Cable end connector

• US 7,942,695 B1
• Filed: 09/23/2010
• Issued: 05/17/2011
• Est. Priority Date: 09/23/2010
• Status: Expired due to Fees

• Current Assignee: Yueh-Chiung Lu
• Original Assignee: Yueh-Chiung Lu
• Inventors: Lu, Yueh-Chiung
• Primary Examiner(s): Hammond; Briggitte R
• Application Number:
  US12/889,015
• Time in Patent Office: 236 Days
• Field of Search: 439/578, 439/584
• US Class Current: 439/578
• CPC Class Codes: H01R 13/111 co-operating with pins having a circular transverse section
• CPC Class Codes: H01R 4/48185 adapted for axial insertion of a wire end
• CPC Class Codes: H01R 9/0524 Connection to outer conductor by action of a clamping member, e.g. screw fastening means H01R9/0515 takes precedence

Abstract

A cable end connector includes a tubular connection member having a coupling portion, a core tube having a stop flange mounted in the coupling portion, a barbed flange and a coupling portion, a plastic outer tubular member having a front tubular coupling portion coupled to the coupling portion, a rear tubular body and an annular packing portion for engaging the coupling portion of the core tube, a retaining sleeve fastened to the rear tubular body, and an insulative holder block mounted in the core tube to hold a metal center pin for the connection of the center conductor of a coaxial cable.

Claims

1. A cable end connector, comprising:

a tubular connection member, said tubular connection member comprising an axial hole defined therein and extending through opposing front and rear sides thereof and a coupling portion located on a rear side around the axial hole thereof;

an core tube, said core tube comprising a receiving chamber defined therein and extending through opposing front and rear sides thereof, a stop flange outwardly protruded from the periphery of the front side thereof and mounted in the coupling portion of said tubular connection member, a barbed flange located on the rear side thereof, a coupling portion spaced between said stop flange and said barbed flange;

a plastic outer tubular member, said plastic outer tubular member comprising a front tubular coupling portion coupled to the coupling portion of said tubular connection member, a rear tubular body, an accommodation chamber axially extending through said front tubular coupling portion and said rear tubular boy, and an annular packing portion inwardly protruded from an inside wall of said front tubular coupling portion and suspending in said accommodation chamber for engaging the coupling portion of said core tube; and

a retaining sleeve fastened to the rear tubular body of said plastic outer tubular member, said retaining sleeve comprising a sleeve chamber defined therein for receiving said plastic outer tubular member, an insertion hole located on a rear side thereof in communication with said sleeve chamber and a shoulder protruded from an inside wall thereof adjacent to said insertion hole for stopping said plastic outer tubular member in place.

2. The cable end connector as claimed in claim 1, wherein said tubular connection member further comprises an annular retaining rim inwardly protruded from one end of the coupling portion thereof for engaging the stop flange of said core tube.

3. The cable end connector as claimed in claim 1, wherein said tubular connection member further comprises a connection portion located on the front side around the axial hole thereof for connection to an external mating electric connector.

4. The cable end connector as claimed in claim 1, wherein said tubular connection member further comprises a connection portion located on the front side around the axial hole thereof for connection to an external mating electric connector, a plurality of longitudinal crevices cut through said connection portion thereof, and a hollow sliding shell axially slidably coupled to said connection portion.

5. The cable end connector as claimed in claim 4, wherein said hollow sliding shell comprises a sliding hole axially forwardly extending to a front side thereof and adapted for receiving said connection portion of said tubular connection member, a receiving chamber axially backwardly extending from said sliding hole to a rear side thereof, and a locating groove extending around an inside wall thereof in said receiving chamber;

tubular connection member further comprises a snap ring fixedly fastened to the periphery of said connection portion, an insulative washer mounted on said connection portion and stopped against a front side of said snap ring, a metal washer sleeved onto said connection portion and fastened to the locating groove of said hollow sliding shell for axial movement with said hollow sliding shell along said connection portion and an elastic member mounted around said connection portion and stopped between said snap ring and said metal washer.

6. The cable end connector as claimed in claim 1, further comprising a stop member mounted in the axial hole of said tubular connection member and stopped against the stop flange of said core tube, said stop member comprising an inside chamber defined therein, a through hole located on a front side in communication with said inside chamber, an opening located on a rear side thereof and kept in communication between said inside chamber and the receiving chamber of said core tube.

7. The cable end connector as claimed in claim 1, further comprising an insulative holder block mounted in the axial hole of said tubular connection member and a metal center pin fastened to said insulative holder block, said insulative holder block comprising a rear abutment face located on a rear side thereof and abutted against the stop flange of said core tube, a front mounting hole located on a front side thereof and a rear guide hole located on said rear abutment face in communication with said front mounting hole, said metal center pin comprising a rear mounting base press-fitted into the front mounting hole of said insulative holder block, a front pin head axially forwardly extended from said rear mounting base and suspending outside said insulative holder block, a rear center hole formed in said rear mounting base and axially extending to a rear side of said rear mounting base remote from said front pin head and a metal clamp mounted in said rear center hole, said metal clamp comprising a plurality of metal clamp pawls equiangularly spaced around the periphery of said rear center hole and obliquely forwardly extending in direction toward the central axis of said rear center hole.

8. The cable end connector as claimed in claim 1, further comprising an insulative holder block mounted in said receiving chamber of said core tube and a metal center pin fastened to said insulative holder block, said insulative holder block comprising a rear abutment face located on a rear side thereof and facing the insertion hole of said retaining sleeve, a front mounting hole located on a front side thereof and a rear guide hole located on said rear abutment face in communication with said front mounting hole, said metal center pin comprising a rear mounting base press-fitted into the front mounting hole of said insulative holder block, a front pin head axially forwardly extended from said rear mounting base and suspending outside said insulative holder block, a rear center hole formed in said rear mounting base and axially extending to a rear side of said rear mounting base remote from said front pin head and a metal clamp mounted in said rear center hole, said metal clamp comprising a plurality of metal clamp pawls equiangularly spaced around the periphery of said rear center hole and obliquely forwardly extending in direction toward the central axis of said rear center hole.

9. The cable end connector as claimed in claim 1, wherein the coupling portion of said core tube comprises a coupling groove and a coupling rib extending around the periphery thereof in a parallel manner and abutted against each other;

the annular packing portion of said plastic outer tubular member comprises a packing rib suspending in said accommodation chamber and a beveled face located on one side of said packing rib, the coupling portion of said core tube having an outer diameter greater than the inner diameter of said annular packing portion of said plastic outer tubular member.

10. The cable end connector as claimed in claim 1, wherein the rear tubular body of said plastic outer tubular member has an outer diameter relatively smaller than said front tubular coupling portion and is fitted into the sleeve chamber of said retaining sleeve.

11. The cable end connector as claimed in claim 1, wherein the rear tubular body of said plastic outer tubular member has a rear end edge stopped against the shoulder of said retaining sleeve.

12. The cable end connector as claimed in claim 1, wherein the insertion hole of said retaining sleeve is a tapered hole having a diameter gradually reducing indirection toward the inside of said sleeve chamber.