Contact for board to board connector

Details Contact for board to board connector Contact for board to board connector

1999-12-21

2001-04-03

Paumen, Gary F. (Department: 2833)

Electrical connectors

With insulation other than conductor sheath

Plural-contact coupling part

Reexamination Certificate

active

06210234

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a connector, and particularly to a surface mounted board to board connector.
2. Brief Description of the Prior Art
U.S. Pat. No. 5,620,342 issued on Apr. 15, 1997 to The Whitaker Corporation, discloses a socket connector. As shown in
FIG. 4
, the socket connector
6
has an elongate slot
70
defined in a housing
60
thereof for receiving a daughter card and a plurality of contacts
61
,
71
spaced apart along the length of the slot
70
. Each of the contacts
61
includes a base section
62
interferentially fitting against a side wall
601
and a central rib
602
of the housing
60
, an arcuate section
64
angularly extending from the base section
62
and an engaging section
66
extending into the slot
70
upwardly from the arcuate section
64
. The contacts
61
and
71
are essentially identical except for the heights of the engaging sections
66
and
76
thereof.
The arcuate section
64
angularly extends from the base section
62
and bends only once, thereby providing a low normal force exerted by the connector
6
. However, the connector
6
can not be suitable for low profile applications.
Hence, an improved electrical connector is required to overcome the disadvantages of the prior art.
BRIEF SUMMARY OF THE INVENTION
A first object of the present invention is to provide a connector with a plurality of contacts which provides low normal force and low profile thereof.
To achieve the above-mentioned object, a connector includes an elongate housing having a pair of side walls, a central wall defining two rows of chambers on either side thereof, and a pair of slots respectively defined between the side walls and the central wall, and a plurality of contacts received in the chambers.
The contacts each include a base, an arcuate beam upwardly depending from the base, and a U-shaped engaging beam extending upwardly from the arcuate beam. The arcuate beam bends twice and so forms a lower curved portion and an upper curved portion. The engaging beam extends into the slot and has a top curved portion.
The base forms an inner leg and an outer leg on an upper edge thereof for engaging a side wall of the housing therebetween, thereby securing the contact in the chamber. The inner leg has a plurality of barbs for interferentially engaging with the side wall and the base further forms a bump at an inward surface thereof for interferentially fitting with the central wall, helping to fix the contact in position.
The contact provides low normal force exerted by the engaging beam and is adapted for low profile applications.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of the present embodiment when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 5580257 (1996-12-01), Harwath
patent: 5620342 (1997-04-01), Kinross
patent: 5779507 (1998-07-01), Yeh

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