CN102629536A - Arc extinguish chamber of circuit breaker - Google Patents
Arc extinguish chamber of circuit breaker Download PDFInfo
- Publication number
- CN102629536A CN102629536A CN2012100974531A CN201210097453A CN102629536A CN 102629536 A CN102629536 A CN 102629536A CN 2012100974531 A CN2012100974531 A CN 2012100974531A CN 201210097453 A CN201210097453 A CN 201210097453A CN 102629536 A CN102629536 A CN 102629536A
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- run
- arc
- grid
- circuit breaker
- support
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
Disclosed is an arc extinguish chamber of a circuit breaker, which belongs to the technical field of low-voltage appliances. The arc extinguish chamber comprises a grid assembly, a support, a cover plate and a fixing part, wherein the grid assembly comprises a plurality of sequentially distributed grids, a run-on plate which is arranged in front of the distribution direction of the grids and a pair of side plates which are used for fixing the grids and the run-on plate, the support is used for fixing the grid assembly, the cover plate is arranged on the upper portion of the support, and the fixing part is used for fixing the cover plate with the support. The arc extinguish chamber is characterized in that the run-on plate is provided with a first run-on groove or a first run-on hole, and a first gas channel which is led from the arc extinguish chamber interior to the exterior on the side of the run-on plate is formed through the first run-on groove or the first run-on hole. The arc extinguish chamber has the advantages that the gas pressure in the arc extinguish chamber can be reduced quickly, electric arcs can smoothly enter into grid areas, arc lengthening and arc cutting are achieved, and the breaking capacity of the circuit breaker is improved.
Description
Technical field
The invention belongs to the low voltage electrical apparatus technology field, be specifically related to a kind of arc-extinguishing chamber of circuit breaker, these arc control device are installed in the circuit breaker, when the dynamic and static contact of breaker contact system separates, play the arc extinguishing effect
Background technology
are well-known, and circuit breaker dynamic and static contact of its contact system in breaking course is opened, and produce electric arc.The length of electric arc has directly influenced breaking capacity, and the long then arc voltage of electric arc is high, and is very favourable to disjunction, therefore, makes electric arc fully get into arc control device, elongates electric arc, is the important method that improves the circuit breaker breaking capacity.As shown in Figure 3, the electric arc A that the fixed contact 61 of breaker contact system 6, moving contact 62 produce when breaking current gets into the grid panel region of arc control device, elongates the ＇ into electric arc A.In prior art; Grid sheet 11 zones that are made up of many pieces short grid sheets 111, many pieces long grid sheets 112 are surrounded by run-on tab 12, side plate; Cause the air pressure of the arc extinguishing interior space 9 higher; Get into arc control device smoothly thereby hindered electric arc, be unfavorable for the elongation of electric arc, the breaking capacity of circuit breaker is reduced.
In view of above-mentioned prior art, be necessary to improve, for this reason, the applicant has done useful design, and the technical scheme that will introduce below produces under this background
Summary of the invention
task of the present invention be to provide a kind of make simple, easy for installation, can reduce the air pressure of the arc extinguishing interior space, effectively elongate electric arc, improve the arc-extinguishing chamber of circuit breaker of breaking capacity.
task of the present invention is accomplished like this; A kind of arc-extinguishing chamber of circuit breaker; The support, one that comprises a grid chip module, a fixing said grid chip module is disposed at the cover plate on support top and said cover plate is fixed in the fixture on the said support; Described grid chip module comprises the grid sheet that many pieces of orders are arranged, and one is disposed at the run-on tab of above-mentioned grid sheet orientation front side, a pair of side plate that is used for fixing said grid sheet and run-on tab; It is characterized in that: offer first striking groove or the hole on the described run-on tab, be formed with first gas passage that leads to run-on tab side outside from arc control device inside through the first striking groove or hole.
are provided with the ionized layers that disappears in the described support in a concrete embodiment of the present invention; Described grid sheet comprises short grid sheet and long grid sheet, and short grid sheet is between long grid sheet and described run-on tab; Be coated with on the long grid sheet and be disposed at the inboard baffle plate of side plate.
are in another concrete embodiment of the present invention; Offer second striking groove or the hole at least one side plate of said pair of side plates, be formed with second gas passage that leads to side plate side outside from arc control device inside through the second striking groove or hole.
the present invention is led to the first outside gas passage of run-on tab side thereby be formed with from arc control device inside, further through on run-on tab, offering first striking groove or the hole; Offer second striking groove or the hole at least one side plate of pair of side plates; Lead to the second outside gas passage of side plate side thereby be formed with,, cause the air pressure rising of area of space in the arc control device when electric arc gets into arc control device from arc control device inside; This moment is because the existence of first, second gas passage; Gases at high pressure discharge from the above-mentioned gas passage, so can reduce the gas pressure of area of space in the arc control device fast, make electric arc can get into the grid panel region smoothly; Realize elongating the purpose of electric arc, arc cutting, help improving the breaking capacity of circuit breaker.
Description of drawings
Fig. 1 is the explosive view of arc-extinguishing chamber of circuit breaker of the present invention.
Fig. 2 is the cutaway view of arc-extinguishing chamber of circuit breaker of the present invention.
The schematic diagram that
Fig. 3 is elongated for electric arc between dynamic and static contact.
Fig. 4 is an example structure figure of run-on tab according to the invention.
Fig. 5 is an example structure figure of side plate according to the invention.
Among
figure: 1. grid chip module, 11. grid sheets, 111. are lacked grid sheets, 112. long grid sheets, 12. run-on tabs, 121. first striking grooves or hole, 13. side plates, 131. second striking grooves or hole, 14. baffle plates; 2. support; 3. ionized layers disappears; 4. cover plate; 5. fixture; 6. contact system, 61. fixed contacts, 62. moving contacts; 7. first gas passage; 8. second gas passage; 9. the arc extinguishing interior space.
Embodiment
can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to technical scheme of the present invention, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.
see also Fig. 1 and combine Fig. 2; A kind of arc-extinguishing chamber of circuit breaker of the present invention, these arc control device comprise that a grid chip module 1, is fixed the support 2 of said grid chip module 1, the ionized layerses 3, that disappear that are disposed in the support 2 are disposed at the cover plate 4 on support 2 tops and said cover plate 4 is fixed in the fixture 5 on the said support 2.Described grid chip module 1 comprises the grid sheet 11 that many pieces of orders are arranged; Described grid sheet 11 comprises short grid sheet 111 and long grid sheet 112; Short grid sheet 111 is between long grid sheet 112 and described run-on tab 12; One is disposed at the run-on tab 12 of above-mentioned grid sheet orientation front side, a pair of side plate 13 that is face-to-face setting each other and is used for fixing said long grid sheet 112, short grid sheet 111 and run-on tab 12, and it is inboard and be coated on the baffle plate 14 on the long grid sheet 112 to be disposed at pair of side plates 13.On described run-on tab 12, offer the first striking groove or hole 121; Be formed with first gas passage 7 that leads to run-on tab side outside from arc control device inside through the first striking groove or hole 121; By first gas passage 7; The air pressure in the arc extinguishing interior space 9 zones is significantly reduced, thereby arc energy is effectively elongated.
further; Offer the second striking groove or hole 131 at least one side plate 13 of said pair of side plates 13; Be formed with second gas passage 8 that leads to side plate side outside from arc control device inside through the second striking groove or hole 131; By second gas passage 8, can quicken the air pressure decrease speed in the arc extinguishing interior space 9 zones more, thereby more help effective elongation of electric arc.
see also Fig. 4; This figure has disclosed a preferred but not exclusive embodiment structure chart of run-on tab 12 according to the invention; The first striking groove or hole 121 on the said run-on tab 12 are the V-type groove of a upward opening, and this V-type groove is opened in the crown center of run-on tab 12 short transverses.
see also Fig. 5; This figure has disclosed a preferred but not exclusive embodiment structure chart of side plate 13 according to the invention; The second striking groove or hole 131 on the said side plate 13 are a through hole; The shape of said through hole does not receive any restriction with the position of offering yet, and is illustrated as a rectangular opening among the figure, and this rectangular opening is opened in middle part one side of run-on tab 12 short transverses.
To sum up; Key problem of the present invention is: through first, second striking groove or the hole of on run-on tab 12, side plate 13, offering 121,131, thereby be formed with first, second gas passage 7,8, can effectively guide the gas in the arc control device outside arc control device, to discharge by first, second gas passage 7,8; Thereby reduce the arc control device internal gas pressure fast; Make electric arc can get into the grid panel region in the arc control device smoothly, effectively elongated electric arc, improve the breaking capacity of circuit breaker
Claims (3)
1.
a kind of arc-extinguishing chamber of circuit breaker; The support (2), one that comprises a grid chip module (1), a fixing said grid chip module (1) is disposed at the cover plate (4) on support (2) top and said cover plate (4) is fixed in the fixture (5) on the said support (2); Described grid chip module (1) comprises the grid sheet (11) that many pieces of orders are arranged; One is disposed at the run-on tab (12) of above-mentioned grid sheet orientation front side; The a pair of side plate (13) that is used for fixing said grid sheet (11) and run-on tab (12); It is characterized in that: offer the first striking groove or hole (121) on the described run-on tab (12), be formed with first gas passage (7) that leads to run-on tab side outside from arc control device inside through the first striking groove or hole (121).
2.
arc-extinguishing chamber of circuit breaker according to claim 1 is characterized in that being provided with in the described support (2) ionized layers that disappears (3); Described grid sheet (11) comprises short grid sheet (111) and long grid sheet (112), and short grid sheets (111) are positioned between long grid sheet (112) and the described run-on tab (12); Be coated with on the long grid sheet (112) and be disposed at the inboard baffle plate (14) of side plate (13).
3.
Arc-extinguishing chamber of circuit breaker according to claim 1 and 2; It is characterized in that offering the second striking groove or hole (131) at least one side plate (13) of said pair of side plates (13), be formed with through the second striking groove or hole (131) and lead to outside second gas passage (8) of side plate side from arc control device inside
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100974531A CN102629536A (en) | 2012-04-06 | 2012-04-06 | Arc extinguish chamber of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100974531A CN102629536A (en) | 2012-04-06 | 2012-04-06 | Arc extinguish chamber of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102629536A true CN102629536A (en) | 2012-08-08 |
Family
ID=46587775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100974531A Pending CN102629536A (en) | 2012-04-06 | 2012-04-06 | Arc extinguish chamber of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102629536A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0562565A (en) * | 1991-09-03 | 1993-03-12 | Fuji Electric Co Ltd | Arc extinguishing device of circuit breaker |
| JP2000030596A (en) * | 1998-07-13 | 2000-01-28 | Toshiba Fa Syst Eng Corp | Arc-extinguishing device |
| CN201112307Y (en) * | 2007-08-24 | 2008-09-10 | 何越江 | Quenching chamber of circuit breaker |
| 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 |
| CN201886932U (en) * | 2010-04-16 | 2011-06-29 | 浙江森泰电器厂 | Arc extinguish chamber |
| CN102129925A (en) * | 2011-04-02 | 2011-07-20 | 常熟开关制造有限公司(原常熟开关厂） | Arc-extinguishing chamber of circuit breaker with free-eliminating device |
| CN102129924A (en) * | 2011-04-02 | 2011-07-20 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguish chamber structure of breaker |
| CN201966160U (en) * | 2011-04-02 | 2011-09-07 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker arc extinguishing chamber with deionization function |
| US20110259852A1 (en) * | 2010-04-27 | 2011-10-27 | Schneider Electric Industries Sas | Valve system for an arc extinguishing chamber and circuit breaker comprising same |
-
2012
- 2012-04-06 CN CN2012100974531A patent/CN102629536A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0562565A (en) * | 1991-09-03 | 1993-03-12 | Fuji Electric Co Ltd | Arc extinguishing device of circuit breaker |
| JP2000030596A (en) * | 1998-07-13 | 2000-01-28 | Toshiba Fa Syst Eng Corp | Arc-extinguishing device |
| CN201112307Y (en) * | 2007-08-24 | 2008-09-10 | 何越江 | Quenching chamber of circuit breaker |
| CN201886932U (en) * | 2010-04-16 | 2011-06-29 | 浙江森泰电器厂 | Arc extinguish chamber |
| US20110259852A1 (en) * | 2010-04-27 | 2011-10-27 | Schneider Electric Industries Sas | Valve system for an arc extinguishing chamber and circuit breaker comprising same |
| 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 |
| CN102129925A (en) * | 2011-04-02 | 2011-07-20 | 常熟开关制造有限公司(原常熟开关厂） | Arc-extinguishing chamber of circuit breaker with free-eliminating device |
| CN102129924A (en) * | 2011-04-02 | 2011-07-20 | 常熟开关制造有限公司(原常熟开关厂） | Arc extinguish chamber structure of breaker |
| CN201966160U (en) * | 2011-04-02 | 2011-09-07 | 常熟开关制造有限公司(原常熟开关厂） | Circuit breaker arc extinguishing chamber with deionization function |
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Application publication date: 20120808 |