Patent ID: 8303338

Claim:
A grounding electrical connector for mechanically and electrically connecting a coaxial cable with a threaded interface connector of an electronic device, the cable including a central conductor, an insulator enclosing the central conductor, at least one external conductor disposed around the insulator, and a skin coated on the external conductor, the connector comprising: a conductive inner sleeve and a conductive outer sleeve coaxially positioned around the inner sleeve, the inner sleeve serving to receive the central conductor and the insulator of the cable, the outer sleeve serving to receive the external conductor and the skin of the cable, the inner sleeve having an outer flange formed at front end of the inner sleeve, an interface section, a tapered section positioned between the outer flange and the interface section, and a rear end extension section; a nut having an inner thread rotatably connected with an outer threaded interface connector of an electronic device, the nut having an inner flange formed at rear end of the nut and positioned around the tapered section of the inner sleeve, the inner flange defining a hole having a tapered surface in which the tapered section of the inner sleeve is aligned with the tapered surface; and a C-shaped conductive contact spring positioned between the outer flange and inner flange, and being back and forth movably arranged around the tapered section of the inner sleeve in contact with the inner flange of the nut, whereby the C-shaped contact spring is back and forth movable to keep the nut in contact with the inner sleeve as the nut is moved axially along the inner sleeve so as to achieve good grounding effect.