CN108461364A - A kind of arc quenching system and the breaker of breaker - Google Patents
A kind of arc quenching system and the breaker of breaker Download PDFInfo
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- CN108461364A CN108461364A CN201810362522.4A CN201810362522A CN108461364A CN 108461364 A CN108461364 A CN 108461364A CN 201810362522 A CN201810362522 A CN 201810362522A CN 108461364 A CN108461364 A CN 108461364A
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- breaker
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- 238000010791 quenching Methods 0.000 title claims abstract description 25
- 230000000171 quenching effect Effects 0.000 title claims abstract description 25
- 230000003068 static effect Effects 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims 5
- 229910052709 silver Inorganic materials 0.000 claims 5
- 239000004332 silver Substances 0.000 claims 5
- 238000005192 partition Methods 0.000 claims 1
- 238000010891 electric arc Methods 0.000 abstract description 21
- 230000008033 biological extinction Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007792 gaseous phase Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01H73/04—Contacts
-
- 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
Abstract
The invention discloses a kind of arc quenching systems of breaker, it includes arc-chutes (1) and contact system (2), the contact system (2) includes movable contact system (201) and static contact system (202), the engagement or disjunction of the movable contact system (201) and static contact system (202) control the break-make of breaker circuit, the movable contact system (201) and static contact system (202) be front and back to be combined or disjunction is located at outside arc-chutes inside (1) and arc-chutes (1) that electric arc can be made not generate outside arc-chutes (1) and extinguishing twice successively, and it only generates and extinguishes inside arc-chutes (1).The arc quenching system of the breaker and the breaker enhance the arc extinction ability of arc-chutes by the improvement to arc extinguishing system of circuit breaker structure, it is ensured that the electrical endurance and breaking capacity of frame circuit breaker reach relevant criterion requirement.
Description
Technical field
The invention belongs to low voltage electrical apparatus technology fields, are exactly specifically arc quenching system and the open circuit for being related to a kind of breaker
Device, it is suitable for direct current and AC power supply systems.
Background technology
Breaker is most important controller switching equipment in low-voltage distribution system, with power engineering team power supply and equipment for power transmission and distribution
It is required that continuous improvement, miniaturization, high-performance, modularization, height also higher and higher to the performance requirement for circuit protecting switch
Reliability is the main direction of development of air-break at this stage.Contact and arc quenching system are the important components of breaker,
Contact shape and size design in contact system is very crucial, is directly related to the electrical endurance and breaking capacity of breaker.
Meanwhile as new energy is grown rapidly, direct current power system has also obtained significant progress.And existing common frame
Frame breaker is mainly used in AC electric power systems, and the frame circuit breaker for DC power system is less.Due to direct current system
The opposite AC system of system does not have natural zero crossing phenomenon, cannot be extinguished using the moment of alternating current zero passage as exchange
Electric arc can only rely on rapid elongation and cooling electric arc, and it is more than supply voltage to make arc voltage, then by arc extinction, so putting out
Arc is more difficult.Therefore the extinguishing of direct-current arc is very difficult.Chinese patent ZL201621171400.X discloses a kind of direct current
Breaker of plastic casing arc quenching system, including static contact, and the arc-chutes and arc-extinguish chamber that are arranged on static contact, the arc extinguishing
Room includes the arc extinguishing grid pieces for two pieces of flash barriers being arranged on static contact, and be disposed in an evenly spaced relation between two pieces of flash barriers, institute
The arc-extinguish chamber stated includes two pieces of sidings at the interval being tightly disposed on static contact, and one end of two pieces of sidings is also against described
Arc extinguishing grid pieces so that arc-extinguish chamber, arc-chutes and static contact three cooperatively form the gas chamber of a relative closure, dynamic in breaker
Contact is i.e. in the gas indoor sport.The direct current breaker of plastic casing solves the problems, such as that low current blow-out is difficult, and improves it
The ability etc. of short circuit breaking.But the electric arc that the breaker generates can not extinguish completely, being easy spilling arc-chutes makes breaker
With generation security risk.
Invention content
The purpose of the present invention quenchless technical barrier of the electric arc in straight-flow system aiming at existing frame circuit breaker,
The arc quenching system and the breaker for providing a kind of breaker enhance arc extinguishing by the improvement to arc extinguishing system of circuit breaker structure
The arc extinction ability of room, it is ensured that the electrical endurance and breaking capacity of frame circuit breaker reach relevant criterion requirement.
Technical solution
In order to achieve the above technical purposes, the present invention devises a kind of arc quenching system of breaker, it include arc-chutes and
Contact system, the contact system include movable contact system and static contact system, the movable contact system and static contact system
Engagement or disjunction control the break-make of breaker circuit, it is characterised in that：
The movable contact system includes long moving contact component, and the long moving contact component both sides or side arrange that short move is touched
Head assembly, the long moving contact component and short moving contact component can be rotated around same rotation center, the long moving contact component
Preceding long movable contact and rear long movable contact are equipped with before and after upper successively, the short moving contact component is equipped with short movable contact,
The static contact system includes static contact panel, and the static contact panel is equipped with preceding stationary contact and rear stationary contact, described preceding quiet
Contact is corresponding with the preceding long movable contact, and the rear stationary contact is corresponding with rear long movable contact and short movable contact；
The preceding stationary contact and the preceding long movable contact are located inside arc-chutes, the stationary contact afterwards, rear long movable contact and
Short movable contact is located at outside arc-chutes；
In the movable contact system and the static contact system engaging process, the preceding stationary contact and the preceding long movable contact
Between prior to stationary contact after described with it is described after contacted between long movable contact and short movable contact；
In the movable contact system and the static contact system breaking course, the preceding stationary contact and the preceding long movable contact
Between after after described stationary contact and it is described after disjunction between long movable contact and short movable contact.
Further, the rear long movable contact and short movable contact are located at same level, and the preceding long movable contact is long after being located at
Above movable contact and short movable contact；
Further, the arc-chutes include left clapboard and right clapboard, arc extinguishing grid pieces group both ends be inserted into respectively it is described it is left every
On plate and right clapboard, arc extinguishing grid pieces group upper end is equipped with top arc extinguishing grid pieces, and the both ends for pushing up arc extinguishing grid pieces are inserted into described
On left clapboard and right clapboard, striking grid is equipped with above the top arc extinguishing grid pieces, the striking grid is inserted into the left clapboard
On right clapboard, foot is stretched out in arc extinguishing grid pieces group front end both sides, and aerogenesis cover is coated with foot and is located at the top arc extinguishing grid pieces
Lower section, the preceding stationary contact are located at the left clapboard, right clapboard with the preceding long movable contact, and arc extinguishing grid pieces group and aerogenesis cover are formed
Spark chamber room in.
Preferably, the long moving contact component is longer than the short moving contact component.
Preferably, the arc extinguishing grid pieces group includes several arc extinguishing grid pieces, is equidistantly arranged between several arc extinguishing grid pieces,
The horizontal distance of several arc extinguishing grid pieces and the preceding stationary contact gradually becomes remote since arc extinguishing grid pieces group bottom is upwards, then
Gradually become close in the middle part of to arc extinguishing grid pieces groups, then becomes upwards and gradually remote in the middle part of arc extinguishing grid pieces group, finally arrive arc extinguishing grid pieces group
It is in the figure of three that striking grid in top, which gradually becomes closely,.
Preferably, aerogenesis cover inner cavity is the figure of three corresponding with the arc extinguishing grid pieces group.
Preferably, the arc end of the striking grid is three downward bending structures, the contact of the long moving contact component
End is in upper hook shape protrusion, when the movable contact system and the static contact system disjunction, the arc end of the striking grid with
The current path of M shapes can be formed between the contact end of the long moving contact component.
Preferably, the outer profile of the hook protrusion contact end of the long moving contact component is triangular shaped, and front end
Wedge angle is obtuse angle, and wedge angle point is located at the middle and lower part position of triangle, and the contact end of the short moving contact component is hook protrusion, institute
The outer profile for stating the hook protrusion contact end of short moving contact component is arc-shaped.
Further, the front end of the static contact panel is located at the front of preceding stationary contact equipped with arc leading angle, the rear end of the arc leading angle
Concordant with the preceding stationary contact, the arc leading angle is trapezoidal dovetail shaped, and the width of the arc leading angle is from positioned at preceding stationary contact side
It is become larger to the side far from preceding stationary contact.
Further, the preceding long movable contact, rear long movable contact, short movable contact, preceding stationary contact, rear stationary contact and corresponding length
Moving contact component, short moving contact component, static contact panel are fabricated to split type or integral structure using same or different material.
The present invention also provides a kind of breakers, it includes above-mentioned arc quenching system.
Advantageous effect
The arc quenching system and the breaker of a kind of breaker provided by the invention, by arc extinguishing system of circuit breaker structure
It improves, enhances the arc extinction ability of arc-chutes, it is ensured that frame circuit breaker electrical endurance and disjunction energy in straight-flow system
Power reaches relevant criterion requirement.Meanwhile AC system is also can apply to by putting into practice the breaker, it equally can also meet and quickly put out
It goes out the requirement of electric arc.
Description of the drawings
Attached drawing 1a is the product schematic diagram of the embodiment of the present invention.
Attached drawing 1b is the product structure schematic diagram of the embodiment of the present invention.
Attached drawing 2 is the decomposition texture schematic diagram of the embodiment of the present invention.
Attached drawing 3 is that contact system is located at positional structure schematic diagram in arc-chutes in the embodiment of the present invention.
Attached drawing 4 is contact system structure schematic diagram during the present invention is implemented.
Attached drawing 5 is long moving contact component structural schematic diagram during the present invention is implemented.
Attached drawing 6 is short moving contact component structural schematic diagram during the present invention is implemented.
Attached drawing 7 is arc-chutes internal structure schematic diagram during the present invention is implemented.
Attached drawing 8 is arc chute chip architecture schematic diagram in the embodiment of the present invention.
Attached drawing 9 is top arc chute chip architecture schematic diagram in the embodiment of the present invention.
Attached drawing 10 is striking grid structural schematic diagram in the embodiment of the present invention.
Attached drawing 11 is arc leading angle structural schematic diagram in the embodiment of the present invention.
Attached drawing 12 is contact system engaging process structural schematic diagram in the embodiment of the present invention.
Attached drawing 13 is contact system breaking course structural schematic diagram in the embodiment of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the present invention is described in further details.
Embodiment
As shown in attached drawing 1a, 1b and 2, a kind of arc quenching system of breaker, it includes arc-chutes 1 and contact system 2, described
Contact system 2 includes movable contact system 201 and static contact system 202, the movable contact system 201 and static contact system 202
Engagement or disjunction control the break-make of breaker circuit, wherein：
As shown in Fig. 4, the movable contact system 201 includes long moving contact component 201a, the long moving contact component
Short moving contact component 201b is arranged in the both sides 201a or side, and the long moving contact component 201a is than the short moving contact component
201b long, the long moving contact component 201a and short moving contact component 201b can be rotated around same rotation center, such as 5 institute of attached drawing
Show, it is front and back successively equipped with preceding long movable contact 201a01 and rear long movable contact 201a02 on the long moving contact component 201a, it is such as attached
Shown in Fig. 6, the short moving contact component 201b is equipped with short movable contact 201b01, and the rear long movable contact 201a02 and short move are touched
Point 201b01 is located at same level, long movable contact 201a02 and short movable contact after the preceding long movable contact 201a01 is located at
Above 201b01；
As shown in attached drawing 2,3 and 4, the static contact system 202 includes static contact panel 202a, and the static contact panel 202a is equipped with
Preceding stationary contact 202a01 and rear stationary contact 202a02, the preceding stationary contact 202a01 are corresponding with the preceding long movable contact 201a01,
Stationary contact 202a02 is corresponding with rear long movable contact 201a02 and short movable contact 201b01 after described；As shown in Fig. 3, described preceding quiet
The contact 202a01 and preceding long movable contact 201a01 is located inside arc quenching system 1, and the rear stationary contact 202a02, rear long move are touched
Point 201a02 and short movable contact 201b01 are located at outside arc-chutes 1；
It is the preceding long movable contact 201a01, rear long movable contact 201a02, short movable contact 201b01, preceding quiet in the present embodiment
Contact 202a01, rear stationary contact 202a02 respectively with corresponding long moving contact component 201a, short moving contact component 201b, static contact panel
202a is made of same or different material, and corresponding structure makes split type or integral type.
As shown in attached drawing 1a, 1b, 2 and 3, the arc-chutes 1 include left clapboard 101 and right clapboard 102, arc extinguishing grid pieces group
103 both ends are inserted into respectively on the left clapboard 101 and right clapboard 102, as shown in attached drawing 7,8 and 9, the arc extinguishing grid pieces group
103 upper ends are equipped with top arc extinguishing grid pieces 104, and the both ends of the top arc extinguishing grid pieces 104 are inserted into the left clapboard 101 and right clapboard
On 102,104 top of the top arc extinguishing grid pieces is equipped with striking grid 105, and the striking grid 105 is inserted into the left clapboard 101
On right clapboard 102, foot 103a01 is stretched out in 103 front end both sides of the arc extinguishing grid pieces group, and aerogenesis cover 106 is coated with foot
103a01 is located at 104 lower section of the top arc extinguishing grid pieces, and the preceding stationary contact 202a01 is located at the preceding long movable contact 201a01
In the spark chamber room that the left clapboard 101, right clapboard 102, arc extinguishing grid pieces group 103 and aerogenesis cover 106 are formed.The arc extinguishing grid pieces
Group 103 includes several arc extinguishing grid pieces 103a, is equidistantly arranged between several arc extinguishing grid pieces 103a, several arc extinguishing grid pieces
The horizontal distance of the 103a and preceding stationary contact 202a01 gradually becomes remote since 103 bottom of arc extinguishing grid pieces group is upwards, then arrives
The middle part of arc extinguishing grid pieces group 103 gradually becomes close, then becomes upwards and gradually remote from 103 middle part of arc extinguishing grid pieces group, finally arrives arc-chute
It is in the figure of three that 103 top striking grid 105 of piece group, which gradually becomes closely,.106 inner cavity of aerogenesis cover is and the arc extinguishing grid pieces group
The 103 corresponding figure of three.In particular, be exactly that arc extinguishing grid pieces group 103 is total in the present embodiment including 18 arc extinguishing grid pieces 103a
It is bottom-up equally to arrange；Bottom-up 1st of 18 arc extinguishing grid pieces 103a are to stationary contact 202a01 water before the 11st pitch of fins
Square to distance gradually become remote by closely；12nd and 13 distances of the arc extinguishing grid pieces 103a away from preceding stationary contact 202a01 horizontal directions
Become again close；Distances of 14th to the 18 arc extinguishing grid pieces 103a away from preceding stationary contact 202a01 horizontal directions gradually becomes remote by closely again；
Distance of the striking grid 105 away from preceding stationary contact 202a01 horizontal directions becomes close again.
As shown in Fig. 10, the arc end 105a of the striking grid 105 is three downward bending structures.Such as attached drawing 2,3
Shown in 4, the contact end 201a03 of the long moving contact component 201a is in upper hook shape protrusion, the long moving contact component 201a
The outer profile of hook protrusion contact end 201a03 be triangular shaped, and front end wedge angle is obtuse angle, and wedge angle point is located at triangle
Middle and lower part position, the contact end 201b02 of the short moving contact component 201b is hook protrusion, the short moving contact component
The outer profile of the hook protrusion contact end 201b02 of 201b is arc-shaped.The movable contact system 201 and the static contact system
When 202 disjunction, between the arc end 105a of the striking grid 105 and the contact end 201a03 of the long moving contact component 201a
The current path of M shapes can be formed.The structure of tri- bendings of arc end 105a will greatly reinforce electric field strength herein, will be more advantageous
In electric arc is led to 1 top of arc-chutes, the length of elongating arc improves arc voltage, will greatly improve breaking capacity.
Meanwhile as shown in Fig. 4, the front end of the static contact panel 202a is located at the front of preceding stationary contact 202a01 equipped with striking
Angle 202a03, the rear end of the arc leading angle 202a03 is concordant with the preceding stationary contact 202a01, as shown in Fig. 11, the striking
Angle 202a03 is trapezoidal dovetail shaped, and the width of the arc leading angle 202a03 is quiet before being laterally away from positioned at preceding stationary contact 202,a01 mono-
The side of contact 202a01 becomes larger.Trapezoidal swallow-tailed arc leading angle 202a03 is by the electromagnetism at the ends stationary contact 202a01 before increasing
More advantageous electric arc is transferred out by field intensity from preceding stationary contact 202a01, and at the same time, the arc extinguishing grid pieces group 103 of 3 fonts also will
The transfer of the enhancing electric arc of magnetic field intensity acceleration herein, leads to rapidly 103 bottom of arc extinguishing grid pieces group by electric arc arc root and shifts to arc extinguishing
1 rear end of room helps elongating arc length and improves arc voltage, improves breaking arc ability.
As shown in Fig. 12, in 202 engaging process of the movable contact system 201 and the static contact system, before described
Prior to the rear stationary contact 202a02 and the rear long movable contact between stationary contact 202a01 and the preceding long movable contact 201a01
It is contacted between 201a02 and short movable contact 201b01；
As shown in Fig. 13, in 202 breaking course of the movable contact system 201 and the static contact system, before described
In the rear stationary contact 202a02 and the rear long movable contact after between stationary contact 202a01 and the preceding long movable contact 201a01
Disjunction between 201a02 and short movable contact 201b01.
Due to after between the preceding stationary contact 202a01 and the preceding long movable contact 201a01 after described stationary contact
202a02 and the rear disjunction between long movable contact 201a02 and short movable contact 201b01, therefore electric arc only will appear in preceding stationary contact
Between point 202a01 and the preceding long movable contact 201a01.Under air dielectric, preceding stationary contact 202a01 and preceding long movable contact
201a01 disjunction moments, contact position resistance and temperature are continuously increased, when temperature reaches contact material fusion temperature, contact point
Place forms the metal bridge of fusing metal, and preceding long movable contact 201a01, which continues to disconnect, can break metal bridge and generate electric arc, starting point
Combustion electric arc is the metal vapors by preceding stationary contact 202a01 and preceding long movable contact 201a01, then after electric arc is elongated, week
It encloses air dielectric and steps into arc gap and metallic phase arc is changed by the gaseous phase arc of free support.Gaseous phase arc is by preceding quiet
Contact 202a01 is constantly elongated with preceding long movable contact 201a01, while arc extinguishing grid pieces group 103, aerogenesis cover 106 are total in arc-chutes 1
Reach final extinguishing under same-action.The present invention realizes stationary contact 202a01 and the preceding long movable contact before electric arc only results from
Between 201a01, i.e., electric arc directly results from inside arc-chutes 1, eliminates electric arc and is transferred to internal procedure outside arc-chutes 1；
Meanwhile result from the electric arc inside arc-chutes 1, arc extinguishing grid pieces group 103, aerogenesis cover 106 formed narrow meet will more in space
Effective compression and cooling electric arc increase arc resistance and improve arc voltage, and final realize extinguishes electric arc faster.
The arc quenching system and the breaker of a kind of breaker provided in this embodiment, by arc extinguishing system of circuit breaker structure
Improvement, enhance the arc extinction ability of arc-chutes, it is ensured that frame circuit breaker electrical endurance and disjunction in straight-flow system
Ability reaches relevant criterion requirement.Meanwhile AC system is also can apply to by putting into practice the breaker, equally can also it meet quickly
Extinguish the requirement of electric arc.
Structure, ratio, size etc. depicted in the embodiment of the present invention institute accompanying drawings, only coordinating specification to be taken off
The content shown is not limited to the enforceable qualifications of the present invention so that those skilled in the art understands and reads, therefore
Do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the present invention
Under the effect of can be generated and the purpose that can reach, it should all still fall and obtain the model that can cover in disclosed technology contents
In enclosing.Meanwhile cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", " counterclockwise " in this specification
Term, be merely convenient to being illustrated for narration, rather than to limit the scope of the invention, the change of relativeness or
Adjustment, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
Claims (11)
1. a kind of arc quenching system of breaker, it includes arc-chutes (1) and contact system (2), and the contact system (2) includes dynamic
Contact system (201) and static contact system (202), the engagement of the movable contact system (201) and static contact system (202) or point
The disconnected break-make for controlling breaker circuit, it is characterised in that：
The movable contact system (201) includes long moving contact component (201a), the long moving contact component both sides (201a) or one
Short moving contact component (201b) is arranged in side, and the long moving contact component (201a) and short moving contact component (201b) can be around same
One rotation center rotates, front and back dynamic equipped with preceding long movable contact (201a01) and rear length successively on the long moving contact component (201a)
Contact (201a02), the short moving contact component (201b) are equipped with short movable contact (201b01)；
The static contact system (202) includes static contact panel (202a), and the static contact panel (202a) is equipped with preceding stationary contact
(202a01) and rear stationary contact (202a02), the preceding stationary contact (202a01) is corresponding with preceding long movable contact (201a01),
Stationary contact (202a02) is corresponding with rear long movable contact (201a02) and short movable contact (201b01) after described；
The preceding stationary contact (202a01) is located at arc-chutes (1) inside, the rear stationary contact with the preceding long movable contact (201a01)
It is external that point (202a02), rear long movable contact (201a02) and short movable contact (201b01) are located at arc-chutes (1)；
In the movable contact system (201) and the static contact system (202) engaging process, the preceding stationary contact (202a01) with
Between the preceding long movable contact (201a01) prior to stationary contact (202a02) after described with it is described after long movable contact (201a02) and
It is contacted between short movable contact (201b01)；
In the movable contact system (201) and the static contact system (202) breaking course, the preceding stationary contact (202a01) with
After between the preceding long movable contact (201a01) after described stationary contact (202a02) with it is described after long movable contact (201a02) and
Disjunction between short movable contact (201b01).
2. a kind of arc quenching system of breaker as described in claim 1, it is characterised in that：Long dynamic silver point (201a02) after described
It is located at same level with short dynamic silver point (201b01), long dynamic silver point (201a01) is long after being located at before described moves silver point (201a02)
Above short dynamic silver point (201b01).
3. a kind of arc quenching system of breaker as described in claim 1, it is characterised in that：The arc-chutes (1) include it is left every
Plate (101) and right clapboard (102), arc extinguishing grid pieces group (103) both ends are inserted into the left clapboard (101) and right clapboard respectively
(102) on, arc extinguishing grid pieces group (103) upper end is equipped with top arc extinguishing grid pieces (104), the both ends of the top arc extinguishing grid pieces (104)
It is inserted on the left clapboard (101) and right clapboard (102), striking grid is equipped with above the top arc extinguishing grid pieces (104)
(105), the striking grid (105) is inserted on the left clapboard (101) and right clapboard (102), the arc extinguishing grid pieces group
(103) foot (103a01) is stretched out in front end both sides, and aerogenesis cover (106) is coated with foot (103a01) and is located at the top arc extinguishing grid pieces
(104) lower section, the preceding stationary contact (202a01) are located at the left clapboard (101), the right side with the preceding long movable contact (201a01)
In the spark chamber room that partition board (102), arc extinguishing grid pieces group (103) and aerogenesis cover (106) are formed.
4. a kind of arc quenching system of breaker as described in claim 1, it is characterised in that：The long moving contact component (201a)
It is longer than the short moving contact component (201b).
5. a kind of arc quenching system of breaker as claimed in claim 3, it is characterised in that：Arc extinguishing grid pieces group (103) packet
Several arc extinguishing grid pieces (103a) are included, are equidistantly arranged between several arc extinguishing grid pieces (103a), several arc extinguishing grid pieces
The horizontal distance of (103a) and the preceding stationary contact (202a01) gradually becomes remote since arc extinguishing grid pieces group (103) bottom is upwards,
Then it arrives in the middle part of arc extinguishing grid pieces group (103) and gradually becomes close, then become upwards and gradually remote in the middle part of arc extinguishing grid pieces group (103), most
It is in the figure of three to arrive striking grid (105) at the top of arc extinguishing grid pieces group (103) afterwards gradually to become closely.
6. a kind of arc quenching system of breaker as claimed in claim 3, it is characterised in that：Aerogenesis cover (106) inner cavity is
The figure of three corresponding with arc extinguishing grid pieces group (103).
7. a kind of arc quenching system of breaker as claimed in claim 3, it is characterised in that：Striking grid (105) draw
Arc end (105a) is three bending structures downwards, and the contact end (201a03) of the long moving contact component (201a) is in upper hook shape
When protrusion, the movable contact system (201) and the static contact system (202) disjunction, the arc end of the striking grid (105)
The current path of M shapes can be formed between the contact end (201a03) of (105a) and the long moving contact component (201a).
8. a kind of arc quenching system of breaker as claimed in claim 7, it is characterised in that：The long moving contact component (201a)
The outer profile of hook protrusion contact end (201a03) be triangular shaped, and front end wedge angle is obtuse angle, and wedge angle point is located at triangle
The contact end (201b02) of the middle and lower part position of shape, the short moving contact component (201b) is hook protrusion, the short moving contact
The outer profile of the hook protrusion contact end (201b02) of component (201b) is arc-shaped.
9. a kind of arc quenching system of breaker as described in claim 1, it is characterised in that：The front end of the static contact panel (202a)
Positioned at the front of preceding stationary contact (202a01) be equipped with arc leading angle (202a03), the rear end of the arc leading angle (202a03) with it is described before
Concordantly, the arc leading angle (202a03) is trapezoidal dovetail shaped to stationary contact (202a01), the width of the arc leading angle (202a03) from
The side that preceding stationary contact (202a01) is laterally away from positioned at preceding stationary contact (202a01) one becomes larger.
10. a kind of arc quenching system of breaker as described in claim 1, it is characterised in that：The preceding long movable contact
(201a01), rear long movable contact (201a02), short movable contact (201b01), preceding stationary contact (202a01), rear stationary contact
(202a02) is with corresponding long moving contact component (201a), short moving contact component (201b), static contact panel (202a) using identical
Or different materials is fabricated to split type or integral structure.
11. a kind of breaker, it is characterised in that：It includes the arc quenching system described in any one of the claims 1~10.
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| CN201810362522.4A CN108461364A (en) | 2018-04-20 | 2018-04-20 | A kind of arc quenching system and the breaker of breaker |
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| CN201810362522.4A CN108461364A (en) | 2018-04-20 | 2018-04-20 | A kind of arc quenching system and the breaker of breaker |
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