Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1996-09-27
1998-03-24
Picard, Leo P.
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361728, 361736, 361755, 439 55, 439 51, 439 59, H05K 714
Patent
active
057319618
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a receiving device for component parts which are directly connected with a printed circuit board.
In the development of electronic systems, in particular of data processing systems, a tendency toward a modular design is obvious. Functionally related components are combined in one assembly, if technically realizable. As far as technically feasible, such assemblies are connected with a circuit board by means of a connector. The advantages obtainable due to such a modular approach are to be recognized in the reduction of the plurality of connecting cables between the various components among one another, and in the plurality of connecting cables between the component parts and the circuit board. A reduction of the plurality of connecting cables has the advantage of largely reducing also electromagnetic interactions between such electric connecting leads. Signal errors may thereby largely be excluded. The modular approach has, i.a., the further advantage that complex electronic systems can be produced, tested and maintained in a much simpler way.
One problem encountered in that modular design is, however, that heavy assemblies cannot be connected directly with the circuit board without problems. Because there is a heavy load on the connector between the assembly and the circuit board due to the weight of the assembly, so that the contacts within the circuit board may become destroyed in the course of time. This is in particular true in case that the system is exposed to vibrations or oscillations.
Patent Document P 36 03 750.8 describes an automation device consisting of a central unit and of the input and output assemblies and the assembly carriers which are snapped-on to the mounting rail. The assembly carrier consists of a bottom part and a cover part to which coding disks are rotatably held in the way of a coding clock. In the bottom part a switching circuit board is attached. Socket connectors are attached on the switching circuit board for being connected with the plug connectors of the input or output assemblies respectively and are electrically connected therewith.
It is therefore an object of the present invention to realize a receiving device for assemblies which are directly connected with the circuit board, which permits to connect the assemblies with the circuit board regardless of their weight, without damages occurring in the contacts with the circuit board, such device being simple and inexpensive in production and assembly and not limiting the modular approach.
Said problem is resolved by the characteristics as mentioned in the main claims.
Further advantageous embodiments of the device according to the invention are resolved in the subclaims.
Advantages obtained due to the invention are to be seen essentially in that it is possible to directly connect nearly any assembly of the system regardless of its weight directly with the circuit board. This does away with superfluous electric connecting leads between the individual component parts and the circuit board. Signal transfer errors--caused by neighboring connecting leads--are largely reduced.
In the following, the invention will be explained in further details taking reference to a preferred embodiment thereof with the accompanying drawings, wherein
FIG. 1 shows a casing of a data processing system in which the receiving device according to the invention is preferably used,
FIG. 2 shows a component part in connection with the circuit board and the device according to the invention,
FIG. 3 is an exploded view of a component part which is decoupled as to its weight from the circuit board due to the device in accordance with the invention;
FIG. 4 shows a circuit board as preferably used in the device according to the invention.
FIG. 1 shows the casing 2 of a data processing system in which the device according to the invention is preferably used. The casing 2 comprises components, the so-called power supply modules 4 consisting of an electronic board 12, in particular a logic board, and batteries. The power suppl
Bernhardt Hermann
Haumann Johann
Klein Gunter
Notter Frank
Dinkins Anthony
Fraley Lawrence R.
International Business Machines - Corporation
Picard Leo P.
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