CN101252048A - Arc-extinguishing chamber for improving arc extinction performance of low pressure circuit breaker - Google Patents
Arc-extinguishing chamber for improving arc extinction performance of low pressure circuit breaker Download PDFInfo
- Publication number
- CN101252048A CN101252048A CNA2008100232910A CN200810023291A CN101252048A CN 101252048 A CN101252048 A CN 101252048A CN A2008100232910 A CNA2008100232910 A CN A2008100232910A CN 200810023291 A CN200810023291 A CN 200810023291A CN 101252048 A CN101252048 A CN 101252048A
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit breaker
- arc extinguishing
- low pressure
- extinguishing grid
- 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
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses an arc chute for improving the arc extinguishing performance of a low voltage circuit breaker, wherein, a plurality of arc extinguishing grids are equidistantly fixed inside a cylindrical shell; two layers of insulating plates provided with multiholes and a layer of metal plate provided with multiholes are arranged on the exhaust end of the shell; holes in the horizontal direction of the insulating plates and the metal plate are staggered; an insulating plate with a thickness of 1 millimeter is respectively fixed on a first arc extinguishing grid and a third arc extinguishing grid in the front of the shell. The arc chute for improving the arc extinguishing performance of the low voltage circuit breaker maintains low exhaust flux through staggered exhaust holes, meets the gas pressure required by air extinguishing, prevents recombination of arcing gases, can filter granular metals generated when a moving contact is separated from a fixed contact, is simple in structure, convenient in assembly and economic and practical, and can guarantee certain pressure of the arc chute after generation of arcs, improve the arc extinguishing speed and prevent the arcs from arcing on the rear, thereby the service life of the circuit breaker is prolonged.
Description
Technical field
The present invention relates to low voltage electrical equipment, relate in particular to the arc control device that are used in the low-voltage circuit breaker.
Background technology
Low-voltage circuit breaker is the main components and parts of low voltage electrical equipment, arc control device are again the vitals of low-voltage circuit breaker, because circuit breaker is moving, fixed contact (is promptly gone up, following contact) separately the time, can produce electric arc, the effect of arc control device is to cut off this electric arc, its arc extinction performance is a sole criterion of weighing the arc control device quality, present method is equidistantly to fix several arc extinguishing grid pieces in a columniform housing, the route of upper contact head motion is positioned at the cavity volume that each arc extinguishing grid pieces is formed, so electric arc will enter in the arc control device in production process, by arc extinguishing grid pieces electric arc is introduced between the grid sheet, the grid sheet becomes ARC CUTTING the short arc of consecutive, electric arc is diminished and improve arc drop fast, thereby reach the effect of arc extinguishing.
After electric arc produced the arc control device of going forward side by side, electric arc can be returned after running into the left and right sides sidewall of arc control device and arc extinguishing grid pieces in bounce-back, and the arcing gas of these high temperature will reduce the dielectric strength of institute's contact area; Simultaneously, after electric arc enters arc control device, arc voltage can sharply raise, will produce new electric arc in the zone of electric arc contact like this, this moment, the behind punch-through of electric arc caused the voltage of electric arc to reduce and the electric current increase, make the time lengthening that electric arc exists, thereby the ultimate breaking capacity of circuit breaker is reduced.
For addressing the above problem; the method that generally adopts is the arc control device of design transverse belt dielectric barrier at present; this horizontal dielectric barrier is arranged to laterally place between the trigger device of separation member and open position; by aerogenesis or aerogenesis materials with smaller are not made; this dielectric barrier by symmetrical placement in arc control device; purpose is the pressure balance in the control arc control device and elongates electric arc; to reach the effect that electric arc no longer triggers new electric arc later; another effect is to prevent exposing between arc extinguishing grid pieces and moving contact; but there is following defective in this method: when the electric arc starting the arc; Arc Temperature too high (the highest 6000k); burn the surface of arc extinguishing grid pieces easily; can cause that insulation between the arc extinguishing grid pieces and arc erosion and electric arc puncture, and do not play a very good protection behind.
Summary of the invention
The objective of the invention is provides a kind of arc control device that improve arc extinction performance of low pressure circuit breaker for overcoming the deficiencies in the prior art.
The technical solution used in the present invention is: equidistantly fix several arc extinguishing grid pieces in columniform housing, exhaust end at housing is provided with the insulation board of two-layer band porous and the metallic plate of one deck band porous, the location dislocation of insulation board and metallic plate Kong Yukong in the horizontal direction; On first and the 3rd arc extinguishing grid pieces of housing front portion, fix an insulation board that 1mm is thick respectively.
The present invention by the steam vent position of staggering to keep less exhaust flux, satisfy the needed gas pressure of arc extinguishing, prevent that arcing gas is compound, and the metallic particles that produces can filter dynamic/static contact and separate the time, simple in structure, easy for installation, economical and practical and can make arc control device produce the back to guarantee to have certain pressure at electric arc, can improve arc extinguishing speed and can also prevent that electric arc from puncturing from behind simultaneously, thereby prolong the useful life of circuit breaker.
Description of drawings
Below in conjunction with the drawings and specific embodiments invention is described in further detail.
Fig. 1 is an internal structure cutaway view of the present invention.
Embodiment
As shown in Figure 1, the housing 1 of arc control device is cylindrical, has several arc extinguishing grid pieces 2 to be installed in the housing 1, and is equidistantly fixing during installation.The headroom of arc extinguishing grid pieces 2 is exhaust ends of housing 1.Exhaust end at housing 1 is provided with the insulation board 4 of two-layer band porous and the metallic plate 5 of one deck band porous, the material of insulation board 4 adopts melamine, the location dislocation of this two-layer insulation board 4 and metallic plate 5 Kong Yukong in the horizontal direction comes, and keeps less exhaust flux with this.Be covered with the end of forming by gas exhausted material in the foot of arc extinguishing grid pieces 2 and emit 6, be beneficial to quick arc extinguishing and prevent to take place between arc extinguishing grid pieces 2 and the moving contact electric puncture.On first and the 3rd arc extinguishing grid pieces 2 of housing 1 front portion, fix an insulation board 3 that 1mm is thick respectively, the material of insulation board 3 adopts melamine, so that the initial period that forms at electric arc just the stage of electric arc maximum prevent 2 arc reignitions of arc extinguishing grid pieces, thereby prevent that electric arc from puncturing from behind.
Claims (3)
1. arc control device that improve arc extinction performance of low pressure circuit breaker, in columniform housing (1), equidistantly fix several arc extinguishing grid pieces (2), it is characterized in that: the exhaust end at housing (1) is provided with the insulation board (4) of two-layer band porous and the metallic plate (5) of one deck band porous, the location dislocation of insulation board (4) and metallic plate (5) Kong Yukong in the horizontal direction.
2. a kind of arc control device that improve arc extinction performance of low pressure circuit breaker according to claim 1 is characterized in that: fix an insulation board (3) that 1mm is thick respectively on first and the 3rd arc extinguishing grid pieces (2) of housing (1) front portion.
3. a kind of arc control device that improve arc extinction performance of low pressure circuit breaker according to claim 1 is characterized in that: be covered with an end in the foot of arc extinguishing grid pieces (2) and emit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100232910A CN101252048A (en) | 2008-04-08 | 2008-04-08 | Arc-extinguishing chamber for improving arc extinction performance of low pressure circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100232910A CN101252048A (en) | 2008-04-08 | 2008-04-08 | Arc-extinguishing chamber for improving arc extinction performance of low pressure circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101252048A true CN101252048A (en) | 2008-08-27 |
Family
ID=39955385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100232910A Pending CN101252048A (en) | 2008-04-08 | 2008-04-08 | Arc-extinguishing chamber for improving arc extinction performance of low pressure circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101252048A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681035A (en) * | 2013-12-06 | 2014-03-26 | 德力西电气有限公司 | Arc extinguish chamber structure of disconnector |
| CN104637735A (en) * | 2013-11-08 | 2015-05-20 | Ls产电株式会社 | Molded case circuit breaker |
| CN106098438A (en) * | 2016-08-10 | 2016-11-09 | 李蕊名 | One has high breaking capacity arc quenching system |
| CN116387111A (en) * | 2023-06-01 | 2023-07-04 | 广东南冠电气有限公司 | Intelligent measuring breaker |
| CN117727595A (en) * | 2024-02-07 | 2024-03-19 | 温州华嘉电器有限公司 | Arc extinguishing chamber of circuit breaker |
-
2008
- 2008-04-08 CN CNA2008100232910A patent/CN101252048A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637735A (en) * | 2013-11-08 | 2015-05-20 | Ls产电株式会社 | Molded case circuit breaker |
| US9607794B2 (en) | 2013-11-08 | 2017-03-28 | Lsis Co., Ltd. | Molded circuit breaker case with exhaust guide and cover |
| CN103681035A (en) * | 2013-12-06 | 2014-03-26 | 德力西电气有限公司 | Arc extinguish chamber structure of disconnector |
| CN103681035B (en) * | 2013-12-06 | 2016-04-13 | 德力西电气有限公司 | Arc extinguish chamber structure of breaker |
| CN106098438A (en) * | 2016-08-10 | 2016-11-09 | 李蕊名 | One has high breaking capacity arc quenching system |
| CN106098438B (en) * | 2016-08-10 | 2018-05-22 | 李蕊名 | One kind has high breaking capacity arc quenching system |
| CN116387111A (en) * | 2023-06-01 | 2023-07-04 | 广东南冠电气有限公司 | Intelligent measuring breaker |
| CN116387111B (en) * | 2023-06-01 | 2023-11-14 | 广东南冠电气有限公司 | Intelligent measuring breaker |
| CN117727595A (en) * | 2024-02-07 | 2024-03-19 | 温州华嘉电器有限公司 | Arc extinguishing chamber of circuit breaker |
| CN117727595B (en) * | 2024-02-07 | 2024-04-26 | 温州华嘉电器有限公司 | Arc extinguishing chamber of circuit breaker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201532915U (en) | Arc extinguish chamber used for low-voltage circuit breaker | |
| CN101252048A (en) | Arc-extinguishing chamber for improving arc extinction performance of low pressure circuit breaker | |
| CN201845730U (en) | Arc-extinguishing chamber of universal circuit breaker | |
| CN105405707B (en) | Gas insulated load switch and its arc-control device | |
| CN201178045Y (en) | Arc-extinguishing chamber for low voltage circuit breaker | |
| CN201562605U (en) | Breaker arc extinguishing structure with arc barrier | |
| CN116313589B (en) | Arc extinguishing system and circuit breaker | |
| CN202434271U (en) | Aerogenic gap arc-extinguishing lightning protection device | |
| CN103426670B (en) | Breaker contact arc extinguishing system | |
| CN206179719U (en) | Take explosion chamber of free device that disappears | |
| CN104091734B (en) | A kind of arc-control device of circuit breaker | |
| CN202067744U (en) | Arc extinguishing equipment of air circuit breaker | |
| CN203312218U (en) | Arc extinguishing device for circuit breaker | |
| CN204857636U (en) | Rapid interrupter's explosion chamber and miniaturized circuit breaker of applied this explosion chamber | |
| CN209658121U (en) | Air-sweeping type low-voltage arc eliminating device and breaker | |
| CN210607025U (en) | Arc extinguishing chamber | |
| CN201966124U (en) | Radiating rack used on solid sealed pole | |
| CN220856486U (en) | Circuit breaker | |
| CN102376474B (en) | High-breaking-capacity arc extinguish chamber of circuit breaker | |
| CN110957195A (en) | Contact arc extinguishing device of circuit breaker | |
| CN110098095B (en) | Air-blowing type low-voltage arc extinguishing device and circuit breaker | |
| CN210956583U (en) | Arc extinguish chamber of circuit breaker | |
| CN218351400U (en) | Circuit breaker | |
| CN220155477U (en) | Multilayer series arc extinguishing system of circuit breaker | |
| CN216562920U (en) | Arc extinguish chamber of circuit breaker and circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080827 |