Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – Distinct contact secured to panel circuit
Reexamination Certificate
1999-10-18
2001-01-30
Paumen, Gary F. (Department: 2833)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
Distinct contact secured to panel circuit
Reexamination Certificate
active
06179630
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector, and particularly to an electrical connector having a high density of contacts retained therein.
2. Description of Prior Art
Generally, a conventional electrical connector having a high density of contacts retained therein is mounted on a printed circuit board (PCB) for electrical connection with the PCB. An arrangement of the contacts may be in several rows, such as upper and lower rows. The upper and lower rows of contacts of some conventional connectors are often offset from each other whereby each contact extends downwardly to form a terminating portion for terminating at the PCB without contacting adjacent contacts. Examples of such conventional electrical connectors are disclosed in Taiwan Patent Application Nos. 78212155, 79204276, 79214090, 80202277, 80209366 and 80213361 and U.S. Pat. Nos. 4,857,017; 4,955,819 and 5,451,158.
However, upper and lower rows of contacts of some connectors are aligned. Thus, the terminating portions of different rows extending downwardly may cause a short circuit between adjacent contacts.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an electrical connector having upper and lower rows of aligned contacts with terminating portions thereof offsetting from each other for properly attaching to a PCB.
In the preferred embodiment of the present invention, an electrical connector mounted to a PCB comprises a housing unit, a contact unit and a pair of boardlocks. The housing unit has a projection with a plurality of upper and lower passageways defined therethrough and a pair of slots formed in opposite lateral sides thereof. The contact unit includes a plurality of pairs of upper and lower contacts respectively received in the upper and lower passageways of the housing unit. Mating portions of each pair of upper and lower contacts are vertically aligned, while tail portions thereof are offset from each other, when the contacts are mounted in a housing of the connector. The boardlocks are received in the slots of the housing unit. Each boardlock has a pair legs and a solder pad on opposite sides thereof.
REFERENCES:
patent: 4857017 (1989-08-01), Erk
patent: 4955819 (1990-09-01), Harting et al.
patent: 5201662 (1993-04-01), Roche
patent: 5451158 (1995-09-01), Lin et al.
patent: 5632650 (1997-05-01), Boling et al.
patent: 5823799 (1998-10-01), Tor et al.
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Paumen Gary F.
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