Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – With provision to conduct electricity from panel circuit to...
Reexamination Certificate
1999-10-28
2001-03-27
Patel, Tulsidas (Department: 2839)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
With provision to conduct electricity from panel circuit to...
C439S637000
Reexamination Certificate
active
06206706
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a board-to-board electrical connector, and particularly to an electrical connector for signal transmission between different circuit boards.
A conventional board-to-board electrical connector is disclosed in Taiwan Patent Application No. 84203014. Referring to
FIG. 1
, the electrical connector has an insulative housing
2
and a plurality of terminals
1
received in passageways
20
formed in the housing
2
. A soldering portion
11
is formed at an end of each terminal
1
for being soldered to a circuit board
3
and securing the electrical connector thereon. A contacting portion
12
is formed on an opposite end of the terminal
1
. A fixing portion
10
is formed on the terminal
1
proximate the soldering portion
11
for engaging with the insulative housing
2
and securing the terminal
1
in the corresponding passageway
20
. A bottom portion of the passageway
20
receives the soldering portion
11
of the terminal
1
whereby the soldering portion is parallel to the circuit board
3
. When soldering the electrical connector to the circuit board
3
, molten solder may enter the housing
2
through the passageways
20
allowing solder flux to wick up the terminals
1
possibly leading to a short circuit being formed between the terminals
1
. In the conventional design, the fixing portion
10
is distanced from the contacting portion
12
, and the terminal
1
may easily buckle when an insertion force is exerted thereon for inserting the terminal
1
into the housing
12
.
BRIEF SUMMARY OF THE INVENTION
A main object of the present invention is to provide an electrical connector having an insulative housing and a plurality of terminals, each terminal having a plurality of fixing sections for securing the terminal to the housing, and an obstruction portion formed in each terminal for obstructing wicking of solder flux.
Another object of the present invention is to provide an electrical connector having an insulative housing and a plurality of terminals, each terminal having a plurality of fixing sections distanced from each other for preventing buckling of the terminal during assembly.
To fulfill the above-mentioned object, according to a preferred embodiment of the present invention, an electrical connector includes an elongate insulative housing and a plurality of terminals. The housing forms an engaging slot and a plurality of pairs of passageways exposed to the engaging slot for receiving corresponding terminals therein. Each terminal forms a plurality of fixing sections on a middle section thereof. The fixing sections are spaced from each other a distance whereby a possible bucking of the terminal when inserting it into the housing is prevented. An obstruction portion comprising a folded portion and a pair of projections is formed on the terminal proximate a circuit board for preventing wicking of flux. A spacing recess is formed in the housing opposite the engaging slot and proximate a circuit board. A pair of positioning posts is formed on a bottom surface of the housing proximate the spacing recess for engaging with corresponding holes formed in the circuit board. A plurality of receiving slots is formed in lateral surfaces of the spacing recess proximate the circuit board for engaging with the folded portions of the terminals. A rib is formed in the spacing recess for strengthening the insulative housing.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 5137454 (1992-08-01), Baechtle
patent: 5626500 (1997-05-01), Yoshimura
patent: 5639265 (1997-06-01), Nishio et al.
patent: 5800213 (1998-09-01), Regnier et al.
patent: 5836773 (1998-11-01), McHugh et al.
patent: 5971800 (1999-10-01), Azuma et al.
Lee Da Ching
Wu Ming Chuan
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Patel Tulsidas
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