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Miniature Contact Pin

IP.com Disclosure Number: IPCOM000051986D
Original Publication Date: 1981-Apr-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Related People

Renz, U: AUTHOR

Abstract

A contact pin designed as a dowel is used as an electrical connector which is led through a wall, for example, the wall of an instrument housing, or a board carrying electrical components. The contact pin has both a dowel and a crimp function, and is particularly suitable for miniature connectors of integrated circuit boards.

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Miniature Contact Pin

A contact pin designed as a dowel is used as an electrical connector which is led through a wall, for example, the wall of an instrument housing, or a board carrying electrical components. The contact pin has both a dowel and a crimp function, and is particularly suitable for miniature connectors of integrated circuit boards.

Board 1 has a bore 2 into which contact pin 3 is inserted (Fig. 1). Contact pin 3 is secured in board 1 by means of the sawtooth profile 5 of its reinforced center part 4. Contact pin 3 is driven into bore 2 until its collar 6 rests against the surface of board 1. At its rear end, the threaded pin extending through board 1 has a concentric bore 7, the first section of which is provided with an internal thread 8 for fixing connecting wire 9 on its insulation 10. Bore 7 is terminated by a cylindrical part 11, the diameter of which corresponds to that of connecting wire 9 from which the insulation has been removed. In the region of bore 7, contact pin 3 is provided with a cross slot 12 (Fig. 2) extending over the length of internal thread 8 and permitting contact pin 3 to be pressed together for assembly in board 1.

During assembly, end 13 of connecting wire 9, from which the insulation has been removed, is inserted into bore 7. As the outer diameter of connecting wire 9 is slightly greater than internal thread 8, threaded pin 3 expands in the region of internal thread 8 because of the sawn cross slot 12. Then, threaded pi...