Tool-free coaxial connector

• US 7,806,725 B1
• Filed: 04/23/2009
• Issued: 10/05/2010
• Est. Priority Date: 04/23/2009
• Status: Active Grant

• Current Assignee: EZconn Corporation
• Original Assignee: EZconn Corporation
• Inventors: Chen, Yi-Hsiang
• Primary Examiner(s): Nguyen; Truc T
• Application Number:
  US12/385,907
• Publication Number:
  US 20100273349A1
• Time in Patent Office: 530 Days
• Field of Search: 439/578
• US Class Current: 439/578
• 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 tool-free coaxial connector includes an outer sleeve, an inner sleeve coaxial with the outer sleeve, and an annular tooth provided around an inner wall surface of the inner sleeve. The inner sleeve can receive a central conductor and an insulating spacer of the coaxial cable therein, and the outer sleeve can receive a braided metal sheath and an insulating sheath of the coaxial cable therein. When a stripped free end of the coaxial cable is inserted into the coaxial connector, the inner sleeve is forced into between the insulating spacer and the braided metal sheath, and the annular tooth is tightly engaged with the insulating spacer; and when the coaxial cable is rearward pulled, the inner sleeve is rearward moved from a first to a second position and the insulating sheath of the coaxial cable is pressed against an annular rib in the outer sleeve.

Claims

1. A tool-free coaxial connector for installing on a coaxial cable without the need of using any tool and allowing the coaxial cable to mechanically and electrically connect to a corresponding connector on an electronic device, the coaxial cable including a central conductor, a insulating spacer surrounding the central conductor, at least one layer of braided metal sheath surrounding the insulating spacer, and an insulating sheath surrounding the braided metal sheath;

the coaxial connector comprising;

an inner sleeve having an outward flange on an end section and an outer sleeve coaxially located around the inner sleeve with an annular hollow space left between the inner and the outer sleeve;

the inner sleeve being adapted to receive the central conductor and the insulating spacer of the coaxial cable therein, the outer sleeve being adapted to receive the braided metal sheath and the insulating sheath therein, and the inner sleeve being rearward movable from a first position to a second position in the outer sleeve;

an annular tooth being provided around an inner wall surface of the inner sleeve at a predetermined position thereof; and

a collar located between the inner sleeve and the outer sleeve adaptable to abut said outer flange of inner sleeve when said coaxial cable is displaced in a rearward direction;

whereby when installing the coaxial connector on the coaxial cable by inserting a stripped free end of the coaxial cable into the coaxial connector via a rear open end of the outer sleeve, the inner sleeve is forced between the insulating spacer and the braided metal sheath, and the annular tooth around the inner wall surface of the inner sleeve is tightly engaged with the insulating spacer; and

when the coaxial cable is rearwardly displaced, the inner sleeve is simultaneously rearward displaced from the first position to the second position where said outward flange of the inner sleeve abuts an outward flange of the collar, thereby terminating the rearward movement of the inner sleeve.

2. The tool-free coaxial connector as claimed in claim 1, wherein the inner sleeve is axially movable in the collar.

3. The tool-free coaxial connector as claimed in claim 1, wherein the outer sleeve is provided on an inner wall surface adjacent to the rear open end with a radially inward annular rib, whereby when the inner sleeve is moved to the second position, the annular rib and the insulating sheath of the coaxial cable are forced to tightly press against and accordingly associate with each other.