CN203596311U - Arc-extinguishing structure of isolation switch - Google Patents
Arc-extinguishing structure of isolation switch Download PDFInfo
- Publication number
- CN203596311U CN203596311U CN201320810025.9U CN201320810025U CN203596311U CN 203596311 U CN203596311 U CN 203596311U CN 201320810025 U CN201320810025 U CN 201320810025U CN 203596311 U CN203596311 U CN 203596311U
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- CN
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- Prior art keywords
- arc
- arc extinguishing
- extinguishing grid
- grid pieces
- contact
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- 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.)
- Expired - Lifetime
Links
- 238000002955 isolation Methods 0.000 title abstract 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- 241000243321 Cnidaria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
An arc-extinguishing structure of an isolation switch mainly aims to solve the problems that the load current breaking capacity of an existing isolation switch is not ideal, and especially when the existing isolation switch is applied to a direct current, the existing isolation switch fails to break the load current because the direct current has no zero crossing points. The arc-extinguishing structure of the isolation switch is characterized in that arc-extinguishing grid sheets are arranged on one side, close to moving contacts, of connecting parts of fixed contacts, and the arc-extinguishing grid sheets are distributed on two ends of the moving contacts. The arc-extinguishing structure of the isolation switch has the advantages that the arc-extinguishing grid sheets are distributed on two sides of load-breaking arc area of the moving contacts and the fixed contacts, and when the isolation switch is in the load-breaking process, electric arcs are generated, and the electric arcs are laterally blown to the arc-extinguishing grid sheets quickly under the effect of the electromagnetic force, so that the arc-extinguishing effect is effectively improved, and the breaking capacity is improved.
Description
Technical field
The utility model relates to a kind of isolating switch, refers in particular to a kind of arc extinguishing structure of isolating switch.
Background technology
Isolating switch is in low-tension switch electric appliance, to use more a kind of electrical equipment, and being divided into can the disjunction of bringing onto load electric current and two kinds of use classes of bringing onto load electric current disjunction not, and what this technology related to is isolating switch that can the disjunction of bringing onto load electric current.In the time of switch band load disjunction, can between dynamic/static contact, produce electric arc, electric arc brings a large amount of heats and produces air ionization, if electric arc between dynamic/static contact overstand probably scaling loss contact even cause that arc short-circuit burns switch, this just needs us to do as early as possible blow-out processing.The common way of isolating switch is, below the contact zone of moving contact and fixed contact, arc extinguishing grid pieces is set at present, cause distant from contact district of arc extinguishing grid pieces, the electric arc producing when switch deciliter cannot enter in arc extinguishing coral sheet mostly, cannot realize quick blow-out, therefore bringing onto load electric current breaking capacity is very undesirable.
Utility model content
In order to overcome deficiency and the defect in background technology, the utility model provides a kind of arc extinguishing structure of isolating switch, mainly solves the undesirable problem of existing isolating switch bringing onto load electric current breaking capacity.
The technical solution of the utility model is: a kind of arc extinguishing structure of isolating switch, comprise pedestal, fixed contact, moving contact, arc extinguishing grid pieces, and described fixed contact includes wire connecting portion, contact site and connects the connecting portion of wire connecting portion and contact site; Described fixed contact is fixed on respectively the both sides of pedestal by connecting portion, its contact site is arranged symmetrically with inwardly; Described moving contact is corresponding with the contact site of fixed contact; Described arc extinguishing grid pieces is arranged on the side of fixed contact connecting portion by moving contact, and is distributed in the two ends of moving contact.
Described arc extinguishing grid pieces be shaped as " L " shape.
Arc extinguishing grid pieces crosspiece is equipped with one section of arc groove with perpendicular section inner side.
Arc extinguishing grid pieces is divided into the first arc extinguishing grid pieces and the second arc extinguishing grid pieces, and on described the first arc extinguishing grid pieces, on the position of arc groove and the second arc extinguishing grid pieces, the position of arc groove is symmetrical, and the first arc extinguishing grid pieces and the second arc extinguishing grid pieces interval are arranged.
The beneficial effects of the utility model: owing to taking such scheme, a kind of arc extinguishing structure of isolating switch, its arc extinguishing grid pieces is arranged on moving, the arc zone both sides of fixed contact bringing onto load disjunction, in the time of the disjunction of isolating switch bringing onto load, produce electric arc, be subject to electromagnetic force, electric arc is blowed to arc extinguishing grid pieces by side direction rapidly, effectively improve arc blowout effect, thereby improve its breaking capacity, the raising of arc-rupturing capacity and breaking capacity simultaneously, further protect quiet, the contact-making surface of moving contact is not ablated, the number of times life-span of isolating switch bringing onto load electric current disjunction is improved greatly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is static contact structure schematic diagram.
Fig. 3 is arc chute chip architecture schematic diagram.
In figure: 1-pedestal, 2-fixed contact, 21-wire connecting portion, 22-contact site, 23-connecting portion, 3-moving contact, 4-arc extinguishing grid pieces, 4a-the first arc extinguishing grid pieces, 4b-the second arc extinguishing grid pieces, 41-arc groove.
Embodiment
For accompanying drawing, embodiment of the present utility model is described further below:
Shown in Fig. 1-3, a kind of arc extinguishing structure of isolating switch, comprises pedestal 1, fixed contact 2, moving contact 3, arc extinguishing grid pieces 4, and described fixed contact 2 includes wire connecting portion 21, contact site 22 and connects the connecting portion 23 of wire connecting portion 21 and contact site 22, described fixed contact 2 is separately fixed at the both sides of pedestal 1 by connecting portion 23, its contact site 22 is arranged symmetrically with inwardly, described moving contact 3 is corresponding with the contact site 22 of fixed contact 2, described arc extinguishing grid pieces 4 is arranged on the side of fixed contact 2 connecting portions 23 by moving contact 3, and be distributed in the two ends of moving contact 3, arc extinguishing grid pieces 4 is just in time positioned at two side positions of the arc zone of fixed contact 2 and moving contact 3 bringing onto load disjunctions, when the disjunction of isolating switch bringing onto load, produce electric arc, electric arc is subject to electromagnetic force, side direction blows to arc extinguishing grid pieces, electric arc is divided into segment mobile along arc extinguishing grid pieces surface, electric arc is lowered the temperature by iron arc extinguishing grid pieces, conductive ion dissipates rapidly, thereby electric arc is extinguished rapidly, improve its breaking capacity, simultaneously because moving, electric arc between fixed contact is blown off moving, fixed contact conductive contact surfaces, thereby effectively protect moving, fixed contact contact-making surface is not by arc erosion, the number of times life-span of isolating switch bringing onto load electric current disjunction is improved greatly.
Described arc extinguishing grid pieces 4 be shaped as " L " shape, wherein a part is positioned at the both sides of moving contact 3 and the arc zone of fixed contact 2, a part is positioned at the downside of arc zone, makes arc extinguishing grid pieces 4 coverage rates wider, arc quenching effect will be more abundant.
As shown in Figures 1 and 3, arc extinguishing grid pieces is divided into two kinds of the first arc extinguishing grid pieces 4a and the second arc extinguishing grid pieces 4b, their crosspiece is equipped with one section of arc groove 41 with perpendicular section inner side, the position of the position of the upper arc groove 41 of described the first arc extinguishing grid pieces 4a and the upper arc groove 41 of the second arc extinguishing grid pieces 4b is symmetrical, the first arc extinguishing grid pieces 4a and the second arc extinguishing grid pieces 4b interval are arranged, this structural configuration can be elongated electric arc a bit, makes arc quenching effect better.
The utility model is applicable to the occasion of interchange or DC application, particularly at DC application field, important in inhibiting.In DC application direction, applicable to the application of fixed current direction or the on-fixed sense of current, as accumulator load.
Embodiment should not be considered as the restriction to utility model, but any improvement of doing based on spirit of the present utility model, all should be within protection range of the present utility model.
Claims (4)
1. the arc extinguishing structure of an isolating switch, comprise pedestal (1), fixed contact (2), moving contact (3), arc extinguishing grid pieces (4), it is characterized in that: described fixed contact (2) includes wire connecting portion (21), contact site (22) and connects the connecting portion (23) of wire connecting portion (21) and contact site (22); Described fixed contact (2) is separately fixed at the both sides of pedestal (1) by connecting portion (23), its contact site (22) is arranged symmetrically with inwardly; Described moving contact (3) is corresponding with the contact site (22) of fixed contact (2); Described arc extinguishing grid pieces (4) is arranged on the side of fixed contact connecting portion (23) by moving contact (3), and is distributed in the two ends of moving contact (3).
2. the arc extinguishing structure of isolating switch according to claim 1, is characterized in that: the structure of described arc extinguishing grid pieces (4) is " L " shape structure.
3. the arc extinguishing structure of isolating switch according to claim 2, is characterized in that: arc extinguishing grid pieces (4) crosspiece is equipped with one section of arc groove (41) with perpendicular section inner side.
4. the arc extinguishing structure of isolating switch according to claim 3, it is characterized in that: arc extinguishing grid pieces (4) is divided into the first arc extinguishing grid pieces (4a) and the second arc extinguishing grid pieces (4b), the position of the position of the upper arc groove (41) of described the first arc extinguishing grid pieces (4a) and the upper arc groove (41) of the second arc extinguishing grid pieces (4b) is symmetrical, and the first arc extinguishing grid pieces (4a) is arranged with the second arc extinguishing grid pieces (4b) interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320810025.9U CN203596311U (en) | 2013-12-11 | 2013-12-11 | Arc-extinguishing structure of isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320810025.9U CN203596311U (en) | 2013-12-11 | 2013-12-11 | Arc-extinguishing structure of isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203596311U true CN203596311U (en) | 2014-05-14 |
Family
ID=50677175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320810025.9U Expired - Lifetime CN203596311U (en) | 2013-12-11 | 2013-12-11 | Arc-extinguishing structure of isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203596311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585193A (en) * | 2018-12-14 | 2019-04-05 | 首瑞（天津）电气设备有限公司 | Switching device |
-
2013
- 2013-12-11 CN CN201320810025.9U patent/CN203596311U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585193A (en) * | 2018-12-14 | 2019-04-05 | 首瑞（天津）电气设备有限公司 | Switching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 325000 Wenzhou, Lucheng light industrial park, No. Jiang Road, No. 101 Patentee after: HUAWU ELECTRICITY CO.,LTD. Patentee after: SHANGHAI HUATONG ELECTRICITY Co.,Ltd. Address before: 325019, A1-03 light industrial park, Wenzhou, Zhejiang, Lucheng Patentee before: ZHEJIANG ELECTRIC APPLIANCE AND SWITCHGEAR Co.,Ltd. Patentee before: SHANGHAI HUATONG ELECTRICITY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |