CN102194603B - Permanent magnetic vacuum unidirectional switch and circuit breaker and contactor combined switch - Google Patents
Permanent magnetic vacuum unidirectional switch and circuit breaker and contactor combined switch Download PDFInfo
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- CN102194603B CN102194603B CN201010122834.1A CN201010122834A CN102194603B CN 102194603 B CN102194603 B CN 102194603B CN 201010122834 A CN201010122834 A CN 201010122834A CN 102194603 B CN102194603 B CN 102194603B
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Abstract
The invention relates to a permanent magnetic vacuum unidirectional switch and a circuit breaker and contactor combined switch. The permanent magnetic vacuum unidirectional switch comprises a shell, a vacuum circuit breaker and a permanent magnetic driving mechanism, wherein the vacuum circuit breaker comprises a static contact and a moving contact; the permanent magnetic driving mechanism is used for driving the moving contact and the static contact to be closed and comprises an insulator; and a reaction spring for driving the moving contact to move is sleeved on the moving contact, the moving contact is movably matched to the insulator, and the permanent magnetic driving mechanism drives the moving contact and the static contact to be closed through the insulator. The moving contact and the insulator are movably matched and not directly connected, and therefore automatic centering can be realized in closing, and the problems of wearing, uneven contact surface and the like can be avoided. The combined switch is used for carrying out combined control on the closing and opening of a plurality of permanent magnetic vacuum unidirectional switches through a controller, so that the combined switch has the functions of a circuit breaker, the functions of a contactor and the functions of both the circuit breaker and the contactor. The power utilization needs on unused equipment are satisfied, and the adaptability is more comprehensive.
Description
Technical field
The present invention relates to a kind of single-way switch that utilizes permanent magnet mechanism to drive, particularly a kind of permanent-magnetic vacuum one-way switch.
In addition, the invention still further relates to the circuit breaker contactor unit switch that this permanent-magnetic vacuum one-way switch is installed.
Background technology
In prior art, colliery mined flame-proof switch starter contactor, feeding switch circuit breaker.When contactor and circuit breaker action, be divided into magnetic force and permanent magnetic drive.It is to drive switch connecting rod or the actuator that wins in succession to form by magnetic driving mechanism.Starter feeding switch is two kinds of switches that purposes is different.
Chinese invention patent Granted publication number is CN201256088Y, name is called " a kind of circuit breaker ", a kind of circuit breaker is disclosed, comprise switching tube, the insulator being connected with switching tube, permanent magnet mechanism, on described insulator, be provided with guide post and tactile heart spring, described tactile heart spring housing is contained on guide post, the part of described guide post and tactile heart spring embed in permanent magnet mechanism, guide post part and tactile heart spring stretch in the cavity of permanent magnet mechanism, guide post links together by pull rod shaft with moving iron core, insulator and permanent magnet mechanism are directly fixed together, its advantage is: simple in structure, cost, easy to operate, deterioration reduces, circuit breaker height reduces, be applicable to multiple applications circuit breaker easy to connect.In the time of protection action, due to action data and clocking error, can cause the switch of this action to be failure to actuate; Should not but move by step switch.This is mainly because starter is to be connected in series to cause with feeding switch in the line.Switch connecting rod actuator is because of down-hole high humidity, and connecting rod actuator gets rusty and causes tripping.Starter feeding switch is because producing and alignment error, cause arc control device contact decentraction, and because insulator and permanent magnet mechanism are directly fixed together, permanent magnet mechanism again with vacuum circuit-breaker in movable contact end be directly fixed together, cause the contact-making surface injustice of vacuum tube, mounting process complexity, when closed, easily causes the situation that vacuum tube wear damage and movable contact end and stationary contact end can not be completely closed to occur.
For unit switch, along with the development of mining level, the modernization level of coal mining is more and more higher, and coal excavation apparatus power demand is increasing.In underground work, colliery is underground power supply used is the vertical complicated problem of a mistake, especially getting working face, along with the high-power coal excavation apparatus of high-yield and high-efficiency is increasing, supply power voltage originally can not be applicable to, rise to 660V by 380V the earliest, the eighties rises to 1.14KV, and earlier 1900s rises to 3.3KV.Although 380V disappears substantially in large ore deposit, 660V, 1.14KV, 3.3KV, 127V illuminating line coexist under coal mine.Such as, coal-winning machine, drag conveyor power are 3.3KV power supply mostly, and emulsification pump, disintegrating machine, elevating conveyor adopt 1.14KV or 660V power supply, and atomizing pump, water pump are mostly 660V power supplies.From down-hole 6KV/10KV central substation to getting working face, the cable of different electric pressures and the transformer of different voltages and other power supply unit are very many.Under existing well, cable fault has an accident and accounts for 45% of whole power supply unit accident, and the occupation of land space of working face is large, and this brings inconvenience to management and safety in production.Floor space is large, cost is high, installation and constructional difficulties output loop few, bad adaptability becomes the problem that switch under current ore deposit exists.
If State Intellectual Property Office is in patent of invention 2009.05.13 Granted publication, that the patent No. is CN200820078282.7, relate to the explosion-proof electrification field of switches under coal mine, specifically a kind of mining power distribution and multipath control integrated switch.This switch comprises the flameproof cabinet of establishing three-phase input, output wiring terminal, in casing, be provided with the telemetry circuit that insulating phase-change switch, vacuum circuit-breaker, transformer, vacuum contactor and control contactor coil obtain dead electricity, on the connecting line between insulating phase-change switch output and contactor main contacts or between insulating phase-change switch input and three-phase input wires terminal, be in series with circuit breaker; Any two-phase of telemetry circuit power end line or three-phase input wires terminal through between transformer access insulating phase-change switch and circuit breaker.Though this scheme has solved in current down-hole distribution and Electric Machine Control and has existed: the problem of the problems such as required switchgear is many, electrical wiring is many, volume is large, area occupied, and installation is constant.In addition, the function of its multichannel output also has not enough aspect alternative, variability and associativity, and adaptability need to improve.
And for example State Intellectual Property Office is in 2008.03.19 Granted publication, the patent No. is the patent of invention of CN200710139284.2, a kind of multi-voltage and multi-loop explosion-proof device for mine is disclosed, belong to colliery emergency electric supply unit technical field, technical characteristics is ground high voltage source A, B, the high voltage distribution installation of C access Underground Substation, after isolating switch GK, meet vacuum circuit-breaker GD, the output of vacuum circuit-breaker GD is connected through the input of the first adpting flange and dry-type transformer, the voltage output end of dry-type transformer is divided into two groups, one group is high-pressure side Am, Bm, Cm, another group is low-pressure side a, b, c, two groups of voltage output ends are isolated the SW1 of reversing switch respectively with in low-pressure side unit switch through the second adpting flange, SW2 connects, reversing switch SW1, the output of SW2 connects load after connecting vacuum contactor K1～10.There are equally the problems referred to above in this scheme.
Summary of the invention
In order to solve the problem in above-mentioned prior art scheme, the invention provides a kind of permanent-magnetic vacuum one-way switch, the movable contact end of insulator and vacuum tube is directly designed to movable fit structure, can be because of the contact-making surface injustice of vacuum tube in the time of closure, there is wear damage problem, and movable contact end and the stationary contact end situation of closure completely.
In addition, the present invention also provides a kind of circuit breaker contactor unit switch that this permanent-magnetic vacuum one-way switch is installed.Not only volume little, occupy little space, easy to install, and set circuit breaker function, contactor function, realize circuit breaker, contactor output function, combination circuit breaker, contactless contactor function.Be suitable for distinct device user demand under ore deposit.Fail safe is corresponding being significantly improved also.
The main technical schemes that a kind of permanent-magnetic vacuum one-way switch provided by the invention adopts is: a kind of permanent-magnetic vacuum one-way switch, comprise shell, be arranged on the vacuum tube in described shell, permanent mechanism driving mechanism, described vacuum tube comprises stationary contact end, movable contact end, described permanent mechanism driving mechanism drives described movable contact end and described stationary contact end closure, described permanent mechanism driving mechanism comprises insulator, the reaction spring that described movable contact end cover has driving self to move, described movable contact end coordinates with described insulator is movable, described movable contact end moves relative to described stationary contact end, described permanent mechanism driving mechanism drives described movable contact end and described stationary contact end closure by described insulator.
A kind of permanent-magnetic vacuum one-way switch provided by the invention also adopts following attached technical scheme: described insulator is provided with groove, and the front end of described movable contact end stretches into described groove;
Described vacuum tube also comprises flexible link, and described flexible link comprises base plate, by the soft wiring of described movable contact end place in circuit, and described base plate is threaded with described movable contact end or clamping or peg graft;
Described insulator is provided with groove, described vacuum tube also comprises flexible link, described flexible link comprises base plate, by soft wiring and the fastening bolt of described movable contact end place in circuit, one end of described fastening bolt through described base plate be connected with described movable contact end, the other end stretches into described groove;
One end of described reaction spring leans on the sleeve pipe of vacuum tube, the other end leans the side at described base plate;
Described insulator also comprises cavity and connecting rod, and described cavity cover are stretched in one end of described connecting rod excess of stroke spring, one end of described excess of stroke spring to rely on described connecting rod, the other end to rely on the inwall of described cavity;
Described permanent magnet mechanism comprises moving iron core, static iron core, closing coil and permanent magnet, and the other end of described connecting rod is connected with described moving iron core;
The other end of described connecting rod is connected with described moving iron core by a permanent magnetism fastening bolt.
The main technical schemes that circuit breaker contactor unit switch provided by the invention adopts is: unit switch comprises insulation box, in described insulation box, be provided with 6 permanent-magnetic vacuum one-way switchs, and the controller of controlling described permanent-magnetic vacuum one-way switch closure or disconnecting, described permanent-magnetic vacuum one-way switch comprises shell, be arranged on the vacuum tube in described shell, permanent mechanism driving mechanism, described vacuum tube comprises stationary contact end, movable contact end, described permanent mechanism driving mechanism drives described movable contact end and described stationary contact end closure, described permanent mechanism driving mechanism comprises insulator, described movable contact end cover has its reaction spring moving of driving, described movable contact end coordinates with described insulator is movable, described permanent mechanism driving mechanism drives described movable contact end and described stationary contact end closure by described insulator, 6 described permanent-magnetic vacuum one-way switchs are divided into the first killer switch, the second killer switch, the 3rd killer switch and the first contactless contactor, the second contactless contactor, the 3rd contactless contactor according to the grade of the closed parameter of the disjunction of described vacuum circuit-breaker and contactor and the closed parameter of disjunction, 3 described killer switches are connected in A, B, the input and output of C three-phase with 3 contactless contactors, and form circuit breaker function, contactor function,
Described the first killer switch, the second killer switch and the 3rd killer switch access respectively in described A, B, the input and output of C three-phase, and form circuit breaker group;
Described the first contactless contactor, the second contactless contactor and the 3rd contactless contactor access respectively in described A, B, the input and output of C three-phase, and form contactor group;
Described contactor group is connected with described circuit breaker group, closed or the disconnection of the contactor group described in described controller control in A, B, the input and output of C three-phase and circuit breaker group, to realize circuit breaker function or contactor function or circuit breaker and the contactor function of unit switch.
The beneficial effect that adopts a kind of permanent-magnetic vacuum one-way switch provided by the invention to bring is: will be designed between the movable contact end of vacuum tube and the insulator movable structure coordinating of (1) the present invention, between connecting rod is not set, not directly connection.In when action, permanent mechanism driving mechanism drives insulator to move, and insulator can lean movable contact end together moves it thereupon, so with stationary contact end closure.Avoid connecting rod to connect due to the connecting rod tripping causing of getting rusty, even if also can guarantee the fail safe using under the environment of down-hole humidity.And the position that the movable structure coordinating makes insulator can not disturb movable contact end, makes between movable contact end and stationary contact end automatic alignment concentric, when closed contact comprehensively, abundant.(2) according to the invention provides single-phase switch compared with prior art, efficiently solve the problem of the arc control device decentraction producing due to alignment error, make single-phase switch more secure and reliable to use.
The beneficial effect that adopts the circuit breaker contactor unit switch of installation permanent-magnetic vacuum one-way switch provided by the invention to bring is: 6 described permanent-magnetic vacuum one-way switchs of (1) are divided into 3 killer switches and 3 contactless contactors according to the closed parameter of the disjunction of described vacuum circuit-breaker and contactor, the closed parameter grade of disjunction, described 3 killer switches and 3 contactless contactors form in A, B, the input and output of C three-phase, and form circuit breaker group and contactor group.Controller is by combining control to the closed and disconnected of circuit breaker group, contactor group.Make unit switch set circuit breaker and contactor function, realize circuit breaker, contactor output, combination and performance circuit breaker, contactor function.Be suitable for distinct device user demand under ore deposit.The first contactless contactor, the second contactless contactor and the 3rd contactless contactor seal in respectively the first insurance parts RD1, the second insurance parts RD2, the 3rd insurance parts RD3 and realize contactor function, the first circuit breaker, the second circuit breaker, the 3rd circuit breaker are also realized circuit breaker function, and fail safe is also significantly improved.Meet equipment applicability, reliability under ore deposit.Adaptability is more comprehensive, extensive.(2) 6 permanent-magnetic vacuum one-way switchs are installed in insulation box, because the volume of each permanent-magnetic vacuum one-way switch is little, make the volume of whole unit switch little, occupy little space, install and use also very convenient.(3) around each permanent-magnetic vacuum one-way switch, approach switch is set, or the state that disconnect closed for detection of permanent-magnetic vacuum one-way switch and by signal feedback to controller, the state providing for the operation of controller shows.Make the operation of controller more accurate, it is more accurate that the function of unit switch is switched.
Accompanying drawing explanation
Fig. 1 is the cutaway view of permanent-magnetic vacuum one-way switch of the present invention, and internal part composition and annexation are shown;
Fig. 2 is that the parts of permanent-magnetic vacuum one-way switch of the present invention split schematic diagram;
Fig. 3 is the overall structure figure that the present invention installs the circuit breaker contactor unit switch of permanent-magnetic vacuum one-way switch;
Fig. 4 is that the circuit breaker contactor unit switch that the present invention installs permanent-magnetic vacuum one-way switch is opened the overall structure figure controlling after lid, and emphasis illustrates the positional structure that approach switch coordinates with each permanent-magnetic vacuum one-way switch;
Fig. 5 is that the parts of the present invention's circuit breaker contactor unit switch that permanent-magnetic vacuum one-way switch is installed split schematic diagram;
Fig. 6 is that the parts of contactor group in unit switch of the present invention split schematic diagram;
Fig. 7 is that the parts of circuit breaker group in unit switch of the present invention split schematic diagram;
Fig. 8 is the electric control theory figure that the present invention realizes circuit breaker contactor unit switch;
Fig. 9 is the electric control theory figure that the present invention realizes circuit breaker unit switch;
Figure 10 is the electric control theory figure that contactor group switch of the present invention seals in respectively unit switch after the first insurance parts RD1, the second insurance parts RD2, the 3rd insurance parts RD3 and realize contactor function.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
As Fig. 1, shown in Fig. 2, for a kind of permanent-magnetic vacuum one-way switch provided by the invention, comprise shell 1, be arranged on the vacuum tube 2 in described shell 1, permanent mechanism driving mechanism, described vacuum tube 2 comprises stationary contact end 21, described permanent mechanism driving mechanism drives described movable contact end 22 and described stationary contact end 21 closures, it is characterized in that: described permanent mechanism driving mechanism comprises insulator 4, the reaction spring 3 that described movable contact end 22 covers have driving self to move, described movable contact end 22 and described movable cooperation of insulator 4, described movable contact end 22 moves relative to described stationary contact end 21, described permanent mechanism driving mechanism drives described movable contact end 22 and described stationary contact end 21 closures by described insulator 4.Movable contact end 22 described here and described insulator 4 be movable to be coordinated and refers between movable contact end 22 and described insulator 4 and do not adopt connecting rod of the prior art to be directly connected, but activity, there is no each other annexation.When action, together move by the rear drive movable contact of movable contact end 22 end 22 by the mobile income of insulator 4.The benefit of this structure is to avoid in the vacuum tube that brings of skew the problems such as movable contact end 22 and stationary contact end 21 contact-making surface injustice, wear damage, movable contact end 22 can automatic alignment with one heart and stationary contact end 21 closures.
In further preferred version provided by the invention, described insulator 4 is provided with groove 41, and the front end of described movable contact end 22 stretches into described groove 41.Described vacuum tube 2 also comprises flexible link, and described flexible link comprises base plate 23, by the soft wiring 24 of described movable contact end 22 places in circuit, and described base plate 23 is threaded with described movable contact end 22 or clamping or peg graft.
Described insulator 4 also comprises cavity 42 and connecting rod 43, and described cavity 42 cover are stretched in one end of described connecting rod 43 excess of stroke spring 44, one end of described excess of stroke spring 44 to rely on described connecting rod 43, the other end to rely on the inwall of described cavity 42.Described permanent magnet mechanism comprises moving iron core 51, static iron core 52, closing coil 53 and permanent magnet 54, and the other end of described connecting rod 43 is connected with described moving iron core 51.
In further preferred version provided by the invention, described insulator 4 is provided with groove 41, described vacuum tube 2 also comprises flexible link, described flexible link comprises base plate 23, by the soft wiring 24 of described movable contact end 22 places in circuit and fastening bolt 25, one end of described fastening bolt 25 through described base plate 23 be connected with described movable contact end 22, the other end stretches into described groove 41.
The side that one end of described reaction spring 3 leans on the sleeve pipe of vacuum tube 2, other end item leans against described base plate 23.Described insulator 4 also comprises cavity 42 and connecting rod 43, and described cavity 42 cover are stretched in one end of described connecting rod 43 excess of stroke spring 44, one end of described excess of stroke spring 44 to rely on described connecting rod 43, the other end to rely on the inwall of described cavity 42.Described permanent magnet mechanism comprises moving iron core 51, static iron core 52, closing coil 53 and permanent magnet 54, and the other end of described connecting rod 43 is connected with described moving iron core 51.
In further preferred version provided by the invention, the other end of described connecting rod 43 is connected with described moving iron core 51 by a permanent magnetism fastening bolt 55.
The specific embodiment providing below in conjunction with accompanying drawing 1, Fig. 2 is described such scheme and is supported.
As shown in Figure 1 and Figure 2, permanent-magnetic vacuum one-way switch comprises shell 1, vacuum tube 2 is installed in shell 1, permanent mechanism driving mechanism.Vacuum tube 2 is existing conventional products, and its inside is provided with in stationary contact end 21 and movable contact end 22 difference place in circuit, carrys out the break-make of control circuit by movable contact end 22 and the closed or disconnection of stationary contact end 21, and one end of vacuum tube is connected with shell 1 by fixed card 11.Control movable contact end 22 and the closed or disconnection of stationary contact end 21 and be by permanent mechanism driving mechanism and movable contact end 22 coordinate realize.Specifically as shown in Figure 1, the front end of movable contact end 22 stretches out vacuum tube, and cover has reaction spring 3, soft wiring 24 places in circuit that movable contact end 22 passes through in flexible link.Fastening bolt 25 in flexible link is threaded fixing through base plate 23 is rear with the front end of movable contact end 22.Like this, base plate 23 is just fixed on the front end of movable contact end 23, and the two ends of reaction spring 3 lean against on the outer tube and base plate 23 of vacuum tube respectively.And stretch in the groove 41 of insulator 4 with the be threaded front end (being other one end of relative movable contact end 22) of fixing fastening bolt 25 of movable contact end 22, the movement occurring in the time that automatic alignment is concentric in order to meet movable contact end 22, the size of groove 41 is larger than the size of fastening bolt 25, and fastening bolt 25 can be relatively moved in groove 41.
The other end of insulator 4 has cavity 42 and cover has excess of stroke spring 44, one end of connecting rod 43 is stretched in cavity 42, and can in cavity 42, slide, the connecting rod 43 stretching in cavity 42 is provided with baffle plate 431, one end item of excess of stroke spring 44 leans against on baffle plate 431, and the other end leans on the inwall of cavity 42.Other one end of connecting rod 43 is stretched in permanent mechanism driving mechanism and is fixedly connected with moving unshakable in one's determination 51 through static iron core 52 and by a permanent magnetism fastening bolt 55.Static iron core 51 both sides are closing coil 53, and the front end of closing coil 53 is permanent magnet 54 and moving iron core 51.When closing coil 53 passes into forward current, moving iron core 51 and static iron core 52 adhesives, in the process moving in adhesive, moving iron core 51 drivening rods 43 move, connecting rod 43 moves the excess of stroke spring 44 that can first compress reaction spring 3 and be arranged in cavity 42, after excess of stroke spring 44 is compressed, connecting rod 43 leans whole insulator 4 and moves, the fastening bolt 25 that is arranged in the groove 41 of insulator 4 is insulated after son 4 leans and together moves thereupon, fastening bolt 25 is because movable contact end 22 is fixedly connected with, will drive accordingly movable contact end 22 to move, final and stationary contact end 21 closures.Moving iron core 51 drivening rods 43 move, and connecting rod moves and continues to compress the excess of stroke spring 44 that is arranged in cavity, and excess of stroke spring 44 is compressed to vacuum tube movable contact end, stationary contact end pressure.In this process, after contacting with fastening bolt 25 and lean, the groove 41 of insulator 4 driving it together to move, there is no the direct connection of connecting rod, it is concentric that fastening bolt 25 can move automatic alignment, also the automatic alignment of just having realized accordingly movable contact end 22 is concentric, movable contact end 22 is complete, smooth with the closure of stationary contact end 21, not wearing and tearing.Extend the useful life of vacuum tube.After closure, utilize permanent magnetic to realize snap close.
And in throwing off, when coil 53 passes into reverse current, reaction spring 3 and the common elastic force effect of excess of stroke spring 44, flick movable contact end 22 rapidly with stationary contact end 21 and separate.Reaction spring 2 all reaches ideal effect while movable contact end 22 and stationary contact end 21 being disconnected with being used in conjunction with of excess of stroke spring 44.
Except above-mentioned permanent-magnetic vacuum one-way switch, as shown in Figures 3 to 10, the present invention also provides the circuit breaker contactor unit switch that this permanent-magnetic vacuum one-way switch is installed, comprise insulation box 6, in described insulation box 6, be provided with the permanent-magnetic vacuum one-way switch described in 6 and control the controller 7 that described permanent-magnetic vacuum one-way switch is closed or disconnect.6 described permanent-magnetic vacuum one-way switchs are divided into the first killer switch YKD1, the second killer switch YKD2, the 3rd killer switch YKD3 and the first contactless contactor YKJ1, the second contactless contactor YKJ2, the 3rd contactless contactor YKJ3 according to the grade of the closed parameter of the disjunction of described vacuum circuit-breaker, contactor and the closed parameter of disjunction; 3 described killer switches are connected in A, B, the input and output of C three-phase and form circuit breaker function, contactor function with 3 contactless contactors.Described the first killer switch YKD1, the second killer switch YKD2 and the 3rd killer switch YKD3 access respectively in described A, B, the input and output of C three-phase, and form circuit breaker group.
Described the first contactless contactor YKJ1, the second contactless contactor YKJ2 and the 3rd contactless contactor YKJ3 access respectively in described A, B, the input and output of C three-phase, and form contactor group;
Described the first killer switch YKD1, the second killer switch YKD2, the 3rd killer switch YKD3 accesses respectively in described A, B, the input and output of C three-phase, and forms circuit breaker group;
Described contactor group is connected with described circuit breaker group, described the first killer switch, the second killer switch, the 3rd killer switch and the first contactless contactor, the second contactless contactor, the 3rd contactless contactor series connection accesses respectively in A, B, the input and output of C three-phase, and described controller 7 is controlled the closed of contactor group in described A, B, the input and output of C three-phase and circuit breaker group or disconnected, to realize circuit breaker function or contactor function or circuit breaker and the contactor function of unit switch.
Its internal part composition of above-mentioned killer switch and contactless contactor, annexation, structure are all identical with permanent-magnetic vacuum one-way switch provided by the invention.Difference is the model difference that inner vacuum circuit-breaker is selected, causes it in disjunction number of times, breaking current grade, to produce different.Select the disjunction number of times of vacuum circuit-breaker more than 10,000 times, the permanent-magnetic vacuum one-way switch of breaking current more than 30KA be killer switch, meets circuit breaker disjunction number of times few, the requirement of disjunction main circuit, large electric current.Select the disjunction number of times of vacuum circuit-breaker more than 300,000 times, breaking current is contactless contactor at the permanent-magnetic vacuum one-way switch of 12KA, meets the requirement of the frequent disjunction of contactor, the little electric current of disjunction.
The described circuit breaker group wherein being formed by 3 killer switches realizes circuit breaker function; The contactor group being formed by 3 contactless contactors realizes contactor function.Described controller 7 is controlled the closed of described circuit breaker group and contactor group or is disconnected, to realize circuit breaker function, contactor function, circuit breaker and the contactor function of unit switch.
As shown in Figures 3 to 5, insulation box 6 comprises insulated case 61 and insulation case lid 62, and 6 permanent-magnetic vacuum one-way switchs are installed in insulated case 61,3 of the every rows of two rows.After installing, cover insulation case lid 62.Insulation has the through hole 621 corresponding with permanent magnetism fastening bolt 55 in each permanent-magnetic vacuum one-way switch on case lid 62, and in the both sides up and down of each through hole 621, an approach switch 8 is respectively set.When permanent-magnetic vacuum one-way switch closure or disconnection, permanent magnetism fastening bolt 55 can be mobile, and 8 of approach switchs detect the movement of permanent magnetism fastening bolts 55 and also signal are defeated by controller, grasp closure, the disconnection of each permanent-magnetic vacuum one-way switch.After insulation case lid 62 is built, the control box 9 that controller 7 is installed is covered on insulation box 6, complete whole installation.
As shown in Figure 6, in unit switch, 3 permanent-magnetic vacuum one-way switch composition contactor groups in the input and output of A/B/C three-phase, each permanent-magnetic vacuum one-way switch is connected in series respectively the first insurance parts RD1, the second insurance parts RD2, the 3rd insurance parts RD3.
As shown in Figure 7, in unit switch, 3 permanent-magnetic vacuum one-way switch composition circuit breaker groups in the input and output of A/B/C three-phase.
As shown in Figure 8, circuit breaker of the present invention, contactor unit switch form 3 circuitry phase input and output by 6 permanent-magnetic vacuum one-way switchs.A phase, B phase C are in series by killer switch and contactless contactor.Killer switch in A, B, C three-phase and contactless contactor form circuit breaker group and contactor group.In whole input and output, the closed or disconnection of controlling 2 groups by controller 7 combinations realizes different functions.
As shown in Figure 8, circuit breaker group and the series connection of contactor group realize circuit breaker and contactor function.As shown in Figure 9, develop from Fig. 8, contactor group closure is considered as wire, and closed disconnection of circuit breaker group realized circuit breaker function.As shown in figure 10, developed by Fig. 8, circuit breaker group closure is considered as wire, and the each contactor in contactor group is connected in series respectively the first insurance parts RD1, the second insurance parts RD2, the 3rd insurance parts RD3, makes closed disconnection of contactor group realize contactor function.
By controller 7, the closed and disconnected of circuit breaker group and contactor group is combined to control, make unit switch there is circuit breaker function, contactor function, circuit breaker and contactor function.Be suitable for distinct device user demand under ore deposit.Fail safe is also significantly improved.Meet equipment applicability, reliability under ore deposit.Adaptability is more comprehensive, extensive.6 permanent-magnetic vacuum one-way switchs are installed in insulation box 6, because the volume of each permanent-magnetic vacuum one-way switch is little, make the volume of whole unit switch little, occupy little space, install and use also very convenient.Approach switch 8 is set around each permanent-magnetic vacuum one-way switch, or the state that disconnect closed for detection of permanent-magnetic vacuum one-way switch and by signal feedback to controller 7, show for the operation of controller 7 provides state.Make the operation of controller 7 more accurate, it is more accurate that the function of unit switch is switched.
Multifunctional combination switching, permanent-magnetic vacuum one-way switch adopts phase pillar, circuit breaker, contactor close a floodgate asynchronous three phase electric machine power factor while changing in 0.5～0.9 scope, in the scope of current over-zero ± 15 °, close a floodgate, solve motor in the time of starting, motor over-voltage phenomenon, combined floodgate moment switching current reduces, and increases the useful life of vacuum circuit-breaker.
Claims (8)
1. a permanent-magnetic vacuum one-way switch, comprise shell (1), be arranged on the vacuum tube (2) in described shell (1), permanent mechanism driving mechanism, described vacuum tube (2) comprises stationary contact end (21), movable contact end (22), described permanent mechanism driving mechanism drives described movable contact end (22) and described stationary contact end (21) closure, it is characterized in that: described permanent mechanism driving mechanism comprises insulator (4), the reaction spring (3) that described movable contact end (22) cover has driving self to move, described movable contact end (22) coordinates with described insulator (4) is movable, this activity cooperation refers between described movable contact end (22) and described insulator (4) and does not adopt connecting rod to be directly connected, but movable, there is no each other annexation, when action, after leaning described movable contact end (22) by the movement of described insulator (4), drive described movable contact end (22) together to move, described movable contact end (22) moves relative to described stationary contact end (21), described permanent mechanism driving mechanism drives described movable contact end (22) and described stationary contact end (21) closure by described insulator (4), described insulator (4) is provided with groove (41), the front end of described movable contact end (22) stretches into described groove (41), described vacuum tube (2) also comprises flexible link, described flexible link comprises base plate (23), by the soft wiring (24) of described movable contact end (22) place in circuit and fastening bolt (25), one end of described fastening bolt (25) is connected with described movable contact end (22) through described base plate (23), the other end stretches into described groove (41).
2. a kind of permanent-magnetic vacuum one-way switch according to claim 1, it is characterized in that: described vacuum tube (2) also comprises flexible link, described flexible link comprises base plate (23), by the soft wiring (24) of described movable contact end (22) place in circuit, described base plate (23) is threaded with described movable contact end (22) or clamping or peg graft.
3. a kind of permanent-magnetic vacuum one-way switch according to claim 1, is characterized in that: one end of described reaction spring (3) leans on the sleeve pipe of vacuum tube (2), the other end leans the side at described base plate (23).
4. according to a kind of permanent-magnetic vacuum one-way switch described in claim 2 or 3, it is characterized in that: described insulator (4) also comprises cavity (42) and connecting rod (43), described cavity (42) cover are stretched in one end of described connecting rod (43) excess of stroke spring (44), one end of described excess of stroke spring (44) to rely on described connecting rod (43), the other end to rely on the inwall of described cavity (42).
5. a kind of permanent-magnetic vacuum one-way switch according to claim 4, it is characterized in that: described permanent magnet mechanism comprises moving iron core (51), static iron core (52), closing coil (53) and permanent magnet (54), the other end of described connecting rod (43) is connected with described moving iron core (51).
6. the circuit breaker contactor unit switch that the arbitrary described a kind of permanent-magnetic vacuum one-way switch of the claims 1 to 3,5 is installed, comprises insulation box (6), it is characterized in that:
In described insulation box (6), be provided with the permanent-magnetic vacuum one-way switch described in 6 and control the controller (7) that described permanent-magnetic vacuum one-way switch is closed or disconnect; 6 described permanent-magnetic vacuum one-way switchs are divided into the first killer switch (YKD1), the second killer switch (YKD2), the 3rd killer switch (YKD3) and the first contactless contactor (YKJ1), the second contactless contactor (YKJ2), the 3rd contactless contactor (YKJ3) according to the grade of the closed parameter of the disjunction of described vacuum circuit-breaker and contactor and the closed parameter of disjunction; 3 described killer switches are connected in A, B, the input and output of C three-phase and form circuit breaker function, contactor function with 3 contactless contactors;
Described the first killer switch (YKD1), the second killer switch (YKD2) and the 3rd killer switch (YKD3) access respectively in described A, B, C three-phase, and form circuit breaker group;
Described the first contactless contactor (YKJ1), the second contactless contactor (YKJ2) and the 3rd contactless contactor (YKJ3) access respectively in described A, B, C three-phase, and form contactor group;
Described contactor group is connected with described circuit breaker group, described controller (7) is controlled the closed of contactor group in described A, B, the input and output of C three-phase and circuit breaker group or is disconnected, to realize circuit breaker function or contactor function or circuit breaker and the contactor function of unit switch.
7. circuit breaker contactor unit switch according to claim 6, it is characterized in that: be also provided with the approach switch (6) that detects described permanent-magnetic vacuum one-way switch closure or off-state, the front end of described permanent-magnetic vacuum one-way switch leaves or enter effective surveyed area of described approach switch (8) along with the closed or disconnection of vacuum circuit-breaker.
8. circuit breaker contactor unit switch according to claim 6, is characterized in that: described the first contactless contactor (YKJ1), the second contactless contactor (YKJ2) and the 3rd contactless contactor (YKJ3) are connected in series respectively the first insurance parts RD1, the second insurance parts RD2, the 3rd insurance parts RD3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122834.1A CN102194603B (en) | 2010-03-01 | 2010-03-01 | Permanent magnetic vacuum unidirectional switch and circuit breaker and contactor combined switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122834.1A CN102194603B (en) | 2010-03-01 | 2010-03-01 | Permanent magnetic vacuum unidirectional switch and circuit breaker and contactor combined switch |
Publications (2)
| Publication Number | Publication Date |
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| CN102194603A CN102194603A (en) | 2011-09-21 |
| CN102194603B true CN102194603B (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010122834.1A Expired - Fee Related CN102194603B (en) | 2010-03-01 | 2010-03-01 | Permanent magnetic vacuum unidirectional switch and circuit breaker and contactor combined switch |
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| CN2724187Y (en) * | 2004-09-06 | 2005-09-07 | 苏本宽 | Vacuum contactor of permanent magnetic mechanism |
| CN2867576Y (en) * | 2006-03-15 | 2007-02-07 | 杨永平 | Permanent magnet breaker |
| CN2929944Y (en) * | 2006-07-30 | 2007-08-01 | 郭建厂 | Sealed outdoor high voltage permanent mechanism vacuum breaker |
| CN101188166A (en) * | 2007-12-19 | 2008-05-28 | 杨永平 | A permanent magnetic mechanism |
| CN201185152Y (en) * | 2008-03-24 | 2009-01-21 | 陈成明 | Vacuum circuit-breaker |
| CN201311872Y (en) * | 2008-11-26 | 2009-09-16 | 常州万德福兰陵电器有限公司 | Vacuum circuit breaker |
| CN201332048Y (en) * | 2008-12-31 | 2009-10-21 | 宁波鑫鑫鑫寅电气有限公司 | Air-insulated vacuum load switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002124163A (en) * | 2000-10-16 | 2002-04-26 | Mitsubishi Electric Corp | Switchgear |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2724187Y (en) * | 2004-09-06 | 2005-09-07 | 苏本宽 | Vacuum contactor of permanent magnetic mechanism |
| CN2867576Y (en) * | 2006-03-15 | 2007-02-07 | 杨永平 | Permanent magnet breaker |
| CN2929944Y (en) * | 2006-07-30 | 2007-08-01 | 郭建厂 | Sealed outdoor high voltage permanent mechanism vacuum breaker |
| CN101188166A (en) * | 2007-12-19 | 2008-05-28 | 杨永平 | A permanent magnetic mechanism |
| CN201185152Y (en) * | 2008-03-24 | 2009-01-21 | 陈成明 | Vacuum circuit-breaker |
| CN201311872Y (en) * | 2008-11-26 | 2009-09-16 | 常州万德福兰陵电器有限公司 | Vacuum circuit breaker |
| CN201332048Y (en) * | 2008-12-31 | 2009-10-21 | 宁波鑫鑫鑫寅电气有限公司 | Air-insulated vacuum load switch |
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| CN102194603A (en) | 2011-09-21 |
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