Multipin plug for the joint electrical contacting of a plurality

Details Multipin plug for the joint electrical contacting of a plurality Multipin plug for the joint electrical contacting of a plurality

1991-10-09

1992-10-13

Desmond, Eugene F.

Electrical connectors

Multicontact internal combustion engine distributor cap or...

123470, H01R 13447

Patent

active

051546221

DESCRIPTION:

BRIEF SUMMARY
PRIOR ART

The invention is based on a multipin plug of type set forth in DE-OS 37 30 571. The German patent already discloses a device in which the fuel injection valves are received in individual receiving openings of a fuel distributor element and are jointly electrically contacted by means of a multipin plug. A number of plug housings, corresponding to the number of fuel injection valves, in which first electrically conductive contacting elements which can be connected to second electrically conductive contacting elements of the fuel injection valves are arranged rigidly connected to the multipin plug. Since the receiving openings in the fuel distributor element, the receptacles of the plug housings in the multipin plug and the first electrically conductive contacting elements mounted in the plug housings and the second electrically conductive contacting elements of the fuel injection valves have shape and position tolerances, when connecting the multipin plug to the fuel injection valves, an offset occurs between the second electrically conductive contacting elements of the fuel injection valves and the first electrically conductive contacting elements of the plug housings arranged in the multipin plug. If the multipin plug, the fuel distributor element and the plug housings are formed from plastic, particularly large shape and position tolerances due to manufacture are to be expected. There is then the risk during assembly of a deformation or damaging of the first electrically conductive contacting elements and of the second electrically conductive contacting elements and/or of the multipin plug, the plug housings and/or the fuel injection valves. Reliable functioning of the known device after the connection of fuel injection valves and multipin plug is therefore then not guaranteed. In addition, the offsets between the second electrically conductive contacting elements of the fuel injection valves and the first electrically conductive contacting elements of the multipin plug lead to a requirement for high joining forces between the contacting elements.


ADVANTAGES OF THE INVENTION

The multipin plug according to the invention has, in contrast with the above, the advantage that the plug housings which are mounted in the multipin plug in a floatingly movable manner in the horizontal and in the vertical direction permit a compensation of the shape and position tolerances between the jointly contacted, electrically excitable elements and the multipin plug. The plug housings which are still movable after mounting in the multipin plug can thus be aligned in accordance with the position of the second electrically conductive contacting elements of the electrically excitable elements in the multipin plug. As a result, a connection of the multipin plug, having the plug housings, to the electrically excitable elements is produced with relatively small deformations and joining forces between the first electrically conductive contacting elements of the multipin plug and the second electrically conductive contacting elements so that damage during the joining process both to the multipin plug and to the electrically excitable elements is effectively prevented.
A device with the features set forth herein permits a joint electrical contacting of fuel injection valves arranged in a fuel distributor element with the advantages already specified previously. The offsets occurring due to shape and position tolerances and as a result of the receiving openings of the fuel distributor element, the fuel injection valves, the first and the second electrically conductive contacting elements and the plug housings are compensated by the plug housings which are mounted in the multipin plug in a floatingly movable manner in the horizontal and in the vertical direction.
By means of the measures specified, advantageous further developments and improvements of the multipin plug disclosed are possible.
In order to construct a plug housing which is floatingly movable in the multipin plug in the horizontal and in the vertical direction

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