WO2014068054A1 - Gleichstromschaltgerät - Google Patents
Gleichstromschaltgerät Download PDFInfo
- Publication number
- WO2014068054A1 WO2014068054A1 PCT/EP2013/072805 EP2013072805W WO2014068054A1 WO 2014068054 A1 WO2014068054 A1 WO 2014068054A1 EP 2013072805 W EP2013072805 W EP 2013072805W WO 2014068054 A1 WO2014068054 A1 WO 2014068054A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- arc
- switching
- quenching
- switching device
- shaped
- 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
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
- H01H73/045—Bridging contacts
Definitions
- the invention relates to a DC switching device according to the preamble of
- AC switching devices have proved unsuitable in many respects. For example, when switching DC currents with an AC switch even at voltages and currents far below the maximum AC power limits of that one
- 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.
- 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 DC switching device in a partially sectioned view in elevation
- FIG. 2 shows the arc extinguishing arrangement for a DC switching device according to FIG. 1 in axonometric representation
- Fig. 3 is a detail of Figure 1 in section.
- FIG. 4 shows a further detail from FIG. 1 in a first state of the arc
- FIG. and FIG. 5 shows a further detail from FIG. 1 in a second state of the arc.
- Figs. 1 to 5 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 with at least a first switching contact 4 and a movable switching bridge 20, wherein the
- Gleichstromschaltêt 1 further comprises an arc extinguishing arrangement 6, wherein the arc extinguishing assembly 6 has at least a first arc extinguishing chamber 7, which has a plurality of extinguishing plates 9, wherein at least a first arc splitter 27 of the quenching plates 9 so shaped, in particular bent such that on - by a Switching caused - arcs 11, in the first arc quenching chamber 7, a Lorentz force 12 in the direction of the quenching plates 9 acts.
- 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 used for switching
- DC currents are provided and specially designed.
- the invention relates to DC switching devices 1, which for the intended switching of high voltages in the range of several hundred volts, about 600V operating voltage, and currents in the two-digit ampere range provided and designed.
- DC switching device 1 described in more detail with a single switching path. But it can also be versions with multiple parallel switching paths, therefore switchable
- 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 a
- the DC switching device 1 has in its illustrated and preferred
- Embodiment a single switching path, but with a double interruption of this single switching path is provided. It is preferably provided that the
- 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. 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 may also be provided to carry out the subject DC switching device 1 as so-called. Self-switch, which one or more triggers, such as a
- 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 DC switching device 1 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 further to Although the switching bridge 20 has two, designed as electrical contacts areas to the first switching contact 4 and the second
- contact 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 to
- Arcs 11 which arise in the course of a switching operation to bring to extinction.
- Such arcs 11 occur in particular during a switch-off.
- Switching off 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.
- 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 contacting are shown, only their arrangement relative to the respective arc extinguishing chambers 7, 8 to
- the arc extinguishing arrangement 6 has a first arc quenching chamber 7 and a second arc quenching chamber 8. It is preferably provided that the 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.
- the term "assigned" in this context refers to an arrangement of the relevant
- FIG. 2 shows the two switching contacts 4, 5 in Area of the respective arc quenching chamber 7, 8.
- DC switching device 1 are arranged parallel to each other, as shown in Fig. 2.
- 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. In particular, it may 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 path of movement of the switching bridge 20 are arranged.
- At least a first quenching plate 27 of the quenching plates 9 is shaped, in particular bent such that - caused by a switching operation - arcs 11, in the first arc quenching chamber 7, a Lorentz force 12 in the direction of the quenching plates 9 acts.
- the first quenching plate 27 is here a quenching plate 9, which is formed differently from the other quenching plates 9. In this way, the - caused by a switching process - arcs 11 are driven in the direction of the quenching plates 9, whereby the energy of the arc 11 can dissipate quickly.
- the first quenching plate 27 may delimit a quenching plate stack of the quenching plates 9 of the first arc quenching chamber 7. According to FIGS. 1, 3, 4 and 5 it can be provided that the first quenching plate 27 is arranged at one end of the quenching plate stack of the quenching plates 9.
- the first quenching plate 27 may be part of the particular
- the first arc splitter 27 is arranged at a first end of the splitter stack of quenching plates 9, which first end is arranged adjacent to a position switching bridge 20, which position the switching bridge 20 occupies when the switching bridge 20 of the switch contacts 4, 5 is disconnected. Thereby, the arc 11 can skip well on the first arc splitter 27, wherein the arc 11 is formed immediately after this skipping between the switching contact 4,5 and the first arc splitter 27.
- the first quenching plate 27 is arranged adjacent to a movement path of the switching bridge 20.
- Movement path of the switching bridge 20 is arranged. When opening the switching bridge 20, that part of the switching bridge 20, which is provided with the first moves
- Switching contact 4 and / or the second switching contact 5 to be in contact, along this trajectory of the switching bridge 20.
- the arc 11 therefore also initially moves along the trajectory of the switching bridge 20.
- the first quenching plate 27 has a receptacle 30, and that a contact abutment part 31 made of insulating material is arranged in the receptacle 30.
- the contact stop member 31 is in this case provided in particular a stop for form the switching bridge 20, so that it can be arranged immediately adjacent to the first splitter plate 27 in the open state.
- the first arc splitter 27 is U-shaped.
- a Lorentz force 12 in the direction of the quenching plates 9 is particularly easy to cause.
- the local field strength can be increased by a U-shaped curved surface.
- the first quenching plate 27 can be divided by the U-shaped bent region into a first leg 28 and a second leg 29.
- DC switching device 1 is conductively connected. This can cause a current flow of the
- Arc 11 are discharged through the first arc splitter 27. Furthermore, it can be dispensed with the additional use of magnets, since the magnetic field, which can be generated by the current flow of the Lichbogens 11 itself, the Lorentz force 12. Another advantage is that the stronger the current intensity of the arc 11, and therefore the more dangerous the arc 11, the strength of the Lorentz force 12 also increases, and the arc 11 can be deleted quickly and reliably in the quenching plates 9.
- first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 may be provided that the first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first leg 28 of the U-shaped first
- Erase plate 27 is conductively connected to the electrical output 3.
- Quenching plate 27 is arranged substantially parallel to an adjacent arranged quenching plate 9. Thereby, a plane-parallel gap 32 between the second leg 29 and an adjacent arranged quenching plate 9 are formed.
- the arc 11 is pulled by the Lorentz force 12 in the gap 32, whereby the energy of the arc 11 can be well dissipated.
- Such a plane-parallel gap 32 can in particular cause a propagation direction 25 of the arc 11 away from the switching contacts 4, 5.
- the first leg 28 and the second leg 29 of the U-shaped first quenching plate 27 are arranged substantially parallel to each other. If one end of the arc 11 has jumped over the first bridge plate 27 during the switch-off operation, a particularly strong Lorentz force 12 can be formed in the direction of the quenching plates 9 by this arrangement, as shown in particular in FIG. 4.
- Fig. 1 shows a particularly preferred embodiment of this
- DC switching device 1 according to which a DC switching device 1 with at least one electrical input 2 and at least one electrical output 3, and at least a first switching contact 4 and a movable switching bridge 20 may be provided, wherein the DC switching device 1 further comprises an arc extinguishing arrangement 6, wherein the arc extinguishing arrangement 6 at least a first
- Arc quenching chamber 7, which has a plurality of quenching plates 9, wherein the first quenching plate 27 is U-shaped, wherein the first leg 28 of the U-shaped first quenching plate 27 is conductively connected to the electrical output 3, wherein the second leg 29 of the U-shaped first quenching plate 27 is arranged substantially parallel to an adjacent arranged quenching plate 9, wherein the first leg 28 and the second leg 29 of the U-shaped first quenching plate 27 are arranged substantially parallel to each other.
- a particularly advantageous behavior of the arc 11 can be effected.
- FIG. 4 shows the preferred embodiment in a first state of the arc 11, wherein one end of the arc 11 jumps from the switching bridge 20, which is in particular potential-free, to the first arc splitter 27, which is conductively connected to the electrical output 3.
- the first arc splitter 27 which is conductively connected to the electrical output 3.
- the current flow in the u-shaped region and in the first leg 28 in this case a magnetic field is generated, which causes a Lorentz force 12 in the direction of the quenching plates 9, and in particular away from the switching bridge 20.
- FIG. 5 essentially shows FIG. 4 in a second state of the arc 11, which second state substantially immediately follows the first state in FIG. 4. Due to the penetration of the arc 11 into the gap 32 between the second leg 29 and the adjacent splitter plate 9, a current flow in the second leg 29 forms, wherein the path of the current flow in the second leg 29 increases with increasing penetration depth of the arc 11 into the gap 32. This further strengthens the Lorentz force 12, which drives the arc into the quenching plates, as a result of which a particularly fast dissipation of the arc 11 can be achieved.
- the arc extinguishing arrangement 6 has a second arc quenching chamber 8, comprising a plurality of quenching plates 9, and that in the second arc quenching chamber 8 also a first quenching plate 27 is arranged.
- the first quenching plate 27 of the second arc quenching chamber 8 may be formed equal to the first quenching plate 27 of the first arc quenching chamber 7.
- the DC switching device 1 at least one
- Arc running rail 18 is part of the first arc quenching chamber 7. As a result, the arc 11 can be offered an electrotechnically attractive way.
- Switching contact 4 pulled away, which sweeps across the quenching stack away, and thereby each loses energy.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201380057091.6A CN104813428B (zh) | 2012-10-31 | 2013-10-31 | 直流电开关 |
EP13789741.9A EP2915174B1 (de) | 2012-10-31 | 2013-10-31 | Gleichstromschaltgerät |
BR112015009675A BR112015009675A2 (pt) | 2012-10-31 | 2013-10-31 | dispositivo de comutação de corrente contínua |
RU2015120568A RU2015120568A (ru) | 2012-10-31 | 2013-10-31 | Коммутационный аппарат постоянного тока |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012110411.5 | 2012-10-31 | ||
DE201210110411 DE102012110411A1 (de) | 2012-10-31 | 2012-10-31 | Gleichstromschaltgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014068054A1 true WO2014068054A1 (de) | 2014-05-08 |
Family
ID=49582719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/072805 WO2014068054A1 (de) | 2012-10-31 | 2013-10-31 | Gleichstromschaltgerät |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2915174B1 (de) |
CN (1) | CN104813428B (de) |
BR (1) | BR112015009675A2 (de) |
DE (1) | DE102012110411A1 (de) |
RU (1) | RU2015120568A (de) |
WO (1) | WO2014068054A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111341615A (zh) * | 2020-03-26 | 2020-06-26 | 贵州泰永长征技术股份有限公司 | 一种特殊的浮动式静触头组件装置结构 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5004874A (en) * | 1989-11-13 | 1991-04-02 | Eaton Corporation | Direct current switching apparatus |
EP0619592A1 (de) * | 1993-04-07 | 1994-10-12 | Schneider Electric Sa | Elektrischer Schutzschalter mit elektrodynamischer Kontaktabstossung und mit Doppellöschkammern |
EP0892415A2 (de) * | 1997-07-14 | 1999-01-20 | Eaton Corporation | Elektrisches Stromschaltgerät mit Wirbellichtbogenlösung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0353355A1 (de) * | 1987-04-21 | 1990-02-07 | Circuit Breaker Industries Limited | Lichtbogenlöscheinrichtung |
JPH06196079A (ja) * | 1992-12-25 | 1994-07-15 | Mitsubishi Electric Corp | 開閉器 |
DE20105432U1 (de) * | 2001-03-28 | 2002-09-26 | Schaltbau GmbH, 81677 München | Blasung bei AC-Betrieb |
CN201877321U (zh) * | 2010-11-29 | 2011-06-22 | 西安交通大学 | 一种提高低压电器开断性能的灭弧装置 |
-
2012
- 2012-10-31 DE DE201210110411 patent/DE102012110411A1/de not_active Ceased
-
2013
- 2013-10-31 EP EP13789741.9A patent/EP2915174B1/de active Active
- 2013-10-31 WO PCT/EP2013/072805 patent/WO2014068054A1/de active Application Filing
- 2013-10-31 RU RU2015120568A patent/RU2015120568A/ru not_active Application Discontinuation
- 2013-10-31 BR BR112015009675A patent/BR112015009675A2/pt not_active IP Right Cessation
- 2013-10-31 CN CN201380057091.6A patent/CN104813428B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5004874A (en) * | 1989-11-13 | 1991-04-02 | Eaton Corporation | Direct current switching apparatus |
EP0619592A1 (de) * | 1993-04-07 | 1994-10-12 | Schneider Electric Sa | Elektrischer Schutzschalter mit elektrodynamischer Kontaktabstossung und mit Doppellöschkammern |
EP0892415A2 (de) * | 1997-07-14 | 1999-01-20 | Eaton Corporation | Elektrisches Stromschaltgerät mit Wirbellichtbogenlösung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111341615A (zh) * | 2020-03-26 | 2020-06-26 | 贵州泰永长征技术股份有限公司 | 一种特殊的浮动式静触头组件装置结构 |
Also Published As
Publication number | Publication date |
---|---|
CN104813428B (zh) | 2018-03-20 |
CN104813428A (zh) | 2015-07-29 |
DE102012110411A1 (de) | 2014-05-15 |
EP2915174B1 (de) | 2017-04-26 |
EP2915174A1 (de) | 2015-09-09 |
RU2015120568A (ru) | 2016-12-20 |
BR112015009675A2 (pt) | 2017-07-04 |
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