CN101651059B - Electric vacuum isolated phase change switch - Google Patents
Electric vacuum isolated phase change switch Download PDFInfo
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- CN101651059B CN101651059B CN2009101529562A CN200910152956A CN101651059B CN 101651059 B CN101651059 B CN 101651059B CN 2009101529562 A CN2009101529562 A CN 2009101529562A CN 200910152956 A CN200910152956 A CN 200910152956A CN 101651059 B CN101651059 B CN 101651059B
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- change switch
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Abstract
The invention relates to an electric vacuum isolated phase change switch, comprising two groups of switch units arranged on a frame and wire inlet/outlet rows thereof. Each group of switch units comprises three vacuum tube sets, and each group of switch units achieve the on and off of static contacts and movable contacts inside the vacuum tube by an electromagnetic operating device so as to achieve the on and off conversion of the circuit and the conversion of phase sequences. The invention has the advantages that the isolating is achieved in an electric manner; the whole switch structure design is compact and rational; and the invention solves the problem that the vacuum isolated phase change switch in the prior art realizes isolating by a manually-operated mechanical structure, which has complicated mechanical structure and low isolating capability.
Description
Technical field
The present invention relates to a kind of switching device, relate in particular to a kind of electric vacuum isolated phase change switch.
Background technology
Existing mining insulating phase-change switch mainly contains two kinds of forms: a kind of is the insulating phase-change switch of air type; Another kind is the insulating phase-change switch of vacuum type.Wherein: the insulating phase-change switch breaking capacity of air type is relatively poor, generally can only 3 times of rated current of disjunction, and produce very big electric arc during segmentation, and fail safe is relatively poor, and contact is prone to scaling loss, and the life-span is shorter; And the contact of the insulating phase-change switch of vacuum type is work under vacuum state, and breaking current is big, the outside no electric arc of vacuum tube; The vacuum tube internal arc is little, and contact is difficult for scaling loss, and the life-span is longer; The insulating phase-change switch of vacuum type is because of above-mentioned advantage; On market, progressively replace the application of the insulating phase-change switch of air type, but domestic existing vacuum insulating phase-change switch generally is to take the hand operating mechanism structure to realize the purpose of disjunction, its complicated in mechanical structure; Breaking capacity only can reach 6 times of rated current, as: Chinese patent: a kind of vacuum isolating change-over switch (ZL01275975.9).Along with the raising of mining equipment rated voltage and the people raising to the mining equipment security requirement, existing vacuum insulating phase-change switch can not satisfy the demands.
Summary of the invention
The present invention has overcome the weak point of prior art, and a kind of electric vacuum isolated phase change switch is provided, and not only adopts electronic mode to realize disjunction; Whole construction of switch is compact to design; Rationally, solving vacuum insulating phase-change switch of the prior art takes the hand operating mechanism structure to realize the purpose of disjunction, complicated in mechanical structure; Breaking capacity is low, the problem that fail safe is relatively poor.
The present invention achieves the above object through following technical scheme: a kind of electric vacuum isolated phase change switch, comprise that one is installed in two groups of switch elements on the framework and passes in and out line row, and each group switch element comprises three vacuum tube groups; Each group switch element is through the break-make of its electromagnetic operating device with dynamic/static contact in the realization vacuum tube, thus the conversion of realization connecting and disconnecting of the circuit and phase sequence, and described electromagnetic operating device comprises electromagnet; The push pedal connection handle; Push pedal, moving contact pull bar, back-moving spring II; Adhesive push pedal connection handle after wherein electromagnet is switched on, the push pedal connection handle is fixedly connected with push pedal, and the end of push pedal is fixedly connected with moving contact pull bar one end; The rotation of push pedal drives the moving contact pull bar and realizes that the connection of circuit is disconnected; Back-moving spring II one end is fixed on the electromagnet framework, and the other end is fixedly connected with the push pedal connection handle, and back-moving spring II is used for the disjunction dynamic/static contact; Also include positive combined floodgate auxiliary contact, the phase closing auxiliary contact; Drive auxiliary contact pressure plates I or the rotation of auxiliary contact pressure plates II during the push pedal action, positive combined floodgate auxiliary contact or phase closing auxiliary contact are connected or disjunction.
As preferably; Described vacuum insulating phase-change switch also comprises one group of manual isolating switch that is installed on the framework; Described manual isolating switch comprises a manual isolated operation device and three groups of isolation dynamic/static contact groups and passes in and out line row, is used for when the adhesion of vacuum tube inside contact or other unusual time-division deenergizings.
As preferably, manually the isolated operation device comprises sector shaft, the right angle tooth bar, and pushing block, shifting block, the shifting block axle, linkage is isolated the moving contact square shaft, reset tension spring I; Wherein: sector shaft and the engagement of right angle tooth bar, pushing block are fixed on tooth bar upper end, right angle, and shifting block agrees with in pushing block; Shifting block axle on the shifting block is fixed on the framework; The lower end of shifting block is fixedly connected with linkage, isolates the moving contact square shaft and is fixed on the end of linkage, isolates the moving contact square shaft other end isolation moving contact of ining succession mutually; Isolate the moving contact square shaft and be used to realize that three groups are isolated dynamic/static contact disjunction or closure, reset tension spring I is fixedly connected with linkage.
As preferably, described linkage comprises rocking bar, connecting rod, and plate, wherein: rocking bar and connecting rod flexibly connect, and connecting rod is fixedly connected with the lower end of shifting block, connecting rod and plate flexible connection, isolation moving contact square shaft is fixed on the plate.
As preferably, manually isolating switch also comprises the isolation auxiliary contact, drives the auxiliary contact push pedal during pushing block action and moves up and down, and auxiliary contact are connected or disjunction.
As preferably, manually the dynamic/static contact of isolating switch is provided with the extinguishing arc cover, is provided with the grid sheet in the extinguishing arc cover.
Beneficial effect of the present invention: adopt electronic mode to realize disjunction; Whole construction of switch is compact to design, rationally, solves vacuum insulating phase-change switch of the prior art and takes the hand operating mechanism structure to realize the purpose of disjunction; Complicated in mechanical structure, the problem that breaking capacity is low.This vacuum insulating phase-change switch processing technology of the present invention is simple, volume is little, simple in structure, rated voltage is that 3300 volts, rated current are 630 peaces, electronic disjunction and switching-over, simple to operate, stable performance, reliability is high, maintenance is few, it is convenient to change, control voltage can be under+115%～75% condition operate as normal.
Description of drawings
Fig. 1 is the perspective view that has the electric vacuum isolated phase change switch of manual isolating switch;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is the structural representation of the manual isolating switch manual isolated operation device when closed;
Fig. 6 is that the B of Fig. 5 is to partial view;
Fig. 7 is the structural representation of the manual isolating switch manual isolated operation device when breaking off;
Fig. 8 is the structural representation of the manual isolating switch dynamic/static contact when closed;
Fig. 9 is the structural representation of the manual isolating switch dynamic/static contact when breaking off;
Figure 10 is positive combined floodgate auxiliary contact, the structural representation of phase closing auxiliary contact;
Figure 11 is the circuit theory diagrams that have the electric vacuum isolated phase change switch of manual isolating switch.
Among the figure: rotary switch-1, cover plate-2, the extinguishing arc cover--3, grid sheet-4, vacuum tube turnover line row--5, framework-6; Isolate the fixed contact group--7, auxiliary contact pressure plates II 8, phase closing auxiliary contact-9, base-10 is isolated moving contact square shaft-11, manually isolating switch turnover line row--and 12; Vacuum tube-13, push pedal connection handle-14, buffer spring-15, moving contact pull bar-16, push pedal-17, electromagnet-18; Back-moving spring II-19, rocking bar--20, shifting block axle-21, shifting block--22, pushing block--23, pitman shaft III-24; Connecting rod--25, auxiliary contact push pedal-26, isolate auxiliary contact--27, plate-28, tie point-29, reset tension spring I-30; Pitman shaft II-31, pitman shaft I-32, right angle tooth bar-33, sector shaft-34, isolate moving contact--35, positive combined floodgate auxiliary contact--36, auxiliary contact pressure plates I-37;
Embodiment
Through embodiment the present invention is done further elaboration below in conjunction with accompanying drawing:
Embodiment 1: as shown in Figure 1; A kind of electric vacuum isolated phase change switch; Comprise two groups of switch elements and a vacuum tube turnover line row 5 who is installed on the framework 6; Each group switch element comprises 13 groups in three vacuum tubes, and each group switch element passes through the break-make of its electromagnetic operating device with dynamic/static contacts in the realization vacuum tube 13, thereby makes the conversion of connecting and disconnecting of the circuit and phase sequence; Described vacuum insulating phase-change switch also comprises one group of manual isolating switch that is installed on the framework 6; Described manual isolating switch comprises a manual isolated operation device and three groups of isolation dynamic/ static contact groups 35,7 and passes in and out line row 12; Be used for realizing obvious breakpoint when vacuum tube 13 inside contact adhesions or other unusual time-division deenergizings.Whole switch is installed on the base 10, is covered with cover plate 2 on the framework 6.
Like Fig. 3, shown in Figure 4, described electromagnetic operating device comprises electromagnet 18, push pedal connection handle 14, push pedal 17, moving contact pull bar 16, back-moving spring II19; Adhesive push pedal connection handles 14 after wherein electromagnet 18 is switched on; Push pedal connection handle 14 is fixedly connected with push pedal 17, and the end of push pedal 17 is fixedly connected with moving contact pull bar 16 1 ends, and the rotation of push pedal 17 drives moving contact pull bar 16 and realizes that the connection of circuit is disconnected; Moving contact pull bar 16 is located among the buffer spring 15; Back-moving spring II19 one end is fixed on the electromagnet framework, and the other end is fixedly connected with push pedal connection handle 14, and back-moving spring II19 is used for the disjunction dynamic/static contact; Connect different switch elements, realize different phase sequences.
Shown in figure 10, electric vacuum isolated phase change switch also includes positive combined floodgate auxiliary contact 36, phase closing auxiliary contact 39; Drive auxiliary contact pressure plates I 37 or 38 rotations of auxiliary contact pressure plates II during push pedal 17 actions, positive combined floodgate auxiliary contact 36 or phase closing auxiliary contact 39 are connected or disjunctions.
Like Fig. 2, Fig. 5, Fig. 6, Fig. 7, Fig. 8, shown in Figure 9, manually the isolated operation device comprises sector shaft 34, right angle tooth bar 33, and pushing block 23, shifting block 22, shifting block axle 21, linkage is isolated moving contact square shaft 11, reset tension spring I30; Wherein: sector shaft 34 and 33 engagements of right angle tooth bar; Pushing block 23 is fixed on right angle tooth bar 33 upper ends; Shifting block 22 agrees with in pushing block 23, and the shifting block axle 21 on the shifting block 22 is fixed on the framework 6, and the lower end of shifting block 22 is fixedly connected with linkage; Isolating moving contact square shaft 11 is fixed on the plate 28 of linkage; Isolate moving contact square shaft 11 other ends isolation moving contact of ining succession mutually, isolate moving contact square shaft 11 and be used to realize that three groups are isolated dynamic/static contact 35 disjunctions or closure, reset tension spring I30 is fixedly connected with linkage through tie point 29.In practical application, can on framework, be provided with location notch at shifting block 22 back side installing and locating pins, with the movement locus of control shifting block 22, the movement locus of shifting block 22 is fixed, but drivening rod motion of mechanism track.
Described linkage comprises rocking bar 20; Connecting rod 25, plate 28, wherein: rocking bar 20 flexibly connects through pitman shaft I32 with connecting rod 25; Connecting rod 25 is movably connected on the framework through pitman shaft III24; Connecting rod 25 is fixedly connected with the lower end of shifting block 22, and connecting rod 25 flexibly connects through pitman shaft II31 with plate 28, isolates moving contact square shaft 11 and is fixed on the plate 28.
Manually isolating switch also comprises isolation auxiliary contact 27, drives auxiliary contact push pedal 26 during pushing block 23 actions and moves up and down, and auxiliary contact 27 are connected or disjunctions.
Shown in figure 11, a kind of circuit composition and operation principle of electric vacuum isolated phase change switch are following:
A kind of circuit of electric vacuum isolated phase change switch, by positive combined floodgate Z1, Z2, Z3 vacuum tube group, phase closing F1, F2, F3 vacuum tube group; The T control transformer, RD1, RD2, RD3 fuse, the positive phase closing of DHK-Z/F is removed key switch; DHK-Z1, the positive phase closing auxiliary contact of DHK-F1, DHK-Z, the positive and negative phase closing coil of DHK-F, the manual isolating switch of G is formed; Wherein: the manual isolating switch of G is electrically connected with electric power incoming line; Positive combined floodgate Z1, Z2, Z3 vacuum tube group, phase closing F1, F2, F3 vacuum tube group parallel connection ground are electrically connected with the manual isolating switch of G, the T control transformer respectively with positive combined floodgate Z1, Z2, Z3 vacuum tube group; Phase closing F1, F2, F3 vacuum tube group connect; Positive combined floodgate major loop and phase closing major loop are electrically connected with the T control transformer respectively, and RD1, RD2, RD3 fuse are electrically connected with the T control transformer, are used for former pair of limit short-circuit protection of transformer; Positive combined floodgate major loop is closed a floodgate by the DHK-Z positive and removes key switch, DHK-F1 phase closing auxiliary contact, DHK-Z positive closing coil and be composed in series successively, and the phase closing major loop is removed key switch, DHK-Z1 positive combined floodgate auxiliary contact, DHK-F phase closing coil by the DHK-F phase closing and is composed in series successively.
Each main components and parts effect
(1) the manual isolating switch of G---be used for the disjunction main circuit power, and when the vacuum tube adhesion, it can the disjunction main power source, and duplicate protection is arranged.
(2) Z1, Z2, Z3 vacuum tube---be used for positive combined floodgate major loop to connect.
(3) F1, F2, F3 vacuum tube---be used for the phase closing major loop to connect.
(4) T control transformer--when----is used for positive phase closing, provides 220V voltage to closing coil
(5) RD1, RD2, RD3 fuse----are used for former pair of limit short-circuit protection of transformer.
(6) the positive phase closing of DHK-Z/F is removed key switch---path when being used for positive phase closing with open circuit.
Mutual locking when (7) DHK-Z1, the positive phase closing auxiliary contact of DHK-F1----are used for positive phase closing, promptly when positive closed a floodgate, positive combined floodgate auxiliary contact Z1 normally closed contact was opened, and broke off the phase closing loop and prevented, and after positive closed a floodgate, anti-phase was being closed a floodgate.Phase closing herewith.
(8)------after DHK-Z/F removed the key switch closure, 220V delivered to positive anti-phase and brake cable circle two ends, and coil gets electric adhesive, made vacuum tube closed for DHK-Z, the positive and negative phase closing coil of DHK-F.
The electric vacuum isolated phase change switch operation principle:
With the positive combined floodgate is example:
The positive combined floodgate switch DHK-Z that closes, this moment, the positive closing coil got electric adhesive, and is as shown in Figure 4; Adhesive push pedal connection handles 14 after wherein electromagnet 18 is switched on, push pedal connection handle 14 is fixedly connected with push pedal 17, and the end of push pedal 17 is fixedly connected with moving contact pull bar 16 1 ends; The rotation of push pedal 17 drives moving contact pull bar 16 and realizes that the connection of circuit is disconnected; Back-moving spring II19 is used for the disjunction dynamic/static contact, Z1, Z2, Z3, and 3 closed positives of vacuum tube close a floodgate and accomplish.Load side W, U, V terminal have.Drive auxiliary contact pressing plate 38 during push pedal 17 actions and rotate together, its auxiliary contact DHK-Z1 opens simultaneously, breaks off phase closing coil power supply loop.
Otherwise, press the another button, realize that pull-in winding gets TURP and changes, cut off one group of vacuum tube of original conducting electric current, same order is accomplished another group vacuum tube current lead-through, reaches electronic commutation.
In the described this electric vacuum isolated phase change switch of present embodiment; When positive closes a floodgate, positive combined floodgate switch DHK-Z, this moment, the positive closing coil got electric adhesive; The rotation of push pedal 17 drives moving contact pull bar 16 and realizes that the connection of circuit is disconnected; Drive auxiliary contact pressing plate 38 simultaneously during push pedal 17 actions and rotate together, its auxiliary contact DHK-Z1 opens simultaneously, breaks off phase closing coil power supply loop.This mechanical structure has realized that it is to be accomplished by same mechanical action that positive combined floodgate and positive combined floodgate auxiliary contact Z1 normally closed contact are opened; Design very ingeniously; So greatly improved the fail safe of reversing switch circuit, and whole switching circuit structural design is compact, rationally; Easy to process, use simple.
Manual isolating switch course of action:
1, closed manually isolating switch:
Like Fig. 5, Fig. 6, Fig. 7, shown in Figure 8, be rotated counterclockwise 40 ° of sector shafts, the right angle tooth bar 33 that meshes with sector shaft is moved down; Promoting shifting block 22 through the pushing block 23 that is fixedly connected with right angle tooth bar 33 clockwise rotates; Linkage utilizes spring tension to make the connecting rod self-locking through the dead point, makes rocking bar 20 rotate counterclockwise 20 ° along rotating counterclockwise the isolation moving contact square shaft 11 that 20 ° of drives link to each other with rocking bar 20; Isolate the continuous isolation moving contact of moving contact square shaft 11 other ends and rotate counterclockwise 20 °; Moving contact is fitted with deciding contact, under the preloading spring effect, moving contact is compressed and decide contact conducting electric current, the closed completion.
2, cut-off manual interrupter:
Like Fig. 5, Fig. 6, Fig. 7, shown in Figure 9,40 ° of the sector shafts of turning clockwise make on the right angle tooth bar 33 with the sector shaft engagement and move; Promote shifting block 22 through the pushing block 23 that is fixedly connected with right angle tooth bar 33 and rotate counterclockwise, stir four connecting rods and overcome self-locking through the dead point, under the effect of spring force; Break away from fast the dead-centre position, drive rocking bar 20 and clockwise rotate 20 °, drive and isolate moving contact square shaft 11 and rotate and make moving contact clockwise rotate 20 ° to decide contact; Cut off electric current, cut-off completion.
Above said be specific embodiment of the present invention and the know-why used, if the change of doing according to conception of the present invention, when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, must belong to protection scope of the present invention.
Claims (6)
1. an electric vacuum isolated phase change switch comprises that one is installed in two groups of switch elements on the framework (6) and passes in and out line row (5), and each group switch element comprises three vacuum tubes (13) group; It is characterized in that; Each group switch element is through the break-make of its electromagnetic operating device with the interior dynamic/static contact of realization vacuum tube (13), thus the conversion of realization connecting and disconnecting of the circuit and phase sequence, and described electromagnetic operating device comprises electromagnet (18); Push pedal connection handle (14); Push pedal (17), moving contact pull bar (16), back-moving spring II (19); Adhesive push pedal connection handle (14) after wherein electromagnet (18) is switched on; Push pedal connection handle (14) is fixedly connected with push pedal (17); The end of push pedal (17) is fixedly connected with moving contact pull bar (16) one ends, and the rotation of push pedal (17) drives moving contact pull bar (16) and realizes that the connection of circuit is disconnected, and back-moving spring II (19) one ends are fixed on the electromagnet framework; The other end is fixedly connected with push pedal connection handle (14); Back-moving spring II (19) is used for the disjunction dynamic/static contact, it is characterized in that also including positive combined floodgate auxiliary contact (36), phase closing auxiliary contact (9); Drive auxiliary contact pressure plates I (37) or auxiliary contact pressure plates II (8) rotation during push pedal (17) action, positive combined floodgate auxiliary contact (36) or phase closing auxiliary contact (9) are connected or disjunction.
2. according to the said electric vacuum isolated phase change switch of claim 1; It is characterized in that; Described vacuum insulating phase-change switch also comprises one group of manual isolating switch that is installed on the framework (6); Described manual isolating switch comprises a manual isolated operation device and three groups of isolation dynamic/static contact groups (35,7) and passes in and out line row (12), is used for when vacuum tube (13) inside contact adhesion or other unusual time-division deenergizings.
3. according to the said electric vacuum isolated phase change switch of claim 2, it is characterized in that manually the isolated operation device comprises sector shaft (34), right angle tooth bar (33); Pushing block (23), shifting block (22), shifting block axle (21); Linkage is isolated moving contact square shaft (11), reset tension spring I (30); Wherein: sector shaft (34) and right angle tooth bar (33) engagement; Pushing block (23) is fixed on right angle tooth bar (33) upper end; Shifting block (22) agrees with in pushing block (23), and the shifting block axle (21) on the shifting block (22) is fixed on the framework (6), and the lower end of shifting block (22) is fixedly connected with linkage; Isolating moving contact square shaft (11) is fixed on the end of linkage; Isolate moving contact square shaft (11) other end isolation moving contact of ining succession mutually, isolate moving contact square shaft (11) and be used to realize that three groups are isolated dynamic/static contact (35) disjunctions or closure, reset tension spring I (30) is fixedly connected with linkage.
4. according to the said electric vacuum isolated phase change switch of claim 3; It is characterized in that described linkage comprises rocking bar (20), connecting rod (25), plate (28); Wherein: rocking bar (20) flexibly connects with connecting rod (25); Connecting rod (25) is fixedly connected with the lower end of shifting block (22), and connecting rod (25) flexibly connects with plate (28), isolates moving contact square shaft (11) and is fixed on the plate (28).
5. electric vacuum isolated phase change switch according to claim 3 is characterized in that manual isolating switch also comprises isolation auxiliary contact (27), drives auxiliary contact push pedals (26) during pushing block (23) action and moves up and down, and auxiliary contact (27) are connected or disjunction.
6. electric vacuum isolated phase change switch according to claim 2 is characterized in that, manually the dynamic/static contact (35,7) of isolating switch is provided with extinguishing arc cover (3), is provided with grid sheet (4) in the extinguishing arc cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101529562A CN101651059B (en) | 2009-09-24 | 2009-09-24 | Electric vacuum isolated phase change switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101529562A CN101651059B (en) | 2009-09-24 | 2009-09-24 | Electric vacuum isolated phase change switch |
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| Publication Number | Publication Date |
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| CN101651059A CN101651059A (en) | 2010-02-17 |
| CN101651059B true CN101651059B (en) | 2012-06-27 |
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| CN2009101529562A Expired - Fee Related CN101651059B (en) | 2009-09-24 | 2009-09-24 | Electric vacuum isolated phase change switch |
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| CN112992564B (en) * | 2019-12-17 | 2023-11-28 | 北京京人电器有限公司 | Phase change switch |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549431U (en) | 2009-09-24 | 2010-08-11 | 费江海 | Electric vacuum isolation phase-change switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549431U (en) | 2009-09-24 | 2010-08-11 | 费江海 | Electric vacuum isolation phase-change switch |
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