CN204144175U - A kind of high-voltage DC contactor - Google Patents
A kind of high-voltage DC contactor Download PDFInfo
- Publication number
- CN204144175U CN204144175U CN201420446672.0U CN201420446672U CN204144175U CN 204144175 U CN204144175 U CN 204144175U CN 201420446672 U CN201420446672 U CN 201420446672U CN 204144175 U CN204144175 U CN 204144175U
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- China
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- insulating arthropleura
- iron core
- bogie
- moving contact
- contactor
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Abstract
The utility model discloses a kind of high-voltage DC contactor, comprise body part, Electromagnetic Drive part, running part, magnetic blow-out part, arc control device, major loop part and subsidiary loop, described electromagnetic drive part divides and comprises the yoke be fixed on base, static iron core and coil, dynamic iron core is provided with above coil, being provided with outside dynamic iron core can fairlead in axial sliding, described running part comprises the bogie be connected with dynamic iron core and the pressing plate be connected with bogie, bogie and be compressed with reaction spring respectively between the first insulating arthropleura and the second insulating arthropleura; With existing contactor comparison with voltage higher grade, more reliable performance, volume are less compared with the contactor combination unit of same even load, and easy for installation, flexible, reliable, there is the advantages such as the life-span is long, breaking capacity is strong, breaking speed is fast, shock resistance is strong, compact conformation, volume are little and convenient for installation and maintenance.
Description
Technical field
The utility model relates to a kind of contactor, especially a kind of DC electromagnetic type contactor of high pressure, is mainly used in, in the stand-by circuit in electric locomotive, also can be used in the medium load systems such as electric power, metallurgy, mine, oil, communications and transportation.
Background technology
At present, the D.C. contactor that China's locomotive uses mainly contains electric empty formula and electromagnetic type two kinds, electromagnetic treadle is by electromagnetic force as power source, and electromagnetic type direct acting contactor mainly comprises body part, running part, Electromagnetic Drive part, magnetic blow-out part and arc-control device.Produce electromagnetic force during electromagnetic system energising, make armature motion and contact is connected or disjunction, thus connecting or disjunction direct current, electromagnet dead electricity contact resets.Arc-control device adopts the arc extinguishing grid pieces be arranged on above contact.
The shortcoming of above-mentioned D.C. contactor is: 1, contact capacity is little, easily occurs contact melted; 2, do not produce Relative friction between the two when moving contact and fixed contact combined floodgate separating brake, contact can not be self-cleaning; 3, arc-control device is too simple, elongating arc and the ability cooling electric arc; 4, operating voltage and insulation voltage lower; 5, contactor own wt volume is bigger than normal.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art existence, provides the DC. current electromagnetic contactor that a kind of life-span is long, breaking speed is fast, contact is self-cleaning, compact conformation, electric pressure are high and convenient for installation and maintenance.
The utility model solves the technical scheme that its technical problem adopts: a kind of high-voltage DC contactor, comprise body part, Electromagnetic Drive part, running part, magnetic blow-out part, arc control device, major loop part and subsidiary loop, described body part comprises base and the first insulating arthropleura of being located on base and the second insulating arthropleura, described electromagnetic drive part divides the yoke comprising and being fixed on base, static iron core and coil, dynamic iron core is provided with above coil, being provided with outside dynamic iron core can fairlead in axial sliding, described running part comprises the bogie be connected with dynamic iron core and the pressing plate be connected with bogie, bogie and be compressed with reaction spring respectively between the first insulating arthropleura and the second insulating arthropleura, described magnetic blow-out part comprises and is arranged on magnetic conduction iron plate on the first insulating arthropleura and the second insulating arthropleura and permanent magnet, described arc control device comprise the arc control device framework be arranged on above the first insulating arthropleura and the second insulating arthropleura, arc control device framework is provided with ceramic grid and ceramic side plate, described major loop part comprises the fixed contact busbar be arranged on permanent magnet and the moving contact be located at above fixed contact busbar, moving contact insulator foot is provided with between two moving contacts, moving contact insulator foot is positioned at above bogie, moving contact driving arm is provided with above moving contact insulator foot, moving contact driving arm is provided with contact pressure spring, described subsidiary loop comprises and is positioned at one below pressing plate and often drives two quick-action switches normally closed with.
Described a kind of high-voltage DC contactor, its first insulating arthropleura and the second insulating arthropleura are separately fixed at the left and right sides of yoke.
Described a kind of high-voltage DC contactor, its reaction spring is stage clip.
Described a kind of high-voltage DC contactor, its ceramic grid is fixed on ceramic side plate in the mode of staggered superposition.
The beneficial effects of the utility model are: with existing contactor comparison with voltage higher grade, more reliable performance, volume are less compared with the contactor combination unit of same even load, and easy for installation, flexible, reliable, there is the advantages such as the life-span is long, breaking capacity is strong, breaking speed is fast, shock resistance is strong, compact conformation, volume are little and convenient for installation and maintenance.
Accompanying drawing explanation
Fig. 1 is overall structure figure of the present utility model;
Fig. 2 is cutaway view of the present utility model.
In figure, each token name is called: 1-magnetic conduction iron plate, 2-pressing plate, 3-quick-action switch, 4-coil, 5-the first insulating arthropleura, the 6-the second insulating arthropleura, 7-moving contact, 8-permanent magnet, 9-fixed contact busbar, 10-yoke, 11-static iron core, 12-base, 13-fairlead, 14-dynamic iron core, 15-bogie, 16-reaction spring, 17-moving contact insulator foot, 18-moving contact driving arm, 19-contact pressure spring, 20-ceramic grid, 21-arc control device framework, 22-ceramic side plate.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
With reference to Fig. 1, shown in Fig. 2, the utility model discloses a kind of high-voltage DC contactor, comprise body part, Electromagnetic Drive part, running part, magnetic blow-out part, arc control device, major loop part and subsidiary loop, wherein, described body part comprises base 12 and is located at the first insulating arthropleura 5 and the second insulating arthropleura 6 on base 12, described electromagnetic drive part divides the yoke 10 comprising and being fixed on base 12, static iron core 11 and coil 4, coil 4 is for generation of the power closed a floodgate, dynamic iron core 14 is provided with above coil 4, being provided with outside dynamic iron core 14 can fairlead 13 in axial sliding, dynamic like this iron core 14 can slide axially along fairlead 13, yoke 10 is as the supporting base of Electromagnetic Drive part and conducting magnetic circuit, first insulating arthropleura 5 and the second insulating arthropleura 6 are separately fixed at the left and right sides of yoke 10, described running part comprises the bogie 15 be connected with dynamic iron core 14 and the pressing plate 2 be connected with bogie 15, bogie 15 and be compressed with reaction spring 16 respectively between the first insulating arthropleura 5 and the second insulating arthropleura 6, reaction spring 16 is for storage of power, bogie 15 is for controlling separating brake stroke, reaction spring 16, bogie 15 and pressing plate 2 constitute running part, described magnetic blow-out part comprises magnetic conduction iron plate 1 and permanent magnet 8, first insulating arthropleura 5 and the second insulating arthropleura 6 are equipped with magnetic blow-out part, described arc control device comprise the arc control device framework 21 be arranged on above the first insulating arthropleura 5 and the second insulating arthropleura 6, arc control device framework 21 is provided with ceramic grid 20 and ceramic side plate 22, pottery grid 20 is fixed on ceramic side plate 22 in the mode of staggered superposition, described major loop part comprises the fixed contact busbar 9 be arranged on permanent magnet 8 and the moving contact 7 be located at above fixed contact busbar 9, moving contact insulator foot 17 is provided with between two moving contacts 7, moving contact insulator foot 17 is positioned at above bogie 15, moving contact driving arm 18 is provided with above moving contact insulator foot 17, moving contact driving arm 18 is provided with contact pressure spring 19, contact pressure spring 19 is for providing closing retention force, described subsidiary loop comprises and is positioned at one below pressing plate 2 and often drives two quick-action switches 3 normally closed with.
The utility model is in disjunction state in an initial condition, and moving contact 7 and fixed contact busbar 9 disconnect.
When closing a floodgate during energising, coil 4 produces electromagnetic force and attracts dynamic iron core 14 to move down, dynamic iron core 14 drives bogie 15 and moving contact driving arm 18 to drive moving contact 7 to move down, moving contact 7 and fixed contact busbar 9 close and produce relative sliding and realize self-cleaning, and bogie 15 compresses reaction spring 16 storage of power further; During dead electricity separating brake, the electromagnetic force that coil 4 produces disappears, and compression reaction spring 16 discharges storage of power, and drive bogie 15 to draw high moving contact driving arm 18, moving contact 7 and fixed contact busbar 9 depart from.
Now, between moving contact 7 and fixed contact busbar 9, produce electric arc, electric arc, by the effect of magnetic conduction iron plate 1 with permanent magnet 8, produces Ampere force and is blown into arc control device, electric arc enters after arc control device to be separated, elongates and cooling electric arc under the effect of ceramic grid 20, reaches the requirement of extinguish arcs.
Pressing plate 2 contacts with quick-action switch 3 and discharges, to provide corresponding state signal under bogie 15 drives.
The utility model is compared with existing contactor, and tool has the following advantages:
1, helix tube electromagnet forms helix tube type contactor, and jointly used as installing rack and magnetic circuit by yoke 10, compact conformation takes up room little, and is conducive to heat radiation;
2, moving contact driving arm 18 drives moving contact 7, ensures clearance between open contacts, accelerates opening velocity;
3, contact system uses main contact, by the rotation of moving contact driving arm during combined floodgate, moving contact 7 and fixed contact busbar 9 relative sliding are wiped self-cleaning, dust out, tiny foreign material and contact surface oxide layer, reduce contact resistance, this effectively can extend the electric life of switch.Contact pressure spring 19 is when closing a floodgate for moving contact and fixed contact provide confining force, and the characteristic line of spring is non-linear, has good bounce-proof effect, reduces the generation of contact melting welding.
4, adopt permanent magnet arc-blowing device independent of the mode of major loop, stable magnetic blow-out magnetic field is provided, take up room little, electric arc is made to enter arc control device fast, reduce the arc root scaling loss to contact and arc leading angle, improve response speed and the accuracy of arc blow-out, magnetic blow-out is independent of major loop when arc blow-out for permanent magnet, and major loop has polar requirement;
5, arc control device adopt ceramic grid to interlock overlaying structure, and after electric arc enters arc control device, arc control device utilize the staggered grid segmentation of structures in left and right in arc chamber, elongation and cooling electric arc, make electric arc extinguish fast;
6, switch motion counter-force uses stage clip as reaction spring 16, takes up room so little, and easy for installation, and reaction spring 16 completes separating brake action when coil 4 dead electricity, stage clip Direct driver bogie, improves accuracy and the reliability of separating brake.
7, bogie 15 drives auxiliary switch by pressing plate 2, output status signal.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only; and the embodiment that part is used; for the person of ordinary skill of the art; under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (4)
1. a high-voltage DC contactor, it is characterized in that: comprise body part, Electromagnetic Drive part, running part, magnetic blow-out part, arc control device, major loop part and subsidiary loop, described body part comprises base (12) and the first insulating arthropleura (5) of being located on base (12) and the second insulating arthropleura (6), described electromagnetic drive part divides the yoke (10) comprising and being fixed on base (12), static iron core (11) and coil (4), coil (4) top is provided with dynamic iron core (14), being provided with outside dynamic iron core (14) can fairlead (13) in axial sliding, described running part comprises the bogie (15) be connected with dynamic iron core (14) and the pressing plate (2) be connected with bogie (15), bogie (15) and be compressed with reaction spring (16) respectively between the first insulating arthropleura (5) and the second insulating arthropleura (6), described magnetic blow-out part comprises and is arranged on magnetic conduction iron plate (1) on the first insulating arthropleura (5) and the second insulating arthropleura (6) and permanent magnet (8), described arc control device comprise the arc control device framework (21) being arranged on the first insulating arthropleura (5) and the second insulating arthropleura (6) top, arc control device framework (21) is provided with ceramic grid (20) and ceramic side plate (22), described major loop part comprises the fixed contact busbar (9) be arranged on permanent magnet (8) and the moving contact (7) being located at fixed contact busbar (9) top, moving contact insulator foot (17) is provided with between two moving contacts (7), moving contact insulator foot (17) is positioned at bogie (15) top, moving contact insulator foot (17) top is provided with moving contact driving arm (18), moving contact driving arm (18) is provided with contact pressure spring (19), described subsidiary loop comprise be positioned at pressing plate (2) below one often open two quick-action switches (3) normally closed with.
2. a kind of high-voltage DC contactor according to claim 1, is characterized in that, described the first insulating arthropleura (5) and the second insulating arthropleura (6) are separately fixed at the left and right sides of yoke (10).
3. a kind of high-voltage DC contactor according to claim 2, is characterized in that, described reaction spring (16) is stage clip.
4. a kind of high-voltage DC contactor according to claim 1 or 2 or 3, is characterized in that, described ceramic grid (20) is fixed on ceramic side plate (22) in the mode of staggered superposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420446672.0U CN204144175U (en) | 2014-08-09 | 2014-08-09 | A kind of high-voltage DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420446672.0U CN204144175U (en) | 2014-08-09 | 2014-08-09 | A kind of high-voltage DC contactor |
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| CN204144175U true CN204144175U (en) | 2015-02-04 |
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| CN201420446672.0U Active CN204144175U (en) | 2014-08-09 | 2014-08-09 | A kind of high-voltage DC contactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252164A (en) * | 2016-08-31 | 2016-12-21 | 贵州天义电器有限责任公司 | A kind of track traffic high-voltage DC contactor |
| CN108831802A (en) * | 2018-06-27 | 2018-11-16 | 深圳巴斯巴汽车电子有限公司 | high voltage direct current relay with auxiliary contact |
-
2014
- 2014-08-09 CN CN201420446672.0U patent/CN204144175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106252164A (en) * | 2016-08-31 | 2016-12-21 | 贵州天义电器有限责任公司 | A kind of track traffic high-voltage DC contactor |
| CN108831802A (en) * | 2018-06-27 | 2018-11-16 | 深圳巴斯巴汽车电子有限公司 | high voltage direct current relay with auxiliary contact |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |