Electrical connectors – Metallic connector or contact having part permanently...
Patent
1998-10-22
2000-05-23
Paumen, Gary F.
Electrical connectors
Metallic connector or contact having part permanently...
439736, H01R 402
Patent
active
060660104
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a cable connector having an insulation body and having a plurality of electrical contact tracks which are fixed in the insulation body. Each contact track has an end on the plug side, which is designed as a contact element for producing an electrical contact with a mating connector, and has an opposite end, which is designed as a solder connection for a cable conductor.
Such plug connectors have also been disclosed and are of interest, in particular, in the context of the standardized USB (Universal Serial Bus) concept which is the aim of a number of computer manufacturers. This new bus system relates in principle to the connections of peripherals to a PC no longer being carried out, as in the past, via individual parallel connections with separate and frequently different connector systems, but by the peripherals essentially being connected in serial to a common bus line which is directly connected to a printed circuit board (motherboard) in the PC via a standardized plug socket on the housing of the PC. The plug face of the printed circuit board plug socket or receptacle has essentially already been defined by a specification and has four contact springs which are located in a plane alongside one another, are in the form of a strip and, when the bus plug is inserted, interact and produce the electrical contact with the four contact rails or tracks which are arranged in the plug and are located alongside one another. The contact springs are arranged in the female connector in an insulation body which essentially has a plastic tongue having a rectangular cross-section, and are bent in their rear region to form connecting legs which point away downwards and can be inserted into contact holes in the printed circuit board. The connector and mating connector are normally provided with a metallic screening housing. Two latching hooks are provided in each case in the top region and bottom region of these screening plates, engage in cutouts on the screening housing of the matching mating connector, and produce the retaining forces when the plug is withdrawn and the earthing contact.
The solder connections of the previous cable connectors are normally designed as flat sheet-metal elements which project out of the insulation body and are accordingly essentially not touched or supported by the insulation body. This known solution has both design and thermal disadvantages.
SUMMARY OF THE INVENTION
The present invention is based on the object of improving the known cable connector, with regard to the indicated disadvantages.
In the case of a cable connector of the type mentioned initially, this object is achieved in that the solder connection has a V-shaped cross-section, and its rear side, which faces away from the cable conductor, is embedded in the insulation body by extrusion coating with plastic.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective partial view of a cable connector according to the invention, whose solder connections have not yet been provided with cable conductors, and
FIG. 2 is a partial perspective view from the rear side of the solder connections of the cable connector according to FIG. 1, and the solder connections have not yet been embedded in the insulation body.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 shows an insulation body 1 which is injection moulded from plastic material and in which, for example, four contact tracks 2, which are located along-side one another, are embedded (only three can be seen). The contact elements of the contact tracks have been omitted in the chosen illustration in the lower part of the figure.
The V-shape channel with a concave surface and a convex surface of the solder connections according to the invention is best seen in FIG. 2. The V-shape of the solder connections has the advantage that a larger wetting area of the concave surface is available when soldering the cable conductors which must be inserted lengthwise into the solder connections 4 from above in FIG. 1. The cable conduc
REFERENCES:
patent: 4772228 (1988-09-01), Seymour
patent: 4781620 (1988-11-01), Tengler et al.
patent: 4854894 (1989-08-01), Harrell
patent: 4920642 (1990-05-01), Yanai et al.
patent: 5120268 (1992-06-01), Gerrans
patent: 5330372 (1994-07-01), Pope et al.
Paumen Gary F.
Siemens Aktiengesellschaft
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