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DC switch

A direct current and switching technology, applied in electrical switches, high voltage/high current switches, circuit breakers with excessive current, etc., can solve problems such as fire, failure of electronic equipment, total loss, etc.

Active Publication Date: 2018-03-20
EATON IND (AUSTRIA) GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example switching on DC with the aid of an AC switch may result in its total loss even if the voltage and current are well below the maximum AC-power limit of the associated AC switch
In addition to the failure of electronic equipment, this can also cause a fire

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Figures 1 to 5 A particularly preferred embodiment of a direct current switch 1 or parts of an arc quenching device 6 of such a direct current switch 1 is shown, wherein the direct current switch 1 has at least one electrical input 2 and at least one electrical output 3 and has at least one second A switch contact 4 and a movable jumper 20, wherein the DC switch 1 also has an arc extinguishing device 6, wherein the arc extinguishing device 6 has at least one first arc extinguishing chamber 7, which includes a plurality of arc extinguishing plates 9, wherein The first quenching plates 27 of these quenching plates 9 are shaped, in particular bent, in such a way that on the arc 11 caused by the switching process in the first quenching chamber 7 the Lorentz force 12 is respectively along the arc of the quenching plates 9 Direction plays a role.

[0016] This makes it possible to create a direct current switch 1 which has a high switching capacity in direct current and whi...

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PUM

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Abstract

In a DC switch (1) having at least one electrical input (2) and at least one electrical output (3) and having at least one first switch contact (4) and a movable jumper (20), Wherein the DC switch (1) also has an arc extinguishing device (6), wherein the arc extinguishing device (6) has at least one first arc extinguishing chamber (7), which contains a plurality of arc extinguishing plates (9), it is suggested that these extinguishing At least one first quenching plate (27) of the arcing plates (9) is shaped, in particular bent, in such a way that a Lorentz force in the first quenching chamber (7) occurs on the arc (11) caused by the switching process (12) respectively act along the direction of the arc extinguishing plate (9).

Description

technical field [0001] The invention relates to a DC switch according to the preamble of patent claim 1 . Background technique [0002] Switches for switching on direct current are known. However, the application of direct current has for a long time been generally limited to a small power range, in which there are hardly any problems when switching on direct current. [0003] Since solar photovoltaics and powerful battery backup systems are widely used in EDV-servers, DC and DC voltages of higher voltage and power also need to be switched on. Here, the known AC switches have proven to be unsuitable in many respects. For example switching on direct current by means of an alternating current switch may result in its total loss even if the voltage and current are well below the maximum alternating current-power limit of the relevant alternating current switch. In addition to failure of electronic equipment, this can also cause a fire. Contents of the invention [0004] I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/34H01H33/08H01H73/04H01H9/36
CPCH01H9/36H01H33/08H01H73/045
Inventor H·海德
Owner EATON IND (AUSTRIA) GMBH