CN209199867U - The arc-chutes of breaker - Google Patents
The arc-chutes of breaker Download PDFInfo
- Publication number
- CN209199867U CN209199867U CN201821857030.4U CN201821857030U CN209199867U CN 209199867 U CN209199867 U CN 209199867U CN 201821857030 U CN201821857030 U CN 201821857030U CN 209199867 U CN209199867 U CN 209199867U
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- arc
- permanent magnet
- side wall
- shell
- chutes
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Abstract
The arc-chutes of breaker disclosed by the utility model, it includes shell (1), arc extinguishing grid pieces group (2) is placed in shell (1), left side wall (101) at shell (1) front opening and left production gas hood (3) and right production gas hood (4) are accordingly housed respectively on the medial surface of right side wall (102), it is characterised in that: the side of the inside of left side wall (101) and right side wall (102) at shell (1) front opening is correspondingly provided with left permanent magnet (5) and right permanent magnet (6) respectively.The quick extinguishing of arc-chutes realization dc circuit breaker electric arc.
Description
Technical field
The utility model belongs to breaker technical field, is specifically exactly to be related to the arc-chutes of breaker.
Background technique
Breaker is the pith in electrical power distribution apparatus, is mainly used for industrial low-voltage power system, for connecting and dividing
The danger of electric current and protection circuit and power-supply device in disconnected mains-power circuit from failures such as overload, under-voltage, short circuit, single-phase earthings
Evil.The function that breaker carries out disjunction to overload or short circuit current is mainly to be completed by the arc-chutes being mounted in breaker
's.When the electric current that breaks down in circuit, and when current value is more than the setting protection scope of breaker, tripping mechanism movement makes
The dynamic and static contact of breaker disconnects rapidly, and the voltage between dynamic and static contact causes air dielectric electric discharge to generate high temperature at this time
Electric arc.Electric arc causes the air themperature in arc-control device to steeply rise in combustion to accelerate air ionization.Another party
Face under the promotion in magnetic field and hydrodynamic effect of the electric arc in arc-chutes, is separated into multiple short arcs by multiple arc grid, by gold
Belong to the deionization effect that arc piece strengthens electric arc, electric arc becomes smaller and voltage rapidly increases, and makes arc extinction.
With the continuous propulsion of the new energy technologies such as photovoltaic, in certain new energy occasions, especially in the case of low current, electricity
Magnetic field strength is weaker, arc motion can not be driven to enter arc-chutes, for dc circuit breaker low current environment, arc extinction ratio
AC circuit breaker is difficult, and wants quickly to extinguish electric arc, it is important to electric arc is rapidly introduced into arc-chutes, striking side traditional at present
Formula includes drawing electric arc etc. by gas push electric arc, by arc striking piece pilot arc, by permanent magnet.
Chinese utility model patent Granted publication CN206116244 describes " a kind of arc-chutes of breaker ", arc-chutes
Grid including array, grid include grid base portion, and grid base portion has been embedded in permanent magnet blocks, and grid base portion further includes magnetic conduction
Portion, magnetic-conductance portion and permanent magnet blocks are combined together, and wherein magnetic-conductance portion is located at the left and right sides of permanent magnet blocks, and magnetic-conductance portion is to downward
It stretches, forms grid leg, the pole N and the pole S of permanent magnet blocks are located at the left and right sides, and the magnetic field that permanent magnet blocks generate is by grid leg and leads
Electric arc simultaneously is drawn close to grid base portion in magnetic portion；Or grid base portion is a permanent magnet, the pole N and the pole S of permanent magnet are located at left and right two
Side, the magnetic field that grid base portion generates pass through grid leg and draw electric arc close to grid base portion；Or further include permanent magnet piece, at least
Permanent magnet piece is equipped between the adjacent grid of two panels, the pole N and the pole S of permanent magnet piece are located at the left and right sides, what permanent magnet piece generated
Magnetic field passes through permanent magnet piece and draws electric arc close to grid base portion.The ability for increasing permanent magnet traction electric arc, improves disjunction
The reliability of low current, the quick traction which realizes electric arc by being embedded in permanent magnet among arc extinguishing grid pieces, but its
There are processing difficulties in structure, and permanent magnet is directly contacted with electric arc in the actual production process, and there are the risks of high temperature loss of excitation.
Utility model content
The purpose of this utility model is difficult to extinguish aiming at the small electric arc of above-mentioned existing direct current, embedding among arc extinguishing grid pieces
Enter permanent magnet realize electric arc quick traction there are the technological deficiencies of high temperature loss of excitation risk, a kind of arc-chutes of breaker are provided.
Realize the quick extinguishing of dc circuit breaker electric arc.
Technical solution
In order to achieve the above technical purposes, the arc-chutes of breaker provided by the utility model, it includes shell, arc-chute
Piece group is placed in shell, and left production gas is accordingly housed respectively on the left side wall of the housing forward end opening and the medial surface of right side wall
Cover and right production gas hood, it is characterised in that: distinguish phase in the side of the inside of the left side wall and right side wall of the housing forward end opening
Left permanent magnet and right permanent magnet should be provided with.
Preferably, the left permanent magnet and right permanent magnet be accordingly placed in the two side ends of the arc extinguishing grid pieces group with it is corresponding
The left side wall of shell and the medial surface of right side wall between within the space that is formed.
Preferably, the left permanent magnet and right permanent magnet are placed in corresponding left production gas hood and right production gas hood.
Preferably, the left permanent magnet and right permanent magnets same polarity are set relatively.
Preferably, the shell includes left outside shell and right casing, is set on the inside of the left side wall of the left shell front side
It is equipped with left permanent magnet, right permanent magnet is provided on the inside of the right side wall on front side of the right casing.
Preferably, the arc extinguishing grid pieces group includes arc extinguishing grid pieces that are several parallel and setting, and the arc extinguishing grid pieces are non-
Permeability magnetic material is made.
Beneficial effect
A kind of arc-chutes of breaker provided by the utility model, structure is simple, convenient for assembly, and low current electric arc is quickly put out
It goes out, permanent magnet and electric arc are completely cut off using gas hood is produced, and avoid the generation of high temperature magnet loss phenomenon.
Detailed description of the invention
Fig. 1 is the arc quenching chamber structure schematic diagram of the utility model embodiment.
Fig. 2 is permanent magnet arrangement schematic diagram in the utility model embodiment.
Fig. 3 a is the distribution of the pole permanent magnet N relative magnetic line and electric arc force diagram in the utility model embodiment.
Fig. 3 b is the distribution of permanent magnet S pole relative magnetic line and electric arc force diagram in the utility model embodiment.
Specific embodiment
With reference to the accompanying drawings and examples, utility model is described further.
Embodiment
As shown in Figure 1, the arc-chutes of breaker provided in this embodiment, it includes shell 1, and arc extinguishing grid pieces group 2 is placed in shell
In body 1, left side wall 101 at 1 front opening of shell and left production gas hood is accordingly housed respectively on the medial surface of right side wall 102
3 and right production gas hood 4, wherein distinguish phase in the side of the inside of left side wall 101 and right side wall 102 at 1 front opening of shell
Left permanent magnet 5 and right permanent magnet 6 should be provided with.The arc extinguishing grid pieces group 2 includes arc extinguishing coral piece that is several parallel and setting, if described
Several arc quenching plates 7 are arranged in the top of dry arc extinguishing grid pieces and bottom end, and the arc extinguishing grid pieces group 2 is made for non-magnet material.
In particular, as shown in Fig. 2, the left permanent magnet 5 and right permanent magnet 6 are accordingly placed in the arc extinguishing grid pieces group 2
Two side ends and the space a that is formed between the left side wall 101 of corresponding shell 1 and the medial surface of right side wall 102, within a '.
The left permanent magnet 5 and right permanent magnet 6 are placed in corresponding left production gas hood 3 and right production gas hood 4.
The left permanent magnet 5 and 6 same polarity of right permanent magnet are set relatively.
Wherein, the shell 1 includes left outside shell 103 and right casing 104, the left side wall 101 of left outside 103 front side of shell
Inside is provided with left permanent magnet 5, and the inside of the right side wall 102 of 104 front side of right casing is provided with right permanent magnet 6.
As depicted in figure 3 a, the N of left permanent magnet 5 and right permanent magnet 6 is extremely set, homopolar-repulsion relatively.It is illustrated as magnetic field point
The stress condition of cloth situation and forward current and reverse current in magnetic field.Effect of the electric current in magnetic field by Ampere force F.Peace
It is not only vertical with current direction but also vertical with magnetic direction to train power direction, and meets left hand rule.Electric arc is in magnetic field by ampere
The effect of power, no matter forward current or reverse current finally enter arc extinguishing grid pieces group 2, reaches extinguishing to move
The effect of electric arc.
As shown in fig. 3b, the S of left permanent magnet 5 and right permanent magnet 6 is extremely set, homopolar-repulsion relatively.It is illustrated as magnetic field point
The stress condition of cloth situation and forward current and reverse current in magnetic field.Effect of the electric current in magnetic field by Ampere force F.Peace
It is not only vertical with current direction but also vertical with magnetic direction to train power direction, and meets left hand rule.Electric arc is in magnetic field by ampere
The effect of power, no matter forward current or reverse current finally enter arc extinguishing grid pieces group 2, reaches extinguishing to move
The effect of electric arc.
The present embodiment structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the utility model enforceable qualifications, therefore not
Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are practical new not influencing this
Under the effect of type can be generated and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain and can contain
In the range of lid.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", " inverse time in this specification
The term of needle " etc. is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, it is opposite to close
System is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
Claims (6)
1. the arc-chutes of breaker, it includes shell (1), and arc extinguishing grid pieces group (2) is placed in shell (1), shell (1) front end
Left production gas hood (3) and right production gas hood are accordingly housed respectively on the left side wall (101) of opening and the medial surface of right side wall (102)
(4), it is characterised in that: the side of the inside of left side wall (101) and right side wall (102) at shell (1) front opening point
It is not correspondingly provided with left permanent magnet (5) and right permanent magnet (6).
2. the arc-chutes of breaker as described in claim 1, it is characterised in that: the left permanent magnet (5) and right permanent magnet (6)
Accordingly it is placed in the two side ends of the arc extinguishing grid pieces group (2) and the left side wall (101) of corresponding shell (1) and right side wall (102)
Within the space (a, a ') formed between medial surface.
3. the arc-chutes of breaker as described in claim 1, it is characterised in that: the left permanent magnet (5) and right permanent magnet (6)
It is placed in corresponding left production gas hood (3) and right production gas hood (4).
4. the arc-chutes of breaker as described in claim 1, it is characterised in that: the left permanent magnet (5) and right permanent magnet (6)
Same polarity is opposite and sets.
5. the arc-chutes of breaker as described in claim 1, it is characterised in that: the shell (1) include left outside shell (103) and
Right casing (104) is provided with left permanent magnet (5) on the inside of the left side wall (101) on front side of the left outside shell (103), described right outer
Right permanent magnet (6) are provided on the inside of right side wall (102) on front side of shell (104).
6. the arc-chutes of breaker as described in claim 1, it is characterised in that: the arc extinguishing grid pieces group (2) includes several flat
The arc extinguishing grid pieces gone and set, the arc extinguishing grid pieces are made for non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821857030.4U CN209199867U (en) | 2018-11-12 | 2018-11-12 | The arc-chutes of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821857030.4U CN209199867U (en) | 2018-11-12 | 2018-11-12 | The arc-chutes of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209199867U true CN209199867U (en) | 2019-08-02 |
Family
ID=67411144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821857030.4U Active CN209199867U (en) | 2018-11-12 | 2018-11-12 | The arc-chutes of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209199867U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853999A (en) * | 2019-11-11 | 2020-02-28 | 深圳供电局有限公司 | Circuit breaker |
| CN111048370A (en) * | 2019-12-28 | 2020-04-21 | 常熟市通润开关厂有限公司 | High-segmentation arc extinguish chamber for circuit breaker |
-
2018
- 2018-11-12 CN CN201821857030.4U patent/CN209199867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853999A (en) * | 2019-11-11 | 2020-02-28 | 深圳供电局有限公司 | Circuit breaker |
| CN111048370A (en) * | 2019-12-28 | 2020-04-21 | 常熟市通润开关厂有限公司 | High-segmentation arc extinguish chamber for circuit breaker |
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| GR01 | Patent grant |