CN102522276A - Arc-extinguishing device of breaker - Google Patents
Arc-extinguishing device of breaker Download PDFInfo
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- CN102522276A CN102522276A CN2011104434010A CN201110443401A CN102522276A CN 102522276 A CN102522276 A CN 102522276A CN 2011104434010 A CN2011104434010 A CN 2011104434010A CN 201110443401 A CN201110443401 A CN 201110443401A CN 102522276 A CN102522276 A CN 102522276A
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- arc
- circuit breakers
- control device
- flash
- breaker
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Abstract
The invention discloses an arc-extinguishing device of a breaker. The arc-extinguishing device comprises an arc extinguish chamber device and an arc insulating device. The arc insulating device includes two flash barriers; and the arc extinguish chamber device includes a plurality of arc-extinguishing grid plates that are arranged between the two flash barriers at a uniform interval. Besides, the arc-extinguishing device is characterized in that air dispersion holes that are in a latticed shape are opened on each of the flash barriers. According to the invention, local air pressures inside the arc-extinguishing device can be effectively reduced when a breaker is broken; and an arc blow-out effect can be enhanced. When the provided arc-extinguishing device is applied to a breaker, working stability of the breaker can be effectively improved and cost can be saved.
Description
Technical field
the present invention relates to a kind of Arc Distinguishing Device for Circuit Breakers.
Background technology
arc-control device of circuit breaker at present mainly comprise arc control device device 1 and arc insulating apparatus 2 two parts; The concrete Fig. 1 that combines; Shown in Figure 2; Arc insulating apparatus 2 mainly comprises two flash barrier 2a (can only see a side flash barrier among the figure), and arc control device device 1 comprises mainly that then even interval is located at the some arc extinguishing grid pieces 1a between two flash barrier 2a.Arc extinguishing grid pieces 1a both sides are fixed on the arc control device case 1b inwall usually, and two flash barrier 2a bottom often fuses through base plate 2b, thereby base plate 2b goes up through setting up fixed contact connecting plate 2c and arc control device device 1 together on mount to the fixed contact 3.
yet; There is drawback in use in present above-mentioned Arc Distinguishing Device for Circuit Breakers: owing to do not set up air dispelling hole on the flash barrier 2a; The arc blow-out effect is relatively poor, can make that the air pressure of local space sharply increases in the arc-control device when the have no progeny high heat that produced by electric arc of circuit breaker branch like this, will Shell of circuit breaker be burst when reaching certain value; Not only can't effectively improve the circuit breaker break performance, even also cause circuit breaker to damage.
Summary of the invention
the present invention seeks to: provide a kind of simple in structure; Partial pressure in the arc-control device in the time of effectively reducing the circuit breaker disjunction; Promote the Arc Distinguishing Device for Circuit Breakers of arc blow-out effect simultaneously, this Arc Distinguishing Device for Circuit Breakers applies to can effectively improve the job stability of circuit breaker in the circuit breaker and practice thrift cost.
technical scheme of the present invention is: a kind of Arc Distinguishing Device for Circuit Breakers; Comprise arc control device device and arc insulating apparatus; Said arc insulating apparatus comprises two flash barriers; Be located at the some arc extinguishing grid pieces between two flash barriers and said arc control device device comprises even interval, it is characterized in that all being on the said every flash barrier the latticed air dispelling hole that has.
are further, and each air dispelling hole described in the present invention all is positioned at the interstice coverage of two adjacent arc extinguishing grid pieces.The side that promptly from any air dispelling hole, can't see certain arc extinguishing grid pieces is local.
are further, and the air dispelling hole on every flash barrier described in the present invention all is evenly spaced apart in horizontal and vertical.
are preferred, and two flash barriers are symmetrically arranged described in the present invention; Two flash barrier left-right symmetric are meant both shape symmetries, and the air dispelling hole distribution form on while two flash barriers is symmetry also.
are further, and the same with routine techniques, arc insulating apparatus described in the present invention also comprises base plate, and the bottom of two flash barriers fuses through base plate.
further, arc insulating apparatus described in the present invention also comprises fixing or is shaped in the fixed contact connecting plate on the base plate.
are further, and the same with routine techniques, the device of arc control device described in the present invention also comprises the arc control device case, and said arc extinguishing grid pieces both sides are fixed on the arc control device encloser inner wall.
are when the present invention installs in circuit breaker, and are the same with routine techniques, and said arc insulating apparatus together is assembled on the fixed contact by fixed contact connecting plate and arc control device device.
Among
the present invention because flash barrier is designed to be the form of latticed densely covered air dispelling hole; So when the circuit breaker disjunction, air dispelling hole can be introduced the hyperbar that electric arc causes in the arc extinguishing grid pieces gap, reduces the arc-control device air pressure inside; Prevent that Shell of circuit breaker from bursting; Utilize this a part of hyperbar air-flow to increase the arc blow-out effect simultaneously, electric arc is introduced in the arc extinguishing grid pieces gap more fast extinguished, thereby promote the circuit breaker break performance.
Advantage of the present invention is:
this Arc Distinguishing Device for Circuit Breakers 1. provided by the invention; It is on the basis that does not change Arc Distinguishing Device for Circuit Breakers original structure and operating characteristic; Through on flash barrier, simply setting up latticed air dispelling hole; Solved that present circuit breaker air pressure inside when the high short circuit current of disjunction can't in time discharge and the Shell of circuit breaker that causes bursts problem, promoted the job stability of circuit breaker greatly.
this Arc Distinguishing Device for Circuit Breakers 2. provided by the invention; Because the air dispelling hole on the flash barrier can promote the arc blow-out effect simultaneously; Be beneficial to and further electric arc introduced the arc extinguishing grid pieces gap fast and extinguish, therefore also promoted the interrupting performance of circuit breaker greatly.
this Arc Distinguishing Device for Circuit Breakers 3. provided by the invention, it need not increase other corollary apparatus and realize its function, so practiced thrift production cost to a certain extent, helps improving the competitiveness of product in market.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is the front view of existing Arc Distinguishing Device for Circuit Breakers;
Fig. 2 is the inner independent structural representation of arc insulating apparatus of Fig. 1;
Fig. 3 is the front view of Arc Distinguishing Device for Circuit Breakers of the present invention;
Fig. 4 is the inner independent structural representation of arc insulating apparatus of Fig. 3.
wherein: 1, arc control device device; 1a, arc extinguishing grid pieces; 1b, arc control device case; 2, arc insulating apparatus; 2a, flash barrier; 2b, base plate; 2c, fixed contact connecting plate; 3, fixed contact; A, air dispelling hole.
Embodiment
embodiment: combine Fig. 3, shown in Figure 4; This Arc Distinguishing Device for Circuit Breakers provided by the invention; It is made up of arc control device device 1 and arc insulating apparatus 2 two parts; And said arc control device device 1 is made up of with being positioned at arc control device case 1b and being even spaced apart some arc extinguishing grid pieces 1a arc control device case 1b jointly, and the both sides of every arc extinguishing grid pieces 1a all are fixed on the arc control device case 1b inwall.Said arc insulating apparatus 2 is by two flash barrier 2a (can only see a side flash barrier) among the figure, base plate 2b and fixed contact connecting plate 2c form, and the bottom of said two flash barrier 2a fuses through base plate 2b, is fixed with fixed contact connecting plate 2c on the base plate 2b.Aforementioned arc extinguishing grid pieces 1a evenly is located between two flash barrier 2a at interval.
key points in design of the present invention is all to be on the said every flash barrier 2a latticed some air dispelling hole A that have; Each air dispelling hole A all is positioned at the interstice coverage of two adjacent arc extinguishing grid pieces 1a, can't see from any air dispelling hole A that promptly the side of certain arc extinguishing grid pieces 1a is local.Air dispelling hole A on every flash barrier 2a described in the present embodiment all is evenly spaced apart in horizontal and vertical.And said two flash barrier 2a are symmetrically arranged, and promptly the shape of two flash barrier 2a is symmetrical, and the air dispelling hole A distribution form on while two flash barrier 2a is symmetry also.
are when the present invention installs in circuit breaker, and are the same with routine techniques, and said arc insulating apparatus 2 together is assembled on the fixed contact 3 by fixed contact connecting plate 2c and arc control device device 1.
Among
the present invention because flash barrier 2a is designed to be the form of latticed densely covered air dispelling hole A; So when the circuit breaker disjunction, air dispelling hole A can introduce the hyperbar that electric arc causes in the arc extinguishing grid pieces 1a gap, reduces the arc-control device air pressure inside; Prevent that Shell of circuit breaker from bursting; Utilize this a part of hyperbar air-flow to increase the arc blow-out effect simultaneously, electric arc is introduced in the arc extinguishing grid pieces 1a gap more fast extinguished, thereby promote the circuit breaker break performance.
The present invention has following advantage:
this Arc Distinguishing Device for Circuit Breakers 1. provided by the invention; It is on the basis that does not change Arc Distinguishing Device for Circuit Breakers original structure and operating characteristic; Through on flash barrier 2a, simply setting up latticed air dispelling hole A; Solved that present circuit breaker air pressure inside when the high short circuit current of disjunction can't in time discharge and the Shell of circuit breaker that causes bursts problem, promoted the job stability of circuit breaker greatly.
this Arc Distinguishing Device for Circuit Breakers 2. provided by the invention; Because the air dispelling hole A on the flash barrier 2a can promote the arc blow-out effect simultaneously; Be beneficial to and further electric arc introduced arc extinguishing grid pieces 1a gap fast and extinguish, therefore also promoted the interrupting performance of circuit breaker greatly.
this Arc Distinguishing Device for Circuit Breakers 3. provided by the invention, it need not increase other corollary apparatus and realize its function, so practiced thrift production cost to a certain extent, helps improving the competitiveness of product in market.
the foregoing description certainly only are explanation technical conceive of the present invention and characteristics, and its purpose is to let the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit the protection range of invention with this.All modifications that the spirit of main technical schemes is done according to the present invention all should be encompassed within protection scope of the present invention.
Claims (7)
1. Arc Distinguishing Device for Circuit Breakers; Comprise arc control device device (1) and arc insulating apparatus (2); Said arc insulating apparatus (2) comprises two flash barriers (2a); Be located at the some arc extinguishing grid pieces (1a) between two flash barriers (2a) and said arc control device device (1) comprises even interval, it is characterized in that all being on the said every flash barrier (2a) the latticed air dispelling hole (A) that has.
2. Arc Distinguishing Device for Circuit Breakers according to claim 1 is characterized in that said each air dispelling hole (A) all is positioned at the interstice coverage of adjacent two arc extinguishing grid pieces (1a).
3. Arc Distinguishing Device for Circuit Breakers according to claim 1 is characterized in that the air dispelling hole (A) on the said every flash barrier (2a) all is evenly spaced apart in horizontal and vertical.
4. according to claim 1 or 2 or 3 described Arc Distinguishing Device for Circuit Breakers, it is characterized in that said two flash barriers (2a) are symmetrically arranged.
5. according to claim 1 or 2 or 3 described Arc Distinguishing Device for Circuit Breakers, it is characterized in that said arc insulating apparatus (2) also comprises base plate (2b), the bottom of two flash barriers (2a) fuses through base plate (2b).
6. Arc Distinguishing Device for Circuit Breakers according to claim 5 is characterized in that said arc insulating apparatus (2) also comprises fixing or is shaped in the fixed contact connecting plate (2c) on the base plate (2b).
7. according to claim 1 or 2 or 3 described Arc Distinguishing Device for Circuit Breakers, it is characterized in that said arc control device device (1) comprises arc control device case (1b), said arc extinguishing grid pieces (1a) both sides are fixed on arc control device case (1b) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104434010A CN102522276A (en) | 2011-12-27 | 2011-12-27 | Arc-extinguishing device of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104434010A CN102522276A (en) | 2011-12-27 | 2011-12-27 | Arc-extinguishing device of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102522276A true CN102522276A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104434010A Pending CN102522276A (en) | 2011-12-27 | 2011-12-27 | Arc-extinguishing device of breaker |
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| Country | Link |
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| CN (1) | CN102522276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646832A (en) * | 2013-11-30 | 2014-03-19 | 德力西电气有限公司 | Arc striking and extinguishing device of circuit breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0231733A2 (en) * | 1985-11-15 | 1987-08-12 | Felten & Guilleaume Fabrik elektrischer Apparate Aktiengesellschaft | Arc quenching chamber |
| CN102005322A (en) * | 2010-12-10 | 2011-04-06 | 武汉长海电气科技开发有限公司 | Switch apparatus arc extinguish chamber |
| CN102290300A (en) * | 2011-07-07 | 2011-12-21 | 西安交通大学 | Grid arc extinguish chamber for low voltage circuit breaker |
| CN202384279U (en) * | 2011-12-27 | 2012-08-15 | 法泰电器（江苏）股份有限公司 | Arc extinguishing apparatus for circuit-breaker |
-
2011
- 2011-12-27 CN CN2011104434010A patent/CN102522276A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0231733A2 (en) * | 1985-11-15 | 1987-08-12 | Felten & Guilleaume Fabrik elektrischer Apparate Aktiengesellschaft | Arc quenching chamber |
| CN102005322A (en) * | 2010-12-10 | 2011-04-06 | 武汉长海电气科技开发有限公司 | Switch apparatus arc extinguish chamber |
| CN102290300A (en) * | 2011-07-07 | 2011-12-21 | 西安交通大学 | Grid arc extinguish chamber for low voltage circuit breaker |
| CN202384279U (en) * | 2011-12-27 | 2012-08-15 | 法泰电器（江苏）股份有限公司 | Arc extinguishing apparatus for circuit-breaker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646832A (en) * | 2013-11-30 | 2014-03-19 | 德力西电气有限公司 | Arc striking and extinguishing device of circuit breaker |
| CN103646832B (en) * | 2013-11-30 | 2016-06-29 | 德力西电气有限公司 | The arc leading and suppressing device of chopper |
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Application publication date: 20120627 |