The invention is related to an electrical contact of an electrical connector for mounting to a printed circuit board.
The compliant pin is popularly used in the connector field for mounting to a corresponding through hole in the printed circuit board. The most popular compliant pin is of a needle eye compressively retained in the corresponding through hole in the printed circuit board. Other compressive type contact may be of a C-shaped or M-shaped cross-sectional configuration deformably retained in the through hole of the printed circuit board. Anyhow, a contradictory concern exists between the less thickness for increasing the resiliency thereof and the more thickness for avoiding earlier yielding during mating.
A small dimensioned electrical contact having required resiliency and strength, is desired.
An electrical contact of an electrical connector includes a mounting leg for being retained within a through hole of the printed circuit board wherein the mounting leg is tubular and is radially deformable to abut against an interior surface of the through hole. The mounting leg is radially thinned in thickness to confront the interior surface of the hole. The mounting leg is formed by rolling a metal plate with a C-shaped cross-section thereof. There are two thinned areas of the mounting leg, symmetrically located by two sides of the slit of the C-shaped cross-sectional configuration. Each thinned area forms a needle eye or fish eye recess from an exterior surface of the mounting leg wherein the long axis of the needle eye extends in an axial direction of the mounting leg. A shrunk type cone structure is formed at the bottom of the mounting leg wherein the thinned areas are partially located in the cone structure. The thickness of the thinned area is optimally more than one half of the original thickness of the mounting leg.
Referring to
The mounting leg 1 is made by rolling a sheet metal 101 with a slit 15 extending along an axial/vertical direction to form a C-shaped cross-sectional configuration. The mounting leg 1 includes in an exterior surface a pair of thinned areas 12 with a recess of a needle/fish eye configuration extending along the axial/vertical direction. The pair of thinned areas 12 are symmetrically arranged with regard to the slit for evenly dispersing the stress thereof during retained in the through hole 21. The mounting leg 1 has a cylindrical section 14 at the upper portion and a cone section 13 at the lower portion for guiding consideration. As shown in
While a preferred embodiment according to the present disclosure has been shown and described, equivalent modifications and changes known to persons skilled in the art according to the spirit of the present disclosure are considered within the scope of the present disclosure as described in the appended claims.
Number | Date | Country | Kind |
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2018 2 0013861 U | Jan 2018 | CN | national |
Number | Name | Date | Kind |
---|---|---|---|
3634819 | Evans | Jan 1972 | A |
4076356 | Tamburro | Feb 1978 | A |
4183610 | Key | Jan 1980 | A |
4381134 | Anselmo | Apr 1983 | A |
4526429 | Kirkman | Jul 1985 | A |
4735575 | Shaffer | Apr 1988 | A |
4783899 | Breese | Nov 1988 | A |
4802862 | Seidler | Feb 1989 | A |
4867691 | Eck | Sep 1989 | A |
4934967 | Marks | Jun 1990 | A |
5055055 | Bakker | Oct 1991 | A |
5082462 | Oswald, Jr. | Jan 1992 | A |
5083927 | Herard | Jan 1992 | A |
5199908 | Sucheski | Apr 1993 | A |
6210181 | Tomita | Apr 2001 | B1 |
6315581 | Yu | Nov 2001 | B1 |
7235742 | Aochi | Jun 2007 | B2 |
7850460 | Weiland | Dec 2010 | B2 |
Number | Date | Country | |
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20190207333 A1 | Jul 2019 | US |