CN201503807U - Vacuum isolated phase-changing switch circuit - Google Patents
Vacuum isolated phase-changing switch circuit Download PDFInfo
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- CN201503807U CN201503807U CN2009201973347U CN200920197334U CN201503807U CN 201503807 U CN201503807 U CN 201503807U CN 2009201973347 U CN2009201973347 U CN 2009201973347U CN 200920197334 U CN200920197334 U CN 200920197334U CN 201503807 U CN201503807 U CN 201503807U
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- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000819 phase cycle Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- -1 as shown in Figure 5 Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
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Abstract
The utility model relates to a vacuum isolated phase-changing switch circuit which comprises a vacuum tube group Z1, Z2 and Z3 of positive-phase closing, a vacuum tube group F1, F2 and F3 of reverse-phase closing, a T control transformer, fuses RD1, RD2 and RD3, a DHK-Z/F positive/reverse phase closing key-lifting switch, a DHK-Z positive phase closing coil, a DHK-F reverse phase closing coil, and a G manual isolation switch. The vacuum isolated phase-changing switch circuit has the benefits of 1) designing the manual isolation switch, solving the problems in the prior art of having no obvious breakpoint, having no disconnection capability after a contact in the vacuum tubes is conglutinated, and having worse safety; and 2) having compact and reasonable design of the whole switch circuit.
Description
Technical field
The utility model relates to a kind of switching circuit, relates in particular to a kind of vacuum insulating phase-change switch circuit.
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, the easy scaling loss of contact, and the life-span is shorter; And the contact of the insulating phase-change switch of vacuum type is to work under vacuum state; breaking current is big, the outside no electric arc of vacuum tube, and the vacuum tube internal arc is little; contact is difficult for scaling loss; life-span is longer, and the insulating phase-change switch of vacuum type progressively replaces the application of the insulating phase-change switch of air type because of above-mentioned advantage on market; but domestic existing vacuum insulating phase-change switch circuit; too simple, unprotect element, and poor stability.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 circuit can not satisfy the demands.
The utility model content
The utility model has overcome the deficiencies in the prior art part, a kind of vacuum insulating phase-change switch circuit is provided, not only adopt and have manual isolating switch, fuse, and have positive phase closing auxiliary contact, disconnect anti-phase major loop simultaneously at the positive combined floodgate, vice versa, whole switching circuit structural design compactness, rationally, it is low to solve vacuum insulation insulating phase-change switch breaking capacity of the prior art, and does not have obvious breakpoint, there is not breaking capacity after the adhesion of vacuum tube inside contact, the problem that fail safe is relatively poor.
The utility model is to achieve the above object by the following technical programs: a kind of vacuum insulating phase-change switch circuit, comprise 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, the positive and negative phase closing coil of DHK-Z, DHK-F, the manual isolating switch of G; 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 are electrically connected with the manual isolating switch of G in parallel, 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, 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 by the DHK-Z positive close a floodgate remove key switch, DHK-Z positive closing coil is composed in series successively, the phase closing major loop by the DHK-F phase closing remove key switch, DHK-F phase closing coil is composed in series successively.
As preferably, also comprise DHK-Z1 positive combined floodgate auxiliary contact, DHK-F1 phase closing auxiliary contact, described DHK-Z1 positive combined floodgate auxiliary contact are connected in the phase closing major loop, and DHK-F1 phase closing auxiliary contact are connected in the positive combined floodgate major loop.
The beneficial effects of the utility model: 1) design has manual isolating switch, has solved no obvious breakpoint in the prior art, does not have breaking capacity after the adhesion of vacuum tube inside contact, the problem that fail safe is relatively poor.2) have positive phase closing auxiliary contact, when positive closed a floodgate, the positive combined floodgate auxiliary contact Z1 normally closed contact that is connected on the phase closing major loop was opened, and disconnected the phase closing loop, prevent that positive from closing a floodgate after, the anti-phase combined floodgate.Phase closing herewith.So greatly improved the fail safe of reversing switch circuit, and when adopting concrete mechanical structure to realize, it is that same mechanical action is finished that positive combined floodgate and positive combined floodgate auxiliary contact Z1 normally closed contact are opened, and designs very ingeniously.3) whole switching circuit structural design compactness, rationally easy to process, use simple.
Description of drawings
Fig. 1 is the schematic diagram of vacuum insulating phase-change switch circuit;
Fig. 2 is the perspective view of vacuum insulating phase-change switch;
Fig. 3 is the front view of Fig. 2;
Fig. 4 is the vertical view of Fig. 2;
Fig. 5 is the A-A cutaway view of Fig. 4;
Fig. 6 is the structural representation of the manual isolating switch manual isolated operation device when closed;
Fig. 7 is that the B of Fig. 6 is to partial view;
Fig. 8 is the structural representation of the manual isolating switch manual isolated operation device when disconnecting;
Fig. 9 is the structural representation of the manual isolating switch dynamic/static contact when closed;
Figure 10 is the structural representation of the manual isolating switch dynamic/static contact when disconnecting;
Figure 11 is positive combined floodgate auxiliary contact, the structural representation of phase closing auxiliary contact;
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
The utility model is further elaborated by embodiment below in conjunction with accompanying drawing:
Embodiment 1: as shown in Figure 1, a kind of circuit of vacuum insulating phase-change switch composition and operation principle are as follows:
A kind of circuit of vacuum insulating 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, the 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 is electrically connected with the manual isolating switch of G in parallel, the T control transformer respectively with positive combined floodgate Z1, Z2, Z3 vacuum tube group, phase closing F1, F2, F3 vacuum tube group connects, and positive combined floodgate major loop and phase closing major loop are electrically connected with the T control transformer respectively, RD1, RD2, the RD3 fuse is electrically connected with the T control transformer, is 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 and opening circuit.
Mutual locking when (7) the positive phase closing auxiliary contact of DHK-Z1, 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 disconnected the phase closing loop, prevent that positive from closing a floodgate after, the anti-phase combined floodgate.Phase closing herewith.
(8)------after DHK-Z/F removed the key switch closure, 220V delivered to just anti-phase and brake cable circle two ends the positive and negative phase closing coil of DHK-Z, DHK-F, and coil gets electric adhesive, makes the vacuum tube closure.
In concrete production, we realize the switch motion of foregoing circuit with concrete mechanical structure.With this vacuum insulating phase-change switch is example: a kind of vacuum insulating 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, 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.
As Fig. 4, shown in Figure 5, 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 fixedlyed connected with push pedal 17, fixedly connected with moving contact pull bar 16 1 ends in the end of push pedal 17, 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, the other end is fixedlyed connected with push pedal connection handle 14, back-moving spring II19 is used for the disjunction dynamic/static contact, connect different switch elements, realize different phase sequences.
As shown in figure 11, 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.
As Fig. 3, Fig. 6, Fig. 7, Fig. 8, Fig. 9, shown in Figure 10, 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, shifting block axle 21 on the shifting block 22 is fixed on the framework 6, fixedly connected with linkage in the lower end of shifting block 22, 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 fixedlyed connected with linkage by tie point 29.In actual applications, can on framework, be provided with location notch, with the movement locus of control shifting block 22 at shifting block 22 back side installing and locating pins.
Described linkage comprises rocking bar 20, connecting rod 25, plate 28, wherein: rocking bar 20 flexibly connects by pitman shaft I32 with connecting rod 25, pitman shaft III24 is located on the connecting rod 25, connecting rod 25 is fixedlyed connected with the lower end of shifting block 22, and connecting rod 25 flexibly connects by 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.
Electronic (band is manually) vacuum insulation insulating phase-change switch operation principle:
With the positive combined floodgate is example:
Positive combined floodgate switch DHK-Z closes, this moment, the positive closing coil got electric adhesive, as shown in Figure 5, adhesive push pedal connection handles 14 after wherein electromagnet 18 is switched on, push pedal connection handle 14 is fixedlyed connected with push pedal 17, and fixedly connected with moving contact pull bar 16 1 ends in the end of push pedal 17, 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 finish.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, disconnects 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 finished another group vacuum tube current lead-through, reaches electronic isolation commutation.
Manual isolating switch course of action:
1, closed manually isolating switch:
As Fig. 6, Fig. 7, Fig. 8, shown in Figure 9, 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 by the pushing block 23 of fixedlying connected with right angle tooth bar 33 clockwise rotates, linkage passes through the dead point, utilize spring tension to make the connecting rod self-locking, make 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 °, make moving contact and decide the contact applying, under the preloading spring effect moving contact is compressed and decide contact conducting electric current, closure is finished.
2, cut-off manual interrupter:
As Fig. 6, Fig. 7, Fig. 8, shown in Figure 10,40 ° of sector shafts turn clockwise, make on the right angle tooth bar 33 with sector shaft engagement and move, promote shifting blocks 22 by the pushing block 23 of fixedlying connected and rotate counterclockwise, stir four connecting rods and overcome self-locking and pass through the dead point with right angle tooth bar 33, 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 and finish.
In the described this vacuum insulating 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, disconnects phase closing coil power supply loop.This mechanical structure has realized that it is to be finished 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 compactness, rationally, easy to process, use simple.
Above described be specific embodiment of the utility model and the know-why used; if comply with the change that conception of the present utility model is done; when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, must belong to protection range of the present utility model.
Claims (2)
1. vacuum insulating phase-change switch circuit, it is characterized in that, comprise 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, the positive and negative phase closing coil of DHK-Z, DHK-F, the manual isolating switch of G; 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 are electrically connected with the manual isolating switch of G in parallel, 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, 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 by the DHK-Z positive close a floodgate remove key switch, DHK-Z positive closing coil is composed in series successively, the phase closing major loop by the DHK-F phase closing remove key switch, DHK-F phase closing coil is composed in series successively.
2. according to the described vacuum insulating phase-change switch circuit of claim 1, it is characterized in that also comprising DHK-Z1 positive combined floodgate auxiliary contact, DHK-F1 phase closing auxiliary contact, described DHK-Z1 positive combined floodgate auxiliary contact are connected in the phase closing major loop, and DHK-F1 phase closing auxiliary contact are connected in the positive combined floodgate major loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201973347U CN201503807U (en) | 2009-09-24 | 2009-09-24 | Vacuum isolated phase-changing switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201973347U CN201503807U (en) | 2009-09-24 | 2009-09-24 | Vacuum isolated phase-changing switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503807U true CN201503807U (en) | 2010-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201973347U Expired - Lifetime CN201503807U (en) | 2009-09-24 | 2009-09-24 | Vacuum isolated phase-changing switch circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201503807U (en) |
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2009
- 2009-09-24 CN CN2009201973347U patent/CN201503807U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG HENGTAI TECHNOLOGY CO.,LTD Free format text: FORMER OWNER: FEI JIANGHAI Effective date: 20100702 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 322200 ZHEJIANG HENGTAI TECHNOLOGY CO., LTD., ECONOMIC DEVELOPMENT ZONE ZHEJIANG PROVINC TO: 322200 ZHEJIANG HENGTAI TECHNOLOGY CO., LTD., NO. 288, YIDIANHONG STREET, ECONOMY DEVELOPMENT ZONE, PUJIANG COUNTY HEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100702 Address after: 322200 Zhejiang Hengtai Technology Co., Ltd., 288 Red Avenue, Pujiang Economic Development Zone, Zhejiang, China Patentee after: Zhejiang Hengtai Technology Co., Ltd. Address before: 322200 Zhejiang Hengtai Technology Co., Ltd., Pujiang Economic Development Zone, Zhejiang Province Patentee before: Fei Jianghai |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20100609 Effective date of abandoning: 20090924 |