Electrical connectors – Electromagnetic or electrostatic shield – Multi-part shield body
Utility Patent
1999-10-12
2001-01-02
Paumen, Gary F. (Department: 2833)
Electrical connectors
Electromagnetic or electrostatic shield
Multi-part shield body
C439S076100, C439S067000
Utility Patent
active
06168469
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention is related to an electrical connector assembly and method for making the same. The electrical connector assembly is particularly suitable for use in electrically interconnecting high frequency signal circuits on backplanes, daughter boards and other like substrates.
2. Description of the Prior Art
Following the development of communication and computer technology, a high density connector assembly with pins in a matrix arrangement is devised to construct a large number of signal transmitting paths for connecting two electrical devices.
Such a high density connector assembly can be referred to U.S. Pat. Nos. 4,846,727, 4,975,084, 5,066,236, 5,104,341, 5,286,212, 5,341,211, 5,496,183, 5,664,968 and 5,924,899.
These connector assemblies have a common disadvantage that their design and manufacturing are relatively complicated whereby they have a high cost.
Furthermore, as the transmitting speed of signals becomes faster and faster, crosstalk of signals between different signal paths becomes a serious problem. U.S. Pat. Nos. 4,846,727 and 5,664,968 address this problem; however, the solution thereof uses a number of metal plates interposed between every two modules of a receptacle connector of the assembly, which not only increases the cost but also complicates the manufacturing of the connector assembly. Moreover, as a header connector of the assembly does not have shielding effectiveness, crosstalk between the signals may still happen.
Hence, an improved electrical connector assembly is needed to eliminate the above mentioned defects of current art.
SUMMARY OF THE INVENTION
Accordingly, an objective of the present invention is to provide an electrical connector assembly with good shielding effectiveness so that crosstalk of signals transmitted between different paths of the connector assembly can be effectively prevented.
Another objective of the present invention is to provide an electrical connector assembly having a low manufacturing cost.
Still another objective of the present invention is to provide an electrical connector assembly wherein electrical characteristics of signal transmitting paths of the connector assembly can be easily modified to meet different requirements.
A further objective of the present invention is to provide an electrical connector assembly wherein active/passive electrical components can be easily mounted in the connector assembly to achieve some special functions.
To fulfill the above mentioned objectives, according to one embodiment of the present invention, an electrical connector assembly consists of receptacle and header connectors for mating with each other. Each connector has an insulative housing defining a number of passageways therethrough. The passageways receive a corresponding number of connecting modules therein. Each connecting module includes a printed circuit board having two opposite faces each having a number of circuit traces thereon. Two copper striplines are integrally disposed in the printed circuit board between the two faces and connected to grounding circuit traces. An insulative layer is integrally disposed in the printed circuit board between the two copper striplines. A number of receptacle contacts are soldered to the two faces of each printed circuit board of the receptacle connector near a first side thereof. A number of eye-of-needle compliant pin contacts are soldered to the two faces of each printed circuit board of the receptacle connector near a second side thereof. Each receptacle contact is electrically connected with a corresponding compliant pin contact via a corresponding circuit trace. A number of pins are soldered to the two faces of each printed circuit board of the header connector near a first side thereof. A number of compliant pin contacts are soldered to the two faces of each printed circuit board of the header connector near a second side thereof. Each pin is electrically connected with a corresponding compliant pin contact via a corresponding circuit trace. The pins engage with the receptacle contacts. The compliant pin contacts are used for electrically connecting with electrical devices, such as a backplane for the receptacle connector and a daughter board for the header connector.
REFERENCES:
patent: 5647768 (1997-07-01), Messuri et al.
patent: 5795191 (1998-08-01), Preputnick et al.
patent: 5993259 (1999-11-01), Stokoe et al.
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Paumen Gary F.
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