Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – Distinct contact secured to panel circuit
Reexamination Certificate
1999-12-17
2001-05-15
Paumen, Gary F. (Department: 2833)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
Distinct contact secured to panel circuit
C439S101000
Reexamination Certificate
active
06231355
ABSTRACT:
1. Field of the Invention
The present invention relates to an electrical connector, and particularly to a matched impedance connector having retention device on a grounding plane thereof.
2. Description of the Prior Art
Signal transmission with a signal line is very keen to the performance of a computer. When the signal transmission speed becomes faster and faster, EMI shielding becomes more and more important to prevent cross talk between two adjacent signal lines. For example, the conventional flat flexible cable (FFC) is configured with a plurality of conductive wires which are connected side-by-side. In order to prevent the cross talk between two adjacent conductive wires, every two conductive wires are spaced by a ground conductive wire.
U.S. Pat. No. 5,199,885 discloses a certain type of connector (tradename: MICTOR, manufactured by AMP Incorporated) which can be used with a micro-coaxial cable. The Mictor connector contains two rows of signal contacts and a grounding bus is disposed therebetween. The Mictor connector can be arranged to 1) a straddle-mount type; and 2) vertical mount for different application. The straddle-mount connector can be used to connect with a micro-coaxial cable, while the vertical type is mounted on a printed circuit board for mating with a complementary Mictor connector. Generally, the vertical type Mictor connector includes a plurality of terminal tails extending in a direction parallel to the printed circuit board, while the grounding legs extend perpendicular to the printed circuit board.
While performing surface mount process to the vertical type connector, the terminal tails shall be accurately aligned with conductive leads on the printed circuit board. In addition, the connector shall be fixedly positioned to ensure the alignment between the high-density terminal tails and the conductive leads.
In addition, coplanarity of the terminal tails of the terminals is also vital to the surface mount process. If the terminal tails are not coplanar, defective connections will be experienced.
SUMMARY OF THE INVENTION
An objective of this invention is to provide an electrical connector with improved retention device for accurately and fixedly positioning the connector on a printed circuit board during reflowing process.
In order to achieve the object set forth, an electrical connector in accordance with the present invention comprises a die cast housing defining a receiving space therein. A connector insert is inserted into the receiving space and includes a first half integrally formed therewith a plurality of first terminals, and a second half mated with the first half and integrally formed with a plurality of second terminals which are symmetrically aligned with the first terminals. Each of the first and second terminals includes a body portion enclosed within the corresponding block, and a mating portion extending beyond the block and a tail portion extending opposite the mating portion. Retaining posts and recesses are formed between the first and second blocks to fixedly secure the first and second blocks together. A grounding bus is sandwiched between the first and second blocks. The ground bus includes a plurality of pin legs having a needle-eye thereon.
These and additional objects, features, and advantages of the present invention will become apparent after reading the following detailed description of the preferred embodiments of the invention taken in conjunction with the appended drawings.
REFERENCES:
patent: 4781604 (1988-11-01), Sadigh-Behzadi et al.
patent: 5004427 (1991-04-01), Lindeman
patent: 5199885 (1993-04-01), Korsunsky et al.
patent: 5516307 (1996-05-01), Cartesse et al.
Juntwait Eric
Trammel John D.
Chung Wei Te
Hon Hai - Precision Ind. Co., Ltd.
Paumen Gary F.
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