CN202258892U - Zero-flashover arc extinguishing device - Google Patents
Zero-flashover arc extinguishing device Download PDFInfo
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- CN202258892U CN202258892U CN2011204172723U CN201120417272U CN202258892U CN 202258892 U CN202258892 U CN 202258892U CN 2011204172723 U CN2011204172723 U CN 2011204172723U CN 201120417272 U CN201120417272 U CN 201120417272U CN 202258892 U CN202258892 U CN 202258892U
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Abstract
The utility model discloses a zero-flashover arc extinguishing device comprising an arc isolating cover, arc striking pieces, two arc isolating walls, grid pieces and at least one set of arc extinguishing pieces. Each set of the arc extinguishing pieces comprises an insulating frame, an arc extinguishing plate and a de-ionization mesh. The tops of the two arc extinguishing walls are connected with each other by the arc isolating cover, at least two pairs of lengthways inserting grooves are machined at the inner walls of the two arc isolating walls, the at least two grid pieces are sequentially inserted and arranged into the inserting grooves positively and oppositely, and the arc striking pieces are inserted and arranged into the inserting grooves at the end parts of the arc isolating walls. The at least one set of the arc-extinguishing pieces is arranged between the tops of the grid pieces and the arc isolating cover. In order to enlarge the electric arc cooling area by the grid pieces, the tops of the grid pieces tightly lean against the insulating frame, the bottoms of the grid pieces are arranged along with the inclined surfaces of the arc striking pieces in a stepped manner within the limit of not contacting with the arc striking pieces, and the length of the grid pieces can range 2/3-1/2 of the height of an arc extinguishing room. Compared with the conventional arc extinguishing room, the arc extinguishing device can realize small volume and high disjunction, and can achieve the zero-flashover effect.
Description
Technical field
The utility model relates to a kind of arc-control device, is specifically related to a kind of zero arcing arc-control device, belongs to low voltage equipment.
Background technology
In the course of action of fuser belt load disjunction, the voltage between the contact causes the air dielectric discharge, forms electric arc.Therefore in switches such as circuit breaker, contactor, arc control device all are set usually come extinguish arcs, thus the safe operation of assurance electric equipment.
Existing arc control device all are at set inside one row arc extinguishing grid pieces, and electric arc is cut off and arc extinguishing, reserve a block space between grid sheet and the arc cover and are used to stop the electric arc arc control device that fly out.But the subject matter that this arc control device exist is: volume is bigger than normal, is difficult to realize small size, high breaking and zero arcing.
Summary of the invention
In view of this, the utility model provides a kind of zero arcing arc-control device.This arc-control device comprises arc cover, striking sheet, two arc separating walls, grid sheet and a group or more arc quenching plates.Every group of arc quenching plate comprises insulation frame, arc extinguishing board and removes free net.
Its annexation is: the top of two arc separating walls and arc cover removably connect; Be processed with two pairs or more longitudinal socket at the inwall of two arc separating walls, two or more grid sheets one positive one instead are inserted in the slot successively.The striking sheet is fixed on the end of two arc separating walls, and the striking sheet is the laminated structure of bending, one side vertically, another side is to the arc control device inner inclination, and forms the obtuse angle with vertical plane.A group or more arc quenching plate is installed between grid sheet top and the arc cover.
Said arc cover is a rectangle structure, is processed by insulating material, and its thickness confirms according to the requirement of strength of arc control device, and the gas that produces with not by disjunction the time is washed open or damaged and exceeds, generally between 10mm-20mm.For the gas in the arc control device can better be circulated, increase radiating effect, be processed with one with upper air-vent along arc cover transversal line.Under the prerequisite of proof strength, the longitudinal hole that one or more and steam vent of processing connects in the side of arc cover.In practice, consider control to discharge directions, the shape of steam vent can be designed to skewed slot, V-shape groove or X type groove.Tilt angle ranges between the said skewed slot and the longitudinal axis is 100 °-170 °, and a side of said V-shape groove or X type groove is vertical, opposite side and vertical axis tilt, and tilt angle ranges is 100 °-170 °.Under the prerequisite that guarantees arc-extinguish chamber intensity, the area of steam vent accounts for more than 30% of whole arc-extinguish chamber area.
The grid sheet is rectangular laminated structure, and its two side ends are respectively arranged with recessed limited step, and limited step is stuck in the slot.In order to increase the film-cooled heat of grid sheet to electric arc, the length of grid sheet should be long as far as possible, and its top is near the insulation frame, and bottom stepped arrangement along the inclined-plane of striking sheet is exceeded not contact with the striking sheet; The length range of grid sheet is the 1/2-2/3 of arc control device height.
The centre position of grid sheet lower limb is processed with asymmetric groove, and the top of each grid sheet upper groove is at sustained height, and the length of groove is the 1/4-1/2 with striking sheet adjacent gate leaf length.Said groove is made up of two sections breach, and first section breach is the rectangle that lateral symmetry is arranged, at the top of first section breach second section breach is set, and second section breach is the trapezoidal of vertical asymmetric layout, and its afterbody is semicircle.Wherein the length of first section breach is the 1/2-7/10 of groove length.Between second section breach and the first section breach by the circular arc smooth transition, between first section breach and the grid sheet base by the circular arc smooth transition.The grid sheet is the wrong installation of a positive reciprocal cross in slot, and promptly the bossing of bottom portion of groove and sunk part stagger each other.Adopt the arc control device of this structure can effectively elongate electric arc.
The insulation frame is a rectangle structure with holes, is placed on grid sheet top, and its effect is the short circuit that prevents between the grid sheet.
Place the rectangle arc extinguishing board on the insulation frame, better extinguish arcs when gaining in strength, arc extinguishing board is a ferromagnetic material.The increased number of stomata that distributes on the arc extinguishing board, the size of pore with arrange and the grid sheet adapts at interval.The thickness of arc extinguishing board is between the 1mm-5mm, also can arc extinguishing board and insulation frame be processed as one.
Go free net to be placed on the arc extinguishing board, its material is ferromagnetic net sheet, can be one or more layers.Go free net to be changed by 5-20 layer wire netting, still have ventilative property after changing, preferred order number is 10 orders-25 orders.Go free net also can form by the arc extinguishing net sheet of different meshes.
Beneficial effect
The stepped arrangement in grid sheet array bottom, and positive and negative intersection installs, help electric arc elongation, cool off and extinguish, improve breaking capacity.Because the arc extinguishing board and the net that goes to dissociate are ferromagnetic material, when electric arc occurs, can produce very strong induced field simultaneously, electric arc is pulled out arc extinguishing grid pieces; Simultaneously the power that produces of induced field can be with possibly being withdrawn in the arc control device from the electric arc of arc spraying mouth ejection, thereby prevent that electric arc from flying out through the arc spraying mouth on the arc-extinguish chamber.Being used of arc quenching plate and grid sheet makes circuit breaker reach the effect of zero arcing, effectively realized small size, high breaking and zero arcing of circuit breaker.
Description of drawings
Fig. 1 is the cutaway view of the utility model;
The structural representation of Fig. 2 arc cover;
Fig. 3 is the positive and negative structural representation that is staggeredly placed of grid sheet;
Fig. 4 is the structural representation of arc extinguishing board;
Fig. 5 is the structural representation of insulation frame.
Wherein: 1-arc cover, 2-grid sheet, 3-striking sheet, 4-arc extinguishing board, 5-remove free net, the 6-frame that insulate, first section breach of 7-, second section breach of 8-, 9-limited step, 10-steam vent.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, the utility model is described in detail.
The utility model provides a kind of zero arcing arc-control device, and is as shown in Figure 1.This arc-control device comprises arc cover 1, striking sheet 3, two arc separating walls, grid sheet 2, insulation frame 6, arc extinguishing boards 4 and removes free net 5.
Its annexation is: the convexity at two arc separating wall tops matches with the groove of arc cover 1 bottom surface, realize arc cover 1 location, and through screw that two arc separating walls and arc cover 1 are affixed.The inwall of two arc separating walls is processed with 16 pairs of longitudinal sockets; 15 grid sheets 2 one positive instead are inserted in the slot successively; Striking sheet 3 is the laminated structure of bending, and one side vertically, and another side tilts to the lower left; And forming the obtuse angle with vertical plane, striking sheet 3 is inserted in the slot of two arc separating wall low order ends.Insulation frame 6, arc extinguishing board 4 is housed in the space between grid sheet 2 tops and the arc cover 1 from top to bottom successively and removes free net 5.
The structure of arc cover 1 is as shown in Figure 2, in order to increase the gas-permeable channels of arc control device, controls the direction of air-flow in the arc cover 1 simultaneously, is processed with the steam vent 10 of eight inclinations along arc cover 1 transversal line, and the inclination angle between the steam vent 10 and the longitudinal axis is about 125 °.
Insulation frame 6, arc extinguishing board 4 is housed in the space between grid sheet 2 tops and the arc cover 1 from top to bottom successively and removes free net 5.
The structure of insulation frame 6 is as shown in Figure 5.The effect of insulation frame 6 is the short circuits that prevent between the grid sheet 2.Place arc extinguishing board 4 on the insulation frame 6, when gaining in strength, can better cool off electric arc, arc extinguishing board 4 is an iron plate.As shown in Figure 4, arc extinguishing board 4 is along the transversal line perforate, in order not influence gas permeability, the size in hole and arrange with grid sheet 2 between the interval coordinate mutually.
Go free net 5 to be placed on the arc extinguishing board 4, its material is ferromagnetic net sheet.For technology is simple, the mode of going to free Netcom to cross folding individual arc extinguishing net sheet of multilayer forms.
In sum, more than being merely the preferred embodiment of the utility model, is not the protection range that is used to limit the utility model.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (10)
1. one kind zero arcing arc-control device comprises arc cover (1), striking sheet (3), two arc separating walls and grid sheet (2); The top of two arc separating walls and arc cover (1) removably connect; Striking sheet (3) is fixed in the end of two arc separating walls; It is characterized in that, also comprise a group or more arc quenching plate, said arc quenching plate is installed between grid sheet (2) top and the arc cover (1), and every group of arc quenching plate is followed successively by insulation frame (6), arc extinguishing board (4) from top to bottom and removes free net (5);
Be processed with two pairs or more longitudinal socket at the inwall of two arc separating walls; Two or more grid sheets (2) one positive one instead are inserted in the slot successively; Length for grid sheet (2) of extending as far as possible; The top of grid sheet contacts with insulation frame (6), exceeds not contact with striking sheet (3) along the stepped arrangement in inclined-plane of striking sheet (3) in the bottom; The length range of grid sheet is the 1/2-2/3 of arc control device height;
Said arc cover (1) is a rectangle template structure, is processed with more than one steam vent (10) along arc cover (1) transversal line, is satisfying under the prerequisite of requirement of strength the longitudinal hole that one or more and steam vent (10) of processing connects in its side;
Said grid sheet (2) is a rectangle sheet structure, and the centre position of its lower limb is processed with asymmetric groove.
2. a kind of zero arcing arc-control device as claimed in claim 1 is characterized in that, said steam vent (10) be shaped as skewed slot, V-shape groove or X type groove; The tilt angle ranges of skewed slot is 100 °-170 °, and a side of V-shape groove or X type groove is vertical, opposite side and vertical axis tilt, and the scope at inclination angle is 100 °-170 °.
3. a kind of zero arcing arc-control device as claimed in claim 1; It is characterized in that; The groove of said grid sheet (2) lower limb is made up of two sections breach, and the rectangle that first section breach (7) arranged for lateral symmetry is provided with second section breach (8) at the top of first section breach (7); Second section breach (8) is the trapezoidal of vertical asymmetric layout, and its afterbody is semicircle; Between second section breach (8) and the first section breach (7) by the circular arc smooth transition, between first section breach (7) and grid sheet (2) base by the circular arc smooth transition.
4. a kind of zero arcing arc-control device as claimed in claim 3; It is characterized in that; The top of said each grid sheet (2) upper groove is at sustained height, and the length of groove is and the 1/4-1/2 of striking sheet (3) adjacent gate leaf length that wherein the length of first section breach (7) is the 1/2-7/10 of groove length.
5. like claim 1,2 or 3 described a kind of zero arcing arc-control devices, it is characterized in that two side ends of said grid sheet (2) are processed with recessed limited step (9) respectively, limited step (9) is stuck in the slot.
6. like claim 1,2 or 3 described a kind of zero arcing arc-control devices, it is characterized in that said insulation frame (6) is installed in grid sheet (2) top, insulation frame (6) is a rectangular frame with holes.
7. like claim 1,2 or 3 described a kind of zero arcing arc-control devices; It is characterized in that said arc extinguishing board (4) is installed on the insulation frame (6), arc extinguishing board (4) is a rectangle structure; And being processed with pore along transversal line, the size of pore adapts with the interval of arranging with grid sheet (2).
8. like claim 1,2 or 3 described a kind of zero arcing arc-control devices, it is characterized in that the said net (5) that goes to dissociate is installed on the arc extinguishing board (4), goes free net (5) to be made up of one or more layers of arc extinguishing net sheet.
9. like claim 1,2 or 3 described a kind of zero arcing arc-control devices, it is characterized in that said arc extinguishing board (4) and insulation frame (6) are processed as one.
10. like claim 1,2 or 3 described a kind of zero arcing arc-control devices, it is characterized in that the said net (5) that goes to dissociate is made up of the arc extinguishing net sheet of different meshes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204172723U CN202258892U (en) | 2011-10-28 | 2011-10-28 | Zero-flashover arc extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204172723U CN202258892U (en) | 2011-10-28 | 2011-10-28 | Zero-flashover arc extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258892U true CN202258892U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204172723U Expired - Fee Related CN202258892U (en) | 2011-10-28 | 2011-10-28 | Zero-flashover arc extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258892U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446642A (en) * | 2011-10-28 | 2012-05-09 | 常熟市瑞特电器有限责任公司 | Zero arc extinguishing device |
| CN107230571A (en) * | 2016-03-24 | 2017-10-03 | 施耐德电器工业公司 | The electrical equipment for being used to disconnect electric current in air including extinguishing gas-filtering device |
-
2011
- 2011-10-28 CN CN2011204172723U patent/CN202258892U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446642A (en) * | 2011-10-28 | 2012-05-09 | 常熟市瑞特电器有限责任公司 | Zero arc extinguishing device |
| CN102446642B (en) * | 2011-10-28 | 2014-02-19 | 常熟瑞特电气股份有限公司 | Zero arc extinguishing device |
| CN107230571A (en) * | 2016-03-24 | 2017-10-03 | 施耐德电器工业公司 | The electrical equipment for being used to disconnect electric current in air including extinguishing gas-filtering device |
| CN107230571B (en) * | 2016-03-24 | 2020-11-27 | 施耐德电器工业公司 | Electrical apparatus for breaking the current in air comprising a quenching gas filtering 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 |
Owner name: CHANGSHU RUITE ELECTRIC CO., LTD. Free format text: FORMER NAME: CHANGSHU RUITE ELECTRICAL APPARATUS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 215500 No. 40, Suzhou Road, hi tech Industrial Park, Suzhou, Jiangsu, Changshu Patentee after: Changshu Ruite Electric Co., Ltd. Address before: 215500 No. 40, Suzhou Road, hi tech Industrial Park, Suzhou, Jiangsu, Changshu Patentee before: Changshu Ruite Electrical Apparatus Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20151028 |
|
| EXPY | Termination of patent right or utility model |