CN204720349U - Arc quenching system in circuit breaker - Google Patents
Arc quenching system in circuit breaker Download PDFInfo
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- CN204720349U CN204720349U CN201520458707.7U CN201520458707U CN204720349U CN 204720349 U CN204720349 U CN 204720349U CN 201520458707 U CN201520458707 U CN 201520458707U CN 204720349 U CN204720349 U CN 204720349U
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- Prior art keywords
- arc
- extinguishing grid
- grid pieces
- control device
- circuit breaker
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- 230000000171 quenching effect Effects 0.000 title claims abstract description 23
- 238000010791 quenching Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 15
- 230000006978 adaptation Effects 0.000 claims abstract description 10
- 230000003139 buffering effect Effects 0.000 claims abstract description 10
- 210000002186 septum of brain Anatomy 0.000 claims abstract description 10
- 238000010891 electric arc Methods 0.000 claims description 22
- 238000002955 isolation Methods 0.000 claims description 21
- 210000003205 muscle Anatomy 0.000 claims description 18
- 230000000694 effects Effects 0.000 description 3
- 238000009795 derivation Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses the arc quenching system in a kind of circuit breaker, comprise arc control device, arc extinguishing grid pieces and arc-extinguish chamber, arc control device are provided with the installation cavity with arc extinguishing grid pieces adaptation, arc control device comprise into arc end and go out arc end, go out arc end and be provided with out arc shunting septal area, be respectively the first Chu Hu district and the second Chu Hu district, further, the arc exit of leading in the first Chu Hu district is provided with buffering area, further, be provided with in the installation cavity of arc control device with arc extinguishing grid pieces adaptation be embedded groove, be also provided with the dividing wall for separating of adjacent two arc extinguishing grid pieces in installation cavity.The utility model has the advantage that breaking capacity is good, arc quenching effect is good, safe and reliable.
Description
Technical field
The utility model belongs to circuit breaker accessory technical field, the arc quenching system in especially a kind of circuit breaker.
Background technology
Circuit breaker is that one is used for cutting off and connecting load circuit, and disengagement failure circuit Accident prevention expands thus a kind of switching device of proof load circuit safety operation.The structure of circuit breaker mainly comprises housing, contact mechanism, arc striking mechanism, arc quenching system, operating mechanism and magnetic tripping mechanism, and contact mechanism comprises moving contact and fixed contact, and moving contact is provided with moving contact, and fixed contact is provided with fixed contact; Arc quenching system comprises arc control device, and arc control device are provided with arc extinguishing grid pieces and arc-extinguish chamber, and arc striking mechanism comprises upper and lower arc striking piece; Operating mechanism comprises operating grip, main support, linkage unit and latch components; Magnetic tripping mechanism comprises iron core, coil and yoke.
In circuit breaker, the arc quenching principle of arc quenching system is that the induced field produced mainly through arc extinguishing grid pieces forms magnetic blowout power, and electric arc is sucked arc control device, and electric arc is divided into some segments by arc extinguishing grid pieces, utilizes the nearly minus plate effect of electric arc to reach the object of extinguish arcs.There is following defect in circuit breaker of the prior art: 1. when electric arc is introduced into arc control device after arc extinguishing grid pieces segmentation, when deriving from the other end, owing to lacking corresponding protection and isolation, electric arc is caused to be short-circuited, again restrike, and the arcing time of electric arc is long, the breaking capacity of circuit breaker can be reduced.2. arc-extinguish chamber of the prior art is generally enclosed construction, and its exhaust is not smooth, and air-flow release has some setbacks, and easily make arc-extinguish chamber expand damaged, arc control device fall apart and are deposited in together, cause pole short circuit up and down.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides the arc quenching system in the circuit breaker that a kind of breaking capacity is good, arc quenching effect is good, safe and reliable.
To achieve these goals, the technical solution adopted in the utility model is: the arc quenching system in a kind of circuit breaker, comprise arc control device, arc extinguishing grid pieces, arc-extinguish chamber and striking assembly, arc control device are provided with the installation cavity with arc extinguishing grid pieces adaptation, arc control device comprise into arc end and go out arc end, it is characterized in that: described in go out arc end be provided with out arc shunting septal area, be respectively the first Chu Hu district and the second Chu Hu district.
In said structure, electric arc passes through air-blowing, arc control device introduced by magnetic blow-out and striking assembly, striking assembly comprises upper and lower arc striking piece, upper arc striking piece one end is positioned at above arc control device, the other end of upper arc striking piece upwards bends and is connected with fixed contact, fixed contact is arranged at this junction, one end of lower arc striking piece is positioned at below arc control device, the lower arc striking piece other end is then in contact with it towards the extension of bimetal leaf direction, handle is articulated with on housing, housing is also provided with reference column, main support, moving contact and snap close are all installed on this reference column, main support outer surface is provided with articulated column, tripping is installed on this articulated column, main support radially end face offers the mounting groove that moving contact can be supplied accommodated therein, one side of mounting groove offers the through hole with this mounting groove UNICOM, moving contact back-moving spring one end is connected with moving contact through this through hole, the moving contact back-moving spring other end is then fixed on the fixed leg of inner walls, this fixed leg is positioned at one end that handle deviates from contact mechanism, this respective outer side edges is tight, space availability ratio is high, snap close is provided with outstanding lock dog, tripping is provided with the locked groove with this lock dog adaptation, above-mentioned arc control device are positioned at the below of magnetic tripping mechanism, the installation cavity with arc extinguishing grid pieces adaptation is provided with in arc control device, the arc end that goes out of arc control device passes through after electric arc is split by arc shunting septal area and derives respectively, avoid electric arc to be short-circuited again after exit and affect circuit breaker performance, this goes out arc shunting septal area and usually only arranges upper and lower region, but do not limit concrete shunting septal area quantity.
Further, the arc exit of leading in described first Chu Hu district is provided with buffering area.
In said structure, this first Chu Hu district leads the sidewall that arc outlet is arranged on Shell of circuit breaker, and the setting of buffering area then reduces the instantaneous derived quantity of electric arc and delayed the instantaneous derivation speed of electric arc.
Further, described first Chu Hu district is provided with retaining wall near leading arc exit, has breach above retaining wall, this retaining wall and lead arc export between form buffering area.
In said structure, this lead arc outlet with the first Chu Hu district between be provided with retaining wall, this retaining wall and lead arc export between form buffering area, iris action is played in the setting of retaining wall, delays the instantaneous derivation speed of electric arc, minimizing electric arc instantaneous derived quantity.
Further, be provided with in the installation cavity of described arc control device with arc extinguishing grid pieces adaptation be embedded groove, be also provided with the dividing wall for separating of adjacent two arc extinguishing grid pieces in installation cavity.
In said structure, though this dividing wall be arranged so that adjacent arc extinguishing grid pieces is under the effect of instantaneous large-current, also can not attract each other paste in one.
Further, entering arc end and going out arc end of described arc control device is respectively equipped with and is intervally distributed with the prominent muscle of isolation, the isolation of entering arc end muscle and the isolation going out arc end muscle of dashing forward of dashing forward coaxially arranges the muscle and the isolation at these two ends is dashed forward and forms the dividing wall for separating of adjacent two arc extinguishing grid pieces, and the interval trough between dividing wall and dividing wall is formed and is embedded groove for described arc extinguishing grid pieces installation.
In said structure, this dividing wall is that two ends splits is arranged, and the isolation at two ends muscle of dashing forward positions isolation to the two ends of arc extinguishing grid pieces respectively, avoids it to attract each other under big current effect and pastes in integrative-structure.
Further, described in go out arc end isolation muscle of dashing forward be provided with extension towards going out arc shunting septal area and extending, the gap between this extension and extension forms electric arc disjunction guiding channel.
In said structure, this isolation going out arc end muscle of dashing forward carries out disjunction isolation by arranging of its extension to being positioned at this electric arc going out arc end, avoids it to go out arc end occur short circuit phenomenon at this, ensures arc quenching effect further, improve security performance.
Further, described arc-extinguish chamber comprises the arc sheet being installed on arc extinguishing grid pieces sidewall, and this arc sheet is provided with release groove, and the space between this release groove with adjacent two arc extinguishing grid pieces communicates, and arc extinguishing grid pieces sidewall offers breach, and arc sheet is embedded in this breach.
In said structure, this arc sheet is also provided with upper and lower two release grooves, makes smooth in exhaust in arc control device, accelerate the speed that electric arc enters arc control device, improve arc extinguishing efficiency.
Further, described arc sheet vibrational power flow in the form of sheets, arc sheet is installed on arc extinguishing grid pieces front-rear side walls respectively.
In said structure, this arc sheet is for being separately positioned on both sides before and after arc extinguishing grid pieces, and this arc sheet makes arc control device from four direction ventilation all around, can accelerate the speed that electric arc enters arc control device, ensure smooth gas discharge in arc control device; First, portion gas can be discharged from both sides, front and back, makes air-flow be back to below moving contact through arc sheet, and the pressure increasing moving contact place promotes electric arc and moves; Meanwhile, due to the drive of air-flow, the heat at moving contact place and electric arc can be pulled away along with air-flow, can reduce the loss of moving contact; Secondly, due to two release grooves up and down of arc sheet, gas in arc control device can be reduced and, to the surge of arc sheet, guarantee that arc extinguishing grid pieces and arc sheet still can hold tightly together, ensure the even arrangement of arc extinguishing grid pieces, voltage uniform is reduced.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is the structural front view of arc quenching system in the utility model specific embodiment Shell of circuit breaker;
Accompanying drawing 2 is the structural representation of arc control device in the utility model specific embodiment Shell of circuit breaker;
Accompanying drawing 3 is the partial enlarged drawing of the A of the utility model specific embodiment accompanying drawing 2;
Accompanying drawing 4 is the structural representation of the utility model specific embodiment arc extinguishing grid pieces and arc-extinguish chamber;
Accompanying drawing 5 is the structural representation of the utility model specific embodiment arc-extinguish chamber;
Lead arc outlet 131, arc control device 31, enter arc end 311, go out arc end 312, first Chu Hu district 312a, the second Chu Hu district 312b, buffering area 312c, retaining wall 312d, be embedded groove 313, isolation prominent muscle 314, extension 315, electric arc disjunction guiding channel 316, arc extinguishing grid pieces 32, arc-extinguish chamber 33, arc sheet 331, release groove 332, upper arc striking piece 341, lower arc striking piece 342.
Embodiment
Specific embodiment of the utility model is the arc quenching system in circuit breaker as Figure 1-5, comprise arc control device 31, arc extinguishing grid pieces 32, arc-extinguish chamber 33 and striking assembly, arc control device 31 are provided with the installation cavity with arc extinguishing grid pieces 32 adaptation, striking assembly comprises arc striking piece 341 and lower arc striking piece 342, upper arc striking piece 341 is positioned at above arc control device 31, lower arc striking piece 342 is positioned at below arc control device 31, arc control device 31 comprise into arc end 311 and go out arc end 312, go out arc end 312 and be provided with out arc shunting septal area, be respectively the first Chu Hu district 312a and the second Chu Hu district 312b.
Further, the arc of leading of the first Chu Hu district 312a exports 131 places and is provided with buffering area 312c.
Further, the first Chu Hu district 312a exports 131 places be provided with retaining wall 312d near leading arc, has breach above retaining wall 312d, this retaining wall 312d and lead arc export 131 between form buffering area 312c.
Further, be provided with in the installation cavity of arc control device 31 with arc extinguishing grid pieces 32 adaptation be embedded groove 313, be also provided with the dividing wall for separating of adjacent two arc extinguishing grid pieces 32 in installation cavity.
Further, entering arc end 311 and going out arc end 312 of arc control device 31 is respectively equipped with and is intervally distributed with the prominent muscle 314 of isolation, dash forward muscle 314 and the isolation going out arc end 312 of the isolation of entering arc end 311 dashes forward that muscle 314 is coaxial to be arranged the muscle 314 and isolation at these two ends is dashed forward and form the dividing wall for separating of adjacent two arc extinguishing grid pieces 32, the interval trough between dividing wall and dividing wall formed install for arc extinguishing grid pieces 32 be embedded groove 313.
Further, the isolation going out arc end 312 muscle 314 of dashing forward is provided with extension 315 towards going out arc shunting septal area and extending, and the gap between this extension 315 and extension 315 forms electric arc disjunction guiding channel 316.
Further, arc-extinguish chamber 33 comprises the arc sheet 331 being installed on arc extinguishing grid pieces 32 sidewall, and this arc sheet 331 is provided with release groove 332, and the space between this release groove 332 with adjacent two arc extinguishing grid pieces 32 communicates, arc extinguishing grid pieces 32 sidewall offers breach, and arc sheet 331 is embedded in this breach.
Further, arc sheet 331 vibrational power flow in the form of sheets, arc sheet 331 is installed on arc extinguishing grid pieces 32 front-rear side walls respectively.
The utility model is not limited to above-mentioned embodiment; persons skilled in the art are content disclosed in the utility model; other multiple embodiments can be adopted to implement of the present utility model; or every employing project organization of the present utility model and thinking; do simple change or change, all fall into protection range of the present utility model.
Claims (8)
1. the arc quenching system in a circuit breaker, comprise arc control device, arc extinguishing grid pieces, arc-extinguish chamber and striking assembly, arc control device are provided with the installation cavity with arc extinguishing grid pieces adaptation, arc control device comprise into arc end and go out arc end, it is characterized in that: described in go out arc end be provided with out arc shunting septal area, be respectively the first Chu Hu district and the second Chu Hu district.
2. the arc quenching system in circuit breaker according to claim 1, is characterized in that: the arc exit of leading in described first Chu Hu district is provided with buffering area.
3. the arc quenching system in circuit breaker according to claim 2, is characterized in that: described first Chu Hu district is provided with retaining wall near leading arc exit, has breach above retaining wall, this retaining wall and lead arc export between form buffering area.
4. the arc quenching system in circuit breaker according to claim 1, is characterized in that: be provided with in the installation cavity of described arc control device with arc extinguishing grid pieces adaptation be embedded groove, be also provided with the dividing wall for separating of adjacent two arc extinguishing grid pieces in installation cavity.
5. the arc quenching system in circuit breaker according to claim 4, it is characterized in that: entering arc end and going out arc end of described arc control device is respectively equipped with and is intervally distributed with the prominent muscle of isolation, the isolation of entering arc end muscle and the isolation going out arc end muscle of dashing forward of dashing forward coaxially arranges the muscle and the isolation at these two ends is dashed forward and forms the dividing wall for separating of adjacent two arc extinguishing grid pieces, and the interval trough between dividing wall and dividing wall is formed and is embedded groove for described arc extinguishing grid pieces installation.
6. the arc quenching system in circuit breaker according to claim 5, is characterized in that: described in go out arc end isolation muscle of dashing forward be provided with extension towards going out arc shunting septal area and extending, the gap between this extension and extension forms electric arc disjunction guiding channel.
7. the arc quenching system in circuit breaker according to claim 1, it is characterized in that: described arc-extinguish chamber comprises the arc sheet being installed on arc extinguishing grid pieces sidewall, this arc sheet is provided with release groove, space between this release groove with adjacent two arc extinguishing grid pieces communicates, arc extinguishing grid pieces sidewall offers breach, and arc sheet is embedded in this breach.
8. the arc quenching system in circuit breaker according to claim 7, is characterized in that: described arc sheet vibrational power flow in the form of sheets, arc sheet is installed on arc extinguishing grid pieces front-rear side walls respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520458707.7U CN204720349U (en) | 2015-06-26 | 2015-06-26 | Arc quenching system in circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520458707.7U CN204720349U (en) | 2015-06-26 | 2015-06-26 | Arc quenching system in circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204720349U true CN204720349U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520458707.7U Active CN204720349U (en) | 2015-06-26 | 2015-06-26 | Arc quenching system in circuit breaker |
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| Country | Link |
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| CN (1) | CN204720349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036906A (en) * | 2018-09-17 | 2018-12-18 | 美高电气科技有限公司 | A kind of electric arc divided system |
-
2015
- 2015-06-26 CN CN201520458707.7U patent/CN204720349U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036906A (en) * | 2018-09-17 | 2018-12-18 | 美高电气科技有限公司 | A kind of electric arc divided system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325000 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee after: ZHEJIANG CHUANGQI ELECTRIC Co.,Ltd. Address before: 325000 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee before: WENZHOU LUOGELANG ELECTRICAL EQUIPMENT Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee after: Zhejiang Chuangqi Electric Co.,Ltd. Country or region after: China Address before: 325000 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee before: ZHEJIANG CHUANGQI ELECTRIC Co.,Ltd. Country or region before: China |