CN103681035B - Arc extinguish chamber structure of breaker - Google Patents
Arc extinguish chamber structure of breaker Download PDFInfo
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- CN103681035B CN103681035B CN201310658888.3A CN201310658888A CN103681035B CN 103681035 B CN103681035 B CN 103681035B CN 201310658888 A CN201310658888 A CN 201310658888A CN 103681035 B CN103681035 B CN 103681035B
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- arc
- chamber structure
- extinguish chamber
- grid pieces
- extinguishing grid
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Abstract
The present invention discloses a kind of arc extinguish chamber structure of breaker, comprise a pair arc separating wall (1) opposite each other, to be arranged between arc separating wall (1) and to be spaced parallel multiple arc extinguishing grid pieces (2), and be positioned at the insulation screen (3) of arc extinguishing grid pieces (2) top, insulation screen (3) forms exhaust seam (4) of the non-through type of multiple extension, exhaust seam (4) intersects with the arc extinguishing grid pieces (2) of multiple spaced and parallel layout and arranges, with mutually formed for electric arc dissociate steam discharge multiple steam vents (5), the steam vent that the exhaust seam of non-through type and itself and arc extinguishing grid pieces are formed, be beneficial to electric arc dissociate steam discharge while, can stop that electric arc dissociates the return path of metallic in steam, prevent it from again turning back in arc control device after arc control device are discharged, thus effectively reduce the density of metallic vapour in arc control device, improve dielectric strength.
Description
Technical field
The present invention relates to breaker technical field, particularly, relate to a kind of arc extinguish chamber structure of breaker for circuit breaker.
Background technology
The dynamic/static contact of circuit breaker is at bringing onto load or the big current and in the course of action of disjunction of breaking down, voltage between dynamic/static contact will cause air dielectric to discharge, form electric arc, in order to ensure the reliability service of circuit breaker, in circuit breaker, be usually all provided with arc control device carry out extinguish arcs.But owing to containing metallic in arcing gas, this metallic easily makes the conductive component around circuit breaker or electric device occur short circuit.Therefore, in order to make arc extinguishing gases cool and deionization, the measure usually adopted arranges to arc control device exit position the free device that disappears.
Chinese patent literature CN202258893U discloses a kind of arc control device, comprise arc insulating cover, arc striking piece, two arc separating walls, grid, arc extinguishing boards and remove free net, wherein, arc extinguishing board is installed between grid top and arc insulating cover from top to bottom successively and removes free net, arc extinguishing board and grid top contact, the effect of arc extinguishing board is the gap between maintenance and grid, prevents short circuit between grid, can gain in strength and better cool electric arc simultaneously.Arc extinguishing board is along transversal line perforate, and in order to not affect gas permeability, the size in hole adapts with arrangement and grid interval, and go free net to be then placed on arc extinguishing board, concrete structure is as shown in the accompanying drawing 1 of this patent documentation.Be ferromagnetic material owing to removing free net, very strong induced field can be produced when electric arc occurs, electric arc is pulled out grid, and the power that induced field produces simultaneously can will may be withdrawn in arc control device from the electric arc of arc spraying mouth ejection, thus prevents electric arc from being flown out by the arc spraying mouth on arc-extinguish chamber.
But, the applicant finds in practice, in the arc control device of above-mentioned patent documentation, due to the air-vent on arc extinguishing board for through type designs, when going the power of swimming the generation of off-grid induced field may be withdrawn in arc control device from the electric arc of arc spraying mouth ejection, electric arc dissociates in steam will return to arc control device containing metallic, thus c correspondingly increase the density of metallic vapour in arc control device; In addition, the size in the hole on arc extinguishing board and arrangement adapt with grid interval, thus are more conducive to the metallic that electric arc dissociates in steam and turn back to arc control device, thus the dielectric strength of reduction arc control device.
Summary of the invention
Problem to be solved by this invention is that the arc control device of existing circuit breaker are in arc extinguishing process, the metallic that electric arc dissociates in steam easily returns the technical problem of arc control device, thus provide a kind of and effectively can stop that electric arc dissociates the return path of metallic in steam, and there is the arc extinguish chamber structure of breaker of good arc quenching effect.
To achieve these goals, the invention provides a kind of arc extinguish chamber structure of breaker, comprise a pair arc separating wall opposite each other, to be arranged between arc separating wall and the insulation screen being spaced parallel multiple arc extinguishing grid pieces and being positioned at above arc extinguishing grid pieces, insulation screen forms the exhaust seam of the non-through type of multiple extension, exhaust seam intersects with the arc extinguishing grid pieces of multiple spaced and parallel layout and arranges, mutually to form multiple steam vents of the steam discharge that to dissociate for electric arc.
Angle between exhaust seam and the arc extinguishing grid pieces of multiple spaced and parallel layout is 45 °-135 °.
The exhaust seam of non-through type comprises and staggering up and down and communicate upper notch and lower notch, and the cross section of stitching to make exhaust is step shape.
At least one side of the exhaust seam of non-through type is obliquely installed, and is seamed into tilted shape to make exhaust.
The width of exhaust seam is 2mm-10mm.
Exhaust seam is flat shape or wave-like in their extension direction.
There is between insulation screen and arc extinguishing grid pieces the interval of 3-6mm.
Insulation screen has bayonet socket respectively towards the two ends of arc separating wall, each arc separating wall has the fixture block with bayonet fittings.
Also comprise the free device and cover at the case on free device that disappears of disappearing be arranged on insulation screen; And being positioned at below multiple arc extinguishing grid pieces, and the run-on tab be connected with arc separating wall.
The described free device that disappears comprises the first punched-plate, woven wire and the second punched-plate that upwards arrange successively, insulate between screen and the first punched-plate and in both sides, arc separating wall position is provided with cushion block respectively between the first punched-plate and woven wire.
Technique scheme of the present invention compared with prior art, has the following advantages:
Arc extinguish chamber structure of breaker of the present invention, its insulated gate sheet metal forming be positioned at above arc extinguishing grid pieces has the exhaust of the non-through type of multiple extension to stitch, exhaust seam intersects with the arc extinguishing grid pieces of multiple spaced and parallel layout and arranges, with mutually formed for electric arc dissociate steam discharge multiple steam vents, the steam vent that the exhaust seam of non-through type and itself and arc extinguishing grid pieces are formed, be beneficial to electric arc dissociate steam discharge while, can stop that electric arc dissociates the return path of metallic in steam, prevent it from again turning back in arc control device after arc control device are discharged, thus effectively reduce the density of metallic vapour in arc control device, improve dielectric strength.
Arc extinguish chamber structure of breaker of the present invention, insulation screen on be also provided with the free device that disappears, by this free device that disappears, can to metallic vapour repeatedly disappear from, prevent metallic from spray, raising arc quenching effect.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1 represents the perspective cross-sectional schematic diagram of the arc extinguish chamber structure of breaker that the specific embodiment of the invention provides;
Fig. 2 represent insulation screen of the present invention and multiple arc extinguishing grid pieces assemble after vertical view;
Fig. 3-6 represents the schematic diagram of the multiple different structure form of insulation screen of the present invention.
Description of reference numerals
1-arc separating wall, 2-arc extinguishing grid pieces, 3-insulate screen, and 4-is vented seam, 5-steam vent, the upper notch of 6-, notch under 7-, 41-side, 8-bayonet socket, 10-woven wire, 11-first punched-plate, 12-run-on tab, 13-cushion block, 14-second punched-plate.
Embodiment
Below in conjunction with accompanying drawing, the arc extinguish chamber structure of breaker that the specific embodiment of the present invention provides is described in detail.
As illustrated in fig. 1 and 2, described arc extinguish chamber structure of breaker, comprise a pair arc separating wall 1 opposite each other, to be arranged between arc separating wall 1 and to be spaced parallel multiple arc extinguishing grid pieces 2, and the insulation screen 3 be positioned at above arc extinguishing grid pieces 2, it is characterized in that, insulation screen 3 forms the exhaust seam 4 of the non-through type of multiple extension, exhaust seam 4 intersects with the arc extinguishing grid pieces 2 of multiple spaced and parallel layout and arranges, namely mutually to stagger setting, with mutually formed for electric arc dissociate steam discharge multiple steam vents 5, the steam vent that the exhaust seam of non-through type and itself and arc extinguishing grid pieces are formed, be beneficial to electric arc dissociate steam discharge while, can stop that electric arc dissociates the return path of metallic in steam, prevent it from again turning back in arc control device after arc control device are discharged, thus effectively reduce the density of metallic vapour in arc control device, improve dielectric strength.
The angle arranged that intersects between exhaust seam 4 and the arc extinguishing grid pieces 2 of multiple spaced and parallel layout is 45 °-135 °, preferably, when this angle is 90 °, namely when exhaust seam 4 is arranged vertically with the arc extinguishing grid pieces 2 of multiple spaced and parallel layout, multiple steam vents 5 that exhaust seam 4 and the arc extinguishing grid pieces 2 of multiple spaced and parallel layout are formed mutually can be discharged electric arc significantly and to be dissociated steam, meanwhile, also can prevent metallic from turning back to arc control device very well.
The non-straight-through structure of exhaust seam 4 can have various ways, structure specifically as shown in Fig. 1 and 3-6, particularly, as shown in Figure 1, the exhaust seam 4 of non-through type comprises and staggering up and down and communicate upper notch 6 and lower notch 7, is step shape with the cross section making exhaust stitch 4.
In another kind of version, as shown in Figures 3 and 4, at least one side 41 of the exhaust seam 4 of non-through type is obliquely installed, such as 135 ° of angles are become to arrange with the bottom surface of insulation screen 3,4 one-tenth tilted shapes are stitched to make exhaust, namely as shown in Figures 3 and 4, the cross sectional shape forming the rib of exhaust seam 4 is parallelogram or trapezium structure, or is similar to leg-of-mutton structure.
Certainly, the version of exhaust seam 4 also can be other forms, and specifically as shown in Figures 4 and 5, wherein, in the diagram, the cross sectional shape forming the rib of exhaust seam 4 is step shape, and in Figure 5, the cross sectional shape forming the rib 16 of exhaust seam 4 is then Z-type structure,
Further, when the width of exhaust seam 4 is 2mm-10mm, electric arc dissociates steam is discharged and barrier metal particle returns arc control device effect very well, but it is to be appreciated that the width of exhaust seam 4 of the present invention is not limited to this size.
In addition, exhaust seam 4 is the flat shape shown in Fig. 3 in their extension direction, or is the wave-like shown in Fig. 5, or is the tilted shape shown in Fig. 4.
In order to improve arc quenching effect further, preferably, there is between insulation screen 3 and arc extinguishing grid pieces 2 interval of 3-6mm.
In addition, as shown in Figures 2 and 3, insulation screen 3 has bayonet socket 8 respectively towards the two ends of arc separating wall 1, each arc separating wall 1 has the fixture block (not shown) coordinated with bayonet socket 8, like this, by coordinating of bayonet socket 8 and fixture block, insulation screen 3 removably can be connected to arc separating wall, meanwhile, fixture block can also play position-limiting action to insulation screen 3.
In order to metallic vapour is repeatedly disappeared from, prevent metallic from spraying, improve arc quenching effect, further, arc extinguish chamber structure of breaker also comprises the free device and cover at the case on free device that disappears of disappearing be arranged on insulation screen 3; And being positioned at below multiple arc extinguishing grid pieces 2, and the run-on tab 12 be connected with arc separating wall 1.
Case offers the pore corresponding with the free device that disappears.
Particularly, as shown in Figure 1, the free device that disappears comprises the first punched-plate 11, woven wire 10 and the second punched-plate 14 that upwards arrange successively, insulate between screen 3 and the first punched-plate 11 and in both sides, arc separating wall 1 position is provided with cushion block 13 respectively between the first punched-plate 11 and woven wire 10.
Obviously, above-described embodiment is only for clearly example being described, the restriction not to execution mode.Concerning those of ordinary skill in the field, also can make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (10)
1. an arc extinguish chamber structure of breaker, comprise a pair arc separating wall (1) opposite each other, to be arranged between arc separating wall (1) and to be spaced parallel multiple arc extinguishing grid pieces (2) and to be positioned at the insulation screen (3) of arc extinguishing grid pieces (2) top, it is characterized in that, insulation screen (3) forms exhaust seam (4) of the non-through type of multiple extension, the arc extinguishing grid pieces (2) of exhaust seam (4) and multiple spaced and parallel layout intersects and arranges, mutually to form multiple steam vents (5) of the steam discharge that to dissociate for electric arc.
2. the arc quenching chamber structure of circuit breaker according to claim 1, is characterized in that, the angle between exhaust seam (4) and the arc extinguishing grid pieces (2) of multiple spaced and parallel layout is 45 °-135 °.
3. arc extinguish chamber structure of breaker according to claim 1, is characterized in that, exhaust seam (4) of non-through type comprises staggers and communicate upper notch (6) and lower notch (7) up and down, is step shape with the cross section making exhaust stitch (4).
4. arc extinguish chamber structure of breaker according to claim 1, is characterized in that, at least one side (41) of exhaust seam (4) of non-through type is obliquely installed, and stitches (4) become tilted shape to make exhaust.
5. arc extinguish chamber structure of breaker according to claim 1, is characterized in that, the width of exhaust seam (4) is 2mm-10mm.
6. the arc extinguish chamber structure of breaker according to any one of claim 1-5, is characterized in that, exhaust seam (4) is flat shape or wave-like in their extension direction.
7. the arc extinguish chamber structure of breaker according to any one of claim 1-5, is characterized in that, has the interval of 3-6mm between insulation screen (3) and arc extinguishing grid pieces (2).
8. arc extinguish chamber structure of breaker according to claim 7, is characterized in that, insulation screen (3) has bayonet socket (8) respectively towards the two ends of arc separating wall (1), each arc separating wall (1) has the fixture block coordinated with bayonet socket (8).
9. the arc extinguish chamber structure of breaker according to any one of claim 1-5, is characterized in that, also comprises the free device and cover at the case on free device that disappears of disappearing be arranged in insulation screen (3); And
Be positioned at multiple arc extinguishing grid pieces (2) below, and the run-on tab (12) be connected with arc separating wall (1).
10. arc extinguish chamber structure of breaker according to claim 9, it is characterized in that, the described free device that disappears comprises the first punched-plate (11), woven wire (10) and the second punched-plate (14) that upwards arrange successively, insulate between screen (3) and the first punched-plate (11) and in both sides, arc separating wall (1) position is provided with cushion block (13) respectively between the first punched-plate (11) and woven wire (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658888.3A CN103681035B (en) | 2013-12-06 | 2013-12-06 | Arc extinguish chamber structure of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310658888.3A CN103681035B (en) | 2013-12-06 | 2013-12-06 | Arc extinguish chamber structure of breaker |
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| Publication Number | Publication Date |
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| CN103681035A CN103681035A (en) | 2014-03-26 |
| CN103681035B true CN103681035B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310658888.3A Active CN103681035B (en) | 2013-12-06 | 2013-12-06 | Arc extinguish chamber structure of breaker |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742135B (en) * | 2016-04-27 | 2018-09-07 | 乐清市也为电气有限公司 | A kind of exhaust arc quenching system of leakage circuit breakers |
| GB2577635B (en) * | 2017-06-17 | 2020-08-19 | Shenzhen Airuixing Ind Design Co Ltd | Arc quenching plate and arc quenching unit with such arc quenching plate and switching device with such arc quenching unit |
| CN107680891B (en) * | 2017-10-31 | 2020-06-30 | 首瑞（天津）电气设备有限公司 | Contact arc extinguishing system, low-voltage circuit breaker and arc extinguishing system |
| CN112786344A (en) * | 2021-01-04 | 2021-05-11 | 厦门宏发开关设备有限公司 | Arc extinguishing system and breaking device with same |
| CN115132548A (en) * | 2021-03-26 | 2022-09-30 | 上海良信电器股份有限公司 | Separate arc subassembly and circuit breaker |
Citations (6)
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|---|---|---|---|---|
| CN2469539Y (en) * | 2001-03-09 | 2002-01-02 | 广州南洋电器厂 | Zero arcing low-voltage circuit breaker |
| CN2765313Y (en) * | 2004-12-28 | 2006-03-15 | 上海精益电器厂有限公司 | Arc extinguish chamber for frame type circuit breaker |
| CN101252048A (en) * | 2008-04-08 | 2008-08-27 | 江苏辉能电气有限公司 | Arc-extinguishing chamber for improving arc extinction performance of low pressure circuit breaker |
| DE102010034264B3 (en) * | 2010-08-13 | 2012-02-23 | Abb Ag | Electrical installation switching device has exhaust air duct that extends in longitudinal direction parallel to end wall of extinguishing chamber, to which exhaust air streams of extinguishing gases are passed via flow guiding elements |
| CN202678265U (en) * | 2012-06-28 | 2013-01-16 | 三信国际电器上海有限公司 | Breaker arc extinguishing apparatus |
| CN203573861U (en) * | 2013-12-06 | 2014-04-30 | 德力西电气有限公司 | Arc extinguish chamber structure of breaker |
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2013
- 2013-12-06 CN CN201310658888.3A patent/CN103681035B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2469539Y (en) * | 2001-03-09 | 2002-01-02 | 广州南洋电器厂 | Zero arcing low-voltage circuit breaker |
| CN2765313Y (en) * | 2004-12-28 | 2006-03-15 | 上海精益电器厂有限公司 | Arc extinguish chamber for frame type circuit breaker |
| CN101252048A (en) * | 2008-04-08 | 2008-08-27 | 江苏辉能电气有限公司 | Arc-extinguishing chamber for improving arc extinction performance of low pressure circuit breaker |
| DE102010034264B3 (en) * | 2010-08-13 | 2012-02-23 | Abb Ag | Electrical installation switching device has exhaust air duct that extends in longitudinal direction parallel to end wall of extinguishing chamber, to which exhaust air streams of extinguishing gases are passed via flow guiding elements |
| CN202678265U (en) * | 2012-06-28 | 2013-01-16 | 三信国际电器上海有限公司 | Breaker arc extinguishing apparatus |
| CN203573861U (en) * | 2013-12-06 | 2014-04-30 | 德力西电气有限公司 | Arc extinguish chamber structure of breaker |
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| CN103681035A (en) | 2014-03-26 |
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