CN201341018Y - Air conditioner phase-sequence controller with automatic phase change function - Google Patents
Air conditioner phase-sequence controller with automatic phase change function Download PDFInfo
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- CN201341018Y CN201341018Y CNU2008201796704U CN200820179670U CN201341018Y CN 201341018 Y CN201341018 Y CN 201341018Y CN U2008201796704 U CNU2008201796704 U CN U2008201796704U CN 200820179670 U CN200820179670 U CN 200820179670U CN 201341018 Y CN201341018 Y CN 201341018Y
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Abstract
The utility model relates to a phase-sequence controller, in particular to an air conditioner phase-sequence controller with automatic phase change function, which comprises a control unit and two reversing three-phase switches which are connected with a three-phase power source and a motor, wherein the control unit comprises a phase sequence detecting module, a driving module and a main control unit, and the main control unit is connected with the phase sequence detecting module and the driving module, and the phase sequence detecting module detects the phase sequence of the three-phase power source in the application field to be sent to the main control unit, and the main control unit compares the phase sequence which is detected by the phase sequence detecting module with the phase sequence which is required by the air conditioner and adjusts the connection of the two reversing three-phase switches through the driving module according to the comparison result, thereby ensuring that the phase sequence of the power source of the air conditioner is consistent with the required phase sequence. The air conditioner phase-sequence controller with automatic phase change function has the advantages that the installation and the application are convenient, and the adjustment of the phase sequence is free from the installation commissioning personnel, and the three-phase air conditioner is ensured to work normally when accessing to the power source through any phase sequence, thereby preventing the problem that the installation and the application requires the commissioning, and having small power consumption; by adopting the joint-free switch, the service life is long and the cost is low.
Description
Technical field
The utility model relates to a kind of phase sequence controller, particularly a kind of air-conditioning phase sequence controller that is used for the automatic commutation function of having of three-phase air-conditioning.
Background technology
Existing three-phase air conditioner, all need when installing and using to be connected on the power supply by certain phase sequence arbitrarily earlier at every turn,, adjust phase sequence again when the machine cisco unity malfunction, the very hidden or pretty troublesome use occasion of a lot of inconveniences, particularly power supply wiring of having operated.
The patent No. 02110043.8 provides a kind of power phase automatic regulator of three-phase air conditioner, it is by anti-phase protector 11, main contacts is parallel to three-way power line R, S, on the T two A.C. contactor 14 that commutates, 15 constitute, described commutation A.C. contactor 14, the connected mode of 15 main contacts is: the main contacts 1 of A.C. contactor 14,3,5 with the main contacts 1 of A.C. contactor 15,3,5 is in parallel in twos in regular turn, the main contacts 2 of A.C. contactor 14,4,6 with the main contacts 2 of A.C. contactor 15,6,4 connect three phase electric machine after the parallel connection in twos in regular turn, if power supply is pressed R, S, the power supply of T three phase sequences, then during A.C. contactor 14 adhesives, motor just changes; When A.C. contactor 15 adhesives, the motor counter-rotating.
Described anti-phase protector 11 be by be connected to R mutually and the resistance R 1 between the center line, S mutually and the capacitor C 1 between the center line, T constitute with the institute of the coils from parallel connection of coils of relay 16 mutually and after the series connection of resistance R 2 between the center line and capacitor C 2; the normally-closed contact with common port C 17 of described relay 16 connects output B; the normally opened contact with common port C 18 of described relay 16 connects output terminals A; when R, S, the reversal connection of T phase sequence, the operating state of described relay 16 will change.The output terminals A of described anti-phase protector 11 and B are connected magnet exciting coil C1, the C2 of A.C. contactor 14,15 respectively; another termination zero-power line of magnet exciting coil C1, C2; the output C of described anti-phase protector 11 connects power supply; when the phase sequence reversal connection; anti-phase protector 11 will change the operating state of two commutation A.C. contactors 14,15, make the phase sequence that puts on the motor change correct phase sequence automatically into.Can not burn compressor electric motor, long service life saves time conveniently.Can be widely used in the various three phase mains air conditioners.But also there is following defective in the power phase automatic regulator of the three-phase air conditioner that this patent provided:
This utility model realizes the phase sequence conversion of two commutation A.C. contactors 14,15 by the switch on and off of relay 16, the power phase automatic regulator of the three-phase air conditioner of this employing relay control, need enough big power and could drive relay, therefore have the big problem of energy consumption.
The relay life-span is short, noise is big.
The utility model content
Technical problem to be solved in the utility model is at the above-mentioned deficiency of prior art, and to provide the air-conditioning phase sequence controller with automatic commutation function that a kind of energy consumption is little, the life-span is long.
Air-conditioning phase sequence controller with automatic commutation function provided by the utility model is realized by following technical scheme.
A kind of air-conditioning phase sequence controller with automatic commutation function, comprise control unit and the two commutation threephase switches that are connected three phase mains and motor, wherein said control unit comprises: the phase sequence detection module, driver module and main control unit, described main control unit connects described phase sequence detection module and driver module, described phase sequence detection module detects the phase sequence of use occasion three phase mains and send main control unit, main control unit compares according to the phase sequence of detected phase sequence of detection module and air-conditioning requirement, adjust the break-make of two commutation threephase switches according to comparative result by driver module, thereby guarantee power phase and its requirement consistent on the air conditioner.
Except that above-mentioned essential features, in specific implementation process, also can further replenish following technology contents.
Aforesaid air-conditioning phase sequence controller with automatic commutation function, wherein: described two commutation threephase switch electrical interlockses.
Aforesaid air-conditioning phase sequence controller with automatic commutation function, wherein said two commutation threephase switches are two commutation A.C. contactor A, B, and the main contacts input A1 of described A.C. contactor A, A2, A3 meet power supply A, B, C respectively with after main contacts input B1, B2, the B3 of A.C. contactor B are connected in regular turn; The main contacts output terminals A 4 of described A.C. contactor A, A5, A6 respectively with the three phase electric machine that connects air-conditioning after main contacts output B4, B6, the B5 of A.C. contactor B are connected in regular turn; The magnet exciting coil of described A.C. contactor A connects driver module by the normally closed auxiliary contact B4 of A.C. contactor B; The magnet exciting coil of described A.C. contactor B connects driver module by the normally closed auxiliary contact A4 of A.C. contactor A, constitutes electrical interlocks.
Aforesaid air-conditioning phase sequence controller with automatic commutation function, wherein said two commutation threephase switches are two commutation three-phase electronic switches, comprising three-phase fet switch or three-phase IGBT switch or three-phase controllable silicon switch; The control utmost point of described two commutation three-phase electronic switches connects driver module respectively, and driver module only has one group of three-phase electronics switch conduction, the formation electrical interlocks at every turn.
Aforesaid air-conditioning phase sequence controller with automatic commutation function, wherein said phase sequence detection module is the Y type three-phase equilibrium halfwave rectifier load that is connected on the three-phase power line, each of described Y type three-phase equilibrium halfwave rectifier load is the series circuit that is made of rectifier diode, reactance component and photoelectric coupled device mutually, the output plus terminal of described photoelectric coupled device is just connecing power supply by resistance, negativing ending grounding, during work, give the square-wave pulse that main control unit is separated by 120 degree phase differences respectively at the output plus terminal of each phase photoelectric coupled device and the tie point of resistance.
Aforesaid air-conditioning phase sequence controller with automatic commutation function, wherein said main control unit is the microcontroller on the air-conditioning computer plate.
A kind of air-conditioning phase sequence controller with automatic commutation function that the utility model provides compared with prior art has the following advantages:
1, easy to install, do not need Installation and Debugging personnel adjustment phase sequence.Guaranteeing that the three-phase air conditioner inserts power supply by any phase sequence can both operate as normal, has stopped the problem that need debug when installing and using.
2, the microcontroller that utilizes air conditioner computer plate need not to add in addition control device as main control unit.
3, the phase sequence detection module adopts the Y type three-phase equilibrium halfwave rectifier load that is connected on the three-phase power line, send main control unit by photoelectric coupled device with the three-phase square wave signal, and power demand is minimum.
4, adopt contactless switch long service life, noise low.
For architectural feature of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is the circuit diagram of the power phase automatic regulator of existing three-phase air conditioner.
Fig. 2 is the circuit diagram of the anti-phase protector in the power phase automatic regulator of existing three-phase air conditioner.
Fig. 3 is the circuit diagram that the utlity model has the air-conditioning phase sequence controller of automatic commutation function.
Fig. 4 is the circuit diagram that the utlity model has the phase sequence detection module in the air-conditioning phase sequence controller of automatic commutation function.
Fig. 5 is the circuit diagram of a kind of embodiment that the utlity model has the air-conditioning phase sequence controller of automatic commutation function.
Fig. 6 is the workflow diagram that the utlity model has the air-conditioning phase sequence controller of automatic commutation function.
Embodiment
Fig. 3 is a kind of air-conditioning phase sequence controller with automatic commutation function provided by the utility model, comprise control unit 20 and the two commutation threephase switches 30 that are connected three phase mains and motor, wherein said control unit 20 comprises: phase sequence detection module 21, driver module 22 and main control unit 23, described main control unit 23 connects described phase sequence detection module 21 and driver module 22, the phase sequence that described phase sequence detection module 21 detects the use occasion three phase mains is sent main control unit 23, main control unit 23 compares according to the phase sequence of detection module 21 detected phase sequences and air-conditioning requirement, adjust the break-make of two commutation threephase switches 30 according to comparative result by driver module 22, thereby guarantee power phase and its requirement consistent on the air conditioner.
Further, described two commutation threephase switch electrical interlockses cause short circuit to prevent two commutation threephase switch conductings simultaneously.
Fig. 5 is the circuit diagram of a kind of embodiment that the utlity model has the air-conditioning phase sequence controller of automatic commutation function.As shown in the figure, described two commutation threephase switches 30 are two commutation A.C. contactor A, B, and the main contacts input A1 of described A.C. contactor A, A2, A3 are connected power supply A, B, C in regular turn with main contacts input B1, B2, the B3 of A.C. contactor B respectively; The main contacts output terminals A 4 of described A.C. contactor A, A5, A6 respectively with the three phase electric machine that connects air-conditioning after main contacts output B4, B6, the B5 of A.C. contactor B are connected in regular turn; The magnet exciting coil AL of described A.C. contactor A connects driver module by the normally closed auxiliary contact BB of A.C. contactor B; Main control unit is by the break-make of driver module control magnet exciting coil.The magnet exciting coil BL of described A.C. contactor B connects driver module by the normally closed auxiliary contact AB of A.C. contactor A, constitutes electrical interlocks.Main control unit 23 is by the break-make of driver module 22 control magnet exciting coils; When the magnet exciting coil of A.C. contactor A gets electric adhesive, normally closed auxiliary contact AB will open a way, and cut off the magnet exciting coil of A.C. contactor B and being connected of driver module; Otherwise the magnet exciting coil of A.C. contactor B gets electric adhesive, and normally closed auxiliary contact BB will open a way, and cuts off the magnet exciting coil of A.C. contactor A and being connected of driver module, prevents to cause power supply short circuit because of two A.C. contactor A, B adhesive simultaneously.
There are mechanical breakdowns such as contact rapid wear in the starting device of motor of above-mentioned this employing contactor control.For overcoming this defective, two commutation threephase switches described in the utility model can also be two commutation three-phase electronic switches, comprising three-phase fet switch or three-phase IGBT switch or three-phase controllable silicon switch; The control utmost point of described two commutation three-phase electronic switches is the two-way output signal of driver module respectively, the two-way output signal of described driver module 22 can be produced by the two-way output of flip and flop generator, to guarantee that one group of three-phase electronics switch conduction is only arranged at every turn, constitute electrical interlocks.
The utlity model has automatic commutation function air-conditioning phase sequence controller workflow as shown in Figure 6:
1, program begins;
2, detecting power phase---main control unit 23 is gathered the phase sequential signal of field of employment three phase mains by detecting unit 21;
3, relatively whether power phase is identical with the air-conditioning phase sequence--and the phase sequence that phase sequential signal that-main control unit 23 collects according to detecting unit 21 and air conditioner require compares;
4, driving switch---when power phase and air-conditioning phase sequence require when identical, make forward three-phase electronic switch A or three-phase ac contactor A conducting, reverse three-phase electronic switch B or three-phase ac contactor B are disconnected by driver element 22; When power phase and air-conditioning phase sequence require to make reverse three-phase electronic switch B or three-phase ac contactor B conducting, forward three-phase electronic switch A or three-phase ac contactor A are disconnected by driver element 22 when inequality.Thereby guarantee no matter the power phase of use occasion is how air conditioner can both operate as normal;
5, finish.
Described phase sequence detection module 21 as shown in Figure 4, it is the Y type three-phase equilibrium halfwave rectifier load that is connected on the three-phase power line, each of described Y type three-phase equilibrium halfwave rectifier load is the series circuit that is made of rectifier diode D, reactance component X and photoelectric coupled device U mutually, the output plus terminal of described photoelectric coupled device U is just connecing power supply by resistance R, negativing ending grounding, during work, give the square-wave pulse that main control unit 23 is separated by 120 degree phase differences respectively at the output anode of each phase photoelectric coupled device U and the tie point of resistance R.The concrete course of work is as follows:
Three phase mains is every to pass through rectifier diode D and reactance component X (gets back to zero line for current-limiting resistance (also can be wattless components such as electric capacity or inductance) and high pressure optocoupler shown in the figure mutually, output at the high pressure optocoupler will produce make-and-break signal, high pressure optocoupler negative pole of output end pin ground connection, high pressure optocoupler output head anode pin connects+the 5V power supply through current-limiting resistance R, will generate square-wave signal at high pressure optocoupler output head anode pin so, and every phase signals all can have the phase difference of 120 degree, can judge the phase sequence of power supply according to the order of phase difference.
Described main control unit is the microcontroller on the air-conditioning computer plate.
Be provided with the air conditioner of the utility model phase sequence controller, inserting power supply by any phase sequence can both operate as normal, has stopped the problem that need debug when installing and using.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art, in not breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be to any simple modification that above embodiment did according to technical spirit of the present utility model, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.
Claims (6)
1, a kind of air-conditioning phase sequence controller with automatic commutation function, comprise control unit and the two commutation threephase switches that are connected three phase mains and motor, it is characterized in that described control unit comprises: the phase sequence detection module, driver module and main control unit, described main control unit connects described phase sequence detection module and driver module, described phase sequence detection module detects the phase sequence of use occasion three phase mains and send main control unit, main control unit compares according to the phase sequence of detected phase sequence of detection module and air-conditioning requirement, adjust the break-make of two commutation threephase switches according to comparative result by driver module, thereby guarantee that power phase on the air conditioner is with desired consistent.
2, the air-conditioning phase sequence controller with automatic commutation function according to claim 1 is characterized in that described two commutation threephase switch electrical interlockses.
3, the air-conditioning phase sequence controller with automatic commutation function according to claim 1, it is characterized in that described two commutation threephase switches are two commutation A.C. contactor A, B, the main contacts input A1 of described A.C. contactor A, A2, A3 meet power supply A, B, C respectively with after main contacts input B1, B2, the B3 of A.C. contactor B are connected in regular turn; The main contacts output terminals A 4 of described A.C. contactor A, A5, A6 respectively with the three phase electric machine that connects air-conditioning after main contacts output B4, B6, the B5 of A.C. contactor B are connected in regular turn; The magnet exciting coil of described A.C. contactor A connects driver module by the normally closed auxiliary contact B4 of A.C. contactor B; The magnet exciting coil of described A.C. contactor B connects driver module by the normally closed auxiliary contact A4 of A.C. contactor A, constitutes electrical interlocks.
4, the air-conditioning phase sequence controller with automatic commutation function according to claim 1, it is characterized in that described two commutation threephase switches are two commutation three-phase electronic switches, comprising three-phase fet switch or three-phase IGBT switch or three-phase controllable silicon switch; The control utmost point of described two commutation three-phase electronic switches connects driver module respectively, and driver module only has one group of three-phase electronics switch conduction, the formation electrical interlocks at every turn.
5, air-conditioning phase sequence controller with automatic commutation function according to claim 1, it is characterized in that described phase sequence detection module is the Y type three-phase equilibrium halfwave rectifier load that is connected on the three-phase power line, each of described Y type three-phase equilibrium halfwave rectifier load is by rectifier diode mutually, the series circuit that reactance component and photoelectric coupled device constituted, the output plus terminal of described photoelectric coupled device is just connecing power supply by resistance, negativing ending grounding, during work, give the square-wave pulse that main control unit is separated by 120 degree phase differences respectively at the output plus terminal of each phase photoelectric coupled device and the tie point of resistance.
6, the air-conditioning phase sequence controller with automatic commutation function according to claim 1 is characterized in that described main control unit is the microcontroller on the air-conditioning computer plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201796704U CN201341018Y (en) | 2008-12-16 | 2008-12-16 | Air conditioner phase-sequence controller with automatic phase change function |
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| Application Number | Priority Date | Filing Date | Title |
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| CNU2008201796704U CN201341018Y (en) | 2008-12-16 | 2008-12-16 | Air conditioner phase-sequence controller with automatic phase change function |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101964619A (en) * | 2010-09-29 | 2011-02-02 | 浙江尔格科技有限公司 | Three-phase alternating current motor phase sequence discriminator |
| CN101699673B (en) * | 2009-12-07 | 2011-12-21 | 河南省电力公司许昌供电公司 | Novel manual phase modulator |
| CN103308727A (en) * | 2013-05-08 | 2013-09-18 | 嘉兴电力局 | Phase sequence switching device of three-phase alternating current tester |
| CN104390046A (en) * | 2014-12-03 | 2015-03-04 | 山东开创电气有限公司 | Mining EOV (electrically operated valve) control system with phase order protection function |
| CN104929966A (en) * | 2015-05-21 | 2015-09-23 | 珠海格力电器股份有限公司 | Device and control method for preventing centrifugal fan from reversing |
| CN105811391A (en) * | 2016-05-12 | 2016-07-27 | 石河子开发区巨盛丰科技有限公司 | Phase sequence adjustment apparatus, motor, electrically operated valve and automatic filter |
| CN108010295A (en) * | 2017-11-28 | 2018-05-08 | 指明集团有限公司 | Power network signal wireless transmitting system based on collection type current transformer |
| CN108008178A (en) * | 2017-11-28 | 2018-05-08 | 指明集团有限公司 | Wireless multifunctional power network signal Transmission system |
| CN108418232A (en) * | 2018-03-28 | 2018-08-17 | 南京新联能源技术有限责任公司 | Phase-change switch short circuit automatic bypass device |
| CN111426890A (en) * | 2020-04-22 | 2020-07-17 | 海信（山东）空调有限公司 | Phase sequence detection circuit, outdoor unit, air conditioner and control method |
| CN112217189A (en) * | 2019-07-10 | 2021-01-12 | 广东Tcl智能暖通设备有限公司 | Automatic adjusting circuit for phase sequence of three-phase power supply of air conditioner and air conditioner |
-
2008
- 2008-12-16 CN CNU2008201796704U patent/CN201341018Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699673B (en) * | 2009-12-07 | 2011-12-21 | 河南省电力公司许昌供电公司 | Novel manual phase modulator |
| CN101964619A (en) * | 2010-09-29 | 2011-02-02 | 浙江尔格科技有限公司 | Three-phase alternating current motor phase sequence discriminator |
| CN101964619B (en) * | 2010-09-29 | 2013-01-02 | 浙江尔格科技有限公司 | Three-phase alternating current motor phase sequence discriminator |
| CN103308727A (en) * | 2013-05-08 | 2013-09-18 | 嘉兴电力局 | Phase sequence switching device of three-phase alternating current tester |
| CN104390046A (en) * | 2014-12-03 | 2015-03-04 | 山东开创电气有限公司 | Mining EOV (electrically operated valve) control system with phase order protection function |
| CN104929966A (en) * | 2015-05-21 | 2015-09-23 | 珠海格力电器股份有限公司 | Device and control method for preventing centrifugal fan from reversing |
| CN105811391A (en) * | 2016-05-12 | 2016-07-27 | 石河子开发区巨盛丰科技有限公司 | Phase sequence adjustment apparatus, motor, electrically operated valve and automatic filter |
| CN108010295A (en) * | 2017-11-28 | 2018-05-08 | 指明集团有限公司 | Power network signal wireless transmitting system based on collection type current transformer |
| CN108008178A (en) * | 2017-11-28 | 2018-05-08 | 指明集团有限公司 | Wireless multifunctional power network signal Transmission system |
| CN108418232A (en) * | 2018-03-28 | 2018-08-17 | 南京新联能源技术有限责任公司 | Phase-change switch short circuit automatic bypass device |
| CN112217189A (en) * | 2019-07-10 | 2021-01-12 | 广东Tcl智能暖通设备有限公司 | Automatic adjusting circuit for phase sequence of three-phase power supply of air conditioner and air conditioner |
| CN111426890A (en) * | 2020-04-22 | 2020-07-17 | 海信（山东）空调有限公司 | Phase sequence detection circuit, outdoor unit, air conditioner and control method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20161216 |