Electrical connector ensuring effective grounding contact

• US 7,674,132 B1
• Filed: 04/23/2009
• Issued: 03/09/2010
• Est. Priority Date: 04/23/2009
• Status: Active Grant

• Current Assignee: EZconn Corporation
• Original Assignee: EZconn Corporation
• Inventors: Chen, Yi-Hsiang
• Primary Examiner(s): Paumen; Gary F.
• Application Number:
  US12/385,905
• Time in Patent Office: 320 Days
• Field of Search: 439578-585
• 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

An electric connector ensuring effective grounding contact includes coaxially arranged inner sleeve and outer sleeve and a conductive grounding element. The inner sleeve is adapted to receive a central conductor and an insulating spacer of a cable therein, and can be axially rearward moved from a first position to a second position, and the outer sleeve is adapted to receive a braided conductive grounding sheath and an insulating sheath of the cable therein. The conductive grounding element is externally immovably fitted around the inner sleeve. When a stripped free end of the cable is inserted into the connector and the cable is rearward pulled, the inner sleeve is simultaneously rearward moved from the first position to the second position, forcing the inner sleeve, the conductive grounding element, and a connecting ring coaxially mounted around the inner sleeve to electrically contact with one another.

Claims

1. An electrical connector ensuring effective grounding contact for mechanically and electrically connecting a cable to a mating connecting interface on an electric device, the cable including a central conductor, an insulating spacer surrounding the central conductor, at least one layer of braided conductive grounding sheath surrounding the insulating spacer, and an insulating sheath surrounding the braided conductive grounding sheath;

the connector comprising;

an inner sleeve and an outer sleeve coaxially located around the inner sleeve;

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

a conductive grounding element being externally immovably fitted around the inner sleeve, the conductive grounding element including a tubular main body, the tubular main body having a plurality of front elastic leaves and a plurality of rear elastic leaves formed thereon;

whereby when a stripped free end of the cable is inserted into the connector and the cable is rearward pulled, the inner sleeve is simultaneously rearward moved from the first position to the second position, forcing the inner sleeve, the conductive grounding element, and a connecting ring coaxially mounted around the inner sleeve to electrically contact with one another.

2. The electrical connector, as claimed in claim 1, wherein the inner sleeve includes a radially outward flange formed around a front end thereof, and the connecting ring internally includes a radially inward flange;

whereby when the inner sleeve is moved from the first position to the second position, the front and the rear elastic leaves are radially inward compressed by the inward flange of the connecting ring to rearward pass through the inward flange, and when the inner sleeve reaches at the second position, the outward flange of the inner sleeve and the front elastic leaves are in electrical contact with the inward flange of the connecting ring.

3. The electrical connector ensuring effective grounding contact for mechanically and electrically connecting a cable to a mating connecting interface on an electric device, the cable including a central conductor, an insulating spacer surrounding the central conductor, at least one layer of braided conductive grounding sheath surrounding the insulating spacer, and an insulating sheath surrounding the braided conductive grounding sheath;

the connector comprising;

an inner sleeve and an outer sleeve coaxially located around the inner sleeve;

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

a conductive grounding element being externally immovably fitted around the inner sleeve;

whereby when a stripped free end of the cable is inserted into the connector and the cable is rearward pulled, the inner sleeve is simultaneously rearward moved from the first position to the second position, forcing the inner sleeve, the conductive grounding element, and a connecting ring coaxially mounted around the inner sleeve to electrically contact with one another; and

wherein the inner sleeve is formed around an inner wall surface at a predetermined position with an annular tooth, such that when the free end of the cable is fully inserted into the connector, the annular tooth is forced to tightly press against and accordingly associate with the insulating spacer of the cable.