CN204332879U - Small circuit breaker mechanism and arc quenching system - Google Patents
Small circuit breaker mechanism and arc quenching system Download PDFInfo
- Publication number
- CN204332879U CN204332879U CN201420750199.5U CN201420750199U CN204332879U CN 204332879 U CN204332879 U CN 204332879U CN 201420750199 U CN201420750199 U CN 201420750199U CN 204332879 U CN204332879 U CN 204332879U
- Authority
- CN
- China
- Prior art keywords
- arc
- circuit breaker
- control device
- run
- tab
- 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.)
- Active
Links
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model belongs to electric elements technical field, relates to a kind of small circuit breaker mechanism and arc quenching system, comprises housing, described housing is provided with arc control device, above arc control device, is provided with solenoid; Surface of shell top is rotated and is provided with handle, and handle, at its lower end is connected with connecting rod, and the connecting rod other end connects grid action bars, is fixed with moving contact at the free end of grid action bars; The arc end arranged outside of described arc control device has fixed contact; Surface of shell lower end, be fixed with run-on tab corresponding to the outside of arc control device, run-on tab top forms bending top, and the beeline between described bending top and moving contact is 1mm.Basis is practical has done corresponding improvement on operating mechanism, expands the range of movement of moving contact divide-shut brake, adding out the connection performance apart from turn ensure that circuit breaker, being conducive to the breaking capacity that improve circuit breaker.
Description
Technical field
The utility model belongs to electric elements technical field, relates to a kind of small circuit breaker mechanism and arc quenching system.
Background technology
The breaking capacity of existing miniature circuit breaker is lower, the arc quenching effect of arc quenching system is poor.Opening apart from less between the dynamic and static contact of existing miniature circuit breaker, is unfavorable for the breaking capacity level that miniature circuit breaker reaches higher; Magnetic blow-out in arc quenching system, air-blowing effect and arc extinguishing path can not ensure that electric arc enters in arc control device device effectively, thus electric arc cannot be extinguished fast and effectively, thus lose metering function.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, simple, ingenious, the rational small circuit breaker mechanism of a kind of structure and arc quenching system are provided, when this breaker mechanism and arc quenching system work, breaking capacity is strong, arc quenching effect good, and current limiting capacity level is high.
Technical scheme according to the utility model provides: a kind of small circuit breaker mechanism and arc quenching system, is characterized in that: comprise housing, described housing is provided with arc control device, above arc control device, is provided with solenoid; Surface of shell top is rotated and is provided with handle, and handle, at its lower end is connected with connecting rod, and the connecting rod other end connects grid action bars, is fixed with moving contact at the free end of grid action bars; The arc end arranged outside of described arc control device has fixed contact; Surface of shell lower end, be fixed with run-on tab corresponding to the outside of arc control device, run-on tab top forms bending top, and the beeline between described bending top and moving contact is 1mm.
As further improvement of the utility model, described run-on tab arranged outside has magnetic blow-out coldplate.
As further improvement of the utility model, described magnetic blow-out coldplate is cooling iron plate or permanent-magnet materials sheet.
As further improvement of the utility model, described run-on tab is fixed on housing by dividing plate, forms arc extinguishing space between dividing plate and run-on tab.
Compared with prior art, advantage is the utility model: should increase opening apart from thus being conducive to improving breaking capacity of dynamic and static contact to solve, ensureing that normal divide-shut brake does not affect closing of power circuit breaker performance again.Basis is practical has done corresponding improvement on operating mechanism, expands the range of movement of moving contact divide-shut brake, adding out the connection performance apart from turn ensure that circuit breaker, being conducive to the breaking capacity that improve circuit breaker.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the scheme of installation of run-on tab in the utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, housing 1, fixed contact 2, moving contact 3, grid action bars 4, run-on tab 5, arc control device 6, solenoid 7, connecting rod 8, magnetic blow-out coldplate 9, dividing plate 10, bending top 11, handle 12 etc. are comprised.
As shown in Figure 1, 2, a kind of small circuit breaker mechanism of the utility model and arc quenching system, comprise housing 1, described housing 1 be provided with arc control device 6, be provided with solenoid 7 above arc control device 6; Housing 1 upper surface is rotated and is provided with handle 12, and handle 12 lower end is connected with connecting rod 8, and connecting rod 8 other end connects grid action bars 4, is fixed with moving contact 3 at the free end of grid action bars 4; The arc end arranged outside of described arc control device 6 has fixed contact 2; The surperficial lower end of housing 1, be fixed with run-on tab 5 corresponding to the outside of arc control device 6, run-on tab 5 top forms bending top 11, and the beeline between described bending top 11 and moving contact 3 is 1mm.
Described run-on tab 5 arranged outside has magnetic blow-out coldplate 9.
Described magnetic blow-out coldplate 9 is cooling iron plate or permanent-magnet materials sheet.
Described run-on tab 5 is fixed on housing 1 by dividing plate 10, forms arc extinguishing space between dividing plate 10 and run-on tab 5.
As shown in Figure 1, 2, the operation principle of the utility model product is as follows: in order to reach the object of the breaking capacity strengthening circuit breaker, add the distance of fixed contact 2 and moving contact 3, thus add and open distance between dynamic/static contact, improve the breaking capacity of circuit breaker.Be arranged on the grid action bars 4 on housing 1, its general principle is quadric chain.Due to the increase of opening distance of dynamic and static contact, circuit breaker closes normal combined floodgate and conducting to cause original operating mechanism to ensure.Because this increasing the length of connecting rod 8, expand the range of movement of moving contact 3, namely when counterclockwise driving handle motion, the stressed promotion latch components of the connecting rod 8 be attached thereto, latch components and moving contact and be integrated, composition train of mechanism, now train of mechanism clockwise movement and closing a floodgate under connecting rod active force, due to the improvement length of connecting rod, be conducive to the excess of stroke increasing circuit breaker.
Be inlaid in the arc quenching system that run-on tab 5 on housing 1 and grid action bars 4 constitute circuit breaker, because the arc quenching effect of former circuit breaker is poor, the electric arc that contact system produces cannot be incorporated in arc control device from run-on tab rapidly.Thus electric arc can not enter into grid fast, cause current limiting capacity poor.Therefore, run-on tab 5 structure improved: be namely unfavorable for that electric arc cannot enter in arc control device along run-on tab smoothly when moving contact separating brake is opened by original run-on tab bending top 11 apart from the 9mm(of moving contact distance), now be improved to run-on tab 5 apex structure distance moving contact 3 apart from being about 1mm, when ensureing not affect moving contact actuating length, the electric arc produced when more ensure that moving contact disjunction separates enters in arc control device along run-on tab smoothly, is conducive to arc extinction; Improve the structure of fixed contact 2: namely reduce 1.5mm by original static contact structure height, object ensure that distance when disconnecting than original dynamic/static contact increases 1.5mm than original distance and reaches the effect increasing and open distance, thus when ensureing disjunction, electric arc is better elongated and is conducive to entering in arc control device along run-on tab fast, effectively prevents Arc Back Strike Phenomena and gets metering function.Increase magnetic blow-out coldplate 9(simultaneously in the outside of run-on tab 5 and cool iron plate or permanent-magnet materials sheet), thus play the effect of magnetic blow-out and cooling fast, be conducive to electric arc and extinguish fast.
Housing 1 devises upper and lower dividing plate 10.When run-on tab 5 is fixed on housing by dividing plate 10, they can form the arc extinguishing space closed up and down on-board the circuit breaker, electric arc can not be run helter-skelter in circuit breaker, can, smoothly via segmentation, the cooling of magnetic blow-out, air-blowing and grating arc-extinguishing chamber, have directivity to discharge with air-flow.
Claims (4)
1. small circuit breaker mechanism and an arc quenching system, is characterized in that: comprise housing (1), described housing (1) is provided with arc control device (6), and arc control device (6) top is provided with solenoid (7); Housing (1) upper surface is rotated and is provided with handle (12), and handle (12) lower end is connected with connecting rod (8), and connecting rod (8) other end connects grid action bars (4), is fixed with moving contact (3) at the free end of grid action bars (4); The arc end arranged outside of described arc control device (6) has fixed contact (2); Housing (1) surperficial lower end, be fixed with run-on tab (5) corresponding to the outside of arc control device (6), run-on tab (5) top forms bending top (11), and the beeline between described bending top (11) and moving contact (3) is 1mm.
2. small circuit breaker mechanism as claimed in claim 1 and arc quenching system, is characterized in that: described run-on tab (5) arranged outside has magnetic blow-out coldplate (9).
3. small circuit breaker mechanism as claimed in claim 2 and arc quenching system, is characterized in that: described magnetic blow-out coldplate (9) is cooling iron plate or permanent-magnet materials sheet.
4. small circuit breaker mechanism as claimed in claim 1 and arc quenching system, is characterized in that: described run-on tab (5) is fixed on housing (1) by dividing plate (10), forms arc extinguishing space between dividing plate (10) and run-on tab (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750199.5U CN204332879U (en) | 2014-12-03 | 2014-12-03 | Small circuit breaker mechanism and arc quenching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750199.5U CN204332879U (en) | 2014-12-03 | 2014-12-03 | Small circuit breaker mechanism and arc quenching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204332879U true CN204332879U (en) | 2015-05-13 |
Family
ID=53169205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420750199.5U Active CN204332879U (en) | 2014-12-03 | 2014-12-03 | Small circuit breaker mechanism and arc quenching system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204332879U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511296A (en) * | 2017-02-23 | 2018-09-07 | 嘉灵科技有限公司 | Breaker with arc shield |
| WO2018228612A3 (en) * | 2017-06-17 | 2019-01-17 | 龚柱 | Electric isolating switch |
-
2014
- 2014-12-03 CN CN201420750199.5U patent/CN204332879U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108511296A (en) * | 2017-02-23 | 2018-09-07 | 嘉灵科技有限公司 | Breaker with arc shield |
| WO2018228612A3 (en) * | 2017-06-17 | 2019-01-17 | 龚柱 | Electric isolating switch |
| CN111052289A (en) * | 2017-06-17 | 2020-04-21 | 龚柱 | Electric isolating switch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201845730U (en) | Arc-extinguishing chamber of universal circuit breaker | |
| CN104934270B (en) | Circuit breaker | |
| CN105914110A (en) | Small-sized circuit breaker | |
| CN204257457U (en) | Breaker arc extinguishing mechanism | |
| CN204332879U (en) | Small circuit breaker mechanism and arc quenching system | |
| CN205069492U (en) | Outdoor permanent magnetism vacuum circuit breaker | |
| CN204696065U (en) | Circuit breaker | |
| CN206059220U (en) | A kind of contact arc-extinguishing mechanism of PC levels double power supply automatic transfer switch | |
| CN203260541U (en) | Circuit breaker arc distinguishing chamber device | |
| CN204011327U (en) | A kind of miniature circuit breaker of junction block auxiliary extinction of arc | |
| CN209199866U (en) | Breaker | |
| CN103489704A (en) | Operating device for vacuum circuit breaker | |
| CN202549755U (en) | Arc extinguishing system for plastic shell breaker with arc regurgitating preventing function | |
| CN201417721Y (en) | Electromagnetic short circuit protecting device of circuit breaker | |
| CN202678160U (en) | Mining kilovolt-level double-pole single-breakpoint air isolation reversing switch | |
| CN102915894B (en) | Arc-blowing device of direct-current circuit breaker | |
| CN207302929U (en) | A kind of breaker of plastic casing with compound arc extinction performance | |
| CN203931850U (en) | Novel control and protective switch contact system | |
| CN206259281U (en) | Connect the strong load-break switch of disjunction power | |
| CN204271021U (en) | With the breaker with double breaks and plastic case of disjunction screening arrangement | |
| CN203503500U (en) | Shell for control and protection of switch | |
| CN203910632U (en) | Disconnector for transformer | |
| CN203406226U (en) | Permanent magnetism vacuum circuit breaker | |
| CN211479929U (en) | Arc extinguishing switch | |
| CN202917415U (en) | Circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |