Electrical connectors – Electromagnetic or electrostatic shield – Shielding individually surrounding or interposed between...
Reexamination Certificate
1999-05-03
2001-09-04
Paumen, Gary (Department: 2833)
Electrical connectors
Electromagnetic or electrostatic shield
Shielding individually surrounding or interposed between...
C439S607560
Reexamination Certificate
active
06283791
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an EMI shielded connector of a hub, more particularly to a shield device equipped on a connector of a hub for shielding electromagnetic interference (EMI).
Computer networks have become a part of our daily life in recent years. We can almost get access to every kind of information via the network. Therefore, setting up and constructing a network is necessary in computerized process. Moreover, local area networks (LANs) have been widely utilized in many corporations to make communications more convenient.
Hubs are required when constructing a network. A hub presents the center for signal exchanging. Analog and digital signals can be transmitted, connected regenerated, or amplified via a hub. There are some advantages for using a hub. First, the quality of the network can be highly improved. Second, there is less influence on the sequential nodes of the network when one transmission line of the local area network is disconnected. Therefore, it is important to prevent the signals from interference after the transmission of the signals.
Most electric appliances, especially high frequency appliances such as the signal transmission apparatus, are typically equipped an EMI shield device to prevent signals from the electromagnetic wave or radio frequency interference as to keep good transmission quality. However, there is still no such a design for hubs. Nevertheless, the specification of the frequency bandwidth for transmitting signals of a hub has been improved from 10M Hz to 100M Hz. It is time to take the electromagnetic interference into consideration in designing hubs.
SUMMARY OF THE INVENTION
Therefore, the object of the present invention is to provide an EMI shielded connector of a hub.
The main consideration of the EMI technology is not only in providing a shield effect but also involving the shielded object and the grounding. Thus we have to make an integral design so that we can easily assemble and disassemble the shield device from the connector of the hub and so as not to substantially increase the cost.
Accordingly, the EMI shielded connector of the present invention includes a connector body having a plurality of pins for connecting to the hub and a socket for receiving terminals, and a shield device, which contains means for fixedly clasping the connector body and means for grounding the hub, mounted on the connector body but exposing the socket to shield the connector body form electromagnetic interference.
The shield device mentioned above is made by a unit of metal sheet. The clasping means is a part of the metal sheet, which fixedly clasps the connector body. Moreover, a first protrusion part contacts the terminal and a second protrusion part contacts the case of the hub so that the shield device is conductively connected to the ground. The first protrusion part and the second protrusion part are also part of the metal sheet.
REFERENCES:
patent: 5766041 (1998-06-01), Morin et al.
patent: 5788538 (1998-08-01), Belopolsky et al.
patent: 6012948 (2000-01-01), Wu
patent: 6086421 (2000-07-01), Wu et al.
Accton Technology Corporation
Birch & Stewart Kolasch & Birch, LLP
Gushi Ross
Paumen Gary
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