CN108735537A - A kind of Arc Distinguishing Device for Circuit Breakers - Google Patents
A kind of Arc Distinguishing Device for Circuit Breakers Download PDFInfo
- Publication number
- CN108735537A CN108735537A CN201810654895.9A CN201810654895A CN108735537A CN 108735537 A CN108735537 A CN 108735537A CN 201810654895 A CN201810654895 A CN 201810654895A CN 108735537 A CN108735537 A CN 108735537A
- Authority
- CN
- China
- Prior art keywords
- arc
- insulating cover
- grid pieces
- extinguishing grid
- 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.)
- Pending
Links
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 abstract description 26
- 230000000694 effects Effects 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- 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
- H01H9/302—Means for extinguishing or preventing arc between current-carrying parts wherein arc-extinguishing gas is evolved from stationary parts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A kind of Arc Distinguishing Device for Circuit Breakers, it includes arc extinguishing grid pieces group (1), arc extinguishing holder (2), insulate arc insulating cover (3) and arc striking component (4), the both ends of the arc extinguishing grid pieces group (1) are on the arc extinguishing holder (2), the foot of the arc extinguishing grid pieces group (1) is in the insulation arc insulating cover (3), the arc striking component (4) is located at mounted in insulation arc insulating cover (3) top at the top of the arc extinguishing grid pieces group (1), it is characterised in that：In the insulation arc insulating cover (3) several tongue and grooves (301) are provided on the madial wall equipped with arc extinguishing grid pieces group (1) foot.A kind of Arc Distinguishing Device for Circuit Breakers provided by the invention, under the premise of using equal volume size aerogenesis cover, by the way that wave channel is arranged on the inside of aerogenesis cover, increase the contact area of gas exhausted material and electric arc, can be significantly more efficient using the input indoor arc energy of arc extinguishing, aerogenesis effect is promoted, while wave channel is arranged between two arc extinguishing grid pieces, runway is provided for electric arc, is conducive to electric arc and enters arc-chutes.
Description
Technical field
The invention belongs to breaker technical fields, are exactly specifically to be related to a kind of Arc Distinguishing Device for Circuit Breakers.
Background technology
Breaker is the pith in electrical power distribution apparatus, is mainly used for industrial low-voltage power system, for connecting and dividing
The danger of electric current and protection circuit and power-supply device in disconnected mains-power circuit from failures such as overload, under-voltage, short circuit, single-phase earthings
Evil.The function that breaker carries out overload or short circuit current disjunction is mainly to be completed by the arc-chutes in breaker
's.When the electric current that breaks down in circuit, and when current value is more than the setting protection domain of breaker, driving tripping mechanism is dynamic
Make, the dynamic and static contact of breaker is made to disconnect rapidly, the voltage between dynamic and static contact causes air dielectric electric discharge to produce at this time
Raw high-temperature electric arc.Electric arc causes the air themperature in arc-control device to steeply rise to accelerate air ionization in combustion.
On the other hand, under the promotion in magnetic field and hydrodynamic effect of the electric arc in arc-chutes, multiple short arcs are separated by multiple arc grid,
Strengthen the deionization effect of electric arc by metal arc piece, electric arc becomes smaller and voltage rapidly increases, and makes arc extinction.
Existing arc extinguishing system of circuit breaker, by between electric arc introducing grid, electric arc is cut into concatenated short by arc extinguishing grid pieces
Arc quickly improves arc voltage, to have the function that extinguish electric arc.In order to improve the energy for extinguishing electric arc of arc-extinguishing chamber of circuit breaker
Power, usual way are to increase arc extinguishing grid pieces surface area in breaker arc extinguishing room, increase grid quantity to carry out arc extinguishing chamber vol
Increasing improve the breaking capacity of arc-chutes, but such method can be such that arc extinguishing building volume is continuously increased, and then bring
Problem is that breaker volume is made to be continuously increased, and on the other hand, arc-control device can also be produced by being installed in the leg of arc extinguishing grid pieces
Gas hood generates the gas for being conducive to arc extinguishing by arc erosion gas exhausted material, promotes arc-chutes breaking capacity, but this production
In gas hood structure, the contact area of electric arc and gas exhausted material is limited, and the arc energy to inputting arc-chutes is unable to fully utilize, and produces
Gas effect is limited, causes aerogenesis cover limited to the promotion of breaker breaking capacity.
Invention content
The purpose of the present invention causes arc-chutes in breaker that can occupy aiming at above-mentioned existing breaker volume
Space is limited, can not promote breaker breaking capacity by increasing quantity and the surface area of arc extinguishing grid pieces, while arc-chutes produce
Gas exhausted material and arc contacts area are smaller in gas hood structure, and the arc energy to inputting arc-chutes is unable to fully utilize, aerogenesis
The limited technological deficiency of effect, provides a kind of Arc Distinguishing Device for Circuit Breakers, under the premise of using equal volume size aerogenesis cover, leads to
It crosses on the inside of aerogenesis cover and wave channel is set, increase the contact area of gas exhausted material and electric arc, significantly more efficient can utilize input
The indoor arc energy of arc extinguishing promotes aerogenesis effect, while wave channel is arranged between two arc extinguishing grid pieces, and race is provided for electric arc
Road is conducive to electric arc and enters arc-chutes.
Technical solution
In order to achieve the above technical purposes, a kind of Arc Distinguishing Device for Circuit Breakers that the present invention designs, it includes arc extinguishing grid pieces group,
Arc extinguishing holder, insulate arc insulating cover, it is characterised in that：It is set on the madial wall equipped with arc extinguishing grid pieces group foot in the insulation arc insulating cover
It is equipped with several tongue and grooves.
Further, the foot of the arc extinguishing grid pieces group is described recessed in the slot on the insulation arc insulating cover madial wall
Tongue and slot end to end continuous arrangement side by side.
Further, the tongue and groove is waveform or V-arrangement or W-shaped or zigzag or arc-shaped.
Further, the symmetrical stretching left foot portion of the arc extinguishing grid pieces group and right foot part, the insulation arc insulating cover include with
The left foot portion and the corresponding left arc insulating cover of right foot part and right arc insulating cover, the madial wall of the left arc insulating cover and right arc insulating cover
Upper setting tongue and groove, interconnecting piece is provided with aerogenesis channel between the left arc insulating cover and right arc insulating cover.
Further, the arc extinguishing grid pieces of top and bottom end are shorter than the arc extinguishing grid pieces at intermediate position in the arc extinguishing grid pieces group.
Further, the arc striking component is located at arc extinguishing grid pieces group top in the limiting slot on the insulation arc insulating cover top
Portion, be provided at the top of the insulation arc insulating cover pillar for install the positioning arc striking component.
Advantageous effect
A kind of Arc Distinguishing Device for Circuit Breakers provided by the invention is passed through under the premise of using equal volume size aerogenesis cover
Wave channel is set on the inside of aerogenesis cover, increases the contact area of gas exhausted material and electric arc, significantly more efficient can be gone out using input
The indoor arc energy of arc promotes aerogenesis effect, while wave channel is arranged between two arc extinguishing grid pieces, and runway is provided for electric arc,
Be conducive to electric arc and enter arc-chutes.
Description of the drawings
Attached drawing 1 is the structural schematic diagram of the embodiment of the present invention.
Attached drawing 2 is the exploded perspective view of the embodiment of the present invention.
Attached drawing 3 is the main view direction structure schematic diagram of insulation arc insulating cover in the embodiment of the present invention.
Attached drawing 4 is the backsight direction structure schematic diagram of insulation arc insulating cover in the embodiment of the present invention.
Attached drawing 5 is the structural schematic diagram on the middle top and bottom end arc extinguishing grid pieces of the embodiment of the present invention.
Attached drawing 6 is the structural schematic diagram of intermediate arc extinguishing grid pieces in the embodiment of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention will be further described.
Embodiment
As shown in figure 1 and 2, a kind of Arc Distinguishing Device for Circuit Breakers provided in this embodiment, it includes arc extinguishing grid pieces group 1, is gone out
Arc holder 2, insulate arc insulating cover 3 and arc striking component 4, and the both ends of the arc extinguishing grid pieces group 1 are described to go out on the arc extinguishing holder 2
In the insulation arc insulating cover 3, the arc striking component 4 is located at institute mounted in 3 top of insulation arc insulating cover for the foot of arc grid group 1
State 1 top of arc extinguishing grid pieces group, wherein as shown in figures 3 and 4, equipped with 1 foot of arc extinguishing grid pieces group in the insulation arc insulating cover 3
Several tongue and grooves 301 are provided on madial wall, the tongue and groove 301 can be waveform or V-arrangement or W-shaped or zigzag or arc-shaped
Deng.Tongue and groove 301 described in the present embodiment is waveform.
Specifically it is exactly slot 302 of the foot of the arc extinguishing grid pieces group 1 on insulation 3 madial wall of arc insulating cover
It is interior, the tongue and groove 301 and slot 302 end to end continuous arrangement side by side.The arc striking component 4 is mounted in the insulation arc insulating cover 3
It is located at 1 top of the arc extinguishing grid pieces group in the limiting slot 306 on top, 3 top of the insulation arc insulating cover is provided with pillar 307 and is used for
Installation positions the arc striking component 4.
As depicted in figures 5 and 6,1 symmetrical stretching left foot portion 101 of the arc extinguishing grid pieces group and right foot part 102, such as attached drawing
Shown in 3 and 4, the insulation arc insulating cover 3 include left arc insulating cover 303 corresponding with the left foot portion 101 and right foot part 102 and
Tongue and groove 301, the left arc is arranged in right arc insulating cover 304 on the madial wall of the left arc insulating cover 303 and right arc insulating cover 304
Interconnecting piece is provided with aerogenesis channel 305 between cover 303 and right arc insulating cover 304.As shown in figure 1 and 2, the arc extinguishing grid pieces group 1
The arc extinguishing grid pieces of middle top and bottom end are shorter than the arc extinguishing grid pieces at intermediate position.Arc extinguishing grid pieces group 1 is wrapped from top to bottom in the present embodiment
Include 2 top arc extinguishing grid pieces 103, if, arc extinguishing grid pieces 104 and 1 bottom end arc extinguishing grid pieces 105, wherein bottom end arc extinguishing among dry plate
Grid 105 is with preceding a piece of intermediate arc extinguishing grid pieces without grid gap.Top and bottom insulation grid uses foot's shorter form, in
Between arc extinguishing grid pieces 104 using both sides foot longer form.This structure can utmostly play arc extinguishing grid pieces arc blow-out magnetic field
The space of arc-chutes can be effectively saved while effect.
When breaker passes through short circuit current, electric arc is opened and generated to moving contact and static contact reprimand, and electric arc is during generation
It can enter in arc-control device, the motion range of moving contact is moved in electric arc to arc extinguishing grid pieces group 1 within the scope of arc extinguishing grid pieces group
The inner wall of insulation 2 intermediate channel of arc insulating cover can be touched in the process, and the gas exhausted material on inner wall can be discharged due to the erosion of electric arc
Be conducive to the gas cooling electric arc of arc extinguishing.The more existing arc-control device of arc-control device provided in this embodiment is promoted in aerogenesis effect
To original 1.2~1.5 times, when electric arc enters in arc extinguishing grid pieces group 1, electric arc can be divided into multistage short arc by arc extinguishing grid pieces group 1,
And contacted with metal grid surface, it is fully cooled, to improve the breaking capacity of breaker.
Structure, ratio, size, quantity etc. depicted in institute of embodiment of the present invention accompanying drawings, only coordinating specification
Revealed content is not limited to the enforceable restriction item of the present invention so that those skilled in the art understands and reads
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing
Under the effect of present invention can be generated and the purpose that can reach, it should all still fall and obtain and can contain in disclosed technology contents
In the range of lid.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", " inverse time in this specification
The term of needle " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
Claims (6)
1. a kind of Arc Distinguishing Device for Circuit Breakers, it includes arc extinguishing grid pieces group (1), and arc extinguishing holder (2), insulate arc insulating cover (3), described to go out
The both ends of arc grid group (1) on the arc extinguishing holder (2), the foot of the arc extinguishing grid pieces group (1) mounted in the insulation every
In arc cover (3), it is characterised in that：It is provided on the madial wall equipped with arc extinguishing grid pieces group (1) foot in the insulation arc insulating cover (3)
Several tongue and grooves (301).
2. a kind of Arc Distinguishing Device for Circuit Breakers as described in claim 1, it is characterised in that：The foot of the arc extinguishing grid pieces group (1)
In the slot (302) on described insulation arc insulating cover (3) madial wall, the tongue and groove (301) and slot (302) are side by side from beginning to end
Connect continuous arrangement.
3. a kind of Arc Distinguishing Device for Circuit Breakers as claimed in claim 1 or 2, it is characterised in that：The tongue and groove (301) is wave
Shape or V-arrangement or W-shaped or zigzag or arc-shaped.
4. a kind of Arc Distinguishing Device for Circuit Breakers as described in claim 1, it is characterised in that：Arc extinguishing grid pieces group (1) left and right pair
Claim to stretch out left foot portion (101) and right foot part (102), the insulation arc insulating cover (3) include and the left foot portion (101) and right foot part
(102) corresponding left arc insulating cover (303) and right arc insulating cover (304), the left arc insulating cover (303) and right arc insulating cover (304)
Madial wall on setting tongue and groove (301), interconnecting piece is provided with production between the left arc insulating cover (303) and right arc insulating cover (304)
Gas channel (305).
5. a kind of Arc Distinguishing Device for Circuit Breakers as described in claim 1, it is characterised in that：Top in the arc extinguishing grid pieces group (1)
It is shorter than the arc extinguishing grid pieces at intermediate position with the arc extinguishing grid pieces of bottom end.
6. a kind of Arc Distinguishing Device for Circuit Breakers as described in claim 1, it is characterised in that：The arc striking component (4) is mounted in described exhausted
It is located at the top of the arc extinguishing grid pieces group (1) in the limiting slot (306) on edge arc insulating cover (3) top, at the top of the insulation arc insulating cover (3)
Be provided with pillar (307) for install the positioning arc striking component (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654895.9A CN108735537A (en) | 2018-06-22 | 2018-06-22 | A kind of Arc Distinguishing Device for Circuit Breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810654895.9A CN108735537A (en) | 2018-06-22 | 2018-06-22 | A kind of Arc Distinguishing Device for Circuit Breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108735537A true CN108735537A (en) | 2018-11-02 |
Family
ID=63930694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810654895.9A Pending CN108735537A (en) | 2018-06-22 | 2018-06-22 | A kind of Arc Distinguishing Device for Circuit Breakers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108735537A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202678265U (en) * | 2012-06-28 | 2013-01-16 | 三信国际电器上海有限公司 | Breaker arc extinguishing apparatus |
| KR20130089541A (en) * | 2012-02-02 | 2013-08-12 | 현대중공업 주식회사 | Arc extinguish of the molded case circuit breaker |
| CN205881844U (en) * | 2016-07-29 | 2017-01-11 | 常熟开关制造有限公司(原常熟开关厂） | Arc control device and have this arc control device's circuit breaker |
| CN208848784U (en) * | 2018-06-22 | 2019-05-10 | 上海良信电器股份有限公司 | A kind of Arc Distinguishing Device for Circuit Breakers |
-
2018
- 2018-06-22 CN CN201810654895.9A patent/CN108735537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130089541A (en) * | 2012-02-02 | 2013-08-12 | 현대중공업 주식회사 | Arc extinguish of the molded case circuit breaker |
| CN202678265U (en) * | 2012-06-28 | 2013-01-16 | 三信国际电器上海有限公司 | Breaker arc extinguishing apparatus |
| CN205881844U (en) * | 2016-07-29 | 2017-01-11 | 常熟开关制造有限公司(原常熟开关厂） | Arc control device and have this arc control device's circuit breaker |
| CN208848784U (en) * | 2018-06-22 | 2019-05-10 | 上海良信电器股份有限公司 | A kind of Arc Distinguishing Device for Circuit Breakers |
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