CN104616927A - Blowing arc extinguishing chamber of breaker - Google Patents
Blowing arc extinguishing chamber of breaker Download PDFInfo
- Publication number
- CN104616927A CN104616927A CN201510053888.XA CN201510053888A CN104616927A CN 104616927 A CN104616927 A CN 104616927A CN 201510053888 A CN201510053888 A CN 201510053888A CN 104616927 A CN104616927 A CN 104616927A
- Authority
- CN
- China
- Prior art keywords
- contact
- arc
- dynamic
- slide assemblies
- arc extinguishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H01H33/22—Selection of fluids for arc-extinguishing
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
- H01H33/74—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber wherein the break is in gas
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a blowing arc extinguishing chamber of a breaker. The blowing arc extinguishing chamber comprises a static component, a moveable component, a sliding component and an insulated internal cylinder, wherein the sliding component is assembled on the insulated internal cylinder, one end of the moveable component is installed in the insulated internal cylinder, and the other end passes through the sliding component; a closed space is formed among the moveable component, the sliding component and the insulated internal cylinder. The blowing arc extinguishing chamber is characterized in that three-way absorption and two-way blowing of the arc extinguishing gas and the electric arc extinguishing can be realized according to the volume change of the closed space formed among the moveable component, the sliding component and the insulated internal cylinder, so that the arc is efficiently extinguished. In comparison with an existing technology, the beneficial effect of blowing arc extinguishing chamber is that the closed space can be quickly and fully filled with arc extinguishing gas so that reliable and enough arc extinguishing gas can be provided to disconnect the breaker; a two-way blowing arc extinguishing manner is adopted so that the electric arc can be quickly and effectively extinguished; the blowing arc extinguishing chamber can be greatly reduced in volume and has the advantages of low gas pressure, energy conservation, environment protection, and long electrical and mechanical service life, thus the chamber can operate at low air pressure.
Description
Technical field
The present invention relates to a kind of arc-extinguishing chamber of circuit breaker, more specifically to a kind of circuit breaker air blowing arc control device.
Background technology
The arc-extinguishing chamber of circuit breaker of existing conventional arc-extinguishing chamber of circuit breaker many employings vacuum extinction, the shortcoming of this arc-extinguishing chamber of circuit breaker is: arc-extinguishing chamber of circuit breaker needs higher vacuum degree; Dynamic/static contact device is opened apart from smaller, in general opens apart between 8-16 millimeter, requires high, easily produce overvoltage when cut-offfing capacitive, inductance current to divide-shut brake speed and synchronism; In order to ensure the reliable disjunction of vacuum circuit-breaker, usually need or end opening increase isolating switch suitable for reading at circuit breaker device, to guarantee having large disjunction distance.
Summary of the invention
Technical problem to be solved by this invention is the above-mentioned shortcoming for prior art, a kind of circuit breaker air blowing arc control device are provided, electric arc can be blown out by this circuit breaker air blowing arc control device quickly and effectively, and electric life is long, mechanical endurance is long, volume is little, can work at low pressure.The technical scheme adopted is as follows:
A kind of circuit breaker air blowing arc control device, comprise quiet assembly, dynamic assembly, slide assemblies and insulation inner core, described slide assemblies is assemblied on insulation inner core, dynamic assembly one end is arranged in insulation inner core, the other end, through slide assemblies, is characterized in that: described quiet assembly comprises static arc contact, fixed contact sheet, and described dynamic assembly comprises moving arcing contact, dynamic main contact, described slide assemblies comprises sliding contact, slip fingertip, described dynamic assembly, can form confined space between slide assemblies and insulation inner core; The change in volume of confined space that described circuit breaker air blowing arc control device utilize dynamic assembly, formed between slide assemblies and insulation inner core, has come three-dimensional inspiration and two-way blowout arc extinguishing gases, extinguish arcs, has realized efficient arc extinguishing; When dynamic assembly moves upward, dynamic assembly, confined space volumetric spaces between slide assemblies and insulation inner core become and form negative pressure greatly, and from three direction inspiration arc extinguishing gases, moving arcing contact slowly inserts static arc contact.When dynamic assembly moves downward, fixed contact sheet exits dynamic main contact, moving arcing contact also exits static arc contact thereupon, now can produce electric arc instantaneously, meanwhile moving arcing contact still firmly pushes down static arc contact, and dynamic assembly, confined space gradually between slide assemblies and insulation inner core diminish formation malleation, after the insufflation channel that dynamic for arc extinguishing gases press-in main contact, moving arcing contact and lower radome are formed is arrived electric arc place, by static arc contact and dynamic main contact hollow parts respectively toward top, the two-way air blowing in below, thus cooling electric arc being extinguished rapidly.By two-way air blowing arc extinguishing, the arc extinguishing ability of arc-extinguishing chamber of circuit breaker significantly can be improved.Because the dynamic assembly of described arc-extinguishing chamber of circuit breaker, slide assemblies and insulation inner core match, at dynamic assembly, between slide assemblies and insulation inner core, define one piece of confined space, in divide-shut brake process, change the volume in this space, get final product inspiration and ejection arc extinguishing gases, realize the function of arc extinguishing.
Preferably scheme, described quiet assembly also comprises junction block, fixed contact cover, fixed contact sheet stage clip, and described static arc contact, fixed contact cover, fixed contact sheet, fixed contact sheet stage clip are assembled on junction block and form quiet assembly.
Preferably scheme, every sheet fixed contact sheet of described quiet assembly has a slice fixed contact sheet stage clip to push down respectively.Like this, every sheet fixed contact sheet all produces certain pretightning force, makes fixed contact sheet and dynamic main contact have good contact during combined floodgate.
Preferably scheme, described dynamic assembly also comprises moving arcing contact inner-outer sleeve, moving contact positioning sleeve and upper and lower radome, and described moving arcing contact, moving arcing contact inner-outer sleeve, up and down radome and moving contact positioning sleeve are assembled to the dynamic assembly of composition on dynamic main contact.Like this, dynamic main contact, moving arcing contact, up and down radome and moving contact positioning sleeve are defined the entirety of a motion, only need drive main contact, the efficient divide-shut brake fast of arc-extinguishing chamber of circuit breaker can be realized.
Preferably scheme, the radome up and down of described dynamic assembly adopts polytetrafluoroethylmaterial material to make, and radome is anchored on the screen that on dynamic main contact, formation one is good up and down.Like this, sound arcing contact encases by upper and lower radome reliably, provides a uniform magnetic field, greatly reduces required arc quenching gas pressure.
Preferably scheme, the dynamic main contact of described dynamic assembly, moving arcing contact and lower radome have suction insufflation channel.Like this, in making process, arc extinguishing gases can enter confined space respectively by air intake passage, when separating brake, is blown out by arc extinguishing gases again by air intake passage, extinguish arcs, serves efficient arc extinguishing effect fast.
Preferably scheme, described slide assemblies also comprises the upper and lower back-up ring of slip fingertip, sliding contact back-up ring and upper sealing ring, and described sliding contact, slip fingertip, the upper and lower back-up ring of slip fingertip, sliding contact back-up ring and upper sealing ring are assembled into slide assemblies.
Preferably scheme, the sliding contact of described slide assemblies has air intake passage, and on side is stamped sealing ring, when making to close a floodgate, arc extinguishing gases sucks described slide assemblies and dynamic assembly from slide assemblies, insulation inner core forms confined space.
The present invention's beneficial effect is against existing technologies as follows:
1. three-dimensional air-breathing: the present invention adopts three-dimensional air-breathing, fills up the arc extinguishing gases of confined space rapidly, for breaker open operation provides reliable sufficient arc extinguishing gases.
2. two-way air blowing arc extinguishing: the present invention adopts two-way air blowing arc extinguishing, can blow out electric arc quickly and effectively.
3. volume is little: can significantly reduced volume, and gas pressure is low, energy-conserving and environment-protective.
4. electric life is long: arcing contact is separated completely with main contact, decreases the wearing and tearing of main contact, and adopts hollow copper tungsten alloy arcing contact, makes arc root unstable, for arc extinguishing provides good basis.
5. mechanical endurance is long: the contact self-centering structure of this patent and larger PT positional tolerance can revise the malaignment of wearing and tearing and causing, and operation is reliable, and mechanical endurance is strong, can reach 10000 times.
6. can work at low pressure: this patent is in atmospheric level, and circuit breaker still keeps enough insulative dielectric performances, safe and reliable when guaranteeing that load cut-offs.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the preferred embodiment of the present invention;
Fig. 2 is the cutaway view of the quiet assembly of the preferred embodiment of the present invention;
Fig. 3 is the cutaway view that the preferred embodiment of the present invention moves assembly;
Fig. 4 is the cutaway view of preferred embodiment of the present invention slide assemblies;
Fig. 5 is the cutaway view in preferred embodiment of the present invention making process;
Fig. 6 is that the preferred embodiment of the present invention is closed a floodgate the cutaway view put in place under state;
Fig. 7 is the cutaway view in preferred embodiment of the present invention separating brake process;
Fig. 8 is the cutaway view that preferred embodiment of the present invention separating brake puts in place under state.
Embodiment
As shown in figures 1-8, the circuit breaker air blowing arc control device in this preferred embodiment comprise quiet assembly 1, dynamic assembly 2, slide assemblies 4 and interior insulating cylinder 5.
Described static arc contact 6, fixed contact cover 7, fixed contact sheet 8, fixed contact sheet stage clip 9 are separately fixed on junction block 5, form quiet assembly 1.
Described moving arcing contact inner sleeve 11 to be put in moving arcing contact 15 and is anchored on dynamic main contact 16, moving arcing contact overcoat 10 is put in lower radome 14, is placed on outside moving arcing contact 15, and lower radome 14 is pressed in dynamic main contact 16, together with upper radome 13 and moving contact positioning sleeve 12, the dynamic assembly 2 of composition.
On described slip fingertip, slip fingertip, under back-up ring 18 and slip fingertip, back-up ring 22 is loaded in sliding contact 21, together with sliding contact back-up ring 23 and upper sealing ring 19, composition slide assemblies 3.
The static arc contact 6 of the arc control device of described circuit breaker, fixed contact cover 7, fixed contact sheet 8, fixed contact sheet stage clip 9 are separately fixed on junction block 5, constitute the quiet assembly 1 of on-load switch.
The moving arcing contact inner sleeve 11 of described on-load switch to be put in moving arcing contact 15 and is anchored on dynamic main contact 16, moving arcing contact overcoat 10 is put in lower radome 14, be placed on outside moving arcing contact 15, lower radome 14 is pressed in dynamic main contact 16, forms the dynamic assembly 2 of on-load switch together with upper radome 13 and moving contact positioning sleeve 12.
Dynamic assembly one end of the arc control device of described circuit breaker to be arranged in insulation inner core 4, and the other end is through slide assemblies 3.
Every sheet fixed contact sheet 8 of the quiet assembly 2 of described arc-extinguishing chamber of circuit breaker has a slice stage clip 9 to push down, and produces certain pretightning force, makes fixed contact sheet and dynamic main contact have good contact during combined floodgate.
The upper radome of dynamic group 2 of described arc-extinguishing chamber of circuit breaker and 13 times radomes 14 adopt polytetrafluoroethylmaterial material, are anchored on the screen that on dynamic main contact, formation one is good.
The sliding contact 21 of described arc-extinguishing chamber of circuit breaker slide assemblies has air intake passage, and on side covers sealing ring 19, when making combined floodgate, arc extinguishing gases sucks insulation inner core 4 from slide assemblies, during combined floodgate and dynamic assembly 2, insulation inner core 4 form confined space.
Described arc-extinguishing chamber of circuit breaker moves the dynamic main contact 16 of assembly, moving arcing contact 15 and lower radome 14, and each has suction insufflation channel.
Arc-extinguishing chamber of circuit breaker has two kinds of using states, is respectively moving arcing contact 15 and static arc contact 6 separately, simultaneously dynamic main contact 16 and fixed contact sheet 8 state of separating, i.e. gate-dividing state, and moving arcing contact 15 inserts static arc contact 6, dynamic main contact 16 is pressed into the state of fixed contact sheet 8 simultaneously, i.e. "on" position.
As shown in Figure 1, 2, when the dynamic main contact assembly 2 of arc-extinguishing chamber of circuit breaker moves upward, dynamic main contact assembly 2, slide assemblies 3 and the confined space volumetric spaces insulated between inner core 4 become large, inspiration arc extinguishing gases, moving arcing contact 15 slowly inserts static arc contact 6, and under spring leaf effect, fixed contact sheet 8 firmly pushes down dynamic main contact 16, the more reliable arc extinguishing gases volume that ensure that confined space, until closed a floodgate, dynamic main contact assembly 2 stop motion, when dynamic main contact assembly moves downward, fixed contact sheet 8 exits dynamic main contact 16, moving arcing contact 15 also exits static arc contact 6 thereupon, now, electric arc will be produced instantaneously, meanwhile, moving arcing contact still firmly pushes down static arc contact, and moving contact component 2, confined space gradually between slide assemblies 3 and insulation inner core 4 diminishes, by dynamic for arc extinguishing gases press-in main contact 16, the passage that the breach of moving arcing contact 15 and lower radome 14 is formed arrives electric arc place, blown toward upper and lower both direction by static arc contact 6 and dynamic main contact 16 hollow parts afterwards, thus cooling electric arc is until extinguished, treat that separating brake puts in place, main contact assembly 2 stop motion.
In addition; it should be noted that, the specific embodiment described in this specification, its each several part title etc. can be different; all equivalences of doing according to structure, feature and the principle described in inventional idea of the present invention or simple change, be included in the protection range of patent of the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (9)
1. circuit breaker air blowing arc control device, comprise quiet assembly, dynamic assembly, slide assemblies and insulation inner core, described slide assemblies is assemblied on insulation inner core, dynamic assembly one end is arranged in insulation inner core, the other end is through slide assemblies, it is characterized in that: described quiet assembly comprises static arc contact, fixed contact sheet, described dynamic assembly comprises moving arcing contact, dynamic main contact, described slide assemblies comprises sliding contact, slip fingertip, described dynamic assembly, can form confined space between slide assemblies and insulation inner core; The change in volume of confined space that described circuit breaker air blowing arc control device utilize dynamic assembly, formed between slide assemblies and insulation inner core, has come three-dimensional inspiration and two-way blowout arc extinguishing gases, extinguish arcs, has realized efficient arc extinguishing.
2. circuit breaker air blowing arc control device as claimed in claim 1, it is characterized in that: when dynamic assembly moves upward, dynamic assembly, confined space volumetric spaces between slide assemblies and insulation inner core become and form negative pressure greatly, and from three direction inspiration arc extinguishing gases, moving arcing contact slowly inserts static arc contact; When dynamic assembly moves downward, fixed contact sheet exits dynamic main contact, moving arcing contact also exits static arc contact thereupon, now can produce electric arc instantaneously, meanwhile moving arcing contact still firmly pushes down static arc contact, and dynamic assembly, confined space gradually between slide assemblies and insulation inner core diminish formation malleation, after the insufflation channel that dynamic for arc extinguishing gases press-in main contact, moving arcing contact and lower radome are formed is arrived electric arc place, by static arc contact and dynamic main contact hollow parts respectively toward top, the two-way air blowing in below, thus cooling electric arc being extinguished rapidly.
3. circuit breaker air blowing arc control device as claimed in claim 1, it is characterized in that: described quiet assembly also comprises junction block, fixed contact cover, fixed contact sheet stage clip, described static arc contact, fixed contact cover, fixed contact sheet, fixed contact sheet stage clip are assembled on junction block and form quiet assembly.
4. circuit breaker air blowing arc control device as claimed in claim 3, is characterized in that: every sheet fixed contact sheet of described quiet assembly has a slice fixed contact sheet stage clip to push down respectively.
5. circuit breaker air blowing arc control device as claimed in claim 1, it is characterized in that: described dynamic assembly also comprises moving arcing contact inner-outer sleeve, moving contact positioning sleeve and upper and lower radome, described moving arcing contact, moving arcing contact inner-outer sleeve, up and down radome and moving contact positioning sleeve are assembled to the dynamic assembly of composition on dynamic main contact.
6. circuit breaker air blowing arc control device as claimed in claim 5, is characterized in that: the radome up and down of described dynamic assembly adopts polytetrafluoroethylmaterial material to make, and radome is anchored on the screen that on dynamic main contact, formation one is good up and down.
7. circuit breaker air blowing arc control device as claimed in claim 5, is characterized in that: the dynamic main contact of described dynamic assembly, moving arcing contact and lower radome have suction insufflation channel.
8. circuit breaker air blowing arc control device as claimed in claim 1, it is characterized in that: described slide assemblies also comprises the upper and lower back-up ring of slip fingertip, sliding contact back-up ring and upper sealing ring, described sliding contact, slip fingertip, the upper and lower back-up ring of slip fingertip, sliding contact back-up ring and upper sealing ring are assembled into slide assemblies.
9. circuit breaker air blowing arc control device as claimed in claim 8, it is characterized in that: the sliding contact of described slide assemblies has air intake passage, and on side is stamped sealing ring, when making to close a floodgate, arc extinguishing gases sucks described slide assemblies and dynamic assembly from slide assemblies, insulation inner core forms confined space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053888.XA CN104616927B (en) | 2015-02-03 | 2015-02-03 | Blowing arc extinguishing chamber of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053888.XA CN104616927B (en) | 2015-02-03 | 2015-02-03 | Blowing arc extinguishing chamber of breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104616927A true CN104616927A (en) | 2015-05-13 |
| CN104616927B CN104616927B (en) | 2017-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510053888.XA Active CN104616927B (en) | 2015-02-03 | 2015-02-03 | Blowing arc extinguishing chamber of breaker |
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| Country | Link |
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| CN (1) | CN104616927B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342184A (en) * | 2017-05-08 | 2017-11-10 | 埃尔凯电器（新加坡）私人有限公司 | Double-fracture air pressing type high-voltage switch gear |
| CN109935495A (en) * | 2018-11-09 | 2019-06-25 | 许继（厦门）智能电力设备股份有限公司 | A kind of arc-chutes insulation supplementary structure |
| CN110010405A (en) * | 2019-04-28 | 2019-07-12 | 无锡市锡山湖光电器有限公司 | A kind of compound arc extinguishing type breaker |
| CN110797217A (en) * | 2018-08-02 | 2020-02-14 | 平高集团有限公司 | Quick mechanical switch and switch fracture thereof |
| CN111164718A (en) * | 2017-09-26 | 2020-05-15 | 西门子股份公司 | Module group for constructing power switch |
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| US20020036184A1 (en) * | 2000-09-27 | 2002-03-28 | Sohn Jong Mahn | Circuit breaker having hybrid arc extinguishing function |
| CN101136290A (en) * | 2007-09-24 | 2008-03-05 | 平高集团有限公司 | Arc-chute of 40.5kV hexafluoride sulphur circuit breaker |
| US7754991B2 (en) * | 2004-04-21 | 2010-07-13 | Areva T&D Sa | Medium-voltage or high voltage electrical switchgear |
-
2015
- 2015-02-03 CN CN201510053888.XA patent/CN104616927B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020036184A1 (en) * | 2000-09-27 | 2002-03-28 | Sohn Jong Mahn | Circuit breaker having hybrid arc extinguishing function |
| US7754991B2 (en) * | 2004-04-21 | 2010-07-13 | Areva T&D Sa | Medium-voltage or high voltage electrical switchgear |
| CN101136290A (en) * | 2007-09-24 | 2008-03-05 | 平高集团有限公司 | Arc-chute of 40.5kV hexafluoride sulphur circuit breaker |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107342184A (en) * | 2017-05-08 | 2017-11-10 | 埃尔凯电器（新加坡）私人有限公司 | Double-fracture air pressing type high-voltage switch gear |
| CN111164718A (en) * | 2017-09-26 | 2020-05-15 | 西门子股份公司 | Module group for constructing power switch |
| CN110797217A (en) * | 2018-08-02 | 2020-02-14 | 平高集团有限公司 | Quick mechanical switch and switch fracture thereof |
| CN110797217B (en) * | 2018-08-02 | 2022-03-29 | 平高集团有限公司 | Quick mechanical switch and switch fracture thereof |
| CN109935495A (en) * | 2018-11-09 | 2019-06-25 | 许继（厦门）智能电力设备股份有限公司 | A kind of arc-chutes insulation supplementary structure |
| CN109935495B (en) * | 2018-11-09 | 2024-04-30 | 许继（厦门）智能电力设备股份有限公司 | Insulating auxiliary structure of explosion chamber |
| CN110010405A (en) * | 2019-04-28 | 2019-07-12 | 无锡市锡山湖光电器有限公司 | A kind of compound arc extinguishing type breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104616927B (en) | 2017-05-03 |
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