Device for matrix switching
AssigneeTelefonaktiebolaget LM Ericsson
InventorSture Roos
Life of this patent
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Abstract
The present invention relates to a switching device for optional connection of a number of incoming electrical lines with a number of outgoing electrical lines, where the incoming and outgoing lines each are connected to individual contact surfaces (34, 36, 38) respectively, that the contact surfaces are arranged in concentric ring-shaped areas, a manoeuvring unit arranged in the centre of said ring-shaped areas, drive means (14) capable of rotating said manoeuvring unit, a number of contact elements (44) arranged to said manoeuvring unit, whereby the manoeuvring unit is capable of positioning said contact elements for obtaining electrical contact between specific, chosen, contact surfaces.
Claims12
Switching device for optional connection of a number of incoming electrical lines with a number of outgoing electrical lines, where the incoming and outgoing lines each are connected to individual contact surfaces (34, 36, 38) respectively, that the contact surfaces are arranged in concentric ring-shaped areas, a manoeuvring unit arranged in the centre of said ring-shaped areas, drive means (14) capable of rotating said manoeuvring unit, a number of contact elements (44) arranged to said manoeuvring unit, whereby the manoeuvring unit is capable of positioning said contact elements for obtaining electrical contact between specific, chosen, contact surfaces.
Switching device according to any of the preceding claims, wherein the symmetrical body is arranged with a number of fastening means capable of releasably holding the contact elements in a number of positions around the circumference of the symmetrical body.
Switching device according to any of the preceding claims, wherein the manoeuvring unit is arranged with a number of fastening means capable of releasably holding the contact elements in a number of positions.
Switching device according to any of the preceding claims, wherein it further comprises a position sensing device (30, 32) capable of sensing the rotational position of the axially symmetrical body in relation to the cylindrical surface.
Switching device according to any of the preceding claims, wherein the drive means comprises a stepper motor.
Switching device according to any of the preceding claims, wherein the device comprises means for connecting to a further connection device and means for electrically connecting the number of incoming or outgoing lines of one device with the number of incoming or outgoing lines of the further device.
Dependencies are inferred from the claim text.