Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electrical power distribution systems and devices
Patent
1998-02-13
2000-03-07
Thompson, Gregory
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electrical power distribution systems and devices
H02B 100
Patent
active
060348658
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to an arrangement for connecting power supply lines to an electronic device and a cubicle containing such an arrangement.
BACKGROUND INFORMATION
A conventional cubicle containing an arrangement for connecting power supply lines to an electronic device is described in German Patent Application 93 11 526, where the cubicle rack, consisting of longitudinal and transversal rails, of an automation system is described. Subracks provided with components, for example, digital input and output components, are mounted into the rack. Busbars run vertically on the right-hand longitudinal rail and are connected to a circuit board arranged vertically on the lower part of the longitudinal support and provided with power supply diodes for isolating the supply voltages if a redundant power supply is used. The circuit board is connected, via flexible conductors, to a terminal arrangement consisting of terminals connected in series, arranged side-by-side horizontally and attached to a standard receiving body. The shortcomings of the conventional device include the voluminous design, the relatively high cost of commercially available terminals, relatively high power loss due to the terminal connections on the flexible conductors and due to the electrical resistance of the conductor itself, which can only be reduced by designing the conductor with a suitably large cross section. Also, in the known device, additional terminals must be installed in order to supply additional electronic devices in parallel.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an arrangement for connecting power supply lines to an electronic device and a cubicle with such an arrangement that reduced-loss connection of the power supply lines in a compact design.
An advantage of the present invention is that a high-current connection is implemented, for example, for a 24 VDC power supply, for line cross sections of 16 mm.sup.2 to 95 mm.sup.2 for an electronic device. The present invention further allows a redundant current supply connection with two supply voltage lines and two ground lines, the possibility of a redundant connection of an extension device to be supplied in parallel, a very low-loss connection to the internal current distribution system of the devices, an EMC-compliant integration of an input filter for planar or neutral grounding, visual monitoring of the power supply contact points, safe monitoring and tightening of the energized contact points, safe disconnection of the energized load with no effect on the devices supplied in parallel, safe disconnection of the energized redundant supply potentials for simplified troubleshooting with no effect on the devices supplied in parallel, and a layout with no crossing of the power supply lines directly in the connection zone of the electronic device. In conventional devices, previously EMC-compliant integration of input filters had to be designed with additional large-surface connecting elements. Also, an advantageous arrangement of the filter directly on the terminals was not possible with the conventional devices. Furthermore safety reasons, an electronic device could only be disconnected previously with the main fuse turned off. As a result, all devices supplied in parallel had to be turned off. Furthermore the on-line diagnosis of an electronic device with a central supply was not possible with conventional devices. These disadvantages are avoided by the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a schematic diagram of an arrangement according to the present invention.
FIG. 2 shows a front view of the arrangement with the cover.
FIG. 3 shows a front view of the arrangement with the cover removed.
FIG. 4 shows a rear view of the arrangement.
FIG. 5 shows an embodiment of a terminal of the arrangement.
DETAILED DESCRIPTION
FIG. 1 shows four rigid electric conductors 2 inserted side-by-side into a plastic body 1. An end of each of the rigid electric conductors 2 is designed as a t
REFERENCES:
patent: 3327176 (1967-06-01), Rexroad
patent: 5046172 (1991-09-01), Moreux et al.
patent: 5272592 (1993-12-01), Harris et al.
patent: 5274528 (1993-12-01), Noschese et al.
patent: 5351165 (1994-09-01), Hancock
Roster Thomas
Schmitt Reinhard
Siemens Aktiengesellschaft
Thompson Gregory
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