Schaltbau Gmbh

Korbinian Kreuzpointner

Andrej Ignatov

Johannes Schmid

Robert Kralik

Daniel Hammerl

Martin Geschke

Switching device with closable contacts and an extinguishing chamber which is associated with the contacts and has a first extinguishing area and a second extinguishing area arranged directly adjacent to the first extinguishing area, the first extinguishing area and the second extinguishing area being spatially separated from each other by a partition wall, and the switching device being configured in such a way that a switching arc which is generated when opening the contacts is always blown away from the point where it is generated in one of the two extinguishing areas by means of an arc blowing means of the switching device and is caused to be extinguished, whereas the respective other of the two extinguishing areas is not used for extinguishing, characterized in that the partition wall between the first extinguishing area and the second extinguishing area has at least one overflow opening which connects the first extinguishing area to the second extinguishing area in such a way that plasma which is generated by the switching arc can flow from the extinguishing area in which the switching arc is caused to be extinguished into the respective other, unused extinguishing area.

Switching device with at least two intercommunicating extinguishing areas

The present invention refers to a switch device with at least one contact point, the contact point having a first contact and a second contact, the first and second contacts being spaced apart from one another in an open position and electrically contacting one another in a closed position, the contact point being assigned an arc blowout device for generating a magnetic blowing field, the blowout field being such that an arc produced when the contact point is opened is blown away from the contact point. In accordance with the invention, at least one of the two contacts is provided with a non-conductive cover on a non-contact-facing side which faces away from the other contact, which cover prevents a base point of the arc from crossing the non-contact-facing side.

Switch device with contact cover

The present invention relates to an arc chamber to extinguish electric arcs for a contactor with an extinguishing system, a blowing device which blows electric arcs into the extinguishing system, and a plurality of lamellar electric arc extinguishing elements between which flow channels are formed, wherein the flow channels each have a scattering section and wherein the scattering sections of adjacent flow channels are formed with different inclinations so that the blown air is deflected into different directions by the flow channels. The invention further relates to a contactor with such an arc chamber.

Arc chamber for a contactor and contactor to extinguish electric arcs

Disclosed is a DC contactor comprising a double break with two contact points, each having a fixed and a movable contact, the movable contacts arranged on a contact bridge. The contactor includes an arc extinguishing device and a blowing device configured to blow a switch arc, which forms at the first contact point when the contact points are being opened, into the arc extinguishing device, when switching takes place in the preferential current direction. A commutating plate is arranged adjacent the movable contact of the first contact point, the contact bridge and the commutating plate being electrically insulated from one another and the commutating plate being potentially connected to the fixed contact of the second contact point, so that, when switching takes place in the preferential current direction, the switch arc forming at the first contact point jumps from the contact bridge to the commutating plate by the blowing device.

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Schwaig, Germany

Korbinian Kreuzpointner