CN204088090U - A kind of automatic transfer switch for triple power supplies device - Google Patents
A kind of automatic transfer switch for triple power supplies device Download PDFInfo
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- CN204088090U CN204088090U CN201420569811.9U CN201420569811U CN204088090U CN 204088090 U CN204088090 U CN 204088090U CN 201420569811 U CN201420569811 U CN 201420569811U CN 204088090 U CN204088090 U CN 204088090U
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Abstract
The utility model discloses a kind of automatic transfer switch for triple power supplies device, comprise three groups of circuit breakers of break-make three-way power respectively, drive the performance element of circuit breaker break-make and control the control unit of performance element work, the decelerator that performance element comprises motor, is connected with motor, and be connected with decelerator and stir the plectrum rotating disk of circuit breaker handle; Control unit comprises angular displacement sensor, and angular displacement sensor detects the angular displacement of plectrum rotating disk; Control unit also comprises controller, detect the electric voltage frequency Acquisition Circuit of three-way power electric voltage frequency, Angular Displacement Detecting circuit that the signal received from angular displacement sensor goes forward side by side row relax and motor-drive circuit, controller receives the signal from electric voltage frequency Acquisition Circuit and Angular Displacement Detecting circuit, output signal to motor-drive circuit, motor-drive circuit outputs signal to motor to control the running of plectrum rotating disk.The utility model can detect in real time and judge three-way power situation, can realize the automatic switchover of power supply.
Description
Technical field
The utility model relates to a kind of automatic transfer switching equipment, particularly a kind of automatic transfer switch for triple power supplies device.
Background technology
At present, along with the fast development of national economy, more and more industry requires more and more higher to the power supply reliability of electric power system.In this case, be applied to the power automatic transfer switch device solving the requirement of electric power system continued power to start to popularize gradually.Under existing technical conditions, the application of double power supply automatic transfer switch is comparatively general, but generally can not reach instructions for use for during the employing dual power supplies such as hospital, airport and telecommunication department.In order to meet it, three-way power being adopted to the requirement needs of power supply continuously, namely using main power source, the first stand-by power supply, the second stand-by power supply.
Usually the technical scheme being applied to the automatic transfer switching equipment of three-way power adopts two-stage dual power automatic transfer switching equipment, namely first order dual-power automatic switching device input is main power source and the first stand-by power supply, the input of second level dual-power automatic switching device is made up of the output of first order dual-power automatic switching device and the second stand-by power supply, the output of second level dual-power automatic switching device connects load, is realized the automatic conversion and control of three-way power by two-stage dual-power automatic switching device.The implementation of this three power automatic transfer switchs has that use equipment increases, electrical circuit is complicated, use cost and maintenance cost is higher, poor stability, be not easy to the shortcomings such as maintenance.
Summary of the invention
The utility model provides a kind of automatic transfer switch for triple power supplies device for solving in known technology the technical problem that exists.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is: a kind of automatic transfer switch for triple power supplies device, comprise three groups of circuit breakers of break-make three-way power respectively, drive the performance element of three groups of circuit breaker break-makes and control the control unit of this performance element work, the decelerator that described performance element comprises motor, is connected with motor, and be connected with this decelerator and stir the plectrum rotating disk of described circuit breaker handle; Described control unit comprises angular displacement sensor, and described angular displacement sensor detects the angular displacement of described plectrum rotating disk; The Angular Displacement Detecting circuit that described control unit also comprises controller, the voltage detecting three-way power voltage and frequency and frequency collection circuit, the signal received from described angular displacement sensor goes forward side by side row relax and motor-drive circuit, described controller receives the signal from described voltage and frequency collection circuit and described Angular Displacement Detecting circuit, output signal to described motor-drive circuit, described motor-drive circuit outputs signal to described motor to control the running of described plectrum rotating disk.
Further, described controller comprises single-chip microcomputer or PLC.
Further, described voltage and frequency collection circuit comprise linear optical coupling transformer, CCP module is established in described controller, described CCP module is connected with described voltage and frequency collection circuit, described linear optical coupling transformer input is from the reference voltage signal of described controller, and out-put supply supplies described CCP module.
Further, described controller comprises A/D converter, described Angular Displacement Detecting circuit comprises reducing transformer, described reducing transformer comprises current-limiting resistance and the photoelectrical coupler of band temperature-compensating, described reducing transformer input, from described displacement transducer signal, outputs signal to described A/D converter by described photoelectrical coupler.
Further, also comprise power circuit, described power circuit supplies described control unit working power, and described power circuit comprises electromagnetic interface filter, uses Capacitor apart between the input end grounding pole of described power circuit and output head grounding pole.
Further, described control unit also comprises display, and described controller output signal is to described display.
Further, described control unit also comprises button, and described button comprises automatic power switching key and manual power switching key, and described key-press input signal is to described controller.
Further, described decelerator is double output shaft worm type of reduction gearing.
Further, an output shaft of described double output shaft worm type of reduction gearing is connected with described plectrum rotating disk, and another output shaft is connected with described angular displacement sensor.
The advantage that the utility model has and good effect are: automatic transfer switch for triple power supplies device adopts a set of driving mechanism to complete the handover operation of three-way power; Automatic transfer switch for triple power supplies device for control core with the controller such as single-chip microcomputer or PLC, can realize manually and automatic two kinds of mode of operations, and realize man-machine interactive operation by the display such as button and liquid crystal display; Voltage and frequency collection circuit can detect voltage and the frequency of three-way power in real time, the comparison circuits such as the comparator established in controller passes through, to detect that voltage and frequency compare with reference signal, if when supply voltage and frequency occur abnormal, automatic transfer switch for triple power supplies device can realize the automatic switchover of power supply; This automatic transfer switch for triple power supplies device, relative to existing two-stage dual power automatic transfer switching equipment, has that structure is simple, cost of manufacture is low, reliability is high and be easy to the advantages such as maintenance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is control unit structural representation of the present utility model;
Fig. 3 is plectrum turntable structure schematic diagram of the present utility model;
Fig. 4 is plectrum turntable structure front view of the present utility model;
Fig. 5 is the syndeton schematic diagram of plectrum assembly of the present utility model and circuit breaker handle;
Fig. 6 is voltage of the present utility model and frequency collection circuit theory diagrams;
Fig. 7 is angular displacement Acquisition Circuit schematic diagram of the present utility model;
Fig. 8 is motor-drive circuit schematic diagram of the present utility model;
Fig. 9 is power circuit principle figure of the present utility model;
Figure 10 is corresponding three the circuit breaker handle separating brakes in turned position of unidirectional plectrum of the present utility model and the location drawing of combined floodgate.
In figure: 1. control box; 2-1,2-2,2-3. circuit breaker; 3. installation frame; 4. plectrum rotating disk; 5. motor, 6. decelerator, 7. angular displacement sensor, 8. output shaft sleeve, 9. top rotary table, 10. lower rotary table, 11. major axis cover pads, 12. unidirectional plectrums, 13. back-moving springs, 14. gag lever posts, 15. switch plectrums, 16. guiding rotors, 17. driving spring axle beds, 18. driving springs, 19. driving spring baffle plates, 20. circuit breaker handles.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, Fig. 2 and Fig. 3, a kind of automatic transfer switch for triple power supplies device, comprise three groups of circuit breakers 2 of break-make three-way power respectively, drive the performance element of three groups of circuit breaker break-makes 2 and control the control unit of this performance element work, said modules can be arranged on installation frame 3, the primary circuit elements of control unit is arranged in control box 1, the decelerator 6 that described performance element comprises motor 5, is connected with motor, and be connected with this decelerator 6 and stir the plectrum rotating disk 4 of described circuit breaker handle; Described control unit comprises angular displacement sensor 7, and described angular displacement sensor 7 detects the angular displacement of described plectrum rotating disk 4; The Angular Displacement Detecting circuit that described control unit also comprises controller, the voltage detecting three-way power and electric voltage frequency and frequency collection circuit, the signal received from described angular displacement sensor 7 goes forward side by side row relax and motor-drive circuit, described controller receives the signal from described voltage and frequency collection circuit and described Angular Displacement Detecting circuit, output signal to described motor-drive circuit, described motor-drive circuit outputs signal to described motor 5 and operates to control described plectrum rotating disk 4.Voltage and frequency collection circuit can detect voltage and the frequency of three-way power in real time, by the respective comparator circuit etc. established in external voltage and frequency comparator circuit or controller, to detect that voltage and frequency compare with reference signal, controller is according to comparative result, output signal, if when supply voltage and frequency occur abnormal, then controller output signal, output signal to described motor-drive circuit, described motor-drive circuit outputs signal to described motor 5 and operates to control described plectrum rotating disk 4, thus control the automatic switchover that automatic transfer switch for triple power supplies device can realize power supply.
Wherein said controller can comprise the components and parts that single-chip microcomputer or PLC etc. have microprocessor, by the microprocessor established in it, and accurate control switch switching node.
Further, described voltage and frequency collection circuit can comprise linear optical coupling transformer, described controller can in establish CCP module, described CCP module is connected with described voltage and frequency collection circuit, described linear optical coupling transformer input is from the reference voltage signal of described controller, and out-put supply supplies described CCP module.Wherein CCP module is realize catching/compare/English abbreviation of pulse width modulation three kinds of functional modules, it has three kinds of mode of operations, wherein, trap mode is the state of input signal to single-chip microcomputer pin, when the change of signal meets the condition of setting, will interruption be produced, record the timer value in this moment simultaneously.Utilize this characteristic can measure cycle of periodic square wave signal of pin input, frequency and duty ratio etc., also can measure the pulse duration of the non-periodic signals of pin input, pulse due in or pulse and to disappear the parameters such as moment; Its comparison pattern refers to when TMR1 timer compares with the numerical value preset when running counting, if equal, will produce interruption, and perform specific task.Utilizing this characteristic can export the rectangular pulse of different in width, negative pulse, delay and running signal, the control signal of thyristor operating angle and driving stepper motor signal etc. from pin, also claiming comparison pattern for exporting comparison pattern; Its pulse-width-modulated mode refers to that the pulse duration that this pin exports is the signal pulse that can regulate.Utilize this characteristic can realize the rotating speed control of direct current machine and the variable frequency control etc. of stepping motor.Pulse period and dust cycle compare generation by timer internal, therefore also need to use timer.Adopting the capture function of this module in the design, the rising edge of capturing input signal or trailing edge, when there is saltus step, record clock signal being got off.
Further, described controller can comprise A/D converter, described Angular Displacement Detecting circuit can comprise reducing transformer, described reducing transformer can comprise current-limiting resistance and the photoelectrical coupler of band temperature-compensating, described reducing transformer input, from described displacement transducer signal, outputs signal to described A/D converter by described photoelectrical coupler.
Further, also power circuit can be comprised, described power circuit can supply described control unit working power, described power circuit can comprise noise filter, with Capacitor apart between the input end grounding pole of described power circuit and output head grounding pole, namely use Capacitor apart between described power circuit input AC side joint ground and the output ground connection supplying the digital circuits such as single-chip microcomputer.Electromagnetic interface filter is also known as Electromagnetic interference filter, and its effect suppresses electromagnetic interference, and electromagnetic interference key be suppressed to be design noise filtering.Noise filtering is adopted can effectively to suppress the noise in electrical network to enter circuit, the noise pollution electrical network of also circuit capable of inhibiting generation.Noise has two classes, and a class is common-mode noise, and a class is differential mode noise.Common-mode noise results between phase line and ground, and differential mode noise results between phase line.The type of what current use was more is common mode inductance and capacitance series, as shown in Figure 6.Inductance 1-2 in L1 and electric capacity C1 form low pass filter, and the common-mode signal on circuit can be made to control, in comparatively low level, to inhibit outside electromagnetic interference signal to enter circuit.L1 is common mode inductance, is common mode choke again.Common mode inductance is actual is a bidirectional filter: on the one hand electromagnetic interference on filtering circuit, and another side has and will control itself outwards not launch electromagnetic interference.Two coils of common mode inductance are oppositely around on same iron core, and the number of turn and phase place are all identical.Like this, when the sinusoidal current in circuit flows through common mode inductance, electric current produces opposing magnetic field and cancels out each other in the inductance coil of same-phase coiling, and now normal line current is mainly by the impact of coil resistance, when there being common mode current flowing through coil, due to the same tropism of common mode current, can the magnetic field of homophase be produced in coil and increase coil induction reactance, make coil show as high impedance, heavy damping, thus attenuation common-mode electric current, reaches filtering object.
Further, described control unit also can comprise the displays such as liquid crystal display, and described controller output signal is to described display.
Described control unit also can comprise button, and described button can comprise automatic power switching key and manual power switching key, and described key-press input signal is to described controller.
Further, described decelerator 6 can be double output shaft worm type of reduction gearing.An output shaft of described double output shaft worm type of reduction gearing can be connected with described plectrum rotating disk, and another output shaft can be connected with described angular displacement sensor.
The controllers such as above-mentioned single-chip microcomputer, power circuit, voltage and frequency collection circuit, angular displacement Acquisition Circuit, motor-drive circuit etc. can be arranged in control box 1, LCDs, button etc. can be arranged on control box 1 on cover, angular displacement sensor 7 can be arranged on the output shaft of decelerator 6.
Refer to a concrete structure embodiment of the above-mentioned plectrum rotating disk 4 shown in Fig. 3 and Fig. 4, plectrum rotating disk 4 comprises output shaft sleeve 8, major axis cover pad 11, upper combination dials and sub-combinations rotating disk, wherein upper combination dials and sub-combinations rotating disk are equipped with top rotary table 9, lower rotary table 10, unidirectional plectrum 12 etc., the power shaft of double output shaft worm type of reduction gearing 6 is connected with the output shaft of motor 5, one end of the output shaft of double output shaft worm type of reduction gearing 6 is connected with angular displacement sensor 7, the other end of double output shaft worm type of reduction gearing 6 output shaft is fixedly connected with by holding screw with output shaft sleeve 8, top rotary table 9 and lower rotary table 10 partner combination dials, upper combination dials and the upper and lower two pairs of rotating disks of sub-combinations rotating disk, output shaft sleeve 8 is fixedly connected with upper and lower two pairs of combination dials by screw, then be mounted with major axis between upper combination dials and sub-combinations rotating disk and overlap pad 11, also short sleeve pad 21 is placed with between top rotary table 9 in sub-combinations rotating disk and the lower rotary table 10 in sub-combinations rotating disk, upper combination dials and sub-combinations rotating disk are all fixed on top rotary table 9 on output shaft sleeve 8 in every a pair combination dials and lower rotary table 10 and have screw hole and be provided with screw near the place of output shaft sleeve 8 is relative, unidirectional plectrum 12 is positioned between top rotary table 9 and lower rotary table 10 by this screw is hinged, unidirectional plectrum 12 in upper combination dials is 90 degree of interlaced arrangement with unidirectional plectrum 12 in the vertical direction in sub-combinations rotating disk, the center of lower rotary table 10 is fixed by screws on output shaft sleeve 8, unidirectional plectrum 12 upper end has screw hole, unidirectional plectrum 12 by this screw hole and lower rotary table 10 hinged, this is used for the rotation axis of hinged screw as unidirectional plectrum 12.One end near this screw on unidirectional plectrum 12 has an installing hole, and one end of back-moving spring 13 is connected with the installing hole on unidirectional plectrum 12, and the other end of back-moving spring 13 is fixedly connected with by screw with lower rotary table 10 with top rotary table 9.
A concrete structure embodiment of plectrum assembly shown in Figure 5, plectrum assembly is made up of switch plectrum 15, two guiding rotors 16, driving spring axle bed 17, driving spring 18, driving spring baffle plates 19.There is arc notch switch plectrum 15 front end, the outline of arc notch and unidirectional plectrum 12 is tangent, two guiding rotors 16 are hinged on two installing holes that switch plectrum 15 medium position has respectively by rivet, the rivet hole that driving spring axle bed 17 is had on front end by rivet and switch plectrum 15 is hinged, driving spring 18 is placed between driving spring axle bed 17 and driving spring baffle plate 19, and circuit breaker handle 20 is placed between two guiding rotors 16.Switch plectrum 15 rear end by screw and lower installation board 4 hinged, switch plectrum 15 front end between the top rotary table 9 and lower rotary table 10 of often pair of rotating disk of rotating disk driven unit, driving spring baffle plate 19 by rivet and lower installation board 4 hinged.
A concrete structure embodiment of voltage shown in Figure 6 and frequency collection circuit, the effect of voltage and frequency collection circuit is: for the ease of measuring voltage and the frequency of power supply, need the voltage signal and the frequency signal that ac signal are converted to the identification of monolithic function, and realize voltage acquisition and the frequency detecting of power supply by the capture function of the A/D port of the controllers such as single-chip microcomputer and the built-in CCP module of controller.Adopt linear optical coupling as voltage drop element in voltage and frequency collection circuit, the transformer in alternative existing reduction technology or the effect of instrument transformer, have the advantages such as volume is little, compact conformation, buffer circuit.Adopt programmable voltage reference in this circuit, adjust parameter by digitlization, abandoned the simulated annealing method with conventional potentiometer, improve stability and the reliability of circuit.
A concrete structure embodiment of angular displacement Acquisition Circuit shown in Figure 7, the effect of angular displacement Acquisition Circuit is: for the ease of detecting the angle of actuator, need the voltage signal of acquisition angle displacement transducer, this voltage signal is input to the A/D port of single-chip microcomputer through step-down, and then realizes the angle displacement that single-chip microcomputer detects driving mechanism in real time.This circuit adopts the precision resistance with temperature-compensating as current limiting element, and realizes electrical isolation by optic coupling element.
A concrete structure embodiment of motor-drive circuit shown in Figure 8, the effect of motor-drive circuit is: the controller output signals such as single-chip microcomputer are to motor-drive circuit, rotating and reverse of motor is controlled by motor-drive circuit, and then drive plectrum rotating disk to realize the break-make of circuit breaker, thus complete automatic conversion and the manual switch function of power supply.
A concrete structure embodiment of power circuit shown in Figure 9, the effect of power circuit is: in order to provide direct current supply, by rectifier bridge, transformation, filtering etc., alternating current is converted to 5V direct current.This circuit adopts high frequency switch power step-down, by common-mode voltage to EMI filtering, in analog digitally between isolate by smaller capacitive, anti-tampering, inside additionally uses the higher a reference source of stability, improves the reliability and stability of system, has that cost is low, volume is little, efficiency is high compared with other power supplies, stronger electromagnetic compatibility, the control section being applicable to the utility model three power automatic transfer switch is powered.
Operation principle of the present utility model:
Circuit breaker 2-1 and circuit breaker 2-2 horizontal symmetrical are placed, and circuit breaker 2-2 and circuit breaker 2-3 vertical symmetry are placed, and the circuit breaker handle 20 of three circuit breakers contacts with the switch plectrum 15 of diverse location respectively, refers to Fig. 1 and Fig. 5.
Corresponding circuit breaker handle 20 separating brake of three groups of circuit breakers in turned position of unidirectional plectrum 12 shown in Figure 10 and the position of combined floodgate, namely unidirectional plectrum 12 controls the position of circuit breaker 2-1, circuit breaker 2-2 and circuit breaker 2-3 separating brake and combined floodgate.In figure, the A point position of circumference and the A ' of circumference put position is corresponding and unidirectional plectrum 12 controls the separating brake of circuit breaker 2-1 and the position of combined floodgate; The B point position of circumference and the B ' of circumference put position correspondence and control the separating brake of circuit breaker 2-2 and the position of combined floodgate with unidirectional plectrum 12; The C point position of circumference and the C ' of circumference put position correspondence and control the separating brake of circuit breaker 2-3 and the position of combined floodgate with unidirectional plectrum 12; The D point position of circumference is that correspondence controls the position of three circuit breakers disjunction simultaneously with unidirectional plectrum 12.Be described below more specifically:
Breaker closing operation principle, illustrate for combined floodgate circuit breaker 2-1 process, when motor 5 drives rotating disk driven unit to rotate counterclockwise by double output shaft worm type of reduction gearing 6, rotating disk driven unit rotates counterclockwise from the optional position of a circumference, unidirectional plectrum 12 contacts with switch plectrum 15, the circuit breaker handle 20 of the circuit breaker 2 between switch plectrum 15 is in gate-dividing state, switch plectrum 15 can not rotate clockwise, unidirectional plectrum with hinged screw for rotation axis rotates clockwise, when unidirectional plectrum 12 is separated with switch plectrum 15, unidirectional plectrum 12 turns to counterclockwise and contacts with gag lever post 14 under the effect of back-moving spring 13, now rotating disk driven unit is done at above-mentioned circumference the ad-hoc location rotated counterclockwise and is set to A point position and A ' puts position, when motor drives rotating disk driven unit to rotate counterclockwise A point position, motor 5 changes and rotates backward, and motor 5 drives rotating disk driven unit to rotate clockwise by double output shaft worm type of reduction gearing 6, rotating disk driven unit rotates clockwise from A point position, unidirectional plectrum 12 contacts with gag lever post 14 under the effect of back-moving spring 13, gag lever post 14 limits rotating counterclockwise of unidirectional plectrum 12, unidirectional plectrum 12 contacts with switch plectrum 15, unidirectional plectrum 12 driving switch plectrum 15 rotates counterclockwise, and guiding rotor 16 hinged on switch plectrum 15 drives the circuit breaker handle 20 of circuit breaker 2-1 to rotate counterclockwise, when motor 5 drive rotating disk driven unit turn to A ' put position time, angular displacement sensor 7 obtains positional information, motor 5 stops, circuit breaker 2-1 closes a floodgate, double output shaft worm type of reduction gearing 6 has auto-lock function, when motor 5 stops operating, switch plectrum 15 can not rotate clockwise under the effect of driving spring 18, and circuit breaker 2-2 and circuit breaker 2-3 is in gate-dividing state.
Circuit breaker disjunction operation principle, be described for the circuit breaker handle 20 of breaking circuit breaker 2-1 again: when motor 5 drives rotating disk driven unit to rotate clockwise, rotating disk driven unit is put position from A ' and is rotated clockwise, unidirectional plectrum 12 rotates clockwise and is separated with switch plectrum 15, and switch plectrum 15 rotates clockwise under the effect of driving spring 18; When circuit breaker handle 20 to circuit breaker 2-1 is in disjunction, switch plectrum 15 is in extreme position, and switch plectrum 15 stops operating, circuit breaker 2-1 disjunction.When motor 5 drives rotating disk driven unit to rotate clockwise the D point position of above-mentioned circumference, angular displacement sensor 7 obtains positional information, and motor 5 stops operating, and circuit breaker 2-1, circuit breaker 2-2 and circuit breaker 2-3 are in gate-dividing state, i.e. disjunction three-way power.
Above-mentioned rotating counterclockwise and rotate clockwise is all the rotation directions seen from the top down.
Claims (9)
1. an automatic transfer switch for triple power supplies device, comprise three groups of circuit breakers of break-make three-way power respectively, drive the performance element of three groups of circuit breaker break-makes and control the control unit of this performance element work, the decelerator that described performance element comprises motor, is connected with motor, and be connected with this decelerator and stir the plectrum rotating disk of described circuit breaker handle; Described control unit comprises angular displacement sensor, and described angular displacement sensor detects the angular displacement of described plectrum rotating disk; It is characterized in that, the Angular Displacement Detecting circuit that described control unit also comprises controller, the voltage detecting three-way power voltage and frequency and frequency collection circuit, the signal received from described angular displacement sensor goes forward side by side row relax and motor-drive circuit, described controller receives the signal from described voltage and frequency collection circuit and described Angular Displacement Detecting circuit, output signal to described motor-drive circuit, described motor-drive circuit outputs signal to described motor to control the running of described plectrum rotating disk.
2. automatic transfer switch for triple power supplies device according to claim 1, is characterized in that, described controller comprises single-chip microcomputer or PLC.
3. automatic transfer switch for triple power supplies device according to claim 1, it is characterized in that, described voltage and frequency collection circuit comprise linear optical coupling transformer, CCP module is established in described controller, described CCP module is connected with described electric voltage frequency Acquisition Circuit, described linear optical coupling transformer input is from the reference voltage signal of described controller, and out-put supply supplies described CCP module.
4. automatic transfer switch for triple power supplies device according to claim 1, it is characterized in that, described controller comprises A/D converter, described Angular Displacement Detecting circuit comprises reducing transformer, described reducing transformer comprises current-limiting resistance and the photoelectrical coupler of band temperature-compensating, described reducing transformer input, from described displacement transducer signal, outputs signal to described A/D converter by described photoelectrical coupler.
5. automatic transfer switch for triple power supplies device according to claim 1, it is characterized in that, also comprise power circuit, described power circuit supplies described control unit working power, described power circuit comprises electromagnetic interface filter, uses Capacitor apart between the input end grounding pole of described power circuit and output head grounding pole.
6. automatic transfer switch for triple power supplies device according to claim 1, is characterized in that, described control unit also comprises display, and described controller output signal is to described display.
7. automatic transfer switch for triple power supplies device according to claim 1, is characterized in that, described control unit also comprises button, and described button comprises automatic power switching key and manual power switching key, and described key-press input signal is to described controller.
8. automatic transfer switch for triple power supplies device according to claim 1, is characterized in that, described decelerator is double output shaft worm type of reduction gearing.
9. automatic transfer switch for triple power supplies device according to claim 8, is characterized in that, an output shaft of described double output shaft worm type of reduction gearing is connected with described plectrum rotating disk, and another output shaft is connected with described angular displacement sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420569811.9U CN204088090U (en) | 2014-09-29 | 2014-09-29 | A kind of automatic transfer switch for triple power supplies device |
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| CN201420569811.9U CN204088090U (en) | 2014-09-29 | 2014-09-29 | A kind of automatic transfer switch for triple power supplies device |
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| CN204088090U true CN204088090U (en) | 2015-01-07 |
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| CN104240978A (en) * | 2014-09-29 | 2014-12-24 | 河北工业大学 | Automatic changeover device for three-output power source |
| CN105261494A (en) * | 2015-07-25 | 2016-01-20 | 河北工业大学 | Power-driven conversion operation mechanism available for three power supplies |
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| CN106783288A (en) * | 2016-12-28 | 2017-05-31 | 滁州品之达电器科技有限公司 | One kind automatically adjusts conversion switch |
| CN106941273A (en) * | 2015-12-31 | 2017-07-11 | 重庆宁来科贸有限公司 | A kind of triple supporting power supplys that automatically switch |
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| CN104240978B (en) * | 2014-09-29 | 2017-08-04 | 河北工业大学 | A kind of automatic transfer switch for triple power supplies device |
| CN104240978A (en) * | 2014-09-29 | 2014-12-24 | 河北工业大学 | Automatic changeover device for three-output power source |
| CN105261494A (en) * | 2015-07-25 | 2016-01-20 | 河北工业大学 | Power-driven conversion operation mechanism available for three power supplies |
| CN105282930A (en) * | 2015-10-20 | 2016-01-27 | 晨辉光宝科技有限公司 | Frequency adaptive LED lamp drive circuit |
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| CN108461330A (en) * | 2017-02-17 | 2018-08-28 | 上海精益电器厂有限公司 | A kind of three power automatic transfer switch devices |
| CN108461330B (en) * | 2017-02-17 | 2019-09-10 | 上海精益电器厂有限公司 | A kind of three power automatic transfer switch devices |
| CN109353133A (en) * | 2018-10-26 | 2019-02-19 | 岳阳宝丽纺织品有限公司 | A kind of spray head lifting localization method |
| CN109559913A (en) * | 2018-11-14 | 2019-04-02 | 宁波极航电器有限公司 | A kind of transfer switching equipment of interlocking |
| CN112769222A (en) * | 2021-01-21 | 2021-05-07 | 中国建筑西北设计研究院有限公司 | Power supply switching system and power supply switching method |
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