CN203312220U - Arc extinguishing device for circuit breaker - Google Patents
Arc extinguishing device for circuit breaker Download PDFInfo
- Publication number
- CN203312220U CN203312220U CN201320366144XU CN201320366144U CN203312220U CN 203312220 U CN203312220 U CN 203312220U CN 201320366144X U CN201320366144X U CN 201320366144XU CN 201320366144 U CN201320366144 U CN 201320366144U CN 203312220 U CN203312220 U CN 203312220U
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- China
- Prior art keywords
- arc extinguishing
- arc
- extinguishing grid
- grid pieces
- concave
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Abstract
The utility model discloses an arc extinguishing device for a circuit breaker. According to the technical scheme, the arc extinguishing device comprises arc isolating plates and a plurality of arc extinguishing grid sheets, wherein the arc isolating plates are arranged on two sides of the arc extinguishing device; the arc extinguishing grid sheets are fixed between the arc isolating plates and arranged at intervals; the arc extinguishing grid sheets are provided with notches, the notches are manufactured in an integrated manner and are in a double-concave shape, the double-concave-shaped notches comprises a first concave notch and a second concave notch, the first concave notch is located on the outer side of the arc extinguishing grid sheets and arranged in a bilaterally symmetrical manner, the second concave notch is arranged at the inner side of the first concave notch and located on one side of the symmetrical centerline of the first concave notch, and the shapes of the notches of each two arc extinguishing grid sheets adjacent to each other vertically are in a bilaterally symmetrical and staggered manner; the arc extinguishing grid sheet at the top end is provided with an end tab; the concave notches are U-shaped; and two ends of each arc extinguishing grid sheet are provided with a plurality of projections, the arc isolating plates are provided with fixing holes, the fixing holes are arranged in correspondence to the projections, and the projections are inserted in and fixedly riveted with the fixing holes. The arc extinguishing device of the circuit breaker overcomes the shortcoming that an electric arc fails to rapidly and effectively enter an arc extinguishing chamber in the prior art, arc striking is rapid, and the arc extinguishing capability is effectively improved.
Description
Technical field
The utility model relates to a kind of arc-control device, is specifically related to a kind of Arc Distinguishing Device for Circuit Breakers.
Background technology
Arc-control device is the position of an outbalance in arc extinguishing system of circuit breaker, and it is all to refill in the arc control device installation cavity that is fitted on circuit breaker after adopting arc extinguishing grid pieces to assemble together riveted with flash barrier usually.
In the arc-control device of prior art, neighbouring arc extinguishing grid pieces bottom notch shape size is all consistent, all to be symmetrical U-shaped breach, during assembling, between arc extinguishing grid pieces, marshalling is overlapping, and noninterlace is irregular, can not divides the electric arc produced of having no progeny effectively to cut to circuit breaker, thereby cause the arc extinction performance of circuit breaker to reduce.In addition, the arc extinguishing grid pieces that in existing arc-control device, top is born the striking effect lacks effective striking position, makes the electric arc produced after the circuit breaker segmentation can not effectively enter rapidly arc control device.
The utility model content
Deficiency for the prior art existence, the utility model provides a kind of Arc Distinguishing Device for Circuit Breakers, this Arc Distinguishing Device for Circuit Breakers can overcome the defect that electric arc that the prior art arc-control device exists can not enter arc control device fast and effectively, and striking is rapid, effectively improves its arc extinguishing ability.
For achieving the above object, the utility model provides following technical scheme: a kind of Arc Distinguishing Device for Circuit Breakers, comprise the flash barrier of both sides and be fixed between flash barrier and be the some arc extinguishing grid pieces that are intervally arranged, on described arc extinguishing grid pieces, be equipped with breach, described breach is integrated the double concave breach of setting, described double concave breach comprises the second concave indentation that is arranged on arc extinguishing grid pieces symmetrical the first concave indentation in the outside and is arranged on the first concave indentation inboard, described the second concave indentation be arranged on the first concave indentation symmetrical center line a side, the shape left-right symmetric of described neighbouring arc extinguishing grid pieces breach is staggered, the arc extinguishing grid pieces on described top is provided with run-on tab.
The utility model further is set to, and described concave indentation is U-shaped.
By adopting technique scheme, on arc extinguishing grid pieces, be equipped with the dual U-shaped breach, the second U-shaped breach be arranged on the first U-shaped breach symmetrical center line a side, the shape left-right symmetric of neighbouring arc extinguishing grid pieces breach is staggered, reduced the resistance that electric arc enters arc extinguishing grid pieces, shorten the arcing time, the interaction force produced between the magnetic field produced by arc current and grid sheet, electric arc is attracted in the grid sheet, by the staggered gap structure of arc extinguishing grid pieces, more fast and effectively electric arc is divided into to a string short arc, until electric arc can not maintain burning, from horizontal blanking, effectively protected the interior equipment of circuit breaker not by scaling loss, greatly improved the breaking capacity of circuit breaker, the arc extinguishing grid pieces on top is provided with run-on tab, further reduce the resistance that electric arc enters, make electric arc can enter more fast arc extinguishing grid pieces, improve arc extinguishing efficiency, can under the prerequisite that does not change the breaker body original structure, change by simple planform, solved the defect topic that electric arc can not effectively enter arc control device fast, striking is rapid, effectively improves its arc extinguishing ability.
The utility model further is set to, and described arc extinguishing grid pieces both sides are equipped with some projections, and on described flash barrier, corresponding described raised position is provided with for projection and supports into the fixing location hole of riveted.
By adopting technique scheme, the arc extinguishing grid pieces both sides are equipped with some projections, on flash barrier, the respective protrusions position is provided with for projection and supports into the fixing location hole of riveted, arc extinguishing grid pieces is connected more solid and reliable fixing and be with flash barrier by projection and is intervally arranged with the riveted of location hole, this is simple in structure, guarantees that simultaneously equipment connection is reliable and stable.
The utility model further is set to, and described flash barrier is made by insulation board.
By adopting technique scheme, flash barrier is made by insulation board, guarantees the insulating reliability between arc extinguishing grid pieces, makes simultaneously arc extinguishing grid pieces fixing more reliable with it.
The utility model further is set to, and arc extinguishing grid pieces and the run-on tab on described top are wholely set.
By adopting technique scheme, arc extinguishing grid pieces and the run-on tab on top are wholely set, simple in structure, easy to process, run-on tab directly, from projection on arc extinguishing grid pieces, need to not set up run-on tab in addition on the arc extinguishing grid pieces on top, guarantee simultaneously the connection reliability of run-on tab and arc extinguishing grid pieces.
The accompanying drawing explanation
Fig. 1 is the vertical view of the utility model arc extinguishing grid pieces;
Fig. 2 is the end view of the utility model Arc Distinguishing Device for Circuit Breakers;
Fig. 3 is the end view of the arc extinguishing grid pieces on the utility model top.
Reference numeral: 1, flash barrier; 2, arc extinguishing grid pieces; 3, the first concave indentation; 4, the second concave indentation; 5, projection; 6, location hole; 7, run-on tab.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model Arc Distinguishing Device for Circuit Breakers embodiment is described further.
A kind of Arc Distinguishing Device for Circuit Breakers, comprise the flash barrier 1 of both sides and be fixed on 1 of flash barrier and be the some arc extinguishing grid pieces 2 that are intervally arranged, on arc extinguishing grid pieces 2, be equipped with breach, breach is integrated the double concave breach of setting, the double concave breach comprises the second concave indentation 4 that is arranged on symmetrical the first concave indentation 3 in arc extinguishing grid pieces 2 outsides and is arranged on the first concave indentation 3 inboards, the second concave indentation 4 be arranged on the first concave indentation 3 symmetrical center line a side, the shape left-right symmetric of neighbouring arc extinguishing grid pieces 2 breach is staggered, the arc extinguishing grid pieces 2 on top is provided with run-on tab 7, concave indentation is U-shaped.
By adopting technique scheme, on arc extinguishing grid pieces 2, be equipped with the dual U-shaped breach, the second U-shaped breach be arranged on the first U-shaped breach symmetrical center line a side, the shape left-right symmetric of neighbouring arc extinguishing grid pieces 2 breach is staggered, reduced the resistance that electric arc enters arc extinguishing grid pieces 2, shorten the arcing time, the interaction force produced between the magnetic field produced by arc current and grid sheet, electric arc is attracted in the grid sheet, by the staggered gap structure of arc extinguishing grid pieces 2, more fast and effectively electric arc is divided into to a string short arc, until electric arc can not maintain burning, from horizontal blanking, effectively protected the interior equipment of circuit breaker not by scaling loss, greatly improved the breaking capacity of circuit breaker, the arc extinguishing grid pieces 2 on top is provided with run-on tab 7, further reduce the resistance that electric arc enters, make electric arc can enter more fast arc extinguishing grid pieces 2, improve arc extinguishing efficiency, can under the prerequisite that does not change the breaker body original structure, change by simple planform, solved the defect topic that electric arc can not effectively enter arc control device fast, striking is rapid, effectively improves its arc extinguishing ability.
Described arc extinguishing grid pieces 2 both sides are equipped with some protruding 5, and on flash barrier 1, respective protrusions 5 positions are provided with for projection 5 and support into the fixing location hole 6 of riveted.
By adopting technique scheme, arc extinguishing grid pieces 2 both sides are equipped with some protruding 5, on flash barrier 1, respective protrusions 5 positions are provided with for projection 5 and support into the fixing location hole 6 of riveted, arc extinguishing grid pieces 2 is connected more solid and reliable fixing and be with flash barrier 1 by projection 5 and is intervally arranged with the riveted of location hole 6, this is simple in structure, guarantees that simultaneously equipment connection is reliable and stable.
Described flash barrier 1 is made by insulation board.
By adopting technique scheme, flash barrier 1 is made by insulation board, guarantees the insulating reliability between arc extinguishing grid pieces 2, makes simultaneously arc extinguishing grid pieces 2 fixing more reliable with it.
Arc extinguishing grid pieces 2 and the run-on tab 7 on described top are wholely set.
By adopting technique scheme, arc extinguishing grid pieces 2 and the run-on tab 7 on top are wholely set, simple in structure, easy to process, run-on tab 7 is directly from projection 5 on arc extinguishing grid pieces 2, need on the arc extinguishing grid pieces 2 on top, not set up in addition run-on tab 7, guarantee simultaneously the connection reliability of run-on tab 7 and arc extinguishing grid pieces 2.
The above is only preferred implementation of the present utility model, and protection range of the present utility model also not only is confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. Arc Distinguishing Device for Circuit Breakers, comprise the flash barrier of both sides and be fixed between flash barrier and be the some arc extinguishing grid pieces that are intervally arranged, on described arc extinguishing grid pieces, be equipped with breach, it is characterized in that: described breach is integrated the double concave breach of setting, described double concave breach comprises the second concave indentation that is arranged on arc extinguishing grid pieces symmetrical the first concave indentation in the outside and is arranged on the first concave indentation inboard, described the second concave indentation be arranged on the first concave indentation symmetrical center line a side, the shape left-right symmetric of described neighbouring arc extinguishing grid pieces breach is staggered, the arc extinguishing grid pieces on described top is provided with run-on tab.
2. a kind of Arc Distinguishing Device for Circuit Breakers according to claim 1, it is characterized in that: described concave indentation is U-shaped.
3. a kind of Arc Distinguishing Device for Circuit Breakers according to claim 2, it is characterized in that: described arc extinguishing grid pieces both sides are equipped with some projections, and on described flash barrier, corresponding described raised position is provided with for projection and supports into the fixing location hole of riveted.
4. a kind of Arc Distinguishing Device for Circuit Breakers according to claim 3, it is characterized in that: described flash barrier is made by insulation board.
5. a kind of Arc Distinguishing Device for Circuit Breakers according to claim 1, it is characterized in that: arc extinguishing grid pieces and the run-on tab on described top are wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320366144XU CN203312220U (en) | 2013-06-22 | 2013-06-22 | Arc extinguishing device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320366144XU CN203312220U (en) | 2013-06-22 | 2013-06-22 | Arc extinguishing device for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203312220U true CN203312220U (en) | 2013-11-27 |
Family
ID=49618407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320366144XU Expired - Fee Related CN203312220U (en) | 2013-06-22 | 2013-06-22 | Arc extinguishing device for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203312220U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405706A (en) * | 2015-12-29 | 2016-03-16 | 上海电器陶瓷厂有限公司 | Arc extinguish chamber of disconnecting switch |
| CN105405707A (en) * | 2015-12-03 | 2016-03-16 | 上海天灵开关厂有限公司 | Gas-insulated load switch and arc extinguishing device thereof |
| CN106098459A (en) * | 2016-07-08 | 2016-11-09 | 浙江精开电气有限公司 | Chopper |
| CN107665797A (en) * | 2017-10-30 | 2018-02-06 | 现代重工(中国)电气有限公司 | A kind of direct current breaker of plastic casing |
| CN108447714A (en) * | 2018-04-04 | 2018-08-24 | 上海电科电器科技有限公司 | Arc-chutes |
-
2013
- 2013-06-22 CN CN201320366144XU patent/CN203312220U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405707A (en) * | 2015-12-03 | 2016-03-16 | 上海天灵开关厂有限公司 | Gas-insulated load switch and arc extinguishing device thereof |
| CN105405706A (en) * | 2015-12-29 | 2016-03-16 | 上海电器陶瓷厂有限公司 | Arc extinguish chamber of disconnecting switch |
| CN106098459A (en) * | 2016-07-08 | 2016-11-09 | 浙江精开电气有限公司 | Chopper |
| CN106098459B (en) * | 2016-07-08 | 2018-01-16 | 浙江精开电气有限公司 | Breaker |
| CN107665797A (en) * | 2017-10-30 | 2018-02-06 | 现代重工(中国)电气有限公司 | A kind of direct current breaker of plastic casing |
| CN108447714A (en) * | 2018-04-04 | 2018-08-24 | 上海电科电器科技有限公司 | Arc-chutes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140622 |
|
| EXPY | Termination of patent right or utility model |