CN103075782B - Non-polar power supplying communication system of multi-connection type air conditioner - Google Patents
Non-polar power supplying communication system of multi-connection type air conditioner Download PDFInfo
- Publication number
- CN103075782B CN103075782B CN201210558641.XA CN201210558641A CN103075782B CN 103075782 B CN103075782 B CN 103075782B CN 201210558641 A CN201210558641 A CN 201210558641A CN 103075782 B CN103075782 B CN 103075782B
- Authority
- CN
- China
- Prior art keywords
- module
- resistance
- indoor set
- power supply
- electric capacity
- 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
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an air-conditioner technology, solves the problems of complex wiring and easiness in making error when the existing multi-connection type air conditioner is mounted and provides a non-polar power supplying communication system of a multi-connection type air conditioner. The non-polar power supplying communication system adopts the summarized technical scheme that the non-polar power supplying communication system comprises a line controller and at least one indoor machine, wherein the line controller comprises a line controller processor; and the indoor machine comprises an indoor machine processor. The non-polar power supplying communication system is characterized in that the line controller also comprises a line controller communication circuit; the indoor machine also comprises an indoor machine communication circuit; the line controller communication circuit is connected with the indoor machine communication circuit by a bus; the line controller communication circuit is internally provided with a power-supply polarity conversion filtering module; and the power supply outputted by the power-supply polarity conversion filtering module supplies working power to the line controller. The non-polar power supplying communication system provided by the invention has the beneficial effects of simple wiring and applicability to the air-conditioning system.
Description
Technical field
The present invention relates to air-conditioning technical, particularly the technology of multi-connected air conditioner.
Background technology
Current air-condition line-controller mainly adopts five-wire system power supply communication circuit, and namely wherein two lines are used for providing power supply for line control machine, and its excess-three root line is used for the communication of indoor set and line control machine by RS485 communication chip.Because which connecting line is too many, and this circuit adopts RS485 communication, communication exist polarity point, the therefore complicated and easy wrong line of wiring when air-conditioner set (particularly multi-connected air conditioner) is installed, and cause circuit cisco unity malfunction, even damage circuit.Coupling inductance generally comprises four ports, be divided into both sides, Zhi Liangge connectivity port, every side is connected by an inductance, be generally a pin and No. four pins are side, No. two pins and No. three pins are side, a pin is corresponding with the position of No. two pins, and No. four pins are corresponding with the position of No. three pins.
Summary of the invention
The object of the invention is to overcome wiring when current multi-connected air conditioner is installed complicated, the shortcoming of easily makeing mistakes, provides a kind of multi-connected air conditioner nonpolarity power supply communication system.
The present invention solves its technical problem, the technical scheme adopted is, power supply communication system that multi-connected air conditioner is nonpolarity, comprise line control machine and at least one indoor set, described line control machine comprises line control machine processor, indoor set comprises indoor set processor, it is characterized in that, described line control machine also comprises line control machine communicating circuit, described indoor set also comprises indoor set communicating circuit, described line control machine communicating circuit is connected by bus with indoor set communicating circuit, there is in described line control machine communicating circuit electric power polarity translation filtering module, the power supply that electric power polarity translation filtering module exports provides working power for line control machine.
Concrete, described indoor set communicating circuit comprises DC supply input, communication module, supply module, power supply detection module, connection detection module and conducting control module, described DC supply input is connected with supply module, indoor set processor is connected with indoor set communication module, indoor set communication module is connected with supply module, power supply detection module is connected with supply module, and be connected with indoor set processor, connection detection module is connected with supply module, and be connected with indoor set processor, conducting control module is connected with supply module, and be connected with indoor set processor, supply module is connected with bus.
Further, described supply module comprises coupling inductance one, coupling inductance two, electric capacity one, commutation diode five, switch, resistance one, resistance two and resistance three, bus has two transmit pories, a transmit port of bus is connected by a pin of coupling inductance one, another transmit port is connected with No. two pins of coupling inductance one, No. four pins of coupling inductance one are connected with No. two pins of coupling inductance two, and be connected with a port of communication module, No. three pins of coupling inductance one are connected with No. four pins of coupling inductance two, and be connected with another port of communication module, a pin of coupling inductance two is connected with a port of connection detection module, No. three pins of coupling inductance two are connected with the negative pole of commutation diode five, and be connected with one end of resistance two, the other end of resistance two is connected with another port of connection detection module, resistance three is in parallel with electric capacity one, one end is connected with one end of resistance two, the other end is connected with conducting control module, the positive pole of commutation diode five is connected with one end of resistance one, and be connected with one end of switch, the other end of switch is connected with DC supply input, the other end of resistance one is connected with power supply detection module.
Concrete, described power supply detection module comprises photoelectrical coupler one, ground wire, electric capacity two, resistance four and 5V DC voltage input end, the diode of described photoelectrical coupler one is rectified pole and is connected with supply module, negative pole is connected with ground wire, the triode end of photoelectrical coupler one, emitter stage is connected with ground wire, and be connected with one end of electric capacity two, colelctor electrode is connected with the other end of electric capacity two, and be connected with 5V DC voltage input end by resistance four, and be connected with the first level signal input of indoor set processor.
Further, described connection detection module comprises 5V DC voltage input end, photoelectrical coupler two, photoelectrical coupler three, electric capacity three, electric capacity four, resistance five, resistance six and ground wire, the diode of described photoelectrical coupler two is rectified pole and is connected with the diode end negative pole of photoelectrical coupler three, and be connected with a port of supply module, the diode end negative pole of photoelectrical coupler two is rectified pole with the diode of photoelectrical coupler three and is connected, and be connected with another port of supply module, the triode end of photoelectrical coupler two, emitter stage is connected with ground wire, and be connected with one end of electric capacity three, colelctor electrode is connected with the other end of electric capacity three, and be connected with 5V DC voltage input end by resistance five, and be connected with the second electrical level signal input part of indoor set processor, the triode end of photoelectrical coupler three, emitter stage is connected with ground wire, and be connected with one end of electric capacity four, colelctor electrode is connected with the other end of electric capacity four, and be connected with 5V DC voltage input end by resistance six, and be connected with the three level signal input of indoor set processor.
Concrete, described conducting control module comprises triode one, triode two, electric capacity five, electric capacity six, resistance seven, resistance eight, resistance nine, ground wire and 5V DC voltage input end, the colelctor electrode of described triode one is connected with supply module, emitter stage is connected with one end of resistance seven, and be connected with one end of electric capacity five, and be connected with the 4th level signal input of indoor set processor, the other end of resistance seven is connected with ground wire, the other end of electric capacity five is connected with ground wire, the base stage of triode one is connected with one end of resistance eight, the other end of resistance eight is connected with the colelctor electrode of triode two, the emitter stage of triode two is connected with 5V DC voltage input end, and be connected with ground wire by electric capacity six, the base stage of triode two is connected with the 4th level signal input of indoor set processor by resistance nine.
Further, described line control machine communicating circuit comprises communication module, electric power polarity translation filtering module and DC power supply end, DC power supply end and electric power polarity translation filtering model calling, electric power polarity translation filtering module is connected with line control machine communication module, and be connected with bus, line control machine communication module is connected with line control machine processor, and is connected with bus.
Concrete, described electric power polarity translation filtering module comprises coupling inductance three, commutation diode one, rectification diode, commutation diode three, commutation diode four, polar capacitor and ground wire, described polar capacitor negative pole is connected with ground wire, positive pole is connected with DC power supply end, bus has two transmit pories, a transmit port is connected with a port of communication module, and be connected with No. three pins of coupling inductance three, No. two pins of described coupling inductance three are connected with the negative pole of Zener diode four, another transmit port of bus is connected with another port of communication module, and be connected with a pin of coupling inductance three, No. four pins of coupling inductance three are connected with the negative pole of Zener diode three, the negative pole of Zener diode one is connected with DC power supply end, and be connected with the negative pole of Zener diode two, the positive pole of Zener diode one is connected with the negative pole of Zener diode three, the positive pole of Zener diode two is connected with the negative pole of Zener diode four, the positive pole of Zener diode three is connected with the positive pole of Zener diode four, and be connected with ground wire.
Further, described communication module adopts MM1192 communication chip and peripheral communicating circuit thereof.
The invention has the beneficial effects as follows, by the nonpolarity power supply communication network of above-mentioned multi-connected air conditioner, can make multi-connected air conditioner in installation process; the polarity of bus of forgetting it when line control machine connects, ensures that circuit normally works, and protects circuit; facilitate installation personnel, and save installation wire rod.
Accompanying drawing explanation
Fig. 1 is the system block diagram of indoor set communicating circuit in the present embodiment.
Fig. 2 is the supply module circuit theory diagrams of indoor set communicating circuit in the present embodiment.
Fig. 3 is the power supply detection module circuit theory diagrams of indoor set communicating circuit in the present embodiment.
Fig. 4 is the connection detection module circuit theory diagrams of indoor set communicating circuit in the present embodiment.
Fig. 5 is the conducting control module circuit theory diagrams of indoor set communicating circuit in the present embodiment.
Fig. 6 is the system block diagram of line control machine communicating circuit in the present embodiment.
Fig. 7 is the electric power polarity translation filtering modular circuit schematic diagram of line control machine communicating circuit in the present embodiment.
Fig. 8 is the circuit theory diagrams of communication module in the present embodiment.
Fig. 9 is the power supply communication network diagram that the present embodiment line control machine controls multiple stage indoor set.
Wherein, FL1 is coupling inductance one, FL2 is coupling inductance two, FL3 is coupling inductance three, D1 is commutation diode one, D2 is commutation diode two, D3 is commutation diode three, D4 is commutation diode four, D5 is commutation diode five, J101 is switch, R1 is resistance one, R2 is resistance two, R3 is resistance three, R4 is resistance four, R5 is resistance five, R6 is resistance six, R7 is resistance seven, R8 is resistance eight, R9 is resistance nine, C1 is electric capacity one, C2 is electric capacity two, C3 is electric capacity three, C4 is electric capacity four, C5 is electric capacity five, C6 is electric capacity six, C101 is polar capacitor, P11 is the first level signal input of indoor set processor, P12 is the second electrical level signal input part of indoor set processor, P15 is the three level signal input of indoor set processor, P16 is the 4th level signal input of indoor set processor, P17 is the 5th level signal input of indoor set processor, Q1 is triode one, Q2 is triode two, Q3 is photoelectrical coupler one, Q4 is photoelectrical coupler two, Q5 is photoelectrical coupler three, 1 is a pin, 2 is No. two pins, 3 is No. three pins, 4 is No. four pins, VCC is DC supply input, VDD is 5V DC voltage input end, U is DC power supply end.
Detailed description of the invention
Below in conjunction with drawings and Examples, describe technical scheme of the present invention in detail.
Multi-connected air conditioner of the present invention is nonpolarity power supply communication network, comprise line control machine and at least one indoor set, line control machine comprises line control machine processor, indoor set comprises indoor set processor, line control machine also comprises line control machine communicating circuit, indoor set also comprises indoor set communicating circuit, wherein, line control machine communicating circuit is connected by bus with indoor set communicating circuit, have electric power polarity translation filtering module in line control machine communicating circuit, the power supply that electric power polarity translation filtering module exports provides working power for line control machine.
Embodiment
In this example, indoor set communicating circuit comprises DC supply input, communication module, supply module, power supply detection module, connection detection module and conducting control module, its system block diagram is as Fig. 1, line control machine communicating circuit comprises communication module, electric power polarity translation filtering module and DC power supply end, its system block diagram is as Fig. 6, communication module adopts MM1192 communication chip and peripheral communicating circuit thereof, its circuit theory diagrams are as Fig. 8, chip is wherein communication chip MM1192, itself carries codec circuit, the control signal of its in the future self processor is encoded, then the direct current carrier being attached to bus is transmitted, at receiving terminal (indoor set or line control machine), utilize MM1192 that the signals revivification that carrier wave leaches is become processor control signal equally, because MM1192 communication chip and peripheral communicating circuit thereof are existing standard circuit, no longer describe in detail herein, wherein, communication chip MM1192 pin configuration and function as follows:
PIN1:Receive DATA OUT Received signal strength exports PIN9:OUT (A) and sends signal output (A)
PIN2:VIN (8 ~ 40V) power supply input PIN10:OUT (B) sends signal and exports (B)
PIN3:Boost Capacitor bootstrap capacitor link PIN11:Vcc(5V) working power input
PIN4:Boost Capacitor bootstrap capacitor link PIN12:COLLECTOR (b) colelctor electrode (b)
PIN5:RESET PIN13：GND
PIN6:DATA IN sends signal input PIN14:COLLECTOR (a) colelctor electrode (a)
PIN7:out (b) exports Tr base drive pin (b) PIN15:IN (2) Received signal strength input (2)
PIN8:out (a) exports Tr base drive pin (a) PIN16:IN (1) Received signal strength input (1).
As Fig. 1, indoor set communicating circuit comprises DC supply input, communication module, supply module, power supply detection module, connection detection module and conducting control module, described DC supply input is connected with supply module, indoor set processor is connected with indoor set communication module, indoor set communication module is connected with supply module, power supply detection module is connected with supply module, and be connected with indoor set processor, connection detection module is connected with supply module, and be connected with indoor set processor, conducting control module is connected with supply module, and be connected with indoor set processor, supply module is connected with bus.What this DC supply input inputted is 15V dc source.
The circuit theory diagrams of supply module are as Fig. 2, supply module comprises coupling inductance one FL1, coupling inductance two FL2, electric capacity one C1, commutation diode five D5, switch J101, resistance one R1, resistance two R2 and resistance three R3, bus has two transmit pories, a transmit port of bus is connected by a pin one of coupling inductance one FL1, another transmit port is connected with No. two pin twos of coupling inductance one FL1, No. four pins 4 of coupling inductance one FL1 are connected with No. two pin twos of coupling inductance two FL2, and be connected with a port of communication module, No. three pins 3 of coupling inductance one FL1 are connected with No. four pins 4 of coupling inductance two FL2, and be connected with another port of communication module, a pin one of coupling inductance two FL2 is connected with a port of connection detection module, No. three pins 3 of coupling inductance two FL2 are connected with the negative pole of commutation diode five D5, and be connected with one end of resistance two R2, the other end of resistance two R2 is connected with another port of connection detection module, resistance three R3 is in parallel with electric capacity one C1, one end is connected with one end of resistance two R2, the other end is connected with conducting control module, the positive pole of commutation diode five D5 is connected with one end of resistance one R1, and be connected with one end of switch J101, the other end of switch J101 is connected with DC supply input, the other end of resistance one R1 is connected with power supply detection module.Wherein, the difference mode signal of coupling inductance two FL2 in filtering bus, coupling inductance one FL1 is used for the common-mode signal of filtering bus.
The circuit theory diagrams of power supply detection module are as Fig. 3, power supply detection module comprises photoelectrical coupler one Q3, ground wire, electric capacity two C2, resistance four R4 and 5V DC voltage input end VDD, the diode of described photoelectrical coupler one Q3 is rectified pole and is connected with supply module, negative pole is connected with ground wire, the triode end of photoelectrical coupler one Q3, emitter stage is connected with ground wire, and be connected with one end of electric capacity two C2, colelctor electrode is connected with the other end of electric capacity two C2, and connected by resistance four R4 and 5V DC voltage input end VDD, and be connected with the first level signal input P11 of indoor set processor.For whether detecting DC supply input VCC to bus-powered, detailed process is: when switch J101 short circuit, DC supply input VCC gives bus-powered, and photoelectrical coupler one Q3 is by conducting, and the signal that now the first level signal input P11 of indoor set processor detects is low level; When switch J101 disconnects, DC supply input VCC can not give bus-powered, and photoelectrical coupler one Q3 can not conducting, and the signal that now the first level signal input P11 of indoor set processor detects is high level.That is if the signal that the first level signal input P11 of indoor set processor detects is low level, then DC supply input VCC gives bus-powered; If the signal that the first level signal input P11 of indoor set processor detects is high level, then DC supply input VCC does not give bus-powered.
The circuit theory diagrams of connection detection module are as Fig. 4, connection detection module comprises 5V DC voltage input end VDD, photoelectrical coupler two Q4, photoelectrical coupler three Q5, electric capacity three C3, electric capacity four C4, resistance five R5, resistance six R6 and ground wire, the diode of described photoelectrical coupler two Q4 is rectified pole and is connected with the diode end negative pole of photoelectrical coupler three Q5, and be connected with a port of supply module, the diode end negative pole of photoelectrical coupler two Q4 is rectified pole with the diode of photoelectrical coupler three Q5 and is connected, and be connected with another port of supply module, the triode end of photoelectrical coupler two Q4, emitter stage is connected with ground wire, and be connected with one end of electric capacity three C3, colelctor electrode is connected with the other end of electric capacity three C3, and connected by resistance five R5 and 5V DC voltage input end VDD, and be connected with the second electrical level signal input part P12 of indoor set processor, the triode end of photoelectrical coupler three Q5, emitter stage is connected with ground wire, and be connected with one end of electric capacity four C4, colelctor electrode is connected with the other end of electric capacity four C4, and connected by resistance six R6 and 5V DC voltage input end VDD, and be connected with the three level signal input P15 of indoor set processor.Whether intactly connect for testbus, detailed process is: when bus connects intact, bus there is carrier voltage, photoelectrical coupler two Q4, photoelectrical coupler three Q5 one of them by conducting, the signal that now the corresponding second electrical level signal input part P12 of indoor set processor or the three level signal input P15 of indoor set processor detects is low level; When bus connects disconnection, when bus there is no carrier voltage, photoelectrical coupler two Q4 and photoelectrical coupler three Q5 can not conducting, and the signal that now the second electrical level signal input part P12 of indoor set processor and the three level signal input P15 of indoor set processor detects is all high level; When two bus short circuits, the two ends pressure drop of light photoelectrical coupler two Q4 and photoelectrical coupler three Q5 is 0, photoelectrical coupler two Q4 and photoelectrical coupler three Q5 can not conducting, and the signal that now the second electrical level signal input part P12 of indoor set processor and the three level signal input P15 of indoor set processor detects is all high level.That is, if the three level signal input P15 of the second electrical level signal input part P12 of indoor set processor and indoor set processor wherein any one signal detected be low level, then bus connect intact; If the signal that the three level signal input P15 of the second electrical level signal input part P12 of indoor set processor and indoor set processor detects is all high level, then bus connects disconnection or short circuit.
The circuit theory diagrams of conducting control module are as Fig. 5, conducting control module comprises triode one Q1, triode two Q2, electric capacity five C5, electric capacity six C6, resistance seven R7, resistance eight R8, resistance nine J1010, ground wire and 5V DC voltage input end VDD, the colelctor electrode of described triode one Q1 is connected with supply module, emitter stage is connected with one end of resistance seven R7, and be connected with one end of electric capacity five C5, and be connected with the 5th level signal input P17 of indoor set processor, the other end of resistance seven R7 is connected with ground wire, the other end of electric capacity five C5 is connected with ground wire, the base stage of triode one Q1 is connected with one end of resistance eight R8, the other end of resistance eight R8 is connected with the colelctor electrode of triode two Q2, the emitter stage of triode two Q2 is connected with 5V DC voltage input end VDD, and be connected with ground wire by electric capacity six C6, the base stage of triode two Q2 is connected with the 4th level signal input P16 of indoor set processor by resistance nine R9.For controlling DC supply input VCC, the whether conducting of earth-return circuit after bus, when the 4th level signal input P16 output low level of indoor set processor, triode one Q1 and triode two Q2 is by conducting, thus DC supply input VCC, the earth-return circuit conducting after bus; When the 4th level signal input P16 of indoor set processor exports high level; triode one Q1 and triode two Q2 can not conducting; thus DC supply input VCC; earth-return circuit after bus disconnects; power resistor seven R7 is for the protection of bus loop; when the electric current in bus is excessive, power resistor seven R7 will blow, thus play the effect of protection circuit.
Utilize connection detection module and conducting control module, can effectively prevent from damaging circuit because of bus short circuit.Detailed process is: when bus short circuit, the signal that the second electrical level signal input part P12 of indoor set processor and the three level signal input P15 of indoor set processor detects is all high level, now its 4th level signal input P16 is set to high level by indoor set processor, the earth-return circuit of bus is disconnected, thus effectively prevent and damage circuit because of bus short circuit.
As Fig. 6, line control machine communicating circuit comprises communication module, electric power polarity translation filtering module and DC power supply end, DC power supply end and electric power polarity translation filtering model calling, electric power polarity translation filtering module is connected with line control machine communication module, and be connected with bus, line control machine communication module is connected with line control machine processor, and is connected with bus.
The circuit theory diagrams of electric power polarity translation filtering module are as Fig. 7, electric power polarity translation filtering module comprises coupling inductance three FL3, commutation diode one D1, rectification diode D2, commutation diode three D3, commutation diode four D4, polar capacitor C101 and ground wire, described polar capacitor C101 negative pole is connected with ground wire, positive pole is connected with DC power supply end U, bus has two transmit pories, a transmit port is connected with a port of communication module, and be connected with No. three pins 3 of coupling inductance three FL3, No. two pin twos of described coupling inductance three FL3 are connected with the negative pole of Zener diode four D4, another transmit port of bus is connected with another port of communication module, and be connected with a pin one of coupling inductance three FL3, No. four pins 4 of coupling inductance three FL3 are connected with the negative pole of Zener diode three D3, the negative pole of Zener diode one D1 is connected with DC power supply end U, and be connected with the negative pole of Zener diode two D2, the positive pole of Zener diode one D1 is connected with the negative pole of Zener diode three D3, the positive pole of Zener diode two D2 is connected with the negative pole of Zener diode four D4, the positive pole of Zener diode three D3 is connected with the positive pole of Zener diode four D4, and be connected with ground wire.Here namely DC power supply end U refers to as whole line control machine provides the port of power supply.Wherein, commutation diode one D1, rectification diode D2, commutation diode three D3 and commutation diode four D4 are combined into polarity switching, and the power supply after dipole inversion is by the polarity effect not by bus power source.
The course of work that this example is basic and principle as follows:
At indoor set communicating circuit, close switch J101, DC supply input VCC, by after switch J101, commutation diode five D5, are loaded in bus; Simultaneously, from indoor set processor signal through communication chip MM1192 encode after, be coupled in bus through its peripheral communicating circuit again, power supply communication signal is superimposed as with input power, power supply communication signal after superposition, after the interference of coupling inductance one FL1 filtering common mode, give line control machine communicating circuit from bus transfer.Due to the one-way conduction of coupling inductance two FL2 filtering communication signal and commutation diode five D5, communication signal can not have influence on the dc source that DC supply input VCC inputs.
At line control machine communicating circuit, the power supply communication signal from indoor set communicating circuit is received from bus, by coupling inductance three FL3 filtering communication signal, after carrying out electric power polarity conversion and polar capacitor C101 filtering by commutation diode one D1, rectification diode D2, commutation diode three D3 and commutation diode four D4 again, for line control machine provides working power; Simultaneously, communication signal in the power supply communication signal of superposition is coupled to the bus receiving terminal of communication chip MM1192 by the peripheral communicating circuit of communication chip MM1192, communication signal from bus is decoded by last communication chip MM1192, and is transferred to line control machine processor.
In like manner, above inverse process can by the Signal transmissions of line control machine processor to indoor set processor.
Use above line control machine communicating circuit and indoor set communicating circuit, a line control machine can be realized and control multiple stage indoor set simultaneously.When will introduce a line control machine control N platform indoor set below, the course of work of whole communication network and principle, its system block diagram is as Fig. 9:
Power supply mode takes single power supply mode, namely when a line control machine controls multiple stage indoor set, only has an indoor set as main frame for line control machine provides power supply, and remaining indoor set is all as not providing power supply from machine.Take which to power, line control machine working power can be made more stable.Detailed process is: switch J101 closes by the indoor set as main frame, thus power supply is loaded in bus, now the first level signal input P11 of this indoor set processor detects low level signal, then the 4th level signal input P16 is set to low level signal by indoor set processor, the conducting of control bus earth-return circuit, allow bus to power on and flow back into this controller, as the indoor set from machine, switch J101 is disconnected, power supply can not be loaded in bus, now high level signal detected from the first level signal input P11 of machine processor, then from machine processor, the 4th level signal input P16 is set to high level signal, control bus earth-return circuit disconnects, electric current in bus is stoped to flow to this controller, after the switch J101 of main frame indoor set is closed, power supply is loaded in bus by main frame, for line control machine provides working power.Simultaneously for other provides carrier voltage from the communication of machine indoor set, make its antijamming capability stronger, the distance of energy effective communication is also farther.When main frame indoor set is in any moment of powering to line control machine, if the signal that the second electrical level signal input part P12 of host-processor and three level signal input P15 detects is all the situation of high level, illustrate bus breaks down (bus short circuit or disconnection), 4th level signal input P16 can be set to high level signal by main frame indoor set processor, control bus earth-return circuit disconnects, and avoids main frame indoor set communicating circuit to be damaged.When the signal detected from second electrical level signal input part P12 and the three level signal input P15 of machine indoor set processor is all high level, illustrate bus breaks down (bus short circuit or disconnection), although inherently disconnect from the bus earth-return circuit of machine indoor set, generally can not make to damage from machine indoor set communicating circuit, but by the signal detected, can know and cause the reason of communication failure to be bus short circuit or disconnection.The communication modes of line control machine and each indoor set is taked by platform circulation communication.
Claims (9)
1. the nonpolarity power supply communication system of multi-connected air conditioner, comprise line control machine and at least one indoor set, described line control machine comprises line control machine processor, indoor set comprises indoor set processor, it is characterized in that, described line control machine also comprises line control machine communicating circuit, described indoor set also comprises indoor set communicating circuit, described line control machine communicating circuit is connected by bus with indoor set communicating circuit, have electric power polarity translation filtering module in described line control machine communicating circuit, the power supply that electric power polarity translation filtering module exports provides working power for line control machine.
2. the nonpolarity power supply communication system of multi-connected air conditioner as claimed in claim 1, it is characterized in that, described indoor set communicating circuit comprises DC supply input, communication module, supply module, power supply detection module, connection detection module and conducting control module, described DC supply input is connected with supply module, indoor set processor is connected with indoor set communication module, indoor set communication module is connected with supply module, power supply detection module is connected with supply module, and be connected with indoor set processor, connection detection module is connected with supply module, and be connected with indoor set processor, conducting control module is connected with supply module, and be connected with indoor set processor, supply module is connected with bus.
3. the nonpolarity power supply communication system of multi-connected air conditioner as claimed in claim 2, it is characterized in that, described supply module comprises coupling inductance one, coupling inductance two, electric capacity one, commutation diode five, switch, resistance one, resistance two and resistance three, bus has two transmit pories, a transmit port of bus is connected by a pin of coupling inductance one, another transmit port is connected with No. two pins of coupling inductance one, No. four pins of coupling inductance one are connected with No. two pins of coupling inductance two, and be connected with a port of communication module, No. three pins of coupling inductance one are connected with No. four pins of coupling inductance two, and be connected with another port of communication module, a pin of coupling inductance two is connected with a port of connection detection module, No. three pins of coupling inductance two are connected with the negative pole of commutation diode five, and be connected with one end of resistance two, the other end of resistance two is connected with another port of connection detection module, resistance three is in parallel with electric capacity one, one end is connected with one end of resistance two, the other end is connected with conducting control module, the positive pole of commutation diode five is connected with one end of resistance one, and be connected with one end of switch, the other end of switch is connected with DC supply input, the other end of resistance one is connected with power supply detection module.
4. the nonpolarity power supply communication system of multi-connected air conditioner as claimed in claim 2, it is characterized in that, described power supply detection module comprises photoelectrical coupler one, ground wire, electric capacity two, resistance four and 5V DC voltage input end, the diode of described photoelectrical coupler one is rectified pole and is connected with supply module, negative pole is connected with ground wire, the triode end of photoelectrical coupler one, emitter stage is connected with ground wire, and be connected with one end of electric capacity two, colelctor electrode is connected with the other end of electric capacity two, and be connected with 5V DC voltage input end by resistance four, and be connected with the first level signal input of indoor set processor.
5. the nonpolarity power supply communication system of multi-connected air conditioner as claimed in claim 2, it is characterized in that, described connection detection module comprises 5V DC voltage input end, photoelectrical coupler two, photoelectrical coupler three, electric capacity three, electric capacity four, resistance five, resistance six and ground wire, the diode of described photoelectrical coupler two is rectified pole and is connected with the diode end negative pole of photoelectrical coupler three, and be connected with a port of supply module, the diode end negative pole of photoelectrical coupler two is rectified pole with the diode of photoelectrical coupler three and is connected, and be connected with another port of supply module, the triode end of photoelectrical coupler two, emitter stage is connected with ground wire, and be connected with one end of electric capacity three, colelctor electrode is connected with the other end of electric capacity three, and be connected with 5V DC voltage input end by resistance five, and be connected with the second electrical level signal input part of indoor set processor, the triode end of photoelectrical coupler three, emitter stage is connected with ground wire, and be connected with one end of electric capacity four, colelctor electrode is connected with the other end of electric capacity four, and be connected with 5V DC voltage input end by resistance six, and be connected with the three level signal input of indoor set processor.
6. the nonpolarity power supply communication system of multi-connected air conditioner as claimed in claim 2, it is characterized in that, described conducting control module comprises triode one, triode two, electric capacity five, electric capacity six, resistance seven, resistance eight, resistance nine, ground wire and 5V DC voltage input end, the colelctor electrode of described triode one is connected with supply module, emitter stage is connected with one end of resistance seven, and be connected with one end of electric capacity five, and be connected with the 4th level signal input of indoor set processor, the other end of resistance seven is connected with ground wire, the other end of electric capacity five is connected with ground wire, the base stage of triode one is connected with one end of resistance eight, the other end of resistance eight is connected with the colelctor electrode of triode two, the emitter stage of triode two is connected with 5V DC voltage input end, and be connected with ground wire by electric capacity six, the base stage of triode two is connected with the 4th level signal input of indoor set processor by resistance nine.
7. the nonpolarity power supply communication system of multi-connected air conditioner as claimed in claim 1, it is characterized in that, described line control machine communicating circuit comprises communication module, electric power polarity translation filtering module and DC power supply end, DC power supply end and electric power polarity translation filtering model calling, electric power polarity translation filtering module is connected with line control machine communication module, and be connected with bus, line control machine communication module is connected with line control machine processor, and is connected with bus.
8. the nonpolarity power supply communication system of multi-connected air conditioner as claimed in claim 7, it is characterized in that, described electric power polarity translation filtering module comprises coupling inductance three, commutation diode one, rectification diode, commutation diode three, commutation diode four, polar capacitor and ground wire, described polar capacitor negative pole is connected with ground wire, positive pole is connected with DC power supply end, bus has two transmit pories, a transmit port is connected with a port of communication module, and be connected with No. three pins of coupling inductance three, No. two pins of described coupling inductance three are connected with the negative pole of Zener diode four, another transmit port of bus is connected with another port of communication module, and be connected with a pin of coupling inductance three, No. four pins of coupling inductance three are connected with the negative pole of Zener diode three, the negative pole of Zener diode one is connected with DC power supply end, and be connected with the negative pole of Zener diode two, the positive pole of Zener diode one is connected with the negative pole of Zener diode three, the positive pole of Zener diode two is connected with the negative pole of Zener diode four, the positive pole of Zener diode three is connected with the positive pole of Zener diode four, and be connected with ground wire.
9. the nonpolarity power supply communication system of multi-connected air conditioner as described in Claims 2 or 3 or 4 or 5 or 6 or 7 or 8, is characterized in that, described communication module adopts the communication module be made up of MM1192 communication chip and peripheral communicating circuit thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558641.XA CN103075782B (en) | 2012-12-20 | 2012-12-20 | Non-polar power supplying communication system of multi-connection type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558641.XA CN103075782B (en) | 2012-12-20 | 2012-12-20 | Non-polar power supplying communication system of multi-connection type air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103075782A CN103075782A (en) | 2013-05-01 |
| CN103075782B true CN103075782B (en) | 2015-06-17 |
Family
ID=48152405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210558641.XA Active CN103075782B (en) | 2012-12-20 | 2012-12-20 | Non-polar power supplying communication system of multi-connection type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103075782B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329779B (en) * | 2014-11-27 | 2017-01-18 | 珠海格力电器股份有限公司 | Gateway controller and control system of air conditioning unit |
| CN105743344A (en) * | 2016-04-14 | 2016-07-06 | 西安许继电力电子技术有限公司 | Isolated three-level bidirectional DC-DC converter with coupling inductor |
| CN108534298B (en) * | 2018-05-03 | 2023-11-14 | 珠海格力电器股份有限公司 | Slave communication circuit, slave, electrical equipment, master-slave communication circuit and method |
| CN110854951B (en) * | 2019-11-12 | 2021-04-09 | 珠海格力电器股份有限公司 | Power supply system for high-power air conditioner wire controller, air conditioner and power supply method |
| CN111306743B (en) * | 2020-03-02 | 2021-06-18 | 广东美的暖通设备有限公司 | Air conditioner and multi-split central air conditioner |
| CN111412588A (en) * | 2020-03-31 | 2020-07-14 | 广东美的制冷设备有限公司 | Control method of air conditioner system, server and medium |
| CN111442511B (en) * | 2020-04-08 | 2021-10-26 | 广东美的暖通设备有限公司 | Air conditioner communication control method and device and computer readable storage medium |
| CN111829151B (en) * | 2020-07-29 | 2021-11-30 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN112268357B (en) * | 2020-10-12 | 2022-06-10 | 青岛海信日立空调系统有限公司 | Air conditioner communication control circuit and air conditioner |
| CN112432313A (en) * | 2020-12-09 | 2021-03-02 | 广东美的暖通设备有限公司 | Communication power supply circuit and air conditioning equipment |
| CN112696742B (en) * | 2021-02-02 | 2022-04-19 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN113507283A (en) * | 2021-07-02 | 2021-10-15 | 青鸟消防股份有限公司 | Non-polar bus isolating switch |
| CN113915742B (en) * | 2021-09-08 | 2023-12-22 | 青岛海尔空调电子有限公司 | Communication control method and device for multi-split air conditioning system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001112069A (en) * | 1999-10-04 | 2001-04-20 | Ebara Corp | Communication system |
| CN2522776Y (en) * | 2002-02-09 | 2002-11-27 | 海信集团有限公司 | Polar-less connection circuit of multi-on-line coditioner communication network |
| KR100691228B1 (en) * | 2005-07-26 | 2007-03-12 | 삼성전자주식회사 | Non-polar two-wire type indoor and outdoor communication device for multi type air conditioner |
| CN200952799Y (en) * | 2006-09-25 | 2007-09-26 | 四川长虹电器股份有限公司 | Air conditioning machine set |
| CN201539944U (en) * | 2009-10-19 | 2010-08-04 | 深圳市艾苏威尔科技发展有限公司 | Air conditioning operation monitoring device |
| CN102394734B (en) * | 2011-07-29 | 2014-04-16 | 四川长虹电器股份有限公司 | RS 485 communication system with nonpolarized connection and control method thereof |
| CN102324952B (en) * | 2011-09-30 | 2013-12-04 | 深圳麦克维尔空调有限公司 | Non-polar two-line system communication circuit |
-
2012
- 2012-12-20 CN CN201210558641.XA patent/CN103075782B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103075782A (en) | 2013-05-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103075782B (en) | Non-polar power supplying communication system of multi-connection type air conditioner | |
| CN106130084B (en) | Uninterruptible power supply | |
| CN202711493U (en) | Parking stall guiding system | |
| CN101013321A (en) | Intelligent actuator of greenhouse based on Ethernet and wireless sensor network | |
| CN105515223B (en) | The radio transmitting method and circuit of a kind of high-power power | |
| CN103227636B (en) | A kind of high isolation for multi-controller interconnection directly and connects half-duplex operation interface module | |
| CN205754408U (en) | A kind of switch with forward and reverse function of supplying power | |
| CN103227758A (en) | Optical fiber Ethernet switch and control method | |
| CN102495613A (en) | Controller area network (CAN)-control-based auxiliary control unit for locomotive | |
| CN105159222A (en) | Remote start control circuit for master-slave industrial control equipment | |
| CN202713373U (en) | Multi-protocol converter | |
| CN201869195U (en) | Small-sized power line communication electrical equipment | |
| CN104483917B (en) | A kind of multi-connected machine current ring communication system | |
| CN208766506U (en) | A kind of and machine CAN build-out resistor automatic identification circuit and CAN and machine equipment | |
| CN203882431U (en) | Data acquisition device supporting wire/wireless hybrid network | |
| CN207018601U (en) | A kind of valve based on wireless network control | |
| CN105812740A (en) | Information construction and management device suitable for project supervision | |
| CN106374972B (en) | The communication system and its control method of intelligent micro-circuit breaker | |
| CN206096858U (en) | Intelligence airing machine's remote control and monitored control system | |
| CN104071166B (en) | 2 get 2 cab signal security of system interface subrack and container structures thereof | |
| CN204719474U (en) | A kind of emergent sniffing robot power source management control system | |
| CN210867675U (en) | Two-wire non-polarity half-duplex communication and power supply circuit | |
| CN106707946A (en) | Data line for communication between S7-200 PLC (Programmable Logic Controller) and ACE3600 RTU (Remote Terminal Unit) | |
| CN205583849U (en) | Isolated form DC power supply panel monitoring module | |
| CN204832910U (en) | Data line of S7 -200PLC and ACE3600RTU communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |