CN206098220U - Explosion chamber for circuit breaker - Google Patents
Explosion chamber for circuit breaker Download PDFInfo
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- CN206098220U CN206098220U CN201621176164.0U CN201621176164U CN206098220U CN 206098220 U CN206098220 U CN 206098220U CN 201621176164 U CN201621176164 U CN 201621176164U CN 206098220 U CN206098220 U CN 206098220U
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- grid
- permanent magnet
- arc extinguishing
- pair
- arc
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Abstract
The utility model provides an explosion chamber for circuit breaker, belongs to the low -voltage electrical equipment field. Including the metal gate piece of many pieces of arrays, the metal gate piece includes bars piece basal portion, and both ends constitute bars piece leg to contact system one side extension about bars piece basal portion, its characterized in that bars piece basal portion is equipped with at least a pair of permanent magnet in the outside at the both ends of the one side of keeping away from bars piece leg, and it is relative that a pair of permanent magnet is homopolar. The advantage: make the arc energy get into metal gate piece group fast through the permanent magnet of addding to improve the arc extinguishing ability of circuit breaker, and satisfied the requirement of nonpolarity circuit breaker.
Description
Technical field
This utility model belongs to low voltage electrical apparatus technology field, and in particular to a kind of arc extinguishing chamber for breaker.
Background technology
As the speed of the development of new forms of energy, particularly solar photovoltaic industry hails exhibition, chopper is needed to have more preferable
Direct current arc extinguishing ability, to adapt to the new development trend given by the epoch.
Important composition part of the arc-chutes as chopper, its effect are that the electric arc to producing on contact system puts out
Go out.Arc-chutes include the grid group of side plate and array positioned at both sides in biside plate.Described grid is usually metal plate-like
Structure, its both sides have extended downwardly a pair of grid lower limbs.During arc extinguishing, electric arc by electromagnetic field power drive and enter grid be divided it is cold
But so as to extinguishing.And in some new forms of energy occasions, especially many power supply micro-grid systems, by the sense of current of dc circuit breaker
It is uncertain, there is the risk of certain failure, and small current situation, electromagnetic field so as to cause the rightabout electric current of chopper disjunction
Driving force is less, is difficult to drive arc motion.The problems referred to above are badly in need of solving.
The content of the invention
The purpose of this utility model is to provide for a kind of arc extinguishing chamber for breaker, and which can cause arc energy fast by permanent magnet
Grid array is entered fastly, to improve the arc extinguishing ability of chopper, while meeting the requirement of nonpolarity chopper.
The purpose of this utility model is such to what is reached, a kind of arc extinguishing chamber for breaker, including the metal of many pieces of arrays
Grid, described metal grid include that grid base portion, grid base portion or so two ends extend downwardly composition grid lower limb；Grid base portion exists
At least one pair of permanent magnet is provided with the outside of the two ends of side upwards, a pair of permanent magnet homopolarities are relative.
In a specific embodiment of the present utility model, also including support, support is a pair and is located at grid base
Outside of the portion away from the two ends of the side of grid lower limb, described permanent magnet are arranged on the inside of support.
In another specific embodiment of the present utility model, described support is provided with for installing permanent magnet extremely
A few inner chamber, described inner chamber is atrium, and the opening of inner chamber is directed away from the direction of metal grid.
In another specific embodiment of the present utility model, described inner chamber be it is multipair, accordingly, described installation
Also it is multipair in its internal permanent magnet.
In another specific embodiment of the present utility model, the N of a pair of described permanent magnets is extremely relative.
In an of the present utility model and then specific embodiment, described metal grid is using not magnetic conductive metal material
Make.
Of the present utility model more and in a specific embodiment, described support is made using insulated heat material.
It is of the present utility model and and in a specific embodiment, the internal magnetic field direction of two described permanent magnets is in
Angle between 45 ° to 135 °.
Of the present utility model again and in a specific embodiment, the internal magnetic field direction of two described permanent magnets is in
90 ° of angles.
This utility model is due to being provided with least one pair of permanent magnetism on the outside of the two ends in metal grid away from the side of grid lower limb
Body, a pair of permanent magnet homopolarities are relative, and the permanent magnet in said structure by setting up causes arc energy to be rapidly introduced into metal grid
Array, so as to improve the arc extinguishing ability of chopper, and meets the requirement of nonpolarity chopper.
Description of the drawings
Fig. 1 shows the structure chart of first embodiment of the present utility model.
Fig. 2 shows the structure chart of second embodiment of the present utility model.
Fig. 3 shows the local structural graph of first embodiment of the present utility model.
Fig. 4 shows the local structural graph of second embodiment of the present utility model.
Fig. 5 shows this utility model grid schematic diagram.
Fig. 6 shows this utility model planing surface structure chart.
Fig. 7 shows a kind of force diagram of electric arc of the present utility model.
Fig. 8 shows another kind of force diagram of electric arc of the present utility model.
Fig. 9 shows another force diagram of electric arc of the present utility model.
Figure 10 shows another force diagram of electric arc of the present utility model.
Figure 11 shows a kind of force diagram that electric arc of the present utility model is entered before metal grid.
Figure 12 shows another kind of force diagram that electric arc of the present utility model is entered before metal grid.
In figure：1. metal grid, 11. grid lower limbs, 12. grid base portions, 13. arc gaps；2. support, 21. inner chambers；3. forever
Magnet.
Specific embodiment
Applicant is elaborated below by way of example, but the description to embodiment is not to this reality
It is with the restriction of new technique scheme, any according to only pro forma rather than substantial done by this utility model design
Equivalent transformation is regarded as the technical solution of the utility model category.
Fig. 1 to Figure 12 is referred to, this utility model is related to a kind of arc extinguishing chamber for breaker, specially metal grid arc extinguishing
Room, left and right described below, overlying relation are defined by direction shown in Fig. 6.Described arc-chutes include the metal gate of array
Piece 1, generally described metal grid 1 are arranged on the side plate of both sides（Side plate is not shown）, described metal grid 1 includes grid
Lower limb 11 and grid base portion 12,12 or so two ends of grid base portion extend downwardly composition grid lower limb 11, and described grid lower limb 11 is used to inhale
Striking arc is rapidly in contact with it, and after electric arc enters grid lower limb 11, which can move outwardly and into the grid base of metal grid 1
Portion 12, disappears free on grid base portion 12 and cools down, and finally extinguish.
In order that electric arc rapidly enters metal grid 1, this utility model is in grid base portion 12 the two of side upwards
At least one pair of permanent magnet 3 is provided with the outside of end, described permanent magnet 3 is generally fabricated by by neodymium ferrum roc, its own carries magnetic field,
The internal magnetic field direction of permanent magnet 3 is to point to N poles from its S pole.Such as Figure 11, Figure 12, according to the direction of arc current, electric arc will be by
Its direction is different and deflect to the side in the both sides of metal grid 1, specifically, when the sense of current of electric arc is into figure
When showing the direction of plane, described electric arc is deflected to the left by the effect of permanent magnet 3, and the sense of current of electric arc is schemed to flow out
When showing the direction of plane, described electric arc is deflected to the right by the effect of permanent magnet 3.Metal grid 1 is conductive material, if golden
Category grid 1 is high magnetic conductive metal material simultaneously, and such as No. 10 steel, then the magnetic field major part that permanent magnet 3 is produced enter metal grid 1
Inside, and then Figure 11,12 shown traction electric arcs effects will weaken.Contrary, if metal grid 1 is not magnetic conduction gold
Category material, then such as austenitic stainless steel or copper, the magnetic field that permanent magnet 3 is produced most of will not enter metal grid 1 and then scheme
11st, the effect of the 12 traction electric arcs for being shown will be strengthened.After electric arc enters metal grid 1, its stressing conditions such as Fig. 7 is extremely
10, in this process, if metal grid 1 is high magnetic conductive metal material, the magnetic field major part that permanent magnet 3 is produced enters metal gate
The inside of piece 1, now occurs mainly in part of the electric arc in metal grid 1, and if metal gate to the effect of the power of electric arc
Piece 1 is not magnetic conductive metal material, then the magnetic field that permanent magnet 3 is produced is predominantly located in the space between metal grid 1, now right
The effect of the power of electric arc occurs mainly in part of the electric arc between metal grid 1.The side of the force for spending as shown in Figure 7 to 10
To electric arc can be moved in metal grid 1, so as to arc energy is cooled down faster, and then accelerate the extinguishing of electric arc.And due to
The magnetic field of annular is produced, the peer of two permanent magnets 3 should be oppositely arranged, i.e., N poles are extremely relative with N or S poles are extremely relative with S, this kind of
Setting enables it to meet the requirement of nonpolarity chopper, and above-mentioned is oppositely arranged including inclined just to arranging and having certain angle
What is turned is oppositely arranged.Specifically, after two magnetic pole deflection angles are oppositely arranged, the internal magnetic field direction of two permanent magnets 3 will be formed
Certain angle, it is preferred that the internal magnetic field direction of two described permanent magnets 3 is more highly preferred in the angle between 45 ° to 135 °
For 90 ° of angles.Permanent magnet 3 can produce the effect of pullling to electric arc, and then accelerate the extinguishing of electric arc.Specifically, Fig. 7, electric arc
Flow direction be into diagram plane direction, and electric arc be located at grid base portion 12 right side, now electric arc by permanent magnet 3 magnetic field
Effect, with the mobile trend to the upper left corner of metal grid 1；Such as Fig. 8, and the flow direction for working as electric arc is into diagram plane side
To, and electric arc is located at the left side of grid base portion 12, now electric arc receives the action of a magnetic field of permanent magnet 3, with to a left side for metal grid 1
The mobile trend of inferior horn；It can be seen that when the flow direction of electric arc is the direction into diagram plane, electric arc is totally by metal grid 1
The mobile trend in left side.It is contrary and to work as the flow direction of electric arc to pass diagram in-plane such as Fig. 9, and electric arc is located at grid base
The left side in portion 12, now electric arc by permanent magnet 3 the action of a magnetic field, with the mobile trend to the upper right corner of metal grid 1；As schemed
10, and work as the flow direction of electric arc to pass diagram in-plane, and electric arc is located at the right side of grid base portion 12, now electric arc receives permanent magnetism
The action of a magnetic field of body 3, with the mobile trend to the lower right corner of metal grid 1；It can be seen that when the flow direction of electric arc is flat to pass diagram
The direction in face, the overall trend by moving to the right side of metal grid 1 of electric arc.It can be seen that, for electric arc, above-mentioned permanent magnetism
The setting of body 3 is to the left or electric arc is pullled on right side, so that arc energy contacts more grid base portions 12, accelerates electricity
The free and rate of cooling that disappears of arc.
In order to protect and install permanent magnet 3, also including support 2, the material of the support 2 can select insulated heat material,
Such as DMC, BMC, asbestos are made.As shown in Figure 1 to Figure 4, including two kinds of embodiments, its medium-height trestle 2 is used to install permanent magnet 3, and
Support 2 can be installed in arc-chutes side plate (not shown) according to circuit breaker internal structure, or is integrally set with arc-chutes side plate
Put.Certainly, support 2 also may be mounted to circuit breaker base（Not shown in figure）Inside, or be wholely set with circuit breaker base.It is described
Support 2 be provided with the inner chamber 21 for installing permanent magnet 3, described inner chamber 21 is atrium, and the opening of inner chamber 21 is directed away from gold
The direction of category grid 1, so as to ensure that contact of its internal permanent magnet 3 installed from high-temperature gas, while it also avoid electricity
Stream flows through permanent magnet 3.
If Fig. 1,3 are first embodiment, described support 2 is a quarter cylinder, as right angle segment, described
The two ends of the top of metal grid 1 have arc gap 13（Shown in Fig. 5）, the arc gap 13 in such metal grid 1 can be with
Support 2 is contacted, so as to ensure that position relationship between the two, for both discontiguous position relationships so that two
Stablizing for the position relationship of person is relatively reliable, is offered for installing the inner chamber 21 of permanent magnet 3, inner chamber on described support 2
21 is atrium, and permanent magnet 3 can be filled in from opening, and the cooperation between described inner chamber 21 and permanent magnet 3 should be able to meet
Permanent magnet 3 is fixed to inside support 2, for example with interference matching relationship meeting the fixation of above-mentioned permanent magnet 3.In order to full
The requirement of sufficient nonpolarity chopper, and electric arc should quickly be extinguished on grid base portion 12, described permanent magnet 3 is a pair,
Corresponding described support 2 is also a pair, positioned at the outside at the two ends of the top of metal grid 1.For inner chamber 21,
In one embodiment, which is multiple, and interval setting, and each inner chamber 21 both corresponds to a metal grid 1, i.e., a pair of permanent magnets 3
Just to piece of metal grid 1.If permanent magnet 3 is multipair certainly, described inner chamber 21 is also multipair, described each pair permanent magnet
3 can selectively correspond to a metal grid 1, some metal grid 1 can no corresponding permanent magnet 3 corresponding to.
As Fig. 2,4, be second embodiment, second embodiment with first embodiment difference is：One support 2 is provided with
Inner chamber 21 be one, so as to can only accommodate a permanent magnet 3 on a support 2, certainly the length of described inner chamber 21 is equal to
The length along array direction after all 1 arrays of metal grid.Described support 2 is two, so as to a pair of permanent magnets 3 can correspondence
All of metal grid 1.Second embodiment can produce more powerful magnetic field relative to first embodiment, so as to draw the power of electric arc
Bigger, electric arc more can quickly enter metal grid 1.
Claims (9)
1. a kind of metal grid (1) of arc extinguishing chamber for breaker, including many pieces of arrays, described metal grid (1) is including grid
Base portion (12), grid base portion (12) left and right two ends extend downwardly composition grid lower limb (11)；It is characterized in that grid base portion (12) exists
At least one pair of permanent magnet (3) is provided with the outside of the two ends of side upwards, a pair of permanent magnet (3) homopolarities are relative.
2. a kind of arc extinguishing chamber for breaker according to claim 1, it is characterised in that also including support (2), support (2) is
A pair and outside of the grid base portion (12) away from the two ends of the side of grid lower limb (11) is located at, described permanent magnet (3) is installed
In the inside of support (2).
3. a kind of arc extinguishing chamber for breaker according to claim 2, it is characterised in that described support (2) be provided with for
At least one inner chamber (21) of permanent magnet (3) is installed, described inner chamber (21) is atrium, the opening of inner chamber (21) is directed away from
The direction of metal grid (1).
4. a kind of arc extinguishing chamber for breaker according to claim 3, it is characterised in that described inner chamber (21) is multipair, phase
Answer, described is also multipair installed in its internal permanent magnet (3).
5. a kind of arc extinguishing chamber for breaker according to claim 1, it is characterised in that the N of described a pair of permanent magnets (3)
It is extremely relative.
6. a kind of arc extinguishing chamber for breaker according to claim 1, it is characterised in that metal grid (1) is using not magnetic conduction gold
Category material is made.
7. a kind of arc extinguishing chamber for breaker according to claim 2, it is characterised in that described support (2) using insulation every
Hot material is made.
8. a kind of arc extinguishing chamber for breaker according to claim 2, it is characterised in that the inside of described two permanent magnets (3)
Magnetic direction is in the angle between 45 ° to 135 °.
9. a kind of arc extinguishing chamber for breaker according to claim 8, it is characterised in that the inside of described two permanent magnets (3)
Magnetic direction is in 90 ° of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621176164.0U CN206098220U (en) | 2016-10-27 | 2016-10-27 | Explosion chamber for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621176164.0U CN206098220U (en) | 2016-10-27 | 2016-10-27 | Explosion chamber for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206098220U true CN206098220U (en) | 2017-04-12 |
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ID=58486581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621176164.0U Active CN206098220U (en) | 2016-10-27 | 2016-10-27 | Explosion chamber for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206098220U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252824A1 (en) * | 2021-06-03 | 2022-12-08 | 厦门宏发开关设备有限公司 | Breaking device |
-
2016
- 2016-10-27 CN CN201621176164.0U patent/CN206098220U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252824A1 (en) * | 2021-06-03 | 2022-12-08 | 厦门宏发开关设备有限公司 | Breaking device |
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