CN106449327A - Arc extinguishing cover for arc extinguishing chamber - Google Patents
Arc extinguishing cover for arc extinguishing chamber Download PDFInfo
- Publication number
- CN106449327A CN106449327A CN201610843419.2A CN201610843419A CN106449327A CN 106449327 A CN106449327 A CN 106449327A CN 201610843419 A CN201610843419 A CN 201610843419A CN 106449327 A CN106449327 A CN 106449327A
- Authority
- CN
- China
- Prior art keywords
- arc
- extinguish chamber
- chutes
- arc extinguishing
- base plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention relates to an arc extinguishing cover for an arc extinguishing chamber. The arc extinguishing cover is arranged at one end of the arc extinguishing chamber and comprises an arc extinguishing cover bottom plate and an arc extinguishing cover main body, wherein the arc extinguishing cover main body is arranged on the arc extinguishing bottom plate, the arc extinguishing cover main body comprises a pair of parallel parts, opening amplification parts and end plates, the pair of parallel parts are arranged on the arc extinguishing cover bottom plate and are parallel to each other, each opening amplification part is arranged at one end of each parallel part, the end plates are arranged at the other ends of the parallel parts, air blowing generated by an arc is converged between the pair of parallel parts of the arc extinguishing cover and then passes through the opening amplification part to blow the arc into the arc extinguishing chamber, and the arc is extinguished in the arc extinguishing chamber. Compared with the prior art, the arc extinguishing cover has the advantages that one end of the arc extinguishing chamber is closed by the arc extinguishing cover, gas in the arc extinguishing chamber can be prevented from being leaked, the opening amplification parts are beneficial for diffusing air blowing and improving an air-blowing effect, so that air blowing is more effectively utilized, the arc is blown into an arc extinguishing chute, and the arc is more rapidly blown out.
Description
Technical field
The invention belongs to breaker of plastic casing technical field, is related to a kind of arc-extinguish chamber for arc-chutes.
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 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
Subdividing the arc is used to, and two is the high pressure draught for producing using high arc temperature, electric arc is blown out 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, arc-chutes are that open space, during disjunction failed shorted electric current, the air-blowing that electric arc heated air is produced divides to surrounding
Dissipate, cause arc extinguishing indoor gas to leak, be unfavorable for the extinguishing of electric arc, reduce disjunction effect；
2nd, the vertically aligned arrangement of multiple arc extinguishing grid pieces in arc extinguishing room, moving contact when closing with static contact, away from
Nearest from arc extinguishing grid pieces, 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；
3rd, direct current breaker of plastic casing is mostly to improve on the basis of exchange breaker of plastic casing to form, 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.
Content of the invention
The purpose of the present invention is exactly to provide one kind and can improve arc extinguishing to overcome the defect of above-mentioned prior art presence
The arc-extinguish chamber for arc-chutes of room disjunction failed shorted current efficiency.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of arc-extinguish chamber for arc-chutes, the arc-extinguish chamber is arranged on one end of arc-chutes, and described arc-extinguish chamber includes to go out
Arc cover base plate and the arc-extinguish chamber main body being arranged on arc-extinguish chamber base plate, the arc-extinguish chamber main body includes a pair to be arranged on arc-extinguish chamber bottom
On the plate and parallel portion being parallel to each other, the opening enlarging section for being arranged on parallel portion one end and it is arranged on the end of the parallel portion other end
Electric arc, after the air-blowing that electric arc is produced is converged between a pair of parallel portion of arc-extinguish chamber, is blown into through opening enlarging section and goes out by plate together
In arc chamber, electric arc is off in arc extinguishing room.
Described arc-extinguish chamber base plate is H type arc-extinguish chamber base plate, and described parallel portion is along the length direction of H type arc-extinguish chamber base plate
It is arranged on H type arc-extinguish chamber base plate.
Described arc-extinguish chamber body normal is arranged on arc-extinguish chamber base plate.
Angle between two described opening enlarging sections is 0-90 °, but is not 0.
As preferred technical scheme, the angles between two described opening enlarging sections are 5 °, 10 °, 13 °, 20 ° or
One kind in 30 °.
Described arc-chutes include that arc-chutes base, the static contact being arranged on arc-chutes base are adapted with static contact
Moving contact, a pair of parallel side wall for being arranged on static contact both sides and multiple arc extinguishing grid pieces being arranged between two side, institute
The arc-extinguish chamber that states is arranged on one end of arc extinguishing grid pieces.
Described moving contact is hinged with arc-chutes base, and described moving contact is reciprocal in vertical plane around pin joint
Rotate.
Described multiple arc extinguishing grid pieces are arranged in order along the camber line that moves of moving contact, ensure that no matter moving contact is in closure
State or off-state, are all 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.
Described end plate is fixedly connected with the side wall of corresponding side.
Described end plate is orthogonal with the side wall of corresponding side.
The material of described arc-extinguish chamber is nylon or the one kind in acetal resin.
In the present invention, two described opening enlarging sections are in horn-like setting, and two opening amplification units are in parallel portion
One end spacing is less, larger positioned at one end spacing of arc extinguishing grid pieces, is conducive to air-blowing to spread, and makes the air-blowing for producing in breaking course
Entered in arc extinguishing grid pieces after convergence together, and using air-blowing, electric arc is blown into arc extinguishing grid pieces, so as to faster extinguish electric arc.
The operation principle of the present invention is as follows：
When breaker of plastic casing separating brake, moving contact is separated with static contact, produces electric arc, the gas that electric arc is produced between two contacts
Blowing after converging between a pair of parallel portion of arc-extinguish chamber, arc-chutes is entered through opening enlarging section, and electric arc is blown into arc extinguishing together
Interior, the electric arc in arc extinguishing room is inhaled in arc extinguishing grid pieces, by arc extinguishing grid pieces, electric arc is divided into some segments (short arc), every
A negative electrode (cathode effect) is all formed on the arc extinguishing grid pieces of segment, and so between multiple arc extinguishing grid pieces, the accumulation of pressure drop is caused always
Arc drop can reach cannot make again supply voltage pilot arc burn degree, so as to realize arc extinguishing.
Compared with prior art, the invention has the characteristics that：
1) using arc-extinguish chamber, one end of arc-chutes is closed, can not only prevents the gas in arc extinguishing room from leaking, while energy
Enough ensure in disjunction failed shorted electric current, the air-blowing that electric arc is produced is moved into arc extinguishing grid pieces, and is blown electric arc using air-blowing
Enter arc extinguishing grid pieces, so as to faster extinguish electric arc, disjunction failed shorted electric current；
2) opening enlarging section is conducive to air-blowing to spread, and strengthens the effect of air-blowing, so as to more efficiently using air-blowing, by electricity
Arc blows into arc extinguishing grid pieces, and then faster extinguishes electric arc；
3) efficiency of arc-chutes disjunction failed shorted electric current can be improved, direct current breaker of plastic casing is applicable not only to, while
Exchange breaker of plastic casing can also be directly applied to.
Description of the drawings
Fig. 1 is the overall structure diagram of arc-extinguish chamber in embodiment 1；
Fig. 2 is the overlooking the structure diagram of arc-extinguish chamber in embodiment 1；
Fig. 3 is the overall structure diagram in embodiment 1 after the assembling of arc-extinguish chamber and arc-chutes；
Fig. 4 is the overlooking the structure diagram in embodiment 1 after the assembling of arc-extinguish chamber and arc-chutes；
In figure description of symbols：
1 arc-extinguish chamber, 2 arc-chutes, 3 arc-extinguish chamber base plates, 4 parallel portion, 5 opening enlarging sections, 6 end plates, 7
Arc-chutes base, 8 static contacts, 9 moving contacts, 10 side walls, 11 arc extinguishing grid pieces.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention be not limited to
Following embodiments.
Embodiment 1：
A kind of arc-extinguish chamber for arc-chutes as shown in Figure 1-2, the arc-extinguish chamber 1 is arranged on one end of arc-chutes 2, arc extinguishing
The arc-extinguish chamber main body that cover 1 includes arc-extinguish chamber base plate 3 and is arranged on arc-extinguish chamber base plate 3, the arc-extinguish chamber main body includes a pair to set
The parallel portion 4 that puts on arc-extinguish chamber base plate 3 and be parallel to each other, the opening enlarging section 5 for being arranged on 4 one end of parallel portion and it is arranged on
The end plate 6 of 4 other end of parallel portion, after the air-blowing that electric arc is produced is converged between a pair of parallel portion 4 of arc-extinguish chamber 1, puts through opening
Electric arc is blown in arc-chutes 2 by big portion 5 together, and electric arc is off in arc-chutes 2.
Wherein, arc-extinguish chamber base plate 3 is that H type arc-extinguish chamber base plate, parallel portion 4 is arranged along the length direction of H type arc-extinguish chamber base plate
On H type arc-extinguish chamber base plate.Arc-extinguish chamber body normal is arranged on arc-extinguish chamber base plate 3.Angle between two opening enlarging sections 5
For 10 °.
As shown in Figure 3-4, arc-chutes 2 include arc-chutes base 7, the static contact 8 being arranged on arc-chutes base 7 with quiet
Moving contact 9 that contact 8 is adapted, a pair of parallel side wall 10 for being arranged on 8 both sides of static contact and multiple it is arranged on two side 10
Between arc extinguishing grid pieces 11, arc-extinguish chamber 1 is arranged on one end of arc extinguishing grid pieces 11.
Wherein, moving contact 9 is hinged with arc-chutes base 7, and moving contact 9 around pin joint reciprocating rotary in the vertical plane
Dynamic.Multiple arc extinguishing grid pieces 11 are arranged in order along the camber line that moves of moving contact 9.End plate 6 is fixedly connected with the side wall 10 of corresponding side,
And end plate 6 is orthogonal with the side wall 10 of corresponding side.
When breaker of plastic casing separating brake, moving contact 9 is separated with static contact 8, produces electric arc between two contacts, and electric arc is produced
After air-blowing is converged between a pair of parallel portion 4 of arc-extinguish chamber 1, arc-chutes 2 are entered through opening enlarging section 5, and electric arc is blown together
Enter in arc-chutes 2, the electric arc in arc-chutes 2 is inhaled in arc extinguishing grid pieces 11, by arc extinguishing grid pieces 11, electric arc is divided into some little
Section, all forms a negative electrode on the arc extinguishing grid pieces 11 of every segment, and so between multiple arc extinguishing grid pieces 11, the accumulation of pressure drop is caused
Total arc drop can reach the degree that supply voltage pilot arc cannot be made again to burn, so as to realize arc extinguishing.
Embodiment 2：
In the present embodiment, the angle between two opening enlarging sections 5 is 90 °, and remaining is with embodiment 1.
Embodiment 3：
In the present embodiment, the angle between two opening enlarging sections 5 is 5 °, and remaining is with embodiment 1.
Embodiment 4：
In the present embodiment, the angle between two opening enlarging sections 5 is 13 °, and remaining is with embodiment 1.
Embodiment 5：
In the present embodiment, the angle between two opening enlarging sections 5 is 20 °, and remaining is with embodiment 1.
Embodiment 6：
In the present embodiment, the angle between two opening enlarging sections 5 is 30 °, 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 invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied to without through performing creative labour in other embodiment.Therefore, the invention is not restricted to above-described embodiment, ability
Field technique personnel are according to the announcement of the present invention, and the improvement that is made without departing from scope and modification all should be the present invention's
Within protection domain.
Claims (10)
1. a kind of arc-extinguish chamber for arc-chutes, the arc-extinguish chamber (1) is arranged on one end of arc-chutes (2), it is characterised in that described
Arc-extinguish chamber (1) include arc-extinguish chamber base plate (3) and the arc-extinguish chamber main body that is arranged on arc-extinguish chamber base plate (3), arc-extinguish chamber master
Body includes the parallel portion (4) for being arranged on arc-extinguish chamber base plate (3) above and being parallel to each other a pair, is arranged on opening for parallel portion (4) one end
Mouthful enlarging section (5) and the end plate (6) of parallel portion (4) other end is arranged on, the air-blowing that electric arc is produced is at a pair of arc-extinguish chamber (1)
After converging between parallel portion (4), electric arc is blown into together in arc-chutes (2) through opening enlarging section (5), electric arc is in arc-chutes (2)
Inside it is off.
2. a kind of arc-extinguish chamber for arc-chutes according to claim 1, it is characterised in that described arc-extinguish chamber base plate
(3) it is H type arc-extinguish chamber base plate, described parallel portion (4) is arranged on H type arc-extinguish chamber bottom along the length direction of H type arc-extinguish chamber base plate
On plate.
3. a kind of arc-extinguish chamber for arc-chutes according to claim 2, it is characterised in that described arc-extinguish chamber main body is hung down
Directly it is arranged on arc-extinguish chamber base plate (3).
4. a kind of arc-extinguish chamber for arc-chutes according to claim 3, it is characterised in that two described openings amplify
Angle between portion (5) is 0-90 °, but is not 0.
5. a kind of arc-extinguish chamber for arc-chutes according to claim 4, it is characterised in that two described openings amplify
Angle between portion (5) is 5 °, 10 °, 13 °, the one kind in 20 ° or 30 °.
6. a kind of arc-extinguish chamber for arc-chutes according to claim 2, it is characterised in that described arc-chutes (2) bag
Include arc-chutes base (7), moving contact that the static contact (8) being arranged on arc-chutes base (7) is adapted with static contact (8)
(9), a pair of parallel side wall (10) for being arranged on static contact (8) both sides and multiple arc-chutes being arranged between two side (10)
Piece (11), described arc-extinguish chamber (1) is arranged on one end of arc extinguishing grid pieces (11).
7. a kind of arc-extinguish chamber for arc-chutes according to claim 6, it is characterised in that described moving contact (9) with
Arc-chutes base (7) is hinged, and described moving contact (9) around pin joint reciprocating rotation in the vertical plane.
8. a kind of arc-extinguish chamber for arc-chutes according to claim 7, it is characterised in that described multiple arc extinguishing grid pieces
(11) the motion camber line along moving contact (9) is arranged in order.
9. a kind of arc-extinguish chamber for arc-chutes according to claim 6, it is characterised in that described end plate (6) and phase
The side wall (10) of side is answered to be fixedly connected.
10. a kind of arc-extinguish chamber for arc-chutes according to claim 9, it is characterised in that described end plate (6) and phase
Answer the side wall (10) of side orthogonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843419.2A CN106449327A (en) | 2016-09-23 | 2016-09-23 | Arc extinguishing cover for arc extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610843419.2A CN106449327A (en) | 2016-09-23 | 2016-09-23 | Arc extinguishing cover for arc extinguishing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106449327A true CN106449327A (en) | 2017-02-22 |
Family
ID=58165936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610843419.2A Pending CN106449327A (en) | 2016-09-23 | 2016-09-23 | Arc extinguishing cover for arc extinguishing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106449327A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783447A (en) * | 2017-03-22 | 2017-05-31 | 德力西电气有限公司 | A kind of circuit breaker forced extinguisher |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6248970B1 (en) * | 1999-11-05 | 2001-06-19 | Siemens Energy & Automation, Inc. | ARC chute for a molded case circuit breaker |
| CN2479620Y (en) * | 2001-06-01 | 2002-02-27 | 南寅 | Breaker arc-extinguishing chamber with insulating baffle plate |
| CN1770351A (en) * | 2004-10-21 | 2006-05-10 | Ls产电株式会社 | Arc extinguisher assembly for mould cased circuit breaker |
| CN201754394U (en) * | 2010-07-16 | 2011-03-02 | 厦门宏美电子有限公司 | Modified circuit breaker of arc extinguishing device |
| CN102881492A (en) * | 2012-09-25 | 2013-01-16 | 浙江天正电气股份有限公司 | Air-blowing arcing shield |
| CN203250707U (en) * | 2013-03-21 | 2013-10-23 | 浙江正泰电器股份有限公司 | Grid arc-extinguishing chamber for low-voltage circuit breaker |
| CN204189747U (en) * | 2014-09-05 | 2015-03-04 | 浙江正泰电器股份有限公司 | Breaker contact system |
| CN206040581U (en) * | 2016-09-23 | 2017-03-22 | 德力西电气有限公司 | A arc -extinguish chamber for explosion chamber |
-
2016
- 2016-09-23 CN CN201610843419.2A patent/CN106449327A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6248970B1 (en) * | 1999-11-05 | 2001-06-19 | Siemens Energy & Automation, Inc. | ARC chute for a molded case circuit breaker |
| CN2479620Y (en) * | 2001-06-01 | 2002-02-27 | 南寅 | Breaker arc-extinguishing chamber with insulating baffle plate |
| CN1770351A (en) * | 2004-10-21 | 2006-05-10 | Ls产电株式会社 | Arc extinguisher assembly for mould cased circuit breaker |
| CN201754394U (en) * | 2010-07-16 | 2011-03-02 | 厦门宏美电子有限公司 | Modified circuit breaker of arc extinguishing device |
| CN102881492A (en) * | 2012-09-25 | 2013-01-16 | 浙江天正电气股份有限公司 | Air-blowing arcing shield |
| CN203250707U (en) * | 2013-03-21 | 2013-10-23 | 浙江正泰电器股份有限公司 | Grid arc-extinguishing chamber for low-voltage circuit breaker |
| CN204189747U (en) * | 2014-09-05 | 2015-03-04 | 浙江正泰电器股份有限公司 | Breaker contact system |
| CN206040581U (en) * | 2016-09-23 | 2017-03-22 | 德力西电气有限公司 | A arc -extinguish chamber for explosion chamber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783447A (en) * | 2017-03-22 | 2017-05-31 | 德力西电气有限公司 | A kind of circuit breaker forced extinguisher |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |