Electrical connectors – Electromagnetic or electrostatic shield – Multi-part shield body
Patent
1993-04-29
1994-05-31
Paumen, Gary F.
Electrical connectors
Electromagnetic or electrostatic shield
Multi-part shield body
439609, 439108, H01R 13658
Patent
active
053165012
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a multipole plug connector having plug contact elements and connecting elements on the rear side for incoming leads, the plug connector and the connecting elements being surrounded by an earthed shielding jacket, with the exception of the insertion side.
It is known for such plug connectors to be sheathed with shell-like housing halves composed of deep-drawn sheet metal. In this case, it is normal to connect the shielding jacket to earth potential.
It is furthermore known, for example from the German Utility Pattern Patent 8,911,590 (corresponding to European Patent reference 0,412,331 Al) to arrange separate shielding plates on both sides of the printed-circuit board and of a plug body in the case of a plug connector which is placed on a printed-circuit board, the rear sides of which shielding plates are bent towards the printed-circuit board and are provided with stamped-free insertion pins which are pressed into solder eyes in the printed-circuit board. Feathered ground plates are placed on contact pins on the rear wall of the assembly, which ground plates have a bulge which extends in their longitudinal direction and in whose region lateral slots are arranged. These bulges catch the shielding plate of the plug-on plug connector, subject to spring tension.
SUMMARY OF THE INVENTION
The invention is based on the object of achieving a maximum shielding effect using a shielding jacket which can be produced cost-effectively.
This object is achieved by means of a multipole plug connector having plug contact elements and connecting elements on the rear side for incoming leads. The plug connector and the connecting elements are surrounded by a shielding jacket, with the exception of the insertion side. The shielding jacket is produced from at least one feathered shielding plate which is in the form of a strip, is provided with lateral slots and is bent around the plug connector and the connecting elements in an overlapping manner. The overlapping ends of the shielding plate are connected to one another such that they make contact. In the region of the lateral slots, corresponding bending edges of the shielding plates lie along the side edges of the plug connector extending in the insertion direction. The shielding jacket can now be produced cost-effectively, from a shielding plate strip which is supplied as strip material. The strip is cut to size such that not only the longitudinal side and the rear side but also the ends of the plug connector are surrounded. At the same time, care must be taken to ensure that the ends of the shielding plate overlap so that they can make contact with one another. Since the shielding plate is now constructed to be sprung in its feathered region, it requires no mating plates which are held on the assembly rear wall. The shielding plate can thus make direct contact with the contact pins on the rear wall, in a sprung manner. In this case, care must be taken to ensure that the bends in the shielding plate lie along the side edges of the plug connector in the region of the lateral slots, so that, despite the bulges, the shielding plate can be bent smoothly around the side edges. The plug connector is shielded to a maximum extent by the overlaps and by the fact that they make contact.
Advantageous developments of the present invention are as follows.
The development, wherein the shielding plate has overlapping regions on the rear side of the plug connector, facing away from the insertion side, prevents gaps, which would have an adverse effect on the shielding effect, being produced in the region of the rearward side edges of the shielding plate.
The development, wherein in the extended state, the shielding plate is provided with a bulge, which extends in the longitudinal direction of the shielding plate and has a large number of lateral slots whose pitch is equal to the pitch of the contact springs, makes it possible for in each case one spring tongue of the shielding plate to make contact with a grounded contact pin on
REFERENCES:
patent: 4959024 (1990-09-01), Czeschka
patent: 5066236 (1991-11-01), Broeksteeg
patent: 5080597 (1992-01-01), Seidel et al.
patent: 5104329 (1992-04-01), Brown et al.
patent: 5104341 (1992-04-01), Gilissen et al.
patent: 5130896 (1992-07-01), Babb et al.
patent: 5141445 (1992-08-01), Little
patent: 5160272 (1992-11-01), Zell et al.
Paumen Gary F.
Siemens Aktiengesellschaft
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