Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – With guide for directing panel circuit movement
Reexamination Certificate
1999-09-16
2001-05-15
Patel, Tulsidas (Department: 2839)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
With guide for directing panel circuit movement
C439S102000
Reexamination Certificate
active
06231351
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a connector, and particularly to a connector having a pair of retention devices adjustably retained in an insulative housing thereof to ensure coplanarity with a printed circuit board on which the connector is mounted.
Description of the Prior Art
Taiwan Patent Application Nos. 83106533 and 83210289 each disclose a connector comprising an insulative housing having a pair of arms, a plurality of contacts received in the housing and a pair of retention devices respectively retained in the arms. A conventional connector
10
′ is illustrated in
FIGS. 1 and 2
. The connector
10
′ comprises a U-shaped insulative housing
1
′, a plurality of contacts
3
′ and a pair of retention devices
2
′.The housing
1
′ comprises a slot
11
′ for receiving an edge of a card (not shown), a plurality of cavities
12
′ for receiving the contacts
3
′ and a pair of arms
13
′ extending from opposite ends thereof each defining an aperture
14
′.Each retention device
2
′ comprises a retention portion
21
′ having a pair of barbs
210
′ thereon and a solder plate
22
′ for being soldered onto a printed circuit board (not shown). Each retention device
2
′ is assembled in the corresponding arm
13
′ with the retention portion
21
′ thereof securely retained in the aperture
14
′ and the barbs
210
′ interferentially engaged with a periphery of the aperture
14
′.However, since the retention devices
2
′ are securely retained in the arms
13
′ and are not adjustable in compliance with the arms
13
′, coplanarity between the solder plate
22
′ and the printed circuit board is difficult to obtain when the retention devices
2
′ are manufactured with low precision. Thus, it is difficult to securely solder the solder plates
22
′ on the printed circuit board. Hence, an improved electrical connector is required to overcome the disadvantages of the prior art.
BRIEF SUMMARY OF THE INVENTION
An object of the present invention is to provide a connector having a pair of retention devices adjustably retained in an insulative housing thereof to ensure coplanarity with a printed circuit board on which the connector is mounted.
Accordingly, an electrical connector comprises an insulative housing, a number of contacts received in the housing and a pair of retention devices. The housing comprises an elongate base defining a slot for receiving an edge of a card therein and a pair of arms laterally extending from opposite ends of the base. Each arm comprises a resilient cantilever and an aperture. Each retention device comprises a main portion, a spring arm and a horizontal solder pad soldered to a printed circuit board. The retention device is assembled to the corresponding arm with the main portion movably received in the aperture to ensure coplanarity between the horizontal solder pad and a bottom surface of the housing when the connector is mounted on a printed circuit board.
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: 5290174 (1994-03-01), Woratyla et al.
patent: 5588850 (1996-12-01), Pan et al.
patent: 5613860 (1997-03-01), Banakis et al.
patent: 5653596 (1997-08-01), Banakis et al.
Chen Yih-Sin
Lin Willy
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Patel Tulsidas
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