Electrical connector with improved centering of mating terminal pins, for a fluorescent-lighting ballast

摘要

One half-connector terminates a set of leads in the ballast, for carrying electrical power to and from the ballast coils. Another half- connector terminates another set of leads outside the ballast, connected e.g. to carry power to lamp sockets. Male contacts, preferably formed very inexpensively as bared ends of one set of leads, are held in a first of the half-connectors; female contacts, connected to the other set of leads, are held in a second of the two half-connectors. Through-holes in the second half-connector each hold one female contact; each hole has a necked-down section, forward from the contact, and some device (preferably an ultrasonically displaced slug) to retain the contact. In one aspect of the invention, each hole also has a bore whose transverse preformed dimension is biggest immediately rearward from the necked-down forward section. In a second aspect of the invention, each necked-down section has a large-mouthed funnel to guide even a badly bent male contact into the female contact, accommodating weak tips of the bared wire ends. The first aspect of the invention enables low-cost use of the second.