CN106300643B - The seamless switching circuit of three-phase full-automatic AC battery saving arrangement - Google Patents
The seamless switching circuit of three-phase full-automatic AC battery saving arrangement Download PDFInfo
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- CN106300643B CN106300643B CN201610833603.9A CN201610833603A CN106300643B CN 106300643 B CN106300643 B CN 106300643B CN 201610833603 A CN201610833603 A CN 201610833603A CN 106300643 B CN106300643 B CN 106300643B
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- switch
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- battery saving
- saving arrangement
- automatic
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/067—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems using multi-primary transformers, e.g. transformer having one primary for each AC energy source and a secondary for the loads
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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
-
- 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 invention discloses a kind of seamless switching circuit of three-phase full-automatic AC battery saving arrangement, which includes main circuit and control circuit.The three-phase full-automatic AC battery saving arrangement is to use the technological means such as seamless switching, three-phase equilibrium, intelligent pressure regulating, automatic capacity transfer to realize energy conservation, pressure stabilizing, improve the functions such as power supply quality.The main circuit is mainly made of pressure regulator, transformer and switch, by rationally controlling the closure switched in main circuit and disconnection sequence, realizes the seamless switching of battery saving arrangement bypass and power save mode.The control circuit is made of switching circuit, clock generating circuit, switch driving circuit, the switch of output drive signal drive control circuit, by the orderly closure of control circuit switch control main circuit switch and disconnection.The present invention can break down in battery saving arrangement and will affect load electricity consumption or automatically switch to mains-supplied in the case where further damaging to device, that is, realizes that energy conservation switches with non-energy-efficient automatic seamless, ensure that the safety and stability of power supply.
Description
Technical field
The present invention relates to the bypass switch technology fields of battery saving arrangement, are related specifically to a kind of three-phase full-automatic AC economize on electricity
The seamless switching circuit of device.
Background technique
Three-phase full-automatic AC battery saving arrangement is by technologies such as intelligent pressure regulating, automatic capacity transfer, three-phase equilibrium, efficiency optimizations
It realizes energy conservation, pressure stabilizing, optimization power supply quality, extend the functions such as service life of equipment, and then enterprise can be reduced to the maximum extent
Operation cost.But when battery saving arrangement operation is abnormal, and will be damaged to itself or load, for guarantee Electrical Safety with
And the normal table operation of electrical equipment, it needs that energy-saving mode is seamlessly switched to bypass mains-supplied mode in time.
The present invention invents in order to solve the above problem, can realize and be supplied by battery saving arrangement when battery saving arrangement breaks down
Electricity neither influences the safe and stable operation of load to the seamless switching of bypass mains-supplied, and does not interfere the peace to faulty equipment
Full maintenance.
Summary of the invention
Three-phase full-automatic AC battery saving arrangement needs to access after alternating current smooth starting load, into energy-saving mode；It is sending out
Mains-supplied is switched to by Bypass Control when raw failure or interruption maintenance, into non-energy-saving mode.To make two kinds of moulds
In the handoff procedure of formula, load can charge normal operation incessantly, need to use the technological means of seamless switching.
The present invention is made of main circuit and control circuit two parts.Each switch in main circuit is exported by control circuit
Signal is controlled, acts the switch of main circuit orderly, battery saving arrangement is realized and is economizing on electricity and the nothing under two kinds of operating modes of bypass
Seaming and cutting are changed, using electric equipment can safe and highly efficient operation, preferably achieve the purpose that green energy conservation.
The present invention is to be achieved through the following technical solutions the purpose and requirement of above-mentioned seamless switching:
The control circuit includes switching circuit, clock generating circuit and switch driving circuit.In switching circuit by
It is respectively energy-saving mode selection signal, Electricity-saving button control letter that multiple diodes, which constitute two OR circuits or the input terminal of door,
Number, and bypass button control signal, fault-signal.Wherein energy saving button and bypass button are interlocked relationship, then any moment
There can be OR circuit output useful signal " 1 ", which can trigger corresponding counting circuit through differential circuit and count, meter
The output of number circuit is the sequential control signal of each switch in control circuit, and used switch is either relay here
Device is also possible to contactor, only the switch in main circuit, and the electric current that current capacity is greater than the switch in control circuit holds
Amount.Clock generating circuit obtains the clock of above-mentioned counting circuit using time-base integrated circuit and frequency dividing circuit.Switch driving
Circuit is realized using driving with integrated circuit, and the security reliability of switch motion is improved.
The main circuit is made of pressure regulator, transformer, switch, and wherein large capacity, height can be selected in the switch of main circuit
The relay or contactor of performance.The pressure regulator range of regulation is wide, and precision is high；Tap that there are two the transformer primary side tools,
It can be adjusted according to voltage and need to automatically switch, and the input of transformer is connect by switching normally-closed contact with output voltage regulator,
It is connected by normally opened contact and bypass, automatically can be so switched to transformer input side when pressure regulator is abnormal situation
Bypass, the power-saving running without influencing load；Pressure regulator and being used cooperatively for transformer can realize that load supplies respectively in main circuit
The coarse adjustment and fine tuning of piezoelectric voltage make supply voltage realize the effect of fine adjustment.
It is used to bypass in main circuit and has 3 with the switch of energy saving seamless switching, respectively by being controlled accordingly in control circuit
On-off control action processed, is separately mounted in bypass, the outlet side of battery saving arrangement pressure regulation input side and battery saving arrangement.It is economizing on electricity
In the conversion process of bypass, orderly switching drive signal is exported by control circuit part, allows control switch sequence to occur dynamic
Make, and then rationally control the closure and disconnection sequence of 3 switching switches in main circuit, it is ensured that load end is stablized always to be supplied
Electricity realizes the seamless switching of economize on electricity with bypass.
The beneficial effects of the present invention are:
1. supply voltage adjusts being used cooperatively using pressure regulator and transformer, the coarse adjustment and fine tuning of voltage are realized；
2. having the function of bypass, energy saving two state seamless switchings, it can be ensured that load long-term safety operation, and convenient for section
The security maintenance of energy equipment；
3. transformer primary side is to divide tap, voltage change range is wide, and can realize automatic switchover according to actual needs；
4. transformer input side is connect with pressure regulator outlet side by switching normally-closed contact, pass through switch with mains-supplied side
Normally opened contact connection, so can be when pressure regulator breaks down, and transformer automatically switches to bypass power supply, without influencing load
Power-saving running；
5. battery saving arrangement bypass and the switching of energy saving two states can both have been realized by hand push button, energy conservation can also be passed through
It is realized automatically with the electric signal of failure bypass.
Detailed description of the invention
Fig. 1 is main circuit diagram.
Wherein AX, BX, CX are three-phase regulator；C1, C2, C3 are three-phase transformer；KM1, KM2, KM3, KM4, KM5 are
Switch；1,2 the normally-closed contact of switch, normally opened contact are respectively represented；U, V, W represent three-phase electricity, and N is zero curve.
Fig. 2 is switching circuit schematic diagram.
Wherein JN0 is that energy-saving mode controls signal；JN1 is the trigger signal of energy-saving mode；JN-K is Electricity-saving button JN's
Normally opened contact；JN-B is the normally-closed contact of Electricity-saving button JN；PL-K is the normally opened contact for bypassing button PL；PL-B is bypass button
The normally-closed contact of PL；GZS0 is fault-signal；GZS is false trigger signals；B1~B5 is the output signal of counter IC4；A1
~A5 is the output signal of counter IC3；CLK is the clock signal of counter；JD is the control signal of energy-saving run；FJN is
Bypass the control signal of operation.
Fig. 3 is clock generating circuit schematic diagram.
Wherein IC10 is time-base integrated circuit；IC11 is frequency divider.
Fig. 4 is switch driving circuit schematic diagram.
Wherein J3, J4, J5 are the control signal of switch JD3, JD4, JD5；J3_OUT, J4_OUT, J5_OUT are switch
The driving signal of JD3, JD4, JD5；TJD is pressure regulator motor start-up and shut-down control signal；TJD_OUT is pressure regulator motor driven letter
Number；TGZ is pressure regulator fault-signal；TGZ_OUT is switch JD1 driving signal；ABT is transformer voltage ratio switching signal；ABT_
OUT is switch JD2 driving signal.
Fig. 5 is the electric operation control circuit figure of control circuit switch JD1, JD2, JD3, JD4, JD5.
Fig. 6 is the control principle drawing of main circuit switch KM1, KM2, KM3, KM4, KM5.
Wherein L is firewire；N is zero curve.
In above-mentioned attached drawing: RXXRepresent resistance；CXXRepresent capacitor；DXXRepresent diode；ICXXRepresent integrated circuit.And it is each
The consistent part of figure label represents identical signal.
Specific embodiment
Cooperation attached drawing elaborates to main circuit of the invention and control circuit part below.The present embodiment be with
Implemented under premised on technical solution of the present invention, provides detailed embodiment, but protection scope of the present invention is not limited to down
State embodiment.
1. main circuit
Main circuit part is mainly by pressure regulator AX, BX, CX, transformer C1, C2, C3, switch KM1~KM5 composition, here
Switch KM1~KM5 can be relay and be also possible to contactor, as shown in Figure 1.Wherein KM1~KM3 be main circuit in energy conservation with
Bypass changeover switch, KM4 are pressure regulator outlet side, i.e. transformer primary side input control switchs, under pressure regulator normal condition,
Its output voltage supplies transformer primary side input terminal, and when pressure regulator breaks down, switch KM4 obtains electric, and normally opened contact is closed, and is made
Transformer disconnects the connection with pressure regulator, and switchs to continue by mains-supplied, to not influence pressure-transforming energy-saving operation.Switch KM5
It selects to switch for transformer voltage ratio.
It when loading electrifying startup, is run by mains-supplied first, battery saving arrangement work at this time is bypassing, and only bypass is opened
Close KM2 be in obtain electric attracting state, and switch KM1, KM3~KM5 not it is electric, be in the normal state, i.e. pressure regulator AX, BX, CX's
Input side open circuit, and its outlet side passes through the normally-closed contact of switch KM4 respectively and the primary side of transformer C1, C2, C3 are connect, and becomes
Depressor secondary side is output to load through switch KM1, therefore pressure regulator and transformer export supply load without transformation at this time, bear
It carries by mains-supplied.
After the normal starting of load, the energy-saving mode of battery saving arrangement power supply can be transformed by bypass mains-supplied, at this point, control
After circuit receives power saving signal, the driving signal of exportable main circuit switch makes its sequence of movement are as follows: KM1 obtains electric closure-
KM2 power loss disconnection-KM3 obtains electric closure, and in power saving process, can be dynamic by control switch KM4 if pressure regulator breaks down
Make, automatically switch to the input side of transformer in bypass by the normally opened contact of switch KM4, so will not influence load and continue
It runs in a power saving mode.When other failures occur in battery saving arrangement operation, control circuit drives the switch for exporting main circuit
Signal makes its sequence of movement are as follows: KM3 power loss disconnection-KM2 obtains electric closure-KM1 power loss and disconnects.
It can obtain from the above analysis, battery saving arrangement is in the handoff procedure for economizing on electricity and bypassing, switch KM1 and KM2 alternating movement,
I.e. both any moments one necessarily is in closed state, can just make load end power supply uninterrupted in this way, realize seamless switching,
Threephase switch KM3 is used to control the power supply of pressure regulator, and switch KM2, KM3 are interlocked relationship, can avoid being closed at and cause
Short trouble, switch KM4 is used to switch the supply input of each transformer, and KM5 is used to control the no-load voltage ratio switching of each transformer, makes
Voltage regulation limits are wider, more flexible.
2. control circuit
Control circuit mainly includes switching circuit, clock generating circuit, switch driving circuit, the switch of final output
The switch that driving signal can indirectly control main circuit orderly acts, and then realizes the function of seamless switching.It below will be respectively in connection with
Physical circuit elaborates:
(1) switching circuit
As shown in Fig. 2, diode D21~D24, D38, D39 constitute two OR circuits, wherein JN0 is energy-saving mode
Selection signal；JN-K is the normally opened contact of Electricity-saving button JN, and JN-B is the normally-closed contact of Electricity-saving button JN；PL-K is bypass button
PL normally opened contact, PL-B are the normally-closed contact for bypassing button PL；GZS0 is the fault-signal of battery saving arrangement, can be three-phase injustice
The aggregate of the fault-signals such as weighing apparatus, phase shortage, motor rotation blockage.By circuit it is found that economize on electricity with bypass can self-starting, pass through section respectively
Electric signal JN0 and fault-signal GZS0 set are realized, can also be cut manually by Electricity-saving button JN and bypass button PL realization
It changes.
In practical application, there are two types of modes for bypass changeover to energy conservation: first is that settable battery saving arrangement delayed tens seconds
Afterwards, automatically by bypass changeover to energy-saving mode, method is set that energy saving signal JN0 is delayed, then passes it through RC differential circuit
And not circuit, as shown in Fig. 2, output as or door an input signal；Second is that being cut manually by pressing energy saving button JN
Power save mode is changed, then the normally opened contact JN-K closure of energy saving button, connects with the normally-closed contact PL-B of bypass button, output signal
As or door another way input, both modes all may make or door output JD be high pulse signal (correspondingly, another or
Door output FJN is low level " 0 " signal), it is connected to the clear terminal of trigger IC1, makes its clearing, while being connected to trigger
The set end of IC2 makes it export high level " 1 ", then counter IC3 is reset, and counter IC4 is started counting, counting clock CLK
One rising edge of every arrival, counter IC4 output plus 1, i.e. output signal B1~B5 is by set in turn, and B1~B5 is switch
The control signal for obtaining electric closure indirectly controls main circuit switch KM1 closure, KM2 disconnection, KM3 closure, pressure regulator electric motor starting,
Make to load power-saving running.
When battery saving arrangement breaks down or service personnel needs maintenance down, battery saving arrangement need to it is automatic by energy-saving mode or
It is manually switched to bypass, is operated normally without influencing load-side.Therefore the normally-closed contact JN-B of energy saving button and bypass button
Normally opened contact PL-K series arm and fault-signal GZS0 constitute OR circuit, when detecting that fault-signal, i.e. GZS0 be
It presses when " 1 " or artificially and bypasses button PL, then or door output FJN obtains high pulse signal, while JD is low level " 0 ".So
FJN is signally attached to trigger IC1 set end, so that it is exported Q " 1 ", counter IC4 is reset, and the RST of counter IC3
Reset terminal obtains a high level pulse, starts counting after resetting it, and output signal A1~A5 is the control for switching power loss and disconnecting
Signal processed indirectly controls the stopping of pressure regulator motor, main circuit switch KM3 disconnection, KM2 closure, KM1 disconnection, cuts battery saving arrangement
Bypass is changed to, both will not influence the normal operation of load in this way, the safety inspection of battery saving arrangement will not be interfered, if it exists event
Barrier can make load continue power-saving running, and bypass button PL and energy saving button JN after troubleshooting by pressing Electricity-saving button
For interlocking, any time only one for electric closed state.
(2) clock generating circuit
IC10 is time-base integrated circuit, output square-wave signal by IC11 frequency dividing circuit frequency dividing after obtain counter IC3,
The clock signal clk of IC4, as shown in figure 3, wherein diode D26, D27, D28 and resistance R76 constitute OR circuit, i.e., when A5,
The output Q6 three of B5, IC11 it is any be high level " 1 " when, IC11 i.e. reset, and then in Fig. 2 counter IC3, IC4 stop meter
It counts, all switches keep current states until receiving bypass or energy saving switching signal again in main circuit.
(3) switch driving circuit
As shown in figure 4, the counter IC3 of the clearing control end R of trigger IC9, IC8, IC7, IC5 respectively as shown in Figure 2
Output signal A4, A3, A2, A1 control, set control the end S respectively the output signal B1 of counter IC4 as shown in Figure 2,
B2, B3, B4 control, as the above analysis, during bypassing trochanter energy, counter IC3 is reset, and counter IC4 is counted, then is schemed
Each trigger output end Q will turn successively to be set in power save mode in bypass in 4, i.e., signal J3, J4, J5, TJD will in order
It is sequentially output high level " 1 ", then passes through switch driving circuit IC12, is sequentially output main circuit switch and obtains electric driving signal
J3_OUT, J4_OUT, J5_OUT and TJD_OUT, and it is effective for output low level.Wherein J3_OUT, J4_OUT, J5_OUT difference
For driving control switch JD3, JD4, JD5 of switch KM1, KM2, KM3 in main circuit；TJD_OUT is for driving in main circuit
The motor start switch of pressure regulator AX, BX, CX.TGZ, ABT are respectively pressure regulator fault-signal and transformer voltage ratio switching signal,
It is that high level is effective.
JD1~JD5 as shown in Figure 5 is respectively the control switch of switch KM1~KM5 in main circuit, can be relay,
Contactor can also be selected, switching drive signal J3_OUT~J5_OUT of Fig. 4 output is the driving letter of switch JD3~JD5
Number, when J3_OUT~J5_OUT is when bypass turns to be sequentially output in power save mode as " 0 ", switch JD3~JD5 coil is successively
Electricity, normally opened contact are attracted, and normally-closed contact disconnects, then as shown in fig. 6, when bypass seamlessly switches to power save mode in main circuit,
Action sequence are as follows: KM1 is attracted, KM2 is disconnected, KM3 is attracted.And switch KM2 and KM3 is interlocked relationship, therefore need to be by KM2
Normally-closed contact connect with the coil of KM3, the normally-closed contact of KM3 is connected with the coil of KM2.And when TGZ is " 1 " in Fig. 4,
I.e. pressure regulator breaks down, and switch JD1 coil as shown in Figure 5 obtains electric actuation, then as shown in Fig. 6 and Fig. 1, main circuit switch KM4
Normally opened contact closure, transformer turn by bypass power supply；When ABT is " 1 " in Fig. 4, illustrates to need switching transformer no-load voltage ratio, then scheme
Switch JD2 coil obtains electric actuation in 5, and main circuit switch KM5 normally opened contact is attracted.
On the contrary, counter IC4 is reset in Fig. 2 during bypass is cut in energy conservation, IC3 is counted, then each triggering in Fig. 4
The device output end Q will be successively cleared, i.e. signal TJD, J5, J4, J3 will be sequentially output low level " 0 " in order, then by opening
Driving circuit IC12 is closed, the control switch JD3 of switch KM1, KM2, KM3 in output voltage regulator motor start switch and main circuit,
The power loss signal TJD_OUT=J5_OUT=J4_OUT=J3_OUT=" 1 " of JD4, JD5, then the motor of pressure regulator stops working,
Meanwhile as shown in Figure 5 and Figure 6, the magnet exciting coil of switch JD5, JD4, JD3 successively power loss can be learnt, normally opened contact disconnects,
Normally-closed contact is attracted, then the sequence of movement of switch KM1~KM3 in main circuit at this time are as follows: KM3 is disconnected, KM2 is attracted, KM1 breaks
It opens.In this way, battery saving arrangement just seamlessly switches to bypass operation.
It is not that embodiments of the present invention are carried out finally, it should be noted that above are only the embodiment of the present invention
It limits, it is all to utilize description of the invention and accompanying drawing content, the present invention is applied into other correlative technology fields, should all be covered
Within the protection scope of the present invention.
Claims (2)
1. a kind of seamless switching circuit of three-phase full-automatic AC battery saving arrangement, including main circuit and control circuit, the main electricity
Pressure regulator, transformer, switch is routed to constitute；The control circuit is driven by switching circuit, clock generating circuit and switch
Circuit is constituted；It is characterized by: passing through the driving signal of control circuit output control switch, making control switch and then controlling main electricity
The orderly open and close of way switch realize that battery saving arrangement being capable of seamless switching in economize on electricity and non-economize on electricity conversion；In the main circuit
Pressure regulator output is connected by switching normally-closed contact with transformer primary side input side, while transformer primary side input terminal passes through switch
Normally opened contact and bypass connect, and make in the normal energy-saving run of equipment, and pressure regulator and transformer are with the use of the coarse adjustment for realizing voltage
With fine tuning, and when pressure regulator failure, transformer input side can switch to bypass power supply.
2. a kind of seamless switching circuit of three-phase full-automatic AC battery saving arrangement according to claim 1, it is characterised in that:
The transformer primary side is to divide tap form, can be needed according to practical pressure regulation through switching no-load voltage ratio, to expand pressure regulation model
It encloses.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610833603.9A CN106300643B (en) | 2016-09-06 | 2016-09-06 | The seamless switching circuit of three-phase full-automatic AC battery saving arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610833603.9A CN106300643B (en) | 2016-09-06 | 2016-09-06 | The seamless switching circuit of three-phase full-automatic AC battery saving arrangement |
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| Publication Number | Publication Date |
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| CN106300643A CN106300643A (en) | 2017-01-04 |
| CN106300643B true CN106300643B (en) | 2019-05-17 |
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| CN201610833603.9A Active CN106300643B (en) | 2016-09-06 | 2016-09-06 | The seamless switching circuit of three-phase full-automatic AC battery saving arrangement |
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| CN112977511B (en) * | 2019-12-16 | 2022-07-26 | 中车唐山机车车辆有限公司 | Rail train's air conditioning system control circuit and rail train |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142593Y (en) * | 2007-11-30 | 2008-10-29 | 唐云雄 | Low-electromagnetic interference power supply circuit |
| CN202949277U (en) * | 2012-11-05 | 2013-05-22 | 安徽国科电力设备有限公司 | Low-voltage switching circuit |
| CN206135528U (en) * | 2016-09-06 | 2017-04-26 | 王振铎 | Full -automatic interchange power saving device's of three -phase seamless handover circuit |
-
2016
- 2016-09-06 CN CN201610833603.9A patent/CN106300643B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142593Y (en) * | 2007-11-30 | 2008-10-29 | 唐云雄 | Low-electromagnetic interference power supply circuit |
| CN202949277U (en) * | 2012-11-05 | 2013-05-22 | 安徽国科电力设备有限公司 | Low-voltage switching circuit |
| CN206135528U (en) * | 2016-09-06 | 2017-04-26 | 王振铎 | Full -automatic interchange power saving device's of three -phase seamless handover circuit |
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| CN106300643A (en) | 2017-01-04 |
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