receiving a center conductor of a coaxial cable and a nut for receiving the sleeve, the nut being axially displaceable along at least a portion of the sleeve. The first and second contact surfaces form a clamping region for capturing the outer conductor of a coaxial cable. The coaxial connector does not include a center conductor. An insulator is disposed in the terminal to receive the inner conductor of a coaxial cable for direct connection to a junction box, amplifier, or other coaxial port.

Claims

1. A coaxial connector for attachment to a coaxial cable having an outer conductor and an inner conductor, the outer conductor of the coaxial cable having an outer diameter, the coaxial connector comprising:

a sleeve having front and back opposing ends and a bore extending therethrough for allowing passage of the coaxial cable therethrough, at least a portion of the bore having an inner diameter commensurate with the outer diameter of the outer conductor of the coaxial cable, and at least a first contact surface located between said front and back ends;

a terminal having a bore, a stepped outer surface having a first outer diameter commensurate with an inner diameter of said sleeve, front and back opposing ends, the back end of the terminal including at least a second contact surface, the stepped outer surface forming a shoulder between the front and back ends;

a nut having a bore extending therethrough for receiving the sleeve, the nut being axially displaceable along at least a portion of the sleeve;

the front end of the sleeve securably attachable to the back end of the terminal, the front end of the sleeve extending around the back end of the terminal, wherein the first contact surface and second contact surface form a clamping region therebetween, said clamping region adapted to be tightened as the contact surfaces are urged toward each other;

wherein the sleeve surrounds the insulator; and

wherein the coaxial connector is disposed about a centerline, and no portion of the coaxial connector lies on the centerline.

2. The connector of claim 1 wherein said clamping region is adapted for clamping a portion of a cable conductor.

3. The connector of claim 1 wherein a mechanical connection between said cable and said connector is established via said clamping region.

4. The connector of claim 1 further comprising an insulator having a bore adapted to receive the inner conductor of the coaxial cable.

5. The connector of claim 1, the sleeve comprising a radially inward retaining lip proximate said front end and the terminal comprising a retaining groove formed on the outer surface proximate the shoulder for receiving the radially inward retaining lip.

6. The connector of claim 1, the sleeve comprising a radially outward flange proximate the front end thereof.

25. The connector of claim 1 wherein the nut surrounds the sleeve and the nut surrounds the terminal.

26. The connector of claim 1 wherein the nut contacts the sleeve and the nut contacts the terminal.

7-12. -12. (canceled)

13. A coaxial connector for attachment to a coaxial cable, the coaxial cable including an outer conductor, an inner conductor and an insulating jacket, the insulating jacket of the coaxial cable having an outer diameter, the coaxial connector comprising:

a terminal having front and back opposing ends, the back end of the terminal including a first contact surface and at least one insulator having a bore for accommodating the passage therethrough of the inner conductor of the coaxial cable;

a sleeve engagable to the back end of the terminal and extending around the back end of the terminal, the sleeve including a second contact surface, the sleeve including an internal bore extending therethrough for allowing passage of the coaxial cable, at least a portion of the internal bore having an internal diameter commensurate with the outer diameter of the insulating jacket of the coaxial cable;

the first and second contact surfaces forming a gap therebetween for clamping a portion of the outer conductor of the coaxial cable therebetween, wherein the gap decreases as a nut extending around the sleeve and terminal is axially displaced toward a front ends of the terminal.

14-17. -17. (canceled)

18. A coaxial connector in combination with a coaxial cable, the cable comprising an inner conductor disposed about a centerline and an outer conductor, the coaxial connector comprising:

a sleeve comprising an inner surface and an outer surface, the inner surface defining a first bore adapted to receive the cable, the inner surface comprising a first contact surface;

a terminal comprising an inner surface and an outer surface, the inner surface defining a second bore, the outer surface comprising a second contact surface;

an insulator mounted within the second bore, the insulator comprising an inner surface and an outer surface, the inner surface of the insulator defining a third bore adapted to receive the inner conductor of the cable, wherein the outer surface of the insulator contacts the inner surface of the terminal, and wherein the inner conductor of the cable is disposed in the third bore and extends through the insulator; and

a nut mounted around the outer surface of the sleeve;

wherein at least a portion of the outer conductor is disposed between the first and second contact surfaces;

wherein the sleeve surrounds the insulator; and

wherein no portion of the coaxial connector lies on the centerline.

19. The combination of claim 18 wherein the first, second, and third bores are coaxial with the coaxial cable.

20. The combination of claim 18 wherein the outer conductor is compressed between the first and second contact surfaces.

27. The connector of claim 18 wherein the nut surrounds the sleeve and the nut surrounds the terminal.

28. The connector of claim 18 wherein the nut contacts the sleeve and the nut contacts the terminal.

21. A coaxial connector for use with a coaxial cable, the cable comprising an inner conductor and an outer conductor, the coaxial connector comprising:

a sleeve comprising an inner surface and an outer surface, the inner surface defining a first bore adapted to receive the cable, the inner surface comprising a first contact surface;

a terminal comprising an inner surface and an outer surface, the inner surface defining a second bore, the outer surface comprising a second contact surface;

an insulator mounted within the second bore, the insulator comprising an inner surface and an outer surface, the inner surface of the insulator defining a third bore adapted to receive the inner conductor of the cable, wherein the outer surface of the insulator contacts the inner surface of the terminal, and wherein the inner conductor of the cable is disposed in the third bore and extends through the insulator; and

a nut mounted around the outer surface of the sleeve;

wherein the sleeve, the terminal, the insulator, and the nut are concentrically disposed about a centerline, and the sleeve surrounds the insulator; and

wherein no portion of the coaxial connector lies on the centerline.

22. The connector of claim 21 wherein the terminal and the sleeve are non-rotatably mounted to each other.

23. The connector of claim 21 wherein the terminal and the sleeve are compression fit together.

29. The connector of claim 21 wherein the nut surrounds the sleeve and the nut surrounds the terminal.

30. The connector of claim 21 wherein the nut contacts the sleeve and the nut contacts the terminal.

24. A hardline coaxial connector adapted to accommodate a coaxial cable having an outer diameter of between 0.52 and 0.56 inches, the connector comprising a sleeve having front and back opposing ends and a bore extending therethrough for allowing passage of the coaxial cable therethrough, a terminal containing an insulator adapted to accommodate the passage therethrough of an inner conductor of the coaxial cable for attaching said inner conductor to a port, wherein the sleeve surrounds the insulator, and wherein the coaxial connector is disposed about a centerline, and no portion of the coaxial connector lies on the centerline.

31. A coaxial connector for attachment to a coaxial cable having an outer conductor and an inner conductor, the outer conductor of the coaxial cable having an outer diameter, the coaxial connector comprising:

a sleeve having front and back opposing ends and a bore extending therethrough for allowing passage of the coaxial cable therethrough, at least a portion of the bore having an inner diameter commensurate with the outer diameter of the outer conductor of the coaxial cable, and at least a first contact surface located between said front and back ends;

a terminal having a bore, a stepped outer surface having a first outer diameter commensurate with an inner diameter of said sleeve, front and back opposing ends, the back end of the terminal including at least a second contact surface, the stepped outer surface forming a shoulder between the front and back ends;

a nut having a bore extending therethrough for receiving the sleeve, the nut being axially displaceable along at least a portion of the sleeve;

the front end of the sleeve securably attachable to the back end of the terminal, the front end of the sleeve extending around the back end of the terminal, wherein the first contact surface and second contact surface form a clamping region therebetween, said clamping region adapted to be tightened as the contact surfaces are urged toward each other;

wherein the nut contacts the sleeve, the nut contacts the terminal, and the sleeve surrounds the insulator; and

wherein the coaxial connector is disposed about a centerline, and no portion of the coaxial connector lies on the centerline.