Electrical jack connector

Abstract

An electrical jack assembly for connecting a rotary plug is disclosed for use in a cooking range equipped with a turntable and an oven unit, the assembly includes three main units: a sleeve unit, a casing, and a rear cover; the sleeve unit has a cylindrical sleeve with a central bore for insertion of the plug at its front; the casing incorporates two paired leaf spring contact frames, each having a contact angled inward to form two paired contacts on the plug at different longitudinal points on the plug, each contact has an oil-impregnated roller at its end, and the rollers are each arranged to contact the plug at right angles to the longitudinal axis of the plug; the rear cover is mounted with a switch unit at its rear, the switch unit includes two segments which are mounted across a center hole of the rear cover to form a contact point at a head end of the inserted plug, wherein one segment thereof is provided with an insulating plate which is exposed in the central hole to contact to the head end of the plug such that, when the plug head end contacts to the insulating plate, a switching action takes place between the two segments by insertion of the plug and retains the head end of the plug on the insulating plate during rotation of the plug.