CN105742135B - A kind of exhaust arc quenching system of leakage circuit breakers - Google Patents
A kind of exhaust arc quenching system of leakage circuit breakers Download PDFInfo
- Publication number
- CN105742135B CN105742135B CN201610270804.2A CN201610270804A CN105742135B CN 105742135 B CN105742135 B CN 105742135B CN 201610270804 A CN201610270804 A CN 201610270804A CN 105742135 B CN105742135 B CN 105742135B
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- arc
- chutes
- chute
- exhaust
- circuit breakers
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- 230000000171 quenching effect Effects 0.000 title claims abstract description 18
- 238000010791 quenching Methods 0.000 title claims abstract description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000010891 electric arc Methods 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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 present invention relates to the exhaust arc quenching systems of a kind of leakage circuit breakers, in particular to leakage circuit breakers.The present invention uses following scheme, a kind of exhaust arc quenching system of leakage circuit breakers, it is characterised in that：The arc-control device further includes having the first arc chute and the second arc chute, first arc chute is fixed on the pedestal of breaker, second arc chute is fixed on the lid of breaker, first arc chute and the second arc chute form arc-chutes arc chute after being oppositely arranged, the tail end of the arc-chutes is arranged close to arc-chutes arc chute, multiple through-holes are arranged at intervals on the arc-chutes arc chute, the area of the through-hole is sequentially increased from the bottom up.By using said program, the present invention provide it is a kind of have can make the uniform arc extinguishing of arc-chutes, and can effectively solve that high temperature and high pressure gas expulsion efficiency is low in leakage circuit breakers, be more advantageous to the exhaust arc quenching system of the novel leakage circuit breakers for the breaking capacity for improving product.
Description
Technical field
The present invention relates to the exhaust arc quenching systems of a kind of leakage circuit breakers, in particular to leakage circuit breakers.
Background technology
Existing leakage circuit breakers arc extinguishing and exhaust system generally have arc-chutes, run-on tab, gas buffer room, exhaust outlet and electricity
The compositions such as arc partition board, arc-chute and run-on tab on existing leakage circuit breakers arc-chutes are generally setting symmetrical above and below, sound
Contact center is consistent with arc-chutes and run-on tab center, general to be gone out using reduction if dynamic/static contact is arranged on the upside of product
The method of the width of arc chamber and run-on tab realizes that dynamic/static contact center is consistent with arc-chutes center, therefore causes arc extinguishing building volume
Small, product breaking capacity is low；Secondly, the hole of lid and arc chute on pedestal is general in the same size unanimous between the higher and lower levels, but product is general
It is provided with run-on tab below in arc-chutes, therefore timesharing electric arc is readily incorporated, and causes arc-chutes scaling loss or more uneven, it is following to burn
Damage serious phenomenon, part of base and cover it is following, between Kong Yukong be easy by arc through, cause product to burst；Most of production
Product arc chute is not provided with protruding baffle, and the hole on arc chute is blocked when electric arc melts arc chute, causes arc extinguishing
Chamber pressure increase causes product to burst.Lid is not provided with the slot or boss of fixed arc-chute with pedestal, and arc-chutes cannot be good
Good positioning, arc-chutes cannot be aligned the hole on arc chute, cause ionized gas that cannot well be discharged；Part arc-chutes and arc extinguishing
Even if it is symmetrical that grid designs top and the bottom, but lid is in the same size with the hole of arc chute on pedestal, and run-on tab will without specially setting
Electric arc causes the space scaling loss more than arc-chutes material not serious, and material is few to the side plate of the space transfer more than arc extinguishing grid material
Space scaling loss serious phenomenon, a surge chamber is only arranged in portioned product and an exhaust outlet arc energy causes arc extinguishing indoor
When gas temperature and pressure increase, high temperature and high pressure gas can only enter a surge chamber and is discharged from an exhaust outlet so that go out
Arc efficiency is low, and the arc time is long, and disjunction effect is poor.
Invention content
The invention aims to overcome existing leakage circuit breakers drawbacks described above, and provide one kind to have that arc-chutes can be made equal
Even arc extinguishing, and can effectively solve that high temperature and high pressure gas expulsion efficiency is low in leakage circuit breakers, the arc time is long, disjunction effect difference etc.
Defect is more advantageous to the exhaust arc quenching system of the novel leakage circuit breakers for the breaking capacity for improving product.
Realize that above-mentioned purpose, the present invention use following scheme, a kind of exhaust arc quenching system of leakage circuit breakers, includes to go out
Arc device and arc exhaust duct is run, the arc-control device includes arc-chutes, upper run-on tab, lower run-on tab and flash barrier, described to go out
Arc chamber includes the side plate made of multiple metal arc-chutes disposed in parallel and insulating materials, it is characterised in that：The arc extinguishing
Device further includes having the first arc chute and the second arc chute, and the first arc chute is fixed on the pedestal of breaker,
Second arc chute is fixed on the lid of breaker, and the first arc chute and the second arc chute are formed after being oppositely arranged to go out
The tail end of arc chamber arc chute, the arc-chutes is arranged close to arc-chutes arc chute, is spaced on the arc-chutes arc chute
Multiple through-holes are provided with, the area of the through-hole is sequentially increased from the bottom up.
By using said program, because the via area above arc-chutes arc chute is bigger than following via area, by
In electric arc is rapidly introduced into arc-chutes, so the run-on tab at the striking mouth end of arc-chutes dehisces, positioned at lower section, in this way to pass through
Air pressure difference passes through from arc-chutes electric arc is relatively uniform, realizes uniform arc extinguishing.
The further setting of the present invention is：It is equidistant on first arc chute to be provided with groove and recessed from the bottom up
The depth of slot is sequentially increased, equidistant on second arc chute to be provided with groove, and the depth of groove is successively from the bottom up
Increase, the first arc chute and the opposite setting rearward recess that contradicts of the second arc chute just constitute leading on arc-chutes arc chute
Hole, the groove of the first arc chute and the groove of the second arc chute shift to install, and the through-hole that each groove is constituted corresponds to one
Grid between a adjacent metal arc-chute.
By using said program, so that the distance between adjacent through-holes is increased, can be very good to prevent so divided
Electric arc damages circuit breaker internal device from new be combined together to form compared with long arc.
The further setting of the present invention is：The metal arc-chute includes sheet noumenon, the both sides setting of sheet noumenon
There are chuck, the side plate to be connected in chuck, the front end of sheet noumenon is provided with striking mouth, and striking mouth is provided with first on one side
Foot is diverged, another side is provided with the second fork foot, and the first fork foot is located at pedestal side, and the second fork foot is located at the side of lid,
The width and length of first fork foot are more than the width and length of the second fork foot, and the first fork foot is located at the side of striking mouth side
Side includes there are two pingbian and a bevel edge, and bevel edge is located between two pingbians, and the apical position of bevel edge and the second fork foot
It is corresponding.
By using said program, being conducive to, which makes electric arc introduce arc-chutes first, diverges foot region, wherein bevel edge
Electric arc is introduced the first fork foot region well, makes arc extinguishing effect evenly, and the body of arc-chutes can be increased to the greatest extent
Product, the arc-chutes of the structure are very suitable for that type that breaker is double-layer structure, and such dynamic/static contact draws positioned at arc-chutes
The side of nock, and the other side and dynamic/static contact are distant, we can use aforesaid way that electric arc is introduced and be touched with sound
Uniform arc extinguishing is realized in remote side, improves arc quenching effect.
The further setting of the present invention is：The upper run-on tab is bent downwardly setting by the yoke of leakage circuit breakers and constitutes,
The lower run-on tab is wholely set by bottom plate and twisted plate to be constituted, and the bottom plate is arranged in the lower section of arc-chutes, the twisted plate
Be bent upwards, the width of bottom plate is more than the width of twisted plate, and the both sides of the twisted plate are arranged flash barrier, two flash barriers it is opposite
Both sides are provided with magnetizer.
By using said program, the structure for simplifying circuit breaker internal is can be very good, wherein upper run-on tab is disconnected by leaking electricity
It is exactly this purpose that the yoke of road device, which is bent downwardly setting and constitutes, and the in addition setting of above-mentioned structure and magnetizer is for more
Good striking.
The present invention it is last be arranged be：The race arc exhaust duct is provided with two, wherein one extends to breaker lower section
Setting is referred to as first and runs arc exhaust duct, and another is referred to as second and runs arc exhaust duct to being extended above breaker, and first
It includes the first surge chamber and the first row gas port that is penetrated through with the first surge chamber to run arc exhaust duct, and the first surge chamber is located at arc-chutes
The other side of the arc chute relative to arc-chutes, first row gas port are located at the lower section of base and cover, and the second race arc exhaust duct includes
There are the second surge chamber and second exhaust port, the second surge chamber to be located at the electric leakage electromagnetic coil space of leakage circuit breakers, second row
Gas port is located at the top of base and cover.
By using said program, high temperature and high pressure gas is outer except that can be discharged from first row gas port, can also pass through second and buffer
It is discharged from second exhaust port behind room, the compressing caused by gas expansion to pedestal or product is avoided even to damage, and with point
Grain can be buffered by surge chamber without spraying product casing, and phase fault is caused.
The present invention is described further below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the stereogram of product involved by the embodiment of the present invention；
Fig. 2 is the structure chart removed in Fig. 1 after lid；
Fig. 3 is the structure chart of the arc-chutes of the embodiment of the present invention；
Fig. 4 be in Fig. 1 A-A to structure chart；
Fig. 5 is the stereogram that the embodiment of the present invention reflects the first arc chute；
Fig. 6 is the stereogram that the embodiment of the present invention reflects the second arc chute；
Fig. 7 is the metal arc-chute stereogram of the embodiment of the present invention；
Fig. 8 is the stereogram of the lower run-on tab of the embodiment of the present invention；
Fig. 9 is the structure chart of reflection flash barrier and magnetizer of the embodiment of the present invention.
Specific implementation mode
As shown in figs. 1 to 9, the exhaust arc quenching system of a kind of leakage circuit breakers includes arc-control device 1 and race arc exhaust
Road 2, the arc-control device 1 include arc-chutes 11, upper run-on tab 12, lower run-on tab 13 and flash barrier 14, the arc-chutes 11
Include the side plate 112 made of multiple metal arc-chutes 111 disposed in parallel and insulating materials, above-mentioned technical characteristic is existing
It is also common to have in technology, so be just not described in detail in the present embodiment, in the present embodiment, the arc-control device 1
Further include having the first arc chute 15 and the second arc chute 16, the first arc chute 15 is fixed at the pedestal of breaker
On, the second arc chute 16 is fixed on the lid of breaker, and the first arc chute 15 and the second arc chute 16 are set relatively
It postpones to form arc-chutes arc chute 156, the tail end of the arc-chutes 11 is arranged close to arc-chutes arc chute 156, described to go out
Multiple through-holes 1561 are arranged at intervals on arc chamber arc chute 156, the area of the through-hole 1561 is sequentially increased from the bottom up；Using
Said program, because 1561 area of through-hole above arc-chutes arc chute 156 is bigger than following 1561 area of through-hole, due to
Electric arc is rapidly introduced into arc-chutes 11, so dehiscing positioned at lower section for the run-on tab 12,13 at the striking mouth end of arc-chutes 11, logical in this way
It crosses air pressure difference and passes through from arc-chutes 11 electric arc is relatively uniform, realize uniform arc extinguishing.
In embodiments of the present invention, equidistant on first arc chute 15 to be provided with groove 151 and recessed from the bottom up
The depth of slot 151 is sequentially increased, and 16 are equidistantly positioned fluted, and the depth of groove from the bottom up on second arc chute
It is sequentially increased, the first arc chute 15 and the 16 opposite setting rearward recess 151,161 that contradicts of the second arc chute just constitute arc-chutes
Through-hole 1561 on arc chute, the groove 151 of the first arc chute 15 and the dislocation of groove 161 of the second arc chute 16 are set
It sets, and the through-hole of each composition of groove 151,161 corresponds to the grid between an adjacent metal arc-chute 111, makes so adjacent
The distance between through-hole 1561 increases, and distance here refers to lateral distance, can be very good to prevent so divided electric arc from
New be combined together to form damages circuit breaker internal device compared with long arc, we are to illustrate that 15 He of the first arc chute here
Specifically how docking mode is many on the top of second arc chute 16, for example be mutually inserted or contradict cooperation etc., still
Accomplish the distance of increasing adjacent through-holes as possible between them.
In embodiments of the present invention, the metal arc-chute 111 includes sheet noumenon, and the both sides of sheet noumenon are provided with
Chuck 1111, the side plate 112 are connected in chuck 1111, and the front end of sheet noumenon is provided with striking mouth 1112, striking mouth
1112 are provided with the first fork foot 11121 on one side, and another side is provided with the second fork foot 11122, the first 11121, foot of fork
In pedestal side, the second fork foot 11122 is located at the side of lid, and the width and length of the first fork foot 11121 are more than the second fork
The width and length of foot 11122 are opened, the side that the first fork foot 11121 is located at 1112 side of striking mouth includes that there are two pingbians
111211 and a bevel edge 111212, bevel edge 111212 is located between two pingbians 111211, and the fork of bevel edge 111212 and second
The apical position for opening foot 11122 is corresponding.By using said program, being conducive to, which makes electric arc introduce arc-chutes 11 first, diverges foot
Electric arc can be introduced the first 11121 region of fork foot by region 11121, wherein bevel edge 111212 well, make arc extinguishing effect more
Uniformly, and the volumes of arc-chutes 11 can be increased to the greatest extent, it is double-deck that the arc-chutes 11 of the structure, which are very suitable for breaker,
That type of structure, such dynamic/static contact is located at the side of arc-chutes striking mouth, and the other side and dynamic/static contact are distant, I
Can use aforesaid way that electric arc is introduced the side remote with dynamic/static contact, realize uniform arc extinguishing, raising arc quenching effect.
In embodiments of the present invention, the upper run-on tab 12 is bent downwardly setting by the yoke of leakage circuit breakers and constitutes, this
Sample can be very good to simplify the structure of circuit breaker internal, and the lower run-on tab 13 is wholely set structure by bottom plate 131 and twisted plate 132
At the bottom plate 131 is arranged in the lower section of arc-chutes 11, and the twisted plate 132 is bent upwards, and the width of bottom plate 131 is more than curved
Flash barrier 14, the two opposite sides of two flash barriers 14 or side setting is arranged in the both sides of the width of bent plate 132, the twisted plate 132
There is magnetizer 141, setting magnetizer 141 is for better striking.
In embodiments of the present invention, the race arc exhaust duct 2 is provided with two, wherein one sets to extension below breaker
The referred to as first race arc exhaust duct 21 is set, another to above breaker extended referred to as second is run arc exhaust duct 22, the
One race arc exhaust duct 21 includes the first surge chamber 211 and the first row gas port 212 that penetrate through with the first surge chamber 211, and first delays
It rushes room 211 and is located at the other side of the arc-chutes arc chute 156 relative to arc-chutes 11, first row gas port 212 is located at base and cover
Lower section, the second race arc exhaust duct 22 includes the second surge chamber 221 and second exhaust port 222, and the second surge chamber 221 is located at leakage
At the electric leakage electromagnetic coil space of electrical circuit breakers, second exhaust port 222 is located at the top of base and cover；By using above-mentioned side
Case, high temperature and high pressure gas except can from addition to first row gas port 212 is discharged, also can by after the second surge chamber 221 from second exhaust port
222 discharges avoid the compressing caused by gas expansion to pedestal or product from even damaging, and can pass through surge chamber with particle
Buffering causes phase fault without spraying product casing.
Claims (7)
1. a kind of exhaust arc quenching system of leakage circuit breakers includes arc-control device and race arc exhaust duct, the arc-control device packet
Arc-chutes, upper run-on tab, lower run-on tab and flash barrier are included, the arc-chutes include multiple metal arc-chutes disposed in parallel
With the side plate made of insulating materials, it is characterised in that：The arc-control device further includes having the first arc chute and the second electric arc
Partition board, the first arc chute are fixed on the pedestal of breaker, and the second arc chute is fixed on the lid of breaker,
First arc chute and the second arc chute form arc-chutes arc chute after being oppositely arranged, the tail ends of the arc-chutes is close to going out
Arc chamber arc chute is arranged, and is arranged at intervals with multiple through-holes on the arc-chutes arc chute, the area of the through-hole is from the bottom up
It is sequentially increased, it is equidistant on first arc chute to be provided with groove, and the depth of groove is sequentially increased from the bottom up, it is described
It is equidistant on second arc chute to be provided with groove, and the depth of groove is sequentially increased from the bottom up, the first arc chute and
Two arc chutes are opposite to be contradicted setting rearward recess and just constitutes the through-hole on arc-chutes arc chute, the groove of the first arc chute with
The groove of second arc chute shifts to install, and the through-hole of each groove composition corresponds to the grid between an adjacent metal arc-chute
Lattice.
2. the exhaust arc quenching system of leakage circuit breakers according to claim 1, it is characterised in that：The metal arc-chute packet
Sheet noumenon is included, the both sides of sheet noumenon are provided with chuck, and the side plate is connected in chuck, the front end setting of sheet noumenon
There are striking mouth, striking mouth to be provided with the first fork foot on one side, another side is provided with the second fork foot, and the first fork foot is located at base
Seat side, the second fork foot are located at the side of lid, and the width and length of the first fork foot are more than the width and length of the second fork foot
Degree, the side that the first fork foot is located at striking mouth side include there are two pingbian and a bevel edge, bevel edge positioned at two pingbians it
Between, and bevel edge is corresponding with the second fork apical position of foot.
3. the exhaust arc quenching system of leakage circuit breakers according to claim 1, it is characterised in that：The upper run-on tab is by leaking
The yoke of electrical circuit breakers is bent downwardly setting and constitutes, and the lower run-on tab is wholely set by bottom plate and twisted plate to be constituted, the bottom
Plate is arranged in the lower section of arc-chutes, and the twisted plate is bent upwards, and the width of bottom plate is more than the width of twisted plate, the twisted plate
Both sides flash barrier is set, the two opposite sides of two flash barriers are provided with magnetizer.
4. the exhaust arc quenching system of leakage circuit breakers according to claim 2, it is characterised in that：The upper run-on tab is by leaking
The yoke of electrical circuit breakers is bent downwardly setting and constitutes, and the lower run-on tab is wholely set by bottom plate and twisted plate to be constituted, the bottom
Plate is arranged in the lower section of arc-chutes, and the twisted plate is bent upwards, and the width of bottom plate is more than the width of twisted plate, the twisted plate
Both sides be arranged flash barrier, the two opposite sides of two flash barriers or side are provided with magnetizer.
5. the exhaust arc quenching system of leakage circuit breakers according to claim 1, it is characterised in that：The race arc exhaust duct is set
Two are equipped with, wherein one is referred to as first and runs arc exhaust duct to being extended below breaker, another to above breaker
It is extended and is referred to as the second race arc exhaust duct, the first race arc exhaust duct includes the first surge chamber and penetrated through with the first surge chamber
First row gas port, the first surge chamber is located at the other side of the arc-chutes arc chute relative to arc-chutes, and first row gas port is located at
The lower section of base and cover, the second race arc exhaust duct includes the second surge chamber and second exhaust port, and the second surge chamber is located at electric leakage
At the electric leakage electromagnetic coil space of breaker, second exhaust port is located at the top of base and cover.
6. the exhaust arc quenching system of leakage circuit breakers according to claim 2, it is characterised in that：The race arc exhaust duct is set
Two are equipped with, wherein one is referred to as first and runs arc exhaust duct to being extended below breaker, another to above breaker
It is extended and is referred to as the second race arc exhaust duct, the first race arc exhaust duct includes the first surge chamber and penetrated through with the first surge chamber
First row gas port, the first surge chamber is located at the other side of the arc-chutes arc chute relative to arc-chutes, and first row gas port is located at
The lower section of base and cover, the second race arc exhaust duct includes the second surge chamber and second exhaust port, and the second surge chamber is located at electric leakage
At the electric leakage electromagnetic coil space of breaker, second exhaust port is located at the top of base and cover.
7. the exhaust arc quenching system of leakage circuit breakers according to claim 3, it is characterised in that：The race arc exhaust duct is set
Two are equipped with, wherein one is referred to as first and runs arc exhaust duct to being extended below breaker, another to above breaker
It is extended and is referred to as the second race arc exhaust duct, the first race arc exhaust duct includes the first surge chamber and penetrated through with the first surge chamber
First row gas port, the first surge chamber is located at the other side of the arc-chutes arc chute relative to arc-chutes, and first row gas port is located at
The lower section of base and cover, the second race arc exhaust duct includes the second surge chamber and second exhaust port, and the second surge chamber is located at electric leakage
At the electric leakage electromagnetic coil space of breaker, second exhaust port is located at the top of base and cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270804.2A CN105742135B (en) | 2016-04-27 | 2016-04-27 | A kind of exhaust arc quenching system of leakage circuit breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270804.2A CN105742135B (en) | 2016-04-27 | 2016-04-27 | A kind of exhaust arc quenching system of leakage circuit breakers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105742135A CN105742135A (en) | 2016-07-06 |
| CN105742135B true CN105742135B (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270804.2A Active CN105742135B (en) | 2016-04-27 | 2016-04-27 | A kind of exhaust arc quenching system of leakage circuit breakers |
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| CN (1) | CN105742135B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9859075B1 (en) * | 2016-12-30 | 2018-01-02 | Carling Technologies, Inc. | Bottom venting circuit breaker |
| CN107393776A (en) * | 2017-08-24 | 2017-11-24 | 乐清市也为电气有限公司 | A kind of high-breaking miniature breaker |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498411A (en) * | 2001-03-20 | 2004-05-19 | 莫勒自动***公司 | Housing for switching device |
| CN103681035A (en) * | 2013-12-06 | 2014-03-26 | 德力西电气有限公司 | Arc extinguish chamber structure of disconnector |
| CN204257458U (en) * | 2014-11-13 | 2015-04-08 | 杭州泰姆电气有限公司 | Arc extinguishing system of circuit breaker |
| CN204257457U (en) * | 2014-11-13 | 2015-04-08 | 浙江正泰电器股份有限公司 | Breaker arc extinguishing mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202796811U (en) * | 2012-10-18 | 2013-03-13 | 浙江天正电气股份有限公司 | Arc extinguishing system of breaker |
| CN205564690U (en) * | 2016-04-27 | 2016-09-07 | 乐清市也为电气有限公司 | Exhaust arc extinguishing system of electric leakage circuit breaker |
-
2016
- 2016-04-27 CN CN201610270804.2A patent/CN105742135B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1498411A (en) * | 2001-03-20 | 2004-05-19 | 莫勒自动***公司 | Housing for switching device |
| CN103681035A (en) * | 2013-12-06 | 2014-03-26 | 德力西电气有限公司 | Arc extinguish chamber structure of disconnector |
| CN204257458U (en) * | 2014-11-13 | 2015-04-08 | 杭州泰姆电气有限公司 | Arc extinguishing system of circuit breaker |
| CN204257457U (en) * | 2014-11-13 | 2015-04-08 | 浙江正泰电器股份有限公司 | Breaker arc extinguishing mechanism |
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| Publication number | Publication date |
|---|---|
| CN105742135A (en) | 2016-07-06 |
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