CN109559928B - A kind of high-capacity intelligent phase-change switch - Google Patents
A kind of high-capacity intelligent phase-change switch Download PDFInfo
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- CN109559928B CN109559928B CN201710890357.5A CN201710890357A CN109559928B CN 109559928 B CN109559928 B CN 109559928B CN 201710890357 A CN201710890357 A CN 201710890357A CN 109559928 B CN109559928 B CN 109559928B
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/20—Driving mechanisms allowing angular displacement of the operating part to be effective in either direction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/08—Bases; Stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/12—Contact arrangements for providing make-before-break operation, e.g. for on-load tap-changing
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- Breakers (AREA)
Abstract
The present invention relates to low-voltage power supply facility field, it is bigger to disclose a kind of load capacity, integrated, intelligence degree is higher, is more suitable for the high-capacity intelligent phase-change switch for fabricating and producing in batches.It includes the upper casing successively installed from front to back, bottom case, bottom plate, the upper casing outer surface is equipped with display control board, bottom case center is fixed with motor, the shaft of motor connects electromagnetic relay, angular transducer is equipped with above electromagnetic relay, master board is fixed in bottom case, power module, the periphery of electromagnetic relay is at least evenly distributed with one group of moving contact, moving contact side is equipped with separating brake detection circuit, locking slide plate is equipped with below moving contact, tripping assembly is equipped on the inside of locking slide plate, moving contact passes through dynamic head support, dynamic head support is fixed on bottom case, dynamic head support outside is equipped with static contact corresponding with moving contact.
Description
Technical field
The present invention relates to low-voltage power supply facility fields, specifically, being about a kind of high-capacity intelligent phase-change switch.
Background technique
In low voltage electric network, three-phase imbalance refers to that three-phase current (or voltage) amplitude is inconsistent in the power system, and
Difference in magnitude is more than prescribed limit.Three-phase imbalance will cause route, the electric energy loss of distribution transformer increases, and distribution transforming power output subtracts
Less, distribution transforming generates zero-sequence current, and motor efficiency reduces, and influences the safe operation of electrical equipment.Therefore, in real power supply process
In, single-phase and two phase loads are evenly distributed on three-phase by power department as far as possible, to keep three-phase equilibrium；And it is opened using commutation
Pass is one of most common means.
China Patent Publication No. CN106409623A, publication date on February 15th, 2017, invention and created name was a kind of big
Capacity intelligence phase-change switch, this application discloses a kind of high-capacity intelligent phase-change switch, it includes pedestal and four guide rods,
In three be phase guide rod, another is zero curve guide rod, has movable contact on guide rod, guide rod can do axial-movement, have stationary contact on pedestal
Point, is equipped with latch system and fail-safe system on the pedestal below guide rod, and latch system includes phase line locking slide plate and zero curve lock
Slip limiting plate, the perpendicular side towards zero curve of three of phase line locking slide plate are equipped with phase line guiding surface and phase line locking bayonet；Zero
Line locking slide plate is equipped with zero curve guiding surface and zero curve locking bayonet；Fail-safe system, which includes two pieces, has the mistake proofing on mistake proofing inclined-plane sliding
Piece.Disadvantage is that overall load capacity is low, unit power is at high cost；Phase-change switch only has one group of firewire and zero curve defeated
Out, poor to the degree of regulation of tri-phase unbalance factor；Function without zero crossing arc extinguishing, arc light is big in commutation process；Do not set
Control display system is set, is controlled inconvenient for operation.
Summary of the invention
The present invention overcomes deficiency in the prior art, it is bigger to provide a kind of load capacity, integrated, intelligence degree
It is higher, it is more suitable for the high-capacity intelligent phase-change switch for fabricating and producing in batches.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions: a kind of high-capacity intelligent changes
It mutually switchs, including the upper casing, bottom case, bottom plate successively installed from front to back, the upper casing outer surface is equipped with display control board, bottom case
Center is fixed with motor, and the shaft of motor connects electromagnetic relay, is equipped with angular transducer, bottom case above electromagnetic relay
It is inside fixed with master board, power module, the periphery of electromagnetic relay is at least evenly distributed with one group of moving contact, moving contact side
Equipped with separating brake detection circuit, locking slide plate is equipped with below moving contact, moving contact passes through dynamic head support, and bottom case is fixed in dynamic head support
On, it moves head support outside and is equipped with static contact corresponding with moving contact；
One group of moving contact is divided into 3 moving contacts, respectively A phase moving contact, B phase moving contact, C phase moving contact；It is one group corresponding
In the static contact of each phase moving contact be respectively A phase static contact, B phase static contact, C phase static contact；
Bottom case one end is equipped with input terminal, and the other end is equipped with outlet terminal；Input terminal include A phase input terminal, B phase into
Line terminals, C phase input terminal, zero curve input terminal；A phase input terminal, B phase input terminal, C phase input terminal pass through conducting wire point
It is not correspondingly connected with A phase moving contact, B phase moving contact, the C phase moving contact in each group moving contact；Outlet terminal includes several firewires
Outlet terminal, zero curve outlet terminal, zero curve outlet terminal are connect with zero curve input terminal conducting wire, the ABC phase in every group of static contact
It is connect after static contact series connection with a firewire outlet terminal conducting wire；
A phase input terminal, B phase input terminal, C phase input terminal, zero curve input terminal are connect with master board respectively；
The display control board, power module, motor, electromagnetic relay, angular transducer, separating brake detection circuit respectively with
Master board connection.
Varistor arc-suppression circuit is connected between the moving contact and static contact.
The moving contact includes guide rod, and guide rod is equipped with terminals of connecting wire, guide rod inner end lower section is equipped with latch, in the middle part of guide rod
Equipped with cavity, dynamic head reset spring is equipped in cavity；The dynamic head support is equipped with supported hole, and limit shelves are equipped in supported hole
Block；Guide rod passes through supported hole, and postioning abutment is embedded in cavity；Outer end of guide rod is equipped with movable contact；The static contact includes that quiet head is led
Bar, quiet head guide rod are equipped with stationary contact, and valve jacket is cased on quiet head guide rod, and quiet head buffer spring, quiet head buffering are cased with outside valve jacket
Both ends of the spring is equipped with quiet head spring washer；The quiet head guide rod other end connects firewire connection terminal and is fixed in quiet head support, quiet
Bottom case is fixed in head support；Firewire connection terminal is connect with firewire outlet terminal；The movable contact and stationary contact are positioned opposite.
The bottom case includes bottom case epicoele, bottom case cavity of resorption, partition；Partition upper surface is equipped with locking type groove, and locking slide plate is set
In in locking type groove；Motor is fixed on baffle central position；Master board, power module, varistor arc-suppression circuit are set to bottom
It is intracavitary under shell；
The separating brake detection circuit includes magnet, Hall element；Magnet is fixed on the one side of moving contact；Hall element is solid
It is scheduled in dynamic head support, and fixed position is corresponding with magnet positions.
The electromagnetic relay includes fixed bracket, the skeleton in fixed bracket, intraskeletal coil, the rank across coil
The reset spring being arranged on iron, armature；Angular transducer fixing axle, angular transducer fixing axle and axis are equipped with above fixed bracket
It holds inner ring to be connected, bearing outer ring and upper casing are connected.
The firewire outlet terminal is integrated with divertor, which connect with master board.
Tripping assembly is equipped on the inside of the locking slide plate, the tripping assembly includes the jump positioned at locking slide plate inside upper part
Lock slip ring, tripping slip ring upper surface are equipped with tripping inclined-plane, the uniformly distributed protrusion in tripping slip ring lower surface periphery, protrusion and locking slide plate pair
It should contact, tripping slip ring inner ring is equipped with uniformly distributed needle roller, and tripping slip ring top is equipped with fixed cover board.
The locking slide plate is sector structure, and top is successively evenly distributed with A phase inclined-plane, B phase inclined-plane, C phase from right to left
Inclined-plane；A phase inclined-plane, B phase inclined-plane, C phase inclined-plane are respectively arranged below with A phase locking mouth, B phase locking mouth, C phase locking mouth；A phase inclined-plane
Guide support is correspondingly provided with B phase inclined-plane；Guide support is cased with slide plate reset spring respectively.
The master board is PCB integrated circuit board, and master board is fixedly installed on board support, fixed plate support
It is fixedly installed in partition lower surface.
Compared with prior art, the beneficial effects of the present invention are: the present invention increases the output of original one group of firewire for multiple groups
Firewire output, load power are higher；Multiple groups firewire output, so that voltage unbalance factor adjusting more refines；Eliminate connection
The dosage of plate, mistake proofing slide plate, electromagnet is reduced to one by four, keeps its structure simpler rationally, manufacture procedure of processing is more
Few, in addition integration degree and installation accuracy of the present invention are higher, and mechanical performance is more preferable；Using display control board and master board,
It had been able to achieve the present invention both in terms of commutation and tripping and manually controls or be able to achieve automatic control, control precision is higher, reliability
More preferably, intelligence degree is higher；In addition, the present invention can still pass through control system in the case where being not provided with tripping assembly
It controls electromagnetic relay and carries out full-automatic tripping control；The design of varistor arc-suppression circuit is designed zero crossing arc extinguishing
Supplement, increases the reliability of arc quenching effect；The present invention can control and adjust the actuation time of electromagnetic relay, so as to reality
Existing zero crossing arc extinguishing, increases product reliability and service life；The present invention is adjusted by the system of electronics and mechanical structure, energy
Power distribution between enough equilibrium three phase mains, reaches and improves power utilization efficiency, improves the alternate power of three-phase alternating-current supply
Unbalanced problem；Overall structure of the present invention is simpler, reasonable, integrated, intelligence degree is higher, is more suitable for processing system
It makes and produces in batches.
Detailed description of the invention
Fig. 1 is a kind of axonometric drawing of high-capacity intelligent phase-change switch；
Fig. 2 is the main view of Fig. 1；
Fig. 3 is a kind of high-capacity intelligent phase-change switch back side axonometric drawing；
Fig. 4 is the main view of Fig. 3；
Fig. 5 is that Fig. 1 removes the axonometric drawing after upper casing；
Fig. 6 is the main view of Fig. 5；
Fig. 7 is the axonometric drawing that Fig. 5 removes dynamic head support and the support of quiet head；
Fig. 8 is the main view of Fig. 7；
Fig. 9 is the axonometric drawing of head support；
Figure 10 is the main view of Fig. 9；
Figure 11 is distribution map when head support is 4
Figure 12 is the top view of Figure 11；
Figure 13 is the axonometric drawing that Fig. 7 removes dynamic/static contact；
Figure 14 is the main view of figure Figure 13；
Figure 15 is the back side axonometric drawing that a kind of high-capacity intelligent phase-change switch removes bottom case；
Figure 16 is the main view of Figure 15；
Figure 17 is the axis surveys view that Figure 15 removes master board；
Figure 18 is the main view of Figure 17；
Figure 19 is the axonometric drawing that Figure 17 removes board support；
Figure 20 is the main view of Figure 19；
Figure 21 is the axonometric drawing of bottom case；
Figure 22 is bottom case back side axonometric drawing；
Figure 23 is the axonometric drawing of moving contact；
Figure 24 is the top view of Figure 23；
Figure 25 is the cross-sectional view of A-A along Figure 24；
Figure 26 is the axis surveys view of static contact；
Figure 27 is the top view of Figure 26；
Figure 28 is the cross-sectional view of B-B along Figure 27；
Figure 29 is the axonometric drawing of electromagnetic relay and motor；
Figure 30 is the main view of Figure 29；
Figure 31 is the top view of Figure 29；
Figure 32 is the cross-sectional view of C-C along Figure 31；
Figure 33 is the main view of locking slide plate；
Figure 34 is more locking slide plate circumference uniform distributions；
Figure 35 is optical axis mapping on tripping assembly；
Figure 36 is that tripping assembly looks up axonometric drawing.
In figure, 1 upper casing, 2 bottom cases, 201 bottom case epicoeles, 202 bottom case cavity of resorptions, 203 partitions, 2011 locking type grooves, 3 bottom plates, 4
Display control board, 5 motors, 6 electromagnetic relays, 601 fixed brackets, 602 skeletons, 603 coils, 604 armature, 605 reset springs,
606 angular transducer fixing axles, 7 angular transducers, 8 master boards, 9 moving contacts, 901 A phase moving contacts, the dynamic touching of 902 B phases
Head, 903 C phase moving contacts, 904 guide rods, 905 terminals of connecting wire, 906 latch, 907 dynamic reset springs, 908 cavitys, 909 are moved
Contact, 10 dynamic head supports, 1001 supported holes, 1002 postioning abutments, 11 locking slide plates, 1101 A phase inclined-planes, 1102 B phase inclined-planes,
1103 C phase inclined-planes, 1104 A phase locking mouths, 1105 B phase locking mouths, 1106 C phase locking mouths, 1107 guide supports, 1108 are slided
Piece reset spring, 12 static contacts, 1201 A phase static contacts, 1202 B phase static contacts, 1203 C phase static contacts, 1204 quiet heads are led
Bar, 1205 stationary contacts, 1206 valve jackets, 1207 quiet buffer springs, 1208 quiet spring washers, 1209 firewire connection terminals, 13
Input terminal, 1301 A phase input terminals, 1302 B phase input terminals, 1303 C phase input terminals, 1304 zero curve input terminals,
14 outlet terminals, 1401 firewire outlet terminals, 1402 zero curve outlet terminals, 15 tripping assemblies, 1501 tripping slip rings, 1511 trippings
Inclined-plane, 1512 protrusions, 1513 needle rollers, 1514 fixed cover boards, 16 separating brake detection circuits, 1601 magnet, 1602 Hall elements, 17 pressures
Quick resistance arc-suppression circuit, 18 quiet head supports, 19 bearings, 20 power modules.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing: as shown in Fig. 1 to Figure 32, one
Kind high-capacity intelligent phase-change switch, including the upper casing 1, bottom case 2, bottom plate 3 successively installed from front to back, 1 outer surface of upper casing
Equipped with display control board 4,2 center of bottom case is fixed with motor 5, and the shaft of motor 5 connects electromagnetic relay 6, electromagnetism relay
It is equipped with angular transducer 7 above device 6, is fixed with master board 8, power module 20 in bottom case 2, the periphery of electromagnetic relay 6 is extremely
It is evenly distributed with one group of moving contact 9 less, 9 side of moving contact is equipped with separating brake detection circuit 16, is equipped with locking slide plate below moving contact 9
11, moving contact 9 passes through dynamic head support 10, and dynamic head support 10 is fixed on bottom case 2, moves 10 outside of head support and is equipped with and moving contact 9
Corresponding static contact 12；
One group of moving contact 9 divides for 3 moving contacts, respectively A phase moving contact 901, B phase moving contact 902, C phase moving contact
903；The static contact 12 of each phase moving contact is respectively A phase static contact 1201, B phase static contact 1202, C phase static contact in one group corresponding
1203；
2 one end of bottom case is equipped with input terminal 13, and the other end is equipped with outlet terminal 14；Input terminal 13 includes A phase end of incoming cables
Sub 1301, B phase input terminal 1302, C phase input terminal 1303, zero curve input terminal 1304；A phase input terminal 1301, B phase into
Line terminals 1302, C phase input terminal 1303 by conducting wire respectively with A phase moving contact 901, the B phase moving contact in each group moving contact 9
902, C phase moving contact 903 is correspondingly connected with；Outlet terminal 14 includes several firewire outlet terminals 1401, zero curve outlet terminal 1402,
Zero curve outlet terminal 1402 is connect with 1304 conducting wire of zero curve input terminal, after the ABC phase static contact series connection in every group of static contact 12
It is connect with 1401 conducting wire of firewire outlet terminal；
A phase input terminal 1301, B phase input terminal 1302, C phase input terminal 1303, zero curve input terminal 1304 are distinguished
It is connect with master board 8；
The display control board 4, power module 20, motor 5, electromagnetic relay 6, angular transducer 7, separating brake detection circuit
16 connect with master board 8 respectively；
Varistor arc-suppression circuit 17 is connected between the moving contact 9 and static contact 12.
As shown in Figure 23 to 25, the moving contact 9 includes guide rod 904, and guide rod 904 is equipped with terminals of connecting wire 905, guide rod
It is equipped with latch 906 below 904 inner ends, cavity 908 is equipped in the middle part of guide rod 904, dynamic head reset spring 907 is equipped in cavity 908,
904 outer end of guide rod is equipped with movable contact 909；As shown in Fig. 9 to Figure 10, the dynamic head support 10 is equipped with supported hole 1001, support
Postioning abutment 1002 is equipped in hole 1001；Guide rod 904 passes through supported hole 1001, and postioning abutment 1002 is embedded in cavity 908；Such as figure
Shown in 16 to 28, the static contact 12 includes quiet head guide rod 1204, and quiet 1204 one end of head guide rod is equipped with stationary contact 1205, and quiet head is led
It is cased with valve jacket 1206 on bar 1204, is cased with quiet head buffer spring 1207 outside valve jacket 1206, quiet 1207 both ends of head buffer spring are equipped with
Quiet head spring washer 1208；Quiet 1204 other end of head guide rod connects firewire connection terminal 1209 and is fixed in quiet head support 18,
Bottom case 2 is fixed in quiet head support 18；Firewire connection terminal 1209 is connect with firewire outlet terminal 1401；The movable contact 909 with
Stationary contact 1205 is positioned opposite.
As shown in Figure 21 to 22, the bottom case 2 includes bottom case epicoele 201, bottom case cavity of resorption 202, partition 203；On partition 203
Surface is equipped with locking type groove 2011, and locking slide plate 11 is set in locking type groove 2011；Motor 5 is fixed on 203 central location of partition；
Master board 8, power module 20, varistor arc-suppression circuit 17 are set in bottom case cavity of resorption 202；
The separating brake detection circuit 16 includes magnet 1601, Hall element 1602；Magnet 1601 is fixed on the one of moving contact 9
Side；Hall element 1602 is fixed in dynamic head support 10, and fixed position is corresponding with 1601 position of magnet.
As shown in Figure 29 to Figure 32, the electromagnetic relay 6 includes fixing bracket 601, fixing the skeleton in bracket 601
602, intraskeletal coil 603, the armature 604 across coil 603, the reset spring 605 being arranged on armature 604；Fixed bracket
601 tops are equipped with angular transducer fixing axle 606, and angular transducer fixing axle 606 and 19 inner ring of bearing are connected, 19 outer ring of bearing
It is connected with upper casing 1.
The firewire outlet terminal 1401 is integrated with divertor, which connect with master board 8.
Tripping assembly 15 is equipped with as shown in Figure 35 to 36, on the inside of the locking slide plate 11, the tripping assembly 15 includes position
In the tripping slip ring 1501 of 11 inside upper part of locking slide plate, 1501 upper surface of slip ring of tripping is equipped with tripping inclined-plane 1511, and tripping is slided
The uniformly distributed protrusion 1512 in 1501 lower surface periphery of ring, protrusion 1512 are contacted with the correspondence of locking slide plate 11, and tripping 1501 inner ring of slip ring is set
There is uniformly distributed needle roller 1513, tripping 1501 top of slip ring is equipped with fixed cover board 1514.
As shown in Figure 33 to 34, the locking slide plate 11 is sector structure, and top is successively evenly distributed with A phase from right to left
Inclined-plane 1101, B phase inclined-plane 1102, C phase inclined-plane 1103；A phase inclined-plane 1101, B phase inclined-plane 1102, below C phase inclined-plane 1103 respectively
Equipped with A phase locking mouth 1104, B phase locking mouth 1105, C phase locking mouth 1106；A phase inclined-plane 1101 is corresponding with B phase inclined-plane 1102 to be set
There is guide support 1107；Guide support 1107 is cased with slide plate reset spring 1108 respectively.
The master board 8 is PCB integrated circuit board, and master board 8 is fixedly installed on board support 21, fixed plate
Support 21 is fixedly installed in 203 lower surface of partition.
Divertor is copper-manganese divertor in the present invention；Motor 5 is DC speed-reducing；Stationary contact 1205 is silver
Contact, quiet head guide rod 1204 is red copper guide rod, valve jacket 1206 is stainless steel sleeve；Angular transducer 7 can detect 360 degree of corners, and
It can be carried out positive and negative gyration detection；The number 1401 of firewire outlet terminal and the group number of moving contact 9 are identical；7 institute of angular transducer
The circuit used is Point location detection circuit；Hall element 1602 is Hall sensor；604 tail end of armature is equipped with external screw thread, outer spiral shell
Line root is equipped with stop nut；Motor 5 is fixedly connected by bracket with bottom case；601 lower part of fixation bracket of electromagnetic relay 6 with
5 output shaft of motor is fixedly connected, and fixed 601 top of bracket is fixedly connected by bearing 19 with upper casing 1；It is additionally provided on static contact 12
Buffering spacer；Movable contact 909, latch 906 are embedded in 904 ontology of guide rod, and movable contact 909 stretches out the end of 904 ontology of guide rod
Face.
The present invention is equipped with communication interface, and the communication interface is RF radio communication module.
In the present invention, master board 8 is PCB integrated circuit board, is equipped with power supply module in the integrated circuit board.
The present invention has adaptation function, can be big according to current electric grid voltage unbalance factor and phase-change switch bearing power
Small, whether voltage unbalance factor can reduce after estimating commutation, judges automatically and whether executes commutation.
The present invention is used for for having multiple high-capacity intelligent phase-change switches, each great Rong in the network in the network of radio area
It measures intelligent phase-change switch to cooperate, realizes the balance of voltage of platform area supply network.
Before the present invention starts work, setting includes the ginsengs such as switch serial number, work time zone, voltage unbalance factor threshold value first
Number；After the present invention enables work, itself carries out initialization operation, the rotation of motor 5 adjustment angular position to jump according to default
Gate position, the voltage unbalance factor situation then arrived according to system detection sequentially turn on certain in each group dynamic/static contact ABC three-phase
One phase；Turn on process is as follows:
1. system initialization adjusts 5 corner initial position of motor in trip position；
2. according to system detection to register one's residence and locate non-equilibrium among three phase voltages, system command motor 5 rotates, and sequentially turns on each
A certain phase in group dynamic/static contact ABC three-phase, at this point, the load of each road is in "on" position；
3. high-capacity intelligent phase-change switch detects again after the working sequence of corresponding high-capacity intelligent phase-change switch arrives
It registers one's residence and locates three-phase voltage, phase angle, differentiates phase sequence, detection load phase current values, and voltage unbalance factor after commutation is estimated accordingly
Whether relatively currently reduce, if so, the one group of implementation of voltage unbalance factor reduction at most after commutation is selected to change in each group load
Phase executes corresponding commutation movement；It detects related data again later and estimates the voltage unbalance factor after commutation, according to estimating
The case where, it repeats the above steps and judges whether to execute and how to execute the commutation movement of subsequent three groups of loads；
It, can only be to one group in each section 4. working time section is divided into multiple sections by high-capacity intelligent phase-change switch
Commutation movement is implemented in load, remaining group cannot implement commutation movement.
The detailed process of commutation movement of the present invention are as follows:
1. motor 5 obtains system command, suspend after completing rotation according to first retainer, system command is electricity in particular moment
6 power on/off of magnetic relay, armature 604 move, and push the moving contact 9 of corresponding position mobile, the 9 locking stops 906 of institute of moving contact with
Moving contact 9 is mobile, by commutation inclined-plane corresponding on locking slide plate 11, pushes locking slide plate 11 to rotate by a certain angle, at this point, working as
The latch 906 of the moving contact 9 of preceding work phase is detached from out of corresponding locking slide plate 11 locking mouth, and latch 906 is by moving contact 9
The active force of the dynamic head reset spring 907 in inside does resetting movement, in the very short time after the completion of work at present phase separating brake, target work
Make phase dynamic/static contact and realizes combined floodgate；Work at present phase separating brake mutually close a floodgate with target operation between time interval be less than 20ms；
2. locking slide plate 11 is done under the promotion of slide plate reset spring 1108 after target operation mutually completes feed motion
Rotary motion is resetted, the moving contact assembly of target operation phase is locked in conduction position, at this point, the latch of target operation phase
906 are fixed in corresponding locking mouth.One group of commutation movement is completed at this time；
3. similarly, system is according to program and testing result, command motor 5 rotates and electromagnetic relay 6 according to actual needs
Power on/off completes the commutation movement of remaining group.
4. can only at most there is a phase to be in "on" position in each group, remaining two-phase is in gate-dividing state；Or it is same
Three-phase is in gate-dividing state in group.
When system detection load current exceeds setting range, starting tripping program, phase line separating brake simultaneously, tripping in each group
Process is as follows:
1. each group firewire exports, nominal load current is identical, when system detection load current is more than 1.5 times of rated current
And the duration be more than setting value when, system starting tripping program；
2. system sends to motor 5 and instructs, according to the angle position currently stopped, rotation to trip position；
3. system controls 6 power on/off of electromagnetic relay, coil 603 it is electric, armature fortune 604 is dynamic, into tripping inclined-plane 1511
It is interior, push tripping slip ring 1501 to rotate by a certain angle, tripping slip ring 1501 pushes locking slide plate 11 by the protrusion 1512 of itself
The rotation for doing the same direction, after turning an angle, the latch 906 of all conducting phases of each group is detached from corresponding locking mouth, complete
At homing action, separating brake is realized.
In commutation process, System on Chip/SoC judges whether corresponding phase is complete by the signal of detection separating brake detection circuit 16
It is acted at separating brake, and completes the time span of separating brake movement, and to the zero passage point moment pair at separating brake moment and ac power waveform
Than belonging to normal separating brake, if the separating brake moment is inclined if the separating brake moment is in the 0.5ms time range before zero passage point moment
From this time range, then system, which records and calculates, deviates the time, when executing next commutation movement, is powered to electromagnetic relay 6
Moment gives corresponding adjustment, so that the separating brake moment is in always in the 0.5ms time range before ac power waveform zero crossing,
To realize good arc quenching effect.
In commutation process, motor 5 is controlled rotation first retainer by master board 8, and detects practical turn through angular transducer 7
Angle feeds back to system judgement, realizes that motor 5 rotates the closed-loop control of angle, to accurately control commutation and the accurate nothing of trip operation
Accidentally.
It is briefly described by taking the high-capacity intelligent phase-change switch with four groups of moving contacts 9 as an example below, not specified (NS)
Part is identical as above content, repeats no more.
Four groups of moving contacts 9 are evenly distributed with around electromagnetic relay 6, every group of moving contact 9 is 3 moving contacts, respectively
For A phase moving contact 901, B phase moving contact 902, C phase moving contact 903, A phase moving contact 901, the B phase moving contact of every group of moving contact 9
902, C phase moving contact 903 is pooled together by conducting wire, exports connection firewire outlet terminal 1401 as a phase firewire；Stationary contact
First 12 have four groups, and every group of static contact 12 is correspondingly provided with A phase static contact 1201, B phase static contact 1202, C phase static contact 1203, often
One group of moving contact 9 is corresponding with one group of static contact 12, A phase moving contact 901, B phase moving contact 902, C in each group of moving contact 9
Phase moving contact 903 divides with A phase static contact 1201, B phase static contact 1202, the C phase static contact 1203 in the static contact 12 of respective sets
It is not correspondingly formed one big group；A phase static contact 1201, B phase static contact 1202, C phase static contact in each group of static contact 12
1203 are connected by conducting wire, are formed phase firewire output, are connected to firewire outlet terminal 1401.At work, between big group solely
Vertical work.
Locking slide plate 11 is equipped with below the guide rod 904 of the moving contact 9；Locking slide plate 11 totally four, circumference uniform distribution is in electricity
Around magnetic relay 6, and in the locking type groove 2011 being fixed on bottom case 2；Four 11 circumference uniform distribution of locking slide plate such as Figure 34 institutes
Show；As shown in Figure 33 to 34, locking slide plate 11 is sector structure, including two guide supports, 1107, three commutation inclined-planes and three
A locking mouth, every locking slide plate 11 are furnished with 2 slide plate reset springs 1108；The inside upper part of locking slide plate 11 is equipped with tripping and slides
Ring 1501, tripping slip ring 1501 are circle, and tripping 1501 periphery of slip ring is evenly equipped with 4 protrusion 1512 and 1 tripping inclined-planes 1511,
1501 inner ring of slip ring that trips is equipped with uniformly distributed needle roller 1513, and tripping 1501 top of slip ring is equipped with fixed cover board 1514, extremely such as Figure 35
Shown in 36；4 correspondences of protrusion 1512 and 4 locking slide plate 11 contact；Locking slide plate 11 is overall structure, four locking slide plates 11
It works independently；When trip operation generates, tripping slip ring 1501 pushes four locking slide plates 11 to rotate simultaneously, realizes four groups of firewires
It exports while tripping.
2 upper end of bottom case is successively arranged A phase end of incoming cables 1301, B phase end of incoming cables 1302, C phase end of incoming cables from left to right
1303 and zero curve end of incoming cables 1304, ABC phase end of incoming cables is separately connected by the ABC phase of conducting wire and 4 groups of moving contacts；2 lower end of bottom case
1402,4 firewire outlet terminals 1401 of 4 firewire outlet terminals 1401 and a zero curve outlet terminal are followed successively by from left to right to divide
It is not connected with static contact 12, zero curve outlet terminal 1402 is directly connected with zero curve input terminal 1304 via conducting wire；Firewire outlet
Terminal 1401 is integrated with copper-manganese divertor.The A phase input terminal 1301 is connect with 4 901 conducting wires of A phase moving contact, together
Reason, BC phase input terminal are connect with the moving contact conducting wire of corresponding phase.
The display control board 4 includes display screen, indicator light and debugging key；Debugging key includes OK key, esc key, a left side
Directionkeys, right direction key, upper directionkeys and lower directionkeys, system reset key etc..
In the present invention, tripping assembly 15 can also be not provided with and tripped, in the case where this assembly 15 without tripping, led to
It crosses control electromagnetic relay 6 and rotates first retainer, rest on the non-conduction phase position of a certain group of needs tripping, given by control system
Electromagnetic relay 6 is powered, and armature 604 pushes guide rod 904, to push locking slide plate 11 to rotate by a certain angle, so that conducting phase
The block 906 that is locked to mutually separated with the locking mouth of locking slide plate 11, realize the other tripping of this group.In the process, electromagnetic relay 6
Conduction time distributed by control system, conduction time length be less than commutation movement conduction time length (about 2/3-1/3
Commutation movement energization period), locking slide plate 11 is rotated by a certain angle, be connected phase separating brake, and armature 604 push
Before guide rod 904 and then promotion latch 906 enter lock position, electromagnetic relay 6 is powered off, and armature 604 resets, and armature simultaneously
604 guide rods 904 pushed are also corresponding to be resetted, and trip operation is completed.
Technical characteristic of the present invention without description can realize that details are not described herein by or using the prior art, certainly,
Above-mentioned specific embodiment is not limitation of the present invention, and the present invention is also not limited to above-mentioned specific embodiment, this skill
The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made within the essential scope of the present invention should also be fallen into
In protection scope of the present invention.
Claims (8)
1. a kind of high-capacity intelligent phase-change switch, including the upper casing (1), bottom case (2), bottom plate (3) successively installed from front to back,
It is characterized in that, upper casing (1) outer surface is equipped with display control board (4), and bottom case (2) center is fixed with motor (5), motor
(5) shaft connects electromagnetic relay (6), is equipped with angular transducer (7) above electromagnetic relay (6), is fixed in bottom case (2)
Master board (8), power module (20), the periphery of electromagnetic relay (6) are at least evenly distributed with one group of moving contact (9), move touching
Head (9) side is equipped with separating brake detection circuit (16), is equipped with locking slide plate (11) below moving contact (9), and moving contact (9) passes through dynamic head
It supports (10), dynamic head support (10) is fixed on bottom case (2), is equipped on the outside of dynamic head support (10) corresponding with moving contact (9) quiet
Contact (12)；
One group of moving contact (9) is divided into 3 moving contacts, respectively A phase moving contact (901), B phase moving contact (902), C phase moving contact
(903)；The static contact (12) of each phase moving contact is respectively A phase static contact (1201), B phase static contact (1202), C in one group corresponding
Phase static contact (1203)；
Bottom case (2) one end is equipped with input terminal (13), and the other end is equipped with outlet terminal (14)；Input terminal (13) include A phase into
Line terminals (1301), B phase input terminal (1302), C phase input terminal (1303), zero curve input terminal (1304)；A phase end of incoming cables
Sub (1301), B phase input terminal (1302), C phase input terminal (1303) by conducting wire respectively with the A in each group moving contact (9)
Phase moving contact (901), B phase moving contact (902), C phase moving contact (903) are correspondingly connected with；Outlet terminal (14) includes several firewires
Outlet terminal (1401), zero curve outlet terminal (1402), zero curve outlet terminal (1402) and zero curve input terminal (1304) conducting wire
It connects, is connect after the ABC phase static contact series connection in every group of static contact (12) with firewire outlet terminal (1401) conducting wire；
A phase input terminal (1301), B phase input terminal (1302), C phase input terminal (1303), zero curve input terminal (1304)
It is connect respectively with master board (8)；
The display control board (4), power module (20), motor (5), electromagnetic relay (6), angular transducer (7), separating brake inspection
Slowdown monitoring circuit (16) is connect with master board (8) respectively；
Varistor arc-suppression circuit (17) are connected between the moving contact (9) and static contact (12)；
The moving contact (9) includes guide rod (904), and guide rod (904) is equipped with terminals of connecting wire (905), guide rod (904) inner end lower section
Equipped with latch (906), cavity (908) are equipped in the middle part of guide rod (904), are equipped in cavity (908) dynamic head reset spring (907)；
The dynamic head support (10) is equipped with supported hole (1001), is equipped with postioning abutment (1002) in supported hole (1001)；Guide rod (904)
Across supported hole (1001), postioning abutment (1002) is embedded in cavity (908)；Guide rod (904) outer end is equipped with movable contact (909)；
The static contact (12) includes quiet head guide rod (1204), and quiet head guide rod (1204) one end is equipped with stationary contact (1205), quiet head guide rod
(1204) it is cased on valve jacket (1206), quiet head buffer spring (1207), quiet head buffer spring (1207) is cased with outside valve jacket (1206)
Both ends are equipped with quiet head spring washer (1208)；Quiet head guide rod (1204) other end connects firewire connection terminal (1209) and is fixed on
On quiet head support (18), quiet head support (18) is fixed on bottom case (2)；Firewire connection terminal (1209) and firewire outlet terminal
(1401) it connects；The movable contact (909) and stationary contact (1205) are positioned opposite.
2. a kind of high-capacity intelligent phase-change switch according to claim 1, which is characterized in that the bottom case (2) includes bottom
Shell epicoele (201), bottom case cavity of resorption (202), partition (203)；Partition (203) upper surface is equipped with locking type groove (2011), and locking is sliding
Piece (11) is set in locking type groove (2011)；Motor (5) is fixed on partition (203) central location；Master board (8), power supply mould
Block (20), varistor arc-suppression circuit (17) are set in bottom case cavity of resorption (202).
3. a kind of high-capacity intelligent phase-change switch according to claim 1, which is characterized in that the master board (8) is
PCB integrated circuit board, master board (8) are fixedly installed on board support (21), and board support (21) is fixedly installed in
Partition (203) lower surface.
4. a kind of high-capacity intelligent phase-change switch according to claim 1, which is characterized in that the separating brake detection circuit
It (16) include magnet (1601), Hall element (1602)；Magnet (1601) is fixed on the one side of moving contact (9)；Hall element
(1602) it is fixed on dynamic head support (10), and fixed position is corresponding with magnet (1601) position.
5. a kind of high-capacity intelligent phase-change switch according to claim 1, which is characterized in that the electromagnetic relay (6)
Including in fixed bracket (601), fixed bracket (601) skeleton (602), intraskeletal coil (603), pass through coil (603)
Armature (604), the reset spring (605) that is arranged on armature (604)；It is solid equipped with angular transducer above fixed bracket (601)
Dead axle (606), angular transducer fixing axle (606) and bearing (19) inner ring are connected, and bearing (19) outer ring and upper casing (1) are connected.
6. a kind of high-capacity intelligent phase-change switch according to claim 1, which is characterized in that the firewire outlet terminal
(1401) it is integrated with divertor, which connect with master board (8).
7. a kind of high-capacity intelligent phase-change switch according to claim 1, which is characterized in that in the locking slide plate (11)
Side is equipped with tripping assembly (15), and tripping assembly (15) includes the tripping slip ring positioned at locking slide plate (11) inside upper part
(1501), tripping slip ring (1501) upper surface is equipped with tripping inclined-plane (1511), and tripping slip ring (1501) lower surface periphery is uniformly distributed convex
It rises (1512), raised (1512) are contacted with locking slide plate (11) correspondence, and tripping slip ring (1501) inner ring is equipped with uniformly distributed needle roller
(1513), tripping slip ring (1501) top is equipped with fixed cover board (1514).
8. a kind of high-capacity intelligent phase-change switch according to claim 1, which is characterized in that the locking slide plate (11) is
Sector structure, top be successively evenly distributed with from right to left A phase inclined-plane (1101), B phase inclined-plane (1102), C phase inclined-plane (
1103)；A phase inclined-plane (1101), B phase inclined-plane (1102), C phase inclined-plane (1103) are respectively arranged below with A phase locking mouth (1104), B
Phase locking mouth (1105), C phase locking mouth (1106)；A phase inclined-plane (1101) and the corresponding surface on B phase inclined-plane (1102) are equipped with guiding
It supports (1107)；Guide support (1107) is cased with slide plate reset spring (1108) respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710890357.5A CN109559928B (en) | 2017-09-27 | 2017-09-27 | A kind of high-capacity intelligent phase-change switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710890357.5A CN109559928B (en) | 2017-09-27 | 2017-09-27 | A kind of high-capacity intelligent phase-change switch |
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| CN109559928A CN109559928A (en) | 2019-04-02 |
| CN109559928B true CN109559928B (en) | 2019-11-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209902A (en) * | 1996-11-25 | 1999-03-03 | 索苛麦克股份有限公司 | Switchgear such as change-over switch for electric installation |
| CN201332042Y (en) * | 2008-12-22 | 2009-10-21 | 南京双京电器有限责任公司 | Small-scale high-voltage rotary isolating and phase-changing switch |
| JP2011204665A (en) * | 2010-03-04 | 2011-10-13 | Canon Inc | Rotating operation unit and electronic equipment |
| CN106409623A (en) * | 2016-05-27 | 2017-02-15 | 秦传勇 | Smart phase-change switch |
| CN206134519U (en) * | 2016-03-31 | 2017-04-26 | 南京鼎牌电器有限公司 | Phase change switch |
| CN207587600U (en) * | 2017-09-27 | 2018-07-06 | 菏泽峥艳电力科技有限公司 | A kind of high-capacity intelligent phase-change switch |
-
2017
- 2017-09-27 CN CN201710890357.5A patent/CN109559928B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209902A (en) * | 1996-11-25 | 1999-03-03 | 索苛麦克股份有限公司 | Switchgear such as change-over switch for electric installation |
| CN201332042Y (en) * | 2008-12-22 | 2009-10-21 | 南京双京电器有限责任公司 | Small-scale high-voltage rotary isolating and phase-changing switch |
| JP2011204665A (en) * | 2010-03-04 | 2011-10-13 | Canon Inc | Rotating operation unit and electronic equipment |
| CN206134519U (en) * | 2016-03-31 | 2017-04-26 | 南京鼎牌电器有限公司 | Phase change switch |
| CN106409623A (en) * | 2016-05-27 | 2017-02-15 | 秦传勇 | Smart phase-change switch |
| CN207587600U (en) * | 2017-09-27 | 2018-07-06 | 菏泽峥艳电力科技有限公司 | A kind of high-capacity intelligent phase-change switch |
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