CN2762330Y - Arc-chutes of low-voltage circuit breaker - Google Patents
Arc-chutes of low-voltage circuit breaker Download PDFInfo
- Publication number
- CN2762330Y CN2762330Y CN 200420077340 CN200420077340U CN2762330Y CN 2762330 Y CN2762330 Y CN 2762330Y CN 200420077340 CN200420077340 CN 200420077340 CN 200420077340 U CN200420077340 U CN 200420077340U CN 2762330 Y CN2762330 Y CN 2762330Y
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- Prior art keywords
- control device
- arc
- circuit breaker
- voltage circuit
- low
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- Expired - Lifetime
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The utility model relates to an arc-extinguishing chamber of a low-voltage circuit breaker. The utility model comprises an arc-extinguishing device composed of a plurality of similar U-shaped metal plates, wherein a plurality of metal plates are fixed by at least a pair of connecting strips positioned at two sides, the arc-extinguishing device is sealed in a box-shaped shell body made of insulating materials, a fixed electrode which can cooperate with a movable electrode is arranged in the shell body and the wiring end of the fixed electrode is penetrated out of the shell body. The shell body is provided with at least one exhaust port and an opening causing the movable electrode to pass. The metal plates and the connecting strips of the utility model can be assembled easily, the box-shaped shell body is used for causing every arc-extinguishing chamber to form a standard single-pole unit, fully hard and beautiful modularized combing form can be obtained, and the utility model is particularly convenient for production, storage and management. A reflecting plate on one side wall can generate the compounds of gaseous substances when electric arcs occur, the diffusion of the electric arcs can be effectively controlled and arc blowing effect can be also generated.
Description
Technical field
The utility model relates to a kind of low-voltage electrical apparatus, specifically a kind of arc control device of moulded-on type low-voltage circuit breaker.
Background technology
The arc control device of existing low-voltage circuit breaker as shown in Figure 1, generally include sidewall 1,2 and a plurality of metallic plate 3 that two insulating material are made.Each metallic plate is generally " U " shape, and has a plurality of projections 30 at outer ledge, matches with corresponding opening 40 on the sidewall 1,2, is used for the fastening and installation of metallic plate, suitably guarantees the mechanical strength and the stability of arc control device.The metallic plate of this structure and the installing and locating between the sidewall be difficulty relatively, and technology is comparatively complicated, more is unfavorable for producing in enormous quantities.Its another defective is that arc extinction performance is still undesirable.
Summary of the invention
What the utility model will overcome is the problems referred to above of the arc control device existence of existing low-voltage circuit breaker, aim to provide a kind of arc control device of low-voltage circuit breaker, arc control device itself constitute a kind of standard one pole arc control device, can obtain fully solid and attractive in appearance modular combining form, especially be convenient to produce, store and management.
The purpose of this utility model also is to provide a kind of arc control device of low-voltage circuit breaker, and arc control device comprise that use can be sent and can reduce the reflecting plate that electric arc produces the gaseous material of correlated phenomena.
The purpose of this utility model also is to provide a kind of arc control device of low-voltage circuit breaker, and arc control device comprise use " U " shape magnetic conductive board, and this magnetic conductive board can effectively be controlled the electric arc diffusion, and can effectively electric arc be blowed to the arc extinguishing district.
The purpose of this utility model also is to provide a kind of arc control device of low-voltage circuit breaker, and arc control device do not need very complicated mechanical processing just can have enough mechanical strengths and stability, and the very high ratio of performance to price is arranged.
For realizing above-mentioned utility model purpose, the utility model adopts following technical scheme: a kind of arc control device of low-voltage circuit breaker, comprise that described a plurality of metallic plates are fixed by at least one pair of bracing beam that is positioned at both sides by the arc-control device of the metallic plate formation of a plurality of similar " U " shape; Described arc-control device is encapsulated in the cassette shell of being made by insulating material, and one can be arranged on the fixed electrode of float electrode collaborative work in the described housing, and its terminals pass outside the described housing; The opening that also is provided with at least one exhaust outlet and can allows float electrode pass through on the described housing.
The arc control device of low-voltage circuit breaker of the present utility model, adopt bracing beam to fix a plurality of metallic plates, this connecting mode can be conventional any effective connecting mode, the most frequently used is cooperatively interacting between projection and the opening, because points of engagement is less, and each bracing beam only needs cooperating of one group of projection and opening usually, therefore assembles easily.The more important arc control device of the present utility model that are have adopted cassette shell that described arc-control device is encapsulated, make each arc control device constitute a kind of single pole units of standard, can obtain fully solid and attractive in appearance modular combining form, especially be convenient to produce, store and management.
Described housing is hexahedron, comprises two sidewalls, a diapire, a roof, a rear wall and an antetheca, and described exhaust outlet is arranged on described antetheca and/or the roof, and the opening that described float electrode is passed through is arranged on the described rear wall.Have projection and/or groove that at least one is used to be positioned arc-control device in the described housing inner chamber.The opening inboard of described housing is provided with the slit that can allow slide plate pass through, and described slide plate is sleeved on the described float electrode and is driven together and works, and it seals arc control device relatively, guarantees that most of gas discharges from exhaust outlet.Certainly, slide plate also can otherwise be realized.As curtain, forms such as bellows.
As further improvement of the utility model, also be provided with the reflecting plate of making by insulating material on the sidewall of described housing, and described reflecting plate can produce the compound of gaseous material when electric arc occurs, and this gas can effectively be controlled the electric arc diffusion, and can produce the arc blow-out effect.Described reflecting plate produces the mixture that contains dicyanogen under the erosion of electric arc.Any one materials such as plastics that described reflecting plate adopts nylon PA6, melamine, unsaturated polyester (UP), fluoride resin, contain metal cyanides are made.Be provided with the groove that is used to hold reflecting plate in the inner chamber of described housing.Distance between distance between two sidewall surfaces of described arc-control device and the described two reflecting plate surfaces about equally.
Further improve as the utility model again, also be provided with " U " shape magnetic conductive board in the described arc control device, its bottom is passed from the fixed electrode centre or the outside, and both sides are clipped in the outside of two reflecting plates.Described " U " shape magnetic conductive board is assembled by two or more metallic plates.This erection method can be the combination of " L " shape and " I " shape metallic plate, the perhaps combination of two " I " shapes and " one " shape metallic plate, or the combination of two " L " shape metallic plates.Be provided with the groove that is used to hold magnetic conductive board in the inner chamber of described housing.Has the groove that at least one is used to hold described magnetic conductive board on the described reflecting plate.
Further improve as the utility model, the exhaust outlet of described housing is provided with at least one metal free plate that disappears, and offering a plurality of similar circles or rectangle or rhombus or multiple shape on the described free plate that disappears can be for the aperture of exhaust.The multilayer free plate that disappears adopts the mode of stack to be provided with.When the electric arc interruption took place in the arc control device, ionized gas successively by the aperture on the free plate that disappears, was cooled off through mazy circuitous approach and reflection effectively.
Description of drawings
By the following detailed description that embodiment did to the utility model, can be expressly understood its some advantages and feature, this embodiment is that the form with the indefiniteness example provides, and is represented by accompanying drawing.
Fig. 1 is the decomposition diagram of the arc control device of prior art;
Fig. 2 is the decomposition diagram of arc control device of the present utility model;
Fig. 3 (A) and Fig. 3 (B) are observed from different perspectives schematic diagrames after the arc control device assembling of the present utility model;
Fig. 4 (A) and Fig. 4 (B) are respectively the perspective views of the left and right housing of arc control device of the present utility model;
Fig. 5 (A) and Fig. 5 (B) are respectively the perspective views of left and right housing among another embodiment of arc control device of the present utility model;
Fig. 6 is arc control device housing and the slide plate work schematic diagram of another embodiment of the present utility model;
Fig. 7 is an arc control device magnetic conductive board structural representation of the present utility model;
Fig. 8 is arc control device reflecting plate of the present utility model, fixed contact, magnetic conductive board package assembly schematic diagram;
Fig. 9 is an arc control device cutaway view of the present utility model.
Embodiment
Figure 1 shows that the arc control device of prior art, as can be seen from the figure, " U " shape metallic plate 3 both sides of the edge have many group projections 30, match with corresponding opening 40 on the sidewall 1,2, because points of engagement is more and dispersion, and is quite high to requirement on machining accuracy, also causes assembly difficulty big simultaneously.Secondly, these arc control device are opened, and are difficult to form standard module, can't carry out modularization and produce in enormous quantities.
With reference to Fig. 2, Fig. 3 (A) and Fig. 3 (B), arc control device of the present utility model comprise the arc-control device 51 by metallic plate 10 formations of a plurality of similar " U " shape, and described a plurality of metallic plates 10 are fixing by a pair of bracing beam 12 that is positioned at both sides; Described arc-control device 51 adopts the riveted joint modes to be encapsulated in the cassette shell 18,19 of being made by insulating material.Described housing is made of left shell 18 and right shell body 19 two parts of basic symmetry, integral body is hexahedron, comprise two sidewalls 21,22, diapire 23, roof 24, a rear wall 25 and an antetheca 26, on described antetheca 26, offer exhaust outlet 31, on described rear wall 25, offer the opening 32 that allows described float electrode pass through.The bottom that can be arranged on described arc-control device 51 with the fixed electrode 15 of float electrode 63 collaborative works, its terminals pass outside the described housing 18,19.
Also be provided with reflecting plate 16,17 on the sidewall 21,22 of described housing, this reflecting plate is made by insulating material, for example is nylon PA6, melamine, unsaturated polyester (UP), fluoride resin, contains the plastics of metal cyanides etc.This insulating material can produce the mixture that contains dicyanogen under the erosion of electric arc, because the dicyanogen cooling effect descends the electric arc ambient air temperature, electric arc attenuates, the diffusion of control electric arc, and resistance and arc voltage increase.Also, the arc control device gas pressure is risen rapidly, thereby effectively electric arc is blowed to arc-control device owing to the gas that produces.
Fig. 4 and Fig. 5 illustrate two kinds of embodiment of arc control device housing of the present utility model respectively.With reference to Fig. 4 (A) and Fig. 4 (B), respectively be provided with the groove 98 that is used to hold reflecting plate 16,17 and magnetic conductive board 13 in the inner chamber 99 of described left and right housing, and a pair of projection and/or the groove 57 that is used to be positioned arc-control device 51.In the exhaust outlet 31 of housing, have the slit 42,41 of the one or more free plates 11 that disappear in one or more location.Certainly the projection 57 and/or the groove 57 of these housings also can be opened on reflecting plate 16,17, can play the effect that is equal to.
Fig. 5 is on the basis of Fig. 4 embodiment, and the slit 44,45 that can slide for slide plate 61 that has of arc control device housing 18,19 of the present utility model is shown especially, and it seals arc control device relatively, guarantees that most of gas discharges from exhaust outlet.Certainly, slide plate also can otherwise be realized.As curtain, forms such as bellows.
Fig. 6 illustrates arc control device slide plate 61 of the present utility model working method in slit 44,45.When circuit breaker carries out the closed and disconnected operation, float electrode 63 is being with slide plate 61 at slit 44, slide up and down in 45, guarantee that not only arc control device all are in sealing or relative sealing state when closed and disconnected, guarantee that arc control device have bigger gas pressure, and can guarantee that most of gas is all from exhaust outlet 31 discharges.
Fig. 7 illustrates arc control device magnetic conductive board 13 of the present utility model and adopts version." U " shape magnetic conductive board 13 is spliced by " L " shape metallic plate 5 and " I " shape metallic plate 4.Certainly magnetic conductive board 13 also can be by two " I " shapes and " one " shape metallic plate splicing, perhaps two " L " shape metallic plate splicings or the splicing of other similar structures.
Fig. 8 illustrates the assembly relation of arc control device magnetic conductive board 13 of the present utility model, reflecting plate 16 and 17, fixed electrode 15.Fixed electrode 15 is contained between two reflecting plates 16,17, the bottom of magnetic conductive board 13 in the middle of fixed electrode 15 or the outside pass, both sides are clipped in the groove 36 in the outside of two reflecting plates 16,17.Arc-control device 51 is contained in the space between two reflecting plates 16,17 of fixed electrode 15 tops.Distance between distance between 51 two sidewalls of arc-control device, 58,59 surfaces and two reflecting plates, 16,17 surfaces about equally.
Fig. 9 illustrates arc control device cutaway view of the present utility model, reflection arc-control device 51, the free plate 11 that disappears, magnetic conductive board 13, reflecting plate 16,17, fixed electrode 15, housing 18,19 rigging positions relation.The exhaust outlet 31 of described housing is provided with a metal free plate 11 that disappears, and offering a plurality of similar circles or rectangle or rhombus or multiple shape on the described free plate 11 that disappears can be for the aperture of exhaust.Can certainly adopt the mode of stack that the multilayer free plate 11 that disappears is set, free better effects if disappears.
Molded case circuit breaker is generally used in the industrial low-voltage power system, when the major break down electric current appears very in circuit system, circuit breaker disconnects circuit, voltage between fixed electrode 15 and the float electrode 63 causes the air dielectric discharge, cause in arc control device 100, forming electric arc, in the electric arc forming process, because Arc Temperature is very high, thereby make reflecting plate produce a kind of compound of gaseous material, arc control device indoor gas pressure rises rapidly, and this gases at high pressure not only can be controlled the electric arc diffusion, but also can blow to arc-control device 51 to electric arc, simultaneously, arc control device are provided with U-shaped magnetic conductive board 13, have increased the magnetic field intensity in producing arc zone greatly, and electric arc is under the action of a magnetic field, produce an electric power forward, this also impels electric arc to move to arc-control device, through arc-control device electric arc is cooled off and deionization, and electric arc extinguishes very soon, gas further disappears free through the free plate 11 of disappearing of exhaust outlet 31, and discharges from exhaust outlet 31.Effective safeguard industries system is not damaged behind the arc extinction.
The housing riveted joint that arc control device are made by two high-strength insulating material is formed, can bear very high-temperature and very big impulsive force, and can obtain fully solid and attractive in appearance modular standard one pole arc control device combining form, especially be convenient to produce, store and management.
The utility model has no to be confined to this more specifically described embodiment signal naturally, but can extension to other some embodiment, therefore can expect and to carry out numerous modifications and variations to arc control device, all modifications and changing all in the scope of utility model design, all details can be with technical identical or equivalent element replacement.Particularly such embodiment: the housing that adopts two insulating material to make uses effective connecting mode arc-control device, the free plate that disappears, fixed electrode, reflecting plate, magnetic conductive board comprises, and can obtain the arc control device of fully solid and attractive in appearance modular standard one pole arc control device combining form.
Claims (14)
1, a kind of arc control device of low-voltage circuit breaker comprise the arc-control device (51) by metallic plate (10) formation of a plurality of similar " U " shape, it is characterized in that described a plurality of metallic plate (10) is fixing by at least one pair of bracing beam (12) that is positioned at both sides; Described arc-control device (51) is encapsulated in a cassette shell (18 of being made by insulating material, 19) in, one can be arranged on the fixed electrode (15) of float electrode (63) collaborative work in the described housing (18,19), its terminals pass outside the described housing (18,19); The opening (32) that also is provided with at least one exhaust outlet (31) on the described housing (18,19) and can allows float electrode (63) pass through.
2, the arc control device of low-voltage circuit breaker as claimed in claim 1, it is characterized in that described housing is hexahedron, comprise two sidewalls (21,22), a diapire (23), a roof (24), a rear wall (25) and an antetheca (26), described exhaust outlet (31) is arranged on described antetheca (26) and/or the roof (24), and the opening that described float electrode is passed through (32) is arranged on the described rear wall (25).
3, the arc control device of low-voltage circuit breaker as claimed in claim 2 is characterized in that having projection and/or the groove (57) that at least one is used to be positioned arc-control device (51) in described housing (18, the 19) inner chamber.
4, the arc control device of low-voltage circuit breaker as claimed in claim 3, it is characterized in that described housing (18,19) opening (32) inboard is provided with the slit (44,45) that can allow slide plate (61) pass through, and described slide plate (61) is sleeved on last also the drive together of described float electrode (63) and works.
5, as the arc control device of any one described low-voltage circuit breaker of claim 1～4, it is characterized in that also being provided with on the sidewall (21,22) of described housing the reflecting plate of making by insulating material and when electric arc occurs, can produce the gaseous compound of control electric arc diffusion (16,17).
6, the arc control device of low-voltage circuit breaker as claimed in claim 5 is characterized in that being provided with the groove (98) that is used to hold reflecting plate (16,17) in the inner chamber (99) of described housing.
7, the arc control device of low-voltage circuit breaker as claimed in claim 6, it is characterized in that between distance and described two reflecting plates (16, the 17) surface between two sidewalls (58,59) surface of described arc-control device (51) distance about equally.
8, the arc control device of low-voltage circuit breaker as claimed in claim 5 is characterized in that also being provided with " U " shape magnetic conductive board (13), and its bottom is passed from fixed electrode (15) centre or the outside, and both sides are clipped in the outside of two reflecting plates (16,17).
9, the arc control device of low-voltage circuit breaker as claimed in claim 8 is characterized in that described " U " shape magnetic conductive board (13) is assembled by two or more metallic plates.
10, the arc control device of low-voltage circuit breaker as claimed in claim 9, it is characterized in that described " U " shape magnetic conductive board (13) is by " L " shape and " I " shape metallic plate (4,5) or two " I " shapes and " one " shape metallic plate, or two " L " shape metal plate structures are assemblied to form.
11, the arc control device of low-voltage circuit breaker as claimed in claim 8 is characterized in that being provided with the groove (98) that is used to hold magnetic conductive board (13) in the inner chamber (99) of described housing.
12, the arc control device of low-voltage circuit breaker as claimed in claim 8 is characterized in that having at least one groove that is used to hold described magnetic conductive board (13) (36) on the described reflecting plate (16,17).
13, as the arc control device of any one described low-voltage circuit breaker of claim 1～4, the exhaust outlet (31) that it is characterized in that described housing is provided with at least one metal free plate (11) that disappears, and offering a plurality of similar circles or rectangle or rhombus or multiple shape on the described free plate (11) that disappears can be for the aperture of exhaust.
14, the arc control device of low-voltage circuit breaker as claimed in claim 13 is characterized in that the multilayer free plate (11) that disappears adopts the mode of stack to be provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420077340 CN2762330Y (en) | 2004-07-23 | 2004-07-23 | Arc-chutes of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420077340 CN2762330Y (en) | 2004-07-23 | 2004-07-23 | Arc-chutes of low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2762330Y true CN2762330Y (en) | 2006-03-01 |
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ID=36095447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420077340 Expired - Lifetime CN2762330Y (en) | 2004-07-23 | 2004-07-23 | Arc-chutes of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762330Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337290C (en) * | 2004-07-23 | 2007-09-12 | 浙江正泰电器股份有限公司 | Arc suppressing room of low voltage breaker |
| CN100416724C (en) * | 2006-06-05 | 2008-09-03 | 西安交通大学 | Low-voltage arc quenching system based on wall erosion to improve pneumatic repellent force and break performance |
| CN101944462A (en) * | 2010-09-15 | 2011-01-12 | 赵建平 | Arc extinguish chamber for moulded case circuit breaker |
| CN102339691A (en) * | 2010-07-15 | 2012-02-01 | 北京翠祥电器元件有限公司 | Combined magnetic-quenching device |
| EP2421015A1 (en) * | 2010-08-17 | 2012-02-22 | Eaton Corporation | Circuit breaker and arc chute with shield apparatus |
| CN102427009A (en) * | 2011-11-10 | 2012-04-25 | 江苏辉能电气有限公司 | Arc blowing device for low-voltage circuit breaker |
| CN103000466A (en) * | 2011-09-15 | 2013-03-27 | 西门子公司 | Breaker and breaker arc chamber component |
| CN102138193B (en) * | 2008-06-27 | 2014-01-22 | 黑格电子股份有限公司 | Arc extinction cage |
| CN105304424A (en) * | 2015-11-12 | 2016-02-03 | 天津市百利电气有限公司 | Molded case circuit breaker with semi-closed arc extinguishing chamber |
-
2004
- 2004-07-23 CN CN 200420077340 patent/CN2762330Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337290C (en) * | 2004-07-23 | 2007-09-12 | 浙江正泰电器股份有限公司 | Arc suppressing room of low voltage breaker |
| CN100416724C (en) * | 2006-06-05 | 2008-09-03 | 西安交通大学 | Low-voltage arc quenching system based on wall erosion to improve pneumatic repellent force and break performance |
| CN102138193B (en) * | 2008-06-27 | 2014-01-22 | 黑格电子股份有限公司 | Arc extinction cage |
| CN102339691A (en) * | 2010-07-15 | 2012-02-01 | 北京翠祥电器元件有限公司 | Combined magnetic-quenching device |
| CN102339691B (en) * | 2010-07-15 | 2014-11-19 | 北京翠祥电器元件有限公司 | Combined magnetic-quenching device |
| EP2421015A1 (en) * | 2010-08-17 | 2012-02-22 | Eaton Corporation | Circuit breaker and arc chute with shield apparatus |
| US8222555B2 (en) | 2010-08-17 | 2012-07-17 | Eaton Corporation | Circuit breaker and arc chute with shield apparatus |
| CN101944462A (en) * | 2010-09-15 | 2011-01-12 | 赵建平 | Arc extinguish chamber for moulded case circuit breaker |
| CN101944462B (en) * | 2010-09-15 | 2013-01-23 | 赵建平 | Arc extinguish chamber for moulded case circuit breaker |
| CN103000466A (en) * | 2011-09-15 | 2013-03-27 | 西门子公司 | Breaker and breaker arc chamber component |
| CN102427009A (en) * | 2011-11-10 | 2012-04-25 | 江苏辉能电气有限公司 | Arc blowing device for low-voltage circuit breaker |
| CN105304424A (en) * | 2015-11-12 | 2016-02-03 | 天津市百利电气有限公司 | Molded case circuit breaker with semi-closed arc extinguishing chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040723 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |