CN207587576U - 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
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- CN207587576U CN207587576U CN201720848974.4U CN201720848974U CN207587576U CN 207587576 U CN207587576 U CN 207587576U CN 201720848974 U CN201720848974 U CN 201720848974U CN 207587576 U CN207587576 U CN 207587576U
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 94
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- 238000010891 electric arc Methods 0.000 claims abstract description 41
- 230000003068 static effect Effects 0.000 claims abstract description 20
- 238000009413 insulation Methods 0.000 claims description 24
- 230000033001 locomotion Effects 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 7
- 239000003302 ferromagnetic material Substances 0.000 claims description 4
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- 229910052751 metal Inorganic materials 0.000 description 3
- 230000005404 monopole Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
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- 238000013461 design Methods 0.000 description 2
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- 238000004804 winding Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
The utility model provides a kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker, electric arc including being used to generate between moving contact and static contact by breaker is blown to the blowout coil of arc-chutes, the blowout coil is set to 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 push electric arc to be moved to arc-chutes because of electric current, the technical program is simple in structure, it can adapt to the smaller application scenario of electric current, and line end polarity no requirement (NR) is docked, solves the predicament for being difficult to disjunction low current, can be applied to DC communication occasion, meet the requirement to miniature circuit breaker such as photovoltaic generating system, adapt to the demand of new energy industry future development.
Description
Technical field
The utility model is related to field low voltage electrical apparatus technology fields, and in particular to a kind of magnetic blow-out system, the utility model are same
When design a kind of 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 generate electric arc when disconnecting.
Electric arc is the highly conductive free gas of high temperature, it not only has contact very big destruction, but also makes the time of disconnecting circuit
Extend, have a great impact to the safe operation of power supply-distribution system.
It is the common arc extinguishing means of low-voltage electrical apparatus to push arc-chutes realization to force arc extinguishing by electric arc with externally-applied magnetic field.Straight
The current generally use permanent magnet in stream field is as externally-applied magnetic field.Wiring has polarity in the product practicality of such structure type,
If wiring error, electric arc can be pushed away arc-chutes instead, serious quality accident can be caused.And current direction can not be applied to
Reversed recurrent application scenario, such as photovoltaic system.
The utility model patent of Publication No. CN104124118B discloses a kind of dc circuit breaker magnetic blow-out device, including setting
It puts in the static side arc leading angle at arc-chutes both ends and moved end arc leading angle；The static side that both ends are connect respectively with static side arc leading angle and static contact
Blowout coil；The moved end blowout coil that both ends are connect respectively with moved end arc leading angle and by conducting wire with moving contact.Static side arc leading angle
There is gap with static contact, 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.For above-mentioned breaker only when arc transfer is to dynamic (quiet) end arc leading angle, electric arc will be dynamic
(quiet) contact, dynamic (quiet) end arc leading angle and dynamic (quiet) end blowout coil are cascaded, and electric current flows through blowout coil and induces magnetic
.However if when arc current is for critical current or during less than critical current, electric arc if, can be rested between dynamic/static contact,
Blowout coil no current passes through, and magnetic blow-out effect failure, electric arc sustained combustion is easy to cause the generation of quality accident.Therefore it is above-mentioned
Breaker has larger rated current, and application scenario has certain limitation, can not adapt to the application scenario of low current.
Utility model content
It therefore, can not the technical problem to be solved by the present invention is to overcome application scenario of the prior art limited
Low current application scenario defect is adapted to, so as to provide a kind of magnetic blow-out system.
Another technical problem to be solved in the utility model is to overcome application scenario of the prior art limited, can not
Low current application scenario defect is adapted to, so as to provide a kind of arc-control device.
Another technical problem to be solved in the utility model is to overcome application scenario of the prior art limited, can not
Low current application scenario defect is adapted to, so as to provide a kind of single-pole circuit breaker.
Another technical problem to be solved in the utility model is to overcome application scenario of the prior art limited, can not
Low current application scenario defect is adapted to, so as to provide a kind of multipole circuit breaker.
The utility model provides a kind of magnetic blow-out system, is generated including being used between moving contact and static contact by breaker
Electric arc be blown to the blowout coils of arc-chutes, the blowout coil is set to the shunting of the breaker major loop with setting electric current
Branch or, it is series at the breaker major loop with setting electric current.
Optionally, the breaker corresponds to the moving contact and is provided with for the dynamic terminals of 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 both ends are connected to the bimetal leaf both 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 corresponds to the moving contact and is provided with for the dynamic terminals of 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, third 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 enameled wire coiling, and the magnetic blow-out system is further included to be made of ferromagnetic material
Yoke among the yoke skewer enters blowout coil, and insulate with the blowout coil.
Optionally, the yoke both 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 generates is assigned to the electric arc of arc motion by the yoke and the magnetic conductive board
On channel, electric arc to be pushed 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 heat safe
Thermoplastic material is made.
Optionally, bead structures are set on the insulation board, and the rib Cheese that interlocks is added in the arc channel and forms 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.
The utility model provides a kind of arc-control device simultaneously, including magnetic blow-out system described in any one of the above embodiments.
The utility model additionally provides a kind of single-pole circuit breaker, including above-mentioned arc-control device.
The utility model additionally provides a kind of multipole circuit breaker, includes the above-mentioned single-pole circuit breaker of multiple assembly, adjacent institute
It states and is provided with shielding piece between single-pole circuit breaker.
Technical solutions of the utility model have the following advantages that：
1. a kind of magnetic blow-out system provided by the utility model, moving contact have electric current from magnetic blow-out line when circuit is connected with static contact
Generation magnetic flux is flowed through in circle.When the separated generation electric arc of moving contact and static contact, the magnetic flux that blowout coil generates can push away
Dynamic electric arc is moved to arc-chutes, and the technical program is simple in structure, can adapt to the smaller application scenario of electric current, is solved and is difficult to point
The predicament of disconnected low current, meets the requirement to miniature circuit breaker such as photovoltaic generating system, has adapted to new energy industry future development
Demand.In addition, by the way that emi analysis, it is found that in the technical program, regardless of current direction, electric arc is by magnetic blow-out line
It encloses the magnetic blow-out power generated and pushes electric arc to arc-chutes, therefore dock line end polarity no requirement (NR), can be applied to DC communication field
It closes.
2. a kind of magnetic blow-out system provided by the utility model, magnetic blow-out system is also comprising two insulation boards, and insulation board is by aerogenesis
And heat-resisting material is made, it is placed on the top of two magnetic conductive boards.It is so designed that, insulation board is in addition to isolation electric arc and magnetic conductive board
Contact is outer, and insulating materials can generate gas and both strengthen the effect of brushing to electric arc, and can both accelerate fortune of the electric arc to arc-chutes
It is dynamic, and sizable heat in electric arc is absorbed, accelerate the movement velocity of electric arc, increase arc voltage, to accelerating arc extinction
It is highly beneficial.
3. a kind of magnetic blow-out system provided by the utility model, bead structures are provided on two insulation boards.It is so designed that, group
The bead structures of two insulation boards after conjunction are interlaced on the channel of arc motion, forming labyrinth type arc extinguishing, further draw
The movement locus of long arc, further increases arc voltage, accelerates the extinguishing of electric arc.So as to improve point of short circuit current
Cutting capacity, and solve the predicament for being difficult to disjunction low current.
4. a kind of magnetic blow-out system provided by the utility model, can be by changing double gold according to the size of rated operational current
Belong to the variation (serial or parallel connection) of piece and the first soft strength resistance value size or magnet exciting coil and bimetal leaf connection to adjust
The size of exciting current is saved, so as to fulfill the regulation and control to magnetic field intensity caused by blowout coil, to avoid in big rated current
When magnetic field intensity it is excessive, the defects of low current magnetic field intensity is too small.
4. a kind of multipole circuit breaker provided by the utility model, to adapt to direct current 250V, 500V, 1000,1500V voltages
It needs, multiple single-pole circuit breakers should be connected assembled, shielding piece is provided between adjacent monopoles breaker, to shield two
Breaker is due to the influence between the counter magnetic flux caused by the difference of current direction.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram of single-pole circuit breaker embodiment provided by the utility model；
Fig. 2 is the structure diagram of another single-pole circuit breaker embodiment provided by the utility model；
Fig. 3 is the structure diagram of another single-pole circuit breaker embodiment provided by the utility model；
Fig. 4 is the structure diagram of magnetic blow-out system in Fig. 1 to Fig. 3；
Fig. 5 is the structure diagram of magnetic conductive board in magnetic blow-out system；
Fig. 6 is the structure diagram of insulation board in magnetic blow-out system；
Fig. 7 is a kind of structure diagram of multipole circuit breaker provided by the utility model.
Reference sign：
1- insulation boards, 2- magnetic conductive boards, 3- yokes, 4- blowout coils, 5- plates, 6- fixed plates, 7- terminal plates, the bis- gold of 8-
Belong to piece, 9- arc leading angles, the first soft strengths of 10-, the first terminal screws of 11-, the second soft strengths of 12-, 13- moving contacts, 14- stationary contacts
Head, 15- electromagnetic coils, the second terminal screws of 16-, 17- arc-chutes, 18- shielding piece, 19- thirds soft strength, 20- resistance wires,
101- accommodating cavities, 102- bead structures, 103- arc channels.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
Single-pole circuit breaker shown in FIG. 1 is applicable in current range as 16A-63A, which includes moving contact 13 and quiet
The first terminal screw 11 and the second terminal screw 16 that contact 14 and corresponding moving contact 13 and static contact 14 are set.First connects
The i.e. dynamic terminals of 11 and second terminal screw 16 of line screw and quiet terminals.First terminal screw 11 and the second terminal screw 16 divide
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 connected with external first connecting line.Static contact 14 connects by second
Line screw 16 is connected with external second connecting line, is also associated with the electromagnetic coil 15 for dropout between the two.13 He of moving contact
When the contact of static contact 14 is closed a floodgate, external first connecting line and the second connecting line is connected.Second connecting line, the second terminal screw 16,
Static contact 14, moving contact 13, the first terminal screw 11 are known as breaker major loop with the circuit that the first connecting line is connected.
Moving contact 13 and static contact 14 can generate electric arc when disconnecting, and the single-pole circuit breaker is additionally provided with for arc extinguishing thus
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 set to the yoke 3 and blowout coil 4 near moving contact 13.Yoke 3 is by ferromagnetic material system
Into cylindrical-shaped structure, positioned at 9 side of arc leading angle, periphery is wound with blowout coil 4.Blowout coil 4 is formed by enameled wire coiling
And insulate with yoke 3, the magnetic field force of electric current generation that the winding direction of enameled wire should be able to make it through pushes electric arc to arc-chutes
17 movements are consistent.4 one end of blowout coil passes sequentially through arc leading angle 9, the second soft strength 12 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 with bimetal leaf 8, i.e. 4 place circuit of blowout coil is parallel to double gold
Belong to 8 and first soft strength of piece, 10 both ends, 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, it can also be according to the big of rated operational current
It is small, it is big to flowing through 4 exciting current of blowout coil to realize by changing the resistance sizes of 8 and first soft strength 10 of bimetal leaf
Small adjusting, and then realize the regulation and control to magnetic field intensity caused by blowout coil 4, so as to avoid the magnetic field in big rated current
The defects of intensity is excessive, and magnetic field intensity is too small during small rated currents.
In the present embodiment, 4 and second soft strength 12 of blowout coil is parallel to 8 and first soft strength of bimetal leaf, 10 both ends；
Certainly, 8 or first soft strength of bimetal leaf, 10 both ends or other parts both ends also can be only parallel to, also can be only
Blowout coil 4, which is directly parallel to some, has parts both ends of setting resistance, as long as can ensure to flow through the electricity of blowout coil 4
Stream meets design requirement.
It should be evident that the technical program is also not limited to 13 and first terminal screw 11 of moving contact of the present embodiment description
Between connection structure.Connection structure can be determines according to actual conditions.
It please refers to Fig.1, Fig. 4, Fig. 5 and Fig. 6, magnetic blow-out system further includes magnetic conductive board 2 and insulation board 1.Wherein, magnetic conductive board 2 is set
The both ends of yoke 3 are placed in, and are in close contact with yoke 3.It is known as electric arc with respect to the arc motion channel formed between magnetic conductive board 2 to lead to
Road 103.Magnetic conductive board 2 is similarly ferromagnetic material and is made.Magnetic flux is assigned to by yoke 3 and magnetic conductive board 2 caused by blowout coil 4
In the arc channel 103 of arc motion, electric arc to be pushed to be moved to arc-chutes direction, so as to fulfill fast arc extinction.
The opposite side of magnetic conductive board 2 that is, close to the side of arc channel 103, is provided with insulation board 1.Insulation board 1 is by being heated
Aerogenesis and heat safe thermoplastic material 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 only moves on insulation board 1, to completely cut off the straight of electric arc and magnetic conductive board 2
Contact.Since arc temperature is high, insulation board 1 is made to generate a large amount of gas and forms high pressure draught, on the one hand in high pressure draught
Under the action of, electric arc is accelerated 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 opposite sides of insulation board 1 are provided with several bead structures 102, after two insulation boards 1 are installed, rib
Structure 102 is interlaced in arc channel 103, so as to form labyrinth passage.When the magnetic field force that electric arc is generated in blowout coil 4
Enter on the labyrinth passage that is formed of interlaced bead structures 102 under the collective effect of high pressure draught body power, make
Electric arc is drawn longer, greatly promotes arc voltage, accelerates to extinguish.
As another embodiment, magnetic blow-out system does not include yoke 3.
Single-pole circuit breaker shown in Fig. 2 is applicable in current range as 6A-10A, i.e., for the internal structure of small rated currents.Its with
Difference lies in the breaker master that the blowout coil 4 in magnetic blow-out system is series between moving contact 13 and dynamic terminals returns Fig. 1
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, third 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 according to the size of rated operational current, by changing in bimetal leaf 8, the second soft strength 12 and third soft strength 19 extremely
The size of few resistance changes the coil turn of blowout coil 4 to regulate and control magnetic field intensity, so as to avoid small rated currents
When magnetic field intensity it is too small the defects of.
Single-pole circuit breaker shown in Fig. 3 is applicable in current range as 4A hereinafter, being used for the internal structure of small rated currents.Its with
Difference lies in the breaker master that the blowout coil 4 in magnetic blow-out system is series between moving contact 13 and dynamic terminals returns Fig. 1
Road.In the present embodiment, which uses following connection 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, and be wound in bimetal leaf
8 periphery of bimetal leaf.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, can obtain suitable exciting current.
By to emi analysis it is found that in the technical program, blowout coil around to and connection mode should ensure that nothing
By current direction how, the magnetic blow-out power that electric arc is generated by blowout coil pushes electric arc to arc-chutes, therefore docks line end pole
Property no requirement (NR), can be applied to DC communication occasion.
Fig. 7 is please referred to, the application provides a kind of multipole circuit breaker simultaneously, 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, magnetic flux caused by mutually opposing electric current is
Reversed each other, magnetic flux reversed each other makes electric arc stagnate the interaction of the arc current of each monopole, to extinguishing electricity
Arc is very unfavorable, so as to be provided with shielding piece 18 between adjacent monopoles breaker, to shield two breakers due to current direction
Difference caused by counter magnetic flux between influence.
Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to limit the embodiments.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 variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation thus extended out or
Among the protection domain that variation is created still in the utility model.
Claims (15)
1. the electric arc generated between the moving contact (13) of breaker and static contact (14) is blown to by a kind of magnetic blow-out system including being used for
The blowout coil (4) of arc-chutes (17), it is characterised in that：The blowout coil (4) is set to 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 corresponds to the moving contact (13) setting
The dynamic terminals of external first connecting line are useful for, the blowout coil (4) is parallel to the moving contact (13) and is 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) both 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
Belong to piece (8) and be installed on the fixed plate (6).
5. magnetic blow-out system according to claim 1, it is characterised in that：The breaker corresponds to the moving contact (13) setting
The dynamic terminals of external first connecting line are useful for, the blowout coil (4) is series at the moving contact (13) and is 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), third 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. according to claim 1-7 any one of them magnetic blow-out systems, it is characterised in that：The blowout coil (4) is by enameled wire
Coiling forms, and the magnetic blow-out system is further included is made yoke (3) by ferromagnetic material, yoke (3) skewer enter blowout coil (4) it
In, and insulate with the blowout coil (4).
9. magnetic blow-out system according to claim 8, it is characterised in that：Yoke (3) both 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) generates
Cross the yoke (3) all and the magnetic conductive board (2) be assigned in the arc channel (103) of arc motion, with push electric arc to
Arc-chutes (17) the direction movement.
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) are made of heated aerogenesis and heat safe thermoplastic material.
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) formed 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 claim 1-12 any one of them magnetic blow-out systems.
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, which is characterized in that the single-pole circuit breaker described in the claim 14 including multiple assembly, phase
Shielding piece (18) is provided between the adjacent single-pole circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720848974.4U CN207587576U (en) | 2017-07-13 | 2017-07-13 | A kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720848974.4U CN207587576U (en) | 2017-07-13 | 2017-07-13 | A kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN207587576U true CN207587576U (en) | 2018-07-06 |
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|---|---|---|---|
| CN201720848974.4U Active CN207587576U (en) | 2017-07-13 | 2017-07-13 | A kind of magnetic blow-out system, arc-control device, single-pole circuit breaker and multipole circuit breaker |
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| CN (1) | CN207587576U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146723A (en) * | 2017-07-13 | 2017-09-08 | 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 |
-
2017
- 2017-07-13 CN CN201720848974.4U patent/CN207587576U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146723A (en) * | 2017-07-13 | 2017-09-08 | 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 |
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