Nothing Special   »   [go: up one dir, main page]

CN104850024B - The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method - Google Patents

The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method Download PDF

Info

Publication number
CN104850024B
CN104850024B CN201510239504.3A CN201510239504A CN104850024B CN 104850024 B CN104850024 B CN 104850024B CN 201510239504 A CN201510239504 A CN 201510239504A CN 104850024 B CN104850024 B CN 104850024B
Authority
CN
China
Prior art keywords
electric current
resistance
signal
current loop
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510239504.3A
Other languages
Chinese (zh)
Other versions
CN104850024A (en
Inventor
鲍殿生
陈建昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Guangdong Midea Refrigeration Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201510239504.3A priority Critical patent/CN104850024B/en
Publication of CN104850024A publication Critical patent/CN104850024A/en
Application granted granted Critical
Publication of CN104850024B publication Critical patent/CN104850024B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Air Conditioning Control Device (AREA)
  • Dc Digital Transmission (AREA)

Abstract

The invention belongs to power supply control technical field, there is provided the current ring communication of a kind of air conditioner and its outdoor unit and power-supplying circuit and method.For current ring communication and power-supplying circuit, on outdoor unit after electricity, the second output end for waking up control module controlling power circuit by electric current loop exports power supply, so that the master controller and other loads in outdoor unit can work on power, and when air conditioner shuts down, load in main controller controls outdoor unit is stopped, the second output end that electric current loop wakes up control module controlling power circuit stops output power supply, so as to cut off the power supply to the master controller of outdoor unit and other loads, so that the lower power consumption that outdoor unit is consumed when standby, and then the standby power of air conditioner can be reduced to meet low energy consumption requirement.

Description

The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method
Technical field
The invention belongs to power supply control technical field, more particularly to a kind of air conditioner and its outdoor unit current ring communication with Power-supplying circuit and method.
Background technology
At present, because countries in the world are progressively paid attention to environmental issue, the standby energy consumption requirement of higher standard is constantly released, because This each household electrical appliances producer all is being directed to reducing the standby energy consumption of household appliances.For air conditioner, because it generally comprises room Interior machine and outdoor unit, air conditioner are typically to provide power to outdoor unit by indoor set, if carrying out low-power consumption standby to air conditioner During design, it will usually by the way of indoor set carries out dump to outdoor unit, so that the complete power down of outdoor unit, so as to drop The stand-by power consumption of low outdoor unit.
But, if air conditioner is to be provided by outdoor unit in power supply (i.e. the power outlet of air conditioner is in outdoor), indoor set Load (such as indoor fan, stepper motor) provide power supply by outdoor unit, then indoor set and outdoor unit by live wire, zero line, Line and signal wire set up connection, and indoor set and outdoor unit are kept in communication by existing current-loop communication circuit, indoor set Master controller is the main control part of air conditioner, and the load of indoor set and outdoor unit is controlled by the master controller of indoor set System, the control signal of indoor set load is directly sent by the master controller of indoor set, and outdoor unit load (such as outdoor electric-controlled plate, Compressor, four-way valve, outdoor fan) control signal be then to be sent by the master controller of indoor set by current-loop communication circuit To the master controller of outdoor unit, then the operation loaded by the master controller of outdoor unit according to control signal control outdoor unit.Due to The complete machine power supply of air conditioner is provided by outdoor unit, when complete machine is in holding state, and the load in outdoor unit is still in band electrician Make state, therefore air conditioner can be caused high because of standby power, and low energy consumption requirement can not be met.
The content of the invention
It is an object of the invention to provide a kind of current ring communication of air-conditioner outdoor unit and power-supplying circuit, it is intended to solves Certainly existing air conditioner reason outdoor unit is powered and to occur standby power when standby high and can not meet asking for low energy consumption requirement Topic.
The present invention is achieved in that the current ring communication and power-supplying circuit of a kind of air-conditioner outdoor unit, and it includes Master controller in current ring communication module and signal backflow module, the outdoor unit passes through the current ring communication module, institute State signal backflow module, signal wire, live wire or current loop communication circuit and the indoor set in zero line, air conditioner room unit Main control chip carries out electric current loop communication；The first output end and the second output end of power circuit in the outdoor unit export confession The confession that load in power supply, the master controller and the outdoor unit is exported according to the second output end of the power circuit Power supply is worked on power；
The current ring communication also includes electric current loop with power-supplying circuit and wakes up control module；
The signal input part and the first signal output part that the electric current loop wakes up control module connect the electric current loop respectively The signal output part and signal input part of communication module, the electric current loop wake up the secondary signal output end connection institute of control module The input of signal backflow module is stated, the first of the power end connection power circuit of the electric current loop wake-up control module is defeated Go out end, the electric current loop wakes up the controlled end of the power control terminal connection power circuit of control module, and the electric current loop is called out The controlled end for control module of waking up connects the wake-up control end of the master controller；Signal wire and live wire or signal wire and zero line are made For electric current loop communication wire；
On the outdoor unit after electricity, when the current loop communication circuit is on the inside of the current ring communication module dispatcher's office During electric current communication signal, the electric current loop wakes up the indoor electric current that control module is received according to the current ring communication module Communication signal controls the second output end of the power circuit to export the power supply, and the indoor electric current is communicated into letter Number signal wire is back to by the signal module that flows back, the wake-up control end output control signal of the master controller makes described Electric current loop, which wakes up control module, to be stopped outputing signal to the signal backflow module, after the control signal is exported, the master The transmitting terminal of controller passes through the current ring communication module and signal backflow module dispatcher's office outer current communication signal To signal wire, the electric current loop wakes up control module and led to according to the outside electric current for being back to the current ring communication module Interrogating signal continues to control the second output end of the power circuit to export the power supply；
During the electric current loop is communicated, if the main control chip sends off signal to the master controller, Then the load in outdoor unit described in the main controller controls is stopped, and the current ring communication module is exporting the shutdown No signal exports to the electric current loop and wakes up control module after signal to the master controller, and the electric current loop wakes up control module It is stopped so that the second output end of the power circuit stops the output power supply.
Present invention also offers a kind of air conditioner, it is included in indoor set and outdoor unit, and the outdoor unit with above-mentioned Current ring communication and power-supplying circuit.
Present invention also offers a kind of current ring communication based on above-mentioned current ring communication and power-supplying circuit and power supply Control method, it comprises the following steps：
It is electric on outdoor unit, and when outdoor unit and indoor set progress electric current loop communication, the master controller in the outdoor unit By waking up control module and institute by current ring communication module, signal backflow module, signal wire, live wire or zero line, electric current loop State electric current communication loop and the main control chip progress electric current in the indoor set that the current loop communication circuit in indoor set is constituted Ring is communicated；
During the electric current loop is communicated, shut down if the main control chip is sent by the electric current communication loop Signal to the master controller, the then load in outdoor unit described in the main controller controls is stopped；
The current ring communication module is exported to described in the output off signal to no signal after the master controller Electric current loop wakes up control module, and the electric current loop wakes up control module and is stopped so that the second output end of the power circuit Stop the output power supply.
The present invention includes current ring communication module, signal backflow module and electric current loop by being used in air-conditioner outdoor unit The current ring communication and power-supplying circuit of control module are waken up, on outdoor unit after electricity, control module control is waken up by electric current loop The second output end output power supply of power circuit processed, so that the master controller and other loads in outdoor unit can go up electrician Make, and machine is sent after off signal to outdoor unit indoors, the load in main controller controls outdoor unit is stopped, and electric current Ring wakes up control module and is stopped (i.e. indoor set is sent after off signal to outdoor unit) so that the second output of power circuit End stops output power supply, so that the power supply to the master controller in outdoor unit and other loads is cut off, so that outdoor unit exists Lower power consumption that is standby or surprisingly disconnecting communication with indoor set and consumed during safety shutdown, and then treating for air conditioner can be reduced Acc power is to meet low energy consumption requirement.
Brief description of the drawings
Fig. 1 is the function structure chart of current ring communication provided in an embodiment of the present invention and power-supplying circuit；
Fig. 2 is another function structure chart of current ring communication provided in an embodiment of the present invention and power-supplying circuit；
Fig. 3 is the another function structure chart of current ring communication provided in an embodiment of the present invention and power-supplying circuit；
Fig. 4 is the implementation process figure of current ring communication provided in an embodiment of the present invention and method for controlling power supply；
Fig. 5 is another implementation process figure of current ring communication provided in an embodiment of the present invention and method for controlling power supply；
Fig. 6 is the another implementation process figure of current ring communication provided in an embodiment of the present invention and method for controlling power supply；
Fig. 7 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 1 and power-supplying circuit；
Fig. 8 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 1 and power-supplying circuit；
Fig. 9 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 1 and power-supplying circuit；
Figure 10 is the current ring communication and the function structure chart of power-supplying circuit in actual applications shown in Fig. 1；
Figure 11 is the receiving terminal of the master controller of the outdoor unit involved by the embodiment of the present invention and the signal waveform of transmitting terminal Figure；
Figure 12 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 2 and power-supplying circuit；
Figure 13 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 2 and power-supplying circuit；
Figure 14 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 2 and power-supplying circuit；
Figure 15 is the current ring communication and the function structure chart of power-supplying circuit in actual applications shown in Fig. 2；
Figure 16 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 3 and power-supplying circuit；
Figure 17 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 3 and power-supplying circuit；
Figure 18 is a kind of exemplary circuit structure chart of current ring communication shown in Fig. 3 and power-supplying circuit；
Figure 19 is the current ring communication and the function structure chart of power-supplying circuit in actual applications shown in Fig. 3；
Figure 20 is the structural representation of the air conditioner including electric current loop Voltage stabilizing module of corresponding diagram 1；
Figure 21 is the structural representation of the air conditioner including electric current loop Voltage stabilizing module of corresponding diagram 2；
Figure 22 is the structural representation of the air conditioner including electric current loop Voltage stabilizing module of corresponding diagram 3；
Figure 23 is another structural representation of the air conditioner including electric current loop Voltage stabilizing module of corresponding diagram 1；
Figure 24 is another structural representation of the air conditioner including electric current loop Voltage stabilizing module of corresponding diagram 2；
Figure 25 is another structural representation of the air conditioner including electric current loop Voltage stabilizing module of corresponding diagram 3；
Figure 26 is the exemplary block diagram of the air conditioner shown in Figure 20；
Figure 27 is the exemplary block diagram of the air conditioner shown in Figure 21；
Figure 28 is the exemplary block diagram of the air conditioner shown in Figure 22；
Figure 29 is the exemplary block diagram of the air conditioner shown in Figure 23；
Figure 30 is the exemplary block diagram of the air conditioner shown in Figure 24；
Figure 31 is the exemplary block diagram of the air conditioner shown in Figure 25.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
In embodiments of the present invention, air conditioner includes indoor set and outdoor unit, and there is indoor set main control chip, electric current loop to lead to Believe circuit and load, outdoor unit, which has in master controller, power circuit and load, and outdoor unit, has current ring communication and power supply Control circuit.
As shown in figure 1, current ring communication includes current ring communication module 101 with power-supplying circuit 100 and signal flows back Master controller 200 in module 102, outdoor unit passes through current ring communication module 101, signal backflow module 102, signal wire S, fire Line L or current loop communication circuit 500 (internal structure is as shown in Figure 1) and indoor set in zero line N, air conditioner room unit master control Chip 600 carries out electric current loop communication；The the first output end VCC1 and the second output end VCC2 of power circuit 300 in outdoor unit are equal Power supply (power supply that the first output end VCC1 and the second output end VCC2 are exported is that possess identical voltage) is exported, Load in master controller 200 and outdoor unit is entered according to the second output end VCC2 of power circuit 300 power supplies exported Row works on power.
Wherein, the internal transmitting terminal and internal receiving terminal of current ring communication module 101 connect connecing for master controller 200 respectively Receiving end RX and transmitting terminal TX, the external transmitting terminal and external receiving terminal of current ring communication module 101 connect signal backflow mould respectively The input and live wire L of block 102 or the respectively input and zero line N of connection signal backflow module 102, signal backflow module 102 output end connection signal wire S, the power end of current ring communication module 101 connects the first output end of power circuit 300 VCC1 or the second output end VCC2.Main power source connection live wire L, zero line N and the ground wire GND of outdoor unit.
Current ring communication also includes electric current loop with power-supplying circuit 100 and wakes up control module 103.
Electric current loop wakes up the signal input part and the first signal output part and secondary signal output end difference of control module 103 The signal output part and signal input part of current ring communication module 101 are connected, electric current loop wakes up the secondary signal of control module 103 The input of output end connection signal backflow module 102, electric current loop wakes up the power end connection power circuit of control module 103 300 the first output end VCC1, electric current loop wakes up the controlled end of the power control terminal connection power circuit 300 of control module 103, Electric current loop wakes up the wake-up control end P1 of the controlled end connection master controller 200 of control module 103；Signal wire S and live wire L or Signal wire S and zero line N are used as electric current loop communication wire.
On outdoor unit after electricity, when current loop communication circuit 500 is logical to the dispatcher's office's internal current of current ring communication module 101 When interrogating signal, electric current loop wakes up the indoor electric current communication signal that control module 103 is received according to current ring communication module 101 The second output end VCC2 output power supplies of controlling power circuit 300, and indoor electric current communication signal is returned by signal Flow module 102 is back to signal wire S；The wake-up control end P1 output control signals of master controller 200 make electric current loop wake up control Module 103 stops outputing signal to signal backflow module 102, after above-mentioned control signal is exported, the transmitting terminal of master controller 200 TX flows back the transmission output outside electric current communication signal of module 102 to signal wire S by current ring communication module 101 and signal, Electric current loop wakes up control module 103 to be continued to control according to the outside electric current communication signal for being back to current ring communication module 101 The second output end VCC2 output power supplies of power circuit 300.
For above-mentioned on outdoor unit after electricity, the course of work of current ring communication and power-supplying circuit 100 is specific as follows：
On outdoor unit after electricity, when current loop communication circuit 500 is communicated by live wire L or zero line N dispatcher's offices internal current During signal to current ring communication module 101, current ring communication module 101 exports indoor electric current communication signal to master control respectively Device 101 and electric current loop processed wake up control module 103, and electric current loop wakes up control module 103 and passes through indoor electric current communication signal Signal backflow module 102 is back to signal wire S, and electric current loop wakes up control module 103 according to indoor electric current communication signal control The second output end VCC2 output power supplies of power circuit 300 processed；The wake-up control end P1 output controls letter of master controller 200 Number make electric current loop wake up control module 103 to stop outputing signal to signal backflow module 102, it is main after the control signal is exported The transmitting terminal TX output outside electric current communication signals of controller 200, current ring communication module 101 is flowed back module by signal 102 export outside electric current communication signal to signal wire S, and the outside electric current communication that live wire L or zero line N are flowed back is believed Number output to electric current loop wake up control module 103, electric current loop wake up control module 103 according to the outside electric current communication signal after The second output end VCC2 output power supplies of continuous controlling power circuit 300, and outside electric current communication signal is back to electricity Ring communication module 101 is flowed, master controller 200 is thence through by current ring communication module 101, signal backflow module 102, signal wire S, live wire L or zero line N, electric current loop wake up electric current communication loop that control module 103 and current loop communication circuit 500 constitute with Main control chip 600 in indoor set carries out electric current loop communication.
During above-mentioned electric current loop is communicated, if main control chip 600 sends off signal to master controller 200, Load in the control outdoor unit of master controller 200 is stopped and (specifically loads and be stopped according to default close pattern), electricity The no signal after output off signal to master controller 200 of stream ring communication module 101, which is exported to electric current loop, wakes up control module 103, then electric current loop wake up control module 103 be stopped so that power circuit 300 the second output end VCC2 stop output supply Power supply.Wherein, above-mentioned default close pattern specifically refers to different the loads required closing sequence followed, example when closed Such as, it is in air conditioner under refrigeration mode, when the control compressor of master controller 200 is closed, simultaneously four-way valve can be controlled to close； And if air conditioner is under heating mode, then master controller 200 needs to close in control compressor, and it is delayed a period of time (such as 2 minutes) control four-way valve to close again, can so avoid under heating mode leading because simultaneously closing off compressor and four-way valve The problem of causing air-conditioning duct internal pressure uneven and damage compressor.
Furthermore, as shown in Fig. 2 the wake-up control end P1 of master controller 200 also connects with the emergency flight control end of power circuit 300 Connect.During above-mentioned electric current loop is communicated, when electric current loop communication wire disconnects, the no signal of current ring communication module 101 Output to electric current loop wakes up control module 103, and electric current loop wakes up control module 103 and is stopped, from the reception of master controller 200 When end RX does not receive indoor electric current communication signal, the wake-up control end P1 of master controller 200 persistently exports conducting letter Number power supply is continued to output with the second output end VCC2 of controlling power circuit 300.
If the time that master controller 200 does not receive indoor electric current communication signal reaches preset time period, master control Load in the control of device 200 outdoor unit processed is stopped and (specifically loads and be stopped according to default close pattern), and master control Second output end VCC2 of the wake-up control end P1 output shutdown signals controlling power circuit 300 of device 200 processed stops output power supply Power supply.
And do not disconnected in electric current loop communication wire, and above-mentioned electric current loop is communicated when being normally carried out, except being called out by electric current loop The second output end VCC2 output power supplies of control module 103 of waking up controlling power circuit 300, the wake-up control of master controller 200 End P1 processed also to power circuit 300, so as to seamless when electric current loop communication wire disconnects take over by sustainable output Continuity signal The second output end VCC2 that electric current loop wakes up the controlling power circuit 300 of control module 103 continues to output power supply.
In addition, again as shown in figure 3, the power control terminal P2 of master controller 200 and power circuit 300 emergency flight control end connect Connect.During above-mentioned electric current loop is communicated, when electric current loop communication wire disconnects, the no signal of current ring communication module 101 Output to electric current loop wakes up control module 103, and electric current loop wakes up control module 103 and is stopped, from the reception of master controller 200 When end RX does not receive indoor electric current communication signal, the power control terminal P2 of master controller 200 persistently exports conducting letter Number power supply is continued to output with the second output end VCC2 of controlling power circuit 300.
If the time that master controller 200 does not receive indoor electric current communication signal reaches preset time period, master control Load in the control of device 200 outdoor unit processed is stopped and (specifically loads and be stopped according to default close pattern), and master control Second output end VCC2 of the power control terminal P2 output shutdown signals controlling power circuit 300 of device 200 processed stops output power supply Power supply.
And do not disconnected in electric current loop communication wire, and above-mentioned electric current loop is communicated when being normally carried out, except being called out by electric current loop The second output end VCC2 output power supplies of control module 103 of waking up controlling power circuit 300, the power supply control of master controller 200 End P2 processed also to power circuit 300, so as to seamless when electric current loop communication wire disconnects take over by sustainable output Continuity signal The second output end VCC2 that electric current loop wakes up the controlling power circuit 300 of control module 103 continues to output power supply.
The embodiment of the present invention includes current ring communication module 101, signal backflow mould by being used in air-conditioner outdoor unit Block 102 and electric current loop wake up the current ring communication and power-supplying circuit of control module 103, on outdoor unit after electricity, by electric current Ring wakes up the second output end VCC2 output power supplies of the controlling power circuit 300 of control module 103, so that the master in outdoor unit Controller 200 and other loads can be worked on power, and machine is sent after off signal to outdoor unit indoors, master controller 200 Control outdoor unit in load be stopped according to default close pattern, and electric current loop wake up control module 103 be stopped with The second output end VCC2 of power circuit 300 is set to stop output power supply, so as to cut off to the master controller 200 in outdoor unit With the power supply of other loads, so that the lower power consumption that outdoor unit is consumed when standby, and then the standby work(of air conditioner can be reduced Rate is to meet low energy consumption requirement.In addition, when electric current loop communication wire disconnects, master controller 200 can equally control outdoor unit In load be stopped, and then output shutdown signal so that power circuit 300 the second output end VCC2 stop output supply Power supply, so as to make the payload security shutdown in outdoor unit when communicating accidental interruption, and cuts off again after control load shutdown To the master controller in outdoor unit and the power supply of other loads, the power consumption of outdoor unit can be equally reduced, treating for air conditioner is reduced Acc power is to meet low-power consumption requirement.
Based on above-mentioned current ring communication and power-supplying circuit 100, the embodiment of the present invention additionally provides a kind of air conditioner The current ring communication and method for controlling power supply of outdoor unit, as shown in figure 4, it comprises the following steps：
S1. it is electric on outdoor unit, and when outdoor unit and indoor set progress electric current loop communication, the master controller in outdoor unit 200 call out thence through by current ring communication module 101, signal backflow module 102, signal wire S, live wire L or zero line N, electric current loop The electric current communication loop that current loop communication circuit 500 in control module 103 of waking up and indoor set is constituted and the master in indoor set Control chip 600 and carry out electric current loop communication；
S2. during electric current loop is communicated, if main control chip 600 sends off signal extremely by electric current communication loop Master controller 200, the then load in the control of master controller 200 outdoor unit is stopped；
S3. the no signal after output off signal to master controller 200 of current ring communication module 101, which is exported to electric current loop, calls out Awake control module 103, electric current loop wakes up control module 103 and is stopped so that the second output end VCC2 of power circuit 300 stops Only export power supply；
Furthermore, current ring communication and power-supplying circuit 100 shown in corresponding diagram 2 disconnect for electric current loop connection Situation, as shown in figure 5, after step S1, above-mentioned current ring communication and method for controlling power supply are further comprising the steps of：
S4. during electric current loop is communicated, when electric current loop communication wire disconnects, the nothing of current ring communication module 101 Signal output to electric current loop wakes up control module 103, and electric current loop wakes up control module 103 and is stopped；
S5. when the receiving terminal RX of master controller 200 does not receive indoor electric current communication signal, master controller 200 wake-up control end P1 persistently exports Continuity signal so that the second output end VCC2 of power circuit 300 continues to output power supply Power supply；
If S6. master controller 200 does not receive time of indoor electric current communication signal and reaches preset time period, lead Load in the control outdoor unit of controller 200 is stopped, and the wake-up control end P1 output shutdown signal controls of master controller 200 Second output end VCC2 of power circuit 300 processed stops output power supply.
Wherein, step S2 to step S3 is the off signal for being normally carried out and being sent according to indoor set in electric current loop communication Outdoor unit is set to enter the process of holding state, step S4 to step S6 is that electric current loop communicates accidental interruption and pacified to outdoor unit The process of complete closedown, two processes are arranged side by side, and in the absence of successively execution relation.
In addition, current ring communication and power-supplying circuit 100 shown in corresponding diagram 3, disconnect for electric current loop connection Situation, as shown in fig. 6, after step S1, above-mentioned current ring communication and method for controlling power supply are further comprising the steps of：
S7. during electric current loop is communicated, when electric current loop communication wire disconnects, the nothing of current ring communication module 101 Signal output to electric current loop wakes up control module 103, and electric current loop wakes up control module 103 and is stopped；
S8. when the receiving terminal RX of master controller 200 does not receive indoor electric current communication signal, master controller 200 power control terminal P2 persistently exports Continuity signal so that the second output end VCC2 of power circuit 300 continues to output power supply Power supply；
If S9. master controller 200 does not receive time of indoor electric current communication signal and reaches preset time period, lead Load in the control outdoor unit of controller 200 is stopped, and the power control terminal P2 output shutdown signal controls of master controller 200 Second output end VCC2 of power circuit 300 processed stops output power supply.
Wherein, step S2 to step S3 is the off signal for being normally carried out and being sent according to indoor set in electric current loop communication Outdoor unit is set to enter the process of holding state, step S7 to step S9 is that electric current loop communicates accidental interruption and pacified to outdoor unit The process of complete closedown, two processes are arranged side by side, and in the absence of successively execution relation.
For the current ring communication and power-supplying circuit shown in Fig. 1, current ring communication module 101, letter included by it Number backflow module 102 and electric current loop wake up control module 103 internal structure it is specific as follows：
As shown in Fig. 7, Fig. 8 and Fig. 9, current ring communication module 101 includes：
First optocoupler IC1, the second optocoupler IC2, first resistor R1, the first NPN type triode Q1, second resistance R2 and Three resistance R3；
The anode and negative electrode of first optocoupler IC1 light emitting diode are respectively the external reception of current ring communication module 101 Hold and signal output part, the colelctor electrode of the first optocoupler IC1 phototriode is with the common contact of first resistor R1 first end The power end of current ring communication module 101, the transmitting extremely current ring communication module 101 of the first optocoupler IC1 phototriode Internal transmitting terminal, first resistor R1 the second end connects the anode of the second optocoupler IC2 light emitting diode, the second optocoupler IC2 Negative electrode connect the first NPN type triode Q1 colelctor electrode, second resistance R2 first end and 3rd resistor R3 first end are total to The first NPN type triode Q1 base stage is connected to, second resistance R2 the second end and the first NPN type triode Q1 emitter stage connect altogether Yu Di, 3rd resistor R3 the second end are the internal receiving terminal of current ring communication module 101, the second optocoupler IC2 photosensitive three pole The signal input part of the current collection of pipe extremely current ring communication module 101, the transmitting of the second optocoupler IC2 phototriode is extremely electric Flow the external transmitting terminal of ring communication module 101.
As shown in Fig. 7, Fig. 8 and Fig. 9, signal backflow module 102 includes the 4th resistance R4 and the first diode D1, the 4th electricity Input of the R4 first end for signal backflow module 102 is hindered, the 4th resistance R4 the second end connects the first diode D1 sun Pole, the first diode D1 negative electrode is the output end of signal backflow module 102.
The internal structure that electric current loop wakes up control module 103 can specifically be realized by three kinds of modes, respectively such as Fig. 7, Fig. 8 And shown in Fig. 9.Wherein, for Fig. 7, electric current loop, which wakes up control module 103, to be included：
3rd optocoupler IC3, the 4th optocoupler IC4, the 5th resistance R5, the 6th resistance R6, the second NPN type triode Q2, the 7th Resistance R7 and the 8th resistance R8；
The anode of 3rd optocoupler IC3 light emitting diode is the signal input part that electric current loop wakes up control module 103, the 3rd The colelctor electrode of the negative electrode of optocoupler IC3 light emitting diode and the 4th optocoupler IC4 phototriode connects the common contact to be formed altogether The first signal output part of control module 103, the transmitting extremely electric current of the 3rd optocoupler IC3 phototriode are waken up for electric current loop Ring wakes up the power control terminal of control module 103, and the transmitting extremely electric current loop of the 4th optocoupler IC4 phototriode wakes up control The secondary signal output end of module 103, the 5th resistance R5 first end connects the current collection of the 3rd optocoupler IC3 phototriode The common contact of pole, the 5th resistance R5 the second end and the 6th resistance R6 first end wakes up the electricity of control module 103 for electric current loop Source, the 6th resistance R6 the second end and the anode of the 4th optocoupler IC4 light emitting diode are connected to the second NPN type triode Q2 altogether Colelctor electrode, the 7th resistance R7 first end and the 8th resistance R8 first end be connected to the second NPN type triode Q2 base stage altogether, 7th resistance R7 first end is the controlled end that electric current loop wakes up control module 103, the 8th resistance R8 the second end and the 2nd NPN The negative electrode of type triode Q2 emitter stage and the 4th optocoupler IC4 light emitting diode is connected to ground altogether.
For Fig. 8, electric current loop, which wakes up control module 103, to be included：
5th optocoupler IC5, the 9th resistance R9, the first relay RY1, the 3rd NPN type triode Q3, the tenth resistance R10 with And the 11st resistance R11；
The anode of 5th optocoupler IC5 light emitting diode is the signal input part that electric current loop wakes up control module 103, the 5th The negative electrode of optocoupler IC5 light emitting diode and the first relay RY1 normally-closed contact 4 connect the common contact to be formed for electric current loop altogether The first signal output part of control module 103 is waken up, the first relay RY1 stationary contact 3 wakes up control module 103 for electric current loop Secondary signal output end, the first of the first relay RY1 controls the common contact of the resistance R9 of contact 1 and the 9th first end to be electricity The power end that ring wakes up control module 103 is flowed, the 9th resistance R9 the second end connects the collection of the 5th optocoupler IC5 phototriode Electrode, the transmitting extremely electric current loop of the 5th optocoupler IC5 phototriode wakes up the power control terminal of control module 103, first The relay RY1 sky of normally opened contact 5 connects, and the 3rd NPN type triode Q3 colelctor electrode connects the first relay RY1 the second control Contact 2, the tenth resistance R10 first end wakes up the controlled end of control module 103, the tenth resistance R10 the second end for electric current loop Be connected to the 3rd NPN type triode Q3 base stage altogether with the 11st resistance R11 first end, the 11st resistance R11 the second end with 3rd NPN type triode Q3 emitter stage is connected to ground altogether.
For Fig. 9, electric current loop, which wakes up control module 103, to be included：
Second relay RY2, the 6th optocoupler IC6, the 17th resistance R17, the 18th resistance R18, the 5th NPN type triode Q5, the 19th resistance R19 and the 20th resistance R20；
Second relay RY2 the first control contact 1 is the signal input part that electric current loop wakes up control module 103, second The second of relay RY2 controls the colelctor electrode of contact 2 and the 6th optocoupler IC6 phototriode to connect the common contact to be formed altogether Electric current loop wakes up the first signal output part of control module 103, and the second relay RY2 stationary contact 3 wakes up control for electric current loop The power control terminal of module 103, the transmitting extremely electric current loop of the 6th optocoupler IC6 phototriode wakes up control module 103 Secondary signal output end, the 17th resistance R17 first end connects the second relay RY2 normally opened contact 4, the second relay The RY2 sky of normally opened contact 5 connects, and the common contact of the 17th resistance R17 the second end and the 18th resistance R18 first end is electric current Ring wakes up the power end of control module 103, the 18th resistance R18 the second end and the sun of the 6th optocoupler IC6 light emitting diode The 5th NPN type triode Q5 colelctor electrode, the 19th resistance R19 first end and the first of the 20th resistance R20 are extremely connected to altogether End is connected to the 5th NPN type triode Q5 base stage altogether, and the 19th resistance R19 the second end wakes up control module 103 for electric current loop Controlled end, the negative electrode and the 5th NPN type triode Q5 emitter stage of the 6th optocoupler IC6 light emitting diode and the 20th electricity Resistance R20 the second end is connected to ground altogether.
In the power circuit 300 shown in Fig. 1, it includes switch power module 301 and energy supply control module 302, switch The output end of power module 301 is the first output end of power circuit 300, the input connecting valve of energy supply control module 302 The output end of power module 301, the controlled end and output end of energy supply control module 302 are respectively the controlled end of power circuit 300 With the second output end.
For energy supply control module 104, as shown in Fig. 7, Fig. 8 and Fig. 9, it includes：
12nd resistance R12, PNP type triode Qp, the 13rd resistance R13, electrochemical capacitor E1, the 4th NPN type triode Q4, the 14th resistance R14 and the 15th resistance R15；
The common contact of 12nd resistance R12 first end and PNP type triode Qp emitter stage is energy supply control module 104 Input, the output end of PNP type triode Qp current collection extremely energy supply control module 104, the 12nd resistance R12 the second end Connect altogether with the colelctor electrode of the 13rd resistance R13 first end, PNP type triode Qp base stage and the 4th NPN type triode Q4, 13rd resistance R13 the second end connection electrochemical capacitor E1 positive pole, the 14th resistance R14 first end is energy supply control module 104 controlled end, the 14th resistance R14 the second end is connected to the 4th NPN type triode altogether with the 15th resistance R15 first end Q4 base stage, the 15th resistance R15 the second end and the 4th NPN type triode Q4 emitter stage and electrochemical capacitor E1 negative pole It is connected to ground altogether.
In addition, in actual applications, in order to drive the outdoor unit of different voltage requirements to load, in power circuit 300 Voltage transformation module 303 (as shown in Figure 10), the input connection energy supply control module of voltage transformation module 303 can also be included 302 output end, the output end of voltage transformation module 303 is used as the second output end VCC2 of power circuit 300, voltage transformation mould The power supply that block 303 is used to export energy supply control module 302 carries out voltage transformation.
The current ring communication shown in Fig. 7 is described further with power-supplying circuit 100 below in conjunction with operation principle：
In air conditioner complete machine after electricity on outdoor unit, the 4th optocoupler IC4 is by the 6th resistance R6 from switch power module 301 Obtain power supply and turn on, when current loop communication circuit 500 passes through live wire L or zero line N dispatcher's offices internal current communication signal SRXDuring to current ring communication module 101, the first optocoupler IC1 conductings and by indoor electric current communication signal SRXSend to main control The receiving terminal RX of device 200, meanwhile, indoor electric current communication signal SRX3rd light is made by the first optocoupler IC1 light emitting diode Coupling IC3 is turned on, then now power supply energy supply control module 302 can be entered by the 3rd optocoupler IC3 phototriode so that 4th NPN type triode Q4 is turned on, and then is also switched on PNP type triode Qp, then power supply just can pass through PNP type triode Qp is exported with the load supplying to master controller 200 and outdoor unit.Due to indoor electric current communication signal SRXIt is pulse signal, and It is not constant high level, its waveform as shown in Figure 11, works as SRXDuring for high level, the first optocoupler IC1 and the 3rd optocoupler IC3 are Conducting, now the first power supply VCC1 could be by the 3rd optocoupler IC3 into energy supply control module 302, so that the 4th NPN type three Pole pipe Q4 and PNP type triode Qp conductings；Work as SRXDuring for low level, the first optocoupler IC1 and the 3rd optocoupler IC3 are turned off, power supply Power supply can not enter energy supply control module 302 by the 3rd optocoupler IC3, then the 4th NPN type triode Q4 ends, electricity of now powering The resistance R12 of source the 12nd and the 13rd resistance R13 charges to electrochemical capacitor E1, during PNP type triode Qp recharges here Still conducting state is may be at, by the reasonable selection charging interval, charging complete moment and S can be madeRXNext high level Arrive moment realization linking, so that PNP type triode Qp maintains conducting state always, so that energy supply control module 302 It is constantly in constant conduction state.4th optocoupler IC4 conducting causes indoor electric current communication signal SRXThrough the first optocoupler IC1's The phototriode of light emitting diode, the 3rd optocoupler IC3 light emitting diode and the 4th optocoupler IC4 forms loop to be back to Signal wire S.
Indoor electric current communication signal S is normally received in master controller 200RXAfterwards, the wake-up control end P1 of master controller 200 Output control signal controls the second NPN type triode Q2 conductings, then the 4th optocoupler IC4 is now because by the second NPN type triode Q2 Short circuit and turn off, so the 4th optocoupler IC4 phototriode stop output signal to signal flow back module 104, in output State after control signal, master controller 200 can pass through its transmitting terminal TX outputs after prefixed time interval T1 (as shown in figure 11) Outside electric current communication signal STX, outside electric current communication signal STXPass through the second optocoupler IC2 phototriode, the 4th Resistance R4 and the first diode D1 are exported to signal wire S to send to indoor set, so that indoor set and outdoor unit are proceeded by just Normal electric current loop communication.In addition, as shown in figure 11, the room transmitted by master controller 200 that indoor set can be in outdoor unit be received Outer current communication signal STXBe delayed interval of time T2 afterwards, then to outdoor unit dispatcher's office internal current ring communication signal SRX, So that realizing normal electric current loop communication between indoor set and outdoor unit.
During machine carries out normal current ring communication with outdoor unit indoors, the 4th optocoupler IC4 has been switched off, in master control The receiving chamber internal current communication signal S of device 200 processedRXWhen, the transmitting terminal TX of master controller 200 is according to normal electric current loop mailing address Reason rule can export high level so that the second optocoupler IC2 is turned on, now indoor electric current communication signal SRXIn live wire L (or zero lines N), the first optocoupler IC1, the 3rd optocoupler IC3, the second optocoupler IC2, the 4th resistance R4, the first diode D1 and signal wire S are formed Electric current communication loop in be transmitted to maintain normal electric current loop to communicate.If the main control chip 600 in indoor set passes through Above-mentioned electric current communication loop sends off signal to master controller 200, then the meeting of master controller 200 controls negative in outdoor unit immediately Carry (such as compressor, outdoor fan) to be stopped, because indoor set does not retransmit any signal to room after off signal is sent Outer machine, so electric current is not present in electric current communication loop, then the first optocoupler IC1, the 3rd optocoupler IC3 and the second optocoupler IC2 are closed It is disconnected, the second NPN type triode Q2 cut-offs, while power supply can not be exported to energy supply control module by the 3rd optocoupler IC3 104, and then cause the 4th NPN type triode Q4 to end, then PNP type triode Qp also ends therewith, now switch power module 300 the first power supply VCC1 exported are charged by the 12nd resistance R12 and the 13rd resistance R13 to electrochemical capacitor E1, Electrochemical capacitor E1 voltage is constantly raised with the progress of charging process, and then can make PNP type triode Qp base voltage Increase, when PNP type triode Qp base voltage is higher than 0.7V, then PNP type triode Qp ends, so now power supply Second output end VCC2 of circuit 300 does not export power supply, so as to make master control after delay electrochemical capacitor E1 charging interval Device 200 processed and other loads are also powered off therewith, outdoor unit is normally entered holding state and are saved energy consumption, meet low work( Consumption is required.
For the current ring communication shown in Fig. 8 and power-supplying circuit 100, itself and Fig. 7 main distinction are：By Fig. 7 In the 4th optocoupler IC4 replace with the first relay RY1.The difference of operation principle is essentially consisted in from air conditioner complete machine by outdoor unit Upper electricity realizes the course of work between the communication of normal current ring to indoor set and outdoor unit, specific as follows：
In air conditioner complete machine after electricity on outdoor unit, the first relay RY1 normally-closed contact 4 and switch contact 3 are to maintain Connection, so the first optocoupler IC1, the 5th optocoupler IC5 and the first relay RY1 constitute loop, when the electric current in indoor set Ring telecommunication circuit 500 passes through live wire L or zero line N dispatcher's offices internal current communication signal SRXDuring to current ring communication module 101, the One optocoupler IC1 is turned on and is sent indoor electric current communication signal to the receiving terminal RX of master controller 200, meanwhile, indoor electricity Flow communication signal SRXThe 5th optocoupler IC5 is turned on by the first optocoupler IC1 light emitting diode, then now power supply passes through the Five optocoupler IC5 phototriode enters energy supply control module 104 so that the 4th NPN type triode Q4 is turned on, and then makes positive-negative-positive Triode Qp is also switched on, then power supply just can be by PNP type triode Qp outputs with master controller 200 and outdoor unit Other load supplyings.
Indoor electric current communication signal S is normally received in master controller 200RXAfterwards, the wake-up control end P1 of master controller 200 Output control signal control control the 3rd NPN type triode Q3 conducting so that the first relay RY1 normally opened contact 5 with it is quiet Contact 3 is connected, so the first relay RY1 stops outputing signal to signal backflow module 104, is exporting above-mentioned control signal Afterwards, master controller 200 exports outside electric current by its transmitting terminal TX by prefixed time interval T1 (as shown in figure 11) and communicated Signal STX, outside electric current communication signal STXBy the second optocoupler IC2, the 4th resistance R4 and the first diode D1 export to Signal wire S is to send to indoor set, so that indoor set and outdoor unit proceed by normal electric current loop communication.In addition, as schemed Shown in 11, the outside electric current communication signal S transmitted by the master controller 200 that indoor set can be in outdoor unit be receivedTXAfter be delayed Interval of time T2, then to outdoor unit dispatcher's office internal current ring communication signal SRX, so that between indoor set and outdoor unit Realize normal electric current loop communication.
In addition to the above-mentioned course of work, the operation principle and figure of current ring communication and power-supplying circuit 100 shown in Fig. 8 It is identical shown in 7, therefore repeat no more.Waken up for Fig. 7 electric current loop in control module 103 using the 4th optocoupler IC4 progress The mode of control, because after outdoor unit enters holding state, the first power supply VCC1 can pass through resistance (the 6th resistance in Fig. 7 R6) driving optocoupler (the 4th optocoupler IC4 in Fig. 7) is in the conduction state always, so may result in electric current loop and wakes up control mould Block 103 produces certain power consumption, and can increase standby power.And in the current ring communication and power-supplying circuit shown in Fig. 8 In 100, after outdoor unit enters holding state, because the 5th optocoupler IC5 is turned off, and the 3rd NPN type triode Q3 cut-offs can make First relay RY1 normally-closed contact 4 recovers to connect with stationary contact 3, and now the first relay RY1 does not work, so electric current loop The power that wake-up control module 103 is consumed is zero, so as to contribute to the standby power of further reduction air conditioner.
For the current ring communication shown in Fig. 9 and power-supplying circuit 100, itself and Fig. 7 main distinction are：By Fig. 7 In the 3rd optocoupler IC3 replace with the second relay RY2.Because the second relay RY2 is in the first optocoupler IC1 outputs indoor electricity Flow communication signal SRXOr outside electric current communication signal STXWhen can adhesive normally opened contact 4 connected with stationary contact 3, then power supply Just it can be exported by the 17th resistance R17 and the second relay RY2 to energy supply control module 302, so its operation principle and the Three optocoupler IC3 are identical, will not be repeated here.
For the current ring communication and power-supplying circuit shown in Fig. 2, current ring communication module 101, letter included by it Number backflow module 102 and electric current loop wake up control module 103 internal structure as shown in Figure 12, Figure 13 and Figure 14, respectively with figure 7th, it is identical shown in Fig. 8 and Fig. 9, therefore repeat no more.
In the power circuit 300 shown in Fig. 2, it includes switch power module 301 and energy supply control module 302, switch The output end of power module 301 is the first output end of power circuit 300, the input connecting valve of energy supply control module 302 The output end of power module 301, the first controlled end, the second controlled end and the output end of energy supply control module 302 are respectively power supply Emergency flight control end, controlled end and the second output end of circuit 300.
For energy supply control module 104, as shown in Figure 12, Figure 13 and Figure 14, it includes：
12nd resistance R12, PNP type triode Qp, the 13rd resistance R13, electrochemical capacitor E1, the 4th NPN type triode Q4, the 14th resistance R14, the 15th resistance R15 and the second diode D2；
The common contact of 12nd resistance R12 first end and PNP type triode Qp emitter stage is energy supply control module 104 Input, the output end of PNP type triode Qp current collection extremely energy supply control module 104, the 12nd resistance R12 the second end Connect altogether with the colelctor electrode of the 13rd resistance R13 first end, PNP type triode Qp base stage and the 4th NPN type triode Q4, 13rd resistance R13 the second end connection electrochemical capacitor E1 positive pole, the second diode D2 anode and the 14th resistance R14's First end is respectively the first controlled end and the second controlled end of energy supply control module 104, the second diode D2 negative electrode, the 14th Resistance R14 the second end and the 15th resistance R15 first end are connected to the 4th NPN type triode Q4 base stage, the 15th electricity altogether Hinder R15 the second end and the negative pole of the 4th NPN type triode Q4 emitter stage and electrochemical capacitor E1 is connected to ground altogether.
In addition, in actual applications, in order to drive the outdoor unit of different voltage requirements to load, in power circuit 300 Voltage transformation module 303 (as shown in figure 15), the input connection energy supply control module of voltage transformation module 303 can also be included 302 output end, the output end of voltage transformation module 303 is used as the second output end VCC2 of power circuit 300, voltage transformation mould The power supply that block 303 is used to export energy supply control module 302 carries out voltage transformation.
For the current ring communication and power-supplying circuit shown in Figure 12, Figure 13 and Figure 14, it communicates in electric current loop and connected Line is normally in the case of connection, operation principle respectively with the current ring communication shown in Fig. 7, Fig. 8 and Fig. 9 and power-supplying circuit Operation principle is identical, therefore repeats no more.
In addition, during machine carries out electric current loop communication with outdoor unit indoors, if electric current loop communication wire (is believed Number line S, live wire L or zero line N) disconnected because unexpected, master controller 200 can not receive the interior transmitted by indoor set always Side electric current communication signal SRX, so master controller 200 can be constantly in reception state, now electric current loop wakes up control module 103 Be stopped (i.e. the 5th optocoupler IC5 shut-offs in the 3rd optocoupler IC3 shut-offs, Figure 13 in Figure 12, the second relay in Figure 14 RY2 normally-closed contact 5 recovers to connect with stationary contact 3), then the 14th resistance R14 is not received from electric current loop and is waken up control module 103 output power supplies, and when the receiving terminal RX of master controller 200 does not receive indoor electric current communication signal, The wake-up control end P1 of master controller 200 persistently exports high level (i.e. above-mentioned Continuity signal), and the high level passes through the two or two Pole pipe D2 continues to control the 4th NPN type triode Q4 conductings, then PNP type triode Qp also may proceed to conducting, so Switching Power Supply The power supply that module 300 is exported can be exported by PNP type triode Qp and continue as master controller 200 and outdoor unit Load provides power supply；If the time that master controller 200 does not receive indoor electric current communication signal reaches preset time period (such as 3 minutes), then master controller 200 can control the load in outdoor unit to be stopped, and wake up the low electricity of control end P1 outputs by it Flat (i.e. above-mentioned shutdown signal) controls the 4th NPN type triode Q4 cut-offs by the second diode D2, then PNP type triode Qp Also enter cut-off state during charging complete within the electrochemical capacitor E1 short time, so as to stop exporting power supply, master controller 200 And the load of outdoor unit also normal power down therewith, this makes it possible to ensure to be supported on electric current loop communication accidental interruption in outdoor unit Shi Shixian normal switching-offs, it is to avoid load is damaged because of improper closing, has been reached safety shutdown and has been reduced the purpose of energy consumption.
For the current ring communication and power-supplying circuit shown in Fig. 3, current ring communication module 101, letter included by it Number backflow module 102 and electric current loop wake up control module 103 internal structure as shown in Figure 16, Figure 17 and Figure 18, respectively with figure 7th, it is identical shown in Fig. 8 and Fig. 9, therefore repeat no more.
In the power circuit 300 shown in Fig. 3, it includes switch power module 301 and energy supply control module 302, switch The output end of power module 301 is the first output end of power circuit 300, the input connecting valve of energy supply control module 302 The output end of power module 301, the first controlled end, the second controlled end and the output end of energy supply control module 302 are respectively power supply Emergency flight control end, controlled end and the second output end of circuit 300.Wherein, the internal structure of energy supply control module 302 such as Figure 16, It is identical with shown in Figure 12, Figure 13 and Figure 14 respectively shown in Figure 17 and Figure 18, therefore repeat no more.
In addition, in actual applications, in order to drive the outdoor unit of different voltage requirements to load, in power circuit 300 Voltage transformation module 303 (as shown in figure 19), the input connection energy supply control module of voltage transformation module 303 can also be included 302 output end, the output end of voltage transformation module 303 is used as the second output end VCC2 of power circuit 300, voltage transformation mould The power supply that block 303 is used to export energy supply control module 302 carries out voltage transformation.
For the current ring communication and power-supplying circuit shown in Figure 16, Figure 17 and Figure 18, it communicates in electric current loop and connected Line is normally in the case of connection, operation principle respectively with the current ring communication shown in Fig. 7, Fig. 8 and Fig. 9 and power-supplying circuit Operation principle is identical, therefore repeats no more.
In addition, during machine carries out electric current loop communication with outdoor unit indoors, if electric current loop communication wire (is believed Number line S, live wire L or zero line N) disconnected because unexpected, master controller 200 can not receive the interior transmitted by indoor set always Side electric current communication signal SRX, so master controller 200 can be constantly in reception state, now electric current loop wakes up control module 103 Be stopped (i.e. the 5th optocoupler IC5 shut-offs in the 3rd optocoupler IC3 shut-offs, Figure 17 in Figure 16, the second relay in Figure 18 RY2 normally-closed contact 5 recovers to connect with stationary contact 3), then the 14th resistance R14 is not received from electric current loop and is waken up control module 103 output power supplies, and when the receiving terminal RX of master controller 200 does not receive indoor electric current communication signal, The power control terminal P2 of master controller 200 persistently exports high level (i.e. above-mentioned Continuity signal), and the high level passes through the two or two Pole pipe D2 continues to control the 4th NPN type triode Q4 conductings, then PNP type triode Qp also may proceed to conducting, so Switching Power Supply The power supply that module 300 is exported can be exported by PNP type triode Qp and continue as master controller 200 and outdoor unit Load provides power supply；If the time that master controller 200 does not receive indoor electric current communication signal reaches preset time period (such as 3 minutes), then master controller 200 can control the load in outdoor unit to be stopped, and export low electricity by its power control terminal P2 Flat (i.e. above-mentioned shutdown signal) controls the 4th NPN type triode Q4 cut-offs by the second diode D2, then PNP type triode Qp Also enter cut-off state during charging complete within the electrochemical capacitor E1 short time, so as to stop exporting power supply, master controller 200 And the load of outdoor unit also normal power down therewith, this makes it possible to ensure to be supported on electric current loop communication accidental interruption in outdoor unit Shi Shixian normal switching-offs, it is to avoid load is damaged because of improper closing, has been reached safety shutdown and has been reduced the purpose of energy consumption.
Based on above-mentioned current ring communication and application advantage of the power-supplying circuit 100 in air conditioner, the present embodiment is also There is provided a kind of air conditioner, it includes in indoor set and outdoor unit, and outdoor unit there is above-mentioned current ring communication to be controlled with power supply Circuit 100 processed.
In addition, when carrying out electric current loop communication in order to machine indoors and outdoor unit stabling current ring communication loop direct current Voltage, to ensure also to include electric current loop Voltage stabilizing module 700 in communication quality, air conditioner, it may be disposed at indoor set or outdoor unit In.The embodiment of the present invention is illustrated exemplified by being disposed in the outdoor in machine, such as Figure 20 (corresponding diagram 1), Figure 21 (corresponding diagram 2) and figure Shown in 22 (corresponding diagrams 3), the first input end of electric current loop Voltage stabilizing module 700 and the second input connect live wire L and zero line respectively N, or as shown in Figure 23 (corresponding diagram 1), Figure 24 (corresponding diagram 2) and Figure 25 (corresponding diagram 3), the of electric current loop Voltage stabilizing module 700 One input and the second input connect zero line N and live wire L respectively, and its output end connects the external of current ring communication module 101 Receiving terminal.
Specifically, as Figure 26 (corresponding diagram 20), Figure 27 (corresponding diagram 21), Figure 28 (corresponding diagram 22), Figure 29 (corresponding diagram 23), Shown in Figure 30 (corresponding diagram 24) and Figure 31 (corresponding diagram 25), electric current loop Voltage stabilizing module 700 includes：
16th resistance R16, the 3rd diode D3, voltage-regulator diode ZD1 and electric capacity C1；
16th resistance R16 first end is the first input end of electric current loop Voltage stabilizing module 700, the 16th resistance R16's The common contact of the 3rd diode D3 of second end connection anode, voltage-regulator diode ZD1 anode and electric capacity C1 first end is electricity Flow the second input of ring Voltage stabilizing module 700, the 3rd diode D3 negative electrode and voltage-regulator diode ZD1 negative electrode and electric capacity C1 The second end common contact be electric current loop Voltage stabilizing module 700 output end.
The embodiment of the present invention includes current ring communication module 101, signal backflow mould by being used in air-conditioner outdoor unit Block 102 and electric current loop wake up the current ring communication and power-supplying circuit 100 of control module 103, on outdoor unit after electricity, by electricity The second output end VCC2 output power supplies that ring wakes up the controlling power circuit 300 of control module 103 are flowed, so that in outdoor unit Master controller 200 and other loads can be worked on power, and machine is sent after off signal or electric current loop to outdoor unit indoors When communication wire disconnects, the load in the control outdoor unit of master controller 200 is stopped, and electric current loop wakes up control module 103 it is stopped (i.e. indoor set is sent after off signal to outdoor unit) or master controller 200 exports shutdown signal (i.e. electric current When ring communication wire disconnects) so that the second output end VCC2 of power circuit 300 stops output power supply, so as to cut off pair Master controller 200 in outdoor unit and power supplies of other loads, so that outdoor unit is standby or surprisingly disconnect with indoor set logical The lower power consumption consumed during simultaneously safety shutdown is interrogated, and then the standby power of air conditioner can be reduced to meet low energy consumption requirement.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.

Claims (16)

1. the current ring communication and power-supplying circuit of a kind of air-conditioner outdoor unit, it includes current ring communication module and signal is returned Master controller in flow module, the outdoor unit by the current ring communication module, the signal flow back module, signal wire, The main control chip of current loop communication circuit and the indoor set in live wire or zero line, air conditioner room unit carries out electric current loop and led to News；The first output end and the second output end of power circuit in the outdoor unit export power supply, the master controller The power supply exported with the load in the outdoor unit according to the second output end of the power circuit is worked on power； Characterized in that, the current ring communication, which also includes electric current loop with power-supplying circuit, wakes up control module；
The electric current loop wakes up the signal output part of the signal input part connection current ring communication module of control module, described Electric current loop wakes up the signal input part of the first signal output part connection current ring communication module of control module, the electric current Ring wakes up the input of the secondary signal output end connection signal backflow module of control module, and the electric current loop wakes up control The power end of module connects the first output end of the power circuit, and the power control terminal that the electric current loop wakes up control module connects The controlled end of the power circuit is connect, the electric current loop wakes up the wake-up control of the controlled end connection master controller of control module End processed；Signal wire and live wire or signal wire and zero line are used as electric current loop communication wire；
On the outdoor unit after electricity, when the current loop communication circuit is to the current ring communication module dispatcher's office internal current During communication signal, the electric current loop wakes up the indoor electric current communication that control module is received according to the current ring communication module Signal controls the second output end of the power circuit to export the power supply, and the indoor electric current communication signal is led to The signal backflow module is crossed to be back to signal wire and send to indoor set, the wake-up control end output control of the master controller Signal makes the electric current loop wake-up control module stop outputing signal to the signal backflow module, is exporting the control signal Afterwards, the transmitting terminal of the master controller passes through the current ring communication module and signal backflow module dispatcher's office outer current Communication signal is to signal wire, and the electric current loop wakes up control module according to the room sent by the current ring communication module Outer current communication signal continues to control the second output end of the power circuit to export the power supply；
During the electric current loop is communicated, if the main control chip sends off signal, institute to the master controller The load stated in outdoor unit described in main controller controls is stopped, and the current ring communication module is exporting the off signal No signal is exported to the electric current loop and wakes up control module after to the master controller, and the electric current loop, which wakes up control module, to be stopped Work so that the second output end of the power circuit stops the output power supply.
2. current ring communication as claimed in claim 1 and power-supplying circuit, it is characterised in that the wake-up of the master controller Control end is also connected with the emergency flight control end of the power circuit；
During the electric current loop is communicated, when the electric current loop communication wire disconnects, the current ring communication module No signal exports to the electric current loop and wakes up control module, and the electric current loop wakes up control module and is stopped, from the master control When the receiving terminal of device processed does not receive indoor electric current communication signal, the wake-up control end of the master controller is persistently exported Continuity signal is to control the second output end of the power circuit to continue to output the power supply；
If the time that the master controller does not receive indoor electric current communication signal reaches preset time period, the master control Load in device control outdoor unit processed is stopped, and the wake-up control end output shutdown signal control of the master controller is described Second output end of power circuit stops the output power supply.
3. current ring communication as claimed in claim 1 and power-supplying circuit, it is characterised in that the power supply of the master controller Control end is connected with the emergency flight control end of the power circuit；
During the electric current loop is communicated, when the electric current loop communication wire disconnects, the current ring communication module No signal exports to the electric current loop and wakes up control module, and the electric current loop wakes up control module and is stopped, from the master control When the receiving terminal of device processed does not receive indoor electric current communication signal, the power control terminal of the master controller is persistently exported Continuity signal is to control the second output end of the power circuit to continue to output the power supply；
If the time that the master controller does not receive indoor electric current communication signal reaches preset time period, the master control Load in device control outdoor unit processed is stopped, and the power control terminal output shutdown signal control of the master controller is described Second output end of power circuit stops the output power supply.
4. current ring communication as claimed in claim 1 and power-supplying circuit, it is characterised in that the current ring communication module Including：
First optocoupler, the second optocoupler, first resistor, the first NPN type triode, second resistance and 3rd resistor；
The anode and negative electrode of the light emitting diode of first optocoupler are respectively the external receiving terminal of the current ring communication module And signal output part, the colelctor electrode of the phototriode of first optocoupler is with the common contact of the first end of the first resistor The power end of the current ring communication module, the extremely described current ring communication mould of transmitting of the phototriode of first optocoupler The internal transmitting terminal of block, the second end of the first resistor connects the anode of the light emitting diode of second optocoupler, and described the The negative electrode of two optocouplers connects the colelctor electrode of first NPN type triode, the first end of the second resistance and the described 3rd electricity The first end of resistance is connected to the base stage of first NPN type triode, the second end of the second resistance and first NPN type altogether The emitter stage of triode is connected to ground altogether, and the second end of the 3rd resistor is the internal receiving terminal of the current ring communication module, The signal input part of the extremely described current ring communication module of the current collection of the phototriode of second optocoupler, second optocoupler Phototriode the extremely described current ring communication module of transmitting external transmitting terminal.
5. current ring communication as claimed in claim 1 and power-supplying circuit, it is characterised in that the signal backflow module bag Include the 4th resistance and the first diode, the first end of the 4th resistance flows back the input of module for the signal, described the Second end of four resistance connects the anode of first diode, and the negative electrode of first diode is signal backflow module Output end.
6. current ring communication as claimed in claim 1 and power-supplying circuit, it is characterised in that the electric current loop wakes up control Module includes：
3rd optocoupler, the 4th optocoupler, the 5th resistance, the 6th resistance, the second NPN type triode, the 7th resistance and the 8th resistance；
The anode of the light emitting diode of 3rd optocoupler is the signal input part that the electric current loop wakes up control module, described the The colelctor electrode of the negative electrode of the light emitting diode of three optocouplers and the phototriode of the 4th optocoupler connects the common contact to be formed altogether The first signal output part of control module, the transmitting extremely institute of the phototriode of the 3rd optocoupler are waken up for the electric current loop State the power control terminal that electric current loop wakes up control module, the extremely described electric current loop of transmitting of the phototriode of the 4th optocoupler The secondary signal output end of control module is waken up, the first end of the 5th resistance connects the phototriode of the 3rd optocoupler Colelctor electrode, the common contact of the second end of the 5th resistance and the first end of the 6th resistance wakes up for the electric current loop to be controlled The anode of the power end of molding block, the second end of the 6th resistance and the light emitting diode of the 4th optocoupler is connected to described altogether The colelctor electrode of second NPN type triode, the first end of the 7th resistance is connected to described altogether with the first end of the 8th resistance The base stage of second NPN type triode, the first end of the 7th resistance wakes up the controlled end of control module, institute for the electric current loop State the second end of the 8th resistance and the light emitting diode of the emitter stage of second NPN type triode and the 4th optocoupler Negative electrode is connected to ground altogether.
7. current ring communication as claimed in claim 1 and power-supplying circuit, it is characterised in that the electric current loop wakes up control Module includes：
5th optocoupler, the 9th resistance, the first relay, the 3rd NPN type triode, the tenth resistance and the 11st resistance；
The anode of the light emitting diode of 5th optocoupler is the signal input part that the electric current loop wakes up control module, described the The normally-closed contact of the negative electrode of the light emitting diode of five optocouplers and first relay connects the common contact to be formed for the electricity altogether The first signal output part that ring wakes up control module is flowed, the stationary contact of first relay wakes up control mould for the electric current loop The secondary signal output end of block, the first control contact of first relay and the common contact of the first end of the 9th resistance The power end of control module is waken up for the electric current loop, the second end of the 9th resistance connects photosensitive the three of the 5th optocoupler The colelctor electrode of pole pipe, the extremely described electric current loop of transmitting of the phototriode of the 5th optocoupler wakes up the power supply control of control module End processed, the normally opened contact sky of first relay connects, and the colelctor electrode of the 3rd NPN type triode connects first relay Second control contact of device, the first end of the tenth resistance wakes up the controlled end of control module for the electric current loop, and described the The first end of second end of ten resistance and the 11st resistance is connected to the base stage of the 3rd NPN type triode altogether, and described the Second end of 11 resistance and the emitter stage of the 3rd NPN type triode are connected to ground altogether.
8. current ring communication as claimed in claim 1 and power-supplying circuit, it is characterised in that the electric current loop wakes up control Module includes：
Second relay, the 6th optocoupler, the 17th resistance, the 18th resistance, the 5th NPN type triode, the 19th resistance and 20th resistance；
The first of second relay controls contact to be the signal input part of electric current loop wake-up control module, described second It is institute that the second of relay, which controls the colelctor electrode of contact and the phototriode of the 6th optocoupler to connect the common contact to be formed altogether, The first signal output part that electric current loop wakes up control module is stated, the stationary contact of second relay wakes up control for the electric current loop The power control terminal of molding block, the extremely described electric current loop of transmitting of the phototriode of the 6th optocoupler wakes up control module Secondary signal output end, the first end of the 17th resistance connects the normally opened contact of second relay, described second after The normally opened contact sky of electrical equipment connects, and the second end of the 17th resistance and the common contact of the first end of the 18th resistance are institute State the power end that electric current loop wakes up control module, the second end of the 18th resistance and the light emitting diode of the 6th optocoupler Anode be connected to the colelctor electrode of the 5th NPN type triode, the first end of the 19th resistance and the described 20th electricity altogether The first end of resistance is connected to the base stage of the 5th NPN type triode altogether, and the second end of the 19th resistance is the electric current loop Wake up the controlled end of control module, the negative electrode of the light emitting diode of the 6th optocoupler and the hair of the 5th NPN type triode Second end of emitter-base bandgap grading and the 20th resistance is connected to ground altogether.
9. current ring communication as claimed in claim 1 and power-supplying circuit, it is characterised in that the energy supply control module bag Include：
12nd resistance, PNP type triode, the 13rd resistance, electrochemical capacitor, the 4th NPN type triode, the 14th resistance and 15th resistance；
The common contact of the first end of 12nd resistance and the emitter stage of the PNP type triode is the energy supply control module Input, the output end of the extremely described energy supply control module of current collection of the PNP type triode, the of the 12nd resistance Two ends and the collection of the first end, the base stage of the PNP type triode and the 4th NPN type triode of the 13rd resistance Electrode connects altogether, and the second end of the 13rd resistance connects the positive pole of the electrochemical capacitor, the first end of the 14th resistance For the controlled end of the energy supply control module, the second end of the 14th resistance and the first end of the 15th resistance connect altogether In the base stage of the 4th NPN type triode, the second end of the 15th resistance and the transmitting of the 4th NPN type triode The negative pole of pole and the electrochemical capacitor is connected to ground altogether.
10. current ring communication as claimed in claim 2 or claim 3 and power-supplying circuit, it is characterised in that the power supply mould Block includes：
12nd resistance, PNP type triode, the 13rd resistance, electrochemical capacitor, the 4th NPN type triode, the 14th resistance, 15 resistance and the second diode；
The common contact of the first end of 12nd resistance and the emitter stage of the PNP type triode is the energy supply control module Input, the output end of the extremely described energy supply control module of current collection of the PNP type triode, the of the 12nd resistance Two ends and the collection of the first end, the base stage of the PNP type triode and the 4th NPN type triode of the 13rd resistance Electrode connects altogether, and the second end of the 13rd resistance connects the positive pole of the electrochemical capacitor, the anode of second diode and The first end of 14th resistance is respectively emergency flight control end and the controlled end of the energy supply control module, the two or two pole The first end of the negative electrode of pipe, the second end of the 14th resistance and the 15th resistance is connected to the 4th NPN type three altogether The base stage of pole pipe, the second end of the 15th resistance and the emitter stage of the 4th NPN type triode and electrolysis electricity The negative pole of appearance is connected to ground altogether.
11. a kind of air conditioner, including indoor set and outdoor unit, it is characterised in that have in the outdoor unit as claim 1 to Current ring communication and power-supplying circuit described in 9 any one.
12. air conditioner as claimed in claim 11, it is characterised in that the air conditioner also includes electric current loop Voltage stabilizing module, institute State first input end connection live wire and the second input connection zero of the electric current loop Voltage stabilizing module of electric current loop Voltage stabilizing module Line, or the first input end of the electric current loop Voltage stabilizing module connect zero line, the second input of the electric current loop Voltage stabilizing module Live wire is connected, the output end of the electric current loop Voltage stabilizing module connects the external receiving terminal of the current ring communication module.
13. air conditioner as claimed in claim 12, it is characterised in that the electric current loop Voltage stabilizing module includes：
16th resistance, the 3rd diode, voltage-regulator diode and electric capacity；
The first end of 16th resistance is the first input end of the electric current loop Voltage stabilizing module, the of the 16th resistance Two ends connect the anode of the 3rd diode, and the anode of the voltage-regulator diode and the common contact of the first end of the electric capacity are Second input of the electric current loop Voltage stabilizing module, the negative electrode of the 3rd diode and the negative electrode of the voltage-regulator diode and The common contact at the second end of the electric capacity is the output end of the electric current loop Voltage stabilizing module.
14. a kind of current ring communication and power supply control of current ring communication and power-supplying circuit based on described in claim 1 Method, it is characterised in that the current ring communication comprises the following steps with method for controlling power supply：
It is electric on outdoor unit, and when outdoor unit and indoor set progress electric current loop communication, the master controller in the outdoor unit passes through Control module and the room are waken up by current ring communication module, signal backflow module, signal wire, live wire or zero line, electric current loop The electric current communication loop that current loop communication circuit in interior machine is constituted carries out electric current loop with the main control chip in the indoor set and led to News；
During the electric current loop is communicated, if the main control chip sends off signal by the electric current communication loop To the master controller, then the load in outdoor unit described in the main controller controls is stopped；
The current ring communication module is exported to the electric current in the output off signal to no signal after the master controller Ring wakes up control module, and the electric current loop wakes up control module and is stopped so that the second output end of the power circuit stops Export the power supply.
15. current ring communication as claimed in claim 14 and method for controlling power supply, it is characterised in that the current ring communication with Method for controlling power supply is further comprising the steps of：
During the electric current loop is communicated, when electric current loop communication wire disconnects, the current ring communication module is without letter Number output to the electric current loop wakes up control module, and the electric current loop wakes up control module and is stopped；
When the receiving terminal of the master controller does not receive indoor electric current communication signal, the wake-up of the master controller Control end persistently exports Continuity signal so that the second output end of the power circuit continues to output the power supply；
If the time that the master controller does not receive indoor electric current communication signal reaches preset time period, the master control Load in device control outdoor unit processed is stopped, and the wake-up control end output shutdown signal control of the master controller is described Second output end of power circuit stops the output power supply.
16. current ring communication as claimed in claim 14 and method for controlling power supply, it is characterised in that the current ring communication with Method for controlling power supply is further comprising the steps of：
During the electric current loop is communicated, when electric current loop communication wire disconnects, the current ring communication module is without letter Number output to the electric current loop wakes up control module, and the electric current loop wakes up control module and is stopped；
When the receiving terminal of the master controller does not receive indoor electric current communication signal, the power supply of the master controller Control end persistently exports Continuity signal so that the second output end of the power circuit continues to output the power supply；
If the time that the master controller does not receive indoor electric current communication signal reaches preset time period, the master control Load in device control outdoor unit processed is stopped, and the power control terminal output shutdown signal control of the master controller is described Second output end of power circuit stops the output power supply.
CN201510239504.3A 2015-05-12 2015-05-12 The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method Active CN104850024B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510239504.3A CN104850024B (en) 2015-05-12 2015-05-12 The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510239504.3A CN104850024B (en) 2015-05-12 2015-05-12 The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method

Publications (2)

Publication Number Publication Date
CN104850024A CN104850024A (en) 2015-08-19
CN104850024B true CN104850024B (en) 2017-10-31

Family

ID=53849741

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510239504.3A Active CN104850024B (en) 2015-05-12 2015-05-12 The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method

Country Status (1)

Country Link
CN (1) CN104850024B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3944484A1 (en) * 2020-07-24 2022-01-26 Guangdong Giwee Technology Co., Ltd. Communication circuit for indoor and outdoor units of air conditioner and air conditioner

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106225105B (en) * 2016-09-20 2022-03-01 广东美的制冷设备有限公司 Current loop communication device and air conditioner
CN114285439B (en) * 2021-12-22 2023-02-03 珠海格力电器股份有限公司 Current loop communication circuit and air conditioner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101509694A (en) * 2009-03-16 2009-08-19 宁波德斯科电子科技有限公司 DC frequency converting air-conditioner compressor intelligent controller and control method thereof
CN102400899A (en) * 2010-09-13 2012-04-04 海尔集团公司 Control device and control method of air conditioner compressor and variable frequency air conditioner
JP5310046B2 (en) * 2009-02-05 2013-10-09 ダイキン工業株式会社 Communication module standby method and communication system abnormality determination method
CN103425056A (en) * 2012-05-15 2013-12-04 珠海格力电器股份有限公司 Quasi-zero power consumption standby control circuit device and control method
CN203443031U (en) * 2013-08-13 2014-02-19 Tcl空调器(中山)有限公司 Low standby power consumption control circuit and air conditioner
CN204595494U (en) * 2015-05-12 2015-08-26 广东美的制冷设备有限公司 The current ring communication of air conditioner and off-premises station thereof and power-supplying circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5310046B2 (en) * 2009-02-05 2013-10-09 ダイキン工業株式会社 Communication module standby method and communication system abnormality determination method
CN101509694A (en) * 2009-03-16 2009-08-19 宁波德斯科电子科技有限公司 DC frequency converting air-conditioner compressor intelligent controller and control method thereof
CN102400899A (en) * 2010-09-13 2012-04-04 海尔集团公司 Control device and control method of air conditioner compressor and variable frequency air conditioner
CN103425056A (en) * 2012-05-15 2013-12-04 珠海格力电器股份有限公司 Quasi-zero power consumption standby control circuit device and control method
CN203443031U (en) * 2013-08-13 2014-02-19 Tcl空调器(中山)有限公司 Low standby power consumption control circuit and air conditioner
CN204595494U (en) * 2015-05-12 2015-08-26 广东美的制冷设备有限公司 The current ring communication of air conditioner and off-premises station thereof and power-supplying circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3944484A1 (en) * 2020-07-24 2022-01-26 Guangdong Giwee Technology Co., Ltd. Communication circuit for indoor and outdoor units of air conditioner and air conditioner

Also Published As

Publication number Publication date
CN104850024A (en) 2015-08-19

Similar Documents

Publication Publication Date Title
CN104834239B (en) The current ring communication and power-supplying circuit of air-conditioner and its outdoor unit
CN109764503B (en) Outdoor power supply control circuit of air conditioner and air conditioner
CN105066385B (en) A kind of control system for standby power consumption of air-conditioner outdoor unit and outdoor unit
CN104132420B (en) Low-power-consumption standby circuit device, air conditioner and control method of air conditioner
CN202109612U (en) Standby power consumption control system of outdoor unit of air conditioner
CN207543063U (en) Multicompartment grade Quick shut-off device and photovoltaic system
CN111365826A (en) Power supply system and air conditioner
CN104850024B (en) The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method
CN105071469B (en) A kind of solar charging circuit
CN104850023B (en) The current ring communication of air conditioner and its outdoor unit and power-supplying circuit and method
CN110119118A (en) Low-cost energy-saving type wireless remote auto powering on/off apparatus and method applied to AGV
CN203930389U (en) The circuit of a kind of air conditioner and low standby power loss thereof
CN212204951U (en) Power supply system and air conditioner
CN203258794U (en) Low-standby-power-consumption air conditioner intelligent control system
CN109323374B (en) Air conditioner controller and control method
CN204595495U (en) The current ring communication of air conditioner and off-premises station thereof and power-supplying circuit
CN204497835U (en) A kind of PoE switch of uninterrupted power supply
CN104345729A (en) Current-loop communication loop-based power supply control circuit
CN204719447U (en) The current ring communication of air conditioner and off-premises station thereof and power-supplying circuit
CN203215919U (en) Low-power consumption standby circuit device and air conditioner
CN204595494U (en) The current ring communication of air conditioner and off-premises station thereof and power-supplying circuit
CN206790207U (en) A kind of three power supply redundancys are mutually for D.C. regulated power supply system
CN108488948A (en) Air conditioner, air conditioner control system and outdoor unit switch circuit
CN104635546A (en) Non-leakage type single firing wire switching system and working method thereof
CN106247537B (en) Air-conditioner outdoor unit and one drag more air-conditionings

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant