CN102339689A - Circuit breaker having arc insulating apparatus - Google Patents
Circuit breaker having arc insulating apparatus Download PDFInfo
- Publication number
- CN102339689A CN102339689A CN2010102324558A CN201010232455A CN102339689A CN 102339689 A CN102339689 A CN 102339689A CN 2010102324558 A CN2010102324558 A CN 2010102324558A CN 201010232455 A CN201010232455 A CN 201010232455A CN 102339689 A CN102339689 A CN 102339689A
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- arc
- circuit breaker
- insulating apparatus
- control device
- arc insulating
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Abstract
The invention relates to a circuit breaker having an arc insulating apparatus, which comprises a circuit breaker main body and a secondary wiring terminal, wherein the top end of the circuit breaker main body is provided with an arc extinguishing chamber, an end cover is installed above the arc extinguishing chamber, the upper part of the circuit breaker main body which is arranged on the front end of the arc extinguishing chamber is provided with the arc insulating apparatus which can seal the end cover, and the arc extinguishing chamber is isolated from the interior on the front end of the circuit breaker main body through the arc insulating apparatus. Or the secondary wiring terminal is provided with the arc insulating apparatus which can seal the end cover, and the arc extinguishing chamber is isolated from the secondary wiring terminal through the arc insulating apparatus. The arc insulating apparatus separates the arc extinguishing chamber from an operating part and a controlling part inside the main body so as to protect the operating and the controlling elements inside the main body, to improve the insulation performance of the circuit breaker, to protect the personal safety of the operators and to prolong the service life of the circuit breaker.
Description
Technical field
The present invention relates to a kind of circuit breaker, belong to the low-pressure electronic equipment product field with arc insulating apparatus.
Background technology
Can produce electric arc during the circuit breaker disjunction.Electric arc is the charged free gas of a kind of high temperature, and the high heat that produces during the circuit breaker disjunction makes in the contact cavities and forms higher draught head with the external world, and intracavity gas outwards sprays along the slit, contains electric arc in the gas of injection, promptly so-called arcing.
Top at breaker body is equipped with arc control device, and arc control device contain many narrow slits, serves as the outwards passage of discharging of contact intracavity gas, contains electric arc in the emission gases.Arc control device tops has end shield to be used for preventing that arcing from spraying to preceding, the left and right sides and the upper end of circuit breaker, and the end shield space is relatively large, and the design certain structure.In general; Desirable structural design should reach: the electric arc that circuit breaker produces is all introduced in the extinguishing arc structure of arc extinguishing indoor design and is made its elimination; The gas of only remaining high temperature, high pressure gets in the end shield of arc control device upper end through arc control device; By the guide structure that designs in the end shield this part gas is discharged safely again, realize that at last control section, the operation part of isostasy and protective circuit breaker avoided damaging, protection operator personal safety.Particularly for withdrawable circuit breaker, above-mentioned end shield is installed on the drawer, and arc control device are installed on the body of circuit breaker; Body and drawer can be realized split operation, and this also is the place that withdrawable circuit breaker is superior to fixed circuit breaker, but during the withdrawable circuit breaker operate as normal; Body is inner at drawout chassis, and this also just needs between end shield and the arc control device is movable, and this just brings another problem: promptly unavoidably between end shield and arc control device, leave certain interval; Be unlikely to interfere when making things convenient for breaker body to get into drawout chassis, like this, the electric arc that when the circuit breaker disjunction, produces; Being charged particle possibly spray from this gap through remaining gas behind the arc control device, when particularly circuit breaker carries out the disjunction than the major break down electric current, can produce very huge breaking arc; At this time, arc control device often can not effectively eliminate charged particles whole in the electric arc, just might be to be connected with the electric conductor of circuit breaker inside and charged through the gas behind the arc control device like this; Because air pressure is very huge; These charged particles just might be not merely discharged in the guide structure in the end shield that designs, also can discharge from above-mentioned arc control device and the gap between the end shield, are injected in around the breaker body; Such as on the secondary terminal, on the control section, operating means; On the grounding system around the circuit breaker, cause very serious ground fault, phase fault accident etc. even, these hot gases possibly cause that also the fusing of part parts damages; Cause the loss of equipment, serious more can cause personal injury operating personnel.Be not only withdrawable circuit breaker, fixed circuit breaker also exists identical problem: end shield is arranged at the arc-extinguishing chamber of circuit breaker upper end through installation, also causes arc control device and end shield top to leave the gap.Thereby has a same problem of withdrawable circuit breaker.
Summary of the invention
The purpose of this invention is to provide a kind of circuit breaker with arc insulating apparatus, it has protective circuit breaker body interior device function.
The present invention adopts following technical scheme for this reason:
A kind of circuit breaker with arc insulating apparatus; Comprise breaker body and secondary connection terminal; The top of breaker body is equipped with arc control device; End shield is installed in the arc control device top, and it is characterized in that: be positioned at the arc insulating apparatus that arc control device front end place is provided with salable end shield on the top of said breaker body, this arc insulating apparatus is with the internal insulation of arc control device and breaker body front end.
Said arc insulating apparatus is a baffle plate.The top clamping of this baffle plate and breaker body or be made into integration with the pedestal of breaker body.
A kind of circuit breaker with arc insulating apparatus; Comprise breaker body and secondary connection terminal; The top of breaker body is equipped with arc control device; End shield is installed in the arc control device top, it is characterized in that: on said secondary connection terminal, be provided with the arc insulating apparatus of salable end shield, this arc insulating apparatus is isolated arc control device and secondary connection terminal.
Said arc insulating apparatus is a baffle plate.The shell clamping of this baffle plate and secondary connection terminal or be made into integration with the shell of secondary connection terminal.
The invention has the beneficial effects as follows:
The present invention has realized the isolation of breaker body top arc control device and inner each components and parts of breaker body and circuit breaker front end surrounding environment; When circuit breaker carries out breaking operation; It is inner that the present invention can effectively stop remaining high temperature and high pressure gas or charged particle to spray the entering breaker body, prevents that it from producing harmful effect to inner each components and parts and other damage is perhaps dangerous.
Description of drawings
Fig. 1 is an arc insulating apparatus sketch map of the present invention;
Fig. 2 is the position view of arc insulating apparatus of the present invention in circuit breaker;
Fig. 3 is the view of the formation sealing of arc insulating apparatus of the present invention in circuit breaker;
Fig. 4 is arc insulating apparatus of the present invention scheme of installation on the body in circuit breaker;
Fig. 5 does not have the sketch map that electric arc in the breaker body of arc insulating apparatus gets into the body front end;
Fig. 6 does not have the enlarged diagram that electric arc in the breaker body of arc insulating apparatus gets into the body front end;
Fig. 7 is the enlarged diagram with breaker body of arc insulating apparatus.
Embodiment
The present invention is a kind of circuit breaker with arc insulating apparatus; Comprise breaker body and secondary connection terminal; The top of breaker body is equipped with arc control device; End shield is installed in the arc control device top, is positioned at the arc insulating apparatus that arc control device front end place is provided with salable end shield on the top of breaker body, and this arc insulating apparatus is with the internal insulation of arc control device and breaker body front end.Said arc insulating apparatus is a baffle plate.The top clamping of this baffle plate and breaker body or be made into integration with the pedestal of breaker body.
The present invention also can be provided with the arc insulating apparatus of salable end shield on the secondary connection terminal, this arc insulating apparatus is isolated arc control device and secondary connection terminal.The shell clamping of this arc insulating apparatus and secondary connection terminal or be made into integration with the shell of secondary connection terminal.
Below in conjunction with accompanying drawing the present invention is done further narration.
As shown in Figure 5, there is contact system breaker body 3 inside among the present invention, and effect is the circuit that forms closed or disjunction.The top of contact system is arc control device 2, and arc control device 2 are installed in the top of breaker body 3, and the effect of arc control device 2 is exactly to extinguish contact system because the electric arc that the branch deenergizing produces.In the upper end of arc control device 2 end shield 5 is arranged, the structure of end shield 5 is corresponding with arc control device 2, and effect is water conservancy diversion, lead arc.
To withdrawable circuit breaker, end shield 5 is installed on the drawout chassis, and breaker body 3 is can in drawout chassis, slide into to skid off.So; End shield 5 is gapped with the arc control device 2 on breaker body 3 tops; The electric arc of enough arc control device 2 ejections of this gap gets in the components and parts between breaker body 3 inside and breaker body 3 front portions and the case 7, thereby breaker body 3 inner function and performances with anterior parts are caused adverse effect.
To fixed circuit breaker; End shield 5 is installed on the support at breaker body 3 two ends; But end shield 5 has the gap equally with the arc control device 2 on breaker body 3 tops; And then the electric arc that sprays from arc control device 2 can get into the components and parts of breaker body 3 inner components or front portion equally, causes negative consequence.
As shown in Figure 7; In one embodiment of the invention; Arc insulating apparatus 1 is installed on the support 6 of contact frame 4; Arc insulating apparatus 1 forms the hermetically-sealed construction that cooperates with the end shield 5 of arc control device 2 upper ends, gets into the components and parts of breaker body 3 inner components and front portion, like annex 8, operating mechanism 9, electrically operated institution 10 or the like thereby intercept from the arcing of arc control device 2 ejections.The existence of this arc insulating apparatus 1 has effectively been protected each parts and the anterior components and parts of breaker body 3 inside, thereby has been greatly reduced arcing to circuit breaker allomeric function and Effect on Performance.
This arc insulating apparatus 1 also can be made into integration with the pedestal 14 of breaker body 3, and arc insulating apparatus 1 as shown in Figure 4 is the bulge-structure at breaker body 3 pedestals 14 tops.
In other embodiments of the invention, different with the foregoing description is that this arc insulating apparatus is arranged on the shell of secondary connection terminal, in order to the sealing arc control device arc control device and secondary connection terminal is isolated.The shell clamping of this arc insulating apparatus and secondary connection terminal or be made into integration with the shell of secondary connection terminal.
Claims (8)
1. the circuit breaker with arc insulating apparatus comprises breaker body and secondary connection terminal, and the top of breaker body is equipped with arc control device, and end shield is installed in the arc control device top, it is characterized in that:
Be positioned at the arc insulating apparatus that arc control device front end place is provided with salable end shield on the top of said breaker body, this arc insulating apparatus is with the internal insulation of arc control device and breaker body front end.
2. the circuit breaker with arc insulating apparatus as claimed in claim 1 is characterized in that:
Said arc insulating apparatus is a baffle plate.
3. the circuit breaker with arc insulating apparatus as claimed in claim 2 is characterized in that:
The lower end of said baffle plate has the elasticity card, the top clamping of baffle plate and breaker body.
4. the circuit breaker with arc insulating apparatus as claimed in claim 2 is characterized in that:
The pedestal of said baffle plate and breaker body is made into integration.
5. the circuit breaker with arc insulating apparatus comprises breaker body and secondary connection terminal, and the top of breaker body is equipped with arc control device, and end shield is installed in the arc control device top, it is characterized in that:
On said secondary connection terminal, be provided with the arc insulating apparatus of salable end shield, this arc insulating apparatus is isolated arc control device and secondary connection terminal.
6. the circuit breaker with arc insulating apparatus as claimed in claim 5 is characterized in that:
Said arc insulating apparatus is a baffle plate.
7. the circuit breaker with arc insulating apparatus as claimed in claim 5 is characterized in that:
The shell clamping of said baffle plate and secondary connection terminal.
8. the circuit breaker with arc insulating apparatus as claimed in claim 5 is characterized in that:
The shell of said baffle plate and secondary connection terminal is made into integration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102324558A CN102339689A (en) | 2010-07-15 | 2010-07-15 | Circuit breaker having arc insulating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102324558A CN102339689A (en) | 2010-07-15 | 2010-07-15 | Circuit breaker having arc insulating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102339689A true CN102339689A (en) | 2012-02-01 |
Family
ID=45515354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102324558A Pending CN102339689A (en) | 2010-07-15 | 2010-07-15 | Circuit breaker having arc insulating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102339689A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842465A (en) * | 2012-09-03 | 2012-12-26 | 无锡新宏泰电器科技股份有限公司 | Top cover of pulling frame for circuit breaker |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2440261Y (en) * | 2000-09-08 | 2001-07-25 | 刘洪炉 | Rated-current adjustable plastic-casing type circuit breaker |
| US6388867B1 (en) * | 2000-09-29 | 2002-05-14 | Eaton Corporation | Flexible seal for circuit breaker arc gas exhaust system |
| CN201215792Y (en) * | 2008-05-08 | 2009-04-01 | 浙江加西亚电子电器有限公司 | Circuit breaker for electricity leakage |
| JP2009140838A (en) * | 2007-12-10 | 2009-06-25 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| CN101562097A (en) * | 2008-04-15 | 2009-10-21 | 通用电气公司 | Secondary circuit terminal block design for fixed type circuit breakers |
| CN201408683Y (en) * | 2009-05-07 | 2010-02-17 | 上海良信电器股份有限公司 | Arc-extinguishing chamber structure for double-breakpoint small-sized circuit breaker |
| CN201773779U (en) * | 2010-07-15 | 2011-03-23 | 北京人民电器厂有限公司 | Breaker with arc blocking device |
-
2010
- 2010-07-15 CN CN2010102324558A patent/CN102339689A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2440261Y (en) * | 2000-09-08 | 2001-07-25 | 刘洪炉 | Rated-current adjustable plastic-casing type circuit breaker |
| US6388867B1 (en) * | 2000-09-29 | 2002-05-14 | Eaton Corporation | Flexible seal for circuit breaker arc gas exhaust system |
| JP2009140838A (en) * | 2007-12-10 | 2009-06-25 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| CN101562097A (en) * | 2008-04-15 | 2009-10-21 | 通用电气公司 | Secondary circuit terminal block design for fixed type circuit breakers |
| CN201215792Y (en) * | 2008-05-08 | 2009-04-01 | 浙江加西亚电子电器有限公司 | Circuit breaker for electricity leakage |
| CN201408683Y (en) * | 2009-05-07 | 2010-02-17 | 上海良信电器股份有限公司 | Arc-extinguishing chamber structure for double-breakpoint small-sized circuit breaker |
| CN201773779U (en) * | 2010-07-15 | 2011-03-23 | 北京人民电器厂有限公司 | Breaker with arc blocking device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842465A (en) * | 2012-09-03 | 2012-12-26 | 无锡新宏泰电器科技股份有限公司 | Top cover of pulling frame for circuit breaker |
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Application publication date: 20120201 |