CN102262979A - Arc extinguishing device of direct contactor - Google Patents
Arc extinguishing device of direct contactor Download PDFInfo
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- CN102262979A CN102262979A CN2011100039258A CN201110003925A CN102262979A CN 102262979 A CN102262979 A CN 102262979A CN 2011100039258 A CN2011100039258 A CN 2011100039258A CN 201110003925 A CN201110003925 A CN 201110003925A CN 102262979 A CN102262979 A CN 102262979A
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- arc
- arc extinguishing
- magnetic conductive
- permanent magnet
- control device
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Abstract
The invention relates to an arc extinguishing device of a direct contactor, which solves the defects that circuits can not be interrupted through critical currents in the traditional serial coil arc extinguishing and high temperature demagnetization exists in a permanent magnet; the arc extinguishing device comprises a single electrode or multiple-electrode arc extinguishing chamber, an arc extinguishing cover, an indicator, an arc extinguishing grid-plate and a run-on plate, wherein the single electrode or multiple-electrode arc extinguishing chamber is made of dough moulding compound and is provided with a gas outlet tooth profile slotted hole at the upper part; the indicator, the arc extinguishing grid-plate and the run-on plate are arranged inside the arc extinguishing chamber; technical key points of the arc extinguishing device: magnetic conductive plates or thick magnetic conductive plates are inserted inside two side walls of a contact chamber of the arc extinguishing chamber corresponding to an arc generating part; a permanent magnet which is covered by a heat insulation sleeve at the periphery is arranged between the two magnetic conductive plates or the two thick magnetic conductive plates and fixed at the upper parts of the two side walls of the contact chamber by using the arc extinguishing cover so that both ends of the permanent magnet are respectively connected with the magnetic conductive plates or the thick magnetic conductive plates in a seamless absorption mode. Compared with the like products, the arc extinguishing device has the advantages of reasonable design, compact structure, small volume, capability of reaching overall dimension of the alternating current contact with the same capacity, small arc spraying distance, good arc extinguishing effect and multiple-electrode working voltage reaching the kilovolt level.
Description
Technical field
The present invention relates to a kind of key component of D.C. contactor, 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.
Summary of the invention
The purpose of this invention is to provide 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 solution adopted in the present invention 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 good effect that the present invention has are: because the present invention 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 present invention is further described.
Fig. 1 is a kind of concrete structure schematic diagram of the present invention.
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 invention 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 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 |
|---|---|---|---|
| CN2011100039258A CN102262979A (en) | 2011-01-11 | 2011-01-11 | Arc extinguishing device of direct contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100039258A CN102262979A (en) | 2011-01-11 | 2011-01-11 | Arc extinguishing device of direct contactor |
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| CN102262979A true CN102262979A (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100039258A Pending CN102262979A (en) | 2011-01-11 | 2011-01-11 | Arc extinguishing device of direct contactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411298A (en) * | 2018-12-27 | 2019-03-01 | 沈阳二三控制电器制造有限公司 | A kind of high-voltage DC contactor arc-control device |
| CN109546541A (en) * | 2018-10-30 | 2019-03-29 | 南安市简锐工业设计有限公司 | Novel intelligent convergence control cabinet |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031573U (en) * | 1988-05-03 | 1989-01-25 | 丹阳市低压电器设备厂 | Magnetic arc dc contactor |
| DE4243249A1 (en) * | 1992-12-19 | 1994-06-23 | Abb Patent Gmbh | Electric switch device |
| CN2727944Y (en) * | 2004-08-02 | 2005-09-21 | 哈尔滨东大电工有限责任公司 | Bipolar DC contactor |
| CN2798297Y (en) * | 2005-03-22 | 2006-07-19 | 天津市第二继电器厂 | DC contactor of on-off DC current |
| CN200944379Y (en) * | 2006-08-31 | 2007-09-05 | 贵州天义电器有限责任公司 | Sealing magnetic blowout DC contactor |
| CN101315838A (en) * | 2007-05-31 | 2008-12-03 | Abb股份有限公司 | Electric installation device with an arc blow-out assembly |
| CN201918319U (en) * | 2011-01-11 | 2011-08-03 | 沈阳二一三控制电器制造有限公司 | Direct current contactor arc extinguishing device |
-
2011
- 2011-01-11 CN CN2011100039258A patent/CN102262979A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031573U (en) * | 1988-05-03 | 1989-01-25 | 丹阳市低压电器设备厂 | Magnetic arc dc contactor |
| DE4243249A1 (en) * | 1992-12-19 | 1994-06-23 | Abb Patent Gmbh | Electric switch device |
| CN2727944Y (en) * | 2004-08-02 | 2005-09-21 | 哈尔滨东大电工有限责任公司 | Bipolar DC contactor |
| CN2798297Y (en) * | 2005-03-22 | 2006-07-19 | 天津市第二继电器厂 | DC contactor of on-off DC current |
| CN200944379Y (en) * | 2006-08-31 | 2007-09-05 | 贵州天义电器有限责任公司 | Sealing magnetic blowout DC contactor |
| CN101315838A (en) * | 2007-05-31 | 2008-12-03 | Abb股份有限公司 | Electric installation device with an arc blow-out assembly |
| CN201918319U (en) * | 2011-01-11 | 2011-08-03 | 沈阳二一三控制电器制造有限公司 | Direct current contactor arc extinguishing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546541A (en) * | 2018-10-30 | 2019-03-29 | 南安市简锐工业设计有限公司 | Novel intelligent convergence control cabinet |
| CN109411298A (en) * | 2018-12-27 | 2019-03-01 | 沈阳二三控制电器制造有限公司 | A kind of high-voltage DC contactor arc-control device |
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Application publication date: 20111130 |