CN105845524A - Arc-extinguishing exhaust system for miniature circuit breaker - Google Patents
Arc-extinguishing exhaust system for miniature circuit breaker Download PDFInfo
- Publication number
- CN105845524A CN105845524A CN201610375236.2A CN201610375236A CN105845524A CN 105845524 A CN105845524 A CN 105845524A CN 201610375236 A CN201610375236 A CN 201610375236A CN 105845524 A CN105845524 A CN 105845524A
- Authority
- CN
- China
- Prior art keywords
- arc
- row
- extinguishing
- exhaust
- dividing 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
-
- 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)
- Breakers (AREA)
Abstract
The invention relates to an electric appliance of a low-voltage circuit terminal, and in particular relates to an arc-extinguishing exhaust system for a miniature circuit breaker. The technical scheme adopted in the invention is as follows: the arc-extinguishing exhaust system for the miniature circuit breaker is characterized in that an intermediate clapboard is arranged between a base and an upper cover and positioned at the exhaust outlet of an arc-extinguishing chamber; the exhaust outlet is divided into two respectively including a first exhaust outlet and a second exhaust outlet through the intermediate clapboard; a first clapboard and a second clapboard are respectively arranged between the intermediate clapboard and the upper cover and between the base and the upper cover; the first clapboard and the second clapboard are arranged to be respectively close to the first exhaust outlet and the second exhaust outlet; and a first exhaust through groove and a second exhaust through groove are respectively arranged on the first clapboard and the second clapboard. By adopting the scheme, the disadvantages in the prior art are overcome; and the novel arc-extinguishing exhaust system for the miniature circuit breaker, which is good in spatial arrangement and arc-extinguishing exhaust effect and free from bursting, is provided.
Description
Technical field
The present invention relates to a kind of low-voltage circuit terminal appliance, the arc extinguishing gas extraction system of a kind of miniature circuit breaker.
Background technology
Chopper arc baffle plate only has upper and lower two parts now, the opening of arc baffle plate or groove are arranged on corresponding with arc-chutes centre position, during disjunction, ionized gas and electric arc are discharged in the middle of arc-chutes, arc-chutes upper and lower both sides arc extinguishing is uneven, ionized gas discharge after because of one air vent of only one of which surge chamber or two surge chambers of two air vents but pressure is inconsistent causes interiors of products local pressure big and cause product to burst phenomenon, and charged particle and gas are restriked phenomenon in surge chamber, or there are electric arc or charged particle when discharging, affect equipment personal security.And product breaking capacity is low, arranging unreasonable, volume is big.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, it is provided that a kind of space layout is good, arc extinguishing good exhaust effect, the arc extinguishing gas extraction system of the novel miniature circuit breaker that will not burst.
nullRealize above-mentioned purpose，The present invention adopts the following technical scheme that，A kind of arc extinguishing gas extraction system of miniature circuit breaker，Include base、Arc-chutes and upper cover，It is characterized in that: between described base and upper cover and be positioned at the exhaust ports of arc-chutes and be provided with central dividing plate，Central dividing plate is arranged to upper and lower two air vent and is respectively first exhaust outlet and second exhaust outlet，The first dividing plate and second partition it is respectively arranged with between described central dividing plate and base and upper cover，First dividing plate and second partition press close to first exhaust outlet and the second exhaust outlet setting of correspondence respectively，First exhaust groove and second exhaust groove it is respectively arranged with on described first dividing plate and second partition，It is provided with the first surge chamber between described central dividing plate and upper cover and after being positioned at the first dividing plate，The lower section of the first surge chamber is provided with first exhaust passage，The second surge chamber it is provided with after being positioned at second partition between described central dividing plate and base，The side of the second surge chamber is provided with the second buffer channel.
By using such scheme, the present invention can well be buffered the high temperature and high pressure gas after arc-chutes by two surge chambers, owing to two surge chambers become spatial arrangement, described in chopper, it is exaggerated cushion space as far as possible, very effective make use of in chopper internal only space, two other surge chamber is respectively arranged with the air vent of correspondence, such good exhaust effect, and reduces the pressure in product.
The further setting of the present invention is: described central dividing plate is positioned at the setting of upper cover side and is arranged at intervals with projection, adjacent projection forms groove, cover on described and be arranged at intervals with boss, adjacent lands forms groove, projection shifts to install with boss, the top of projection is conflicted in the groove between adjacent lands, the top of boss is conflicted in the groove between adjacent projection, the top of each groove forms the first exhaust groove of Heterogeneous Permutation after being blocked by conflict, it is provided with catch after being positioned at first exhaust groove on described central dividing plate, cover on described and be provided with the baffle plate interted with catch overlapping, catch forms baffle wall with baffle fit, the first surge chamber is constituted between first exhaust groove and baffle wall, baffle wall is provided with the installation cavity disposed for breaker connecting terminal relative to the opposite side of the first surge chamber.
By using such scheme, the structure that can make first exhaust groove is more reasonable, makes the distance between adjacent exhaust groove strengthen, and divided electric arc so can well be prevented to be reunited and form relatively long arc damage circuit breaker internal device.Binding post finally can well be protected not by arc through or scaling loss.
Further being arranged so that on described base of the present invention is arranged at intervals with long projection, long recess is formed between adjacent long projection, conflict on central dividing plate so that groove forms second exhaust groove in the top of long projection, being provided with through hole on described central dividing plate, this through hole makes the first surge chamber and the through setting of the second surge chamber.First surge chamber and the through setting of the second surge chamber make the first surge chamber and the second surge chamber free flow of gas, so that the first surge chamber and the second surge chamber pressure are equal, it is to avoid two surge chamber pressure is unequal to be caused local pressure excessive and burst phenomenon.
By using such scheme, make to be also equipped with at second exhaust preventing divided electric arc to be reunited the aerofluxus groove forming relatively long arc damage circuit breaker internal device.
Further being arranged so that on described base of the present invention is arranged at intervals with long projection, long recess is formed between adjacent long projection, conflict on central dividing plate plate so that groove forms second exhaust groove in the top of long projection, it is provided with first and second liang of row's arc baffle plates in the second surge chamber on described base and after being positioned at second exhaust port, conflict with the side of central dividing plate respectively and arrange in the top of two row's arc baffle plates, two row's arc baffle-plate misplacements arrange and have the interval of between two row's arc baffle plates, it is provided with metal arc chute at the interval location of described two row's arc baffle plates, it is provided with small through hole on metal arc chute.
By using such scheme, the electric arc by second exhaust groove can well be allowed again to be split by first and second liang of row's arc baffle plates and metal arc chute, make internal arc and the steady decrease of charged gas simultaneously, the most substantially can be arc extinction, the temperature of gas also declines a lot, can well prevent air heat from puncturing and cause arc reignition to cause product explosion accident.
The present invention is finally arranged so that described first row extinguishing arc baffle plate is arranged near second exhaust groove, described second row extinguishing arc baffle plate upper and lower two panels extinguishing arc baffle plate extends setting, the two ends of described metal arc chute carry out spacing by the extension of second row extinguishing arc baffle plate upper and lower two panels extinguishing arc baffle plate, the Pao Hu road between Pao Hu road and second row extinguishing arc baffle plate between described first row extinguishing arc baffle plate shifts to install, described second surge chamber and the through setting in region installing electrical apparatus release of chopper.
By using such scheme, the installation that can make metal arc chute becomes convenient, the Pao Hu road between Pao Hu road and second row extinguishing arc baffle plate between the most described first row extinguishing arc baffle plate shifts to install, described second surge chamber and the through setting in region installing electrical apparatus release of chopper, such purpose makes subdividing the arc effect more preferable, additionally just in case the high temperature and high pressure gas pressure in the second surge chamber is too high, gas so can well be made to enter the region installing electrical apparatus release of chopper.Thus reduce pressure, improve electric arc or charged gas exit velocity.
Below in conjunction with the accompanying drawings the present invention is described further.
Accompanying drawing explanation
Fig. 1 is the structure chart that embodiment of the present invention reflection central dividing plate coordinates towards upper cover side with arc-chutes；
Fig. 2 is the structure chart that embodiment of the present invention reflection base coordinates with arc-chutes；
Fig. 3 is the axonometric chart of embodiment of the present invention metal arc chute；
Fig. 4 is that the embodiment of the present invention reflects the central dividing plate axonometric chart towards upper cover side；
Fig. 5 is that the embodiment of the present invention reflects the central dividing plate axonometric chart towards base side；
Fig. 6 is the axonometric chart of embodiment of the present invention upper cover；
Fig. 7 is the axonometric chart of embodiment of the present invention base；
Fig. 8 is the phantom of embodiment of the present invention reflection metal arc chute；
Fig. 9 is the phantom of embodiment of the present invention reflection central dividing plate through hole.
Detailed description of the invention
nullAs shown in Fig. 1 Fig. 9，A kind of arc extinguishing gas extraction system of miniature circuit breaker，Include base 1、Arc-chutes 2 and upper cover 3，In the present embodiment，Between described base 1 and upper cover 2 and be positioned at the air vent 21 of arc-chutes 2 and be provided with central dividing plate 4，4 air vents of central dividing plate are arranged to upper and lower two and are respectively first exhaust outlet 211 and second exhaust outlet 212，It is provided with between described central dividing plate 4 and base 1 and upper cover 3 and is respectively arranged with the first dividing plate 5 and second partition 6，First dividing plate 5 and second partition 6 press close to first exhaust outlet 211 and second exhaust outlet 212 setting of correspondence respectively，It is respectively arranged with first exhaust groove 51 and second exhaust groove 61 on described first dividing plate 5 and second partition 6，It is provided with the first surge chamber 7 between described central dividing plate 4 and upper cover 3 and after being positioned at the first dividing plate 5，The lower section of the first surge chamber 7 is provided with first exhaust passage 71，The second surge chamber 8 it is provided with after being positioned at second partition 6 between described central dividing plate 4 and base 1，The side of the second surge chamber 8 is provided with second exhaust passage 81.By using such scheme, the present invention can well be buffered the high temperature and high pressure gas after arc-chutes 2 by two surge chambers, owing to two surge chambers become spatial arrangement, described in chopper, it is exaggerated cushion space as far as possible, very effective make use of in chopper internal only space, two other surge chamber is respectively arranged with the air vent of correspondence, such good exhaust effect.
nullIn embodiments of the present invention，Described central dividing plate 4 is positioned at the setting of upper cover 3 side and is arranged at intervals with projection 41，Adjacent projection 41 forms groove 42，It is arranged at intervals with boss 31 on described upper cover 3，Adjacent lands 31 forms groove 32，Projection 41 shifts to install with boss 31，Conflict in the groove 32 between adjacent lands 31 in the top of projection 41，Conflict in the groove 42 between adjacent projection 41 in the top of boss 31，Each groove 32、The top of 42 forms the first exhaust groove 51 of Heterogeneous Permutation after being blocked by conflict，It is provided with catch 43 after being positioned at first exhaust groove 211 on described central dividing plate 4，The baffle plate 33 interted with catch 43 overlapping it is provided with on described upper cover 3，Catch 43 and baffle plate 33 cooperatively form baffle wall，The first surge chamber 7 is constituted between first exhaust groove 51 and baffle wall，Baffle wall is provided with the installation cavity 44 disposed for breaker connecting terminal relative to the opposite side of the first surge chamber 7；By using such scheme, the structure that can make first exhaust groove 51 is more reasonable, makes the distance between adjacent exhaust groove 51 strengthen, and divided electric arc so can well be prevented from newly to be combined together to form relatively long arc damage circuit breaker internal device.Binding post finally can well be protected not struck off by electric arc.
In embodiments of the present invention, long projection 11 it is arranged at intervals with on described base 1, long recess 12 is formed between adjacent long projection 11, conflict on central dividing plate 4 so that groove 12 forms second exhaust groove 61 in the top of long projection 11, so make to be also equipped with at second exhaust preventing divided electric arc to be combined together to form relatively long arc from newly, it is provided with through hole 45 on described central dividing plate 4, this through hole 45 makes the first surge chamber 7 and the second through setting of surge chamber 8, and the pressure being so conducive to two surge chambers is identical.Prevent from buffering and burst because pressure imbalance causes product local pressure big.
In embodiments of the present invention, it is provided with first and second liang of row's arc baffle plates 13,14 in the second surge chamber 8 on described base 1 and after being positioned at second exhaust port 212, conflict with the side of central dividing plate 4 respectively and arrange in the top of two row's arc baffle plates 13,14, two row's arc baffle plates 13,14 shift to install and have the interval of between two row's arc baffle plates 13,14, it is provided with metal arc chute 15 at the interval location of described two row's arc baffle plates 13,14, metal arc chute 15 is provided with small through hole；By using such scheme, the electric arc by second exhaust groove 61 can well be allowed again to be split by first and second liang of row's arc baffle plates 13,14 and metal arc chute 15, make internal arc and the steady decrease of charged gas simultaneously, the most substantially can be arc extinction, the temperature of gas also declines a lot, can well prevent arc reignition from making product explosion accident.
In embodiments of the present invention, described first row extinguishing arc baffle plate 13 is arranged near second exhaust groove 61, described second row extinguishing arc baffle plate about 14 two panels extinguishing arc baffle plate 141 extends setting, the two ends of described metal arc chute 15 carry out spacing by the extension of second row extinguishing arc baffle plate about 14 two panels extinguishing arc baffle plate 141, the Pao Hu road between Pao Hu road and second row extinguishing arc baffle plate 14 between described first row extinguishing arc baffle plate 13 shifts to install, so arranging purpose makes subdividing the arc effect more preferable, described second surge chamber 8 and the through setting in region 9 installing electrical apparatus release of chopper, gas so can well be made to enter the region installing electrical apparatus release of chopper, thus reduce pressure, product is avoided to burst, improve the electric arc velocity of discharge, improve breaking capacity.
Claims (7)
- null1. the arc extinguishing gas extraction system of a miniature circuit breaker，Include base、Arc-chutes and upper cover，It is characterized in that: between described base and upper cover and be positioned at the exhaust ports of arc-chutes and be provided with central dividing plate，Central dividing plate is arranged to upper and lower two air vent and is respectively first exhaust outlet and second exhaust outlet，The first dividing plate and second partition it is respectively arranged with between described central dividing plate and base and upper cover，First dividing plate and second partition press close to first exhaust outlet and the second exhaust outlet setting of correspondence respectively，First exhaust groove and second exhaust groove it is respectively arranged with on described first dividing plate and second partition，It is provided with the first surge chamber between described central dividing plate and upper cover and after being positioned at the first dividing plate，The lower section of the first surge chamber is provided with first exhaust passage，The second surge chamber it is provided with after being positioned at second partition between described central dividing plate and base，The side of the second surge chamber is provided with the second buffer channel.
- nullThe arc extinguishing gas extraction system of miniature circuit breaker the most according to claim 1，It is characterized in that: described central dividing plate is positioned at the setting of upper cover side and is arranged at intervals with projection，Adjacent projection forms groove，Cover on described and be arranged at intervals with boss，Adjacent lands forms groove，Projection shifts to install with boss，Conflict in the groove between adjacent lands in the top of projection，Conflict in the groove between adjacent projection in the top of boss，The top of each groove forms the first exhaust groove of Heterogeneous Permutation after being blocked by conflict，It is provided with catch after being positioned at first exhaust groove on described central dividing plate，Cover on described and be provided with the baffle plate interted with catch overlapping，Catch forms baffle wall with baffle fit，The first surge chamber is constituted between first exhaust groove and baffle wall，Baffle wall is provided with the installation cavity disposed for breaker connecting terminal relative to the opposite side of the first surge chamber.
- The arc extinguishing gas extraction system of miniature circuit breaker the most according to claim 1 and 2, it is characterized in that: on described base, be arranged at intervals with long projection, long recess is formed between adjacent long projection, conflict on central dividing plate so that groove forms second exhaust groove in the top of long projection, being provided with through hole on described central dividing plate, this through hole makes the first surge chamber and the through setting of the second surge chamber.
- The arc extinguishing gas extraction system of miniature circuit breaker the most according to claim 1 and 2, it is characterized in that: on described base, be arranged at intervals with long projection, long recess is formed between adjacent long projection, conflict on central dividing plate plate so that groove forms second exhaust groove in the top of long projection, it is provided with first and second liang of row's arc baffle plates in the second surge chamber on described base and after being positioned at second exhaust port, conflict with the side of central dividing plate respectively and arrange in the top of two row's arc baffle plates, two row's arc baffle-plate misplacements arrange and have interval between two row's arc baffle plates, it is provided with metal arc chute at the interval location of described two row's arc baffle plates, it is provided with small through hole on metal arc chute.
- The arc extinguishing gas extraction system of miniature circuit breaker the most according to claim 1 and 2, it is characterized in that: in the second surge chamber on described base and after being positioned at second exhaust port, be provided with first and second liang of row's arc baffle plates, conflict with the side of central dividing plate respectively and arrange in the top of two row's arc baffle plates, two row's arc baffle-plate misplacements arrange and have interval between two row's arc baffle plates, it is provided with metal arc chute at the interval location of described two row's arc baffle plates, being provided with small through hole on metal arc chute, described first row extinguishing arc baffle plate is arranged near second exhaust groove.
- The arc extinguishing gas extraction system of miniature circuit breaker the most according to claim 4, it is characterized in that: described first row extinguishing arc baffle plate is arranged near second exhaust groove, described second row extinguishing arc baffle plate upper and lower two panels extinguishing arc baffle plate extends setting, the two ends of described metal arc chute carry out spacing by the extension of second row extinguishing arc baffle plate upper and lower two panels extinguishing arc baffle plate, the Pao Hu road between Pao Hu road and second row extinguishing arc baffle plate between described first row extinguishing arc baffle plate shifts to install, described second surge chamber and the through setting in region installing electrical apparatus release of chopper.
- The arc extinguishing gas extraction system of miniature circuit breaker the most according to claim 5, it is characterized in that: described first row extinguishing arc baffle plate is arranged near second exhaust groove, described second row extinguishing arc baffle plate upper and lower two panels extinguishing arc baffle plate extends setting, the two ends of described metal arc chute carry out spacing by the extension of second row extinguishing arc baffle plate upper and lower two panels extinguishing arc baffle plate, the Pao Hu road between Pao Hu road and second row extinguishing arc baffle plate between described first row extinguishing arc baffle plate shifts to install, described second surge chamber and the through setting in region installing electrical apparatus release of chopper.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375236.2A CN105845524B (en) | 2016-05-31 | 2016-05-31 | A kind of arc extinguishing exhaust system of miniature circuit breaker |
| PCT/CN2017/077955 WO2017206578A1 (en) | 2016-05-31 | 2017-03-24 | Arc extinguishing exhaust system for miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610375236.2A CN105845524B (en) | 2016-05-31 | 2016-05-31 | A kind of arc extinguishing exhaust system of miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105845524A true CN105845524A (en) | 2016-08-10 |
| CN105845524B CN105845524B (en) | 2018-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610375236.2A Active CN105845524B (en) | 2016-05-31 | 2016-05-31 | A kind of arc extinguishing exhaust system of miniature circuit breaker |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105845524B (en) |
| WO (1) | WO2017206578A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017206578A1 (en) * | 2016-05-31 | 2017-12-07 | 乐清市也为电气有限公司 | Arc extinguishing exhaust system for miniature circuit breaker |
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| CN1498411A (en) * | 2001-03-20 | 2004-05-19 | 莫勒自动系统公司 | Housing for switching device |
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| WO2011064091A1 (en) * | 2009-11-27 | 2011-06-03 | Abb Ag | Arc extinguisher and switching device |
| CN103426670A (en) * | 2013-09-02 | 2013-12-04 | 浙江大华开关厂 | Breaker contact arc extinguishing system |
| CN204189738U (en) * | 2014-11-13 | 2015-03-04 | 杭州泰姆电气有限公司 | Circuit breaker |
| CN204257458U (en) * | 2014-11-13 | 2015-04-08 | 杭州泰姆电气有限公司 | Arc extinguishing system of circuit breaker |
| CN205657037U (en) * | 2016-05-31 | 2016-10-19 | 乐清市也为电气有限公司 | Miniature circuit breaker's arc extinguishing exhaust system |
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| US3997746A (en) * | 1974-04-23 | 1976-12-14 | Airpax Electronics, Incorporated | Circuit breaker with arc chamber screen |
| DE3621165A1 (en) * | 1985-07-09 | 1987-01-22 | Mitsubishi Electric Corp | ARC EXTINGUISHING DEVICE |
| JP2003346635A (en) * | 2002-05-28 | 2003-12-05 | Mitsubishi Electric Corp | Circuit breaker |
| CN105845524B (en) * | 2016-05-31 | 2018-09-07 | 乐清市也为电气有限公司 | A kind of arc extinguishing exhaust system of miniature circuit breaker |
-
2016
- 2016-05-31 CN CN201610375236.2A patent/CN105845524B/en active Active
-
2017
- 2017-03-24 WO PCT/CN2017/077955 patent/WO2017206578A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498411A (en) * | 2001-03-20 | 2004-05-19 | 莫勒自动系统公司 | Housing for switching device |
| WO2011064091A1 (en) * | 2009-11-27 | 2011-06-03 | Abb Ag | Arc extinguisher and switching device |
| CN102013365A (en) * | 2011-01-07 | 2011-04-13 | 上海诺雅克电气有限公司 | Arc control device of circuit breaker |
| CN103426670A (en) * | 2013-09-02 | 2013-12-04 | 浙江大华开关厂 | Breaker contact arc extinguishing system |
| CN204189738U (en) * | 2014-11-13 | 2015-03-04 | 杭州泰姆电气有限公司 | Circuit breaker |
| CN204257458U (en) * | 2014-11-13 | 2015-04-08 | 杭州泰姆电气有限公司 | Arc extinguishing system of circuit breaker |
| CN205657037U (en) * | 2016-05-31 | 2016-10-19 | 乐清市也为电气有限公司 | Miniature circuit breaker's arc extinguishing exhaust system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017206578A1 (en) * | 2016-05-31 | 2017-12-07 | 乐清市也为电气有限公司 | Arc extinguishing exhaust system for miniature circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017206578A1 (en) | 2017-12-07 |
| CN105845524B (en) | 2018-09-07 |
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Effective date of registration: 20230518 Address after: No. 7 Zhenxing Road, Liushi Town, Leqing City, Wenzhou City, Zhejiang Province, 325604 Patentee after: WENZHOU AOELEC ELECTRICAL CO.,LTD. Address before: Donghuangyu Village, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, 325000 Patentee before: Yueqing Yewei Electric Co.,Ltd. |
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