CN205487908U - DC vacuum contactor - Google Patents
DC vacuum contactor Download PDFInfo
- Publication number
- CN205487908U CN205487908U CN201620062039.0U CN201620062039U CN205487908U CN 205487908 U CN205487908 U CN 205487908U CN 201620062039 U CN201620062039 U CN 201620062039U CN 205487908 U CN205487908 U CN 205487908U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- accommodation space
- pedestal
- switch tube
- busbar
- 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
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a DC vacuum contactor, including bed frame and last shrouding, the accommodation space has in the bed frame, go up the shrouding lid and fit the bed frame top with the closure accommodation space, vacuum switch tube are located this accommodation space, and screw crimping electrical drainage for is led with first to this vacuum switch tube's quiet end, move the end and lead the electrical drainage crimping through flexible coupling and second, and transmission connecting lever is gliding to be installed in the mounting hole of correspondence in the middle of the bed frame to through the drive of the operating device in the accommodation space, auxiliary switch installs in the space at bed frame middle part, vacuum switch tube's the end that moves still link to each other through screw and transmission connecting lever. The utility model has the advantages that: in specified dc circuit system, can accomplish under the vacuum state and close a floodgate and the separating brake, realized vacuum contactor major breakthrough again in the aspect of cut -offfing dc circuit, the new times of having started DC vacuum contactor again.
Description
Technical field
This utility model relates to the technical field of vacuum contactor, particularly relates to a kind of simple in construction, DC vacuum contactor that practicality is good.
Background technology
Vacuum contactor is the catalyst that a kind of contact closes point in high vacuum environment.Most current vacuum contactor includes housing, solenoid, transmission crank arm, auxiliary contactor etc., but this vacuum contactor is disadvantageous in that: can only use in alternating current circuit, it is impossible to cut-off DC circuit, and present direct current is air type catalyst and includes housing, coil, contact, arc-extinguish chamber etc., but this easy scaling loss in D.C. contactor contact, oxidation, electric arc arc light in atmosphere is bigger.
To this end, designer of the present utility model is because drawbacks described above, by concentrating on studies and designing, comprehensive experience and the achievement being engaged in related industry for a long time for many years, research design goes out a kind of direct current high-altitude catalyst, to overcome drawbacks described above.
Summary of the invention
Problem to be solved in the utility model is to improve to close in prior art and cutoff method, makes direct-current arc extinguish in vacuum switch tube, reaches vacuum contactor and controls the on and off of energy DC line.
The technical solution of the utility model is: a kind of DC vacuum contactor, including pedestal and upper sealing plate, in described pedestal, there is accommodation space, described upper sealing plate is covered on above pedestal to close described accommodation space, vacuum switch tube is positioned at this accommodation space, quiet end and the first busbar screw of this vacuum switch tube crimp, moved end crimps with the second busbar by being flexible coupling, transmission crank arm is slidably mounted in installing hole corresponding in the middle of pedestal, and driven by the operating mechanism in accommodation space, auxiliary switch is installed in the space in the middle part of pedestal；The moved end of described vacuum switch tube is connected with transmission crank arm also by screw.
Described operating mechanism includes armature card, yoke plate, spring base, tripping spring, iron core and coil, described armature card is fixed in described transmission crank arm, described yoke plate is fixed on described pedestal, and described tripping spring is arranged between armature card and described yoke plate by spring base；Described iron core sleeve is contained in described coil, and this iron core is fixed on described yoke plate.
Described vacuum switch tube is three, arranged in parallel in accommodation space, conductive connection manner is by the series connection that is flexible coupling, and described first busbar and the second busbar are connected with the vacuum tube two ends after series connection respectively, it is distributed in both sides before and after pedestal, as end of incoming cables and leading-out terminal.
The utility model has the advantages that: in nominal DC circuit system, switch closing and switch opening can be completed under vacuum conditions, it is achieved that vacuum contactor is another important breakthrough in terms of cut-offfing DC circuit, start again the New Times of DC vacuum contactor.
DC circuit can also be solved close under vacuum conditions and cut-off simultaneously, reduce arc light infringement and electrical contact scaling loss and oxidation.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model DC vacuum contactor；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the structural representation of operating mechanism in Fig. 1.
Description of reference numerals:
1, upper sealing plate；2, pedestal；3, vacuum switch tube；4, busbar；5, it is flexible coupling；6, armature card；7, tripping spring；8, yoke plate；9, coil；10, iron core；11, spring base；12, transmission crank arm；13, auxiliary switch.
Detailed description of the invention
Further describe this utility model below in conjunction with specific embodiment, advantage of the present utility model and feature will be with describe and apparent.But these embodiments are only exemplary, scope of the present utility model is not constituted any restriction.It will be understood by those skilled in the art that and the details of technical solutions of the utility model and form can be modified or replace under without departing from spirit and scope of the present utility model, but these amendments and replacement each fall within protection domain of the present utility model.
See Fig. 1 to Fig. 3, this utility model relates to a kind of DC vacuum contactor, including pedestal 2 and upper sealing plate 1, in described pedestal 2, there is accommodation space, described upper sealing plate 1 is covered on above pedestal 2 to close described accommodation space, vacuum switch tube 3 is positioned at accommodation space, busbar 4 includes the first busbar and the second busbar, quiet end and the first busbar screw of vacuum switch tube 3 crimp, moved end 5 crimps with described second busbar by being flexible coupling, transmission crank arm 12 is slidably mounted in installing hole corresponding in the middle of pedestal 2, and driven by the operating mechanism in accommodation space, auxiliary switch 13 is installed in the space in the middle part of pedestal 2；The moved end of described vacuum switch tube is connected with transmission crank arm also by screw.
Described operating mechanism includes armature card 6, yoke plate 8, spring base 11, tripping spring 7, iron core 10 and coil 9, described armature card 6 is fixed in described transmission crank arm 12, described yoke plate 8 is fixed on described pedestal 2, and described tripping spring 7 is arranged between armature card 6 and described yoke plate 8 by spring base 11；Described iron core 10 is sleeved in described coil 9, and this iron core 10 is fixed on described yoke plate 8.
Described vacuum switch tube 3 is three, arranged in parallel in accommodation space, conductive connection manner is by the series connection that is flexible coupling, and described first busbar and the second busbar are connected with the vacuum tube two ends after series connection respectively, it is distributed in both sides before and after pedestal, as end of incoming cables and leading-out terminal；During disjunction DC circuit, these three vacuum fracture is connected together, cut-off DC circuit moment two ends vacuum fracture have residual voltage, this residual voltage is able to maintain that direct-current arc, and interjacent vacuum fracture does not has residual voltage, direct-current arc is extinguished naturally, reaches the purpose of mandatory extinguishing direct-current arc.The application can solve DC circuit and can close under vacuum conditions and cut-off, and reduces arc light infringement and electrical contact scaling loss and oxidation.
Operation principle of the present utility model is: when operating mechanism is applied in operation voltage, coil obtains electric, produces magnetic force and then drives transmission crank arm to move downward, and drives the conducting rod of three vacuum switch tubes to be synchronized with the movement simultaneously, tripping spring energy storage, vacuum switch tube circuit closed；When removing operation voltage, tripping spring promotes transmission crank arm to move upward, it is achieved can occur three vacuum fractures in the electric loop of described vacuum switch tube simultaneously, thus realize vacuum switch tube and can control the on and off of DC circuit.
In nominal DC circuit system, switch closing and switch opening can be completed under vacuum conditions, it is achieved that vacuum contactor is another important breakthrough in terms of cut-offfing DC circuit, start again the New Times of DC vacuum contactor.
Claims (3)
1. a DC vacuum contactor, it is characterized in that, including pedestal and upper sealing plate, in described pedestal, there is accommodation space, described upper sealing plate is covered on above pedestal to close described accommodation space, vacuum switch tube is positioned at this accommodation space, quiet end and the first busbar screw of this vacuum switch tube crimp, moved end crimps with the second busbar by being flexible coupling, transmission crank arm is slidably mounted in installing hole corresponding in the middle of pedestal, and driven by the operating mechanism in accommodation space, auxiliary switch is installed in the space in the middle part of pedestal；The moved end of described vacuum switch tube is connected with transmission crank arm also by screw.
DC vacuum contactor the most according to claim 1, it is characterized in that, described operating mechanism includes armature card, yoke plate, spring base, tripping spring, iron core and coil, described armature card is fixed in described transmission crank arm, described yoke plate is fixed on described pedestal, and described tripping spring is arranged between armature card and described yoke plate by spring base；Described iron core sleeve is contained in described coil, and this iron core is fixed on described yoke plate.
DC vacuum contactor the most according to claim 1 and 2, it is characterized in that, described vacuum switch tube is three, arranged in parallel in accommodation space, conductive connection manner is by the series connection that is flexible coupling, described first busbar and the second busbar are connected with the vacuum tube two ends after series connection respectively, are distributed in both sides before and after pedestal, as end of incoming cables and leading-out terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620062039.0U CN205487908U (en) | 2016-01-22 | 2016-01-22 | DC vacuum contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620062039.0U CN205487908U (en) | 2016-01-22 | 2016-01-22 | DC vacuum contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205487908U true CN205487908U (en) | 2016-08-17 |
Family
ID=56639032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620062039.0U Expired - Fee Related CN205487908U (en) | 2016-01-22 | 2016-01-22 | DC vacuum contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205487908U (en) |
-
2016
- 2016-01-22 CN CN201620062039.0U patent/CN205487908U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20160817 Termination date: 20180122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |