CN108417450A - Single-break direct-acting contactor - Google Patents
Single-break direct-acting contactor Download PDFInfo
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- CN108417450A CN108417450A CN201810399987.7A CN201810399987A CN108417450A CN 108417450 A CN108417450 A CN 108417450A CN 201810399987 A CN201810399987 A CN 201810399987A CN 108417450 A CN108417450 A CN 108417450A
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- slot
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- 230000003068 static effect Effects 0.000 claims abstract description 51
- 239000004020 conductor Substances 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims description 6
- 238000010891 electric arc Methods 0.000 description 28
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000002964 excitative effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
- H01H50/38—Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The present invention provides a kind of single-break direct-acting contactors, dynamic iron core is equipped in it, static iron core and contact are supported, the contact support is connected with the dynamic iron core, moving contact is actively equipped in the cavity that the contact is supported, the moving contact can be supported to move with the contact, and it can contact or detach with the static contact being fixed in single-break direct-acting contactor, the side of the moving contact is connected with flexible conductor by connecting plate, its other side is connected with dynamic arc striking piece, the flexible conductor is arranged by the connecting plate and the dynamic arc striking piece interval, quiet arc striking piece is connected on the static contact；The arc extinguishing structure positioned at the moving contact other side is additionally provided in the single-break direct-acting contactor, the arc extinguishing structure is located at the top of the quiet arc striking piece, and the dynamic arc striking piece is arranged towards the arc extinguishing structure.The single-break direct-acting contactor of the present invention, arc extinguishing ability is high, reliability height and long lifespan.
Description
Technical field
The present invention relates to contactor technical field more particularly to a kind of single-break direct-acting contactors.
Background technology
A kind of contactor control electric appliance big, wide as amount, is mainly used in control circuit, remote connection, disjunction
Disjunction etc. in circuit and control motor starting, stopping or operating, and can be with electrothermal relay appropriate or electronic protecting device
It is combined into motor starter, protects the circuit that may be overloaded, light industry is widely used in, metallurgy, chemical industry, coal mine, machinery, rises
The industries such as weight, railway, ship, communication.
Currently, existing single-break direct-acting contactor is placed on using double arc extinguishing chambers structure, moving contact and static contact
Centre that contact is supported and the fixed dynamic arc striking piece of moving contact and quiet arc striking piece is fixed using double arc leading angles with static contact, be
Ensure the action of direct acting up and down of contact, flexible conductor is fixed on contact plate, closer from silver point.
Existing single-break direct-acting contactor has the following problems：
1) arc leading angle can only upper and lower direct acting, striking distance opened by contactor away from determining, limits the arc extinguishing energy of contactor
Power.
2) although there are two arc-chutes for double arc extinguishing chambers structure, when contactor disjunction, electric arc can only be introduced into every time
In one arc-chutes, therefore only play the role of arc extinguishing there are one arc-chutes every time；In addition, when contactor is attracted, under flexible conductor
The arc-chutes of side can generate interference to flexible conductor, while when electric arc introduces the arc-chutes, can also generate ablation to the flexible conductor,
Lead to flexible conductor high temperature ageing, reduce the service life of flexible conductor, to reduce the service life of contactor.
Invention content
The object of the present invention is to provide a kind of single-break direct-acting contactors, and arc extinguishing ability is high, reliability height and service life
It is long.
Following technical proposal can be used to realize in the above-mentioned purpose of the present invention：
The present invention provides a kind of single-break direct-acting contactor, and interior dynamic iron core, static iron core and the contact of being equipped with is supported, described
Contact support is connected with the dynamic iron core, and actively equipped with moving contact in the cavity of contact support, the moving contact can be with
The contact supports movement, and can contact or detach with the static contact being fixed in single-break direct-acting contactor, described
The side of moving contact is connected with flexible conductor by connecting plate, and the other side is connected with dynamic arc striking piece, and the flexible conductor passes through described
Connecting plate is arranged with the dynamic arc striking piece interval, and quiet arc striking piece is connected on the static contact；The single-break Direct Action Type contact
The arc extinguishing structure positioned at the moving contact other side is additionally provided in device, the arc extinguishing structure is located at the top of the quiet arc striking piece,
The dynamic arc striking piece is arranged towards the arc extinguishing structure.
In embodiments of the present invention, the moving contact is connected to the contact by elastic component and supports, described
In the state of moving contact and the static contact disjunction, the dynamic arc striking piece, can be towards separate under the pressure effect of the flexible conductor
The direction of the arc extinguishing structure deviates.
In embodiments of the present invention, the dynamic arc striking piece has dynamic striking elevation angle end, and the dynamic striking elevation angle end is set
There are the first dynamic striking slot, the first dynamic striking slot to be arranged towards the arc extinguishing structure.
In embodiments of the present invention, the second dynamic striking slot, the second dynamic striking are additionally provided on the dynamic arc striking piece
The one side towards the static contact in the dynamic arc striking piece is arranged in slot.
In embodiments of the present invention, the dynamic arc striking piece has the first guide groove, the cavity tool that the contact is supported
There is the second guide groove, first guide groove coordinates with second guide groove, so that the dynamic arc striking piece can be movably arranged
In the cavity that the contact is supported.
In embodiments of the present invention, connecting plate is also associated on the static contact, the quiet arc striking piece is located at described
The top of connecting plate.
In embodiments of the present invention, the quiet arc striking piece has quiet striking elevation angle end, and the quiet striking elevation angle end is set
There are the first quiet striking slot, the first quiet striking slot to be arranged towards the arc extinguishing structure.
In embodiments of the present invention, the quiet striking elevation angle end is additionally provided with the second quiet striking slot, and described second quiet draws
Arc slot is connected with the described first quiet striking slot, the second quiet striking slot be opened on the quiet striking elevation angle end up and down
The straight slot of perforation.
In embodiments of the present invention, the arc extinguishing structure includes：Arc-chutes and setting are between the arc extinguishing is indoor
Every multiple arc extinguishing grid pieces of setting, there is the arc extinguishing grid pieces striking slot, the striking slot to be arranged towards the dynamic arc striking piece.
In embodiments of the present invention, the striking slot includes the first striking slot and the second striking slot, and described second draws
Arc slot is the groove for being opened in the first striking slot slot bottom.
The characteristics of single-break direct-acting contactor of the present invention and advantage are：The single-break direct-acting contactor of the present invention,
Its flexible conductor is fixed on the connecting plate for being connected to moving contact, and the connecting pin distance of the flexible conductor and connecting plate, which moves arc striking piece, one
Fixed distance, when the single-break direct-acting contactor disjunction, flexible conductor will produce flexible deformation, to coupled connecting plate
Certain lever force is generated, the dynamic arc striking piece towards arc extinguishing structure is enable to generate certain deviation angle relative to the center of moving contact
Degree, increases striking distance, so compared with the existing technology, the higher that arc extinguishing structure of the invention can be done, arc extinguishing grid pieces
Quantity can be more, greatly improve arc extinguishing ability.Compared with the existing technology, there is no arc extinguishing knot below flexible conductor of the invention
Structure ensure that flexible conductor is supported with flexible motion to increase with contact also without the parts of other influences flexible conductor action
The reliability of contactor.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural schematic diagram of the single-break direct-acting contactor of the present invention.
Fig. 2 is the attachment structure schematic diagram of the moving contact of the present invention, static contact and arc extinguishing structure.
Fig. 3 is the attachment structure schematic diagram of the moving contact of the present invention, connecting plate and dynamic arc striking piece.
Fig. 4 is the structural schematic diagram of the dynamic arc striking piece of the present invention.
Fig. 5 is the structural schematic diagram for the cavity that the contact of the present invention is supported.
Fig. 6 is the structural schematic diagram for the cavity cooperation that the dynamic arc striking piece of the present invention is supported with contact.
Fig. 7 is the attachment structure schematic diagram of the static contact of the present invention, quiet arc striking piece and connecting plate.
Fig. 8 is the structural schematic diagram of the quiet arc striking piece of the present invention.
Fig. 9 is the structural schematic diagram of the arc extinguishing structure of the present invention.
Figure 10 is the structural schematic diagram of the arc extinguishing grid pieces of the arc extinguishing structure of the present invention.
Drawing reference numeral explanation：1, dynamic iron core；2, static iron core；3, contact is supported；31, cavity；311, the second guide groove；312、
Guide part；4, moving contact；41, connecting plate；42, flexible conductor；43, arc striking piece is moved；431, striking elevation angle end；432, interconnecting piece；
433, the first dynamic striking slot；434, the second dynamic striking slot；435, the first guide groove；436, connecting hole；44, elastic component；5, stationary contact
Head；51, quiet arc striking piece；511, quiet striking elevation angle end；512, the first quiet striking slot；513, the second quiet striking slot；52, connecting plate；
6, arc extinguishing structure；61, arc-chutes；62, arc extinguishing grid pieces；621, striking slot；622, the first striking slot；623, the second striking slot；7、
Coil；8, spring；10, shell；101, connecting plate.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of single-break direct-acting contactor, it is interior to be equipped with dynamic iron core 1, static iron core 2
3 are supported with contact, and the contact supports that 3 are connected with the dynamic iron core 1, is actively equipped in the cavity 31 of the contact support 3
Moving contact 4, the moving contact 4 can with the contact support 3 movement, and can be fixed in single-break direct-acting contactor
The contact of static contact 5 or separation, the side of the moving contact 4 is connected with flexible conductor 42, other side connection by connecting plate 41
There are arc striking piece 43, the flexible conductor 42 to be arranged by the connecting plate 41 and the dynamic arc striking piece 43 interval, the static contact 5
On be connected with quiet arc striking piece 51；The arc extinguishing positioned at 4 other side of the moving contact is additionally provided in the single-break direct-acting contactor
Structure 6, the arc extinguishing structure 6 are located at the top of the quiet arc striking piece 51, and the dynamic arc striking piece 43 is set towards the arc extinguishing structure 6
It sets.When moving contact 4 moves upwards, during being detached with static contact 7, the connecting plate 41 of 4 side of moving contact is by flexible conductor 42
It pulls and tilts down movement, the 43 upward banking motion of dynamic arc striking piece of 4 other side of moving contact.
Specifically, there is the single-break direct-acting contactor shell 10, dynamic iron core 1, static iron core 2, contact to support 3, move and touch
First 4, static contact 5 and arc extinguishing structure 6 are respectively positioned in shell 10.Wherein, static iron core 2 is fixed in shell 10, static iron core 2
Outside is equipped with coil 7, and dynamic iron core 1 is located at the top of static iron core 2, is connected to contact and supports on 3, dynamic iron core 1 and shell 10 it
Between be folded with resetting spring 8；Moving contact 4 is arranged in the cavity 31 that contact supports 3, and in the present invention, the upper end of moving contact 4 is logical
It crosses elastic component 44 to be connected in contact support 3, which may be, for example, spring, and moving contact 4 can support 3 movements with contact；
Static contact 5 is fixed in shell 10, and between moving contact 4 and dynamic iron core 1, which can contact with moving contact 4
Or separation.
As shown in Figures 2 and 3, the side of moving contact 4 is connected with connecting plate 41, one end and 41 phase of connecting plate of flexible conductor 42
Even, the other end of flexible conductor 42 is connected with the connecting plate 101 for being connected with power outlet end；The other side of moving contact 4 connects
There is arc striking piece 43, which is fixed on connecting plate 41 and forms an overall structure with moving contact 4, moving contact 4,
Connecting plate 41 and dynamic arc striking piece 43 by technology mode welding or riveting such as can be fixed together.In the present embodiment, such as
Shown in Fig. 4, moving arc striking piece 43 has integrally formed striking elevation angle end 431 and interconnecting piece 432, the striking elevation angle end 431 opposite
Interconnecting piece 432 is arranged towards arc extinguishing structure 6 to curving, which tilts upward, namely towards remote
Upper end end bending setting from arc extinguishing structure 6, wherein the striking elevation angle end 431 is equipped with the first dynamic striking slot 433, this first
Dynamic striking slot 433 is the groove being arranged in 431 lower surface of striking elevation angle end, is arranged towards arc extinguishing structure 6.
The moving contact 4 is used for carrying electric current, and the striking elevation angle end 431 of the dynamic arc striking piece 43 is used to be oriented to the movement side of electric arc
To so that electric arc to be introduced into arc extinguishing structure 6, which can pull electric arc longer, make arc motion more
It is smooth, it is conducive to the extinguishing of electric arc.When contactor disjunction, the electric arc of generation can be along be arranged on striking elevation angle end 431
One dynamic striking slot 433 enters arc extinguishing structure 6, which will produce certain magnetic blow-out effect, allow electric arc faster,
It is more easily introduced in arc extinguishing structure 6.
Further, it is additionally provided with the second dynamic striking slot 434 on the interconnecting piece 432 of dynamic arc striking piece 43, the second dynamic striking
Slot 434 is arranged on moving one side of the interconnecting piece 432 of arc striking piece 43 towards static contact 5.In the present embodiment, the second dynamic striking
Slot 434 is two, sets up opposite both sides before and after interconnecting piece 432 separately, and the middle part of interconnecting piece 432 is formed with to be inserted into for moving contact 4
Connecting hole 436.The second dynamic striking slot 434 supports 3 for preventing electric arc to be introduced in contact.
Further, please refer to shown in Fig. 5 and Fig. 6, dynamic arc striking piece 43 also has the first guide groove 435, contact
Support 3 cavity 31 that there is the second guide groove 311, first guide groove 435 and the second guide groove 311 to coordinate, so that dynamic striking
Piece 43 can be movably arranged in the cavity 31 that contact supports 3.Three cavitys 31 are delineated in Fig. 5, are respectively used to three groups not
Same moving contact 4, the present invention are only illustrated by taking a cavity 31 as an example.In the present embodiment, in the connection of dynamic arc striking piece 43
It being set in portion 432 there are two the first guide groove 435, two the first guide grooves 435 set up opposite both sides before and after interconnecting piece 432 separately,
The contact is supported to be equipped with two the second guide grooves 311 being oppositely arranged in 3 each cavity 31, in each second guide groove 311
Portion is equipped with guide part 312, and when dynamic arc striking piece 43 moves in cavity 31, the first guide groove 435 can be in the second guide groove 311
It being moved along guide part 312, the first guide groove 435 and the second guide groove 311 can play the role of limiting dynamic arc striking piece 43, from
And enable moving contact 4 contact support 3 cavity 31 in smooth movement.When moving contact 4 is in the cavity 31 that contact supports 3
When movement, movement locus is more accurate, and when moving contact 4 and static contact 5 are closed, contact position is more nearly Theoretical Design
Central area is contacted, reduces centre deviation when moving contact 4 and the closure of static contact 5, ensures maximum contact area, to subtract
Small contact resistance reduces temperature rise during use, reduces electric energy loss.
In the present invention, flexible conductor 42 is arranged by connecting plate 41 and the interval of dynamic arc striking piece 43, since moving contact 4 passes through bullet
Property part 44 be connected to contact and support on 3, in moving contact 4 and when 5 disjunction of static contact, which can be in the pressure of flexible conductor 42
Under force effect, deviated towards the direction far from arc extinguishing structure 6.That is, when moving contact 4 moves detached with static contact 5 upward, moves and touch
First 4 can drive connecting plate 41 to move up, and then flexible conductor 42 can be made to compress and generate elastic force, and flexible conductor 42 pushes connecting plate 41, because
The fixed position of flexible conductor 42 and connecting plate 41 generates lever force to having a certain distance between dynamic arc striking piece 43, to moving contact 4,
The spring energy that flexible conductor 42 generates drives the striking elevation angle end 431 for moving arc striking piece 43 to be upturned by connecting plate 41, and being equivalent to makes
Striking elevation angle end 431 is tilted towards the direction far from arc extinguishing structure 6, to which electric arc is elongated, can be reached and faster be extinguished electric arc
Purpose.
As shown in fig. 7, being connected with quiet arc striking piece 51 on static contact 5, connecting plate 52 is also associated on the static contact 5, it is quiet to draw
Arcs 51 are located at the top of connecting plate 52, which is fixed on connecting plate 52 and forms an entirety with static contact 5
Structure, static contact 5, quiet arc striking piece 51 and connecting plate 52 such as can by welding or riveting technology mode be fixed together.It is quiet
Arc striking piece 51 and connecting plate 52 are located at the lower section of arc extinguishing structure 6.
Shown in Fig. 8, which has quiet striking elevation angle end 511, on the quiet striking elevation angle end 511
Equipped with the first quiet striking slot 512, which is the groove for being opened in 511 upper surface of quiet striking elevation angle end, court
It is arranged to arc extinguishing structure 6.Further, it is additionally provided with the second quiet striking slot 513 on the quiet striking elevation angle end 511, this second quiet draws
Arc slot 513 is connected with the first quiet striking slot 512, and in the present embodiment, which is to be opened in quiet striking to face upward
Straight slot up and down on angle end 511.
For carrying electric current, the quiet striking elevation angle end 511 of the quiet arc striking piece 51 is arranged the static contact 5 towards arc extinguishing structure 6,
It is used to be oriented to the direction of motion of electric current, so that electric arc to be introduced into arc extinguishing structure 6, makes electric arc be easy to extinguish, connecting plate 52
For being connected with power inleting terminal；When moving contact 4 and 5 disjunction of static contact, the electric arc of generation can be along quiet striking elevation angle end 511
On the first quiet striking slot 512, the second quiet striking slot 513 enters in arc extinguishing structure 6.The quiet striking elevation angle of the quiet arc striking piece 51
End 511 and 512 and second quiet striking slot 513 of the first quiet striking slot thereon can reach and pull electric arc longer, makes electric arc
Moving more smoothly purpose, wherein 512 and second quiet striking slot 513 of the first quiet striking slot can generate certain magnetic blow-out effect,
Electric arc is allowed faster, to be more easily introduced in arc extinguishing structure 6.
As shown in figure 9, arc extinguishing structure 6 is located at the top of quiet arc striking piece 51 comprising arc-chutes 61 and setting are in arc-chutes
Spaced multiple arc extinguishing grid pieces 62 in 61, arc extinguishing grid pieces 62 have striking slot 621, and striking slot 621 is towards dynamic arc striking piece
43 settings.In the present embodiment, 62 lateral separation of multiple arc extinguishing grid pieces is positioned in arc-chutes 61, and it is most lower to be located at arc extinguishing structure 6
The arc extinguishing grid pieces 62 in face are located at the top of quiet arc striking piece 51, and the striking slot 621 of arc extinguishing grid pieces 62 is arranged towards dynamic arc striking piece 43.
In the present invention, as shown in Figure 10, striking slot 621 include the first striking slot 622 and the second striking slot 623, first
Striking slot 622 is the groove for being opened in 62 side of arc extinguishing grid pieces, and the second striking slot 623 is to be opened in 622 slot bottom of the first striking slot
Groove, the first striking slot 622 is connected with the second striking slot 623.The first striking slot 622 and the second striking slot 623 are advantageous
In the introducing of electric arc, it can ensure the arc extinguishing ability of product, effectively extinguish electric arc.
The arc-chutes 61 of arc extinguishing structure 6 can play the role of insulating effect and fixed arc extinguishing grid pieces 62, the arc extinguishing grid pieces 62
For breaking arc, and help to extinguish electric arc.
The course of work of the single-break direct-acting contactor is as follows：
When coil 7 is powered, according to Maxwell's electromagnetic principle, under the excitatory effect that coil 7 generates, 1 He of dynamic iron core
It will produce electromagnetic attraction between static iron core 2, dynamic iron core 1 can overcome the counter-force of resetting spring 8 to be moved towards static iron core 2, to band
Moving contact supports 3 movements, contact to support 3 to drive moving contact 4 to move downward immediately, so that moving contact 4 is contacted with static contact 5, at this time
Contact supports that 3 continue traveling downwardly, and moving contact 4 slides in the cavity 31 that contact supports 3, until dynamic iron core 1 and static iron core 2 are closed completely
It is combined into only.
Due to elastic component 44 moving contact 4, static contact 5 connect after flexible deformation occurs so that moving contact 4, static contact 5 it
Between generate certain pressure and overtravel.Above procedure realizes the connection circuit of contactor, makes electrical equipment (such as：Motor
Deng) realize the function of being powered and operate.
When 7 dead electricity of coil, according to Maxwell's electromagnetic principle, the excitatory disappearance of coil 7, dynamic iron core 1 and static iron core 2 it
Between electromagnetic attraction disappear, dynamic iron core 1 pushes contact to support 3 to move upwards under the action of resetting spring 8, and moving contact 4 is touching
Head is supported to slide in 3 cavity 31 so that moving contact 4 and 5 disjunction of static contact, moving contact 4 move upwards certain distance (that is,
Clearance between open contacts) it is in the position of disjunction limit afterwards.As shown in the electric arc path line F of Fig. 2, the electric arc meeting that is generated in breaking course
It enters in arc extinguishing structure 6 along the 512 and second quiet striking slot 513 of the first quiet striking slot of quiet arc striking piece 51, is then elongated
To the dynamic striking elevation angle end 431 of dynamic arc striking piece 43, at this point, electric arc is cut off by multiple arc extinguishing grid pieces 62 in arc extinguishing structure 6, then
Extinguish.
The present invention single-break direct-acting contactor, have it is simple in structure, processing cost is low, contact temperature rise low, reliability
The features such as high.The present invention uses single-break unilateral side arc quenching method, and when moving contact 4 and 5 disjunction of static contact, the electric arc of generation can be by
According to dynamic arc striking piece 43, quiet arc striking piece 51 assigned direction be rapidly introduced into arc extinguishing structure 6 carry out it is cooling, extinguish.The single-break is straight
Dynamic formula contactor is cheap, can be relatively low in some operating frequencies, bears to use under the relatively low environment of duty factor, so as to
To substitute the use occasion that can cause performance surplus using conventional double breaking points direct-acting contactor in some industries.
The present invention eliminates the arc extinguishing being arranged at 42 end of flexible conductor compared to the arc extinguishing structure of single-break bilateral arc-chutes
Room, which reduces the length of flexible conductor 42, and without the blocking of arc-chutes at flexible conductor 42, flexible conductor 42 can be more
Add flexibly in shell 10 as contact supports 3 to move up and down, without having interference and obstruction.The arc extinguishing structure 6 of the present invention
Set up separately in the both sides of moving contact 4 with flexible conductor 42, because in 42 side of flexible conductor, is not provided with arc-striking structure on moving contact 4, institute
It will not be sprayed to 42 side of flexible conductor with electric arc, scaling loss will not be caused to flexible conductor 42 and caused by the high temperature of electric arc
Flexible conductor 42 hardening, to improve the service life of flexible conductor 42.
In the present invention, the dynamic arc striking piece 43 being connected on moving contact 4 and the quiet arc striking piece 51 being connected on static contact 5 are adopted
Quickly electric arc can be introduced into arc extinguishing structure 6 with rational arc-striking structure, while the arc extinguishing grid pieces 62 of arc extinguishing structure 6
The arc extinguishing ability that can ensure arc extinguishing structure 6 can realize the quick extinguishing of electric arc.In addition, because the striking of dynamic arc striking piece 43
Elevation angle end 431 is upturned, and compared to the contact of no tilting, can increase the quantity of arc extinguishing grid pieces 62, to improve arc extinguishing structure 6
Arc extinguishing ability.
Contactor of the present invention relative to conventional double break point-contactor or single-break bilateral arc-chutes, contacts realizing
Under the premise of device identical function, the structure of the single-break direct-acting contactor of specific unilateral arc extinguishing structure of the invention is simpler
Single, number of parts is less, reliability higher.More economic benefits can be brought in specific occasion, it is unnecessary to reduce
Waist performance and waste of material, save social resources.Volume smaller of the present invention saves material, reduces manufacturing cost.
The foregoing is merely several embodiments of the present invention, and those skilled in the art is according to application documents disclosure
Various changes or modifications can be carried out without departing from the spirit and scope of the present invention to the embodiment of the present invention.
Claims (10)
1. a kind of single-break direct-acting contactor, interior dynamic iron core, static iron core and the contact of being equipped with supports that the contact is supported and institute
It states dynamic iron core to be connected, moving contact is actively equipped in the cavity that the contact is supported, the moving contact can be supported with the contact
It is mobile, and can contact or detach with the static contact being fixed in single-break direct-acting contactor, which is characterized in that it is described dynamic
The side of contact is connected with flexible conductor by connecting plate, and the other side is connected with dynamic arc striking piece, and the flexible conductor passes through the company
Fishplate bar is arranged with the dynamic arc striking piece interval, and quiet arc striking piece is connected on the static contact；The single-break direct-acting contactor
It is inside additionally provided with the arc extinguishing structure positioned at the moving contact other side, the arc extinguishing structure is located at the top of the quiet arc striking piece, institute
Arc striking piece is stated towards the arc extinguishing structure to be arranged.
2. single-break direct-acting contactor as described in claim 1, which is characterized in that the moving contact is connected by elastic component
In contact support, in the moving contact and in the state of the static contact disjunction, the dynamic arc striking piece soft is led described
Under the pressure effect of body, it can be deviated towards the direction far from the arc extinguishing structure.
3. single-break direct-acting contactor as claimed in claim 1 or 2, which is characterized in that the dynamic arc striking piece has dynamic draw
Arc elevation angle end, the dynamic striking elevation angle end are equipped with the first dynamic striking slot, and the first dynamic striking slot is set towards the arc extinguishing structure
It sets.
4. single-break direct-acting contactor as claimed in claim 3, which is characterized in that be additionally provided with second on the dynamic arc striking piece
The one side in the dynamic arc striking piece towards the static contact is arranged in dynamic striking slot, the second dynamic striking slot.
5. single-break direct-acting contactor as claimed in claim 3, which is characterized in that the dynamic arc striking piece has first to be oriented to
Slot, the cavity that the contact is supported have the second guide groove, and first guide groove coordinates with second guide groove, so that institute
Stating arc striking piece can be movably arranged in the cavity that the contact is supported.
6. single-break direct-acting contactor as described in claim 1, which is characterized in that be also associated with connection on the static contact
Plate, the quiet arc striking piece are located at the top of the connecting plate.
7. single-break direct-acting contactor as claimed in claim 6, which is characterized in that there is the quiet arc striking piece quiet striking to face upward
Angle end, the quiet striking elevation angle end are equipped with the first quiet striking slot, and the first quiet striking slot is arranged towards the arc extinguishing structure.
8. single-break direct-acting contactor as claimed in claim 7, which is characterized in that the quiet striking elevation angle end is additionally provided with
Two quiet striking slots, the second quiet striking slot are connected with the described first quiet striking slot, and the second quiet striking slot is to be opened in
Straight slot up and down on the quiet striking elevation angle end.
9. single-break direct-acting contactor as described in claim 1, which is characterized in that the arc extinguishing structure includes：Arc-chutes
And setting, in the indoor spaced multiple arc extinguishing grid pieces of the arc extinguishing, the arc extinguishing grid pieces have striking slot, the striking
Slot is arranged towards the dynamic arc striking piece.
10. single-break direct-acting contactor as claimed in claim 9, which is characterized in that the striking slot includes the first striking
Slot and the second striking slot, the second striking slot are the groove for being opened in the first striking slot slot bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399987.7A CN108417450A (en) | 2018-04-28 | 2018-04-28 | Single-break direct-acting contactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810399987.7A CN108417450A (en) | 2018-04-28 | 2018-04-28 | Single-break direct-acting contactor |
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| Publication Number | Publication Date |
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| CN108417450A true CN108417450A (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810399987.7A Pending CN108417450A (en) | 2018-04-28 | 2018-04-28 | Single-break direct-acting contactor |
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Effective date of registration: 20240531 Address after: 301800 No. 17-1 Chaoyang East Road, Koudong Industrial Park, Baodi Economic Development Zone, Baodi District, Tianjin, China Applicant after: SOOAR (TIANJIN) ELECTRICAL EQUIPMENT Co.,Ltd. Country or region after: China Address before: 301800 No. 18 Chaoyang East Road, Baodi Plastic Products Industrial Zone, Baodi District, Tianjin City Applicant before: TIANJIN JINGREN ELECTRICAL Co.,Ltd. Country or region before: China |