CN204088180U - Closed powerful vacuum three-phase ac contactor - Google Patents
Closed powerful vacuum three-phase ac contactor Download PDFInfo
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- CN204088180U CN204088180U CN201420541488.4U CN201420541488U CN204088180U CN 204088180 U CN204088180 U CN 204088180U CN 201420541488 U CN201420541488 U CN 201420541488U CN 204088180 U CN204088180 U CN 204088180U
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- vacuum
- support frame
- contactor
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- body frame
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000010276 construction Methods 0.000 claims abstract description 14
- 208000006011 Stroke Diseases 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 14
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 11
- 229910052571 earthenware Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000002386 leaching Methods 0.000 claims description 4
- 239000002966 varnish Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 13
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910052752 metalloid Inorganic materials 0.000 description 3
- 150000002738 metalloids Chemical class 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a kind of closed powerful vacuum three-phase ac contactor, comprise base, auxiliary switch, support frame, main body frame and case, support frame and main body frame are set in turn in above base, case is arranged to make this case, main body frame above main body frame, form an enclosed construction between support frame and base, and auxiliary switch is arranged on support frame lateral surface; Main body frame clear width is provided with some vacuum switch tubes, each vacuum switch tube arranged respectively limiting plate, excess of stroke stage clip, be flexible coupling and conductive plate, be provided with arc wall between adjacent vacuum switching tube, in support frame, below corresponding each vacuum switch tube, be respectively equipped with a connecting lever; The magnetic circuit of coil, iron core and armature composition is also provided with in enclosed construction.This closed powerful vacuum three-phase ac contactor adopts enclosed construction, substantially increases the reliability of contact, the number of times of resistance to life-span of product, resistance to corrosion, insulation property and high voltage bearing ability.
Description
Technical field
The utility model relates to a kind of vacuum three-phase ac contactor, particularly relates to a kind of closed powerful vacuum three-phase ac contactor.
Background technology
Vacuum three-phase ac contactor is a kind of mechanical switch, namely by the joint weldment of the mechanical movement realizing circuit of contact in vacuum switch tube, the vacuum medium of utility excellence makes insulation isolation and arc extinguishing means, thus has operating voltage compared with advantages such as high, the arcing time is short, contact electrical wear is few, contact surface non-oxidations.But also there is some other defect: first, or the material selection electrical pure iron of iron core and armature is steel metalloid materials in the magnetic circuit part of existing vacuum three-phase ac contactor, because electrical pure iron and steel class material can be accelerated polarization under long-term electromagnetic action, the reliability of contactor is caused constantly to decline.The second, existing vacuum three-phase ac contactor adopts open structural design, and contactor in use has a large amount of dust or block object is adsorbed on around magnetic circuit system, causes the stuck rear contactor of magnetic circuit system normally to work.In addition, open structural design makes vacuum switch tube completely in atmosphere exposed, if there is the material of liquid type directly to enter in the cavity of contactor, contactor can be caused to be corroded, serious situation in use causes phase fault to cause vacuum switch tube to be blasted.3rd; the assembling of existing vacuum three-phase ac contactor is complicated; debug difficulties; parameter consistency is poor; and existing vacuum three-phase ac contactor is for joint weldment circuit; the ability of especially suitable Fraquent start and stopping for controlling three-phase alternating-current motor is poor, can not form magnetic starter with various protective device.4th, existing vacuum three-phase ac contactor many employings mechanical structure conversion and control coil, need add surge suppressor, and coil high power consumption keeps, and belongs to high energy consumption vacuum contactor.5th, existing vacuum three-phase ac contactor cannot use with the replacement of the installation of external contactor and performance.
Summary of the invention
In order to overcome above-mentioned defect, the utility model provides a kind of closed powerful vacuum three-phase ac contactor, and structure is simple, and easy to assembly, insulation property and high voltage performance have also been obtained and greatly improve.
The utility model in order to the technical scheme solving its technical problem and adopt is: a kind of closed powerful vacuum three-phase ac contactor, comprise base, auxiliary switch, support frame, main body frame and case, described support frame and main body frame are set in turn in above described base, and described case is arranged at and makes this case, main body frame above described main body frame, forms an enclosed construction between support frame and base, described auxiliary switch is arranged on described support frame lateral surface; Described main body frame clear width is provided with some vacuum switch tubes, each vacuum switch tube arranged respectively limiting plate, excess of stroke stage clip, be flexible coupling and conductive plate, this excess of stroke stage clip one end is against vacuum switch tube, arc wall is provided with between adjacent vacuum switching tube, a connecting lever is also respectively equipped with below corresponding each vacuum switch tube in described support frame, the middle part of this connecting lever is rotatably arranged on described support frame by bearing, the upper end of this connecting lever against the excess of stroke stage clip other end, the main stage clip of lower end abutment one of this connecting lever; Also be provided with the magnetic circuit of coil, iron core and armature composition in described enclosed construction, this armature is arranged on described connecting lever, and coil is arranged at outside iron core.
As further improvement of the utility model, the contact of described vacuum switch tube is packaged in earthenware.
As further improvement of the utility model, described iron core and armature are that silicon steel sheet material is made, and the surface of this silicon steel sheet is through the process of leaching insulating varnish.
As further improvement of the utility model, described coil is simplex winding coil.
Compared with prior art, the beneficial effects of the utility model are:
(1) the major loop contact terminal of contactor is sealed in ceramic-vacuum tube by the present invention completely, is first encapsulated in earthenware by contact part, then earthenware is carried out under vacuum seal welding and made hermetic vacuum switch tube.The present invention is by the joint weldment of the mechanical movement realizing circuit of contact in vacuum switch tube, the vacuum medium of utility excellence makes insulation isolation and arc extinguishing means, thus has operating voltage compared with advantages such as high, the arcing time is short, contact electrical wear is few, contact surface non-oxidations.Main contact is placed under vacuum condition by the present invention also has its advantage: 1. under vacuum degree condition (air pressure is lower than 1.33 × 10-2Pa) insulation property far above air; 2. closed vacuum three-phase ac contactor electric arc in make and break process is isolated from the outside; 3. galvano-cautery is little, and the normal electrical life-span is at 500,000 times; 4. improve the insulation property of product.
(2) the silicon steel material that the iron core of this closed powerful vacuum three-phase ac contactor and the material selection of armature part performance is more superior, silicon steel material is dressed up core portion and armature part by again carrying out riveting after mould molding, and between every layer of silicon steel sheet, carry out the process of leaching insulating varnish, reduce the eddy current loss heating in galvanization, the polarization speed of silicon steel material is made to be significantly less than electrical pure iron and steel metalloid material, greatly reduce metal material em polarization, even without electromagnetism plan, substantially increase the useful life of electromagnet portion and ensure that the stability of product quality.
(3) the structure of this closed powerful vacuum three-phase ac contactor adopts enclosed construction, and namely the base of contactor and framework all adopt enclosed construction, avoids a large amount of bisque and enters the inner and corrosive gas of contactor or liquid to the corrosion of contactor; Framework have employed the design of arc wall, increase and climb arcing distance between contact sets, add the object of insulation property between contacts of contactor group and high voltage performance, therefore, the reliability of contact, the number of times of resistance to life-span of product, resistance to corrosion, insulation property and high voltage bearing ability is substantially increased.
(4) product structure design becomes five major parts to assemble respectively by this closed powerful vacuum three-phase ac contactor, and connecting lever part adopts bearing locating rotation mode, assembling one-time-reach-place, relatively simple, without any need for debugging after having assembled, reduce the friction and wear between connecting lever and other spare parts, more be conducive to the joint weldment circuit of contactor, thus reduce the debugging difficulty of contactor, the parameter consistency of contactor is guaranteed, and be conducive to the Fraquent start and the stopping that controlling three-phase alternating-current motor, magnetic starter can be formed with various protective device.
(5) this closed powerful vacuum three-phase ac contactor coil, coil design is become simplex winding coil, actuating section electronic module controls, by the startup power consumption control of contactor below one kilowatt, and hold-in winding power consumption can control below ten watts, really accomplish that contactor normally, reliably works under low-power consumption.
(6) this closed powerful vacuum three-phase ac contactor adopts the structural design thinking that the more excellent vacuum switch tube elements of performance and enclosed construction combine, and therefore, is more better than external contactor at aspect of performance.Thus the replacement completely achieved with the installation of external contactor and performance.
Accompanying drawing explanation
Fig. 1 is the utility model perspective view;
Fig. 2 is the utility model main body frame part-structure schematic diagram;
Fig. 3 is the utility model connecting lever part-structure schematic diagram;
Fig. 4 is the utility model internal structure schematic diagram.
By reference to the accompanying drawings, make the following instructions:
1---case 2---main body frame
3---support frame 4---auxiliary switch
5---base 6---vacuum switch tube
7---limiting plate 8---excess of stroke stage clip
9---being flexible coupling 10---conductive plate
11---arc wall 12---connecting lever
13---bearing 14---main stage clip
Embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present utility model is elaborated.But protection range of the present utility model is not limited to following embodiment, the simple equivalence namely in every case done with the utility model claim and description changes and modifies, and all still belongs within the utility model patent covering scope.
Refer to accompanying drawing 1-4, a kind of closed powerful vacuum three-phase ac contactor, comprise base 5, auxiliary switch 4, support frame 3, main body frame 2 and case 1, described support frame and main body frame are set in turn in above described base, and described case is arranged at and makes this case, main body frame above described main body frame, forms an enclosed construction between support frame and base, described auxiliary switch 4 is arranged on described support frame lateral surface; Described main body frame clear width is provided with some vacuum switch tubes 6, each vacuum switch tube is arranged respectively limiting plate 7, excess of stroke stage clip 8, be flexible coupling 9 and conductive plate 10, this excess of stroke stage clip one end is against vacuum switch tube, arc wall 11 is provided with between adjacent vacuum switching tube, a connecting lever 12 is also respectively equipped with below corresponding each vacuum switch tube in described support frame, the middle part of this connecting lever is rotatably arranged on described support frame by bearing 13, the upper end of this connecting lever against the excess of stroke stage clip other end, the main stage clip 14 of lower end abutment one of this connecting lever; Also be provided with the magnetic circuit of coil, iron core and armature composition in described enclosed construction, this armature is arranged on described connecting lever, and coil is arranged at outside iron core.
When giving the coil electricity of contactor, alternating current is converted to direct current by electronic module, coil produces electromagnetic attraction after generating an electromagnetic field after obtaining direct current and iron core being magnetized, under the effect of electromagnetic attraction, the counter-force that armature in connecting lever part drives connecting lever part to overcome main stage clip makes armature and iron core adhesive, simultaneously, the counter-force that connecting lever part overcomes excess of stroke stage clip makes vacuum switch tube close and produces overtravel, work under making contactor be in hold mode, coil under hold mode is that the low-voltage by providing after miniature transformer transformation carries out low-power consumption maintenance work, power consumption is kept to be only 4W, when after coil blackout, electromagnetic field pop-off on coil, meanwhile, the electromagnetic attraction of iron core also disappears thereupon, therefore, armature and iron core are owing to disconnecting without electromagnetic attraction cannot keep, while disconnection, connecting lever part makes vacuum switch tube disconnect under the acting in conjunction of main stage clip and excess of stroke stage clip counter-force, makes contactor be in normally open, like this, contactor completes the conversion of a work period.
The structure of this closed powerful vacuum three-phase ac contactor adopts enclosed construction, and namely the base of contactor and framework all adopt enclosed construction, avoids a large amount of bisque and enters the inner and corrosive gas of contactor or liquid to the corrosion of contactor; Framework have employed the design of arc wall, increase and climb arcing distance between contact sets, add the object of insulation property between contacts of contactor group and high voltage performance, therefore, the reliability of contact, the number of times of resistance to life-span of product, resistance to corrosion, insulation property and high voltage bearing ability is substantially increased.
Product structure design becomes five major parts to assemble respectively by this closed powerful vacuum three-phase ac contactor, and connecting lever part adopts bearing locating rotation mode, assembling one-time-reach-place, relatively simple, without any need for debugging after having assembled, reduce the friction and wear between connecting lever and other spare parts, more be conducive to the joint weldment circuit of contactor, thus reduce the debugging difficulty of contactor, the parameter consistency of contactor is guaranteed, and be conducive to the Fraquent start and the stopping that controlling three-phase alternating-current motor, magnetic starter can be formed with various protective device.
Preferably, the contact of described vacuum switch tube is packaged in earthenware, then earthenware is carried out under vacuum seal welding and made hermetic vacuum switch tube.The present invention is by the joint weldment of the mechanical movement realizing circuit of contact in vacuum switch tube, the vacuum medium of utility excellence makes insulation isolation and arc extinguishing means, thus has operating voltage compared with advantages such as high, the arcing time is short, contact electrical wear is few, contact surface non-oxidations.Main contact is placed under vacuum condition by the present invention also has its advantage: 1. under vacuum degree condition (air pressure is lower than 1.33 × 10-2Pa) insulation property far above air; 2. closed vacuum three-phase ac contactor electric arc in make and break process is isolated from the outside; 3. galvano-cautery is little, and the normal electrical life-span is at 500,000 times; 4. improve the insulation property of product.
Preferably, described iron core and armature are that silicon steel sheet material is made, and the surface of this silicon steel sheet is through the process of leaching insulating varnish, reduce the eddy current loss heating in galvanization, the polarization speed of silicon steel material is made to be significantly less than electrical pure iron and steel metalloid material, greatly reduce metal material em polarization, even without electromagnetism plan, substantially increase the useful life of electromagnet portion and ensure that the stability of product quality
Preferably, described coil is simplex winding coil, and actuating section electronic module controls, by the startup power consumption control of contactor below one kilowatt, and hold-in winding power consumption can control below ten watts, really accomplish that contactor normally, reliably works under low-power consumption.
Claims (4)
1. a closed powerful vacuum three-phase ac contactor, it is characterized in that: comprise base (5), auxiliary switch (4), support frame (3), main body frame (2) and case (1), described support frame and main body frame are set in turn in above described base, and described case is arranged at and makes this case, main body frame above described main body frame, forms an enclosed construction between support frame and base, described auxiliary switch (4) is arranged on described support frame lateral surface, described main body frame clear width is provided with some vacuum switch tubes (6), each vacuum switch tube is arranged respectively limiting plate (7), excess of stroke stage clip (8), be flexible coupling (9) and conductive plate (10), this excess of stroke stage clip one end is against vacuum switch tube, arc wall (11) is provided with between adjacent vacuum switching tube, a connecting lever (12) is also respectively equipped with below corresponding each vacuum switch tube in described support frame, the middle part of this connecting lever is rotatably arranged on described support frame by bearing (13), the upper end of this connecting lever is against the excess of stroke stage clip other end, the main stage clip of lower end abutment one (14) of this connecting lever, also be provided with the magnetic circuit of coil, iron core and armature composition in described enclosed construction, this armature is arranged on described connecting lever, and coil is arranged at outside iron core.
2. closed powerful vacuum three-phase ac contactor according to claim 1, is characterized in that: the contact of described vacuum switch tube is packaged in earthenware.
3. closed powerful vacuum three-phase ac contactor according to claim 1, is characterized in that: described iron core and armature are that silicon steel sheet material is made, and the surface of this silicon steel sheet is through the process of leaching insulating varnish.
4. closed powerful vacuum three-phase ac contactor according to claim 1, is characterized in that: described coil is simplex winding coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541488.4U CN204088180U (en) | 2014-09-19 | 2014-09-19 | Closed powerful vacuum three-phase ac contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541488.4U CN204088180U (en) | 2014-09-19 | 2014-09-19 | Closed powerful vacuum three-phase ac contactor |
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| Publication Number | Publication Date |
|---|---|
| CN204088180U true CN204088180U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420541488.4U Expired - Fee Related CN204088180U (en) | 2014-09-19 | 2014-09-19 | Closed powerful vacuum three-phase ac contactor |
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| CN (1) | CN204088180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183415A (en) * | 2014-09-19 | 2014-12-03 | 昆山瑞普电气有限公司 | Closed type high-power vacuum three-phase alternating current contactor |
-
2014
- 2014-09-19 CN CN201420541488.4U patent/CN204088180U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183415A (en) * | 2014-09-19 | 2014-12-03 | 昆山瑞普电气有限公司 | Closed type high-power vacuum three-phase alternating current contactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 |