Electrical connectors – Including or for use with coaxial cable – Having means for interconnecting outer conductors of three...
Patent
1997-12-23
1999-05-25
Abrams, Neil
Electrical connectors
Including or for use with coaxial cable
Having means for interconnecting outer conductors of three...
439 761, H01R 1706
Patent
active
059065125
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a connection assembly of an electronics box, the box having coaxial connectors.
2. Summary of the Prior Art
In applications such as satellite data reception systems, parabolic antennas capture and concentrate signals which are distributed to a plurality of receivers, for example to different apartments in a building. The signals received by the antenna are typically processed by an electronics module that separates the incoming signal into a plurality of signals. The separate signals may be carried by individual coaxial conductors, either for carrying a plurality of different signals, or for branching the signals to further electronic processing stations that distribute the signals to the various receivers. The electronics module thus requires a plurality of coaxial connections that interconnect the electronic circuitry therein to coaxial supply leads. Such an electronics box typically has an outer housing with a conductive shielding material, the housing may in fact be fully conductive such as die cast metal. It is known to provide a coaxial connector projecting from an edge of the housing, where the housing has a cylindrical projection extending therefrom that forms the outer conductor of the coaxial connector. A cylindrical dielectric part is placed within the tubular outer protrusion, and holds an inner conductor. The outer conductor is interconnected to ground circuit traces of the electronics modules which typically comprise printed circuit boards (PCBs) with components thereon. The coaxial connection typically has to be connected to the PCB.
For many applications, it is important to produce a very cost-effective electronics module. A major cost of many electronics components is due to assembly of the components, in particular if manual operations are required, for example fitting together of the parts or soldering contacts or components. It is nevertheless necessary to achieve a reliable electronics box that has effective shielding against electro-magnetic or electro-static noise reception or emission. It is also important to ensure that a reliable electrical connection can be made to the electronics box. It would be desirable to simplify assembly operations, and in particular automate assembly operations as far as possible.
SUMMARY OF THE INVENTION
From U.S. Pat. No. 3,983,457 there is known an assembly which is suitable from an electronics box and has a housing and a printed circuit board. The housing has a base wall and side walls forming a cavity area receiving the PCB. Two seizure posts are provided proximate an edge of the PCB for electrical and mechanical connection to coaxial centre conductors of in coaxial cable extending transversely to a direction of assembly of the PCB into the housing.
It is an object of this invention to provide a coaxial connection assembly for an electronics box that is cost-effective and reliable.
It is a further object of this invention to provide an electronics box connection assembly for interconnecting coaxial connectors to PCBs of the electronics module in a reliable and effective manner that is also cost-effective to assemble.
Object of this invention have been achieved by providing a connection assembly according to claim 1. Disclosed herein is an electronics box connection assembly having a housing with conductive shielding or ground, and at least one coaxial connector having a mating face at the outside of the housing for connection to a complementary coaxial connector, and an inner end for connection to a circuit board of the electronics module, wherein the board has at least one terminal mounted proximate an edge of the board that is plugged into the centre conductor of the coaxial connector. The housing may comprise a base plate and side walls, where the coaxial connectors are mounted in the side walls and the base plate is substantially parallel to the circuit boards. The base plate would face an open end of the housing where the boards are received in a direction substa
REFERENCES:
patent: 4094574 (1978-06-01), Gunn
patent: 4226495 (1980-10-01), Palle et al.
patent: 4559421 (1985-12-01), Lapke et al.
patent: 5677578 (1997-10-01), Tang
patent: 5766026 (1998-06-01), Cooper et al.
patent: 5814905 (1998-09-01), Tang
Abrams Neil
Ness Anton P.
Nina Driscoll A.
The Whitaker Corporation
Zarroli Michael C.
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