Multiple pole connector with shield plate

Details Multiple pole connector with shield plate Multiple pole connector with shield plate

1999-05-20

2001-07-03

Patel, Tulsidas (Department: 2839)

Electrical connectors

Electromagnetic or electrostatic shield

Shielding individually surrounding or interposed between...

C439S108000

Reexamination Certificate

active

06254433

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to multiple pole connectors with a shield plate or plates.
2. Description of the Related Art
Japanese patent application Kokai No. 8-321358 discloses a multiple pole connector with a shield plate. This connector comprises a ground plate consisting of a ground plate body section (functioning as a central shield plate) and a ground plate contact section (functioning as ground connection section) and a plurality of signal terminals provided either side of the ground plate boy section. The ground plate contact section (ground connection section) is connected to the ground of a board to not only prevent electromagnetic interference produced by the signal terminals but also support the ground plate body section.
Frequently, it is necessary for the multiple pole connector to change the number of signal terminals. In the above connector wherein the ground plate body section and the ground plate contact section are integrated as a unit, it is difficult to change the number of signal terminals or develop the number of poles (called “pole number development”) because the integral structure of the ground plate body and contact sections is complicated. It is necessary to make complicated components in accordance with the pole number development. Since the shield plate is provided only at the center of the connector, the connector has poor ground performance and is vulnerable to electromagnetic interference.
Unlike the above connector, a connector comprising only a pair of outer shield plates without the central shield plate has been developed. This connector, however, has also poor ground performance.
A connector comprising a number of through-holes provided in the central row of a board for connection with the shield plate has been developed. This connector, however, requires a large number of through-holes formed in a narrow area of a board in accordance with the shape of a connector, requiring complicated work.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the invention to provide a multiple pole connector by which the pole number development is made easy.
It is another object of the invention to provide a multiple pole connector having excellent ground performance and resistant to electromagnetic interference.
It is still another object of the invention to provide a multiple pole connector by which ground connection is made possible without through-holes in a board.
According to one aspect of the invention there is provided a multiple pole connector with a shield plate, comprising a central shield plate provided at a center of and along a length of the connector; and a metal support connected to the central shield plate for electrical connecting the central shield plate to a ground of a board.
According to another aspect of the invention there is provided a multiple pole connector with a shield plate, comprising a central shield plate provided at a center of and along a length of the connector; an outer shield plate provided outside of the central shield plate along the length of the connector; and a metal support for electrically connecting the central shield plate to the outer shield plate.
According to one embodiment of the invention, the outer shield plate is electrically connected to a ground of a board.
According to another embodiment of the invention, the metal support is electrically connected to a ground of a board.
According to still another embodiment of the invention, the metal support is fixed to the connector and soldered to a board to thereby reinforce the connector.


REFERENCES:
patent: 4767342 (1988-08-01), Sato
patent: 4889959 (1989-12-01), Taylor et al.
patent: 5195899 (1993-03-01), Yatsu et al.
patent: 5913690 (1999-06-01), Dechelette et al.
patent: 8-321358 (1996-12-01), None

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