CN104319169B - Arc-chutes and use the chopper of these arc-chutes - Google Patents
Arc-chutes and use the chopper of these arc-chutes Download PDFInfo
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- CN104319169B CN104319169B CN201410170487.8A CN201410170487A CN104319169B CN 104319169 B CN104319169 B CN 104319169B CN 201410170487 A CN201410170487 A CN 201410170487A CN 104319169 B CN104319169 B CN 104319169B
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- extinguishing mechanism
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- 239000012141 concentrate Substances 0.000 abstract description 2
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 22
- 239000007789 gas Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 7
- 238000010891 electric arc Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000002679 ablation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
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Abstract
nullThe invention discloses a kind of arc-chutes and use the chopper of these arc-chutes，Dynamic main contact in these arc-chutes、One or two in moving arcing contact and arc-extinguishing mechanism is located at an exit of arc-chutes，Remaining is located at another exit of arc-chutes，Arc-extinguishing mechanism、Dynamic main contact and moving arcing contact are positioned at two of the same exit of arc-chutes connected by Synchronous Transmission fastened to each other、And be connected by peripheral connecting rod Synchronous Transmission with another，This actually achieves and splits arc-chutes internal moving parts to two exits，Compared with in existing arc-chutes, moving component all concentrates on the structure of moved end，The arc-chutes of the present invention obviously can simplify the structure of former movable end of arc extinguishing chamber，The most also (the quiet end of former arc-chutes is the most fairly simple will to bring the biggest burden to the quiet end of arc-chutes，And owing to mate with moved end，It is bigger that its volume designs，The problem that there is segment space waste)，Thus these arc-chutes solve the baroque problem in one end of existing arc-chutes.
Description
Technical field
The present invention relates to a kind of arc-chutes and use the chopper of these arc-chutes.
Background technology
nullAt present，The cylinder and the spout that compress arc extinguishing gases in antivacuum primary cut-out integrate，A kind of arc-extinguishing chamber of circuit breaker as disclosed in the Chinese patent that notification number is CN 202102959 U，It is included in that divide-shut brake direction is positioned opposite first、Two exits，Quiet main contact and static arc contact it is installed with on first exit，Second exit is provided with dynamic main contact、Moving arcing contact、Two grades of spouts and one-level spout and arc-extinguishing mechanism，Arc-extinguishing mechanism includes cylinder body and the piston of winding-up cylinder，Second contact module is installed on cylinder body，It is fixed with on cylinder body and guides the center pull rod being installed on piston along divide-shut brake direction，The plenum chamber of arc-extinguishing mechanism and one、Two grades of spout connections，When separating brake，Pull center pull rod，Center pull rod drives cylinder body、Move main contact together with moving arcing contact towards piston movement，So that plenum chamber is compressed，Move main contact simultaneously and quiet main contact disengages，By compressed gas from one in plenum chamber、Two grades of spouts spray，Play the effect of arc extinguishing，But it is too fat to move to there is the second leading-out terminal structure complexity in this arc extinguishing structure、The problem being difficult to reduce diameter itself，As needed integrated two grades of spouts on the cylinder of moved end、One-level spout、Moving arcing contact、Center pull rod、More than the four kinds parts such as dynamic main contact，When being mutually linked effect of these parts of design，Need to consider integrated above-mentioned part in limited space，So the space structure to part、Size quality、The requirement of technical parameter is higher，The design difficulty and the manufacture difficulty that cause whole chopper the second exit are the biggest.
Summary of the invention
It is an object of the invention to provide a kind of arc-chutes, additionally provide the chopper using these arc-chutes, it is intended to solve the problem that in prior art, arc-extinguishing mechanism place leading-out terminal structure is complicated simultaneously.
In order to realize object above, in the present invention, the technical scheme of arc-chutes is as follows:
Arc-chutes, described arc-chutes have two exits positioned opposite along divide-shut brake direction, it includes main contact, arcing contact and arc-extinguishing mechanism, main contact includes dynamic main contact and quiet main contact, arcing contact includes moving arcing contact and static arc contact, described dynamic main contact, one or two in moving arcing contact and arc-extinguishing mechanism is located at an exit of arc-chutes, remaining is located at another exit of arc-chutes, arc-extinguishing mechanism, dynamic main contact and moving arcing contact are positioned at two of the same exit of arc-chutes connected by Synchronous Transmission fastened to each other, and be connected by peripheral connecting rod Synchronous Transmission with another.
Described peripheral connecting rod is located at arc-extinguishing mechanism, dynamic main contact and the radial outer periphery of moving arcing contact.
Described dynamic main contact and moving arcing contact are located at the same exit of arc-chutes, and arc-extinguishing mechanism is located at another exit of arc-chutes, and arc-extinguishing mechanism connects center rod, and center rod is connected with peripheral connecting rod Synchronous Transmission.
It is fixed together by the union joint being radially arranged along arc-chutes between described center rod and peripheral connecting rod.
Described arc-extinguishing mechanism offers on the piston of arc-extinguishing mechanism the vent-hole extended along divide-shut brake direction, piston is provided with for being closed vent-hole when the plenum chamber of arc-extinguishing mechanism compresses, opening the valve of vent-hole when plenum chamber expands.
In the present invention, the technical scheme of chopper is as follows:
Chopper, including arc-chutes, described arc-chutes have two exits positioned opposite along divide-shut brake direction, it includes main contact, arcing contact and arc-extinguishing mechanism, main contact includes dynamic main contact and quiet main contact, arcing contact includes moving arcing contact and static arc contact, described dynamic main contact, one or two in moving arcing contact and arc-extinguishing mechanism is located at an exit of arc-chutes, remaining is located at another exit of arc-chutes, arc-extinguishing mechanism, dynamic main contact and moving arcing contact are positioned at two of the same exit of arc-chutes connected by Synchronous Transmission fastened to each other, and be connected by peripheral connecting rod Synchronous Transmission with another.
Described peripheral connecting rod is located at arc-extinguishing mechanism, dynamic main contact and the radial outer periphery of moving arcing contact.
Described dynamic main contact and moving arcing contact are located at the same exit of arc-chutes, and arc-extinguishing mechanism is located at another exit of arc-chutes, and arc-extinguishing mechanism connects center rod, and center rod is connected with peripheral connecting rod Synchronous Transmission.
It is fixed together by the union joint being radially arranged along arc-chutes between described center rod and peripheral connecting rod.
Described arc-extinguishing mechanism offers on the piston of arc-extinguishing mechanism the vent-hole extended along divide-shut brake direction, piston is provided with for being closed vent-hole when the plenum chamber of arc-extinguishing mechanism compresses, opening the valve of vent-hole when plenum chamber expands.
One or two in dynamic main contact, moving arcing contact and arc-extinguishing mechanism is located at an exit of arc-chutes by the present invention, remaining is located at another exit of arc-chutes, is positioned at two of the same exit of arc-chutes and is connected by Synchronous Transmission fastened to each other and be connected by periphery connecting rod Synchronous Transmission with another in arc-extinguishing mechanism, dynamic main contact and moving arcing contact.This actually achieves and splits arc-chutes internal moving parts to two exits, compared with in existing arc-chutes, moving component all concentrates on the structure of moved end, the arc-chutes of the present invention obviously can simplify the structure of former movable end of arc extinguishing chamber, the most also (the quiet end of former arc-chutes is the most fairly simple will to bring the biggest burden to the quiet end of arc-chutes, and owing to mate with moved end, it is bigger that its volume designs, the problem that there is segment space waste), thus these arc-chutes solve the baroque problem in one end of existing arc-chutes.Meanwhile, arc-extinguishing mechanism, dynamic main contact and moving arcing contact being connected by peripheral pull bar Synchronous Transmission is to realize being precisely controlled they running orders and time point.
Accompanying drawing explanation
Fig. 1 is the front view of arc-extinguishing chamber of circuit breaker in embodiments of the invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is that the A-A of Fig. 1 is to sectional view；
Fig. 4 is that the B-B of Fig. 2 is to sectional view；
Fig. 5 is the left view of Fig. 1；
Fig. 6 is that the C-C of Fig. 4 is to sectional view.
Detailed description of the invention
nullThe embodiment of chopper in the present invention: as shown in Figures 1 to 6，This chopper includes arc-chutes，And the divide-shut brake direction setting moved end and quiet end in arc-chutes is on left and right directions，These arc-chutes include the first exit of being oppositely arranged of left and right and the second exit，Wherein it is installed with the first conductor 14 on the first exit，Inwall upper limit at the first conductor 14 is installed with two annular first and connects electrical contact finger 16 and the first guide ring 15，Two the first guide rings 15 are disposed on two first and connect electrical contact finger 16 left and right sides，In two the first guide rings 15, left and right guides the dynamic main contact 17 being coated with pipe box shape，It is installed with the moving arcing contact 18 of the hollow rod shape that left and right extends by the reinforcement radially extended on the left end inwall of dynamic main contact 17，Moving arcing contact 18 is co-axially located in dynamic main contact 17，The front end of the driven main contact in front end 17 of moving arcing contact 18 is stretched out，And moving arcing contact 18 and dynamic main contact 17 constitute left and right and guide the first contact module being assemblied on the first exit；nullSecond exit is provided with the arc-extinguishing mechanism that left and right extends，Cylinder body 4 is fixed on the second exit，The piston 5 of arc-extinguishing mechanism coaxial guiding in left-right direction is assemblied in cylinder body 4，Piston 5 is fixed with the shaft-like center pull rod 6 overhang to the right，And on the periphery of cylinder body 4, it is installed with the second conductor 3，The front end docking of the second conductor 3 is fixed with the quiet main contact 26 of the pipe box shape being connected on cylinder body 4 periphery，Projecting end periphery upper limit at quiet main contact 26 is installed with the second guide ring 13，Periphery, the front end upper limit of quiet main contact 26 is installed with two annular second and connects electrical contact finger 12，The two grades of spouts 11 being connected on cylinder body 4 left side coaxially it are equipped with in quiet main contact 26，In two grades of spouts 11, coaxial spaced is equipped with the one-level spout 10 being installed on arc-extinguishing mechanism gas outlet and the static arc contact 19 of pipe box shape being coaxially installed on one-level spout 10 periphery，The most quiet main contact 26、Static arc contact 19、Two grades of spouts 11 and one-level spout 10 composition have the second contact module of spout.
In the first contact module, the left end docking of dynamic main contact 17 is fixed with the conductor seat 20 of pipe box shape, between center pull rod 6 and conductor seat 20, bridge joint has holding to synchronize homodromous driving member, driving member has two and circumferentially-spaced uniform at the first contact module, and i.e. two driving members are arranged symmetrically in the opposing both sides of the first contact module.The second union joint 25 that driving member includes the insulation plate-shaped being connected on center pull rod 6 right-hand member, the first union joint of the insulation plate-shaped being connected on conductor seat 20 left end and bridge joint transmission arm between the first union joint and the second union joint 25, wherein the second union joint 25 radially overhangs peripheral to the second conductor 3 along cylinder body 4, first union joint overhangs along the radial direction of conductor seat 20, and the long guiding hole that extends of the left and right offered from the first exit passes, and the two ends, left and right of transmission arm are respectively fixedly connected with on the projecting end of the first union joint and the second union joint 25.Transmission arm includes the peripheral pull bar 21 that the reinforcing plate 24 insulated and four intervals are arranged side by side, reinforcing plate 24 is the arc shoe plate of the axis bending extended around divide-shut brake direction, each peripheral pull bar 21 is arranged at reinforcing plate 24 overbending direction interval, the two ends of each peripheral pull bar 21 are installed on two union joints respectively, the middle part of each peripheral pull bar 21 is embedded in reinforcing plate 24, and the middle part of i.e. peripheral pull bar 21 is reinforced that plate 24 wraps up and two ends are exposed outside reinforcing plate 24.
The inwall of the first conductor 14 is installed with the electro-conductive liner 23 of the steel being in conductor seat 20 and dynamic main contact 17 periphery.
Separating brake distance between moving arcing contact 18 and static arc contact 19 is less than dynamic separating brake distance between main contact 17 and quiet main contact 26.
First exit is provided with the first radome 1 being fixedly set on the first conductor 14 periphery, the second exit is provided with the secondary shielding cover 2 being fixedly set on the second conductor 3, and two driving members are all installed in the first radome 1 and secondary shielding cover 2.
Offering an annular gathering sill on the periphery of the piston 5 of arc-extinguishing mechanism, in gathering sill, limiting card is equipped with piston packing 8, and the cross section of this piston packing 8 is shaped cross-section.Piston 5 offers the vent-hole that left and right extends, the left side plenum chamber of this vent-hole connection arc-extinguishing mechanism and right side exocoel, the left side of piston 5 is installed with the piston head 9 of cap shape and the valve block 7 of lamellar, this valve block 7 can ensure piston 5 vent-hole when left movement become seal up, the vent-hole connection plenum chamber when piston 5 moves right so that valve block 7 is formed for being closed vent-hole when the plenum chamber of arc-extinguishing mechanism compresses, opening the valve of vent-hole when plenum chamber expands at the left end of piston 5.
The effect of electro-conductive liner is to prevent during arc extinguishing, the electric arc ablation to the first contact module.Piston packing 8 on piston 5 uses monocycle double recess, and its effect is while reducing guiding resistance, increases air-tightness when piston 5 moves.Piston head 9 selects steel piston head 9, and its effect is to prevent electric arc during combined floodgate, reclosing from entering arc-extinguishing mechanism ablation piston 5.Moving arcing contact 18 is set to the spout pressure when purpose of hollow structure is to reduce separating brake, thus reduces operating work.One-level spout 10 uses spiral nozzle structure, is sprayed in a rotative pattern by arc extinguishing gases during effect, extinguishes with assistant electric arc.Dynamic main contact 17 and the first conductor 14 contact portion use two the first guide rings 15 to realize guiding, and ensure the axiality of dynamic main contact 17 to greatest extent.The design of two driving members is to ensure that reliable transmission and the axiality of dynamic main contact 17.It is then the diameter in order to reduce chopper further that reinforcing plate 24 is designed as arc shoe plate, and makes driving member press close to breaker body to greatest extent, thus realizes reducing chopper diameter.Reinforcing plate 24 uses insulant and is wrapped up by peripheral pull bar 21, is to prevent thinner peripheral pull bar 21 not enough because of self-strength, causing the deformation in motor process.
In the present embodiment, chopper is when separating brake, when center pull rod 6 is pulled to the right beginning to be moved to sub-gate position by closing position, the second union joint 25 on centrally disposed pull bar 6 drives transmission arm, the first union joint, conductor seat 20 to move to open position, the dynamic main contact 17 being simultaneously located on conductor seat 20 and moving arcing contact 18 start to depart from quiet main contact 26 and static arc contact 19, and the i.e. first contact module departs from from the second contact module.When departing from quiet main contact 26 at dynamic main contact 17, moving arcing contact 18 with static arc contact 19 also in contacting time, piston 5 on centrally disposed pull bar 6 starts the gas advanced in the plenum chamber of arc-extinguishing mechanism, the vent-hole on valve block 7 closed piston 5 being simultaneously located on piston 5；When moving arcing contact 18 and static arc contact 19 depart from and produce electric arc, compressed gas sprays from the gas channel between one-level spout 10 and two grades of spouts 11 and static arc contact 19, discharges from the cavity of the first conductor 14, the end until separating brake puts in place.
When closing a floodgate, when center pull rod 6 starts to be moved to closing position by sub-gate position, the second union joint 25 on centrally disposed pull bar 6, transmission arm, the first union joint and conductor seat 20 is driven to move to closing position, the dynamic main contact 17 being simultaneously located on conductor seat 20 and moving arcing contact 18 come into contact with quiet main contact 26 and static arc contact 19, and the i.e. first contact module starts to engage on the second contact module.When dynamic main contact 17 not yet contacts with quiet main contact 26, when moving arcing contact 18 and static arc contact 19 come into contact with, piston 5 on centrally disposed pull bar 6 starts to exit arc-extinguishing mechanism, and suck gas from two grades of spouts 11 and the vent-hole being arranged on piston 5, at this moment the valve block 7 being arranged on piston 5, opens the vent-hole on piston 5；Before moving arcing contact 18 contacts with static arc contact 19, electric arc can be produced in a flash, but along with moving arcing contact 18 contacts with static arc contact 19, electric arc can disappear, move main contact 17 subsequently and contact with quiet main contact 26, the end until separating brake puts in place.
Therefore in the present embodiment, chopper uses adverse movement structure, change into being completed by two different parts by common air blowing arc extinguishing, separating brake two motions completed by same parts of motion, wherein the blow arc-extinguishing mechanism of arc extinguishing, spout, static arc contact 19 is fixed structure, compressed gas is promoted piston 5 to complete by center pull rod 6, and separating brake motion is then promoted the first contact module to complete by driving member.
In the above-described embodiments, in arc-extinguishing mechanism, piston is connected in center pull rod, cylinder body and the second contact module are connected, in other embodiments, piston can also be connected on the second modular unit, cylinder body should be connected in center pull rod simultaneously, is i.e. realized the harmomegathus of plenum chamber by center pull rod driving cylinder body action.
In the above-described embodiments, being provided with valve to control QI invigorating and the aerofluxus of plenum chamber on piston, in other embodiments, piston can also be solid cock body, and corresponding realizes QI invigorating by the position such as spout, cylinder body.
In the above-described embodiments, center pull rod and the coordination of the first contact module is ensured by driving member, and center pull rod is driving link, in other embodiments, first contact module can also be driving link, or even first contact module and center pull rod can be driven separately, especially when the first contact module and center pull rod are driven separately, driving member can be got rid of.
In the above-described embodiments, it is peripheral that the first conductor is in the first contact module, and it is peripheral that the second conductor is in the second contact module, and in other embodiments, conductor can also directly be connected on corresponding contact module.
In the above-described embodiments, dynamic main contact is inserted in quiet main contact when closing a floodgate, and in other embodiments, dynamic main contact can also be sleeved on quiet main contact periphery when closing a floodgate.
In the above-described embodiments, the separating brake distance between moving arcing contact and static arc contact is less than dynamic separating brake distance between main contact and quiet main contact, and after ensureing that main contact separates, arcing contact still contacts；After arcing contact contact, main contact also not in contact with, arc extinguishing and the effect of the front arc extinguishing that closes a floodgate after reaching separating brake, in other embodiments, separating brake distance between moving arcing contact and static arc contact can also be not less than dynamic separating brake distance between main contact and quiet main contact, and corresponding deciliter action is that main contact cut-offs with arcing contact simultaneously or arcing contact first separates, contacts after arcing contact when closing a floodgate during separating brake.
In the above-described embodiments, first contact module comprises the dynamic main contact and moving arcing contact being fixedly connected with mutually, second contact module comprises quiet main contact and static arc contact, in other embodiments, dynamic main contact and moving arcing contact can also be in different contact modules, corresponding arc-extinguishing mechanism can also be connected with center rod by its cylinder, or is respectively provided with corresponding connecting rod on the cylinder and piston of arc-extinguishing mechanism, thus drives cylinder and piston relative motion；Arc-extinguishing mechanism and dynamic main contact can also be located at the same exit of arc-chutes, moving arcing contact is located at another exit of arc-chutes, or arc-extinguishing mechanism and moving arcing contact are located at the same exit of arc-chutes, dynamic main contact is located at another exit of arc-chutes.
The embodiment of arc-chutes in the present invention, in the present embodiment, the structure of arc-chutes is identical with the structure of arc-chutes in above-described embodiment, therefore repeats no more.
Claims (4)
- null1. arc-chutes，Described arc-chutes have two exits positioned opposite along divide-shut brake direction，It includes main contact、Arcing contact and arc-extinguishing mechanism，Main contact includes dynamic main contact and quiet main contact，Arcing contact includes moving arcing contact and static arc contact，It is characterized in that，Described dynamic main contact、One or two in moving arcing contact and arc-extinguishing mechanism is located at an exit of arc-chutes，Remaining is located at another exit of arc-chutes，Arc-extinguishing mechanism、Dynamic main contact and moving arcing contact are positioned at two of the same exit of arc-chutes connected by Synchronous Transmission fastened to each other、And be connected by peripheral connecting rod Synchronous Transmission with another，Arc-extinguishing mechanism is located at by described peripheral connecting rod、Dynamic main contact and the radial outer periphery of moving arcing contact，Described dynamic main contact and moving arcing contact are located at the same exit of arc-chutes，Arc-extinguishing mechanism is located at another exit of arc-chutes，Arc-extinguishing mechanism connects center rod，Center rod is connected with peripheral connecting rod Synchronous Transmission，It is fixed together by the union joint being radially arranged along arc-chutes between described center rod and peripheral connecting rod，The two ends of each peripheral pull bar are installed on two union joints respectively，The middle part of each peripheral pull bar is embedded in reinforcing plate，Reinforcing plate is the arc shoe plate around axis bending extended around divide-shut brake direction，Each peripheral pull bar is arranged at reinforcing plate overbending direction interval.
- Arc-chutes the most according to claim 1, it is characterized in that, described arc-extinguishing mechanism offers on the piston of arc-extinguishing mechanism the vent-hole extended along divide-shut brake direction, piston is provided with for being closed vent-hole when the plenum chamber of arc-extinguishing mechanism compresses, opening the valve of vent-hole when plenum chamber expands.
- null3. chopper，Including arc-chutes，Described arc-chutes have two exits positioned opposite along divide-shut brake direction，It includes main contact、Arcing contact and arc-extinguishing mechanism，Main contact includes dynamic main contact and quiet main contact，Arcing contact includes moving arcing contact and static arc contact，It is characterized in that，Described dynamic main contact、One or two in moving arcing contact and arc-extinguishing mechanism is located at an exit of arc-chutes，Remaining is located at another exit of arc-chutes，Arc-extinguishing mechanism、Dynamic main contact and moving arcing contact are positioned at two of the same exit of arc-chutes connected by Synchronous Transmission fastened to each other、And be connected by peripheral connecting rod Synchronous Transmission with another，Arc-extinguishing mechanism is located at by described peripheral connecting rod、Dynamic main contact and the radial outer periphery of moving arcing contact，Described dynamic main contact and moving arcing contact are located at the same exit of arc-chutes，Arc-extinguishing mechanism is located at another exit of arc-chutes，Arc-extinguishing mechanism connects center rod，Center rod is connected with peripheral connecting rod Synchronous Transmission，It is fixed together by the union joint being radially arranged along arc-chutes between described center rod and peripheral connecting rod，The two ends of each peripheral pull bar are installed on two union joints respectively，The middle part of each peripheral pull bar is embedded in reinforcing plate，Reinforcing plate is the arc shoe plate around axis bending extended around divide-shut brake direction，Each peripheral pull bar is arranged at reinforcing plate overbending direction interval.
- Chopper the most according to claim 3, it is characterized in that, described arc-extinguishing mechanism offers on the piston of arc-extinguishing mechanism the vent-hole extended along divide-shut brake direction, piston is provided with for being closed vent-hole when the plenum chamber of arc-extinguishing mechanism compresses, opening the valve of vent-hole when plenum chamber expands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170487.8A CN104319169B (en) | 2014-04-25 | Arc-chutes and use the chopper of these arc-chutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170487.8A CN104319169B (en) | 2014-04-25 | Arc-chutes and use the chopper of these arc-chutes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104319169A CN104319169A (en) | 2015-01-28 |
| CN104319169B true CN104319169B (en) | 2016-11-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH571763A5 (en) * | 1974-07-24 | 1976-01-15 | Sprecher & Schuh Ag | Temperature-compensated piston-operated pressure gas switch - uses heat sink for switching cylinders to equalize temperature conditions |
| CN202102959U (en) * | 2011-06-01 | 2012-01-04 | 厦门华电开关有限公司 | Circuit breaker arc-extinguishing chamber |
| CN102473549A (en) * | 2009-06-29 | 2012-05-23 | 株式会社东芝 | Gas circuit breaker with reset ohmic contact, and method for resetting and tripping same |
| CN104299841A (en) * | 2014-04-25 | 2015-01-21 | 国家电网公司 | Arc extinguishing chamber and circuit breaker using mechanism |
| CN104299840A (en) * | 2014-04-25 | 2015-01-21 | 国家电网公司 | Arc extinguishing chamber and circuit breaker using mechanism |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH571763A5 (en) * | 1974-07-24 | 1976-01-15 | Sprecher & Schuh Ag | Temperature-compensated piston-operated pressure gas switch - uses heat sink for switching cylinders to equalize temperature conditions |
| CN102473549A (en) * | 2009-06-29 | 2012-05-23 | 株式会社东芝 | Gas circuit breaker with reset ohmic contact, and method for resetting and tripping same |
| CN202102959U (en) * | 2011-06-01 | 2012-01-04 | 厦门华电开关有限公司 | Circuit breaker arc-extinguishing chamber |
| CN104299841A (en) * | 2014-04-25 | 2015-01-21 | 国家电网公司 | Arc extinguishing chamber and circuit breaker using mechanism |
| CN104299840A (en) * | 2014-04-25 | 2015-01-21 | 国家电网公司 | Arc extinguishing chamber and circuit breaker using mechanism |
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