CN204088122U - A kind of arc-control device - Google Patents
A kind of arc-control device Download PDFInfo
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- CN204088122U CN204088122U CN201420539511.6U CN201420539511U CN204088122U CN 204088122 U CN204088122 U CN 204088122U CN 201420539511 U CN201420539511 U CN 201420539511U CN 204088122 U CN204088122 U CN 204088122U
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- control device
- arc extinguishing
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Abstract
A kind of arc-control device, belongs to automatic transfer switching electric appliance technical field.Comprise arc control device, insulation grid is provided with in the arc control device cavity of arc control device, described insulation grid is positioned at the middle part of whole arc control device cavity, and by insulation grid, the arc control device cavity of arc control device is separated into left and right two arc extinguishing spaces, it is characterized in that: stack gradually in each arc extinguishing space and arrange many pieces long arc extinguishing grid pieces, and be provided with a short arc extinguishing grid pieces between adjacent two long arc extinguishing grid pieces.Arc control device can make the ability of arc control device subdividing the arc strengthen after the short arc extinguishing grid pieces of increase, more by electric arc cutting cooling, improve the arc quenching effect of arc control device; Striking grid is provided with metallic gasket, can fast electric arc is attracted in arc extinguishing grid pieces, further enhances arc extinguishing efficiency.
Description
Technical field
The utility model belongs to automatic transfer switching electric appliance technical field, is specifically related to a kind of arc-control device of automatic transfer switching electric appliance, is the improvement of the arc-control device structure to existing automatic transfer switching electric appliance.
Background technology
Automatic change-over is mainly used in emergency power supply system, plays the effect of uninterrupted power supply.Specifically, by it, road power supply of load circuit i.e. conventional power supply (civil power) is automatically switched to another road power supply (civil power or generating), to guarantee the continuous reliability service of important load.
Along with social progress and development in science and technology, people are day by day harsh to the requirement of power quality, thereupon more and more higher to the performance requirement of automatic change-over (english abbreviation is: ATSE).The existing arc-control device be applied in automatic transfer switching electric appliance, its structure disclosed by Fig. 1, Fig. 2, gives the contact apparatus of automatic change-over in figure, i.e. moving contact 3 and represent the fixed contact 4,5 of two-way power supply respectively; Give the arc-control device of automatic change-over, it is arranged in arc control device 1 by multi-disc arc extinguishing grid pieces 2, when the moving contact 3 of the contact apparatus of automatic change-over switches between the fixed contact 4,5 of two-way power supply, moving contact 3 is at fixed contact 4,5 rapid translating, and can electric arc be produced when moving contact 3 is scolded hold with fixed contact 4,5, electric arc is inhaled in arc control device 1, relies on arc extinguishing grid pieces 2 to cool and subdividing the arc, thus reaches the object of extinguish arcs.
Under the prior art due to structural limitations---automatic change-over volume is miniaturized, cause the limited space of arc control device, and when switch contact is when carrying out connecting or breaking capacity improves, the arc energy produced is larger, cause arc extinction time lengthening, cause the short circuit between conventional/stand-by power supply when rapid translating, therefore there is potential safety hazard.
In view of above-mentioned prior art, be necessary to be improved the structure of the arc-control device in existing automatic transfer switching electric appliance.For this reason, the applicant has done useful design, defines technical scheme described below, and has carried out analogue test in the laboratory of the applicant under taking secrecy provision, and result proves practicable.
Summary of the invention
Task of the present utility model is the arc-control device providing a kind of automatic transfer switching electric appliance, it is when breaking capacity improves, optimize the cloth postpone of arc extinguishing grid pieces, arc extinguishing efficiency can be strengthened, the electric arc produced between the dynamic and static contact of abundant guiding enters arc control device and effectively cuts blow-out, avoid the short circuit caused during rapid translating between conventional/stand-by power supply, eliminate safe hidden trouble.
Task of the present utility model has been come like this, a kind of arc-control device, comprise arc control device, insulation grid is provided with in the arc control device cavity of arc control device, described insulation grid is positioned at the middle part of whole arc control device cavity, and by insulation grid, the arc control device cavity of arc control device is separated into left and right two arc extinguishing spaces, it is characterized in that: stack gradually in each arc extinguishing space and arrange many pieces long arc extinguishing grid pieces, and be provided with a short arc extinguishing grid pieces between adjacent two long arc extinguishing grid pieces.
In a specific embodiment of the present utility model, the grid that described long arc extinguishing grid pieces lays respectively at the outermost end of arc control device cavity left and right sides is provided with metal derby.
In another specific embodiment of the present utility model, described metal derby is the metallic object of ferromagnetic substance.
Also have in a specific embodiment of the present utility model, the pin section of described long arc extinguishing grid pieces is coated with insulating part.
The utility model is due to after employing said structure, the beneficial effect had: first, according to contact movement locus, arc extinguishing grid pieces is rationally arranged, arrange arc control device to greatest extent, make use of arc control device space fully, specifically: short arc extinguishing grid pieces is the grid increased relative to traditional arc control device, the ability of arc control device subdividing the arc can be made to strengthen after the short arc extinguishing grid pieces of increase, more by electric arc cutting cooling, thus the arc quenching effect of arc control device can be improve; Secondly, striking grid is provided with metallic gasket, and this pad can attract electric arc to enter arc control device more easily, and the ferromagnetic substance of increase has stronger attraction for the electric arc near it, can fast electric arc be attracted in arc extinguishing grid pieces, further enhance arc extinguishing efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the contact apparatus of automatic change-over in prior art.
Fig. 2 is the overall structure schematic diagram of the arc-control device of automatic change-over in prior art.
Fig. 3 is the overall structure schematic diagram of arc-control device described in the utility model.
The structural representation that Fig. 4 is arc-control device described in the utility model after removing a wherein arc insulating cover.
Fig. 5 is the structural representation of striking grid described in the utility model.
Fig. 6 is the structural representation of short arc extinguishing grid pieces described in the utility model.
Fig. 7 is the structural representation of long arc extinguishing grid pieces described in the utility model.
In figure: 1. arc control device, 11. arc insulating covers, 12. arc insulating covers, 13. arc control device cavitys; 2. arc extinguishing grid pieces, 21 short arc extinguishing grid pieces, 22. long arc extinguishing grid pieces, 221. striking grid, 2211. metal derbies, 2212. axles, 222. pin sections, 2221. insulating parts; 3. moving contact; 4. fixed contact; 5. fixed contact; 6. insulate grid.
Embodiment
Applicant will describe in detail embodiment of the present utility model below by reference to the accompanying drawings; but applicant is not the restriction to technical scheme to the description of embodiment, any changing in the form rather than substance according to the utility model design all should be considered as protection range of the present utility model.
Refer to Fig. 3, Fig. 4, the utility model relates to a kind of arc-control device, it comprise two arc insulating covers 11,12, arc extinguishing grid pieces 2 and insulation grid 6.Identical and the setting that faces each other of the structure of two arc insulating covers 11,12, between the two by hinge, two arc insulating covers 11,12 form arc control device 1 after splicing, are provided with arc extinguishing grid pieces 2 and insulation grid 6 in the arc control device cavity 13 of arc control device 1.Described insulation grid 6 is positioned at the middle part of whole arc control device cavity 13, and by insulation grid 6, the arc control device cavity 13 of arc control device 1 is separated into left and right two parts arc extinguishing space.Described arc extinguishing grid pieces 2 comprises many pieces long arc extinguishing grid pieces 22 and many pieces short arc-chutes 21, stacks gradually and arrange many pieces long arc extinguishing grid pieces 22 in each arc extinguishing space, and is provided with a short arc extinguishing grid pieces 21 between adjacent two long arc extinguishing grid pieces 22.The two long arc extinguishing grid pieces 22 being positioned at the outermost end of arc control device cavity 13 left and right sides are provided with metal derby 2211, and these two pieces long arc extinguishing grid pieces 22 are striking grid 221.Described striking grid 221 is made up of metal derby 2211 and long arc extinguishing grid pieces 22, and metal derby 2211 is hinged on the top of long arc extinguishing grid pieces 22 short transverse by axle 2212.Be preferably, the metal derby 2211 being connected to long arc extinguishing grid pieces 22 top is the metallic object of ferromagnetic substance.In each arc extinguishing space, striking grid 221 is positioned at the outermost end of arc control device cavity 13, only adjacent striking grid 221 is short arc-chute 21, then be long arc extinguishing grid pieces 22, be followed successively by short arc extinguishing grid pieces 21 and long arc grid 22 alternately arrangement, between two namely often adjacent long arc extinguishing grid pieces 22, be provided with a short arc extinguishing grid pieces 21.
Refer to Fig. 5, Fig. 6, Fig. 7 and composition graphs 3, Fig. 4, short arc extinguishing grid pieces 21 described in the utility model is compared with described long arc extinguishing grid pieces 22, it is without stretching to outside pin section 222, described pin section 222 is coated with insulating part 2221, the material of this insulating part 2221 adopts thermoplastic material, the pin section 222 of long arc extinguishing grid pieces 22, owing to being coated with insulating part 2221, significantly improves the breakdown required magnitude of voltage applied of arc control device 1.
Claims (4)
1. an arc-control device, comprise arc control device (1), insulation grid (6) is provided with in the arc control device cavity (13) of arc control device (1), described insulation grid (6) is positioned at the middle part of whole arc control device cavity (13), and by insulation grid (6), the arc control device cavity (13) of arc control device (1) is separated into a left side, right two arc extinguishing spaces, it is characterized in that: stack gradually in each arc extinguishing space and arrange many pieces long arc extinguishing grid pieces (22), and be provided with a short arc extinguishing grid pieces (21) between adjacent two long arc extinguishing grid pieces (22).
2. a kind of arc-control device according to claim 1, is characterized in that: the grid that described long arc extinguishing grid pieces (22) lays respectively at the outermost end of arc control device cavity (13) left and right sides is provided with metal derby (2211).
3. a kind of arc-control device according to claim 2, is characterized in that: the metallic object that described metal derby (2211) is ferromagnetic substance.
4. a kind of arc-control device according to claim 1, is characterized in that: the pin section (222) of described long arc extinguishing grid pieces (22) is coated with insulating part (2221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539511.6U CN204088122U (en) | 2014-09-19 | 2014-09-19 | A kind of arc-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420539511.6U CN204088122U (en) | 2014-09-19 | 2014-09-19 | A kind of arc-control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204088122U true CN204088122U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420539511.6U Active CN204088122U (en) | 2014-09-19 | 2014-09-19 | A kind of arc-control device |
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| CN (1) | CN204088122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205499A1 (en) * | 2017-05-10 | 2018-11-15 | 平高集团有限公司 | Arc extinguishing device and circuit breaker using the arc extinguishing device |
-
2014
- 2014-09-19 CN CN201420539511.6U patent/CN204088122U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205499A1 (en) * | 2017-05-10 | 2018-11-15 | 平高集团有限公司 | Arc extinguishing device and circuit breaker using the arc extinguishing device |
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| GR01 | Patent grant |