CN105470067A - Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions - Google Patents
Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions Download PDFInfo
- Publication number
- CN105470067A CN105470067A CN201511002034.5A CN201511002034A CN105470067A CN 105470067 A CN105470067 A CN 105470067A CN 201511002034 A CN201511002034 A CN 201511002034A CN 105470067 A CN105470067 A CN 105470067A
- Authority
- CN
- China
- Prior art keywords
- arc
- magnetic
- air
- circuit breaker
- extinguishing mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
-
- 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
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
- H01H9/362—Mounting of plates in arc chamber
-
- 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
-
- 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
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/36—Metal parts
- H01H2009/365—Metal parts using U-shaped plates
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention provides a breaker provided with an arc extinguishing mechanism with magnetic blowing and air-blowing functions, and mainly aims at solving the problems of poor breaking capacity and poor arc extinguishing effect due to the fact that the arc extinguishing mechanism of the breaker only has the magnetic blowing function or the air-blowing function. The breaker is characterized by also comprising a magnetic blowing device (4) and a gas production plate (5), wherein the magnetic blowing device (4) and the gas production plate (5) are correspondingly arranged between a static contact (22) and an arc extinguish chamber (3) and are used for guiding an electric arc generated when a moving contact (21) is separated from the static contact (22) to the arc extinguish chamber (3). According to the breaker provided with the arc extinguishing mechanism with the magnetic blowing and air-blowing functions provided by the invention, a magnetic blowing mechanism and the gas production plate are also arranged between the static contact and the arc extinguish chamber; and the electric arc generated when the moving contact is separated from the static contact is guided to the arc extinguish chamber, so that the arc extinguishing efficiency is improved; and the breaking capacity is relatively high.
Description
Technical field
The present invention relates to Low Voltage Electrical Apparatus, have and relate to a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function.
Background technology
Along with the continuous growth of electricity needs, China carries out power infrastructures construction energetically, and wherein the relation of DC distribution system and people's daily life is more and more tightr.Relative to interchange power supply-distribution system, DC distribution system has that circuit cost is low, capacity is large, regulate the advantages such as rapid, reliable, have employed DC distribution system in many important industries such as current China city trolley bus, railway, solar power generation, smelting, chemical industry, mine.DC circuit breaker is the key equipment of direct current system safe operation, must be able to reliably connect, electric current under disjunction and carrying normal operation, and can connect in abnormal running (such as short circuit) situation of regulation, the electric current in carrying certain hour and disjunction loop.
The top priority that direct current cut-offs is extinguish arcs.Because DC circuit does not have natural zero-crossing point, in mesolow direct current system, the method increasing arc voltage that adopts carrys out extinguish arcs more at present, and common scheme adopts metal grid arc cutting to realize extinguish arcs.
There is critical current in circuit breaker drop-out current.When drop-out current is much smaller than critical current, arc energy is little, very fast from putting out; When drop-out current is much larger than critical current, the electromagnetic force of electric arc self is enough large, electric arc can be made to enter rapidly arc control device along striking road and cut by metal grid, arc extinction; General circuit breaker cut-off loop be near critical current time have any problem, electric arc oneself produce electromagnetic force be not enough to electric arc is moved, finally cause arc reignition even failure of interruption.Electric arc stagnates the serious ablation that also can cause arc road in arc control device porch, reduce the life-span of circuit breaker.
Now commercially occur that some circuit breakers possess the function of magnetic blow-out or gas blast arc-quenching, (such as publication number is " CN103824736A ", patent name is the Chinese patent of " direct-driven gas blow tripping device of breaker " for the Chinese patent of " a kind of DC circuit breaker with magnetic blowout arc-chute " or publication number are " 102299032A " patent name), breaking capacity is not good, and arc quenching effect is bad.
Summary of the invention
In order to overcome the deficiency of background technology, the invention provides a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function, the arc-extinguishing mechanism mainly solving circuit breaker only has magnetic blow-out or only has the function of air-blowing, causes breaking capacity not good, the problem that arc quenching effect is bad.
The technical solution adopted in the present invention is:
A kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function, comprise housing, arc-extinguishing mechanism and operating mechanism is provided with in described housing, described operating mechanism comprises the moving contact and static contact that correspondence is provided with, described arc-extinguishing mechanism comprises arc control device, described static contact is provided with fixed contact, described arc control device are corresponding with described fixed contact to be arranged, also comprise magnetic blow-out device and aerogenesis plate, described magnetic blow-out device and aerogenesis plate correspondence to be located between described static contact and described arc control device and for being scolded out by described moving contact the electric arc produced during static contact to lead described arc control device.
Described magnetic blow-out device comprises the magnetic conduction sheet that magnetic conductive board and magnetic conduction sheet two ends are provided with, and described magnetic conductive board and described magnetic conduction sheet are crowded around and innerly formed a striking passage towards described arc control device and described fixed contact correspondence is located in described striking passage.
Described striking passage is U-shaped structure.
Be provided with for the buckling groove with described magnetic conduction sheet snap-fit engagement bottom described aerogenesis plate.
Described magnetic conduction sheet is fabricated from iron.
Described static contact leading portion is provided with the bending part of U-shaped, and described bending part inwall forms the U-type groove being used for magnetic conductive board described in clamping.
Described arc control device comprise the arc extinguishing grid pieces group formed uniformly at intervals by some arc extinguishing grid pieces, are provided with the escape groove for hold described magnetic conduction sheet corresponding with described magnetic conduction sheet bottom described arc extinguishing grid pieces group.
Described arc extinguishing grid pieces is uniform staggered with between two.
Some described arc extinguishing grid pieces axial directions arcuately distribute.
Described magnetic conductive board is provided with four and by closing-up together.
The invention has the beneficial effects as follows: the invention provides a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function, also be provided with magnetic blow-out mechanism and aerogenesis plate between its fixed contact and arc control device, moving contact scolded out the electric arc guiding arc control device produced during static contact.Improve arc extinguishing efficiency, breaking capacity is stronger.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of one embodiment of the invention.
Fig. 2 is the cross-sectional schematic of the arc control device of one embodiment of the invention.
Fig. 3 is the schematic perspective view of the arc control device of one embodiment of the invention.
Fig. 4 is the schematic perspective view of the arc control device of one embodiment of the invention.
Fig. 5 is the schematic perspective view of the arc control device of one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described: as shown in the figure, a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function, comprise housing 1, arc-extinguishing mechanism and operating mechanism is provided with in described housing 1, described operating mechanism comprises the moving contact 21 and static contact 22 that correspondence is provided with, described arc-extinguishing mechanism comprises arc control device 3, described static contact 22 is provided with fixed contact 221, described arc control device 3 are corresponding with described fixed contact 221 to be arranged, also comprise magnetic blow-out device 4 and aerogenesis plate 5, described magnetic blow-out device 4 and aerogenesis plate 5 correspondence to be located between described static contact 22 and described arc control device 3 and for being scolded out by described moving contact 21 electric arc produced during static contact 22 to lead described arc control device 3.When big current passes through, can be scolded due to electrodynamic repulsion force moving contact and be held, scolding in the process held and electric arc can being produced, in the opening procedure of moving contact, produce electric arc, arc burning aerogenesis cover gas wall, the anxious poly-rising of gas wall internal gas pressure, the air pressure of aerogenesis cover rear end can be greater than front end air pressure, and the gas that contact produces in disconnection process sprays toward arc control device direction under the effect of draught head, grid in arc control device cuts off electric arc, and electric arc is extinguished fast.Electric arc blows toward arc control device direction by magnetic blow-out device, further quickening arc extinction efficiency, the invention provides a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function, also be provided with magnetic blow-out mechanism and aerogenesis plate between its fixed contact and arc control device, moving contact scolded out the electric arc guiding arc control device produced during static contact.Improve arc extinguishing efficiency, breaking capacity is stronger.
In the present invention, as shown in the figure, described magnetic blow-out device 4 comprises the magnetic conduction sheet 42 that magnetic conductive board 41 and magnetic conduction sheet 41 two ends are provided with, and described magnetic conductive board 41 and described magnetic conduction sheet 42 are crowded around and innerly formed a striking passage 43 towards described arc control device 3 and described fixed contact 221 correspondence is located in described striking passage 43.Here magnetic conductive board is that magnetic material is made, further magnet can be adopted, be convenient to obtain, magnetic conduction sheet is that conductor is made, further iron plate can be adopted, magnetic conductive board and magnetic conduction sheet form the magnetic field being used for electric arc being pushed to arc control device, and electric arc produces between the fixed contact of moving contact, is blown into arc extinguishing in arc control device by magnetic field.
In the present invention, as shown in the figure, described striking passage 43 is U-shaped structure.Magnetic field is stablized with family, also can be trapezium structure etc. herein.
In the present invention, as shown in the figure, be provided with bottom described aerogenesis plate 5 for the buckling groove with described magnetic conduction sheet 42 snap-fit engagement.Aerogenesis board is connected on magnetic conduction sheet, difficult drop-off, compact conformation, and result of use is good.
In the present invention, as shown in the figure, described magnetic conduction sheet 42 is fabricated from iron.Also can adopt other conductor herein, such as copper, silver etc., iron cost is lower.
In the present invention, as shown in the figure, described static contact 22 leading portion is provided with the bending part 222 of U-shaped, and described bending part 222 inwall forms the U-type groove 223 being used for magnetic conductive board 41 described in clamping.Magnetic conductive board easier for installation, result of use is better.
In the present invention, as shown in the figure, described arc control device 3 comprise the arc extinguishing grid pieces group 31 formed uniformly at intervals by some arc extinguishing grid pieces 311, are provided with the escape groove 312 for hold described magnetic conduction sheet 42 corresponding with described magnetic conduction sheet 42 bottom described arc extinguishing grid pieces group 31.The magnetic conduction sheet made can prevent in arc control device, and decrease the distance of arc extinguishing passage, structure is compacter, and result of use is better.
In the present invention, as shown in the figure, described arc extinguishing grid pieces 311 is uniform staggered with between two.The one side that arc extinguishing grid pieces interlocks, towards striking passage, strengthens striking ability, increases arc quenching effect.
In the present invention, as shown in the figure, some described arc extinguishing grid pieces 311 axial directions arcuately distribute.Running orbit due to moving contact is arc, and the distribution of arc extinguishing grid pieces also correspondence is set to arc, and be convenient to arc extinguishing, result of use is better.
In the present invention, as shown in the figure, described magnetic conductive board 41 is provided with four and by closing-up together.Magnetic conduction better effects if, is installed together easier for installation by rivet assembling by magnetic conductive board.
Embodiment should not be considered as limitation of the present invention, but any improvement done based on spirit of the present invention, all should within protection scope of the present invention.
Claims (10)
1. one kind is provided with the circuit breaker of the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function, comprise housing (1), described housing is provided with arc-extinguishing mechanism and operating mechanism in (1), described operating mechanism comprises the moving contact (21) and static contact (22) that correspondence is provided with, described arc-extinguishing mechanism comprises arc control device (3), described static contact (22) is provided with fixed contact (221), described arc control device (3) are corresponding with described fixed contact (221) to be arranged, it is characterized in that: also comprise magnetic blow-out device (4) and aerogenesis plate (5), described magnetic blow-out device (4) and aerogenesis plate (5) correspondence to be located between described static contact (22) and described arc control device (3) and for being scolded out by described moving contact (21) electric arc produced time static contact (22) to lead described arc control device (3).
2. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 1, it is characterized in that: described magnetic blow-out device (4) comprises the magnetic conduction sheet (42) that magnetic conductive board (41) and magnetic conduction sheet (41) two ends are provided with, described magnetic conductive board (41) and described magnetic conduction sheet (42) are crowded around and are innerly formed a striking passage (43) towards described arc control device (3) and described fixed contact (221) correspondence is located in described striking passage (43).
3. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 2, is characterized in that: described striking passage (43) is U-shaped structure.
4. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 2, is characterized in that: described aerogenesis plate (5) bottom is provided with for the buckling groove with described magnetic conduction sheet (42) snap-fit engagement.
5. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 2, is characterized in that: described magnetic conduction sheet (42) is fabricated from iron.
6. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 2, it is characterized in that: described static contact (22) leading portion is provided with the bending part (222) of U-shaped, described bending part (222) inwall forms the U-type groove (223) being used for magnetic conductive board (41) described in clamping.
7. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 2, it is characterized in that: described arc control device (3) comprise the arc extinguishing grid pieces group (31) formed uniformly at intervals by some arc extinguishing grid pieces (311), described arc extinguishing grid pieces group (31) bottom is provided with the escape groove (312) for hold described magnetic conduction sheet (42) corresponding with described magnetic conduction sheet (42).
8. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 7, is characterized in that: described arc extinguishing grid pieces (311) is uniform staggered with between two.
9. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 7, is characterized in that: some described arc extinguishing grid pieces (311) axial directions arcuately distribute.
10. a kind of circuit breaker being provided with the arc-extinguishing mechanism possessing magnetic blow-out and air-blowing function according to claim 2, is characterized in that: described magnetic conductive board (41) is provided with four and by closing-up together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002034.5A CN105470067A (en) | 2015-12-29 | 2015-12-29 | Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002034.5A CN105470067A (en) | 2015-12-29 | 2015-12-29 | Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105470067A true CN105470067A (en) | 2016-04-06 |
Family
ID=55607658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002034.5A Pending CN105470067A (en) | 2015-12-29 | 2015-12-29 | Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105470067A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243930A (en) * | 2018-10-18 | 2019-01-18 | 常熟开关制造有限公司(原常熟开关厂） | A kind of switch |
| CN110739175A (en) * | 2019-09-30 | 2020-01-31 | 广州供电局有限公司 | Device for improving small current breaking capacity of direct-acting high-voltage switch |
| CN114360966A (en) * | 2022-01-07 | 2022-04-15 | 郑爱弟 | Contactor with enhanced magnetic field guiding arc extinguishing chamber |
| EP3979292A4 (en) * | 2019-05-28 | 2022-10-19 | Mitsubishi Electric Corporation | Direct-current circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014154492A (en) * | 2013-02-13 | 2014-08-25 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| CN204204690U (en) * | 2014-11-17 | 2015-03-11 | 浙江天正电气股份有限公司 | Arc Distinguishing Device for Circuit Breakers and be provided with the circuit breaker of this Arc Distinguishing Device for Circuit Breakers |
| CN204516637U (en) * | 2015-04-10 | 2015-07-29 | 派森特电气有限公司 | Fixed contact |
| CN204558301U (en) * | 2015-04-15 | 2015-08-12 | 浙江天正电气股份有限公司 | A kind of arc quenching system with magnetic blow-out formula and air-sweeping type arc extinguishing structure |
| CN205303389U (en) * | 2015-12-29 | 2016-06-08 | 浙江天正电气股份有限公司 | Arc extinction mechanism's circuit breaker with possess magnetic blow -out and air -blowing function |
-
2015
- 2015-12-29 CN CN201511002034.5A patent/CN105470067A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014154492A (en) * | 2013-02-13 | 2014-08-25 | Fuji Electric Fa Components & Systems Co Ltd | Circuit breaker |
| CN204204690U (en) * | 2014-11-17 | 2015-03-11 | 浙江天正电气股份有限公司 | Arc Distinguishing Device for Circuit Breakers and be provided with the circuit breaker of this Arc Distinguishing Device for Circuit Breakers |
| CN204516637U (en) * | 2015-04-10 | 2015-07-29 | 派森特电气有限公司 | Fixed contact |
| CN204558301U (en) * | 2015-04-15 | 2015-08-12 | 浙江天正电气股份有限公司 | A kind of arc quenching system with magnetic blow-out formula and air-sweeping type arc extinguishing structure |
| CN205303389U (en) * | 2015-12-29 | 2016-06-08 | 浙江天正电气股份有限公司 | Arc extinction mechanism's circuit breaker with possess magnetic blow -out and air -blowing function |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243930A (en) * | 2018-10-18 | 2019-01-18 | 常熟开关制造有限公司(原常熟开关厂） | A kind of switch |
| EP3979292A4 (en) * | 2019-05-28 | 2022-10-19 | Mitsubishi Electric Corporation | Direct-current circuit breaker |
| EP4187572A1 (en) * | 2019-05-28 | 2023-05-31 | Mitsubishi Electric Corporation | Direct-current circuit breaker |
| CN110739175A (en) * | 2019-09-30 | 2020-01-31 | 广州供电局有限公司 | Device for improving small current breaking capacity of direct-acting high-voltage switch |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205303389U (en) | Arc extinction mechanism's circuit breaker with possess magnetic blow -out and air -blowing function | |
| CN107359068B (en) | Moulded case circuit breaker with compound arc extinguishing performance | |
| CN206401213U (en) | Contact of breaker arc initiation device | |
| CN213583681U (en) | Circuit breaker | |
| CN105470067A (en) | Breaker provided with arc extinguishing mechanism with magnetic blowing and air-blowing functions | |
| CN103715003A (en) | Outdoor low-voltage fuse type isolating switch | |
| CN107146723B (en) | Magnetic blow-out system, arc extinguishing device, single-pole circuit breaker and multi-pole circuit breaker | |
| CN107342198B (en) | Moulded case circuit breaker with powerful disconnected short-circuit current ability of breaking | |
| CN203812784U (en) | Outdoor low-voltage fuse type isolating switch | |
| CN107359066B (en) | Clamp type arc extinguishing device for circuit breaker | |
| CN202373539U (en) | Movable contact structure with high breaking capacity | |
| CN212517099U (en) | Arc extinguishing chamber of circuit breaker | |
| CN114843159A (en) | Direct current breaker static contact device with non-polarity magnetic blow | |
| CN210956584U (en) | Arc extinguishing device of high-breaking circuit breaker | |
| CN107527773A (en) | A kind of omnipotent breaker with powerful arc extinction performance | |
| CN209708933U (en) | A kind of low-voltage circuit breaker | |
| CN107342196B (en) | Arc extinguishing device of high-breaking plastic casing type circuit breaker | |
| CN210110588U (en) | Arc extinguishing grid sheet layout structure of arc extinguishing chamber | |
| CN203312218U (en) | Arc extinguishing device for circuit breaker | |
| CN105470062A (en) | Direct-current breaker | |
| CN209591955U (en) | A kind of striking static contact and its breaker of plastic casing | |
| CN217035574U (en) | Quick arc control device | |
| CN212695087U (en) | Contact arc-extinguishing device of circuit breaker with improved structure | |
| CN208478263U (en) | Breaker of the zero curve without short-circuit protection | |
| CN113517163B (en) | Strong air-blowing current-limiting type arc extinguish chamber of high-voltage circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |