CN208239919U - A kind of alternating current-direct current variable voltage source - Google Patents
A kind of alternating current-direct current variable voltage source Download PDFInfo
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- CN208239919U CN208239919U CN201820825529.0U CN201820825529U CN208239919U CN 208239919 U CN208239919 U CN 208239919U CN 201820825529 U CN201820825529 U CN 201820825529U CN 208239919 U CN208239919 U CN 208239919U
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Abstract
The utility model discloses a kind of alternating current-direct current variable voltage sources, including AC power interface, air switch, Regulation Control unit, at least one exchange output unit and at least one DC output unit, AC power interface is connect by air switch with the ac input end of the Regulation Control unit, the pressure regulation output end of Regulation Control unit is connect with exchange output unit and DC output unit respectively, the Regulation Control unit includes that single-phase self-coupling pressure regulator and voltage adjust change-over switch, AC power interface is connect by air switch with the input terminal of the single-phase self-coupling pressure regulator, the pressure regulation of single-phase self-coupling pressure regulator exports the defeated input terminal for adjusting change-over switch with the voltage respectively and connect.The variable voltage source of the utility model exports corresponding voltage source in exchange output wiring terminal or direct current output connecting terminal；When occurring electric voltage exception in adjustment process, alternating current supply can be cut off and protect this adjustable device injury-free to improve the safety operation performance of test.
Description
Technical field
The utility model belongs to electrical test power technique fields more particularly to a kind of alternating current-direct current variable voltage source.
Background technique
For being played a crucial role in the alternating current-direct current pressure test of power switchgear, and in numerous cumbersome electricity
In gas pilot project, required power supply type is not also identical in the project tested every time, and some pilot projects need to connect
AC power source is connect, some pilot projects need to connect DC power supply, and the power of alterating and direct current needed for testing both is from various power transformations
System, the voltage source degree of regulation of output is low, speed regulation is slow, high noise, and cannot be adjusted according to the size of required voltage,
And malfunction is easy to appear in adjustment process, and higher to testing crew Capability Requirement, once there is short circuit now in test
As when, it will transformer substation system is caused greatly to lose, in addition, electrical test personnel are during the test, due to working site
Many and diverse, security error is not in place, testing crew awareness of safety is not strong etc., and reasons cause the accident of personnel frequently to occur, and seriously affect
The personal safety of experimental work personnel, reduces working efficiency.
Utility model content
The purpose of this utility model is to provide a kind of alternating current-direct current variable voltage source, the variable voltage source of the utility model exists
It exchanges output wiring terminal or direct current output connecting terminal exports corresponding voltage source；Occurs electric voltage exception in adjustment process
When, alternating current supply can be cut off, to improve the safety operation performance of test, protect this adjustable device injury-free, to realize
Above-mentioned technical proposal, the utility model use following technical effect:
According to the one aspect of this hair utility model, a kind of alternating current-direct current variable voltage source is provided, including AC power source connects
Mouth, current-limiting protection control unit, Regulation Control unit, at least one exchange output unit and at least one direct current output list
Member, the AC power interface are connected by the ac input end of input current-limiting protection control unit and the Regulation Control unit
It connects, the pressure regulation output end of the Regulation Control unit is connect with the exchange output unit and DC output unit respectively, described
Current-limiting protection control unit includes air switch, and the Regulation Control unit includes that single-phase self-coupling pressure regulator and voltage adjust conversion
Switch, the AC power interface are connect by air switch with the input terminal of the single-phase self-coupling pressure regulator, it is described it is single-phase oneself
The pressure regulation of coupling pressure regulator exports the defeated input terminal for adjusting change-over switch with the voltage respectively and connect, and the voltage adjusts conversion and opens
The output of pass is connect with exchange output unit and DC output unit respectively, to realize at least one set of alternating-current voltage source and at least
One group of DC voltage source output.
Preferably, the exchange output unit includes the exchange display device being connected in parallel with each other and exchange outlet terminal
Son, the DC output unit include single-phase rectifier module, direct current acquisition control module and direct current output connecting terminal, the sky
Air cock also passes through Regulation Control unit and the ac output end of voltage adjusting change-over switch exchanges display device with described respectively
It is electrically connected with output wiring terminal is exchanged；The DC output end of the voltage adjusting change-over switch and the single-phase rectifier module
Ac input end connection, the DC output end of the single-phase rectifier module are defeated with the direct current acquisition control module and direct current respectively
Connecting terminal is electrically connected out.
Preferably, the Regulation Control unit is including further including A.C. contactor, voltage relay, electric current relay, limit
Bit switch, normally closed push button switch, normally open push button switch, the first intermediate relay, the second intermediate relay, the first indicator light,
Two indicator lights, third indicator light and the 4th indicator light；The cathode output end and cathode output end of the air switch pass through respectively
The master control contact for stating A.C. contactor is connect with the first input end of the single-phase self-coupling pressure regulator and the second input terminal, the list
Second input terminal of phase automatic coupling voltage regulator also adjusts the 6th input terminal of change-over switch with the voltage respectively, voltage is adjusted and converted
Switch the 8th input terminal and voltage relay one end electrical connection, the cathode output end of the air switch respectively with it is normally closed
One end of button switch, one end of the second normally-closed contact of A.C. contactor, A.C. contactor third normally opened contact one end,
The normally opened touching of one end of the normally opened contact of electric current relay, one end of the normally opened contact of the first intermediate relay, voltage relay
One end electrical connection of the normally opened contact of point and the second intermediate relay, the adjusting output end difference of the single-phase self-coupling pressure regulator
The 8th input terminal for adjusting change-over switch with one end of voltage relay, the other end of electric current relay and voltage is electrically connected,
The voltage adjusts the first input end of change-over switch and voltage adjust the 7th input terminal of change-over switch respectively with it is parallel with one another
The exchange display device of connection adjusts the third input terminal of change-over switch with output wiring terminal electrical connection, the voltage is exchanged
With voltage adjust change-over switch the 5th output end by single-phase rectifier module respectively with the direct current acquisition control module and directly
Flow output wiring terminal electrical connection；
The other end of the normally closed push button switch respectively with one end of the normally open push button switch and A.C. contactor
One end of one normally opened contact connects, the other end of normally open push button switch by limit switch respectively with one end of A.C. contactor,
The other end of first normally opened contact of A.C. contactor connects, and the other end of A.C. contactor passes through the normal of the first intermediate relay
Closed contact is connect with the cathode output end of the air switch；The other end of second normally-closed contact of the A.C. contactor passes through
First indicator light is connect with the cathode output end of the air switch, and the other end of the third normally opened contact of A.C. contactor passes through
Second indicator light is connect with the cathode output end of the air switch；In the other end of the normally opened contact of electric current relay and first
Between relay normally opened contact other end connection after one end with one end of the first intermediate relay and third indicator light respectively
Connection, the other end of intermediate relay and the other end of third indicator light are connect with the cathode output end of the air switch；Electricity
The other end of the normally opened contact of potential relay connect with the other end of the normally opened contact of the second intermediate relay after respectively with second
One end of intermediate relay is connected with one end of the 4th indicator light, the other end of the second intermediate relay and the 4th indicator light it is another
One end is connect with the cathode output end of the air switch
Above scheme is it is further preferred that the output voltage that adjusts of the single-phase self-coupling pressure regulator (1TC) is 0-250V's
Alternating voltage.
Above scheme is it is further preferred that the direct current acquisition control module includes D.C. voltmeter and potentiometer R0, institute
State the cathode output end of single-phase rectifier module respectively with the anode of the direct current output connecting terminal, D.C. voltmeter anode and
One end of potentiometer R0 connects, and the cathode of D.C. voltmeter is connect with potentiometer R0 center adjustment end, and the potentiometer R0's is another
One end is connect with the cathode output end of the cathode of the direct current output connecting terminal and single-phase rectifier module.
Above scheme is it is further preferred that the direct current acquisition control module includes D.C. voltmeter, inductance L1, capacitor
C1, capacitor C2, capacitor C3, resistance R2, adjustable resistance R1, silicon-controlled D1 and diode D2, the D.C. voltmeter, inductance L1,
Capacitor C1, the cathode output end of the single-phase rectifier module respectively with the anode of the D.C. voltmeter, one end of inductance L1, electricity
Hold C1 anode connection, the other end of the inductance L1 respectively with one end of the capacitor C2, direct current output connecting terminal just
The anode connection of pole output end, silicon-controlled D1, cathode output end, the direct current of the cathode of silicon-controlled D1 and the single-phase rectifier module
Voltmeter) cathode, the cathode of capacitor C1, the other end of capacitor C2 connected with the cathode output end of direct current output connecting terminal,
The other end of the adjustable resistance R1 is connect with the anode of diode D2, the cathode of the diode D2 respectively with the one end resistance R2
It is connected with one end of capacitor C3, the other end of the other end and capacitor C3 of the control electrode of the silicon-controlled D1 and the resistance R2 connects
It connects.
Above scheme is it is further preferred that the alternating voltage that the voltage of alternating-current voltage source output is 0-250V, direct current
The direct current that the voltage of voltage source output is 0-230V.
In conclusion the utility model has following technical effect that since the utility model uses above-mentioned technical proposal
(1), the utility model by adjust voltage adjust change-over switch and single-phase self-coupling pressure regulator 1TC can exchange it is defeated
Connecting terminal or direct current output connecting terminal export corresponding voltage source out；When occurring electric voltage exception in adjustment process, it can be cut off
Alternating current supply protects this adjustable device injury-free to improve the safety operation performance of test.
(2), the utility model is during DC adjustment, by that can reduce alternating current-direct current component proportion after filtering, due to electricity
When the appearance of potential source is excessive or short-circuit, automatically starting voltage-stabilizing protection simultaneously carries out rapid overpressure protection, prevents DC load because of mistake
It presses and damages, and the size that can adjust voltage source output in real time is mentioned into automatic protection, and for DC load (by test device)
For burning voltage, and voltage-stabilizing protection is simple, and device is few, at low cost, high-efficient.
Detailed description of the invention
Fig. 1 is a kind of functional block diagram of alternating current-direct current variable voltage source of the utility model；
Fig. 2 is a kind of working principle diagram of alternating current-direct current variable voltage source first embodiment of the utility model；
Fig. 3 is a kind of working principle diagram of alternating current-direct current variable voltage source second embodiment of the utility model；
Fig. 4 is a kind of work of the direct current acquisition control module of alternating current-direct current variable voltage source second embodiment of the utility model
Make schematic diagram.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, referring to the drawings and enumerate excellent
Embodiment is selected, the utility model is further described.However, it is necessary to illustrate, many details listed in specification
It is specific even without these just for the sake of making reader have a thorough explanation to the one or more aspects of the utility model
Details also may be implemented the utility model these aspect.
As depicted in figs. 1 and 2, a kind of alternating current-direct current variable voltage source according to the present utility model, including AC power interface,
Current-limiting protection control unit, Regulation Control unit, at least one exchange output unit and at least one DC output unit, are handed over
Galvanic electricity source interface is AC socket interface, and mains supply is accessed from AC socket interface, and the AC power interface passes through input
Current-limiting protection control unit is connect with the ac input end of the Regulation Control unit, the pressure regulation output of the Regulation Control unit
End is connect with the exchange output unit and DC output unit respectively, and the current-limiting protection control unit includes air switch
1QF, the Regulation Control unit include that single-phase self-coupling pressure regulator 1TC and voltage adjust AC power interface described in change-over switch SA
It is connect by air switch 1QF with the input terminal of the single-phase self-coupling pressure regulator 1TC, the tune of the single-phase self-coupling pressure regulator 1TC
The defeated input terminal for adjusting change-over switch SA with the voltage respectively of pressure output is connect, and the voltage adjusts the output of change-over switch SA
It is connect respectively with exchange output unit and DC output unit, to realize at least one set of alternating-current voltage source and at least one set of direct current
Voltage source output；
The exchange output unit includes the exchange display device being connected in parallel with each other and exchange output wiring terminal, described
DC output unit includes single-phase rectifier module, direct current acquisition control module and direct current output connecting terminal, the air switch
1QF also pass through Regulation Control unit and voltage adjust the ac output end of change-over switch SA respectively with it is described exchange display device and
Exchange output wiring terminal electrical connection；The DC output end of the voltage adjusting change-over switch SA and the single-phase rectifier module
Ac input end connection, the DC output end of the single-phase rectifier module are defeated with the direct current acquisition control module and direct current respectively
Connecting terminal is electrically connected out, the alternating voltage that the adjusting output voltage of the single-phase self-coupling pressure regulator 1TC is 0-250V, described
The voltage source for exchanging output wiring terminal output is the alternating voltage of 0-250V, and the voltage source of direct current output connecting terminal output is
The DC voltage of 0-230V, the single-phase rectifier module is by diode 1V1, diode 1V2, diode 1V3 and diode 1V4 group
At rectifier bridge.
In the present invention, as depicted in figs. 1 and 2, the Regulation Control unit is including further including A.C. contactor
1KM0, voltage relay 1KV, electric current relay 1KA, limit switch S1, normally closed push button switch 1SB1, normally open push button switch
1SB2, the first intermediate relay 1K, the second intermediate relay 2K, the first indicator light 1HG, the second indicator light 1HR, third indicator light
1HY and the 4th indicator light 2HY；The cathode output end (end 1a) and cathode output end (end 2b) of the air switch 1QF leads to respectively
Cross the first input end for stating the master control contact 1KM and the single-phase self-coupling pressure regulator 1TC of A.C. contactor 1KM0 and the second input
End connection, the second input terminal of the single-phase self-coupling pressure regulator 1TC also adjust the 6th of change-over switch SA with the voltage respectively
Input terminal, voltage adjust one end electrical connection of the 8th input terminal and voltage relay 1KV of change-over switch SA, and the air is opened
Close cathode output end the second normally-closed contact with one end of normally closed push button switch 1SB1, A.C. contactor 1KM0 respectively of 1QF
One end of 1KM-2, one end of the third normally opened contact 1KM-3 of A.C. contactor 1KM0, electric current relay 1KA normally opened contact
One end of 1KA-1, one end of the normally opened contact 1K-2 of the first intermediate relay 1K, voltage relay 1KV normally opened contact KV-1
One end and the second intermediate relay 2K normally opened contact 2K-1 one end electrical connection, the single-phase self-coupling pressure regulator 1TC's
It adjusts output end and adjusts change-over switch SA with one end of voltage relay 1KV, the other end of electric current relay 1KA and voltage respectively
The electrical connection of the 8th input terminal, the voltage adjusts the first input end of change-over switch SA and voltage adjusts change-over switch SA's
7th input terminal exchanges display device and exchange output wiring terminal electrical connection, the voltage with what is be connected in parallel with each other respectively
The 5th output end that the third input terminal and voltage for adjusting change-over switch SA adjust change-over switch SA passes through single-phase rectifier module point
It is not electrically connected with the direct current acquisition control module and direct current output connecting terminal；The normally closed push button switch 1SB1's is another
End connects with one end of the normally open push button switch 1SB2 and one end of the first normally opened contact 1KM-1 of A.C. contactor 1KM0 respectively
Connect, the other end of normally open push button switch 1SB2 by limit switch S1 respectively with one end of A.C. contactor 1KM0, ac contactor
The other end of the first normally opened contact 1KM-1 of device 1KM0 connects, and the other end of A.C. contactor 1KM0 passes through the first intermediate relay
The normally-closed contact 1K-1 of device 1K is connect with the cathode output end of the air switch 1QF；The second of the A.C. contactor 1KM0
The other end of normally-closed contact 1KM-2 is connect by the first indicator light 1HG with the cathode output end of the air switch 1QF, is exchanged
The other end of the third normally opened contact 1KM-3 of contactor 1KM0 is negative by the second indicator light 1HR and air switch 1QF's)
The connection of pole output end；The normally opened contact of the other end of the normally opened contact 1KA-1 of electric current relay 1KA and the first intermediate relay 1K
It is connect respectively with one end of one end of the first intermediate relay 1K and third indicator light 1HY after the other end connection of 1K-2, it is intermediate
The other end of relay 1K and the other end of third indicator light 1HY are connect with the cathode output end of the air switch 1QF, voltage
The other end of the normally opened contact 1KV-1 of relay 1KV is connect with the other end of the normally opened contact 2K-1 of the second intermediate relay 2K
It is connect respectively with one end of one end of the second intermediate relay 2K and the 4th indicator light 2HY afterwards, the second intermediate relay 2K's is another
The other end of one end and the 4th indicator light 2HY are connect with the cathode output end of the air switch 1QF.
In the present invention, as depicted in figs. 1 and 2 since single-phase self-coupling pressure regulator 1TC has the handwheel manually adjusted,
After the handwheel of single-phase self-coupling pressure regulator 1TC is first adjusted to null positions, as closure air switch QF1 and A.C. contactor 1KM0
Master control contact 1KM when, the first indicator light 1HG is off and the second indicator light 1HR be lit expression start adjust test,
The limit switch S1 closure on handwheel is invested, at this moment presses normally open push button switch 1SB2, the first of A.C. contactor 1KM0 is normally opened
Contact 1KM-1 starting carried out after being attracted it is self-locking, as slowly turn (adjusting) single-phase self-coupling pressure regulator 1TC, to make secondary
The voltage of generation also just slowly rises, and the normally opened contact KV-1 of voltage relay 1KV, which is attracted, at this time connects, the second intermediate relay
The normally opened contact 2K-1 of device 2K is attracted self-locking, and the normally opened contact 1KV-1 of voltage relay 1KV, which is attracted, to be connected, and third refers to
Showing that lamp 2HY is shinny indicates corresponding voltage relay contact closure operation, when the electric current exported to single-phase self-coupling pressure regulator 1TC reaches
To certain or when going beyond the scope, master control contact 1KM power loss of contactor 1KM0, the at this time normally opened touching of the first of A.C. contactor 1KM0
Point 1KM-1 and third normally opened contact 1KM-3 is disconnected, the first normally opened contact 1KM-2 is closed, and the first indicator light 1HG is lit
And second indicator light 1HR be off expression stop adjust test, at the same time, the power supply of single-phase self-coupling pressure regulator 1TC is broken
It opening, causes the secondary leakage current of single-phase self-coupling pressure regulator 1TC necessarily excessive, electric current relay 1KA also follows overcurrent and acts,
Electric current relay 1KA is attracted, its normally opened contact 1KV-1 is disconnected after voltage relay 1KV power loss, and electric current relay 1KA's is normal
Open contact 1KA-1 closure, the first intermediate relay 1K normally-closed contact 1K1-1 closure and the second intermediate relay 2K it is normally opened
Contact 2K-1 is disconnected rapidly, and third indicator light 1HY is lit at this time, and the 4th indicator light 2HY is off, and indicates to stop adjusting examination
Test, can quickly judge in this way power supply source output voltage condition, can also judge simultaneously ac output end occur short circuit or other
Failure effectively improves the timeliness for disconnecting power supply, ensure that greatest extent can so that ac output end be made to be effectively protected
Voltage source is adjusted not to be damaged, and operating process is convenient, the voltage source of output is also convenient for observing.In the present invention, empty
Air cock QF1 connected after being connected on single phase ac alternating current bus the primary input terminal into the single-phase self-coupling pressure regulator 1TC with
And in Regulation Control unit, play the role of the entire output terminal of protection.When the adjustable side for adjusting single-phase self-coupling pressure regulator 1TC
When, while adjusting voltage and adjusting change-over switch SA, it can get in the output end for adjusting voltage adjusting change-over switch SA corresponding defeated
Voltage source out, the voltage source mode exported when specifically adjusting are as shown in table 1:
Table 1: change-over switch SA contact energization table
Table 1 respectively illustrates gear, contact number and the on-state that voltage adjusts change-over switch SA, and "×" indicates touching
Point is connected, otherwise to disconnect, in table 1, and when voltage, which adjusts change-over switch SA, beats 45 ° to the right, contact 1-2,7-8 closure,
He opens contact, and the alternating voltage that voltage adjusts change-over switch SA output at this time is sent into exchange output wiring terminal X10 and X11
Both ends and the both ends for exchanging display device (A.C. voltmeter PV1) carry out the voltage swing of detection output, and defeated by exchanging
Connecting terminal X10 and X11 provides alternating-current voltage source for external equipment out；When beating to 0 °, all contacts are in the open state.When
The switch position that voltage adjusts change-over switch SA beat to the left 45 ° when, contact 3-4,5-6 closure, other contacts opening, voltage at this time
The rectified output of two input terminals to the direct current for adjusting the alternating voltage feeding single-phase rectifier module of change-over switch SA output acquires
Control module and the electrical connection of direct current output connecting terminal, in the present invention, the direct current acquisition control module includes straight
Ampere-voltage meter PV2 and potentiometer R0, the cathode output end of the single-phase rectifier module respectively with the direct current output connecting terminal
Anode, D.C. voltmeter PV2 anode connected with one end of potentiometer R0, the cathode of D.C. voltmeter PV2 and potentiometer R0
The connection of center adjustment end, the cathode and single-phase rectifier module of the other end of the potentiometer R0 and the direct current output connecting terminal
Cathode output end connection, when adjust single-phase self-coupling pressure regulator 1TC be fixed on a certain voltage output when, by constantly regulate current potential
The size of device R0, so that potentiometer R0 can be removed in practical applications by further adjusting the size of DC voltage source output,
Directly D.C. voltmeter PV2 is connected between two output ends of single-phase rectifier module, it then can be real using D.C. voltmeter PV2
When vision-control output voltage source size, then provide direct current by direct current output connecting terminal X20 and X21 for external equipment
Potential source.
In the present invention, in conjunction with shown in Fig. 1, Fig. 3 and Fig. 4, as another implementation of the utility model, the direct current
Acquisition control module include D.C. voltmeter PV2, inductance L1, capacitor C1, capacitor C2, capacitor C3, resistance R2, adjustable resistance R1,
Bidirectional triode thyristor D1 and diode D2, the D.C. voltmeter PV2, inductance L1, capacitor C1, the anode of the single-phase rectifier module
Output end is connect with the anode of the anode of the D.C. voltmeter PV2, one end of inductance L1, capacitor C1 respectively, the inductance L1
The other end respectively with the anode of one end of the capacitor C2, the cathode output end of direct current output connecting terminal, silicon-controlled D1 connect
It connects, the cathode of silicon-controlled D1 and the cathode output end of the single-phase rectifier module, the cathode of D.C. voltmeter PV2, capacitor C1
Cathode, capacitor C2 the other end connected with the cathode output end of direct current output connecting terminal, the other end of the adjustable resistance R1
It is connect with the anode of diode D2, the cathode of the diode D2 is connect with one end of the one end resistance R2 and capacitor C3 respectively, institute
The control electrode for stating silicon-controlled D1 is connect with the other end of the other end of the resistance R2 and capacitor C3, when single-phase self-coupling pressure regulator
1TC adjusts the voltage of output by diode 1V1, diode 1V2, diode 1V3 and the diode 1V4 in single-phase rectifier module
When being rectified, a large amount of AC and DC ingredient is contained in voltage source signal, the output end of single-phase rectifier module passes through by electricity
Feel the π type LC filter circuit of L1, capacitor C1, capacitor C2 composition, road generates direct current, and suitable inductance and capacitor can filter out letter
Noise in number, and smooth output voltage source signal.When the voltage of single-phase rectifier module output is after filtering, voltage does not surpass
The upper limit for crossing voltage-stabilizing protection, when being not enough to breakdown diode D2, diode D2 does not work, and can not touch to the control electrode of silicon-controlled D1
Power generation pressure, bidirectional triode thyristor D1 is silicon-controlled to be not turned on, then direct current output connecting terminal X20 and X21 provides direct current for external equipment
Voltage source is in a safe condition.When the voltage of single-phase rectifier module output is after filtering, voltage is more than the upper of voltage-stabilizing protection
In limited time (when such as short circuit occurs in External Test Equipment), (size of adjustable current limliting), breakdown two after adjustable resistance R1 current limliting
Pole pipe D2 and be connected, using resistance R2 partial pressure and capacitor C3 decompression energy storage after, bidirectional triode thyristor D1 work conducting, make output
DC voltage enters voltage-stabilizing protection state, since stored electric energy of the DC voltage source of output itself will not be by protection circuit
It loses, decompression is had been carried out by bidirectional triode thyristor D1 work conducting, when the both ends of direct current output connecting terminal X20 and X21
Voltage fed back again through resistance R1 to breakdown diode D2, when bidirectional triode thyristor D1 conducting cannot be triggered, bidirectional triode thyristor
D1 is closed, and such cyclic plays the role of pressure limiting and protection, so that more safety can during making alternating current-direct current pressure test
It leans on.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, can also make several improvements and retouch, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of alternating current-direct current variable voltage source, it is characterised in that: including AC power interface, current-limiting protection control unit, pressure regulation
Control unit, at least one exchange output unit and at least one DC output unit, the AC power interface pass through limit
Stream protection control unit is connect with the ac input end of the Regulation Control unit, the pressure regulation output end of the Regulation Control unit
It is connect respectively with the exchange output unit and DC output unit, the current-limiting protection control unit includes air switch
(1QF), the Regulation Control unit include that single-phase self-coupling pressure regulator (1TC) and voltage adjust change-over switch (SA), the exchange
Power interface is connect by air switch (1QF) with the input terminal of the single-phase self-coupling pressure regulator (1TC), the single-phase self-coupling tune
The defeated input terminal for adjusting change-over switch (SA) with the voltage respectively of pressure regulation output of depressor (1TC) is connect, and the voltage is adjusted
The output of change-over switch (SA) is connect with exchange output unit and DC output unit respectively, to realize at least one set of alternating current
Potential source and at least one set of DC voltage source output.
2. a kind of alternating current-direct current variable voltage source according to claim 1, it is characterised in that: the exchange output unit includes
The exchange display device being connected in parallel with each other with to exchange output wiring terminal, the DC output unit include single-phase rectifier mould
Block, direct current acquisition control module and direct current output connecting terminal, the air switch (1QF) also pass through Regulation Control unit and electricity
Pressure adjust change-over switch (SA) ac output end respectively with it is described exchange display device and exchange output wiring terminal electrically connect
It connects；The DC output end that the voltage adjusts change-over switch (SA) is connect with the single-phase rectifier module ac input end, described
The DC output end of single-phase rectifier module is electrically connected with the direct current acquisition control module and direct current output connecting terminal respectively.
3. a kind of alternating current-direct current variable voltage source according to claim 2, it is characterised in that: the Regulation Control unit includes
It further include A.C. contactor (1KM0), voltage relay (1KV), electric current relay (1KA), limit switch (S1), normally closed button
Switch (1SB1), normally open push button switch (1SB2), the first intermediate relay (1K), the second intermediate relay (2K), the first instruction
Lamp (1HG), the second indicator light (1HR), third indicator light (1HY) and the 4th indicator light (2HY)；The air switch (1QF)
Cathode output end and cathode output end respectively by state A.C. contactor (1KM0) master control contact (1KM) and the single-phase self-coupling
The first input end of pressure regulator (1TC) and the connection of the second input terminal, the second input terminal of the single-phase self-coupling pressure regulator (1TC) is also
The 6th input terminal of change-over switch (SA) is adjusted with the voltage respectively, voltage adjust change-over switch (SA) the 8th input terminal and
One end of voltage relay (1KV) is electrically connected, the cathode output end of the air switch (1QF) respectively with normally closed push button switch
The one end of (1SB1), one end of the second normally-closed contact (1KM-2) of A.C. contactor (1KM0), A.C. contactor (1KM0)
One end of three normally opened contacts (1KM-3), one end of the normally opened contact (1KA-1) of electric current relay (1KA), the first intermediate relay
One end of the normally opened contact (1K-2) of (1K), the normally opened contact (KV-1) of voltage relay (1KV) and the second intermediate relay
One end of the normally opened contact (2K-1) of (2K) is electrically connected, the adjusting output end of the single-phase self-coupling pressure regulator (1TC) respectively with
One end of voltage relay (1KV), the other end of electric current relay (1KA) and voltage adjust the 8th input of change-over switch (SA)
End electrical connection, the voltage adjusts the first input end of change-over switch (SA) and voltage adjusts the 7th defeated of change-over switch (SA)
Enter end and exchange display device and exchange output wiring terminal electrical connection with what is be connected in parallel with each other respectively, the voltage, which is adjusted, to be turned
The 5th output end that the third input terminal and voltage for changing switch (SA) adjust change-over switch (SA) is distinguished by single-phase rectifier module
It is electrically connected with the direct current acquisition control module and direct current output connecting terminal；
The other end of the normally closed push button switch (1SB1) connects with one end of the normally open push button switch (1SB2) and exchanging respectively
One end of the first normally opened contact (1KM-1) of tentaculum (1KM0) connects, and the other end of normally open push button switch (1SB2) passes through limit
Switch first normally opened contact (1KM-1) of (S1) respectively with one end of A.C. contactor (1KM0), A.C. contactor (1KM0)
Other end connection, normally-closed contact (1K-1) and institute of the other end of A.C. contactor (1KM0) by the first intermediate relay (1K)
State the cathode output end connection of air switch (1QF)；The second normally-closed contact (1KM-2) of the A.C. contactor (1KM0) it is another
One end is connect by the first indicator light (1HG) with the cathode output end of the air switch (1QF), A.C. contactor (1KM0)
The other end of third normally opened contact (1KM-3) passes through the cathode output end of the second indicator light (1HR) and the air switch (1QF)
Connection；The other end of the normally opened contact (1KA-1) of electric current relay (1KA) and the normally opened contact of the first intermediate relay (1K)
Connect respectively with one end of the first intermediate relay (1K) and one end of third indicator light (1HY) after the other end connection of (1K-2)
It connects, the cathode of the other end and the air switch (1QF) of the other end and third indicator light (1HY) of intermediate relay (1K) is defeated
Outlet connection；The normally opened touching of the other end and the second intermediate relay (2K) of the normally opened contact (1KV-1) of voltage relay (1KV)
Connect respectively with one end of the second intermediate relay (1K) and one end of the 4th indicator light (2HY) after the other end connection of point (1K-1)
It connects, the other end of the other end of the second intermediate relay (2K) and the 4th indicator light (2HY) and bearing for the air switch (1QF)
The connection of pole output end.
4. a kind of alternating current-direct current variable voltage source according to claim 1 or 3, it is characterised in that: the single-phase self-coupling pressure regulation
Device (1TC) adjusts the alternating voltage that output voltage is 0-250V.
5. a kind of alternating current-direct current variable voltage source according to claim 2 or 3, it is characterised in that: the direct current acquisition control
Module includes D.C. voltmeter (PV2), inductance L1, capacitor C1, capacitor C2, capacitor C3, resistance R2, adjustable resistance R1, silicon-controlled
D1 and diode D2, the D.C. voltmeter (PV2), inductance L1, capacitor C1, the cathode output end point of the single-phase rectifier module
It is not connect with the anode of the anode of the D.C. voltmeter (PV2), one end of inductance L1, capacitor C1, the inductance L1's is another
End is connect with the anode of one end of the capacitor C2, the cathode output end of direct current output connecting terminal, silicon-controlled D1 respectively, controllably
The cathode of silicon D1 and the cathode output end of the single-phase rectifier module, the cathode of D.C. voltmeter (PV2), capacitor C1 cathode,
The other end of capacitor C2 is connected with the cathode output end of direct current output connecting terminal, the other end of the adjustable resistance R1 and two poles
The anode of pipe D2 connects, and the cathode of the diode D2 is connect with one end of the one end resistance R2 and capacitor C3 respectively, described controllable
The control electrode of silicon D1 is connect with the other end of the other end of the resistance R2 and capacitor C3.
6. a kind of alternating current-direct current variable voltage source according to claim 1, it is characterised in that: the alternating-current voltage source output
Voltage is the alternating voltage of 0-250V, and the voltage of DC voltage source output is the direct current of 0-230V.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820825529.0U CN208239919U (en) | 2018-05-30 | 2018-05-30 | A kind of alternating current-direct current variable voltage source |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820825529.0U CN208239919U (en) | 2018-05-30 | 2018-05-30 | A kind of alternating current-direct current variable voltage source |
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| CN208239919U true CN208239919U (en) | 2018-12-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445953A (en) * | 2018-05-30 | 2018-08-24 | 南宁市高照电器有限责任公司 | A kind of alternating current-direct current variable voltage source |
| CN111751606A (en) * | 2020-05-21 | 2020-10-09 | 国家电网有限公司技术学院分公司 | Intelligent power regulation and control box and regulation and control method |
-
2018
- 2018-05-30 CN CN201820825529.0U patent/CN208239919U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445953A (en) * | 2018-05-30 | 2018-08-24 | 南宁市高照电器有限责任公司 | A kind of alternating current-direct current variable voltage source |
| CN111751606A (en) * | 2020-05-21 | 2020-10-09 | 国家电网有限公司技术学院分公司 | Intelligent power regulation and control box and regulation and control method |
| CN111751606B (en) * | 2020-05-21 | 2023-10-24 | 国家电网有限公司技术学院分公司 | Intelligent power supply regulation and control box and regulation and control method |
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Effective date of registration: 20190410 Address after: 530033 No. 4 Workshop, No. 11 Hongsheng Road, Jiangnan District, Nanning City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Xingqun Power Technology Co., Ltd. Address before: 530033 No. 11 Hongsheng Road, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: NANING GAOZHAO ELECTRICAL APPLIANCE CO., LTD. |
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