CN207504634U - A kind of double power supply converting switch control circuit - Google Patents
A kind of double power supply converting switch control circuit Download PDFInfo
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- CN207504634U CN207504634U CN201721356684.4U CN201721356684U CN207504634U CN 207504634 U CN207504634 U CN 207504634U CN 201721356684 U CN201721356684 U CN 201721356684U CN 207504634 U CN207504634 U CN 207504634U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model is related to a kind of double power supply converting switch control circuit, double power supply converting switch includes the switching mechanism for common power supply and stand-by power supply to be controlled to close a floodgate, and switching mechanism is driven by motor.Control circuit includes：Rotate forward control unit：For motor to be controlled to rotate forward so that switching mechanism moves to common power supply closing position；Invert control unit：For controlling motor reversal so that switching mechanism moves to stand-by power supply closing position；Switch control unit：For commonly using power supply and stand-by power supply abnormality detection and controlling the switching for rotating forward control unit and inverting control unit working condition.When common power supply is normal, switching mechanism switches to common power supply closing position；When common abnormity of power supply, switching mechanism switches to stand-by power supply power supply closing position；When common power supply and stand-by power supply are abnormal, switching mechanism stops switching.Compared with prior art, the utility model circuit is simple, switching reliability is high, meets requirement of the new edition this standard to basic type controller.
Description
Technical field
The utility model is related to a kind of dual power supplies to switch product, and electricity is controlled more particularly, to a kind of double power supply converting switch
Road.
Background technology
Double power supply converting switch is from (common power supply) changing-over of power supply all the way to another way power supply (standby electricity by load circuit
Source) device for switching, be used primarily in emergency power supply system.When common power supply goes wrong and cannot continue as load equipment has
Stand-by power supply is switched to during effect power supply, so as to the normal and continuous operation of proof load equipment.
Double power supply converting switch generally includes two breakers and the switching mechanism being set between two breakers.Switching
Mechanism generally comprises turntable and is symmetrically disposed on the pushing of turntable both sides, and turntable is used to that pushing to be driven to swing, and pushing pushes away
The handle of dynamic breaker, to realize the combined floodgate of breaker or separating brake.
Dual power supply currently sold on the market switching product only has detection normal stand-by power supply mostly in order to cost-effective
Decompression function can not realize the function of detection open phases of three-phase power source.New edition this standard《GB 14048.11-2016 low tension switches
Equipment and control device 6-1 parts multifunctional electric appliance transfer switching equipment》New demand, basic model dual power supply are proposed after out
Controller must have detectable common phase shortage and decompression, spare only to detect decompression.
In addition, existing dual power supply switching product, since compact structure is compact, the auxiliary of detection breaker closing in place is opened
Pass is difficult to synchronous with breaker closing, and auxiliary switch is in place but breaker does not close really, is led to breaker
Lower mouth is without electricity, function of supplying power failure.
Utility model content
The purpose of this utility model is exactly to provide a kind of dual power supply in order to overcome the problems of the above-mentioned prior art and cut
Change ON-OFF control circuit.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of double power supply converting switch control circuit, the double power supply converting switch include for control common power supply and
The switching mechanism that stand-by power supply closes a floodgate, switching mechanism connection motor, the motor positive and inverse move drive switching mechanism
Moving to setting position causes common power supply or stand-by power supply to close a floodgate, and the common power supply and stand-by power supply are three-phase and four-line
Power supply processed, the control circuit include：
Rotate forward control unit：For motor to be controlled to rotate forward so that switching mechanism moves to common power supply closing position；
Invert control unit：For controlling motor reversal so that switching mechanism moves to stand-by power supply closing position；
Switch control unit：Control unit and reversion control are rotated forward for commonly using power supply and stand-by power supply abnormality detection and controlling
The switching of cell operation state processed, when common power supply is normal, switching mechanism switches to common power supply closing position, when common electricity
During the exception of source, switching mechanism switches to stand-by power supply power supply closing position, when common power supply and abnormal stand-by power supply, switching
Mechanism stops switching.
The rotating forward control unit includes the first microswitch, the first relay power supply branch and discharge delay and rotates forward branch
Road, any one phase in the common power supply of first microswitch common end connection and as the anode of rotating forward control unit,
For common mains neutral line output terminal as the cathode for rotating forward control unit, the first microswitch common end is also connected with first
Relay power supply branch, first relay power supply branch connection motor rotate forward power supply terminal, and first microswitch is normal
Closed end rotates forward branch by discharge delay and is connected to the first relay power supply branch, and the switch control unit connects the first relay
Power supply branch and discharge delay rotate forward branch；
Before switching mechanism does not move to common power supply closing position, the first microswitch normal-closed end is closed, switching control list
Member control the first relay power supply branch work, motor rotate forward；
After switching mechanism moves to common power supply closing position, the first microswitch normal-closed end is disconnected with common end, at this point,
If common power supply is normal, discharge delay rotates forward branch output voltage and causes the power supply finger delays work of the first relay until delay knot
Beam, and then motor rotates forward until delay terminates；If common abnormity of power supply, switch control unit controls the first relay power supply branch
It is stopped, while switch control unit control reversion control unit work, motor reversal, switching mechanism move to stand-by power supply
Closing position.
The first relay power supply branch includes the first relay, rotates forward control triode, the first relay coil one
End connection rotates forward control unit anode, and the connection of the first relay coil other end rotates forward control transistor collector, rotates forward control
The connection of triode emitting stage rotates forward control unit cathode, rotates forward control triode base stage connection switch control unit, the first relay
The normally-closed contact of the first switch of device is hanging, and the normally opened contact connection of the first switch of the first relay is rotating forward control unit just
Pole, the normally-closed contact connection reversion control unit cathode of the second switch of the first relay, the second switch of the first relay
Normally opened contact connection rotates forward control unit cathode.
The discharge delay rotates forward branch and includes multiple be connected in series between rotating forward control unit anode and cathode
Divider resistance, the resistance both ends being directly connected to rotating forward control unit cathode are connected in parallel to the first capacitance, the described first electricity
Hold anode connection switch control unit.
The reversion control unit includes the second microswitch, the second relay power supply branch and discharge delay reversion branch
Road, the second microswitch common end connection stand-by power supply in any one phase and as invert control unit anode,
Cathode of the stand-by power supply neutrality line output terminal as reversion control unit, the second microswitch common end is also connected with second
Relay power supply branch, second relay power supply branch connection motor reversal power supply terminal, second microswitch are normal
Closed end inverts branch by discharge delay and is connected to the second relay power supply branch, and the switch control unit connects the second relay
Power supply branch；
Common power supply no exceptions, switch control unit lock the second relay power supply branch, and the second power supply branch is not
Work；
Common power supply is abnormal, and switch control unit unlocks the second relay power supply branch, the second power supply branch
Work, motor reversal, switching mechanism move to stand-by power supply closing position.
The second relay power supply branch includes the second relay, reversion control triode, the second relay coil one
End connection reversion control unit anode, second relay coil other end connection reversion control transistor collector, reversion control
The connection of triode emitting stage rotates forward control unit cathode, and reversion control triode base stage and emitter are all connected with switching control list
Member, the normally-closed contact of the first switch of the second relay is hanging, the normally opened contact connection reversion of the first switch of the second relay
Control unit anode, the normally-closed contact and normally opened contact of the second switch of the second relay are hanging.
The discharge delay reversion branch includes multiple be connected in series between reversion control unit anode and cathode
Divider resistance, the resistance both ends being directly connected to reversion control unit cathode are connected in parallel to the second capacitance, the described second electricity
Hold anode and reversion control transistor base, the second capacitance cathode connection reversion control transistor emitter are connected to by resistance.
Switch control unit includes the common power phase shortage detection for detecting whether common mains neutral point voltage is zero
Module, common control output end mouthful and spare locking output port, the common electricity of common power phase shortage detection module connection
Source neutral point, the common control output end mouthful set two and are respectively connected to rotate forward control unit, the spare lock
Set output terminal mouth sets two and is respectively connected to reversion control unit.
Compared with prior art, the utility model has the following advantages that：
(1) whether it is zero that the utility model is pressed using the common common mains neutral point of power phase shortage detection module detection,
Open-phase fault does not occur if zero common power supply, otherwise commonly uses power supply and open-phase fault occurs, and then pass through switch control unit
Control reversion control unit work, switching mechanism switch to stand-by power supply position, and auxiliaries-supply circuit-breaker closes a floodgate, and starts standby electricity
Source；
Additionally, due to by directly using any one phase in common power supply and stand-by power supply as rotate forward control unit and
Invert the power supply of control unit, therefore when no-voltage fault occurs for common power supply or stand-by power supply, rotate forward control unit with
Reversion control unit will not work, and directly reflect no-voltage fault, it is thus achieved that common power detecting phase shortage and decompression
Function, stand-by power supply detection decompression function, meets《GB 14048.11-2016 low voltage switch equipments and control device 6-1 portions
Division multi-functional electric appliance transfer switching equipment》It is required that；
(2) two microswitches of the utility model are equivalent to the common power supply of detection and the corresponding breaker closing of stand-by power supply
Auxiliary switch in place, and auxiliary switch be difficult to it is synchronous with breaker closing, i.e., microswitch normal-closed end disconnect after break
Road device can't really close, therefore the utility model rotates forward control unit and overturning control unit is being correspondingly arranged discharge delay just
Turn branch and discharge delay reversion branch, so as to can continue to after the disconnection of microswitch normal-closed end so that motor rotating forward or anti-
Turn, so that switching mechanism movement is in place so that common power supply or the corresponding short-circuiting device in-place closing of stand-by power supply ensure to supply
Electric reliability；
(3) for the utility model when common power supply is normal, the spare locking output port of switch control unit is anti-by inciting somebody to action
The base stage for turning control triode is connected with emitter, is forced reversion control triode locking, the second relay power supply branch can not
Work, switching mechanism can not be switched to stand-by power supply position, ensure that the reliability of power supply.
Description of the drawings
Fig. 1 is the electrical block diagram of the utility model double power supply converting switch control circuit.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment
As shown in Figure 1, a kind of double power supply converting switch control circuit, double power supply converting switch includes controlling common electricity
The switching mechanism that source and stand-by power supply close a floodgate, switching mechanism connection motor, motor positive and inverse, which moves, to be driven switching mechanism to move to set
Positioning is put so that common power supply or stand-by power supply combined floodgate, common power supply and stand-by power supply are three-phase four-wire system power supply, in figure
NPower, NB and NC are respectively A, B, C three-phase of common power supply, and NN is the neutral conductor of common power supply, and RPower is stand-by power supply
A phases, RN be stand-by power supply the neutral conductor.MOTOR is socket, and socket MOTOR connection conversion motors, socket A/M connections are certainly
Dynamic/manual setting switchs, and 1 in socket MOTOR is connected with 3 in socket A/M, and it is public to rotate and reverse cathode as motor
Tie point, 2 in socket MOTOR positive pole tie points when being rotated forward for motor, 3 in socket MOTOR electricity when being motor reversal
Source anode tie point.
The double power supply converting switch control circuit of the present embodiment includes：
Rotate forward control unit：For motor to be controlled to rotate forward so that switching mechanism moves to common power supply closing position；
Invert control unit：For controlling motor reversal so that switching mechanism moves to stand-by power supply closing position；
Switch control unit：Control unit and reversion control are rotated forward for commonly using power supply and stand-by power supply abnormality detection and controlling
The switching of cell operation state processed, when common power supply is normal, switching mechanism switches to common power supply closing position, when common electricity
During the exception of source, switching mechanism switches to stand-by power supply power supply closing position, when common power supply and abnormal stand-by power supply, switching
Mechanism stops switching.
It rotates forward control unit and includes the first microswitch N_AUX, the first relay power supply branch and discharge delay rotating forward branch,
The connection of first microswitch N_AUX common ends commonly uses any one phase in power supply and as anode (this reality for rotating forward control unit
Apply example connection is the A phases of common power supply, i.e. NPower in figure), mains neutral line output terminal is commonly used as rotating forward control unit
Cathode, the first microswitch N_AUX common ends be also connected with the first relay power supply branch, the first relay power supply branch connection motor
Power supply terminal is rotated forward, the first microswitch N_AUX normal-closed ends rotate forward branch by discharge delay and are connected to the first relay power supply branch
Road, switch control unit connects the first relay power supply branch and discharge delay rotates forward branch；
Before switching mechanism does not move to common power supply closing position, the first microswitch N_AUX normal-closed ends are closed, switching control
Unit processed controls the power supply branch work of the first relay, and motor rotates forward；
After switching mechanism moves to common power supply closing position, the first microswitch normal-closed end is disconnected with common end, at this point,
If common power supply is normal, if common power supply is normal, discharge delay rotates forward branch output voltage and the first relay power supply branch is prolonged
Work late is until delay terminates, and then motor rotates forward until delay terminates；If common abnormity of power supply, switch control unit control
First relay power supply branch is stopped, while switch control unit control reversion control unit work, motor reversal, switching machine
Structure moves to stand-by power supply closing position.
First relay power supply branch includes the first relay K101, rotates forward control triode Q101, the first relay K101
The connection of coil one end rotates forward control unit anode, and the connection of the first relay K101 coils other end rotates forward control triode Q101 collection
Electrode rotates forward the emitting stage connection of control triode and rotates forward control unit cathode, rotates forward the base stage connection switching control of control triode
Unit, the normally-closed contact of the first switch of the first relay K101 is hanging, and the normally opened of the first switch of the first relay K101 touches
Point connection rotates forward control unit anode, and the normally-closed contact connection reversion control unit of the second switch of the first relay K101 is born
Pole, the normally opened contact connection of the second switch of the first relay K101 rotate forward control unit cathode.
Discharge delay rotates forward branch and includes multiple partial pressure electricity for being connected in series in and rotating forward between control unit anode and cathode
Resistance, the resistance both ends being directly connected to rotating forward control unit cathode are connected in parallel to the first capacitance E104, and the first capacitance E104 is just
Pole connects switch control unit.
It inverts control unit and includes the second microswitch R_AUX, the second relay power supply branch and discharge delay reversion branch,
Second microswitch R_AUX common ends connect any one phase in stand-by power supply and as anode (this realities of reversion control unit
Apply the A phases in example the second microswitch R_AUX common ends connection stand-by power supply), stand-by power supply neutrality line output terminal is as reversion
The cathode of control unit, the second microswitch R_AUX common ends are also connected with the second relay power supply branch, the second relay power supply branch
Connect motor reversal power supply terminal, the second microswitch R_AUX normal-closed ends by discharge delay invert branch be connected to second after
Electricity power supply branch, switch control unit connect the second relay power supply branch；
Common power supply no exceptions, switch control unit control the power supply branch locking of the second relay, the second power supply branch
It does not work；
Common power supply is abnormal, and switch control unit controls the second relay power supply branch to unlock, the second power supply branch
Road works, and motor reversal, switching mechanism moves to stand-by power supply closing position.
Second relay power supply branch includes the second relay K100, reversion control triode Q100, the second relay K100
Coil one end connection reversion control unit anode, second relay K100 coils other end connection reversion control triode Q100 collection
Electrode, reversion control triode emitting stage connection rotate forward control unit cathode, and reversion control triode base stage and emitter connect
Switch control unit is connect, the normally-closed contact of the first switch of the second relay K100 is hanging, and the first of the second relay K100 opens
The normally opened contact connection reversion control unit anode of pass, the normally-closed contact and normally opened contact of the second switch of the second relay K100
It is hanging.
Discharge delay reversion branch includes multiple partial pressure electricity being connected in series between reversion control unit anode and cathode
Resistance, the resistance both ends being directly connected to reversion control unit cathode are connected in parallel to the second capacitance E105, and the second capacitance E105 is just
Pole is connected to reversion control triode Q100 base stages, the second capacitance E105 cathode connection reversion control triode Q100 by resistance
Emitter.
Switch control unit includes the common power phase shortage detection for detecting whether common mains neutral point voltage is zero
Module, common control output end mouthful and spare locking output port commonly use the common mains neutral of power phase shortage detection module connection
Point, common control output end mouthful setting two is respectively that P11 and P12, P11 and P12 are respectively connected to rotate forward control unit, spare
It is respectively that P21 and P22, P21 and P22 are respectively connected to reversion control unit, P11 connections first that locking output port, which sets two,
Capacitance E104 anodes, P12 connections rotate forward the base stage of control triode Q101, the base of P21 connections reversion control triode Q100
Pole, the emitter of P22 connections reversion control triode Q100；
When common power phase shortage detection module is detected when common mains neutral point voltage is zero, (i.e. common power supply does not lack
Phase fault), P11 and P12 conductings, P21 and P22 conductings, reversion control triode Q100 base voltage pressures drag down, reversion control
Unit locks；
When common power phase shortage detection module is detected when common mains neutral point voltage is non-zero, (common power supply occurs to lack
Phase fault), P11 and P12 are disconnected, and P12 is low level, and rotating forward control triode Q101 can not work, and invert control triode
Q100 ON operations, reversion control unit work, switching mechanism switch to stand-by power supply position.
The operation principle of the present embodiment double power supply converting switch control circuit is as follows：
Common power supply three-phase NPower, NB, NC by the dropping resistor R116, R117 that connects, R119, R120, R122,
It is connected in parallel after R123, due to three-phase electricity, phase differs 120 degree between phase and phase, when three-phase voltage is essentially identical, passes through
The point that load (impedance is identical) links together is then neutral point, voltage zero.When having a phase in three-phase or two-phase lacks, phase
The balance of potential difference is broken, then neutral point voltage is not zero.Three-phase lack phase or Voltage unbalance signal are detected according to this principle to make
Signal in order to control for controlling the first relay K101, realizes the control of conversion motor.
Common power supply A phases are powered by element D100, E100, E101, R128, R102, R100 to the first relay K101,
E100 and E101 series connection increases capacitance pressure resistance, R128 and R102 for pressing.When switching mechanism is not transformed into common position of source
When, common power supply A phases by the first microswitch N_AUX common ends and normal-closed end be connected to D102, R104, R106, R112,
E104, C100, common control unit, Q101 realize by the first microswitch N_AUX controls the first relay K101 of driving to
The purpose of common position of source conversion.Before mechanism is transformed into common position of source, the first microswitch N_AUX normal-closed ends and public affairs
End disconnects altogether, and capacitance E104 continues to drive by resistance R112 and common control unit, rotating forward control triode Q101 electric discharges at this time
Dynamic first relay K101 until the electricity of the first capacitance E104 storages discharges, reaches the rotation of delay and running motor, makes electricity
Machine lead agency reliably converts purpose in place.
When common power supply is normal, reversion control triode Q100 cut-offs so as to which the second relay K100 cannot be attracted, are prevented
Only converted to stand-by power supply direction.
Similarly, stand-by power supply A phases (RPower) give second by element D101, E102, E103, R127, R103, R101
Relay K100 powers.When common abnormity of power supply, spare lock cell unlocks, and stand-by power supply A phases pass through microswitch R_
It is micro- by second that AUX common ends and normal-closed end are connected to D103, R105, R108, R111, E105, C102, R109, Q100 realization
The purpose that the second relay K100 of dynamic switch R_AUX control drivings is converted to stand-by power supply position.When switching mechanism be transformed into it is standby
Before position of source, the second microswitch R_AUX normal-closed ends are disconnected with common end, and the second capacitance E105 passes through resistance at this time
R111, R109 and reversion control triode Q100 electric discharges, continue that the first relay K101 is driven to be attracted, until the second capacitance E105
Until the electricity of storage discharges, achieve the purpose that the rotation of delay and running motor, motor lead agency is made reliably to convert in place.
Entirely the purpose of control circuit realization is：Common supply voltage is normal (no phase shortage and decompression are abnormal), then switch turns
Change to common position of source.When common supply voltage exception, then switch conversion to stand-by power supply position.When common and stand-by power supply
When voltage exists simultaneously abnormal, switch stops conversion.
Claims (8)
1. a kind of double power supply converting switch control circuit, the double power supply converting switch includes controlling common power supply and standby
The switching mechanism to be closed a floodgate with power supply, switching mechanism connection motor, the motor positive and inverse, which moves, drives switching mechanism fortune
Moving to setting position causes common power supply or stand-by power supply to close a floodgate, and the common power supply and stand-by power supply are three-phase four-wire system
Power supply, which is characterized in that the control circuit includes：
Rotate forward control unit：For motor to be controlled to rotate forward so that switching mechanism moves to common power supply closing position；
Invert control unit：For controlling motor reversal so that switching mechanism moves to stand-by power supply closing position；
Switch control unit：Control unit and reversion control list are rotated forward for commonly using power supply and stand-by power supply abnormality detection and controlling
The switching of first working condition, when common power supply is normal, switching mechanism switches to common power supply closing position, when common power supply is different
Chang Shi, switching mechanism switch to stand-by power supply power supply closing position, when common power supply and abnormal stand-by power supply, switching mechanism
Stop switching.
A kind of 2. double power supply converting switch control circuit according to claim 1, which is characterized in that the rotating forward control
Unit includes the first microswitch, the first relay power supply branch and discharge delay and rotates forward branch, and first microswitch is public
Any one phase in the common power supply of connection is held altogether and as the anode for rotating forward control unit, commonly use mains neutral line output terminal conduct
Rotate forward control unit cathode, the first microswitch common end be also connected with the first relay power supply branch, described first
Relay power supply branch connection motor rotates forward power supply terminal, and the first microswitch normal-closed end rotates forward branch by discharge delay
The first relay power supply branch is connected to, the switch control unit connects the first relay power supply branch and discharge delay rotates forward branch
Road.
A kind of 3. double power supply converting switch control circuit according to claim 2, which is characterized in that first relay
Branch of powering includes the first relay, rotates forward control triode, and the connection of first relay coil one end rotates forward control unit anode,
The connection of the first relay coil other end rotates forward control transistor collector, rotates forward the emitting stage connection of control triode and rotates forward control
Unit cathode, rotates forward control triode base stage connection switch control unit, and the normally-closed contact of the first switch of the first relay hangs
Sky, the normally opened contact connection of the first switch of the first relay rotate forward control unit anode, the second switch of the first relay
Normally-closed contact connection reversion control unit cathode, the normally opened contact connection of the second switch of the first relay rotate forward control unit and bear
Pole.
A kind of 4. double power supply converting switch control circuit according to claim 2, which is characterized in that the discharge delay
It rotates forward branch and includes multiple divider resistances for being connected in series in and rotating forward between control unit anode and cathode, with rotating forward control unit
The resistance both ends that cathode is directly connected to are connected in parallel to the first capacitance, first capacitance cathode connection switch control unit.
A kind of 5. double power supply converting switch control circuit according to claim 1, which is characterized in that the reversion control
It is public that unit includes the second microswitch, the second relay power supply branch and discharge delay reversion branch, second microswitch
Any one phase in connection stand-by power supply is held altogether and as the anode of reversion control unit, stand-by power supply neutrality line output terminal conduct
Invert control unit cathode, the second microswitch common end be also connected with the second relay power supply branch, described second
Relay power supply branch connection motor reversal power supply terminal, the second microswitch normal-closed end invert branch by discharge delay
The second relay power supply branch is connected to, the switch control unit connects the second relay power supply branch.
A kind of 6. double power supply converting switch control circuit according to claim 5, which is characterized in that second relay
Branch of powering includes the second relay, reversion control triode, and second relay coil one end connects reversion control unit anode,
Second relay coil other end connection reversion control transistor collector, reversion control triode emitting stage connection rotate forward control
Unit cathode, reversion control triode base stage and emitter are all connected with switch control unit, the first switch of the second relay
Normally-closed contact is hanging, the normally opened contact connection reversion control unit anode of the first switch of the second relay, the second relay
The normally-closed contact and normally opened contact of second switch are hanging.
A kind of 7. double power supply converting switch control circuit according to claim 6, which is characterized in that the discharge delay
Reversion branch includes multiple divider resistances being connected in series between reversion control unit anode and cathode, with inverting control unit
The resistance both ends that cathode is directly connected to are connected in parallel to the second capacitance, and second capacitance cathode is connected to reversion by resistance
Control transistor base, the second capacitance cathode connection reversion control transistor emitter.
A kind of 8. double power supply converting switch control circuit according to claim 1, which is characterized in that switch control unit packet
Include for detect common power phase shortage detection module that whether common mains neutral point voltage is zero, common control output end mouthful and
Spare locking output port, the common mains neutral point of common power phase shortage detection module connection, the common control
Output port sets two and is respectively connected to rotate forward control unit, and the spare locking output port sets two and difference
It is connected to reversion control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721356684.4U CN207504634U (en) | 2017-10-20 | 2017-10-20 | A kind of double power supply converting switch control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721356684.4U CN207504634U (en) | 2017-10-20 | 2017-10-20 | A kind of double power supply converting switch control circuit |
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| Publication Number | Publication Date |
|---|---|
| CN207504634U true CN207504634U (en) | 2018-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721356684.4U Active CN207504634U (en) | 2017-10-20 | 2017-10-20 | A kind of double power supply converting switch control circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166744A (en) * | 2018-10-24 | 2019-01-08 | 南宁安普电力设备有限公司 | A kind of double power supply automatic transfer switch and its switching control method |
-
2017
- 2017-10-20 CN CN201721356684.4U patent/CN207504634U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166744A (en) * | 2018-10-24 | 2019-01-08 | 南宁安普电力设备有限公司 | A kind of double power supply automatic transfer switch and its switching control method |
| CN109166744B (en) * | 2018-10-24 | 2024-03-22 | 广西安裕普电力科技有限公司 | Dual-power automatic transfer switch and transfer control method thereof |
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