CN103545153A - Protective switchgear and yokes - Google Patents
Protective switchgear and yokes Download PDFInfo
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- CN103545153A CN103545153A CN201310292736.6A CN201310292736A CN103545153A CN 103545153 A CN103545153 A CN 103545153A CN 201310292736 A CN201310292736 A CN 201310292736A CN 103545153 A CN103545153 A CN 103545153A
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- yoke
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- 230000001681 protective effect Effects 0.000 title claims abstract description 19
- 230000005672 electromagnetic field Effects 0.000 claims abstract description 16
- 238000010891 electric arc Methods 0.000 abstract description 83
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000004880 explosion Methods 0.000 description 25
- 230000033001 locomotion Effects 0.000 description 15
- 230000002349 favourable effect Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000004907 flux Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
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- 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
- H01H73/18—Means for extinguishing or suppressing arc
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- 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
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The invention relates to a protective switch device, especially a brake having an input joint and an output joint. The joints together with an electrical line are configured to conduct the protective switch device. The protective switch device further comprises a switch contact. The switch contact has a fixed conducting member with a fixe position and a movable conducting member movable relative to the fixed conducting member. In this way, an electric arc can be formed between the movable conducting member and the fixed conducting member when the conductive switch contact is disconnected. The switch contact is conductively connected with the input joint and the output joint through a current path. The current path has a conductive segment which is configured in a way to act together with the electric arc so as to form a generated electromagnetic field. The electromagnetic field and the electric arc act mutually to drive the electric arc away from the switch contact. The breaking capacity of the protective switch device is obviously enhanced. The service lifetime of the protective switch device is also prolonged.
Description
Technical field
The present invention relates to a kind of protection switch device, especially circuit breaker, it has input adapter and out splice going splice, described input adapter and out splice going splice are configured to touch logical described protection switch device together with electric wiring, described protection switch device also has switch contact, described switch contact has that position is fixedly arranged fixingly touches logical part and fixingly touches that logical part is movably mobile touches logical part with respect to described, so described the touching of structure led to part, thereby when disconnecting, the switch contact of conduction forms electric arc at the tactile logical part of described movement and described fixing touching between logical part, wherein said switch contact is connected with described out splice going splice with described input adapter conductively by current path.
Background technology
Different protection switch devices is disclosed in the prior art: circuit breaker is to be large current design specially.Circuit breaker (so-called LS-Schalter) is to be a kind ofly applied to the overcurrent protective device of electronic equipment and to be especially applied to low voltage electric network field.Safety cut-off when power switch and circuit breaker have been guaranteed short circuit, and protection load and electric equipment avoid the damage that heating that overload, for example protection circuit avoid the excessive degree that causes due to super-high-current causes.Power switch and circuit breaker especially as switch element and security element application in electric power supply network and for monitoring and the guarantee of current circuit.
For this reason, protection switch device is connected with the electric wiring of current circuit to be monitored conductively by two splicing ears, with interruptive current in respective lines when needed.At this protection switch device, have switch contact, described switch contact has that position is fixedly arranged fixingly touches logical part and fixingly touches that logical part is movably mobile touches logical part with respect to described.Described movement is touched logical part and can be operated by the switching mechanism of protection switch device at this, thereby switch contact can be disconnected and closure.By this way, when the state that occurs predetermining, for example short circuit or overload, switch contact disconnects, so that monitored current circuit separates with electrical network.This protection switch device is also disclosed as series installation device in the field of low-voltage technology.
If switch contact disconnected in flow through moment of switch contact of electric current, when switch contact disconnects, fixing, touch logical part and separated movement and touch to lead between part and form electric arc.In order to eliminate these electric arc, conventional protection switch device has so-called explosion chamber, and described explosion chamber has a plurality of being arranged in parallel and spaced muffler.If order about electric arc, enter into explosion chamber, described electric arc can be divided into a plurality of minutes electric arc when encountering described muffler, and described minute electric arc is connected in series subsequently and burns between single muffler.Minute electric arc that a plurality of orders are electrically connected to has continuously formed higher arc voltage jointly, and this has caused electric arc to extinguish quickly subsequently.
At the fixing electric arc producing between logical part and mobile tactile logical part that touches, at this, can cause so-called contact burning; fix to touch logical part and move tactile logical part and there will be spillage of material; this finally can cause the damage of protection switch device, because described contact burning is closed at switch contact, can cause resistance to improve while having electric current to flow through.Should order about as quickly as possible electric arc for this reason and enter into explosion chamber from voltage contact area.Conventional protection switch device has so-called guide rail for this reason, and described guide rail is connected conductively with one end of electric arc-explosion chamber.The other end of electric arc-explosion chamber is touched logical part and is connected conductively with fixing by fixing feeler.At this, arrange that described guide rail makes to disconnect the contiguous described guide rail of the logical part of time shift movable contact at switch contact.When switch contact disconnects, electric arc is always more of a specified duration, and arc voltage thus raises.From a definite arc voltage, electric arc can touch logical part and skip to guide rail from mobile, and electric arc touches fixedly conversion and the burning between feeler and guide rail in other words of logical part fixing since then.By the fixing suitable geometry design of feeler and guide rail, electric arc is directed to electric arc-explosion chamber.
In order to order about electric arc, enter into quickly electric arc-explosion chamber, some protection switch devices additionally have so-called blow-out circuit (Blasschleife).At this, be a kind of coil, be so electrically connected to described coil, thereby it is only just switched on when electric arc is switched on guide rail, to be limited in the energy loss of energising protection switch device in service.At this, so arrange described blow-out circuit, thereby the directed electromagnetic field generating makes to apply long-range navigation magnetic force to electric arc, described long-range navigation magnetic force promotes electric arc towards electric arc-explosion chamber.This protection switch device is for example by patent documentation DE 28 41 004 or open by open source literature DE 33 33 792 A1.
Summary of the invention
Task of the present invention is, a kind of protection switch device is provided, and it is characterized in that less contact consume and the life-span of improving therefrom and the breaking capacity (Schaltleistung) of improvement.
This task is by being solved according to protection switch device of the present invention and yoke according to the present invention according to independent claims.Favourable technical scheme is the theme of dependent claims.
According to protection switch device, especially circuit breaker of the present invention, it has input adapter and out splice going splice, and described input adapter and out splice going splice are configured to touch logical described protection switch device together with electric wiring.Described protection switch device also has switch contact; described switch contact has that position is fixedly arranged fixingly touches logical part and fixingly touches that logical part is movably mobile touches logical part with respect to described; so structure is described touches logical part, thereby in described movement, touches between logical part and described fixing tactile logical part and form electric arc when the switch contact conducting electricity disconnects.Said switch contact is connected with described out splice going splice with described input adapter conductively by current path.Described current path has conductive section, described conductive section so structure and with described electric arc acting in conjunction, thereby form the electromagnetic field generating, described electromagnetic field and the interaction of described electric arc, thus order about described electric arc away from described switch contact.
The switch contact if electric current is flowed through, when switch contact disconnects, touch logical part away from the fixing electric arc that produces while touching logical part mobile.The electric current of protection switch device inside is led to part from fixing the touching of input adapter guiding; and when switch contact is closed from touching with fixing the current path that logical part guiding out splice going splice is touched in movement that logical part is connected conductively, in the region of switch contact, namely directly there is conductive section in contiguous region.Therefore described conductive section is the section of current path in the region of switch contact, wherein said section otherwise can be arranged in the first area of current path, be input adapter and fixing touching between logical part, or can be arranged in the second area of current path, i.e. mobile touching between logical part and out splice going splice.In principle equally likely, corresponding conductive section was both arranged in first area and was also arranged in second area.
The electric conductor if electric current is flowed through, generates an electromagnetic field thus.At this geometrical construction conductive section, thereby generate an electromagnetic field under alive state, directed described electromagnetic field like this, thus to electric arc, apply long-range navigation magnetic force regulation, so-called.Because be current flux equally even without be connected electric arc with electric wiring, so long-range navigation magnetic force is applied to again on electric arc in the following manner, make electric arc away from the voltage contact area of switch contact, be the region of fixed contact and mobile contact.Can order about quickly in this way electric arc enters into the explosion chamber of protection switch device and extinguishes there.Significantly improved thus and produced to from electric arc until relevant breaking capacity of the duration of arc extinction.In addition, by making electric arc only touch logical part and move and touch burning quite momently between logical part fixing, significantly reduced the fixing tactile logical part and the mobile material scaling loss of leading on part of touching that cause thus, this impels the life-span that significantly improves protection switch device.In addition, the necessary contact material of contact members is also few thus, thereby can construct quite compactly switch contact and and then establishing protective switching device.
In a kind of favourable improvement project of protection switch device; like this structure conductive section, thus make that described conductive section and contact disconnect time be engraved in described movement and touch logical part and form the conduct current portion of U-shaped substantially with the described fixing tactile electric arc burning between part that leads to.
The moment disconnecting from contact until electric arc from the mobile moment of touching the guide rail that logical part is transformed into protection switch device, electric arc touches logical part and mobile touching between logical part burnt fixing.In described time range, form the conduct current portion of U-shaped substantially, the Second Edge leg that the first side leg that described conduct current portion is formed by the conductive section by connection forms with the electric arc being connected by logicalnot circuit forms jointly.Said two limit legs are antiparallel, but opposite direction directionally galvanization substantially is parallel to each other again each other.Conductive section in this is arranged in the first area of current path, be input adapter and fixing so structure that touches between logical part and in structure, flow to the trend that the fixing electric current that touches logical part has U-shaped.Favourable mode is, at this, conductive section is spatially positioned to relative proximity on switch contact and and then be positioned on the electric arc forming when switch contact disconnects, to obtain large as far as possible power effect on electric arc.Can further improve breaking capacity in this way.
In the favourable improvement project of another kind, protection switch device has magnetic triggering system, and described magnetic triggering system is connected conductively with input adapter by coil and has a push rod supporting movably with respect to coil.Described push rod directly and/or indirectly acts on switch contact under short-circuit conditions, to touch logical part away from the fixing tactile disconnection that part causes switch contact of leading to by making to move.Described magnetic triggering system has yoke for this reason, by described yoke, coil is connected conductively with fixing tactile logical part, and wherein conductive section is configured to a part for yoke.
The magnetic triggering system of the push rod that has magnet exciting coil and support movably with respect to described magnet exciting coil provides in the region of protection switch device the scheme further expanding triggering the short circuit in the situation that for realizing.
If short circuit current flows through, described short circuit current flowing through coil, makes the armature being connected with push rod be attracted by coil thus.Described push rod impacts on mobile tactile logical part or to touching on the mobile contact support of logical part mechanical connection with described movement simultaneously, thereby makes it away from mobile tactile logical part, to prevent described two contact members welding.In addition pass through the switching mechanism of the motion triggers protection switch device of push rod, by the movement with switching mechanism mechanical couplings, touch the logical same cut-off switch contact of part thus.
By yoke, coil is connected conductively with mobile tactile logical part.Therefore described yoke is in the first area of current path, to arrange to such an extent that approach the part that logical part is touched in movement most.So construct in this structure in described region, and making through yoke, to flow to the fixing current trend that touches logical part from coil is U-shaped.By this way that the current trend in the region of conductive section is substantially directed on the contrary with the current trend of the electric arc of flowing through.If conductive section this be spatially positioned to relative proximity on switch contact and and then be positioned on the electric arc forming when switch contact disconnects, can on electric arc, obtain thus large as far as possible power effect.
In the favourable improvement project of the another kind of protection switch device; yoke is constructed bifurcated and is had two limit legs at this in the region of conductive section, thereby is arranged at least in part between two limit legs of conductive section at the logical part of the closed time shift movable contact of switch contact and mobile contact support.
In the region of the direct vicinity of the electric arc forming while in this way conductive section being spatially arranged in to switch contact disconnection.Therefore there is obviously higher field intensity with the electromagnetic field of electric arc acting in conjunction generation, again obvious larger power is applied on electric arc thus, thereby order about electric arc, from voltage contact area, towards explosion chamber, move quickly.Further improved thus the breaking capacity of protection switch device.
In the favourable improvement project of the another kind of protection switch device, mobile tactile logical part is arranged on the mobile contact support of rotatable supporting, and wherein said conductive section is a part for described mobile contact support.
Substitute conductive section is configured in the first area of current path, can also be configured in the second area of current path, from mobile, touch logical part to the path of out splice going splice.This can either be that replacement scheme can be again additional aspects with respect to being configured in first area to be so configured in second area inherence.At this, it is also important that, conductive section be spatially arranged in to relative proximity on switch contact and and then be arranged on the electric arc forming when switch contact disconnects, thereby realize the large as far as possible power effect on electric arc that is applied to.Further improved in this way breaking capacity.
In the favourable improvement project of the another kind of protection switch device, described conductive section rotatably or is flexibly connected with described mobile contact support.In order to obtain power effect as well as possible on electric arc, the conductive section of constructing in the second area of current path rotatable motion ground or be connected with mobile contact support at least flexibly.Can between disconnection moving period of mobile contact support, optimize conductive section to the geometry of electric arc in this way.
In the favourable improvement project of the another kind of protection switch device, conductive section supports regularly with respect to the shell position of protection switch device.Guaranteed in this way the installation that protection switch device is simplified.
Protection switch device according to structure of magnetic yoke of the present invention for the above-mentioned type.
Yoke according to the present invention is provided for being arranged in the magnetic triggering system of electic protection switching device, especially circuit breaker at this.Described yoke has first area, and described first area is configured to touch conductively logical yoke by the trigger winding of magnetic triggering system.This outer yoke also has second area, and described second area is configured to touch conductively logical yoke by the fixing tactile logical part of the switch contact of protection switch device.When this switch contact in energising disconnects, produce electric arc, first, described electric arc movably move to touch between logical part at fixing tactile logical part with respect to described fixing tactile logical part and burn in the first stage of electric arc generation.In the geometrical construction like this of this yoke according to the present invention, thereby make under "on" position, the current flux in second area is with respect to the current flux of the electric arc of flowing through substantial reverse (gegengleich) orientation abreast at least in part.The second area of flowing through by electric current and the acting in conjunction of electric arc generate an electromagnetic field, the field wire of described electromagnetic field is so directed in the region of electric arc, make to electric arc apply regulation power, be so-called long-range navigation magnetic force, described power is so arranged so that electric arc leaves the voltage contact area of switch contact, is fixed contact and mobile contact.Can order about in this way electric arc enters into quickly the explosion chamber of protection switch device and extinguishes there.Significantly improved thus and produced to from electric arc until relevant breaking capacity of the duration of arc extinction.
Accompanying drawing explanation
By accompanying drawing, elaborate the embodiment of described protection switch device below.Wherein:
Figure 1A and 1B illustrate the schematic diagram of the switch contact of the protection switch device under various states;
Fig. 2 A and 2B illustrate the schematic diagram of the magnetic triggering system of protection switch device with multiple view;
Fig. 3 illustrates the schematic diagram of the yoke of magnetic triggering system.
Reference numerals list
1 protection switch device
4 fixing touching are led to part
5 move tactile logical part
6 mobile contact supports
7 explosion chambers
8 guide rails
9 electric arcs
10 magnetic triggering systems
11 connection lines
12 magnet exciting coils
20 yokes
21 Connection Elements
22 fixed contact supports
23 feelers
24 conductive sections
25 field elements
26 openings
27 explosion chamber's plates
D rotation
F power
I electric current/current flux.
Parts identical in different accompanying drawing diagrams always mark identical Reference numeral.This mark is applicable to all accompanying drawing diagrams, in described all accompanying drawing diagrams, can identify corresponding parts equally.
Embodiment
In Figure 1A and 1B, be shown schematically in the switch contact of the protection switch device 1 under multiple on off state.Described switch contact has fixing touching and leads to part 4 and touch the movably mobile tactile part 5 that leads to of logical part with respect to described fixing.Mobile tactile logical part 5 is arranged on the mobile contact support 6 in the housing that can be rotated to support on protection switch device 1.Yet may be also, movement be touched to logical part 5 and be integrated in mobile contact support 6, thus the suitable subregion that makes mobile contact support 6 as mobile touch that logical part 5 works and with the fixing common switch contact that forms of logical part 4 that touches.Fixing tactile logical part 4 is arranged on fixed contact support 22, and described fixed contact support is the part of yoke 20.Yoke 20 has Connection Element 21 conductively, by described Connection Element conductively, yoke 20 is connected conductively with magnet exciting coil 12.Magnet exciting coil 20 is that magnetic triggering system 10(is shown in Fig. 2 A and 2B) a part, described magnetic triggering system causes the disconnection of switch contact when short circuit.This outer yoke 20 has feeler (Kontakthorn) 23, by described feeler, yoke 20 is connected conductively with the first end of the explosion chamber 7 of protection switch device 1.
By being for example configured to input adapter (not shown) and the out splice going splice (not shown) of splicing ear, protection switch device 1 is integrated in electric wiring to be protected.In the inside of protection switch device 1, as long as switch contact is closed, input adapter is just connected by current path mutually conductively with out splice going splice.In Figure 1A and 1B, in the region of corresponding assembly, by simple arrow, illustrate by the current flux I of current path conducting.The first area of current path is led to fixing touch logical part 4 from input adapter through magnet exciting coil 12 and yoke 20 at this.And the second area of current path leads to from mobile touching the out splice going splice that part 5 leads to protection switch device 1.Therefore can interruptive current path by cut-off switch contact.
Shown in Figure 1A, have the protection switch device 1 of closed switch contact, fixing touch logical part 4 and mobile touch logical part 5 directly touch logical, thereby make the electric current described switch contact of can flowing through.In being also referred to as the position of closure-position (EIN-stellung), input adapter is connected mutually conductively with out splice going splice.If switch contact touches logical part 4 and removes and disconnect from fixing by movement being touched to logical part 5, as long as make switch contact energising in the moment disconnecting, will touch logical part 4 and mobile touching between logical part 5 form electric arc 9 fixing.The beginning disconnecting at contact shown in Figure 1B.In the first area of this current path, have conductive section 24, described conductive section is configured in yoke 20.Where said conductive section more than 24 is arranged, thereby make described conductive section and touch logical part 4 and move electric arc 9 actings in conjunction of touching burning between logical part 5 fixing, thereby form the electromagnetic field generating, the field wire of described electromagnetic field is substantially perpendicular to figure plane and points in the region of switch contact.Described electromagnetic field is applied to power F on electric arc 9 and conductive section 24, and described power makes described two track sections, is that conductive section 24 and electric arc 9 push mutually.Therefore because conductive section 24 positions are fixedly placed in the housing of protection switch device 1, between conductive section 24 and electric arc 9, the power F of repulsive interaction has caused, order about electric arc 9 towards explosion chamber 7 away from conductive section and and then away from switch contact.
Therefore in the description of Figure 1B, be clear that, but the current flux I that the current flux I of the conductive section 24 that current through line connects connects with respect to the logicalnot circuit of the electric arc 9 of flowing through is substantially parallel oppositely, it is directed to be that substantially parallel opposite direction points to ground.The conduct current portion of U-shaped substantially in the region of having realized switch contact together with section in fixing region of touching logical part 4 thus.
If mobile tactile logical part 5 continues, away from described fixing tactile logical part, to start electric arc so jump to so-called guide rail 8 from definite length by the further rotation campaign of mobile contact support 6, described guide rail is connected conductively with the second end of explosion chamber 7.At electric arc, be directed in explosion chamber 7 and before extinguishing there subsequently, described electric arc is burning between the feeler 23 being connected conductively with fixing tactile logical part 4 and guide rail 8 first.
In Fig. 2 A and 2B with the magnetic triggering system 10 of the schematically illustrated protection switch device 1 of a plurality of views.By electrical interconnection 11, magnetic triggering system is connected conductively with the input adapter of protection switch device 1, described electrical interconnection both can be configured to flexible twisted wire also can be configured to rigidity.Connection line 11 is connected conductively with the first end of magnet exciting coil 12 in addition.Under the state of assembling completely, be arranged in magnet exciting coil 12 armature-push-rod assembly (not shown) mobile-bearing, thereby make the short circuit of the magnet exciting coil 12 in the situation that short circuit current is flowed through, armature attracted in magnet exciting coil 12.The described push rod being fixedly connected with armature now impacts on frizzen, the switching mechanism of trigger protection switching device 1 thus, and described switching mechanism causes the disconnection of switch contact.
Another part of magnetic triggering system 10 is that yoke 20(is also shown in Fig. 3), described yoke is configured to sheet metal bending part in an illustrated embodiment.By the subregion that is configured to electrical connecting element 21 of yoke 20, yoke 20 is connected conductively with the second end of magnet exciting coil 12.The region that is called as fixed contact support 22 that electric current I continues to flow to through conductive section 24 yoke 20 from magnet exciting coil 12 through Connection Element 21 under "on" position.In described region, fixing tactile logical part 4 is permanently connected with yoke 20.When switch contact is closed, electric current continues to flow through to fix and touches logical part 4 and mobile tactile logical part 5 and mobile contact support 6, and described mobile contact support is connected conductively with the out splice going splice of protection switch device 1 again.
When switch contact disconnects, the electric current electric arc 9 of first flowing through.After being transformed on guide rail 8, electric arc 9 (sees Figure 1A and 1B), electric current flows to through feeler 23 region that is configured to explosion chamber's plate 27 from the region that is called as fixed contact support 22 of yoke 20, and described guide rail is connected conductively with electric arc-explosion chamber 7 and is connected conductively with out splice going splice with its other end with its one end.Explosion chamber's plate 27 is upper ends of electric arc-explosion chamber 7; The lower end of electric arc-explosion chamber 7 is connected conductively with guide rail 8.If order about electric arc, enter into electric arc-explosion chamber 7, the muffler being arranged in parallel by there is so divided into a plurality of minute electric arc being mutually electrically connected in series by described electric arc.Due to described, be electrically connected in series, total arc voltage that always raises until electric arc finally interrupt and extinguish.
At electrical connecting element 21 be wherein also furnished with region inner yoke 20 bifurcateds between the fixed contact support 22 of conductive section 24 and construct, at the closed time shift moving contact rack 6 of switch contact, together with movement disposed thereon, touch between two parts of conductive section 24 of the yoke 20 that logical part 25 enters at least in part bifurcated and construct.So the electric arc 9 forming is directly contiguous with two parts of described conductive section 24, for the electromagnetic field with electric arc 9 actings in conjunction generations, obtained thus obvious higher field intensity when switch contact disconnects.Thus obviously larger long-range navigation magneticaction to electric arc 9, thereby order about electric arc 9 quickly from voltage contact area 7 motions towards explosion chamber.
Fig. 3 illustrates the schematic diagram of the yoke 20 of magnetic triggering system 10.Sheet metal bending part structure and bifurcation structure in this identifies the region of conductive section 24 especially well.In region between electrical connecting element 21 and installation elements 25, yoke 20 has opening 26, and described opening is entering at least in part magnet exciting coil 12 and is being configured to hold and guide armature-push-rod assembly under installment state.Can construct as far as possible compactly described magnetic triggering system by this way.
In described with reference to the accompanying drawings embodiment, conductive section 24 is arranged in yoke 20 and therefore and is arranged in the first area of current path.Yet equally likely, conductive section is arranged in the second area of current path, between moving contact 6 and out splice going splice.This structure with respect to the first area of current path not only can be replacement scheme but also can be additional aspects.For example can also corresponding low shaping mobile contact support 6, thus make the conductive section of mobile contact support 6 substantially parallel oppositely directed with respect to electric arc 9.
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012212236.2 | 2012-07-12 | ||
| DE102012212236.2A DE102012212236A1 (en) | 2012-07-12 | 2012-07-12 | Protection switching device and magnetic yoke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103545153A true CN103545153A (en) | 2014-01-29 |
| CN103545153B CN103545153B (en) | 2018-07-10 |
Family
ID=48190181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310292736.6A Active CN103545153B (en) | 2012-07-12 | 2013-07-12 | Protection switch device and yoke |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2685482B1 (en) |
| CN (1) | CN103545153B (en) |
| DE (1) | DE102012212236A1 (en) |
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|---|---|---|---|---|
| CN108666185B (en) * | 2017-03-31 | 2023-12-05 | 温州圣普电气有限公司 | Large-current miniature circuit breaker |
| DE102017212033A1 (en) | 2017-07-13 | 2019-01-17 | Siemens Aktiengesellschaft | DC arc extinguishing device and electromechanical DC switching device |
| DE102017214557B4 (en) | 2017-08-21 | 2024-08-08 | Siemens Aktiengesellschaft | Electromechanical protective switching device |
| CN108074782B (en) * | 2017-12-05 | 2024-09-20 | 北京德威特电气科技股份有限公司 | Instantaneous switch and circuit breaker with same |
| DE102019117802A1 (en) * | 2019-07-02 | 2021-01-07 | Johnson Electric Germany GmbH & Co. KG | Switching contact system of a switching device operated by electrical current |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0231600A1 (en) * | 1985-11-25 | 1987-08-12 | Matsushita Electric Works, Ltd. | Current limiting circuit interrupter |
| CN1028264C (en) * | 1992-07-02 | 1995-04-19 | 三菱电机株式会社 | switch |
| CN1063577C (en) * | 1995-08-03 | 2001-03-21 | 富士电机株式会社 | Circuit breaker |
| DE10058874A1 (en) * | 2000-11-27 | 2002-03-21 | Siemens Ag | Meandering conductor coil e.g. for relay or protection switch, has folded conductor band providing self-supporting body with axial coil core reception space |
| CN100468600C (en) * | 2003-11-11 | 2009-03-11 | 西门子公司 | Arc extinguishing device |
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| DE2841004C2 (en) | 1978-09-21 | 1980-10-02 | Licentia Gmbh | Circuit breaker with additional blow loop |
| DD211668A1 (en) | 1982-11-11 | 1984-07-18 | Elektroinstallation Annaberg V | CIRCUIT PROTECTION SWITCH WITH A CONTACT ASSEMBLY CONSTRUCTING A BLOW LOOP |
| US5583328A (en) * | 1992-07-02 | 1996-12-10 | Mitsubishi Denki Kabushiki Kaisha | High voltage switch including U-shaped, slitted stationary contact assembly with arc extinguishing/magnetic blowout features |
| DE19524915C2 (en) * | 1995-07-08 | 2003-06-26 | Abb Patent Gmbh | Arc extinguishing arrangement for an electrical switch, in particular for a circuit breaker |
| DE29823717U1 (en) * | 1998-08-13 | 1999-10-14 | Siemens AG, 80333 München | Miniature circuit breaker with arc operated blow coil |
| EP1548773B1 (en) * | 2003-12-22 | 2008-03-26 | ABB Schweiz AG | Arc extinguishing installation for a circuit breaker with a double break |
| DE102010036215A1 (en) * | 2010-09-01 | 2012-03-01 | Siemens Aktiengesellschaft | Electrical circuit breaker |
-
2012
- 2012-07-12 DE DE102012212236.2A patent/DE102012212236A1/en not_active Withdrawn
-
2013
- 2013-04-24 EP EP13165024.4A patent/EP2685482B1/en active Active
- 2013-07-12 CN CN201310292736.6A patent/CN103545153B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0231600A1 (en) * | 1985-11-25 | 1987-08-12 | Matsushita Electric Works, Ltd. | Current limiting circuit interrupter |
| CN1028264C (en) * | 1992-07-02 | 1995-04-19 | 三菱电机株式会社 | switch |
| CN1063577C (en) * | 1995-08-03 | 2001-03-21 | 富士电机株式会社 | Circuit breaker |
| DE10058874A1 (en) * | 2000-11-27 | 2002-03-21 | Siemens Ag | Meandering conductor coil e.g. for relay or protection switch, has folded conductor band providing self-supporting body with axial coil core reception space |
| CN100468600C (en) * | 2003-11-11 | 2009-03-11 | 西门子公司 | Arc extinguishing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103545153B (en) | 2018-07-10 |
| EP2685482A1 (en) | 2014-01-15 |
| DE102012212236A1 (en) | 2014-01-16 |
| EP2685482B1 (en) | 2017-05-31 |
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