CN206040582U - Arc extinguishing device and contains this device for moulded case circuit breaker - Google Patents
Arc extinguishing device and contains this device for moulded case circuit breaker Download PDFInfo
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- CN206040582U CN206040582U CN201621075978.5U CN201621075978U CN206040582U CN 206040582 U CN206040582 U CN 206040582U CN 201621075978 U CN201621075978 U CN 201621075978U CN 206040582 U CN206040582 U CN 206040582U
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- arc
- breaker
- control device
- arc extinguishing
- moving contact
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Abstract
The utility model relates to an arc extinguishing device and contains this device for moulded case circuit breaker, arc control device include the base, set up static contact on the base, arrange in proper order between the wall of both sides and along the motion pitch arc of moving contact in the lateral wall of static contact both sides, a plurality of setting with the moving contact of static contact looks adaptation, a pair of parallel arrangement arc extinguishing bars piece and setting be at the arc -extinguish chamber of arc extinguishing bars piece one end, moving contact and static contact between the electric arc that produces split into the short arc in arc extinguishing bars piece, later extinguish rapidly. Compared with the prior art, the utility model discloses in a plurality of arc extinguishing bars pieces arrange along the motion pitch arc of moving contact for all arc extinguishing bars pieces can both obtain abundant utilization, can divide disconnected trouble short -circuit current more quickly and effectively, adopt the arc -extinguish chamber to seal arc control device's one end simultaneously, prevent the gas leakage in the device, and the air -blowing that produces of electric arc is to arc extinguishing bars piece internal motion, thus quicker extinguished electric arc.
Description
Technical field
This utility model belongs to breaker of plastic casing technical field, is related to a kind of arc-control device for breaker of plastic casing and contains
There is the chopper of the device.
Background technology
Breaker of plastic casing in separating brake, as moving contact and static contact are during touch and separate, two contacts it
Between gap it is ascending, in the presence of high voltage, the dielectric in gap can be ionized and puncture, formed electric arc, electric arc shape
Cheng Hou, the heat of generation can be further exacerbated by medium ionization, expand electric arc, make the chopper cannot disconnecting circuit.In order to prevent this
One process, when chopper is designed, is mounted in two contacts in one arc extinguishing room, has many passages inside arc-chutes, and one
It is that, for subdividing the arc, two is the high pressure draught produced using high arc temperature, blows out electric arc by the channel nozzle of arc-chutes.
The arc quenching principle of breaker of plastic casing mainly has following several：Long arc arc quenching principle, short arc arc quenching principle and compound go
Ionic effect arc quenching principle.Generally, the arc-chutes of breaker of plastic casing are operated using short arc arc quenching principle, this
Plant arc-chutes to have the following disadvantages：
1st, the vertically aligned arrangement of multiple arc extinguishing grid pieces in arc extinguishing room, moving contact when closing with static contact, away from
From arc extinguishing grid pieces recently, it is after moving contact is fully opened, farthest apart from arc extinguishing grid pieces, therefore, in disjunction failed shorted electric current, move
Contact is gradually distance from static contact from make position, also can be more and more remote with the distance between arc extinguishing grid pieces, and arc extinguishing grid pieces are topmost
Several just electric arc cannot be sucked, so as to cannot subdividing the arc, reduce the effective rate of utilization of arc extinguishing grid pieces, while electric arc is difficult
To enter arc-chutes, make the breaking capacity of arc-chutes meet requirement；
2nd, arc-chutes are open space, and during disjunction failed shorted electric current, the air-blowing that electric arc heated air is produced is to surrounding point
Dissipate, cause arc extinguishing indoor gas to leak, be unfavorable for the extinguishing of electric arc, reduce disjunction effect；
3rd, direct current breaker of plastic casing is mostly to be improved to form on the basis of exchange breaker of plastic casing, and exchange plastic housing is broken
The arc-chutes of road device cannot be used directly for direct current breaker of plastic casing, and arc quenching effect is poor.
Utility model content
The purpose of this utility model is exactly to provide a kind of arc extinguishing efficiency to overcome the defect of above-mentioned prior art presence
The high arc-control device for breaker of plastic casing and the chopper containing the device.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of arc-control device for breaker of plastic casing, the device include base, the static contact being arranged on base and quiet
Moving contact that contact is adapted, a pair of parallel side wall for being arranged on static contact both sides, multiple it is arranged between two side and along dynamic
The motion camber line arc extinguishing grid pieces being arranged in order and the arc-extinguish chamber for being arranged on arc extinguishing grid pieces one end of contact, described moving contact with
The electric arc produced between static contact is divided into short arc in arc extinguishing grid pieces, rapid afterwards to extinguish.
Described moving contact is hinged with base, and described moving contact around pin joint the reciprocating rotation in the vertical plane.
Described arc extinguishing grid pieces are arranged on the surface of static contact.
Described multiple arc extinguishing grid pieces are arranged in parallel.
Described arc-extinguish chamber include a pair vertical parallel portions for vertically arranging and being parallel to each other, be arranged on it is vertically flat
The opening enlarging section of row portion one end and the end plate for being arranged on the vertical parallel portion other end and being connected with the side wall of corresponding side.Institute
In horn-like setting, two opening amplification units are less in one end spacing of vertical parallel portion, position for the two opening enlarging sections stated
It is larger in one end spacing of arc extinguishing grid pieces, be conducive to air-blowing to spread, the air-blowing produced in making breaking course is entered after converging together
In arc extinguishing grid pieces, and electric arc is blown into into arc extinguishing grid pieces using air-blowing, so as to faster extinguish electric arc.
Used as preferred technical scheme, described end plate is perpendicular with side wall.
Connecting plate is provided between the vertical parallel portion of described two.Two vertical parallel portions are connected to one by the connecting plate
Rise.
The arc-extinguish chamber otch being adapted with moving contact is offered on described connecting plate.The arc-extinguish chamber otch is prevented from working as
Moving contact when connecting plate is connected plate and stops.
Angle between two described opening enlarging sections is 2-50 °.
A kind of chopper containing the described arc-control device for breaker of plastic casing.
Operation principle of the present utility model is as follows：
When breaker of plastic casing separating brake, moving contact is separated with static contact, and the electric arc produced between two contacts is inhaled into arc extinguishing
In grid, electric arc is divided into into some segments (short arc) by arc extinguishing grid pieces, all formed on the arc extinguishing grid pieces of every segment one it is cloudy
Pole (cathode effect), the accumulation of pressure drop between so multiple arc extinguishing grid pieces enable total arc drop to reach and cannot make electricity again
The degree of source voltage pilot arc burning, so that realize arc extinguishing.
Compared with prior art, this utility model has the characteristics that：
1) multiple arc extinguishing grid pieces are arranged along the camber line that moves of moving contact, ensure that no matter moving contact is in closure
State or off-state, are consistent with the distance between arc extinguishing grid pieces so that all of arc extinguishing grid pieces can be accessed
Sufficiently utilize, jointly electric arc is cut and cooled down, it is thus possible to more quickly and effectively disjunction failed shorted electric current；
2) one end of arc-control device is closed using arc-extinguish chamber, the gas leakage in anti-locking apparatus, while ensure that point
During disconnected failed shorted electric current, the air-blowing that electric arc is produced is moved into arc extinguishing grid pieces, and electric arc is blown into arc extinguishing grid pieces using air-blowing,
So as to faster extinguish electric arc；
3) arc extinguishing speed is fast, and arc quenching effect is good, is used not only for direct current breaker of plastic casing, while directly can also apply
In exchange breaker of plastic casing, and significantly improve the ability of its disjunction failed shorted electric current.
Description of the drawings
Fig. 1 is the overall structure diagram of arc-control device in embodiment 1；
Fig. 2 is the structural representation of arc extinguishing grid pieces in embodiment 1；
Fig. 3 is the overlooking the structure diagram after arc-extinguish chamber and side wall are matched somebody with somebody in embodiment 1；
Description of symbols in figure：
It is 1 base, 2 static contacts, 3 moving contacts, 4 side walls, 5 arc extinguishing grid pieces, 6 arc-extinguish chambers, 7 vertically parallel
Portion, 8 opening enlarging sections, 9 end plates, 10 connecting plates, 11 arc-extinguish chamber otch.
Specific embodiment
This utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with this utility model
Implemented premised on technical scheme, given detailed embodiment and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
Embodiment 1：
A kind of chopper contains the arc-control device for breaker of plastic casing as shown in Figure 1, and the device includes base 1, sets
Put the static contact 2 on base 1, the moving contact 3 being adapted with static contact 2, a pair of parallel side wall for being arranged on 2 both sides of static contact
4th, it is multiple to be arranged between two side 4 and move the arc extinguishing grid pieces 5 and be arranged on arc extinguishing that camber line is arranged in order along moving contact 3
The arc-extinguish chamber 6 of 5 one end of grid, the electric arc produced between moving contact 3 and static contact 2 are divided into short arc in arc extinguishing grid pieces 5, it
It is rapid afterwards to extinguish.
Wherein, moving contact 3 is hinged with base 1, and moving contact 3 around pin joint the reciprocating rotation in the vertical plane.Arc extinguishing
Grid 5 is arranged on the surface of static contact 2.As shown in Fig. 2 multiple arc extinguishing grid pieces 5 are arranged in parallel.
As shown in figure 3, arc-extinguish chamber 6 includes the vertical parallel portion 7 for vertically arranging and being parallel to each other for a pair, is arranged on
The opening enlarging section 8 of 7 one end of parallel portion and 7 other end of vertical parallel portion and 4 phase of side wall with corresponding side is arranged on vertically
End plate 9 even.Connecting plate 10 is provided between two vertical parallel portions 7.Offer on connecting plate 10 and going out that moving contact 3 is adapted
Arc cover otch 11.Angle between two opening enlarging sections 8 is 15 °.
When breaker of plastic casing separating brake, moving contact 3 is separated with static contact 2, and the electric arc produced between two contacts is inhaled into and goes out
In arc grid 5, electric arc is divided into into some segments by arc extinguishing grid pieces 5, all formed on the arc extinguishing grid pieces 5 of every segment one it is cloudy
Pole, between so multiple arc extinguishing grid pieces 5, the accumulation of pressure drop enables total arc drop to reach cannot tie up again supply voltage
The degree of arc burning is held, so as to realize arc extinguishing.
Embodiment 2：
In the present embodiment, the angle between two opening enlarging sections 8 is 2 °, and remaining is with embodiment 1.
Embodiment 3：
In the present embodiment, the angle between two opening enlarging sections 8 is 50 °, and remaining is with embodiment 1.
The above-mentioned description to embodiment is to be understood that for ease of those skilled in the art and use practicality
It is new.Person skilled in the art obviously easily can make various modifications to these embodiments, and here is illustrated
General Principle be applied in other embodiment without through performing creative labour.Therefore, this utility model is not limited to above-mentioned
Embodiment, those skilled in the art according to announcement of the present utility model, the improvement made without departing from this utility model category and
Modification all should be within protection domain of the present utility model.
Claims (9)
1. a kind of arc-control device for breaker of plastic casing, it is characterised in that the device includes base (1), is arranged on base (1)
On static contact (2), the moving contact (3) being adapted with static contact (2), a pair of parallel side wall for being arranged on static contact (2) both sides
(4) it is, multiple to be arranged between two side (4) and the arc extinguishing grid pieces (5) that are arranged in order of motion camber line along moving contact (3) and set
The arc-extinguish chamber (6) in arc extinguishing grid pieces (5) one end is put, the electric arc produced between described moving contact (3) and static contact (2) is in arc extinguishing
Short arc is divided in grid (5), it is rapid afterwards to extinguish.
2. a kind of arc-control device for breaker of plastic casing according to claim 1, it is characterised in that described moving contact
(3) be hinged with base (1), and described moving contact (3) around pin joint the reciprocating rotation in the vertical plane.
3. a kind of arc-control device for breaker of plastic casing according to claim 2, it is characterised in that described arc-chute
Piece (5) is arranged on the surface of static contact (2).
4. a kind of arc-control device for breaker of plastic casing according to claim 3, it is characterised in that described multiple to go out
Arc grid (5) is arranged in parallel.
5. a kind of arc-control device for breaker of plastic casing according to claim 1, it is characterised in that described arc-extinguish chamber
(6) including the vertical parallel portion (7) for vertically arranging and being parallel to each other for a pair, be arranged on vertical parallel portion (7) one end
Opening enlarging section (8) and the end plate (9) for being arranged on vertical parallel portion (7) other end and being connected with the side wall (4) of corresponding side.
6. a kind of arc-control device for breaker of plastic casing according to claim 5, it is characterised in that described two erect
Connecting plate (10) is provided between straight parallel portion (7).
7. a kind of arc-control device for breaker of plastic casing according to claim 6, it is characterised in that described connecting plate
(10) the arc-extinguish chamber otch (11) being adapted with moving contact (3) is offered on.
8. a kind of arc-control device for breaker of plastic casing according to claim 5, it is characterised in that described two open
Angle between mouth enlarging section (8) is 2-50 °.
9. a kind of chopper of the arc-control device for breaker of plastic casing containing as described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621075978.5U CN206040582U (en) | 2016-09-23 | 2016-09-23 | Arc extinguishing device and contains this device for moulded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621075978.5U CN206040582U (en) | 2016-09-23 | 2016-09-23 | Arc extinguishing device and contains this device for moulded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206040582U true CN206040582U (en) | 2017-03-22 |
Family
ID=58296598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621075978.5U Active CN206040582U (en) | 2016-09-23 | 2016-09-23 | Arc extinguishing device and contains this device for moulded case circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206040582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252178A (en) * | 2016-09-23 | 2016-12-21 | 德力西电气有限公司 | A kind of arc-control device for breaker of plastic casing and the chopper containing this device |
-
2016
- 2016-09-23 CN CN201621075978.5U patent/CN206040582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252178A (en) * | 2016-09-23 | 2016-12-21 | 德力西电气有限公司 | A kind of arc-control device for breaker of plastic casing and the chopper containing this device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |