CN201478192U - Direct-connected permanent magnet vacuum switch - Google Patents
Direct-connected permanent magnet vacuum switch Download PDFInfo
- Publication number
- CN201478192U CN201478192U CN2009202263966U CN200920226396U CN201478192U CN 201478192 U CN201478192 U CN 201478192U CN 2009202263966 U CN2009202263966 U CN 2009202263966U CN 200920226396 U CN200920226396 U CN 200920226396U CN 201478192 U CN201478192 U CN 201478192U
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- permanent magnet
- insulator
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- armature
- connector
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Abstract
The utility model provides a direct-connected permanent magnet vacuum switch which comprises an insulation housing that is internally provided with a vacuum explosion chamber. A static conducting bar in the vacuum explosion chamber is connected with a static contact terminal. A movable conducting bar in the vacuum explosion chamber is connected with a movable contact terminal. The insulation housing is internally provided with a leading-out terminal. One end of the leading-out terminal extends out from the insulation housing. The movable conducting bar is connected with one end of a connector. The other end of the connector penetrates the leading-out terminal and is connected with one end of an insulator. The other end of the insulator is connected with an armature of a permanent magnet mechanism. The connector is connected with the leading-out terminal through a conductive connector. The direct-connected permanent magnet vacuum switch can guarantee that the movable contact terminal and the static contact terminal in the vacuum explosion chamber are parallelly closed or separated. Therefore arcing phenomenon or sintering between two contact terminals in the vacuum explosion chamber can be effectively prevented. The service life of the device can be prolonged and the switch safety is increased.
Description
Technical field
The utility model relates to a kind of high-tension circuit switch, exactly is a kind of associated mode permanent magnetism vacuum switch.
Background technology
At present, all kinds of high-pressure vacuum switchs that existing power industry is used, its structure all makes insulator be connected with permanent-magnet structure by connecting lever, because when the switch of said structure was done the switch motion up and down at permanent magnet mechanism, connecting lever was to do movement in a curve, therefore, make two indoor contact terminals of vacuum extinction be difficult to parallel contact, but the some contact easily produces sintering or arcing phenomenon because of immediate current is excessive, have a strong impact on the fail safe and the useful life of switchgear.
Summary of the invention
The purpose of this utility model, provided a kind of associated mode permanent magnetism vacuum switch, it can guarantee that the indoor sound of vacuum extinction two contact terminals are parallel closure or separation, thereby, can prevent to take place between two contact terminals of vacuum interrupter arcing phenomenon or sintering effectively, can prolong the useful life of equipment, improve the fail safe of switch.
The purpose of this utility model is achieved through the following technical solutions: associated mode permanent magnetism vacuum switch, comprise insulation shell, vacuum interrupter is installed in the insulation shell, the static conductive rod of vacuum interrupter is connected with quiet contact terminal, the moving conductive rod of vacuum interrupter is connected with moving contact terminal, leading-out terminal is installed in the insulation shell, one end of leading-out terminal stretches out outside the insulation shell, moving conductive rod is connected with an end of connector, the other end of connector passes leading-out terminal and is connected with an end of insulator, the other end of insulator is connected with the armature of permanent magnet mechanism, and connector is connected by conducting connecting part with leading-out terminal.
For further realizing the purpose of this utility model, can also realize by the following technical solutions: an end of insulator is provided with connecting rod, offer chute on the connecting rod, insulator is connected with permanent magnet mechanism by regulating sleeve, offer mounting groove and screw on the regulating sleeve, screw communicates with mounting groove, offer circular hole on the sidewall of mounting groove, installing and locating pin in circular hole and the chute is provided with internal thread on the inwall of screw, and the outer wall of armature is provided with external screw thread, armature is threaded with screw, the periphery of connecting rod is installed regulating spring, and an end of regulating spring contacts with insulator, and the other end of regulating spring contacts with regulating sleeve.Described conducting connecting part is connected and composed by moving sheet metal, quiet sheet metal and spring copper foil, and moving sheet metal is installed on the connector, and quiet sheet metal, mounting spring copper foil between moving sheet metal and the quiet sheet metal are installed on the leading-out terminal.Permanent magnet mechanism is connected and composed by insulating case, loam cake, lower cover, first coil, second coil and permanent magnet, armature is installed in the insulating case, the periphery of armature is installed first coil, second coil and permanent magnet, and the two ends of insulating case are installed loam cake and lower cover respectively, construction bolt between loam cake and the lower cover.
Good effect of the present utility model is: it is equipped with permanent magnet mechanism, it is closed with quiet contact terminal or separate that the armature of permanent magnet mechanism drives the indoor moving contact terminal of vacuum extinction by insulator, whole course of action is rectilinear motion, can prevent the sound two-terminal origination point contact of vacuum interrupter effectively, thereby, can be maximum extremely avoid the two contact terminal relative motions of vacuum interrupter sound the time phenomenons such as arcing or sintering take place, can prolong the useful life of switch, and try to avert accidents.The utility model also has compactness simple for structure, advantage safe and convenient to use.
Description of drawings
Fig. 1 is a structural representation of the present utility model; Fig. 2 is the structure for amplifying schematic diagram of regulating sleeve described in the utility model; Fig. 3 is the structure for amplifying schematic diagram of permanent magnet mechanism described in the utility model.
Number in the figure: 1 vacuum interrupter, 2 insulators, 3 permanent magnet mechanisms, 4 insulation shells, 5 spring copper foils, 6 leading-out terminals, 7 connectors, 8 regulating springs, 9 regulating sleeves, 10 pedestals, 11 quiet contact terminal 12 moving contact terminal 13 moving sheet metal 14 quiet sheet metal 15 chutes 16 mounting grooves 17 screws 18 first coils 19 insulation sleeves 20 permanent magnets 21 lower covers 22 neck bush 23 bolts 24 alignment pins 25 circular holes 26 static conductive rods 27 moving conductive rods 28 connecting rods 29 armature 30 loam cakes 31 second coils 32 splicing sleeves 33 compress rubber ring.
Embodiment
Associated mode permanent magnetism vacuum switch described in the utility model, comprise insulation shell 4, vacuum interrupter 1 is installed in the insulation shell 4, the static conductive rod 26 of vacuum interrupter 1 is connected with quiet contact terminal 11, the moving conductive rod 27 of vacuum interrupter 1 is connected with moving contact terminal 12, leading-out terminal 6 is installed in the insulation shell 4, one end of leading-out terminal 6 stretches out outside the insulation shell 4, moving conductive rod 27 is connected with an end of connector 7, the other end of connector 7 passes leading-out terminal 6 and is connected with an end of insulator 2, connector 7 can be made one with insulator 2, the other end of insulator 2 is connected with the armature 29 of permanent magnet mechanism 3, connector 7 and leading-out terminal 6 are connected by conducting connecting part, and when quiet contact terminal 11 contacted energising with moving contact terminal 12, conducting connecting part can make connector 7 and leading-out terminal 6 conductings.During making, moving conductive rod 27 also can be made into one with connector 7, and promptly connector 7 is parts of moving conductive rod 27.Connector 7 can also be a dowel screw, and the two ends of connector 7 are threaded with moving conductive rod 27 and insulator 2 respectively.Insulator 2 can be effectively separates the low-voltage circuit insulation with permanent magnet mechanism 3 places of the high-tension circuit at vacuum interrupter 1 and leading-out terminal 6 places, can guarantee staff's handling safety.For easy to install, but the periphery mounting base 10 of permanent magnet mechanism 3, and pedestal 10 is connected with insulation shell 4.The existing all kinds of vacuum switches of existing market, its vacuum interrupter all is unsettled installation, does not have support unit, in use vacuum interrupter is easily loosening, thereby the arcing phenomenon takes place, and influences the useful life of vacuum switch.Loosening for preventing vacuum interrupter 1, mounting support cover 32 in the insulation shell 4, splicing sleeve 32 can be fixed on vacuum interrupter 1 in the insulation shell 4, make vacuum interrupter 1 when folding, all the time be in relative static conditions, make operating state more stable, can prevent effectively that vacuum interrupter 1 from because of the loosening arcing phenomenon that takes place, can prolong the useful life of vacuum switch in moving process.For further fixedly vacuum interrupter 1, also can between splicing sleeve 32 and leading-out terminal 6, install and compress rubber ring 33.
When the closed associated mode permanent magnetism vacuum switch described in the utility model of need, 3 work of energising control permanent magnet mechanism, permanent magnet mechanism 3 makes armature 29 move to insulator 2 directions, armature 29 drives moving conductive rod 27 by insulator 2 and moving contact terminal 12 moves, and with quiet contact terminal 11 closures, at this moment, vacuum switch conducting; When need disconnect associated mode permanent magnetism vacuum switch described in the utility model, 3 work of control permanent magnet mechanism, permanent magnet mechanism 3 oppositely moves armature 29, armature 29 drives moving conductive rod 27 by insulator 2 and moving contact terminal 12 oppositely moves, contact terminal 12 and quiet contact terminal 11 are separated, at this moment, vacuum switch disconnects.
For making things convenient for insulator 2 to be connected with permanent magnet mechanism 3, as shown in Figure 1, insulator 2 is connected with permanent magnet mechanism 3 by regulating sleeve 9, one end of insulator 2 is provided with connecting rod 28, connecting rod 28 is parts of insulator 2, the diameter of connecting rod 28 is less than the diameter of insulator 2, offer chute 15 on the connecting rod 28, offer mounting groove 16 and screw 17 on the regulating sleeve 9, screw 17 communicates with mounting groove 16, offers circular hole 25 on the sidewall of mounting groove 16, installing and locating pin 24 in circular hole 25 and the chute 15, that is, alignment pin 24 penetrates in chute 15 and the circular hole 25, thereby insulator 2 is connected with regulating sleeve 9; The inwall of screw 17 is provided with internal thread, and the outer wall of armature 29 is provided with external screw thread, and armature 29 is threaded with screw 17; Because moving contact terminal 12 and quiet contact terminal 11 are in long-term use, have bigger loss, therefore, after preventing long-time the use, can't adequate closure between quiet contact terminal 11 and the moving contact terminal 12 because of loss, can adopt following scheme: chute 15 is designed to slotted hole, and alignment pin 24 can drive regulating sleeve 9 and move up and down along chute 15, thus the relation of the position between adjustable link 28 and the regulating sleeve 9; In the periphery of connecting rod 28 regulating spring 8 is installed in addition, an end of regulating spring 8 contacts with insulator 2, and the other end of regulating spring 8 contacts with regulating sleeve 9, and regulating spring 8 can provide certain pretightning force to insulator 2.When quiet contact terminal 11 and moving contact terminal 12 all make because of loss that distance increases between the two, regulating spring 8 can promote insulator 2 and move a segment distance to vacuum interrupter 1 direction, tastes the spacing that increases because of loss between quiet contact terminal 11 and the moving contact terminal 12 with benefit.Insulator 2 moves when mending the spacing of tasting between quiet contact terminal 11 and the moving contact terminal 12, and alignment pin 24 moves isometric distance along chute 15.
After guaranteeing quiet contact terminal 11 and moving contact terminal 12 closures, leading-out terminal 6 and static conductive rod 26 conductings, as shown in Figure 1, described conducting connecting part is connected and composed by moving sheet metal 13, quiet sheet metal 14 and spring copper foil 5, moving sheet metal 13 is installed on the connector 7, quiet sheet metal 14 is installed on the leading-out terminal 6, mounting spring copper foil 5 between moving sheet metal 13 and the quiet sheet metal 14, moving sheet metal 13 can move up and down with connector 7; When connector 7 was mobile under the drive of insulator 2, spring copper foil 5 was understood the variation of distance between servo-actuated sheet metals 13 and the quiet sheet metal 14 and is stretched, and can guarantee conducting all the time between moving sheet metal 13 and the quiet sheet metal 14.Described conducting connecting part also can be a lead, can also be that other not only can conduct electricity but also length-adjustable connector.Moving sheet metal 13, quiet sheet metal 14 and spring copper foil 5 can be made into one.
As shown in figures 1 and 3, described permanent magnet mechanism 3 can be by insulating case 19, loam cake 30, lower cover 21, first coil 18, second coil 31 and permanent magnet 20 connect and compose, armature 29 is installed in the insulating case 19, the periphery of armature 29 is installed first coil 18, second coil 31 and permanent magnet 20, armature 29 can be with respect to first coil 18, second coil 31 and permanent magnet 20 move up and down, the two ends of insulating case 19 are installed loam cake 30 and lower cover 21 respectively, one end of armature 29 passes outside the loam cake 30, construction bolt 23 between loam cake 30 and the lower cover 21, bolt 23 is fixing with loam cake 30 and lower cover 21.When quiet contact terminal 11 and moving contact terminal 12 closures, 18 energisings of first coil, armature 29 drives moving conductive rods 27 and moving contact terminal 12 by insulator 2 and moves and contact closure with quiet contact terminal 11, cut off the power supply after 18 energising a period of times of first coil, at this moment, armature 29 keeps original position motionless under the effect of permanent magnet 20, guarantees that quiet contact terminal 11 and moving contact terminal 12 remain closed; When with quiet contact terminal 11 and moving contact terminal 12 separately the time, to 31 energisings of second coil, armature 29 drives moving conductive rod 27 by insulator 2 under the effect of second coil 31 separates with quiet contact terminal 11 with moving contact terminal 12, cut off the power supply after 31 energising a period of times of second coil, armature 29 is transfixion under the effect of permanent magnet 20 still, prevents quiet contact terminal 11 and moving contact terminal 12 closures.Permanent magnet mechanism 3 can be driven other electromagnet or the electromagnetic switch that insulator 2 moves up and down and substituted by existing, the electromagnet or the electromagnetic switch that substitute permanent magnet mechanism 3 should have positioning function, promptly, after electromagnet or electromagnetic switch energising drive insulator 2 action outages, insulator 2 must not self-return, must switch on acting in opposition once more when the insulator 2 by electromagnet or electromagnetic switch, insulator 2 just can move.For convenient permanent magnet 20 is installed, and is convenient to permanent magnet 20 and armature 29 relative motions, neck bush 22 is installed in the insulating case 19, neck bush 22 is between permanent magnet 20 and armature 29.
The utility model not technology contents of detailed description is known technology.
Claims (4)
1. associated mode permanent magnetism vacuum switch, comprise insulation shell (4), vacuum interrupter (1) is installed in the insulation shell (4), the static conductive rod (26) of vacuum interrupter (1) is connected with quiet contact terminal (11), the moving conductive rod (27) of vacuum interrupter (1) is connected with moving contact terminal (12), it is characterized in that: leading-out terminal (6) is installed in the insulation shell (4), one end of leading-out terminal (6) stretches out outside the insulation shell (4), moving conductive rod (27) is connected with an end of connector (7), the other end of connector (7) passes leading-out terminal (6) and is connected with an end of insulator (2), the other end of insulator (2) is connected with the armature (29) of permanent magnet mechanism (3), and connector (7) is connected by conducting connecting part with leading-out terminal (6).
2. associated mode permanent magnetism vacuum switch according to claim 1, it is characterized in that: an end of insulator (2) is provided with connecting rod (28), offer chute (15) on the connecting rod (28), insulator (2) is connected with permanent magnet mechanism (3) by regulating sleeve (9), offer mounting groove (16) and screw (17) on the regulating sleeve (9), screw (17) communicates with mounting groove (16), offer circular hole (25) on the sidewall of mounting groove (16), circular hole (25) and the interior installing and locating pin of chute (15) (24), on the inwall of screw (17) internal thread is set, the outer wall of armature (29) is provided with external screw thread, armature (29) is threaded with screw (17), the periphery of connecting rod (28) is installed regulating spring (8), and an end of regulating spring (8) contacts with insulator (2), and the other end of regulating spring (8) contacts with regulating sleeve (9).
3. associated mode permanent magnetism vacuum switch according to claim 1, it is characterized in that: described conducting connecting part is connected and composed by moving sheet metal (13), quiet sheet metal (14) and spring copper foil (5), connector (7) is gone up moving sheet metal (13) is installed, leading-out terminal (6) is gone up quiet sheet metal (14) is installed, mounting spring copper foil (5) between moving sheet metal (13) and the quiet sheet metal (14).
4. associated mode permanent magnetism vacuum switch according to claim 1, it is characterized in that: permanent magnet mechanism (3) is connected and composed by insulating case (19), loam cake (30), lower cover (21), first coil (18), second coil (31) and permanent magnet (20), armature (29) is installed in the insulating case (19), the periphery of armature (29) is installed first coil (18), second coil (31) and permanent magnet (20), the two ends of insulating case (19) are installed loam cake (30) and lower cover (21) respectively, construction bolt (23) between loam cake (30) and the lower cover (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202263966U CN201478192U (en) | 2009-09-14 | 2009-09-14 | Direct-connected permanent magnet vacuum switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202263966U CN201478192U (en) | 2009-09-14 | 2009-09-14 | Direct-connected permanent magnet vacuum switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201478192U true CN201478192U (en) | 2010-05-19 |
Family
ID=42414452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202263966U Expired - Fee Related CN201478192U (en) | 2009-09-14 | 2009-09-14 | Direct-connected permanent magnet vacuum switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201478192U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901718A (en) * | 2010-07-27 | 2010-12-01 | 国网电力科学研究院 | Direct-acting vacuum circuit breaker with bistable permanent magnet actuators |
| CN104810192A (en) * | 2015-05-08 | 2015-07-29 | 苏州奥然日用品有限公司 | Vacuum circuit breaker closing lock device |
| CN105551876A (en) * | 2016-02-03 | 2016-05-04 | 中国电力科学研究院 | All-insulated outdoor vacuum switch based on dual-cavity vacuum arc extinguishing chamber |
| CN106024502A (en) * | 2016-06-15 | 2016-10-12 | 西电气有限公司 | Permanent-magnet vacuum circuit breaker |
-
2009
- 2009-09-14 CN CN2009202263966U patent/CN201478192U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901718A (en) * | 2010-07-27 | 2010-12-01 | 国网电力科学研究院 | Direct-acting vacuum circuit breaker with bistable permanent magnet actuators |
| CN104810192A (en) * | 2015-05-08 | 2015-07-29 | 苏州奥然日用品有限公司 | Vacuum circuit breaker closing lock device |
| CN105551876A (en) * | 2016-02-03 | 2016-05-04 | 中国电力科学研究院 | All-insulated outdoor vacuum switch based on dual-cavity vacuum arc extinguishing chamber |
| CN106024502A (en) * | 2016-06-15 | 2016-10-12 | 西电气有限公司 | Permanent-magnet vacuum circuit breaker |
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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: 20100519 Termination date: 20130914 |