CN101354977A - Arc-extinguishing device for load switch - Google Patents
Arc-extinguishing device for load switch Download PDFInfo
- Publication number
- CN101354977A CN101354977A CNA2008100213040A CN200810021304A CN101354977A CN 101354977 A CN101354977 A CN 101354977A CN A2008100213040 A CNA2008100213040 A CN A2008100213040A CN 200810021304 A CN200810021304 A CN 200810021304A CN 101354977 A CN101354977 A CN 101354977A
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- arc
- arc control
- control device
- load switch
- extinguishing grid
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to an arc control device in a load switch, which is particularly applicable to SF6 gas-filled switching equipment, belonging to the technical field of intermediate voltage electric equipment. The arc control device is characterized in that an arc control grid is improved to have a frame structure with an open front and an back, is benefit for the insert connection with a flat arc control grid sheet\; the arc control grid sheet is provided with grooves and holes in pattern which are asymmetric, so that an electric arc can be stretched and can be cut into a plurality of short electric arcs to effectively prevent arc restrike after current passes zero and improve the performance of arc control. The arc control grid sheet is made of a silicon-steel plate, electric pure iron and other magnetic conductive materials, and the excellent magnetic conductive performance ensures that the electric arc can be automatically introduced into the arc control device under the action of electromagnetic field force, thereby improving the effect of arc control. Because the arc control grid sheet has a sheet shaped structure without a special mould, the arc control grid sheet becomes simply through processing by laser cutting equipment or numerical punching equipment. The arc control device has the advantages of simple structure, good arc control performance and strong practicality, and can replace the prior arc control device in the prior load switch.
Description
Technical field
The present invention relates to the arc-control device in a kind of on-load switch, be particularly useful for SF6 gas-filled switching tube equipment, piezoelectricity gas equipment technical field in belonging to.
Background technology
SF6 gas-filled switching tube equipment is little owing to volume, reliability is high, full-insulated full-sealed, fail safe is good etc., and advantage is developed rapidly.Its core component is an on-load switch, is provided with arc-control device in the on-load switch.Arc-control device in the SF6 on-load switch generally is made up of arc-chute frame and the multi-disc arc extinguishing grid pieces that is installed on the arc-chute frame at present.The arc-chute frame seemingly is scopiform, inserts arc extinguishing grid pieces respectively in some slots of brush arm one side, and mainly there is following shortcoming in the arc-control device of this structure:
1, arc extinguishing grid pieces design has the projection that matches with the arc-chute frame, needs particular manufacturing craft processing, and the manufacturing procedure complexity, to make efficient low.
2, the assembling of arc extinguishing grid pieces and arc-chute frame needs special tooling, and efficiency of assembling is low.
3, arc extinguishing grid pieces front edge profile is the U-shaped of symmetry, and arc quenching effect is undesirable
Summary of the invention
The purpose of this invention is to provide the arc-control device in a kind of on-load switch, overcome existing arc-control device because of processing, efficiency of assembling that its structural factor caused arc quenching effect low and that cause because of the front edge contour shape undesirable, realize that processing is simple, easy to assembly, have more excellent arc quenching effect, can effectively improve the transfer current of switch-fuse combination.
The objective of the invention is to be achieved through the following technical solutions, arc-control device in a kind of on-load switch, form by arc extinguishing grid pieces and arc-chute frame, it is characterized in that the arc-chute frame is the frame structure that the front and back is all opened wide, correspondence is provided with some slots on the medial surface of biside plate, arc extinguishing grid pieces is disk construction, have front edge, back edge, two lateral edges, its front edge has the two-stage U-lag profile of overall symmetry, and the front edge middle part has asymmetric groove; The both sides of the edge symmetry, the middle part of both sides of the edge cooperates with the slot of arc-chute frame.
The arc-chute frame is made of top board, base plate, biside plate and two connecting levers, and cooperating pegs graft is connected as a single entity by being full of with top board, base plate respectively at the two ends of biside plate, or whole mould annotates and be one, and the both sides, center of base plate connect respectively and side plate connecting lever in the same way.
The arc extinguishing grid pieces both sides of the edge are three grades of stairsteppings, and a level width of front end increases successively to the width of the rear end third level, and partial width cooperates with width between arc-chute frame biside plate.
Be provided with and the asymmetric round in arc extinguishing grid pieces center respectively on the platen surface at relative two, the three grades of edges of arc extinguishing grid pieces.
Arc extinguishing grid pieces adopts magnetic conductive material.
The present invention is the improvement to arc-control device structure in the existing on-load switch, the arc-chute frame is improved to the frame structure that the front and back is all opened wide, help the grafting of plate shaped arc extinguishing grid pieces, have asymmetric groove and round on the arc extinguishing grid pieces then can produce elongation preferably, electric arc is divided into many short electric arcs electric arc, can effectively prevent the arc reignition behind the current over-zero, improve arc extinction performance; Arc extinguishing grid pieces adopts magnetic conductive materials such as silicon steel sheet, electrical pure iron to make, and its good magnetic property makes electric arc import arc-control device automatically under the effect of electromagnetic force, has improved arc quenching effect.Because arc extinguishing grid pieces is a laminated structure, need not particular manufacturing craft, becomes very simple through laser cutting device or digital stamping apparatus processing; The present invention is simple in structure, and arc extinction performance is good, has very strong practicality, arc-control device in the alternative existing on-load switch.
Description of drawings
Fig. 1 is a perspective view of the present invention;
Fig. 2 is arc-chute frame perspective view among the present invention;
Fig. 3 is arc extinguishing grid pieces structural representation among the present invention;
Among the figure, 1 arc extinguishing grid pieces, 2 arc-chute framves, 3 side plates, 4 base plates, 5 connecting levers, 6 top boards, 7 slots, 8 rounds, 9 one-level edges, 10 2 edges, 11 3 grades of edges, 12 grooves, 13 front edges, 14 back edges, 15 one-level U-lags, 16 secondary U-lags.
Embodiment
Further specify the present invention in conjunction with the accompanying drawings and embodiments, as shown in Figure 1, arc extinguishing grid pieces 1 of the present invention and arc-chute frame 2 constitute.
As shown in Figure 2, the arc-chute frame 2 among the present invention constitutes frame structure by top board 6, base plate 4, two side plates 3 and two connecting levers 5, and the front and back is all opened wide, and all has some slots 7 on the medial surface of two side plates 3.The two ends of biside plate 3 are connected as a single entity with top board 6, base plate 4 respectively, and cooperating pegs graft is connected as a single entity by being full of, or whole mould annotates and be one, and the both sides, center of base plate 4 connect respectively and side plate 3 connecting lever 5 in the same way.
As shown in Figure 3, arc extinguishing grid pieces 1 among the present invention is plate shaped laminated structure, have front edge 13, back edge 14, two lateral edges and rounds 8, its front edge has the two- stage U-lag profile 15,16 of overall symmetry, and front edge 13 middle parts have asymmetric groove 12; The arc extinguishing grid pieces both sides of the edge are three grades of stairsteppings, and a level width of front end increases successively to the width of the rear end third level, and partial width cooperates with the width of 3 of arc-chute frame biside plates.One-level edge 9 slightly for a short time being beneficial to are assembled, and three grades of edges 11 are big slightly, as inserting the location; Have double hole 8 on the arc extinguishing grid pieces 1, and each round 8 is asymmetric with the center.
Some arc extinguishing grid pieces 1 insert the slot 7 of arc-chute frame 2 from the back of arc-chute frame 2.When arc extinguishing grid pieces 1 inserts, answer positive and negative staggered arrangement for adjacent two,, then can produce elongation preferably, electric arc is divided into many short electric arcs electric arc because the groove 12 and the round 8 of arc extinguishing grid pieces 1 are asymmetric, can effectively prevent the arc reignition behind the current over-zero, improve arc extinction performance.
Arc extinguishing grid pieces 1 adopts magnetic conductive material to make, and as silicon steel sheet, electrical pure iron etc., utilizes its magnetic property, makes electric arc import arc-control device automatically under the effect of electromagnetic force, has improved arc quenching effect.
Arc extinguishing grid pieces 1 need not particular manufacturing craft owing to be laminated structure, becomes very simple through laser cutting device or digital stamping apparatus processing.
Arc extinguishing grid pieces 1 adopts inserting mode to pack in the slot of arc-chute frame 2, and is easy to assembly, quick.
Claims (5)
1, the arc-control device in a kind of on-load switch is made up of arc extinguishing grid pieces and arc-chute frame, it is characterized in that, the arc-chute frame is the frame structure that the front and back is all opened wide, in the framework on the medial surface of biside plate correspondence some slots are set; Arc extinguishing grid pieces is disk construction, has front edge, back edge, two lateral edges, and its front edge has the two-stage U-lag profile of overall symmetry, and the front edge middle part has asymmetric groove; The both sides of the edge symmetry, the middle part of both sides of the edge cooperates with the slot of arc-chute frame.
2, the arc-control device in the on-load switch according to claim 1, it is characterized in that, the arc-chute frame is made of top board, base plate, biside plate and two connecting levers, and cooperating pegs graft is connected as a single entity by being full of with top board, base plate respectively at the two ends of biside plate, or whole mould notes are one.
3, the arc-control device in the on-load switch according to claim 1, it is characterized in that, the arc extinguishing grid pieces both sides of the edge are three grades of stairsteppings, and a level width of front end increases successively to the width of the rear end third level, and partial width cooperates with width between arc-chute frame biside plate.
4, the arc-control device in the on-load switch according to claim 1 is characterized in that, is provided with and the asymmetric round in arc extinguishing grid pieces center respectively on the platen surface at relative two, the three grades of edges of arc extinguishing grid pieces.
5, the arc-control device in the on-load switch according to claim 1 is characterized in that, arc extinguishing grid pieces adopts magnetic conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100213040A CN101354977A (en) | 2008-07-31 | 2008-07-31 | Arc-extinguishing device for load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100213040A CN101354977A (en) | 2008-07-31 | 2008-07-31 | Arc-extinguishing device for load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101354977A true CN101354977A (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100213040A Pending CN101354977A (en) | 2008-07-31 | 2008-07-31 | Arc-extinguishing device for load switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN101354977A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972917A (en) * | 2010-09-29 | 2011-02-16 | 常州市德春电器有限公司 | Processing technique of high voltage switch external turnplate |
| CN102225446A (en) * | 2011-04-14 | 2011-10-26 | 蚌埠精禹精密机电科技有限公司 | Punching and riveting combined multistation progressive die of arc extinguish chamber |
| CN102891528A (en) * | 2011-07-19 | 2013-01-23 | 飞世龙机电有限公司 | Automatic conversion switch |
| CN103681084A (en) * | 2013-12-19 | 2014-03-26 | 安徽驰纬电气有限公司 | Arc extinguishing chamber for inflating cabinet |
| CN108597941A (en) * | 2018-07-18 | 2018-09-28 | 环宇集团浙江高科股份有限公司 | A kind of breaker of plastic casing static contact arc eliminating module |
-
2008
- 2008-07-31 CN CNA2008100213040A patent/CN101354977A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972917A (en) * | 2010-09-29 | 2011-02-16 | 常州市德春电器有限公司 | Processing technique of high voltage switch external turnplate |
| CN102225446A (en) * | 2011-04-14 | 2011-10-26 | 蚌埠精禹精密机电科技有限公司 | Punching and riveting combined multistation progressive die of arc extinguish chamber |
| CN102891528A (en) * | 2011-07-19 | 2013-01-23 | 飞世龙机电有限公司 | Automatic conversion switch |
| CN103681084A (en) * | 2013-12-19 | 2014-03-26 | 安徽驰纬电气有限公司 | Arc extinguishing chamber for inflating cabinet |
| CN108597941A (en) * | 2018-07-18 | 2018-09-28 | 环宇集团浙江高科股份有限公司 | A kind of breaker of plastic casing static contact arc eliminating module |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090128 |