Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – For receiving coaxial connector
Patent
1998-05-22
1999-11-23
Nguyen, Khiem
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
For receiving coaxial connector
439581, H01R 909
Patent
active
059890380
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector, for connecting a cable to a circuit board.
2. Description of Related Art
A cable such as a RF coaxial cable forming an antenna lead, for example, may be connected to a circuit board either through direct soldered connections to the inner and outer conductors or, where a non-permanent connection is desired, via a terminating connector on the cable which is insertable into a suitable receptacle connector soldered to the board. The former type of connection suffers from the disadvantage that the connection is permanent and is difficult to repair particularly where the connection is made to a larger assembly, whereas the latter type presents difficulties in achieving reliable connections, particularly where good grounding is required. In either case the assembly of a component incorporating either type of connection is time consuming, difficult and consequently expensive to perform.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide an improved electrical connector which overcomes the disadvantages of the prior art and in particular which is inexpensive and simple to construct.
According to the present invention, there is provided an electrical connector for attachment to a circuit board to establish a connection between said circuit board and a coaxial cable connector, comprising an electrically conductive housing for attachment to said circuit board and including an outer connector portion for engagement with an outer conductor portion of said cable connector, a central conductor element having two limbs joined by an elbow, and an insulator assembly comprising a plurality of members of insulating material shaped for interengagement to enclose said central conductor element in the region of said elbow, the said housing being so arranged to receive said insulator assembly and the central conductor element that with one limb of said central conductor located by said assembly in coaxial relationship with said outer connector portion of the housing for engagement with an inner conductor of said cable connector, the other limb is presented for attachment to the circuit board.
Preferably, a pair of insulating members are shaped for sliding interengagement to enclose respectively the limbs of the central conductor. Advantageously, the insulating members are shaped such that in order to facilitate retention of the assembly by the housing, one member must first be located by the housing whilst the other member is slidingly engaged thereon. The insulating members may be formed with surfaces which are flush with the surface of the circuit board when engaged in order that the assembly is held by the board against disengagement.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to more fully understand the invention, a specific embodiment thereof will now be described by way of example and with reference to the accompanying drawings, in which:
FIG. 1 is a plan view of a cable mating insulator block of a connector according to the invention, shown with a central conductor inserted therein;
FIG. 2 is a front elevation of the insulator block of FIG. 1, again showing the central conductor;
FIG. 3 is a rear elevation of the insulator block of FIG. 1, showing the central conductor;
FIG. 4 is a plan view of board mating insulator block of a connector according to the invention;
FIG. 5 is a front elevation of the insulator block of FIG. 4;
FIG. 6 is an underside view of the insulator block of FIG. 4;
FIG. 7 is an underside view of a partially assembled antenna matching element showing the assembled connector in position thereon;
FIG. 8 is a similar view to that of FIG. 7 showing a fully assembled matching element; and
FIG. 9 is a cross-sectional side view of the element of FIG. 7 at an intermediate stage in the assembly of the connector thereon.
FIG. 10 is a block diagram of an antenna matching circuit with a glass mount antenna.
FIG. 11 is a cross section taken along line A--A of FIG
REFERENCES:
patent: Re36065 (1999-01-01), Andrews et al.
patent: 3201722 (1965-08-01), May et al.
patent: 4710138 (1987-12-01), Bradley et al.
patent: 4857017 (1989-08-01), Erk
patent: 5046952 (1991-09-01), Cohen et al.
patent: 5062811 (1991-11-01), Hackman
patent: 5842872 (1998-12-01), Hosler et al.
Jesman Andrew
Jesman Christopher
Nguyen Khiem
Patel T C
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