CN201918319U - Direct current contactor arc extinguishing device - Google Patents
Direct current contactor arc extinguishing device Download PDFInfo
- Publication number
- CN201918319U CN201918319U CN201120005694XU CN201120005694U CN201918319U CN 201918319 U CN201918319 U CN 201918319U CN 201120005694X U CN201120005694X U CN 201120005694XU CN 201120005694 U CN201120005694 U CN 201120005694U CN 201918319 U CN201918319 U CN 201918319U
- Authority
- CN
- China
- Prior art keywords
- arc
- magnetic conductive
- permanent magnet
- control device
- arc extinguishing
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a direct current contactor arc-extinguishing device, which overcomes the defect that critical electric current can not interrupt a circuit when the traditional series coil is used for extinguishing arc and solves the problem of high temperature demagnetization when a permanent magnet is used for extinguishing arc. The arc extinguishing device comprises a monopolar or multipolar arc extinguishing chamber, an arc extinguishing cover, an indicator, an arc extinguishing grating sheet and an arc striking board; the monopolar or multipolar arc extinguishing chamber is made of granular molding compound; the upper part of the monopolar or multipolar arc extinguishing chamber is provided with a gas outflow tooth-shaped groove hole; and the indicator is arranged in the chamber. The technical key point is that magnetic conductive boards or thick magnetic conductive boards are respectively inserted into two side walls in a contact chamber of the arc extinguishing chamber, corresponding to an arc generation place; the permanent magnet of which the periphery is coated with a heat insulating sleeve is arranged between the two magnetic conductive boards or thick magnetic conductive boards; and the permanent magnet is fixed at the upper parts of the two side walls of the contactor chamber through the arc extinguishing cover so that the two ends of the permanent magnet are respectively and seamlessly connected with the magnetic conductive boards or thick magnetic conductive boards in an suction manner. Compared with the like products, the arc extinguishing device has the advantages of reasonable design, compact structure and small size; the shape size of an alternating current contactor with the same capability can be achieved; the arc spraying distance is short; the arc extinguishing effect is good and the multipolar work voltage can reach kilovolt level.
Description
Technical field
The utility model relates to a kind of key component of D.C. contactor, and particularly a kind of permanent magnet of thermal insulation protection that utilizes produces the D.C. contactor arc-control device of magnetic quenching.It is applicable to the D.C. contactor of Direct Action Type bridge type contact double-breakpoint structure.Can be applicable to the one pole D.C. contactor, also can be applicable to public transport can reach thousand V levels with rated operational voltages such as electric motor coach, luminous energy, wind energy plants multipole D.C. contactor.
Background technology
At present, along with science and technology development, public transport all needs to provide rated operational voltage can reach the D.C. contactor of thousand V levels with electric motor coach, luminous energy, wind energy plant etc.General one pole (1P) arc control device have a contact room, and the two poles of the earth (2P) has two contact rooms, four contact rooms are arranged to four utmost points (4P), by the same arc control device that these contact rooms are combined into, are referred to as multipole arc control device.Existing high power DC contactor still being connected in the main circuit at the traditional current coil of application aspect the arc extinguishing, when dividing deenergizing, utilizes the magnetic blow-out of series current coil, electric arc is introduced huge labyrinth type arc control device carry out arc extinguishing.According to reported in literature, for example China Patent No. is " D.C. contactor arc-control device " and " D.C. contactor composite type arc-extinguish chamber " disclosed arc-control device of 02269953.8 of 02224404.2, though it has the stronger advantage of arc extinguishing ability, but it is low that current coil is made work efficiency, consumption copper is many, and flashover distance is big, also exists to face the danger that dielectric stream can not the branch deenergizing.Emerge at the product that has without the series coil arc extinguishing in the recent period, for example China Patent No. is 200720045041.8 " D.C. contactor ", disclosing D.C. contactor is Direct Action Type single-break contact structure, the arc-extinguish chamber assembly of one side, magnet is arranged on the outside magnetic field that forms of arc control device, and the overall dimension of the arc-extinguish chamber of a side just slightly reduces relatively.In China Patent No. 200420063210.7 " bipolar DC contactor "; disclosed bipolar DC contactor has adopted permanent magnet arc extinguishing technology; it is arranged on Direct Action Type bridge type contact and fixed contact below with permanent magnet; place the bottom of arc control device; described permanent magnet is in the high-temperature region that produces electric arc; under the hot environment that electric arc produces, unshielded permanent magnet can demagnetize gradually along with the rising of temperature, will influence the reliability of D.C. contactor operate as normal.
The utility model content
The purpose of this utility model provides a kind of D.C. contactor arc-control device, it solved existing series coil arc extinguishing exist face dielectric stream can not the branch deenergizing and the defective of the high temperature demagnetization that exists of permanent magnet arc extinguishing, reasonable in design compared with similar products, compact conformation, volume is little, can reach the overall dimension with Capacity AC Contactor, and the spray arc distance is from little, arc quenching effect is good, and multipole operating voltage can reach the 1000V level.
The technical scheme that the utility model adopted is: this D.C. contactor arc-control device comprises that the top made from BMC has the one pole or the multipole arc control device of the profile of tooth slotted eye of giving vent to anger, arc-extinguish chamber, be arranged on indoor indicating device, arc extinguishing grid pieces and run-on tab, its technical essential is: insert magnetic conductive board or thick magnetic conductive board in the two side of corresponding electric arc generation place in the contact room of described arc control device, the permanent magnet that periphery covers insulating sleeve is set between two described magnetic conductive boards or the thick magnetic conductive board, and be fixed on the top, two side in described contact room by described arc-extinguish chamber, the two ends of described permanent magnet are connected with described magnetic conductive board or the seamless absorption of thick magnetic conductive board respectively.
Described arc-extinguish chamber utilizes screw and connecting plate and described arc control device to be fixed together.
The polarity that is fixed on the described permanent magnet in the described multipole arc control device is distributed as: the polarity of first utmost point permanent magnet is N-S, the polarity of second utmost point permanent magnet is S-N, with first utmost point and second utmost point, positive source is connected with first utmost point end of incoming cables polarity of the 3rd utmost point and four-pole permanent magnet body respectively.
Advantage and the good effect that the utlity model has are: because the utility model is in the contact room of BMC arc control device, the permanent magnet that adopts two ends to be connected with magnetic conductive board or the seamless absorption of thick magnetic conductive board is respectively formed interior permanent magnets magnetic quenching structure, when producing electric arc between moving contact in the contact room and the fixed contact, in the magnetic field that electric arc forms because of the magnetic conductive board that is in permanent magnet the two poles of the earth, can apace electric arc be blown into arc control device cooling arc extinguishing, so it is reasonable in design compared with similar products, compact conformation, volume is little, can reach overall dimension with Capacity AC Contactor, the spray arc distance is from little, there is not critical current arc extinguishing difficulty, arc quenching effect is good, and multipole operating voltage can reach the 1000V level.It solved existing series coil arc extinguishing exist face dielectric stream can not the branch deenergizing and the defective of the high temperature demagnetization that exists of permanent magnet arc extinguishing, apply easily.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a kind of concrete structure schematic diagram of the present utility model.
Fig. 2 is the end view of Fig. 1.
Sequence number explanation among the figure: 1 arc control device, 2 connecting plates, 3 indicating devices, 4 arc-extinguish chambers, 5 magnetic conductive boards, the thick magnetic conductive board of 5A, 6 permanent magnets, 7 insulating sleeves, 8. arc extinguishing grid pieces, 9 bolsters, 10 run-on tabs, 11 fixed levers, 12 springs, 13 spring bases, 14 pins.
Embodiment
Describe concrete structure of the present utility model in detail according to Fig. 1～2.This D.C. contactor arc-control device comprises that the top made from BMC has the arc control device 1 of the profile of tooth slotted eye of giving vent to anger, arc-extinguish chamber 4, is arranged on the parts such as indicating device 3, arc extinguishing grid pieces 8, run-on tab 10, magnetic conductive board 5, thick magnetic conductive board 5A and permanent magnet 6 in the arc control device 1.Wherein the arc control device 1 made of BMC (be DMC, be also referred to as the unsaturated polyester (UP) BMC) design as required, can be one pole arc control device, bipolar arc control device, three utmost point arc control device and four utmost point arc control device.When insertion magnetic conductive board 5 or thick magnetic conductive board 5A(insert two magnetic conductive boards 5 in same wall in the two side of corresponding electric arc generation place in the contact room of arc control device 1 each phase, can a shared thick magnetic conductive board 5A), two magnetic conductive board 5(or two thick magnetic conductive board 5A or magnetic conductive board 5 and thick magnetic conductive board 5A) between the permanent magnet 6 that periphery covers insulating sleeve 7 is set, and be fixed on the top, two side in the contact room of one pole or multipole arc control device 1 by arc-extinguish chamber 4, the two ends of permanent magnet 6 are connected with magnetic conductive board 5 or the seamless absorption of thick magnetic conductive board 5A respectively, form interior permanent magnets magnetic quenching structure.When producing electric arc between moving contact in the contact room and the fixed contact, in the magnetic field that electric arc forms because of the magnetic conductive board 5 that is in permanent magnet 6 the two poles of the earth or thick magnetic conductive board 5A, can apace electric arc be blown into arc control device and cool off arc extinguishing.Arc-extinguish chamber 4 utilizes screw and connecting plate 2 to be fixed together with arc control device 1.
Present embodiment is three utmost point arc control device, indoor to 6 groups of arc extinguishing grid pieces 8 and run-on tab 10 should be arranged, be installed in two ends, arc control device interior three contact rooms 1 respectively, in the two side of corresponding electric arc generation place in each contact room, insert magnetic conductive board 5 and thick magnetic conductive board 5A, the end of magnetic conductive board 5 and thick magnetic conductive board 5A is adsorbed on the two ends of permanent magnet 6 respectively, realize that with permanent magnet 6 seamless link becomes the door font, insulating sleeve 7 wraps in outside the permanent magnet 6, with the magnetic conductive board 5, permanent magnet 6, insulating sleeve 7 that connect into a font totally six groups (3P) be pressed into together in three contact rooms in the arc control device 1.In the both sides of arc extinguishing grid pieces with bolster 9 by covering with arc-extinguish chamber 4, and arc-extinguish chamber 4 is reinforced on arc control device 1 with screw and connecting plate 2.Be provided with for fixed lever 11, spring 12, spring base 13 and the pin 14 that arc-control device is used is installed in the both sides of arc control device 1.When producing electric arc between moving contact in the contact room and the fixed contact, in the magnetic field that electric arc forms because of the magnetic conductive board 5 that is in permanent magnet 6 the two poles of the earth or thick magnetic conductive board 5A, fast electric arc is blown into arc control device and cools off arc extinguishing.
The polarity that is fixed on the permanent magnet 6 in the multipole arc control device is distributed as: the polarity of first utmost point permanent magnet 6 is N-S, the polarity of second utmost point permanent magnet 6 is S-N, with first utmost point and second utmost point, positive source is connected with first utmost point end of incoming cables polarity of the 3rd utmost point and four-pole permanent magnet body 6 respectively.
Claims (3)
1. D.C. contactor arc-control device, comprise that the top made from BMC has the one pole or the multipole arc control device of the profile of tooth slotted eye of giving vent to anger, arc-extinguish chamber, be arranged on indoor indicating device, arc extinguishing grid pieces and run-on tab, it is characterized in that: in the two side of corresponding electric arc generation place in the contact room of described arc control device, insert magnetic conductive board or thick magnetic conductive board, the permanent magnet that periphery covers insulating sleeve is set between two described magnetic conductive boards or the thick magnetic conductive board, and be fixed on the top, two side in described contact room by described arc-extinguish chamber, the two ends of described permanent magnet are connected with described magnetic conductive board or the seamless absorption of thick magnetic conductive board respectively.
2. according to claims 1 described D.C. contactor arc-control device, it is characterized in that: described arc-extinguish chamber utilizes screw and connecting plate and described arc control device to be fixed together.
3. according to claims 1 described D.C. contactor arc-control device, it is characterized in that: the polarity that is fixed on the described permanent magnet in the described multipole arc control device is distributed as: the polarity of first utmost point permanent magnet is N-S, the polarity of second utmost point permanent magnet is S-N, with first utmost point and second utmost point, positive source is connected with first utmost point end of incoming cables polarity of the 3rd utmost point and four-pole permanent magnet body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120005694XU CN201918319U (en) | 2011-01-11 | 2011-01-11 | Direct current contactor arc extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120005694XU CN201918319U (en) | 2011-01-11 | 2011-01-11 | Direct current contactor arc extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918319U true CN201918319U (en) | 2011-08-03 |
Family
ID=44418111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120005694XU Expired - Fee Related CN201918319U (en) | 2011-01-11 | 2011-01-11 | Direct current contactor arc extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262979A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Arc extinguishing device of direct contactor |
-
2011
- 2011-01-11 CN CN201120005694XU patent/CN201918319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262979A (en) * | 2011-01-11 | 2011-11-30 | 沈阳二一三控制电器制造有限公司 | Arc extinguishing device of direct contactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102262981B (en) | Bipolar DC contactor | |
| CN202633100U (en) | Kilovolt-level double-pole dual-breaker air type isolation reversing switch for mine | |
| CN201918319U (en) | Direct current contactor arc extinguishing device | |
| CN102592887B (en) | Multipole direct-current contactor | |
| CN102709083A (en) | Mining kilovolt-level double-pole single-breakpoint air isolation reversing switch | |
| CN102593745A (en) | Sealed compact-type combined electrical apparatus | |
| CN102262979A (en) | Arc extinguishing device of direct contactor | |
| CN104576160A (en) | Solid insulating three-position isolating switch with grounding switching off capability | |
| CN203085442U (en) | Permanent-magnetic Arc blowing device for DC isolating switch | |
| CN206003736U (en) | A kind of Solid-sealing vacuum load switch fuse combined electric apparatus | |
| CN102262985B (en) | Multipolar DC molded case circuit breaker | |
| CN201918339U (en) | Multipolar direct-current circuit breaker with plastic shell | |
| CN202678160U (en) | Mining kilovolt-level double-pole single-breakpoint air isolation reversing switch | |
| CN202712032U (en) | Load switch for 10kV aeration cabinet | |
| CN102262984A (en) | Mini-DC (direct current) breaker | |
| CN201910375U (en) | Mini-type direct current break | |
| CN201918324U (en) | Dipolar direct-current contactor | |
| CN201336242Y (en) | AC load switch for high voltage of 12 to 24kV | |
| CN203119378U (en) | Medium-voltage insulating metal enclosed switch device | |
| CN201936816U (en) | Multipolar direct-current contactor | |
| CN202178206U (en) | Vacuum arc extinguish chamber | |
| CN201562620U (en) | Outdoor circuit breaker with dual-power lead-in function | |
| CN201584267U (en) | Iron core radiating air flue of dry-type iron-core reactor | |
| CN204834386U (en) | Electromagnetic type electrical switching | |
| CN216120051U (en) | Breaking unit for efficient arc extinction |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20140111 |