CN107146723A - A kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker - Google Patents
A kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker Download PDFInfo
- Publication number
- CN107146723A CN107146723A CN201710570915.XA CN201710570915A CN107146723A CN 107146723 A CN107146723 A CN 107146723A CN 201710570915 A CN201710570915 A CN 201710570915A CN 107146723 A CN107146723 A CN 107146723A
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- Prior art keywords
- arc
- out system
- blowout coil
- breaker
- magnetic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The invention provides a kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker, the blowout coil of arc-chutes is blown to including the electric arc for being produced between the moving contact and static contact by breaker, the blowout coil is arranged at the diverter branch of the breaker major loop with setting electric current, or, it is series at the breaker major loop with setting electric current.Moving contact has electric current to flow through generation magnetic flux from blowout coil when connecting circuit with static contact.When contact disconnects generation electric arc, blowout coil by the magnetic flux of generation can promote electric arc to be moved to arc-chutes because of electric current, the technical program is simple in construction, it can adapt to the less application scenario of electric current, and line end polarity no requirement (NR) is docked, the predicament for being difficult to disjunction low current is solved, DC-AC occasion is can apply to, the requirement to miniature circuit breaker such as photovoltaic generating system is met, the demand of new energy industry future development has been adapted to.
Description
Technical field
The present invention relates to field low voltage electrical apparatus technology field, and in particular to a kind of magnetic blow-out system, present invention design one simultaneously
Plant Arc Distinguishing Device for Circuit Breakers, single-pole circuit breaker and multipole circuit breaker.
Background technology
Electric arc is a kind of gas discharge phenomenon, and the moving contact and static contact in device for switching can produce electric arc when disconnecting.
Electric arc is the highly conductive free gas of high temperature, and it not only has very big destruction to contact, and makes the time of disconnecting circuit
Extension, the safe operation to power supply-distribution system has a great impact.
Pushing electric arc to arc-chutes realization with externally-applied magnetic field forces arc extinguishing to be the common arc extinguishing means of low-voltage electrical apparatus.Straight
Stream field is generally used as externally-applied magnetic field using permanent magnet at present.Wiring has polarity during the product of such a structure type is practical,
If wiring error, electric arc can be pushed away arc-chutes on the contrary, serious quality accident can be caused.And the sense of current can not be applied to
Reverse recurrent application scenario, such as photovoltaic system.
Publication No. CN104124118B patent of invention discloses a kind of dc circuit breaker magnetic blow-out device, including is arranged on
The static side arc leading angle and moved end arc leading angle at arc-chutes two ends；The static side magnetic blow-out that two ends are connected with static side arc leading angle and static contact respectively
Coil；The moved end blowout coil that two ends are connected with moved end arc leading angle and by wire with moving contact respectively.Static side arc leading angle with it is quiet
Contact has gap, and moved end arc leading angle has gap with moving contact.
Although the breaker arc blow-out magnetic direction in above-mentioned patent can automatically occur corresponding with the change of main circuit current
Change, but with certain limitation.Above-mentioned breaker is only when arc transfer is to dynamic (quiet) end arc leading angle, and electric arc will be dynamic
(quiet) contact, dynamic (quiet) end arc leading angle are cascaded with dynamic (quiet) end blowout coil, and electric current flows through blowout coil and induces magnetic
.But if when arc current is for critical current or less than critical current, electric arc can be then rested between dynamic/static contact, its
Blowout coil no current passes through, and magnetic blow-out effect failure, electric arc sustained combustion is easily caused the generation of quality accident.Therefore it is above-mentioned
Breaker has larger rated current, and application scenario has certain limitation, it is impossible to adapt to the application scenario of low current.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome application scenario of the prior art limited, it is impossible to adapt to
Low current application scenario defect, so as to provide a kind of magnetic blow-out system.
The invention solves the problems that another technical problem be to overcome application scenario of the prior art limited, it is impossible to adapt to
Low current application scenario defect, so as to provide a kind of arc-control device.
The invention solves the problems that another technical problem be to overcome application scenario of the prior art limited, it is impossible to adapt to
Low current application scenario defect, so as to provide a kind of single-pole circuit breaker.
The invention solves the problems that another technical problem be to overcome application scenario of the prior art limited, it is impossible to adapt to
Low current application scenario defect, so as to provide a kind of multipole circuit breaker.
The invention provides a kind of magnetic blow-out system, including the electricity for being produced between the moving contact and static contact by breaker
Arc is blown to the blowout coil of arc-chutes, and the blowout coil is arranged at the shunting branch of the breaker major loop with setting electric current
Road, or, it is series at the breaker major loop with setting electric current.
Optionally, the breaker correspondence moving contact is provided with the dynamic terminals for external first connecting line, institute
Stating blowout coil and being parallel in the breaker major loop between the moving contact and the dynamic terminals has setting resistance
Parts both sides.
Optionally, the moving contact is connected by the first soft strength, bimetal leaf with the dynamic terminals, the magnetic blow-out line
Circle two ends are connected to the bimetal leaf two ends.
Optionally, the bimetal leaf is connected by plate and terminal plate with the dynamic terminals, the blowout coil
One end is connected by arc leading angle, the second soft strength with the moving contact；The other end is connected by fixed plate with the plate, shape
Into diverter branch, the bimetal leaf is installed on the fixed plate.
Optionally, the breaker correspondence moving contact is provided with the dynamic terminals for external first connecting line, institute
State the breaker major loop that blowout coil is series between the moving contact and the dynamic terminals.
Optionally, one end of the blowout coil is connected by the second soft strength with the moving contact, and the other end passes through double
Sheet metal, the 3rd soft strength, terminal plate are connected with the dynamic terminals.
Optionally, one end of the blowout coil is connected by the second soft strength with the moving contact；The other end passes through double
Sheet metal, resistance wire, terminal plate are connected with the dynamic terminals.
Optionally, the blowout coil is formed by enamel-covered wire coiling, and the magnetic blow-out system also includes being made up of ferromagnetic material
Yoke, the yoke skewer enters among blowout coil, and is insulated with the blowout coil.
Optionally, the yoke two ends are relatively set with the magnetic conductive board that electric arc is oriented to arc-chutes, the magnetic conductive board and institute
State yoke contact.The magnetic flux that the blowout coil is produced is assigned to the electric arc of arc motion by the yoke and the magnetic conductive board
On passage, to promote electric arc to be moved to the arc-chutes direction.
Optionally, the magnetic conductive board opposite flank is provided with insulation board, and the insulation board is by heated aerogenesis and resistant to elevated temperatures
Thermoplastic is made.
Optionally, bead structures are set on the insulation board, and the rib Cheese that interlocks is added in the arc channel formation fan
Palace formula arc extinguishing structure.
Optionally, the insulation board has accommodating cavity, the accommodating cavity of the fixedly embedded insulation board of magnetic conductive board
In.
Invention also provides a kind of arc-control device, including the magnetic blow-out system described in any of the above-described.
Present invention also offers a kind of single-pole circuit breaker, including above-mentioned arc-control device.
Present invention also offers a kind of multipole circuit breaker, including multiple assembled above-mentioned single-pole circuit breakers, the adjacent list
Shielding piece is provided between the breaker of pole.
Technical solution of the present invention, has the following advantages that：
1. a kind of magnetic blow-out system that the present invention is provided, moving contact has electric current from blowout coil when circuit is connected with static contact
Flow through generation magnetic flux.When the separated generation electric arc of moving contact and static contact, the magnetic flux that blowout coil is produced can promote electricity
Arc is moved to arc-chutes, and the technical program is simple in construction, can adapt to the less application scenario of electric current, solves that to be difficult to disjunction small
The predicament of electric current, meets the requirement to miniature circuit breaker such as photovoltaic generating system, has adapted to the need of new energy industry future development
Ask.In addition, by emi analysis, in the technical program, regardless of current direction, electric arc is produced by blowout coil
Raw magnetic blow-out power pushes electric arc to arc-chutes, therefore docking line end polarity no requirement (NR), can apply to DC-AC occasion.
2. a kind of magnetic blow-out system that the present invention is provided, magnetic blow-out system is also comprising two insulation boards, and insulation board is by aerogenesis and resistance to
High-temperature material is made, and it is placed on the top of two magnetic conductive boards.It is so designed that, contact of the insulation board except isolation electric arc with magnetic conductive board
Outside, insulating materials can produce gas and both strengthen the effect of brushing to electric arc, and can both accelerate motion of the electric arc to arc-chutes, again
Sizable heat in electric arc is absorbed, accelerates the movement velocity of electric arc, increases arc voltage, to accelerating arc extinction extremely to have
Profit.
3. it is provided with bead structures on a kind of magnetic blow-out system that the present invention is provided, two insulation boards.It is so designed that, after combination
Two insulation boards bead structures it is interlaced on the passage of arc motion, form labyrinth type arc extinguishing, further elongate electricity
The movement locus of arc, further increases arc voltage, accelerates the extinguishing of electric arc.So as to improve the disjunction energy of short circuit current flow
Power, solves the predicament for being difficult to disjunction low current again.
4. a kind of magnetic blow-out system that the present invention is provided, can be by changing bimetal leaf according to the size of rated operational current
The change (serial or parallel connection) for coupling form with bimetal leaf with the first soft strength resistance value size or magnet exciting coil is encouraged to adjust
The size of magnetoelectricity stream, so that the regulation and control to the magnetic field intensity produced by blowout coil are realized, to avoid the magnetic in big rated current
Field intensity is excessive, the too small defect of low current magnetic field intensity.
4. a kind of multipole circuit breaker that the present invention is provided, to adapt to direct current 250V, 500V, 1000, the need of 1500V voltages
Will, multiple single-pole circuit breakers should be connected assembled, shielding piece is provided between adjacent monopoles breaker, broken with shielding two
Road device is due to the influence between the counter magnetic flux caused by the difference of the sense of current.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of structural representation for single-pole circuit breaker embodiment that Fig. 1 provides for the present invention；
The structural representation for another single-pole circuit breaker embodiment that Fig. 2 provides for the present invention；
The structural representation for another single-pole circuit breaker embodiment that Fig. 3 provides for the present invention；
Fig. 4 is the structural representation of Fig. 1 magnetic blow-out systems into Fig. 3；
Fig. 5 is the structural representation of magnetic conductive board in magnetic blow-out system；
Fig. 6 is the structural representation of insulation board in magnetic blow-out system；
A kind of structural representation for multipole circuit breaker that Fig. 7 provides for the present invention.
Description of reference numerals：
1- insulation boards, 2- magnetic conductive boards, 3- yokes, 4- blowout coils, 5- plates, 6- fixed plates, 7- terminal plates, the double gold of 8-
Belong to piece, 9- arc leading angles, the soft strengths of 10- first, the terminal screws of 11- first, the soft strengths of 12- second, 13- moving contacts, 14- stationary contacts
Head, 15- magnet coils, the terminal screws of 16- second, 17- arc-chutes, 18- shielding piece, the soft strengths of 19- the 3rd, 20- resistance wires,
101- accommodating cavities, 102- bead structures, 103- arc channels.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
It is 16A-63A that single-pole circuit breaker shown in Fig. 1, which is applicable current range, and the single-pole circuit breaker includes moving contact 13 and quiet
Contact 14, and the first terminal screw 11 and the second terminal screw 16 that correspondence moving contact 13 and static contact 14 are set.First connects
The i.e. dynamic terminals of the terminal screw 16 of line screw 11 and second and quiet terminals.16 points of first terminal screw 11 and the second terminal screw
Single-pole circuit breaker external the first connecting line and the second connecting line Yong Yu not connected.Moving contact 13 passes through the first soft strength 10, double
Sheet metal 8, plate 5, terminal plate 7, the first terminal screw 11 are turned on external first connecting line.Static contact 14 connects by second
Line screw 16 is turned on external second connecting line, and the magnet coil 15 for dropout is also associated between the two.The He of moving contact 13
When the contact of static contact 14 is closed a floodgate, external first connecting line and the second connecting line are turned on.Second connecting line, the second terminal screw 16,
Static contact 14, moving contact 13, the first terminal screw 11 and the loop of the first connecting line conducting are referred to as breaker major loop.
Electric arc can be produced when moving contact 13 and the disconnection of static contact 14, is that this single-pole circuit breaker is additionally provided with for arc extinguishing
Arc-control device.The arc-control device includes magnetic blow-out system and arc-chutes 17.Magnetic blow-out system be used for by electric arc be blown to arc-chutes 17 so as to
Realize fast arc extinction.Arc-chutes 17 can select suitable type according to physical condition.
Magnetic blow-out system includes being arranged at the yoke 3 and blowout coil 4 near moving contact 13.Yoke 3 is by ferromagnetic material system
Into cylindrical-shaped structure, positioned at the side of arc leading angle 9, its periphery is wound with blowout coil 4.Blowout coil 4 is formed by enamel-covered wire coiling
And insulated with yoke 3, the magnetic field force that the electric current that the winding direction of enamel-covered wire should be able to be passed to is produced promotes electric arc to arc-chutes
17 motions are consistent.The one end of blowout coil 4 passes sequentially through arc leading angle 9, the second soft strength 12 and is connected with moving contact 13；The other end passes through
Plate 5, fixed plate 6, terminal plate 7 are connected with the first terminal screw 11.Fixed plate 6 is used to fix bimetal leaf 8.
Blowout coil 4 forms structural shape in parallel, i.e. the place loop of blowout coil 4 with bimetal leaf 8 and is parallel to double gold
Belong to the two ends of 8 and first soft strength of piece 10, be the diverter branch of breaker major loop.When moving contact 13, static contact 14 connect circuit
When, there is electric current to induce magnetic flux by blowout coil 4.It is so designed that in the application, can also be according to the big of rated operational current
It is small, it is big to flowing through the exciting current of blowout coil 4 to realize by changing the resistance sizes of the soft strength 10 of bimetal leaf 8 and first
Small regulation, and then the regulation and control to the magnetic field intensity produced by blowout coil 4 are realized, so as to avoid the magnetic field in big rated current
Intensity is excessive, magnetic field intensity too small defect during small rated currents.
In the present embodiment, the soft strength 12 of blowout coil 4 and second is parallel to the two ends of 8 and first soft strength of bimetal leaf 10；
Certainly, the two ends of 8 or first soft strength of bimetal leaf 10, or other parts two ends also can be only parallel to, also can be only
Blowout coil 4, which is directly parallel to some, has the parts two ends of setting resistance, as long as ensure that the electricity for flowing through blowout coil 4
Stream meets design requirement.
It should be evident that the technical program is also not limited to the terminal screw 11 of moving contact 13 and first of the present embodiment description
Between attachment structure.Attachment structure can be determined according to actual conditions.
Fig. 1, Fig. 4, Fig. 5 and Fig. 6 are refer to, magnetic blow-out system also includes magnetic conductive board 2 and insulation board 1.Wherein, magnetic conductive board 2 is set
The two ends of yoke 3 are placed in, and are in close contact with yoke 3.It is referred to as electric arc with respect to the arc motion passage formed between magnetic conductive board 2 to lead to
Road 103.Magnetic conductive board 2 is similarly ferromagnetic material and is made.Magnetic flux produced by blowout coil 4 is assigned to by yoke 3 and magnetic conductive board 2
In the arc channel 103 of arc motion, to promote electric arc to be moved to arc-chutes direction, so as to realize fast arc extinction.
The relative side of magnetic conductive board 2, the i.e. side close to arc channel 103, are provided with insulation board 1.Insulation board 1 is by being heated
Aerogenesis and resistant to elevated temperatures thermoplastic is made, and with the accommodating cavity 101 of accommodating magnetic conductive board 2.Magnetic conductive board 2 is flush-mounted in accommodating
In chamber 101.It is so designed that, the electric arc in arc channel 103 is moved only on insulation board 1, to completely cut off the straight of electric arc and magnetic conductive board 2
Contact.Because arc temperature is high, insulation board 1 is set to produce substantial amounts of gas formation high pressure draught, on the one hand in high pressure draught
In the presence of, accelerate electric arc to be moved to arc-chutes, another aspect gas generation process is also the process for absorbing a large amount of arc energies, to carrying
High arc voltage is highly beneficial.
Two relative sides of insulation board 1 are provided with some bead structures 102, after two insulation boards 1 are installed, its rib
Structure 102 is interlaced in arc channel 103, so as to constitute labyrinth passage.The magnetic field force produced when electric arc in blowout coil 4
On the labyrinth passage formed under the collective effect of high pressure draught body power into interlaced bead structures 102, make
It is longer that electric arc is drawn, and greatly lifts arc voltage, accelerates to extinguish.
As another embodiment, magnetic blow-out system does not include yoke 3.
It is 6A-10A, the i.e. internal structure for small rated currents that single-pole circuit breaker shown in Fig. 2, which is applicable current range,.Its with
Fig. 1 difference is that the breaker master that the blowout coil 4 in magnetic blow-out system is series between moving contact 13 and dynamic terminals returns
Road.In the present embodiment, one end of blowout coil 4 is connected by the second soft strength 12 with moving contact 13, and the other end passes through fixed plate
6th, bimetal leaf 8, the 3rd soft strength 19, terminal plate 7 are connected.It is same electricity i.e. by the electric current of bimetal leaf 8 and blowout coil 4
Stream.Can be according to the size of rated operational current, by changing in bimetal leaf 8, the second soft strength 12 and the 3rd soft strength 19 extremely
The size of few resistance, or change the coil turn of blowout coil 4 to regulate and control magnetic field intensity, so as to avoid small rated currents
When the too small defect of magnetic field intensity.
It is below 4A, the i.e. internal structure for small rated currents that single-pole circuit breaker shown in Fig. 3, which is applicable current range,.Its with
Fig. 1 difference is that the breaker master that the blowout coil 4 in magnetic blow-out system is series between moving contact 13 and dynamic terminals returns
Road.In the present embodiment, the single-pole circuit breaker uses following connected mode.Moving contact 13 passes sequentially through first and is flexible coupling 10, magnetic blow-out
Coil 4, bimetal leaf 8 and resistance wire 20 are connected with terminal plate 7.Wherein, resistance wire 20 insulate with bimetal leaf, and is wound in
The periphery of bimetal leaf 8.It should be evident that the technical program does not limit to the embodiment in the present embodiment, blowout coil 4 is series at
Breaker major loop between moving contact 13 and terminal plate 7, results in suitable exciting current.
By to emi analysis, in the technical program, blowout coil around to and connected mode should ensure that nothing
By current direction how, the magnetic blow-out power that electric arc is produced by blowout coil pushes electric arc to arc-chutes, therefore docking line end pole
Property no requirement (NR), can apply to DC-AC occasion.
Fig. 7 is refer to, the application is simultaneously there is provided a kind of multipole circuit breaker, and the multipole circuit breaker is by multiple single-pole circuit breakers
It is assemblied to form.Due to the electric current between single-pole circuit breaker and single-pole circuit breaker on the contrary, the magnetic flux produced by mutually opposing electric current is
Reverse each other, the interaction of reverse each other magnetic flux to the arc current of each monopole makes electric arc stagnate, to extinguishing electricity
Arc is very unfavorable, so that shielding piece 18 is provided between adjacent monopoles breaker, to shield two breakers due to the sense of current
It is different caused by counter magnetic flux between influence.
Obviously, above-described embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (15)
1. a kind of magnetic blow-out system, including be blown to for the electric arc produced between the moving contact (13) and static contact (14) by breaker
The blowout coil (4) of arc-chutes (17), it is characterised in that：The blowout coil (4) is arranged at the breaker with setting electric current
The diverter branch of major loop, or, it is series at the breaker major loop with setting electric current.
2. magnetic blow-out system according to claim 1, it is characterised in that：The breaker correspondence moving contact (13) is set
There are the dynamic terminals for external first connecting line, the blowout coil (4) is parallel to the moving contact (13) and connect with described move
There are the parts both sides of setting resistance in the breaker major loop between line end (11).
3. magnetic blow-out system according to claim 2, it is characterised in that：The moving contact (13) passes through the first soft strength
(10), bimetal leaf (8) is connected with the dynamic terminals, and blowout coil (4) two ends are connected to the bimetal leaf (8) two
End.
4. magnetic blow-out system according to claim 3, it is characterised in that：The bimetal leaf (8) is by plate (5) and connects
Line plate (7) is connected with the dynamic terminals, and described blowout coil (4) one end passes through arc leading angle (9), the second soft strength (12) and institute
Moving contact (13) is stated to be connected；The other end is connected by fixed plate (6) with the plate (5), forms diverter branch, double gold
Category piece (8) is installed on the fixed plate (6).
5. magnetic blow-out system according to claim 1, it is characterised in that：The breaker correspondence moving contact (13) is set
There are the dynamic terminals for external first connecting line, the blowout coil (4) is series at the moving contact (13) and connect with described move
The breaker major loop between line end.
6. magnetic blow-out system according to claim 5, it is characterised in that：One end of the blowout coil (4) is soft by second
Connection (12) be connected with the moving contact (13), the other end by bimetal leaf (8), the 3rd soft strength (19), terminal plate (7) and
The dynamic terminals are connected.
7. magnetic blow-out system according to claim 5, it is characterised in that：One end of the blowout coil (4) is soft by second
Connection (12) is connected with the moving contact (13)；The other end by bimetal leaf (8), resistance wire (20), terminal plate (7) with it is described
Dynamic terminals are connected.
8. the magnetic blow-out system according to claim any one of 1-7, it is characterised in that：The blowout coil (4) is by enamel-covered wire
Coiling is formed, and the magnetic blow-out system also includes being made yoke (3) by ferromagnetic material, yoke (3) skewer enter blowout coil (4) it
In, and insulated with the blowout coil (4).
9. magnetic blow-out system according to claim 8, it is characterised in that：Yoke (3) two ends are relatively set with electric arc
The magnetic conductive board (2) of arc-chutes is oriented to, the magnetic conductive board (2) contacts with the yoke (3).The magnetic that the blowout coil (4) produces
Cross the yoke (3) all and the magnetic conductive board (2) be assigned in the arc channel of arc motion (103), with promote electric arc to
Arc-chutes (17) the direction motion.
10. magnetic blow-out system according to claim 9, it is characterised in that：Magnetic conductive board (2) opposite flank is provided with insulation
Plate (1), the insulation board (1) is made up of heated aerogenesis and resistant to elevated temperatures thermoplastic.
11. magnetic blow-out system according to claim 10, it is characterised in that：Bead structures are set on the insulation board, it is described
Rib interlock Cheese be added in the arc channel (103) formation labyrinth type arc extinguishing structure.
12. magnetic blow-out system according to claim 10, it is characterised in that：The insulation board (1) has accommodating cavity (101),
In the accommodating cavity (101) of the fixedly embedded insulation board (1) of magnetic conductive board (2).
13. a kind of arc-control device, it is characterised in that：Including the magnetic blow-out system described in claim any one of 1-12.
14. a kind of single-pole circuit breaker, it is characterised in that：Including the arc-control device described in claim 13.
15. a kind of multipole circuit breaker, it is characterised in that including the single-pole circuit breaker described in multiple assembled claims 14, phase
Shielding piece (18) is provided between the adjacent single-pole circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570915.XA CN107146723B (en) | 2017-07-13 | 2017-07-13 | Magnetic blow-out system, arc extinguishing device, single-pole circuit breaker and multi-pole circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570915.XA CN107146723B (en) | 2017-07-13 | 2017-07-13 | Magnetic blow-out system, arc extinguishing device, single-pole circuit breaker and multi-pole circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107146723A true CN107146723A (en) | 2017-09-08 |
| CN107146723B CN107146723B (en) | 2021-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710570915.XA Active CN107146723B (en) | 2017-07-13 | 2017-07-13 | Magnetic blow-out system, arc extinguishing device, single-pole circuit breaker and multi-pole circuit breaker |
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| CN (1) | CN107146723B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627778A (en) * | 2020-05-28 | 2020-09-04 | 新驰电气集团有限公司 | Magnetic blow-out mechanism of circuit breaker |
| CN114121566A (en) * | 2021-11-30 | 2022-03-01 | 新驰电气集团有限公司 | Circuit breaker |
| CN114360966A (en) * | 2022-01-07 | 2022-04-15 | 郑爱弟 | Contactor with enhanced magnetic field guiding arc extinguishing chamber |
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| CN204144200U (en) * | 2014-08-17 | 2015-02-04 | 中国船舶重工集团公司第七一二研究所 | DC circuit breaker magnetic blow-out device |
| CN205081084U (en) * | 2015-11-13 | 2016-03-09 | 浙江圣曦电气股份有限公司 | Good miniature circuit breaker of arc extinguishing performance |
| CN207587576U (en) * | 2017-07-13 | 2018-07-06 | 安德利集团有限公司 | A kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627778A (en) * | 2020-05-28 | 2020-09-04 | 新驰电气集团有限公司 | Magnetic blow-out mechanism of circuit breaker |
| WO2021237980A1 (en) * | 2020-05-28 | 2021-12-02 | 新驰电气集团有限公司 | Magnetic blow-out mechanism of circuit breaker |
| CN114121566A (en) * | 2021-11-30 | 2022-03-01 | 新驰电气集团有限公司 | Circuit breaker |
| CN114360966A (en) * | 2022-01-07 | 2022-04-15 | 郑爱弟 | Contactor with enhanced magnetic field guiding arc extinguishing chamber |
| CN114360966B (en) * | 2022-01-07 | 2023-10-13 | 杭州玛实迪电器科技有限公司 | Contactor with enhanced magnetic field guiding arc extinguishing chamber |
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