WO2014068055A1 - Gleichstromschaltgerät - Google Patents
Gleichstromschaltgerät Download PDFInfo
- Publication number
- WO2014068055A1 WO2014068055A1 PCT/EP2013/072806 EP2013072806W WO2014068055A1 WO 2014068055 A1 WO2014068055 A1 WO 2014068055A1 EP 2013072806 W EP2013072806 W EP 2013072806W WO 2014068055 A1 WO2014068055 A1 WO 2014068055A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switching
- arc
- switching device
- quenching
- switching contact
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns
Definitions
- the invention relates to a DC switching device according to the preamble of claim 1.
- the object of the invention is therefore to provide a DC switching device of the type mentioned, with which the mentioned disadvantages can be avoided, and with which DC currents high power can be switched safely.
- a DC switching device which has a high switching capacity at DC currents, and which is therefore suitable for switching DC currents of high power.
- Such a DC switching device has a high level of security, in particular against thermal destruction.
- Fig. 1 shows a particularly preferred embodiment of a subject DC switching device in a partially sectioned view in elevation
- FIG. 2 shows the arc extinguishing arrangement of the DC switching device according to FIG. 1 in axonometric representation
- Fig. 3 quenching plates and arc running rail in an arrangement according to FIG. 1 without further components.
- FIG. 1 to 3 show a particularly preferred embodiment of a DC switching device 1, or parts of an arc extinguishing arrangement 6 of such a DC switching device 1, wherein the DC switching device 1 has at least one electrical input 2 and at least one electrical output 3, and at least one first switching contact 4th and a movable switching bridge 20, wherein the DC switching device 1 further comprises an arc extinguishing assembly 6, wherein the arc extinguishing assembly 6 has at least a first arc extinguishing chamber 7, which has a plurality of quenching plates 9, wherein an arc guide rail 18 is conductively connected to the first switching contact 4, which opposite the quenching plates 9 is arranged in the first arc quenching chamber 7.
- a DC switching device 1 which has a high switching capacity at DC currents, and which is therefore suitable for switching DC currents of high power.
- Such a DC switching device 1 has a high level of security, in particular against thermal destruction.
- the subject invention relates to switching devices, which are provided for the switching of direct currents and specially designed.
- the invention relates to DC switching devices 1, which are intended and designed for the intended switching high voltages in the range of several hundred volts, about 600V operating voltage, as well as currents in the two-digit ampere range.
- An objective DC switching device 1 has an electrical input 2 and an electrical output 3, which are preferably designed as screw terminals, as shown in Fig. 1. Furthermore, the DC switching device 1 has an insulating material housing.
- the DC switching device 1 has in its illustrated and preferred embodiment, a single switching path, but a double interruption of this single switching path is provided. It is preferably provided that the DC switching device 1 next to the first switching contact 4 further comprises a second switching contact 5, which are both fixed to the housing, and can be electrically connected by a movable switching bridge 20, whereby an electrically conductive current path from the input 2 to the output 3 is formed becomes. It is provided that the position of the switching bridge 20 is manually controlled by the shift lever 19. It is preferably provided that the shift lever 19 acts on the switching bridge 20 via a snap-action switching mechanism in order to achieve a sudden opening and closing of the switching path. It can also be provided to carry out the subject DC switching device 1 as a so-called.
- Self-switch which has one or more triggers, such as an overcurrent release and / or a short-circuit release. Furthermore, it is preferably provided that the DC switching device 1 has a switching mechanism, in particular when the same is carried out as a self-switch.
- representational DC switching devices 1 are provided, which in addition to the first switching contact 4 only have the movable switching bridge 20, which - is connected - for example by a flexible conductor - to the output 3, to such a current path through the DC switching device 1 form.
- the current flow through the DC switching device 1 shown is from the electrical input 2 to the first switching contact 4, from this via the switching bridge 20 to the second switching contact 5 and from this to the electrical output 3.
- the switching bridge 20 in this case two, designed as electrical contacts Has areas to contact with the first switching contact 4 and the second switching contact 5, this is referred to in the diction of the subject application only as a switching bridge 20. It can also be provided that also the first switching contact 4 and the second switching contact 5 are designed as movable electrical contacts.
- the DC switching device 1 further comprises an arc extinguishing arrangement 6 in order to extinguish arcs 11, which arise in the course of a switching operation, to extinguish.
- This is intended to prevent current from continuing to flow through the DC switching device 1 due to so-called “stationary” arcs 11 and also to damage the DC switching device 1 due to the thermal effect of the arcs 11.
- Such arcs 11 occur, in particular, during a switch-off operation "refers to the separation of the switching bridge 20 of the first and second electrical switching contact 4, 5 to prevent current flow through the DC switching device 1.
- the physical relationships in the ignition of an arc 11 are described in the law of induction.
- Fig. 2 shows a preferred embodiment of the arc extinguishing arrangement 6, in forming the DC switching device with a first and a second switching contact 4, 5.
- the first switching contact 4 and the second switching contact 5 are shown, but this without any Further contacts are shown to illustrate only their arrangement relative to the respective arc extinguishing chambers 7, 8.
- the switching bridge 20 likewise shown in FIG. 2.
- the arc extinguishing arrangement 6 has a first arc quenching chamber 7 and a second arc quenching chamber 8.
- first arc quenching chamber 7 is assigned to the first switching contact 4, and that the second arc quenching chamber 8 is assigned to the second switching contact 5, wherein also embodiments are provided with only a first arc quenching chamber 7, if no second switching contact 5 is present.
- assigned refers in this context to an arrangement of the relevant arc quenching chamber 7, 8 with respect to the specified switching contact 4, 5 in such a way that an emerging at the switching contact 4, 5 arc 11 its way into or to the relevant arc quenching chamber 7, 8 shows the two switching contacts 4, 5 in the region of the respective arc quenching chamber 7, 8.
- first arc quenching chamber 7 and the second arc quenching chamber 8 are arranged parallel to each other in the DC switching device 1, as shown in FIGS. 2 and 3.
- first arc quenching chamber 7 and the second arc quenching chamber 8 a plurality of quenching plates 9 are arranged in each case.
- the quenching plates 9 are preferably arranged substantially normal to the arc guide rail 18, wherein between the side by side mounted quenching plates 9 is in each case a distance.
- at least one quenching plate 9 of the first arc quenching chamber 7 is electrically conductively connected to a quenching plate 9 of the second arc quenching chamber 8, provided that a first and a second arc extinguishing chamber 7, 8 are provided.
- the quenching plates 9 are preferably formed from an electrically and magnetically conductive metal, preferably comprising iron. Furthermore, it is preferably provided that the quenching plates 9 are formed substantially identical to each other. As shown in Fig. 3, it can be provided that individual quenching plates 9 are formed larger than the vast majority of quenching plates 9. These quenching plates 9, which protrude from the overall composite of the quenching plates 9, in particular in a region next to the trajectory of Switching bridge 20 is arranged. In this regard, the differences between the illustrated in Fig. 3 schematic arrangement of quenching plates 9 and the corresponding Aligning plates in Fig. 1, in which all quenching plates 9 are formed similar.
- the DC switching device 1 has at least one arc rail 18, which arc rail 18 is conductively connected to the first switching contact 4, and which arc rail 18 is disposed opposite the quenching plates 9 in the DC switching device 1.
- the arc runner 18 is part of the first arc extinguishing chamber 7.
- an arc guide rail 18 with the first switching contact 4 and a further arc rail 18 with the second switching contact 5 is each conductively connected, which are arranged opposite the quenching plates 9 in the arc extinguishing arrangement 6, therefore in the respective arc quenching chamber 7, 8.
- FIGS. 1 to 3 only the arc running rail 18 connected to the first switching contact 4 is shown.
- the distance between the arc runner 18 and the respective oppositely disposed quenching plates 9 decreases with increasing distance from the first switching contact 4.
- that one Connecting line of the arc running rail 18 facing ends of the latter arranged against the quenching plates 9 to the web 23 of the arc guide rail 18 includes an acute angle. Said distance is to be determined in each case in extension of the respective quenching plates 9.
- the arc 11, which is shown by way of example in FIG. 3 offers an electrotechnically attractive path. Due to the respectively decreasing to be bridged air gap of the arc 11 is pulled away by this arrangement in the direction 26 from the first switching contact 4, which sweeps across the quenching plate away, and thereby each loses energy.
- the said distance between the arc runner 18 and the respective oppositely arranged quenching plates 9 away from the first switching contact 4 decreases away.
- the arc runner 18 is preferably also formed comprising copper.
- the arc guide rail 18 is Z-shaped, in particular as a corresponding bent sheet metal strip, and that a first angle 21 between a first leg 22 and a web 23 of the Z-shaped arc track 18 is an obtuse angle. It is provided in particular that the first angle 21 is between 95 ° and 100 °. As shown in Fig. 1, it is particularly provided that on the first leg 22 of the first switching contact 4 is arranged.
- first leg 22 and a second leg 24 of the arc guide rail 18 are adapted to the further geometry of the DC switching device 1, wherein preferably and as in the illustrated preferred embodiment, it is provided that the first leg 22 and a second leg 24 are arranged substantially parallel. According to a particular embodiment, it is provided that formed between the arc rail 18 and the quenching plates 9, a channel which narrows with increasing distance from the first switching contact 4.
- the switching bridge 20 is designed such that an optionally resulting when opening the switching contact arc is discharged into the channel and enters the channel between the arc runner and quenching plates.
- the arc is further drawn between the arc guide rail and quenching plates in the narrowing channel between the two.
- the arc guide rail 18 is configured such that it forms a boundary of the narrowing channel at least over half of the quenching plates.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2015120580A RU2015120580A (ru) | 2012-10-31 | 2013-10-31 | Коммутационный аппарат постоянного тока |
BR112015009674A BR112015009674A2 (pt) | 2012-10-31 | 2013-10-31 | comutador |
CN201380057110.5A CN104937689A (zh) | 2012-10-31 | 2013-10-31 | 直流电开关 |
EP13805279.0A EP2915176A1 (de) | 2012-10-31 | 2013-10-31 | Gleichstromschaltgerät |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012110408.5 | 2012-10-31 | ||
DE102012110408.5A DE102012110408A1 (de) | 2012-10-31 | 2012-10-31 | Gleichstromschaltgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014068055A1 true WO2014068055A1 (de) | 2014-05-08 |
Family
ID=49765452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/072806 WO2014068055A1 (de) | 2012-10-31 | 2013-10-31 | Gleichstromschaltgerät |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2915176A1 (de) |
CN (1) | CN104937689A (de) |
BR (1) | BR112015009674A2 (de) |
DE (1) | DE102012110408A1 (de) |
RU (1) | RU2015120580A (de) |
WO (1) | WO2014068055A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111146028A (zh) * | 2020-01-15 | 2020-05-12 | 上海电器科学研究所(集团)有限公司 | 一种直流接触器触头灭弧系统 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2163293A (en) * | 1984-08-15 | 1986-02-19 | Mitsubishi Electric Corp | Circuit-breaker arc control |
EP0473014A2 (de) * | 1990-08-29 | 1992-03-04 | Eaton Corporation | Bidirektionale Gleichstromschalteinrichtung mit gabelförmigen Lichtbogenlaufstücken, die sich in getrennten Lichtbogenlöschkammern erstrecken |
US6417474B1 (en) * | 2001-05-15 | 2002-07-09 | Eaton Corporation | Electrical switching apparatus having an arc runner with an elongated raised ridge |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1027715A1 (de) * | 1997-10-17 | 2000-08-16 | Kilovac Corporation | Abgedichteter hochspannungsschalter |
DE20105432U1 (de) * | 2001-03-28 | 2002-09-26 | Schaltbau GmbH, 81677 München | Blasung bei AC-Betrieb |
-
2012
- 2012-10-31 DE DE102012110408.5A patent/DE102012110408A1/de not_active Ceased
-
2013
- 2013-10-31 BR BR112015009674A patent/BR112015009674A2/pt not_active IP Right Cessation
- 2013-10-31 CN CN201380057110.5A patent/CN104937689A/zh active Pending
- 2013-10-31 WO PCT/EP2013/072806 patent/WO2014068055A1/de active Application Filing
- 2013-10-31 EP EP13805279.0A patent/EP2915176A1/de not_active Withdrawn
- 2013-10-31 RU RU2015120580A patent/RU2015120580A/ru not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2163293A (en) * | 1984-08-15 | 1986-02-19 | Mitsubishi Electric Corp | Circuit-breaker arc control |
EP0473014A2 (de) * | 1990-08-29 | 1992-03-04 | Eaton Corporation | Bidirektionale Gleichstromschalteinrichtung mit gabelförmigen Lichtbogenlaufstücken, die sich in getrennten Lichtbogenlöschkammern erstrecken |
US6417474B1 (en) * | 2001-05-15 | 2002-07-09 | Eaton Corporation | Electrical switching apparatus having an arc runner with an elongated raised ridge |
Also Published As
Publication number | Publication date |
---|---|
EP2915176A1 (de) | 2015-09-09 |
RU2015120580A (ru) | 2016-12-20 |
CN104937689A (zh) | 2015-09-23 |
DE102012110408A1 (de) | 2014-04-30 |
BR112015009674A2 (pt) | 2017-07-04 |
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