CN201532915U - Arc extinguish chamber used for low-voltage circuit breaker - Google Patents
Arc extinguish chamber used for low-voltage circuit breaker Download PDFInfo
- Publication number
- CN201532915U CN201532915U CN2009200485045U CN200920048504U CN201532915U CN 201532915 U CN201532915 U CN 201532915U CN 2009200485045 U CN2009200485045 U CN 2009200485045U CN 200920048504 U CN200920048504 U CN 200920048504U CN 201532915 U CN201532915 U CN 201532915U
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- Prior art keywords
- arc
- circuit breaker
- low
- steel column
- shell
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- Expired - Fee Related
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Abstract
The utility model discloses an arc extinguish chamber used for a low-voltage circuit breaker of low-voltage electric equipment, which comprises two shells and a plurality of arc extinguishing splitters and arc striking pieces arranged in the shells, wherein the upper part of the shell is provided with two layers of porous flash barriers, a layer of steel column is arranged between the two layers of porous flash barriers in a contact manner, a steel column is arranged above the flash barriers in a contact manner, the steel column is provided with a net steel plate with dense small holes in a contact manner, and a shell steel plate is arranged above the net steel plate in a contact manner. Smaller exhaust flux is maintained by staggering the positions of air vents so as to meet gas pressure needed by arc extinguishing, prevent recombination of arcing gas, and filter metallic particles generated when moving and static contacts are separated; and the arc extinguish chamber has simple structure, convenient installation and economical and practical properties, and is ensured to have certain pressure after the generation of electric arc, so that the arc extinguishing speed is increased and simultaneously the electric arc is prevented from puncturing from the back, thus prolonging the service life of the circuit breaker.
Description
Technical field
The utility model relates to low voltage electrical equipment, relates in particular to the arc control device device that is 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 structure 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 quenching chamber structure 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 structure: 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 purpose of this utility model is for overcoming the deficiencies in the prior art, providing a kind of arc extinction performance better low-voltage circuit breaker arc control device.
The technical solution adopted in the utility model is: comprise two shells and place its interior some arc extinguishing grid pieces and striking sheet, shell upper is provided with the flash barrier of two-layer band porous, contact is provided with one deck steel column between the two-layer flash barrier, the contact of flash barrier top is provided with a steel column, contact is provided with the checkered sheet of the aperture that gathers on the steel column, and the contact of checkered sheet top is provided with the shell steel plate.
The utility model 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 the utility model is described in further detail.
Fig. 1 is the broken away view of the utility model structure.
Among the figure: 1. shell; 2. striking sheet; 3. arc extinguishing grid pieces; 4. insulation board; 5. steel column; 6. insulation board; 7. steel column; 8. checkered sheet; 9. shell steel plate.
Embodiment
As shown in Figure 1, arc control device are by two shells 1 and two-layer flash barrier 4 and 6, two-layer different cylinder steel axle, and it is assembled that one deck checkered sheet adds one deck outer cover of steel plate, 13 arc extinguishing grid pieces 3 and a slice striking sheet 2.13 arc extinguishing grid pieces 3 and a slice striking sheet 2 are fixedly mounted in the shell 1, shell 1 is the DMC gas exhausted material, the inboard has the groove of inclined angle, each arc extinguishing grid pieces 3 inserts in the shell 1 along groove is fixing, when arc extinguishing grid pieces 3 is installed, becomes cross-like to install between per two, form " V " font cross-like, equi-spaced apart is fixed between per two, the electric arc section of being divided into that imports in the arc control device can be beneficial to extinguishing of electric arc.
Shell 1 is the meeting aerogenesis under the situation of high temperature, increases the air pressure in the arc control device, helps the speed of arc extinction and the discharge of gases at high pressure.Exhaust end on shell 1 top is provided with the flash barrier 4,6 of two-layer band porous, contact is provided with one deck steel column 5 between two-layer flash barrier 4,6, hole between the two-layer insulation board 4,6 is cross one another on horizontal plane, and this structure helps the discharge of gases at high pressure according to fluidics.Contact is provided with a steel column 7 above flash barrier 6, contact is provided with the aperture very high checkered sheet 8 of density of arranging on the steel column 7, and this checkered sheet 8 can be suppressed gases at high pressure, when pressure acquires a certain degree, help the abrupt release of gas, and can echo the free gas of ionization.Contact is provided with the outer cover of steel plate steel plate 9 have square hole above checkered sheet 8, and what shell steel plate 9 used is metal material, and the intensity height prevents because the energy that gases at high pressure produce destroys a whole set of arc control device system.
Materials such as flash barrier 4 and 6, steel column 5 and 7, checkered sheet 8 can both absorb part energy, reduce the temperature in the arc extinguishing chamber, thereby reduce air pressure.
Claims (3)
1. low-voltage circuit breaker arc control device, comprise two shells (1) and place its interior some arc extinguishing grid pieces (3) and striking sheet (2), it is characterized in that: shell (1) top is provided with the flash barrier (4,6) of two-layer band porous, contact is provided with one deck steel column (5) between the two-layer flash barrier (4,6), the contact of flash barrier (6) top is provided with a steel column (7), steel column (7) is gone up the checkered sheet (8) that contact is provided with the aperture that gathers, and the contact of checkered sheet (8) top is provided with the shell steel plate (9) that has square hole.
2. low-voltage circuit breaker arc control device according to claim 1 is characterized in that: the hole between the two-layer insulation board (4,6) intersects on horizontal plane mutually.
3. low-voltage circuit breaker arc control device according to claim 1 is characterized in that: shell (1) inboard has groove, and arc extinguishing grid pieces (3) equi-spaced apart is fixed in this groove, becomes " V " font cross-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200485045U CN201532915U (en) | 2009-10-23 | 2009-10-23 | Arc extinguish chamber used for low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200485045U CN201532915U (en) | 2009-10-23 | 2009-10-23 | Arc extinguish chamber used for low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532915U true CN201532915U (en) | 2010-07-21 |
Family
ID=42528316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200485045U Expired - Fee Related CN201532915U (en) | 2009-10-23 | 2009-10-23 | Arc extinguish chamber used for low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532915U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908442A (en) * | 2010-08-05 | 2010-12-08 | 无锡新宏泰电器科技股份有限公司 | Novel breaker arc extinguishing structure |
| CN103021755A (en) * | 2012-12-18 | 2013-04-03 | 天津市百利电气有限公司 | Molded case circuit breaker with short flashover device and high arc extinction effect |
| CN105374648A (en) * | 2015-11-12 | 2016-03-02 | 天津市百利电气有限公司 | Deionization and arc-extinguishing device for low-voltage circuit breaker |
| CN106098438A (en) * | 2016-08-10 | 2016-11-09 | 李蕊名 | One has high breaking capacity arc quenching system |
| CN106229238A (en) * | 2016-08-19 | 2016-12-14 | 天津市百利电气有限公司 | The device without arcing of moulded case circuit breaker |
| CN106663555A (en) * | 2014-03-27 | 2017-05-10 | 沙尔特宝有限公司 | Electrical switching apparatus comprising improved arc-quenching device |
| WO2018072254A1 (en) * | 2016-10-21 | 2018-04-26 | 浙江正泰电器股份有限公司 | Arc-quenching chamber for use with universal circuit breakers |
-
2009
- 2009-10-23 CN CN2009200485045U patent/CN201532915U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908442A (en) * | 2010-08-05 | 2010-12-08 | 无锡新宏泰电器科技股份有限公司 | Novel breaker arc extinguishing structure |
| CN103021755A (en) * | 2012-12-18 | 2013-04-03 | 天津市百利电气有限公司 | Molded case circuit breaker with short flashover device and high arc extinction effect |
| CN106663555A (en) * | 2014-03-27 | 2017-05-10 | 沙尔特宝有限公司 | Electrical switching apparatus comprising improved arc-quenching device |
| CN106663555B (en) * | 2014-03-27 | 2018-11-23 | 沙尔特宝有限公司 | Electric switchgear with improved arc extinction mechanism |
| CN105374648A (en) * | 2015-11-12 | 2016-03-02 | 天津市百利电气有限公司 | Deionization and arc-extinguishing device for low-voltage circuit 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 |
| CN106229238A (en) * | 2016-08-19 | 2016-12-14 | 天津市百利电气有限公司 | The device without arcing of moulded case circuit breaker |
| WO2018072254A1 (en) * | 2016-10-21 | 2018-04-26 | 浙江正泰电器股份有限公司 | Arc-quenching chamber for use with universal circuit breakers |
| CN107978499A (en) * | 2016-10-21 | 2018-05-01 | 浙江正泰电器股份有限公司 | Omnipotent breaker arc-chutes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20171023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |