| 摘要 |
An electrical connector having an electrically non-conductive carrier, the carrier having a plurality of contact pin mounting holes extending there through. Ea ch hole has a square cross-section. An electrically conductive contact pin is passed throu gh each hole. Each contact pin has a generally cylindrical shape with a leading pin section, a trailing pin section, and a contact head at the end of the trailing pin section. A retainer is provided on the pin separating the leading pin section from the trailing pin section. The traili ng pin section has a length slightly longer than the length of the hole and a diameter slightly less than the width of the hole. The retainer and the contact head both have a diameter at least slightly greater than the width of the hole to retain the pin in the hole. An electrical contact pin for use with a multi pin electrical connector adapted to be surface mounted on a printed circuit board. The contact pin is generally cylindrical in shape and has a leading pin section, a trailing pin section, and a retainer integr al with the pin and located between the leading pin section and the trailing pin section. A contact head is provided at the free end of the trailing pin section. The retainer is in the form of a collar with a leading conical portion adjacent the leading pin section and a trailing cylindrical portion adjacent the trailing pin section. A method of inserting an electrically conductive, cylindrical, contact pin into a square hole on a non-electrically conductive carrier, the contact pin having a leading pin section with at least a portion having a diameter slightly greater than the width of the hole and a retainer behind the leading pin section having a diameter greater than the diameter o f the portion of the leading pin section. The method comprises pushing the leading pin sectio n into and through the hole to initially deform the hole, and continuing to push the pi n to move the retainer through the hole to complete deformation of the hole to be able to pass the retainer through the hole.
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