CN209104078U - High-voltage DC contactor arc-control device - Google Patents
High-voltage DC contactor arc-control device Download PDFInfo
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- CN209104078U CN209104078U CN201822220667.9U CN201822220667U CN209104078U CN 209104078 U CN209104078 U CN 209104078U CN 201822220667 U CN201822220667 U CN 201822220667U CN 209104078 U CN209104078 U CN 209104078U
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- arc extinguishing
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Abstract
The utility model discloses a kind of high-voltage DC contactor arc-control device, with arc-chutes part and permanent magnetism arc blow-out part, arc-chutes part includes arc extinguishing chamber enclosure, the arc-extinguish chamber being fastened on above arc extinguishing chamber enclosure, the labyrinth arc extinguishing structure and arc liner plate for being respectively placed in two sides in arc-chutes；Two arc liner plates are set to labyrinth arc extinguishing structure entrance side；Permanent magnetism arc blow-out part is set between the arc extinguishing structure of two sides labyrinth, corresponds to moving contact and static contact disjunction position；Labyrinth arc extinguishing structure is the maze lattice being made of multi-disc liner plate, is inserted into multi-disc arc extinguishing grid pieces by the outlet side of labyrinth arc extinguishing structure；Arc liner plate is to form twice narrow slit arc extinguishing structure by four blocks of clay in arc-chutes two sides.The utility model generates because using permanent magnetism magnetic-quenching arc-extinguishing device and stablizes high-intensity magnetic field, monopolar operation voltage is up to 1500V-1800V, contactor is set to can control big capacity load, without critical current, without pyrotoxin, and have many advantages, such as that the processing of small in size, part is relatively easy, assembly efficiency is high.
Description
Technical field
The utility model relates to a kind of arc-control device, specially a kind of high-voltage DC contactor arc-control device.
Background technique
With the fast development of the industries such as China's rail traffic and new-energy automobile, for the breaking capacity of D.C. contactor
It also proposed the demand of high voltage, high current.Under high voltage, high current, arc characteristic and low-voltage there is very big difference,
Two interelectrode gases breakdown, free and induced phenomenon under forceful electric power field action occurs and acutely in advance than under low-voltage.
Therefore, under high voltage, high current, when contact disjunction, is easy to burn, or even is unable to disjunction.It goes out under high voltage, high current
Arc system also just becomes the technology of most critical in D.C. contactor.
It is all low pressure range that existing D.C. contactor, which is normally applied environment, and disjunction voltage is within 750V, arc quenching chamber structure
It is relatively easy, under 1500V voltage its arc-control device can not arc extinguishing, will cause the serious scaling loss of contactor.
Utility model content
For existing D.C. contactor in the prior art under 1500V voltage its arc-control device can not arc extinguishing the deficiencies of, this
Utility model will solve the problems, such as to be to provide one kind can high-voltage DC contactor arc-control device.
In order to solve the above technical problems, the technical solution adopted in the utility model is:
A kind of high-voltage DC contactor arc-control device of the utility model has arc-chutes part and permanent magnetism arc blow-out part, goes out
Arc chamber part includes arc extinguishing chamber enclosure, the arc-extinguish chamber being fastened on above arc extinguishing chamber enclosure 3, the fan for being respectively placed in two sides in arc-chutes
Palace arc extinguishing structure and arc liner plate；Two arc liner plates are set to labyrinth arc extinguishing structure entrance side；Permanent magnetism arc blow-out part is set to two sides
Between the arc extinguishing structure of labyrinth, correspond to moving contact and static contact disjunction position.
Labyrinth arc extinguishing structure is the maze lattice being made of multi-disc liner plate, is gone out by the outlet side insertion multi-disc of labyrinth arc extinguishing structure
Arc grid.
Arc liner plate is to form twice narrow slit arc extinguishing structure by four blocks of clay in arc-chutes two sides.
Permanent magnetism arc blow-out part includes the permanent magnet being installed in arc extinguishing chamber enclosure, insertion arc extinguishing chamber enclosure is interior and is adsorbed in use
The magnetic conductive board of magnet two sides.
Arc extinguishing grid pieces include forming copper grid, iron railings piece and insulating materials grid, and three kinds of grid are staggeredly placed, and are formed and are handed over
Wrong arc extinguishing space.
Three kinds of grid are staggeredly placed are as follows: insulating materials grid uses clay arc-chute, is one with labyrinth arc extinguishing structure
Body, copper arc extinguishing grid pieces are inserted into clay arc-chute, and iron arc extinguishing grid pieces are placed on the two sides of clay arc-chute.
Arc-chutes top arc-extinguish chamber is equipped with gas outlet.
The utility model has the advantages that and advantage:
1. the utility model generates because using permanent magnetism magnetic-quenching arc-extinguishing device and stablizes high-intensity magnetic field, monopolar operation voltage is reachable
1500V-1800V makes contactor can control big capacity load, no critical current, without pyrotoxin, and have small in size, the service life is long,
The advantages that compact-sized, part is processed relatively easily, and assembly efficiency is high.
2. the utility model two sides arc liner plate forms narrow slit structure, high-pressure space is formed, can be incited somebody to action using permanent magnet magnetic blow-out
Electric arc is quickly blown into labyrinth structure, and labyrinth structure is combined with various material grid, and grid is staggered that electric arc can be elongated and draws
Carefully, accelerate arc extinction, copper grid and clay material grid do not influence magnetic field caused by permanent magnet, and clay grid has very strong
Resistance to burning ability, copper material grid can faster cool down electric arc, and the irony grid far from magnetic field of permanent magnet end can play quiet again
The effect of contact run-on tab.
Detailed description of the invention
Fig. 1 is the utility model structure sectional view；
Fig. 2 is the Structure explosion diagram of the utility model.
1 is arc extinguishing chamber enclosure, and 2 be magnetic conductive board, and 3 be arc-extinguish chamber, and 4 be permanent magnet, and 5 be arc extinguishing grid pieces, and 6 be labyrinth arc extinguishing knot
Structure, 7 be arc liner plate, and 8 be static contact, and 9 be moving contact, and 10 be run-on tab.
Specific embodiment
The utility model is further elaborated with reference to the accompanying drawings of the specification.
As shown in Figure 1 and Figure 2, there is a kind of DC contactor arc-extinguisher of the utility model arc-chutes part and permanent magnetism to blow
Arc portion point, arc-chutes part includes arc extinguishing chamber enclosure 1, is fastened on 1 top arc-extinguish chamber 3 of arc extinguishing chamber enclosure, is respectively placed in arc-chutes
The labyrinth arc extinguishing structure 6 of interior two sides and native arc liner plate 7；Two arc liner plates 7 are set to 6 entrance side of labyrinth arc extinguishing structure；Permanent magnetism
Arc blow-out part is set between two sides labyrinth arc extinguishing structure 6, corresponds to moving contact and static contact disjunction position.
Labyrinth arc extinguishing structure 6 is the maze lattice being made of multi-disc liner plate, is inserted into multi-disc by the outlet side of labyrinth arc extinguishing structure 6
Arc extinguishing grid pieces 5.
Arc liner plate 7 is to form twice narrow slit arc extinguishing structure by four blocks of clay in arc-chutes two sides.
Permanent magnetism arc blow-out part includes the permanent magnet 4 being installed in arc extinguishing chamber enclosure 1, insertion arc extinguishing chamber enclosure 1 is interior and adsorbs
In the magnetic conductive board 2 with 4 two sides of magnet.
Arc extinguishing grid pieces 5 include forming copper grid, iron railings piece and insulating materials grid, and three kinds of grid are staggeredly placed, and are formed
Staggered arc extinguishing space.In the present embodiment, insulating materials grid uses clay arc-chute, is integrated with labyrinth arc extinguishing structure, copper
Arc extinguishing grid pieces are inserted into clay arc-chute, and iron arc extinguishing grid pieces are placed on the both sides of clay arc-chute；Arc-chutes top arc-extinguish chamber 3 is set
There is gas outlet.
The working principle of the utility model is as follows: magnetic field is oriented to static contact 8 and moving contact 9 by magnetic conductive board 2 by permanent magnet 4
Between, when static contact 8 and 9 disjunction of moving contact generate electric arc, electric arc is quick under the action of magnetic field and contact flowed through electric current
It is blown into the narrow slit arc extinguishing structure being made of arc liner plate 7, narrow slit arc extinguishing structure and relatively broad 6 phase of labyrinth arc extinguishing structure
It connects, so that electric arc is further speeded up in narrow slit structure because of high pressure, reduces the electric arc residence time, rapidly enter labyrinth arc extinguishing knot
In structure 6, electric arc is elongated in labyrinth structure and diameter attenuates, come into full contact in narrow arc gap channel with clay material and
Cooled, arc energy constantly reduces, and electric arc continues up, and by arc extinguishing grid pieces 5, electric arc is cut and cooling, the energy of electric arc
Amount continues to decline, and is thoroughly broken in certain point, arc extinction, and remaining electric arc is sprayed from the strip mouth of top arc-extinguish chamber 3, and
Arc distance is sprayed from very little.
The utility model generates because using permanent magnetism magnetic-quenching arc-extinguishing device and stablizes high-intensity magnetic field, no critical current, without pyrotoxin,
Two sides arc liner plate forms narrow slit structure, forms high-pressure space, electric arc quickly can be blown into labyrinth structure using permanent magnet magnetic blow-out；
Labyrinth structure is combined with various material grid, and grid is staggered that electric arc can be elongated and draws and attenuates, and accelerates arc extinction, copper grid
Piece and clay material grid do not influence magnetic field caused by permanent magnet, and clay grid has very strong resistance to burning ability, copper material grid
Electric arc can be faster cooled down, the irony grid far from magnetic field of permanent magnet end can play the role of static contact run-on tab again.
The utility model be it is a kind of can disjunction high voltage direct current arc-control device, solve existing series coil arc extinguishing and exist
Critical current be unable to disjunction circuit and traditional arc-chutes can not disjunction high voltage defect, design compared with similar products rationally,
Compact-sized, for spray arc distance from short, monopolar operation voltage can reach 1500V-1800V.
Claims (7)
1. a kind of high-voltage DC contactor arc-control device, it is characterised in that: have arc-chutes part and permanent magnetism arc blow-out part, arc extinguishing
Room part includes arc extinguishing chamber enclosure, the arc-extinguish chamber being fastened on above arc extinguishing chamber enclosure, the labyrinth for being respectively placed in two sides in arc-chutes
Arc extinguishing structure and arc liner plate；Two arc liner plates are set to labyrinth arc extinguishing structure entrance side；Permanent magnetism arc blow-out part is set to two sides fan
Between the arc extinguishing structure of palace, correspond to moving contact and static contact disjunction position.
2. high-voltage DC contactor arc-control device according to claim 1, it is characterised in that: labyrinth arc extinguishing structure is by more
The maze lattice that piece liner plate is constituted is inserted into multi-disc arc extinguishing grid pieces by the outlet side of labyrinth arc extinguishing structure.
3. high-voltage DC contactor arc-control device according to claim 1, it is characterised in that: arc liner plate is in arc-chutes
Two sides form twice narrow slit arc extinguishing structure by four blocks of clay.
4. high-voltage DC contactor arc-control device according to claim 1, it is characterised in that: permanent magnetism arc blow-out part includes peace
Loaded in arc extinguishing chamber enclosure permanent magnet, in insertion arc extinguishing chamber enclosure and be adsorbed in magnetic conductive board with magnet two sides.
5. high-voltage DC contactor arc-control device according to claim 1, it is characterised in that: arc extinguishing grid pieces include forming copper
Grid, iron railings piece and insulating materials grid, three kinds of grid are staggeredly placed, and form staggered arc extinguishing space.
6. high-voltage DC contactor arc-control device according to claim 5, it is characterised in that three kinds of grid are staggeredly put
Be set to: insulating materials grid uses clay arc-chute, is integrated with labyrinth arc extinguishing structure, and copper arc extinguishing grid pieces are inserted into clay arc-chute
In, iron arc extinguishing grid pieces are placed on the two sides of clay arc-chute.
7. high-voltage DC contactor arc-control device according to claim 1, it is characterised in that: arc-chutes top arc extinguishing is provide with
There is gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822220667.9U CN209104078U (en) | 2018-12-27 | 2018-12-27 | High-voltage DC contactor arc-control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822220667.9U CN209104078U (en) | 2018-12-27 | 2018-12-27 | High-voltage DC contactor arc-control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209104078U true CN209104078U (en) | 2019-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822220667.9U Active CN209104078U (en) | 2018-12-27 | 2018-12-27 | High-voltage DC contactor arc-control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411298A (en) * | 2018-12-27 | 2019-03-01 | 沈阳二三控制电器制造有限公司 | A kind of high-voltage DC contactor arc-control device |
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2018
- 2018-12-27 CN CN201822220667.9U patent/CN209104078U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411298A (en) * | 2018-12-27 | 2019-03-01 | 沈阳二三控制电器制造有限公司 | A kind of high-voltage DC contactor arc-control device |
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