CN206657771U - A kind of arc-chutes and the breaker using the arc-chutes - Google Patents
A kind of arc-chutes and the breaker using the arc-chutes Download PDFInfo
- Publication number
- CN206657771U CN206657771U CN201720426364.5U CN201720426364U CN206657771U CN 206657771 U CN206657771 U CN 206657771U CN 201720426364 U CN201720426364 U CN 201720426364U CN 206657771 U CN206657771 U CN 206657771U
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- arc
- pull bar
- dividing plate
- connecting shaft
- front baffle
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
It the utility model is related to high-tension switch gear technical field,There is provided a kind of simple in construction,Arc quenching effect can effectively be realized,The high arc-chutes of arc extinguishing reliability and the breaker using the arc-chutes,The arc-chutes include the dividing plate for separating expanding chamber and plenum chamber,The dividing plate is made up of front baffle and rear bulkhead,Groove is formed between the front baffle and rear bulkhead,The connecting shaft for crossing groove is additionally provided between the front baffle and rear bulkhead,The front through hole of expanding chamber and groove is communicated with the front baffle positioned at the position of connecting shaft both sides,The rear through hole of groove and plenum chamber is communicated with the rear bulkhead positioned at the position of connecting shaft both sides,One end that the connecting shaft is connected with front baffle is provided with step boss,Silica gel piece is equipped with position in the connecting shaft between step boss and rear bulkhead,The silica gel piece is resisted against on rear bulkhead and covers the rear through hole,The step boss is resisted against the pars intermedia of the silica gel piece.
Description
Technical field
It the utility model is related to high-tension switch gear technical field, more particularly to a kind of arc-chutes and use the arc-chutes
Breaker.
Background technology
The arc-chutes of conventional high-tension breaker use compound air pressing type structure, inside fill sulfur hexafluoride gas.In separating brake process
Middle air cylinder and displacer relative motion, the gas in air cylinder are compressed.While the sulfur hexafluoride gas in air cylinder is again
Electric arc heated is subjected to, gas inside and outside air cylinder is formed higher differential pressure.Gases at high pressure in air cylinder are brushed disconnected by spout
Mouth electric arc, in current over-zero, the air-flow of blowout takes away the charged ion in arcing area at a high speed, recovers the insulating properties of sulfur hexafluoride
Can, reach arc extinguishing purpose.Requirement of this arc-chutes to operating mechanism is bigger, it is necessary to which higher operating work, adds product
Cost.
Self-energy arc-extinguishing chamber high-voltage sf6 circuit breaker is the technological progress of high-voltage sf6 circuit breaker.By self-energy arc-extinguishing chamber institute
The operating work that need to be driven is smaller, is reduced relative to the operating work of puffer circuit breaker to less than 50%, can thus simplify machine
The design of structure.Authorization Notice No. is that CN 1148772C Chinese invention patent discloses a kind of self-energized thermal expansion type SF 6
Arc-extinguishing chamber of circuit breaker, including static side part and moved end part, static side part include quiet main contact and static arc contact, moved end part bag
Dynamic main contac, moving arcing contact, spout, cylinder, piston, dividing plate and piston rod are included, piston rod is pull bar, and cylinder is by being fixed on piston
Dividing plate in the middle part of bar is mutually divided into thermal expansion room and plenum chamber with the piston being seal-installed in cylinder, pull bar can drive spout,
Dynamic main contac, moving arcing contact and dividing plate are respectively equipped with thermal expansion room non-return valve together relative to piston movement on dividing plate and piston
With displacer relief valve, when breaker cut-offs short trouble high current, the gas in electric arc heated thermal expansion room, thermal expansion
Indoor pressure increase closes thermal expansion non-return valve, and displacer relief valve is opened, and is now only individually completed by thermal expansion room
Arc extinguishing, when breaker cut-offs short trouble low current, thermal expansion room non-return valve is opened, while displacer relief valve is closed,
Acted on by air cylinder and gas arc extinguishing pressure is provided.But the arc-chutes of said structure can only be to the short circuit in limited voltages grade
Electric current when being cut-off can effective arc extinguishing, and opened for exceeding the short circuit current of circuit outside above-mentioned limited voltages grade
When disconnected, arc quenching effect is poor or is unable to arc extinguishing.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model be to provide it is a kind of simple in construction, can be effective
Realize arc quenching effect, the high arc-chutes of arc extinguishing reliability and the breaker using the arc-chutes.
To achieve the above object, the utility model provides following technical scheme：A kind of arc-chutes, including moved end part and
Static side part, the static side part include static arc contact and quiet main contact, and the moved end part includes dynamic main contac, dynamic arc touches
Head, spout, air cylinder, the piston being arranged in air cylinder, dividing plate and pull bar；
Air cylinder includes splitting the expanding chamber and plenum chamber formed, the inwall of the dividing plate and air cylinder by dividing plate and piston
Threaded connection, the dividing plate is made up of front baffle and rear bulkhead, forms groove between the front baffle and rear bulkhead, it is described before every
The connecting shaft for crossing groove is additionally provided between plate and rear bulkhead, is communicated with the front baffle positioned at the position of connecting shaft both sides
The front through hole of expanding chamber and groove, after being communicated with groove and plenum chamber positioned at the position of connecting shaft both sides on the rear bulkhead
Through hole, one end that the connecting shaft is connected with front baffle are provided with step boss, and step boss is located in the connecting shaft with after
Silica gel piece is equipped with position between dividing plate, the silica gel piece is resisted against on rear bulkhead and covers the rear through hole, described
Rank boss is resisted against the pars intermedia of the silica gel piece；
The piston coordinates with air cylinder sealing, and the fix bar for fixed piston, fix bar are wholely set on piston
The upper inner chamber with for connecting circuit breaker internal insulating gas and plenum chamber；
The pull bar is oriented to slide and is arranged in the inner chamber of fix bar, and the pull bar is provided with axial bore, the pull bar
It is provided with the cinclides for the inner chamber that axial bore and fix bar can be connected in arc extinguishing；The pull bar and the dividing plate one into
Type, the diaphragm rings are set around the pull bar；The termination of the pull bar protrudes from dividing plate and extended towards static side part, the moved end
The moving arcing contact of part is installed on the termination of the pull bar, and the spout is located at described in the front of the pull bar termination and containing
Moving arcing contact, the static arc contact of the static side part carry out divide-shut brake by spout and the moving arcing contact.
A kind of breaker, including operating mechanism and the arc-chutes described in claim 1, go out described in the operating mechanism driving
The pull bar of arc chamber, which is oriented to, to be slided.
It is as follows by using above-mentioned technical proposal, the beneficial effects of the utility model:Arc-chutes as described above, dividing plate
It is made up of front baffle and rear bulkhead, and silica gel piece is provided between front baffle and rear bulkhead, then at arc extinguishing initial stage, expands Indoor Air
The expansion of body, the interior expansion air pressure of expanding chamber increases, and by the front through hole of front baffle, expansion air pressure can cause silica gel piece in expanding chamber
Further fitting is against rear bulkhead so that the rear through hole cut-off of rear bulkhead, the expansion of expanding chamber then can effectively promote every
Plate so that dividing plate does activity compression relative to piston, and now because rear through hole separates, and arc energy caused by arc extinguishing initial stage is not
Plenum chamber can be transferred to, the phenomenon for effectively avoiding operating work from increasing；And then with expanding chamber expand continuation, dividing plate relative to
The continuation of the activity compression of piston, interior compression of calming the anger air pressure slowly increase, and are proceeded by until the gas in expanding chamber sprays
During arc extinguishing, interior compression of calming the anger air pressure promotes silica gel piece by the rear through hole of rear bulkhead simultaneously, due to silica gel piece and front baffle it
Between to be provided with step raised, and now expanding chamber gas starts the arc extinguishing that leaks, and distress resolves on front side of silica gel piece, silica gel piece can compress
Carry out shrinking deformation towards front baffle direction for fulcrum with step projection under gas pressure and the front through hole of front baffle will not be covered, then
The rear through hole of rear bulkhead is opened, i.e., expanding chamber connects with plenum chamber, and the gas of compressed gas and expanding chamber in plenum chamber is common
Gas and energy needed for arc extinguishing is provided；Therefore, the diaphragm structure of the arc-chutes can neither influence plenum chamber internal compression gas
The collective effect of body and expanding chamber gas is used for arc extinguishing, also excessive arc energy will not be made to be delivered to plenum chamber, cause to operate
Work(increases, simple in construction, can effectively realize arc quenching effect, arc extinguishing reliability is high, practical.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment arc-chutes.
Fig. 2 is the schematic enlarged-scale view at A in Fig. 1.
Embodiment
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
Referring to figs. 1 to Fig. 2, the utility model embodiment discloses, a kind of arc-chutes, including moved end part and static side portion
Part, the static side part include static arc contact 1 and quiet main contact 2, the moved end part include dynamic main contac 3, moving arcing contact 4,
Spout 5, air cylinder 6, the piston 7 being arranged in air cylinder, dividing plate 8 and pull bar 9；
Air cylinder 6 includes splitting the expanding chamber 10 and plenum chamber 11 formed by dividing plate 8 and piston 7, and the dividing plate 8 is with calming the anger
The inner thread connection of cylinder, the dividing plate 8 is made up of front baffle 81 and rear bulkhead 82, between the front baffle 81 and rear bulkhead 82
Groove is formed, the connecting shaft for crossing groove is additionally provided between the front baffle 81 and rear bulkhead 82, is located in the front baffle 81
The position of connecting shaft both sides is communicated with the front through hole 83 of expanding chamber and groove, is located at connecting shaft both sides on the rear bulkhead 82
Position is communicated with the rear through hole 84 of groove and plenum chamber, and one end that the connecting shaft 83 is connected with front baffle 81 is provided with step
Boss, silica gel piece 85, the silica gel piece 85 are equipped with the position in the connecting shaft between step boss and rear bulkhead
It is resisted against on rear bulkhead and covers the rear through hole 84, the step boss is resisted against the pars intermedia of the silica gel piece；
The piston 7 coordinates with air cylinder sealing, and the fix bar 71 for fixed piston is wholely set on piston 7, Gu
There is the inner chamber 72 for being used for connecting circuit breaker internal insulating gas and plenum chamber in fixed pole 71；
The pull bar 9 is oriented to slide and is arranged in the inner chamber of fix bar, and the pull bar 9 is provided with axial bore, the drawing
Bar 9 is provided with the cinclides 91 for the inner chamber 72 that axial bore and fix bar can be connected in arc extinguishing；The pull bar 9 and the dividing plate
8 are integrally formed, and the dividing plate 8 is set around the pull bar 9；The termination of the pull bar 9 protrudes from dividing plate and prolonged towards static side part
Stretch, the moving arcing contact 4 of the moved end part is installed on the termination of the pull bar 9, and the spout 5 is located at the pull bar termination
The moving arcing contact 4 is simultaneously contained in front, and the static arc contact 1 of the static side part is divided by spout 5 and the moving arcing contact 4
Close a floodgate.
The arc quenching principle of the arc-chutes is：During sub-switching operation, dynamic main contac 3, moving arcing contact 4, spray are driven by pull bar
Mouthfuls 5, air cylinder 6 moves together, and piston 7 is fixed, and at separating brake initial stage, dynamic main contac 3 separates with quiet main contact 2, Ran Houdong
Arcing contact 4 separates with static arc contact 1, electric arc is produced between moving arcing contact 4 and static arc contact 1 under action of high voltage, in quiet arc
Before contact 1 separates with spout 5, static arc contact 1 blocks the larynx neck of spout 5, lithium in high-temperature electric arc heat expansion chamber 10
Sulphur gas, sharply increase the pressure in expanding chamber 10, while the sulfur hexafluoride gas in plenum chamber 11 is compressed by dividing plate 8,
When static arc contact 1 is newly disengaged with spout 5, the sulfur hexafluoride gas in sulfur hexafluoride gas and plenum chamber 11 in expanding chamber 10
Blown out along spout 5, when static arc contact 1 is kept completely separate with spout 5, cinclides 91 and breaker in the axial bore of pull bar 9
Air chamber connects, and so as to axially form strong bilateral air-blowing between fracture, fresh sulfur hexafluoride gas substitutes resolve rapidly
Between mouthful because electric arc cause sulfur hexafluoride decompose and caused by plasma, realize the fast quick-recovery to be insulated between fracture, complete arc extinguishing.
The arc-chutes designed in summary, it is simple in construction, arc quenching effect can be effectively realized, arc extinguishing reliability is high, practical
Property is strong.
Described in above, only this wound is used using the embodiment of this origination techniques content, any those skilled in the art
Make done modifications and changes, all belong to the scope of the claims of this creation opinion, and be not limited to those disclosed embodiments.
Claims (2)
- A kind of 1. arc-chutes, it is characterised in that：Including moved end part and static side part, the static side part include static arc contact and Quiet main contact, the moved end part include dynamic main contac, moving arcing contact, spout, air cylinder, the piston being arranged in air cylinder, Dividing plate and pull bar；Air cylinder includes splitting the expanding chamber and plenum chamber formed, the inner thread of the dividing plate and air cylinder by dividing plate and piston Connection, the dividing plate is made up of front baffle and rear bulkhead, forms groove between the front baffle and rear bulkhead, the front baffle and The connecting shaft for crossing groove is additionally provided between rear bulkhead, is communicated with expanding positioned at the position of connecting shaft both sides in the front baffle Room and the front through hole of groove, the rear logical of groove and plenum chamber is communicated with positioned at the position of connecting shaft both sides on the rear bulkhead Hole, one end that the connecting shaft is connected with front baffle are provided with step boss, in the connecting shaft positioned at step boss and after every Silica gel piece is equipped with position between plate, the silica gel piece is resisted against on rear bulkhead and covers the rear through hole, the step Boss is resisted against the pars intermedia of the silica gel piece；The piston coordinates with air cylinder sealing, and the fix bar for fixed piston is wholely set on piston, is had in fix bar There is the inner chamber for connecting circuit breaker internal insulating gas and plenum chamber；The pull bar is oriented to slide and is arranged in the inner chamber of fix bar, and the pull bar is provided with axial bore, is set on the pull bar There is the cinclides for the inner chamber that axial bore and fix bar can be connected in arc extinguishing；The pull bar is integrally formed with the dividing plate, institute Diaphragm rings are stated to set around the pull bar；The termination of the pull bar protrudes from dividing plate and extended towards static side part, the moved end part Moving arcing contact be installed on the termination of the pull bar, the spout located at the pull bar termination front and contain the dynamic arc Contact, the static arc contact of the static side part carry out divide-shut brake by spout and the moving arcing contact.
- A kind of 2. breaker, it is characterised in that：Including the arc-chutes described in operating mechanism and claim 1, the operating mechanism Drive the pull bar of the arc-chutes to be oriented to slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426364.5U CN206657771U (en) | 2017-04-21 | 2017-04-21 | A kind of arc-chutes and the breaker using the arc-chutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720426364.5U CN206657771U (en) | 2017-04-21 | 2017-04-21 | A kind of arc-chutes and the breaker using the arc-chutes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206657771U true CN206657771U (en) | 2017-11-21 |
Family
ID=60319283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720426364.5U Active CN206657771U (en) | 2017-04-21 | 2017-04-21 | A kind of arc-chutes and the breaker using the arc-chutes |
Country Status (1)
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|---|---|
| CN (1) | CN206657771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113851359A (en) * | 2021-08-18 | 2021-12-28 | 西安西电开关电气有限公司 | Self-powered circuit breaker with rotary one-way valve |
| CN117558579A (en) * | 2024-01-11 | 2024-02-13 | 宁波天安智能电网科技股份有限公司 | High-voltage arc switch and working method thereof |
-
2017
- 2017-04-21 CN CN201720426364.5U patent/CN206657771U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113851359A (en) * | 2021-08-18 | 2021-12-28 | 西安西电开关电气有限公司 | Self-powered circuit breaker with rotary one-way valve |
| CN117558579A (en) * | 2024-01-11 | 2024-02-13 | 宁波天安智能电网科技股份有限公司 | High-voltage arc switch and working method thereof |
| CN117558579B (en) * | 2024-01-11 | 2024-03-22 | 宁波天安智能电网科技股份有限公司 | High-voltage arc switch and working method thereof |
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