Electrical connectors – With coupling movement-actuating means or retaining means in... – Including compound movement of coupling part
Reexamination Certificate
2001-05-11
2001-12-11
Ta, Tho D. (Department: 2833)
Electrical connectors
With coupling movement-actuating means or retaining means in...
Including compound movement of coupling part
C439S259000
Reexamination Certificate
active
06328587
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a contact for a zero-insert-force (ZIF) socket type connector, the contact particularly having a structure, which enables the contact to be accurately inserted into a cavity in a base of the connector without any interference.
2. Description of Related Art
ZIF socket type connectors are widely used in the computer field. The socket connector normally comprises a base having a plurality of vertically extending cavities defined therein and a plurality of contacts respectively received in the plurality of cavities. The contact is generally formed in a Y shape having a leg for extending through a hole defined in a bottom of the cavity, a fixing section for fitting in the cavity, and a flexible contacting section for contacting a terminal pin of a chip. A guide portion is integrally formed at an upper end of the contacting section. One side of the guide portion is integrally formed with a positioning member extending perpendicularly to the guide portion. The positioning member has its outer end thereof extended to a position nearly mated with an inner side wall of the cavity, whereby in the assembly a lower comer of the outer end of the positioning member often strikes an upper edge of the cavity. If the contacts are forcefully inserted into the cavities and interference occurs, the contacts will be deformed, which causes poor transmission of electrical signals. Related information dealing with such situation is disclosed in U.S. Pat. No. 5,342,214.
Therefore, it is an objective of the invention to provide an improved contact of the ZIF socket type connector to mitigate and/or obviate the aforementioned problems.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a contact for a ZIF socket type connector particularly having a flexible contacting section with a rounded edge formed at a lower comer of an outer end of a protrusion extended perpendicularly from the contacting section so as to prevent the contact from striking an upper edge of a cavity defined in a base of the connector in the assembly process, and to ensure the contact is accurately fitted in a cavity and contacted with a terminal pin inserted into the cavity in a good connection.
The detailed features of the present invention will be apparent in the detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 5443591 (1995-08-01), Tsai
patent: 5454727 (1995-10-01), Hsu
patent: 5492488 (1996-02-01), Hsu
Chao Fei-Fei
Ta Tho D.
Venable Baetjer Howard & Civiletti LLP
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