Electrical connectors – With insulation other than conductor sheath – Plural-contact coupling part
Reexamination Certificate
1999-05-03
2001-05-22
Nguyen, Khiem (Department: 2839)
Electrical connectors
With insulation other than conductor sheath
Plural-contact coupling part
Reexamination Certificate
active
06234847
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to an electrical connector, and especially to a modular jack electrical connector assembly which provides stable and reliable electrical communication.
As the communication industry rapidly develops, a wide variety of electrical products relating to communication networks have been introduced to the market. Current electrical instruments must process an increasing amount of information and especially, the transmission of the high frequency signals become common between electrical instruments. Thus, filter requirements are being placed on the quality of electrical products to ensure proper signal transmission. Emphasized is how to lessen the negative affects of noise signals acting on communication devices. U.S. Pat. Nos. 5,069,641; 5,587,884; and 5,647,767 disclose electrical connectors for communication devices which address the problem of noise.
The conventional connectors are usually equipped with signal transforming devices for reducing the affects of noise signals. However, a number of conductive terminals received within the electrical connector must be divided into groups for connecting with the signal transforming device to ensure proper transmission of signals. Furthermore, the conventional signal transforming device assembled within electrical connector usually lacks an electrical element to eliminate noise signals.
Alternative electrical connectors often adopt a grounding device having at least a grounding lead for grounding noise signals. However, the grounding leads must be soldered to the grounding device and to a circuit board, which results in complicating the manufacture and assembly process, as well as increasing costs. Additionally, a number of auxiliary structures or components must be provided for cooperating with the grounding leads thereby further hindering manufacture and assembly.
BRIEF SUMMARY OF THE INVENTION
The main object of the present invention is to provide an electrical connector having a modular subassembly containing a plurality of conductive components of the connector to facilitate assembly with other components of the connector and promoting stable and reliable signal transmission between the connector and a mating connector.
The second object of the present invention is to provide an electrical connector having a modular subassembly having a circuit board attached to a rear surface of the insulative housing thereby providing enough space for containing predetermined electrical elements for filtering and conditioning noise signals.
The third object of the present invention is to provide an electrical connector including a modular subassembly having a coat of conductive material applied thereto in cooperation with a shell conveniently and steadily fixed to an insulative housing of the connector thereby providing the connector with shielding and grounding capabilities.
In accordance with one aspect of the present invention, the modular subassembly attached to the connector includes an insert module and a circuit board with a number of electrical elements attached thereto. The module consists of an upper insert member receiving a plurality of first contacts therein, a lower insert member receiving a plurality of second contacts therein. Thus, the modular subassembly can be conveniently assembled with the other components of the connector as a whole thereby simplifying the structure of the connector and providing enough space for containing sufficient electrical elements attached to the subassembly.
Moreover, a coat of conductive material, such as a coat of tin foil, is provided on an edge of the circuit board of the modular subassembly for completing a grounding path from electrically contacting resilient arms of a shell enclosing the insulative housing to the modular subassembly.
In accordance with another aspect of the present invention, the shell forms two inwardly extending resilient arms for electrically contacting with the conductive coating of the modular subassembly, grounding tabs and a rear cover, thereby providing the electrical connector with both the grounding and shielding capabilities.
REFERENCES:
patent: 5178549 (1993-01-01), Neumann et al.
patent: 5463191 (1995-10-01), Bell et al.
patent: 5647767 (1997-07-01), Scheer et al.
patent: 5989069 (1999-11-01), Tan
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Nguyen Khiem
Zarroli Michael C.
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