公开(公告)号：US11127542B2

公开(公告)日：2021-09-21

申请号：US16759216

申请日：2018-07-31

Applicant: Schaltbau Gmbh

Inventor： Robert Kralik ,  Daniel Hammerl

IPC: H01H9/44

Abstract: The present invention relates to an electrical switching apparatus having at least one contact point, an arc-quenching device associated with the contact point, and an arc-blowing device to generate a magnetic blowout field. The arc-quenching device comprises a plurality of quenching elements, which are arranged distributed and spaced from each other in a first direction, wherein the quenching elements each comprise a permanent magnet. The arc arising when the contact point is opened is blown away from the contact point towards the quenching elements by the magnetic blowout field. The magnetic blowout field is at least partially generated or supported by the permanent magnets of the quenching elements. According to the invention, the permanent magnets of the quenching elements are offset with respect to each other in a second direction that is perpendicular to the first direction.

公开(公告)号：US09799471B2

公开(公告)日：2017-10-24

申请号：US15300749

申请日：2015-01-22

Applicant: Schaltbau Gmbh

Inventor： Robert Kralik

IPC: H01H9/02 ,  H01H33/08 ,  H01H9/30 ,  H01H33/38

CPC classification number: H01H33/08 ,  H01H9/30 ,  H01H33/38 ,  H01H2009/305

Abstract: Disclosed is multipolar power contactor with an electromagnetic drive having an armature, and at least two movable contacts arranged next to one another and connected to the armature. The armature is movable from an open position, where the movable contacts and the fixed contacts are not in contact with one another, into a closed position where the movable contacts come into contact with the fixed contacts. Each movable contact and a corresponding fixed contact, is assigned an arc quenching device, and a plasma barrier having a first and a second barrier is provided between the two movable contacts, whereby one of the two barriers is connected to the armature and the other of the two barriers to a stationary part of the power contactor. The first and the second barrier overlap with one another at least partially in each position of the armature between the open and the closed positions.

公开(公告)号：US20170178831A1

公开(公告)日：2017-06-22

申请号：US15129614

申请日：2015-03-25

Applicant: SCHALTBAU GMBH

Inventor： Robert Kralik

IPC: H01H9/44 ,  H01H73/18 ,  H01H33/59 ,  H01H9/34 ,  H01H9/36

CPC classification number: H01H9/443 ,  H01H9/34 ,  H01H9/36 ,  H01H33/596 ,  H01H73/18

Abstract: The present invention relates to an electric switching apparatus, in particular a DC contactor. The switching apparatus has at least one switching point as well as at least one arc-quenching device that is assigned to the switching point. The arc-quenching device comprises at least one quenching element and at least one permanent magnet for influencing an arc that arises during the switching process. The arc is blown into the quenching element by a magnetic field that is created by the permanent magnet. It is provided according to the invention that the at least one permanent magnet forms at the same time the quenching element and that it is arranged and polarized in a way that the arc is attracted by the permanent magnet and thereby sucked onto the permanent magnet and quenched by said permanent magnet.

公开(公告)号：US10692671B2

公开(公告)日：2020-06-23

申请号：US16179778

申请日：2018-11-02

Applicant: Schaltbau Gmbh

Inventor： Robert Kralik

IPC: H01H1/20 ,  H01H9/34 ,  H01H9/36 ,  H01H9/44 ,  H01H9/46 ,  H01H33/08 ,  H01H50/54

Abstract: Switching devices having a contact point, and an arc extinguishing chamber are used to blow switch arcs. The arc extinguishing chamber may have an exit opening through which plasma, generated inside the switching device by a switch arc developing when the contact point opens, exits out of the switching device. Inside the extinguish chamber a first arc guide plate may be provided that extends from the contact point toward the exit opening and which guides and stretches the switch arc. The switch arc may be initially stretched beyond the dimensions of the exit opening by the first arc guide plate and then the stretching may be reduced to be within the dimensions of the exit opening by an arc guide pin projecting from the first arc guide plate.

公开(公告)号：US20190139728A1

公开(公告)日：2019-05-09

申请号：US16179778

申请日：2018-11-02

Applicant: Schaltbau Gmbh

Inventor： Robert Kralik

IPC: H01H33/08 ,  H01H9/36 ,  H01H9/46 ,  H01H9/44

Abstract: The present invention relates to a switching device comprising at least one contact point, an arc extinguishing chamber assigned to the contact point, and an arc blow device assigned to the contact point. The arc extinguishing chamber comprises an exit opening through which plasma, which is generated inside the switching device by a switch arc developing when the contact point opens, can exit out of the switching device, the exit opening having a clearance dimension and defining an exit plane. The arc blow device is provided for generating a magnetic blow field by which the switch arc developing when the contact point opens is blown away from the contact point towards the exit opening. Furthermore, the switching device comprises at least one first arc guide plate which extends from the contact point to the exit opening and by which the switch arc is guided and stretched on the way from the contact point to the exit opening, wherein the first arc guide plate comprises a first portion and a second portion within the arc extinguishing chamber between the contact point and the exit plane, the first portion of the first arc guide plate being arranged proximal to the contact point, and the second portion of the first arc guide plate being arranged distal to the contact point. According to the invention it is provided that the second portion of the first arc guide plate extends beyond the exit opening in a direction parallel to the exit plane so that the switch arc is stretched by the second portion of the first arc guide plate at least at one end of the switch arc beyond the clearance dimension of the exit opening, wherein an arc guide pin projecting from the second portion of the first arc guide plate is arranged in front of the exit opening, by which arc guide pin the switch arc is again shortened in front of the exit opening.

公开(公告)号：US09558899B2

公开(公告)日：2017-01-31

申请号：US14674300

申请日：2015-03-31

Applicant: Schaltbau GmbH

Inventor： Korbinian Kreuzpointner ,  Andrej Ignatov ,  Robert Kralik

IPC: H01H33/18 ,  H01H33/08 ,  H01H9/36 ,  H01H9/44 ,  H01H33/59

CPC classification number: H01H33/182 ,  H01H9/362 ,  H01H9/44 ,  H01H33/08 ,  H01H33/18 ,  H01H33/596

Abstract: 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.

Abstract translation: 公开了一种直流接触器，其包括具有两个接触点的双断点，每个接触点具有固定和可动触点，所述可动触头布置在接触桥上。 接触器包括灭弧装置和吹送装置，当在优先电流方向上进行切换时，将接触点打开时在第一接触点处形成的开关电弧吹入灭弧装置。 与第一接触点的可动触头相邻地布置有换向板，接触桥和换向板彼此电绝缘，并且换向板潜在地连接到第二接触点的固定触点，使得当切换时 在优先电流方向发生，在第一接触点处的开关电弧形成通过吹风装置从接触桥跳到换向板。

公开(公告)号：US09947489B2

公开(公告)日：2018-04-17

申请号：US15129614

申请日：2015-03-25

Applicant: SCHALTBAU GMBH

Inventor： Robert Kralik

IPC: H01H9/36 ,  H01H9/44 ,  H01H9/34 ,  H01H33/59 ,  H01H73/18

CPC classification number: H01H9/443 ,  H01H9/34 ,  H01H9/36 ,  H01H33/596 ,  H01H73/18

Abstract: The present invention relates to an electric switching apparatus, in particular a DC contactor. The switching apparatus has at least one switching point as well as at least one arc-quenching device that is assigned to the switching point. The arc-quenching device comprises at least one quenching element and at least one permanent magnet for influencing an arc that arises during the switching process. The arc is blown into the quenching element by a magnetic field that is created by the permanent magnet. It is provided according to the invention that the at least one permanent magnet forms at the same time the quenching element and that it is arranged and polarized in a way that the arc is attracted by the permanent magnet and thereby sucked onto the permanent magnet and quenched by said permanent magnet.

公开(公告)号：US09991073B2

公开(公告)日：2018-06-05

申请号：US15003766

申请日：2016-01-21

Applicant: Schaltbau GmbH

Inventor： Robert Kralik

IPC: H01H33/18 ,  H01H9/34 ,  H01H9/44 ,  H01H9/46 ,  H01H33/08 ,  H01H1/20 ,  H01H50/54

CPC classification number: H01H33/182 ,  H01H1/20 ,  H01H9/346 ,  H01H9/443 ,  H01H9/46 ,  H01H33/08 ,  H01H50/546

Abstract: The present invention relates to a switching device with at least one contact point and an arc blow device associated with the contact point, where the arc blow device comprises at least one blow magnet for generating a magnetic blow field, and where the blow field is of such nature that a switch arc developing when the contact point opens is blown out from the contact point. It is according to the invention provided that the blow field comprises a first magnetic field area and a second magnetic field area arranged adjacent to the first magnetic field area, where the magnetic field lines of the first magnetic field area are oriented in opposite direction to the magnetic field lines of the second magnetic field area, and where the blow field further comprises a transition area which connects the first magnetic field area and the second magnetic field area with each other, where the orientation of the magnetic field lines in the transition area, each starting out from the first magnetic field area and the second magnetic field area, aligns toward the contact point so that the switch arc within the transition area is in dependence of the direction of the current, starting out from the contact point, directed either into the first magnetic field area or into the second magnetic field area and there in both cases blown in the same direction away from the contact point.

公开(公告)号：US20160217951A1

公开(公告)日：2016-07-28

申请号：US15003766

申请日：2016-01-21

Applicant: Schaltbau GmbH

Inventor： Robert Kralik

IPC: H01H33/18 ,  H01H33/08

CPC classification number: H01H33/182 ,  H01H1/20 ,  H01H9/346 ,  H01H9/443 ,  H01H9/46 ,  H01H33/08 ,  H01H50/546

Abstract: The present invention relates to a switching device with at least one contact point and an arc blow device associated with the contact point, where the arc blow device comprises at least one blow magnet for generating a magnetic blow field, and where the blow field is of such nature that a switch arc developing when the contact point opens is blown out from the contact point. It is according to the invention provided that the blow field comprises a first magnetic field area and a second magnetic field area arranged adjacent to the first magnetic field area, where the magnetic field lines of the first magnetic field area are oriented in opposite direction to the magnetic field lines of the second magnetic field area, and where the blow field further comprises a transition area which connects the first magnetic field area and the second magnetic field area with each other, where the orientation of the magnetic field lines in the transition area, each starting out from the first magnetic field area and the second magnetic field area, aligns toward the contact point so that the switch arc within the transition area is in dependence of the direction of the current, starting out from the contact point, directed either into the first magnetic field area or into the second magnetic field area and there in both cases blown in the same direction away from the contact point.

Abstract translation: 本发明涉及具有至少一个接触点的开关装置和与接触点相关联的电弧吹制装置，其中电弧吹制装置包括用于产生磁场的至少一个吹塑磁体，并且其中吹气场为 当触点打开时开关电弧显影的性质从接触点吹出。 按照本发明，吹气场包括与第一磁场区相邻布置的第一磁场区和第二磁场区，其中第一磁场区的磁场线定向为与第一磁场区相反的方向 第二磁场区域的磁场线，并且其中所述吹扫场还包括将所述第一磁场区域和所述第二磁场区域彼此连接的过渡区域，其中所述过渡区域中的磁场线的取向， 每个从第一磁场区域和第二磁场区域开始，朝向接触点对准，使得在过渡区域内的开关依赖于从接触点开始的电流方向，指向 第一磁场区域或第二磁场区域，并且在两种情况下都以相同的方向远离触点吹送 点

公开(公告)号：US11532443B2

公开(公告)日：2022-12-20

申请号：US16496706

申请日：2018-02-28

Applicant: Schaltbau GmbH

Inventor： Robert Kralik

IPC: H01H9/36 ,  H01H9/44 ,  H01H71/18 ,  H01H73/18

Abstract: Disclosed is a switch device with at least one contact point and a permanent magnetic arc blowing device which is paired with the contact point, wherein the arc blowing device has at least one second permanent magnet (15) as an auxiliary magnet, and the auxiliary magnet is arranged in the direct vicinity of the contact point (7.1), such that at least one section of the magnetic field (17) of the auxiliary magnet (15) amplifies the blow-out field in the transition region.