CN207690708U - A kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker - Google Patents
A kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker Download PDFInfo
- Publication number
- CN207690708U CN207690708U CN201720623904.9U CN201720623904U CN207690708U CN 207690708 U CN207690708 U CN 207690708U CN 201720623904 U CN201720623904 U CN 201720623904U CN 207690708 U CN207690708 U CN 207690708U
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- Prior art keywords
- arc
- chamber
- extinguishing
- annular base
- environmental protection
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Abstract
The utility model discloses a kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker, including spark chamber, arc-extinguish chamber, moving contact, static contact and annular base, the arc-extinguish chamber is mounted on case top, and metal otter board is provided between arc-extinguish chamber and shell, the arc-extinguish chamber inner top is provided with static contact, and spring is nested in outside static contact, the spring is connect with piston sheet metal, piston sheet metal lower part is provided with spark chamber, and spark chamber offers jet port, the annular base is mounted below spark chamber, and magnetic induction loop is provided in annular base, the moving contact is mounted on housing bottom, and diaphragm seal is fixed on moving contact, arc extinguishing screen both sides are both provided with snap-gauge, and the bayonet set on snap-gauge and shell is connected, the run-on tab is mounted below arc extinguishing screen.The utility model can efficient arc extinguishing, gas injection speed is powerful, while the arc-chutes can recycle noxious material, and poison gas is effectively prevent to leak.
Description
Technical field
The utility model is related to technical field of electric equipment, specially a kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker.
Background technology
Currently, SF6 has lot of advantages as a kind of insulating gas, it is a kind of colourless, odorless, nontoxic, non-flammable
Inert gas, stable chemical performance simultaneously have excellent cooling performance.SF6 gases issue biochemical reaction in high arc temperature effect
And heat is absorbed, SF6 gases capture electronics under high temperature action, make the reduction of the action time constant of arc voltage and electric arc, because
The dielectric strength of this SF6 gas rises quickly, so that the port isolation cut-off is restored to higher insulation in a short period of time strong
Degree, has preferable recovery characteristics, mainly by three kinds of structures, double voltage breakers are singly broken the breaker made using SF6 gases
Road device and magnetic vortex type breaker, double voltage breakers are divided into higher-pressure region and low-pressure area, and the structure is complex, while SF6 gases exist
Condensation is easy when higher pressure, therefore double voltage breakers are to be gradually substituted；Magnetic vortex type breaker utilizes the work of magnetic field Lorentz force
With making electric arc high speed rotation and then to make arc extinction；For single voltage breaker using relatively broad, only there are one baric systerms for it, lead to
The relative motion for crossing piston-cylinder carries out gas injection, and then realizes arc extinguishing；Current single voltage breaker by pressure shield from
Body effect extrudes gas, insufficient pressure；With the reduction of gas, gas injection speed can reduce current single voltage breaker,
It is unfavorable for arc extinguishing；Meanwhile with the downslide of moving contact, electric arc is elongated, sprays the air pressure that gas needs and is also required to accordingly increase,
It is implemented in the prior art relatively complicated；In addition noxious material is generated after breaker reaction, recycling is more troublesome.
Invention content
The purpose of this utility model is to provide a kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker, to solve in above-mentioned background technology
The problem of proposition, possessed advantageous effect are：Can efficient arc extinguishing, gas injection speed is powerful, while the arc-chutes can
Noxious material is recycled, poison gas is effectively prevent to leak.
To achieve the above object, the utility model provides the following technical solutions：A kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker, packet
Spark chamber, arc-extinguish chamber, moving contact, static contact and annular base are included, the arc-extinguish chamber is mounted on case top, and arc-extinguish chamber and shell
Metal otter board is provided between body, the arc-extinguish chamber inner top is provided with static contact, and spring is nested in outside static contact, described
Spring is connect with piston sheet metal, and piston sheet metal lower part is provided with spark chamber, and spark chamber offers jet port, described
Annular base is mounted below spark chamber, and magnetic induction loop is provided in annular base, and the moving contact is mounted on housing bottom,
And diaphragm seal is fixed on moving contact, arc extinguishing screen both sides are both provided with snap-gauge, and snap-gauge is matched with the bayonet set on shell
Connection is closed, the run-on tab is mounted below arc extinguishing screen.
Preferably, SF6 gases are filled in the spark chamber, and the jet port on spark chamber is sealed using sealing with wax.
Preferably, it is provided with heat emission hole on the annular base.
Preferably, the mesh on the metal otter board is in regular hexagon.
Preferably, it is provided with trigone ring among the annular base.
Compared with prior art, the utility model has the beneficial effects that：The equipment, will not when being recycled to breaker
The diffusion for causing toxic gas, greatly improves safety and the feature of environmental protection, in addition, the electric arc generated when open circuit is bigger, magnetic induction loop
The magnetic field of generation is stronger, and the speed of SF6 gas injections is faster, this structure just can be according to electric arc without additional regulating mechanism
Size can only arc extinguishing, since the pulling force of spring becomes range line variation with the shape, and magnetic attraction and operating distance nonlinear change, because
, when piston sheet metal is close to magnetic induction loop, speed, which is returned, gradually to be accelerated for this, to ensure that SF6 gases will not be because in the arc extinguishing later stage
Deficiency is caused stress for the reduction of gas storage, SF6 gases can be more and more powerful during arc extinguishing, effectively improves arc extinguishing effect
Fruit.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional view of the utility model；
Fig. 3 is the topology view of the utility model annular base；
Fig. 4 is the utility model side view；
Fig. 5 is the topology view of the utility model run-on tab；
Fig. 6 is the topology view of the utility model metal otter board.
In figure：1- spark chambers；2- arc-extinguish chambers；3- arc extinguishing screens；4- run-on tabs；5- shells；6- diaphragm seals；7- moving contacts；
8- static contacts；9- trigone rings；10- springs；11- piston sheet metals；12- magnetic induction loops；13- heat emission holes；14- annular bases；15-
Metal otter board；16- jet ports；17- bayonets；18- snap-gauges；19- mesh.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
- 6 are please referred to Fig.1, a kind of embodiment provided by the utility model：A kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker, including
Spark chamber 1, arc-extinguish chamber 2, moving contact 7, static contact 8 and annular base 14, arc-extinguish chamber 2 are mounted on 5 top of shell, and arc-extinguish chamber 2
Metal otter board 15 is provided between shell 5,2 inner top of arc-extinguish chamber is provided with static contact 8, and spring 10 is nested in static contact 8
Outside, spring 10 are connect with piston sheet metal 11, and 11 lower part of piston sheet metal is provided with spark chamber 1, and spark chamber 1 opens up
There is jet port 16, the annular base 14 is mounted on 1 lower section of spark chamber, and magnetic induction loop 12 is provided in annular base 14, institute
It states moving contact 7 and is mounted on 5 bottom of shell, and diaphragm seal 6 is fixed on moving contact 7,3 both sides of arc extinguishing screen are both provided with card
Plate 18, and the bayonet 17 set on snap-gauge 18 and shell 5 is connected, the run-on tab 4 is mounted on 3 lower section of arc extinguishing screen, arc extinguishing
SF6 gases are filled in chamber 1, and the jet port 16 on spark chamber 1 is sealed using sealing with wax, and is provided on annular base 14 scattered
Hot hole 13, the mesh 19 on metal otter board 15 are in regular hexagon, and trigone ring 9 is provided among annular base 14.
Operation principle：In use, when the abnormal conditions such as short circuit occurs in circuit, fuse failure, 7 slide downward of movable contact；
Electric arc is generated between movable contact 7 and stationary contact 8 at this time, which generates high temperature and melt the wax at jet port 16；It is touched with dynamic
The downslide electric arc of point 7 elongates, when movable contact skims over the annular base 14, arc transfer to annular base 14 and stationary contact 8
Between, magnetic induction loop 12 is powered at this time, and the alternating current of high current makes magnetic induction loop generate strong magnetic field, and the magnetic field is golden by piston
Belong to piece 11 to adsorb, elastic 10 deformation occur for the tension spring, and piston sheet metal 11 is along 1 side wall slide downward of spark chamber and by SF6 gas
Body squeezes away from jet port 16, the end of 16 face stationary contact 8 of jet port, and under the action of high-intensity magnetic field, SF6 gases are from injection
16 high speed of mouth sprays, and rapidly by arc extinction, after arc extinguishing, 12 internal cause of magnetic induction loop does not have the disappearance of electric current flowing magnetic field,
The piston sheet metal resets under the action of tension spring, and the air pressure in spark chamber 1 at this time reduces, toxic after reaction in arc-chutes
Gas is recycled in spark chamber 1.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Claims (5)
1. a kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker, including arc-extinguish chamber（2）, arc extinguishing screen（3）, run-on tab（4）, moving contact（7）
And annular base（14）, it is characterised in that：The arc-extinguish chamber（2）Mounted on shell（5）Top, and arc-extinguish chamber（2）With shell（5）
Between be provided with metal otter board（15）, the arc-extinguish chamber（2）Inner top is provided with static contact（8）, and spring（10）It is nested in quiet
Contact（8）Outside, the spring（10）With piston sheet metal（11）Connection, the piston sheet metal（11）Lower part is provided with arc extinguishing
Chamber（1）, and spark chamber（1）Offer jet port（16）, the annular base（14）Mounted on spark chamber（1）Lower section, and annular
Pedestal（14）In be provided with magnetic induction loop（12）, the moving contact（7）Mounted on shell（5）Bottom, and diaphragm seal（6）It is fixed on
Moving contact（7）On, the arc extinguishing screen（3）Both sides are both provided with snap-gauge（18）, and snap-gauge（18）With shell（5）On the bayonet that sets
（17）It is connected, the run-on tab（4）Mounted on arc extinguishing screen（3）Lower section.
2. a kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker according to claim 1, it is characterised in that：The spark chamber（1）It is interior
Filled with SF6 gases, and spark chamber（1）On jet port（16）It is sealed using sealing with wax.
3. a kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker according to claim 1, it is characterised in that：The annular base（14）
On be provided with heat emission hole（13）.
4. a kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker according to claim 1, it is characterised in that：The metal otter board（15）
On mesh（19）In regular hexagon.
5. a kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker according to claim 1, it is characterised in that：The annular base（14）
Centre is provided with trigone ring（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720623904.9U CN207690708U (en) | 2017-06-01 | 2017-06-01 | A kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720623904.9U CN207690708U (en) | 2017-06-01 | 2017-06-01 | A kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207690708U true CN207690708U (en) | 2018-08-03 |
Family
ID=62987710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720623904.9U Expired - Fee Related CN207690708U (en) | 2017-06-01 | 2017-06-01 | A kind of environmental protection magnetic arc-extinguishing chamber of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207690708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111477483A (en) * | 2020-04-27 | 2020-07-31 | 阜阳市光普照明科技有限公司 | Arc extinguishing mechanism and circuit breaker based on same |
| CN112786325A (en) * | 2021-03-09 | 2021-05-11 | 刘宁琳 | Circuit breaker arc breaking structure with anti-corrosion effect |
-
2017
- 2017-06-01 CN CN201720623904.9U patent/CN207690708U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111477483A (en) * | 2020-04-27 | 2020-07-31 | 阜阳市光普照明科技有限公司 | Arc extinguishing mechanism and circuit breaker based on same |
| CN112786325A (en) * | 2021-03-09 | 2021-05-11 | 刘宁琳 | Circuit breaker arc breaking structure with anti-corrosion effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20200601 |