CN207281508U - A kind of air conditioner control circuit and air conditioner - Google Patents
A kind of air conditioner control circuit and air conditioner Download PDFInfo
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- CN207281508U CN207281508U CN201720773682.9U CN201720773682U CN207281508U CN 207281508 U CN207281508 U CN 207281508U CN 201720773682 U CN201720773682 U CN 201720773682U CN 207281508 U CN207281508 U CN 207281508U
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Abstract
The utility model discloses a kind of air conditioner control circuit and air conditioner, the control circuit includes outdoor unit control panel and indoor unit control panel, after machine control panel receives off signal indoors, control the first relay electric-loss, the signal receiving end of second main control chip receives lasting low level signal, control the 3rd relay electric-loss, so that whole outdoor unit control panel dead electricity, so as to reduce the stand-by power consumption of outdoor unit control panel, reduce the energy consumption of air conditioner, the use cost of air conditioner is thereby reduced, improves the market competitiveness of air conditioner；Moreover, after machine control panel receives starting-up signal indoors, by four relays of control whether obtaining electric so that outdoor unit control panel powers on.The utility model realizes upper electric control and the power down control to outdoor unit control panel, control is simple and convenient, is easy to implement, and cost is relatively low, reduces the stand-by power consumption of outdoor unit control panel by the power on/off of four relays of control.
Description
Technical field
The utility model belongs to field of circuit technology, is to be related to a kind of controller controling circuit and air conditioner specifically.
Background technology
Air conditioning energy consumption is the rich and influential family in building energy consumption.Be becoming tight the day of energy supply and people to indoor environment and
The requirement of air quality is higher and higher, and an urgent demand reduces empty to greatest extent on the premise of air conditioning area comfort level is kept
Adjust energy consumption.
When air-conditioning works normally, after start, indoor unit and outdoor unit master control borad have been required for electricity, and indoor unit is responsible for parsing
The control instruction of user, such as the switching on and shutting down of remote controler, line control machine, WIFI etc., pattern, wind speed, temperature information, and by these
Information is delivered to outdoor master control borad, and outdoor master control borad integrates these information operations, control compressor, outdoor fan, four-way valve,
The device activities such as electric expansion valve.In shutdown, the compressor of outdoor pusher side, outdoor fan etc. is that work is not required,
Avoid the need for providing electric energy to outdoor plate.But current way is, outdoor plate has electricity always, in stand-by operation state, with
When wait user instruction.Stand-by power consumption is so virtually increased, although the stand-by power consumption of electronic device is at present
It is very low, but for complicated commercial air conditioning system, this, which still needs, consumes very big energy.
The content of the invention
The utility model provides a kind of air conditioner control circuit, reduces the stand-by power consumption of outdoor unit control panel.
In order to solve the above technical problems, the utility model is achieved using following technical scheme：
A kind of air conditioner control circuit, including indoor unit control panel, outdoor unit control panel；The of the indoor unit control panel
One fire line terminal, the first zero terminal, the first communication terminal and the second fire line terminal, the second zero line side of outdoor unit control panel
Son, the second communication terminal correspond to connection, and first fire line terminal, the first zero terminal correspond to the exterior firewire of connection, zero curve；Institute
Stating indoor unit control panel includes the first power circuit, the first main control chip, the first photoelectrical coupler, the second photoelectrical coupler, the
One switching tube, the first relay, the second relay；First fire line terminal, the first zero terminal are electric with the first power supply respectively
Two input terminals connection on road, first power circuit are powered for each electricity consumption device of indoor unit control panel；First master
Control the logical of the current supply circuit of the break-make of the current supply circuit of the coil of the first relay of chip controls and the coil of the second relay
It is disconnected；The control terminal of the signal output part connection first switch pipe of first main control chip；The hair of first photoelectrical coupler
One end connection DC power supply at light end, the other end are grounded by the switch ways of first switch pipe；First photoelectrical coupler
One end of light-receiving end the first fire line terminal is connected by the normally opened contact of the first relay, first photoelectrical coupler by
The other end at light end connects one end of the luminous end of the second photoelectrical coupler, the luminous end of second photoelectrical coupler it is another
The first communication terminal of end connection；One end connection DC power supply of the light-receiving end of second photoelectrical coupler, the other end pass through limit
Leakage resistance is grounded, and the other end connects the signal receiving end of the first main control chip by current-limiting resistance；Second relay
Normally opened contact be connected between the first zero terminal and the first communication terminal；The outdoor unit control panel includes second source electricity
Road, the second main control chip, the 3rd photoelectrical coupler, the 4th photoelectrical coupler, second switch pipe, the 3rd relay, the 4th relay
Device；One input terminal of the second fire line terminal connection second source circuit, second zero terminal pass through the 3rd relay
Another input terminal of the normally opened contact connection second source circuit of device, the second source circuit are each for outdoor unit control panel
Electricity consumption device is powered；Second main control chip controls the break-make and the 4th relay of the current supply circuit of the coil of the 3rd relay
The break-make of the current supply circuit of the coil of device；The movable contact of 4th relay connects the second communication terminal, the 4th relay
The normally opened stationary contact of device connects one end of the light-receiving end of the 4th photoelectrical coupler, the light-receiving end of the 4th photoelectrical coupler it is another
One end connects one end of the luminous end of the 3rd photoelectrical coupler, and the other end of the luminous end of the 3rd photoelectrical coupler passes through the
The normally opened contact of three relays connects the second zero terminal；The normally closed stationary contact connection second source circuit of 4th relay
Another input terminal；The control terminal of the signal sending end connection second switch pipe of second main control chip, the 4th light
One end of the luminous end of electric coupler connects DC power supply, the switch ways that the other end passes through second switch pipe by current-limiting resistance
Ground connection；One end connection DC power supply of the light-receiving end of 3rd photoelectrical coupler, the other end are grounded by current-limiting resistance, and
The other end connects the signal receiving end of the second main control chip by current-limiting resistance.
Further, the indoor unit control panel further includes charge-discharge circuit, and the charge-discharge circuit includes the one or two pole
Pipe, voltage-stabiliser tube, charging capacitor；The normally opened contact and the first photoelectrical coupler of first Diode series in the first relay
Between light-receiving end；The anode of the voltage-stabiliser tube connects the first zero terminal, and the cathode of the voltage-stabiliser tube connects the first diode
Cathode；The cathode of the charging capacitor connects the cathode of the first diode, and the anode of the charging capacitor connects the first zero line side
Son.
Further, the indoor unit control panel further includes the second diode and the 5th relay, the two or two pole
The anode of the anode connection voltage-stabiliser tube of pipe, the cathode of second diode connect the first zero terminal；5th relay
Normally opened contact be connected in parallel on the second diode both ends, first main control chip controls the current supply circuit of the coil of the 5th relay
Break-make.
Further, it is connected with filter capacitor between the cathode and the first zero terminal of the charging capacitor.
Further, it is connected with another filter capacitor between first zero terminal and the first communication terminal.
Preferably, the indoor unit control panel further includes the 3rd diode, the anode connection second of the 3rd diode
The other end of the luminous end of photoelectrical coupler, cathode connect the first communication terminal.
Further, it is connected with protective resistance at the both ends of the luminous end of second photoelectrical coupler.
Further, the first switch pipe is NPN type triode or NMOS tube；When the first switch pipe is NPN
During type triode, the base stage of the NPN type triode connects the signal sending end of the first main control chip, emitter ground connection, current collection
Pole connects the other end of the luminous end of the first photoelectrical coupler；When the first switch pipe is NMOS tube, the NMOS tube
Grid connects the signal sending end of the first main control chip, source electrode ground connection, and drain electrode connects the another of the luminous end of the first photoelectrical coupler
One end.
Further, the second switch pipe is NPN type triode or NMOS tube；When the second switch pipe is NPN
During type triode, the base stage of the NPN type triode connects the signal sending end of the second main control chip, emitter ground connection, current collection
Pole connects the other end of the luminous end of the 4th photoelectrical coupler；When the second switch pipe is NMOS tube, the NMOS tube
Grid connects the signal sending end of the second main control chip, source electrode ground connection, and drain electrode connects the another of the luminous end of the 4th electric coupler
End.
A kind of air conditioner, including above-mentioned control circuit, the control circuit includes indoor unit control panel, outdoor unit controls
Plate；First fire line terminal of the indoor unit control panel, the first zero terminal, the of the first communication terminal and outdoor unit control panel
Two fire line terminals, the second zero terminal, the second communication terminal correspond to connection, first fire line terminal, the first zero terminal pair
Exterior firewire, zero curve should be connected；The indoor unit control panel includes the first power circuit, the first main control chip, the first photoelectricity coupling
Clutch, the second photoelectrical coupler, first switch pipe, the first relay, the second relay；First fire line terminal, the 1st
Line terminals are connected with two input terminals of the first power circuit respectively, and first power circuit is used for each of indoor unit control panel
Electrical part is powered；First main control chip controls the break-make and the second relay of the current supply circuit of the coil of the first relay
Coil current supply circuit break-make；The control terminal of the signal output part connection first switch pipe of first main control chip；Institute
One end connection DC power supply of the luminous end of the first photoelectrical coupler is stated, the other end is connect by the switch ways of first switch pipe
Ground；One end of the light-receiving end of first photoelectrical coupler connects the first fire line terminal by the normally opened contact of the first relay,
The other end of the light-receiving end of first photoelectrical coupler connects one end of the luminous end of the second photoelectrical coupler, second light
The other end of the luminous end of electric coupler connects the first communication terminal；One end connection of the light-receiving end of second photoelectrical coupler
DC power supply, the other end are grounded by current-limiting resistance, and the other end connects the signal of the first main control chip by current-limiting resistance
Receiving terminal；The normally opened contact of second relay is connected between the first zero terminal and the first communication terminal；The outdoor
Machine control panel includes second source circuit, the second main control chip, the 3rd photoelectrical coupler, the 4th photoelectrical coupler, second switch
Pipe, the 3rd relay, the 4th relay；One input terminal of second fire line terminal connection second source circuit, described the
Two zero terminals connect another input terminal of second source circuit, the second source by the normally opened contact of the 3rd relay
Circuit is powered for each electricity consumption device of outdoor unit control panel；Second main control chip controls the power supply of the coil of the 3rd relay
The break-make of the current supply circuit of the coil of the break-make in circuit and the 4th relay；The movable contact connection second of 4th relay
Communication terminal, one end of the light-receiving end of normally opened stationary contact the 4th photoelectrical coupler of connection of the 4th relay, the described 4th
The other end of the light-receiving end of photoelectrical coupler connects one end of the luminous end of the 3rd photoelectrical coupler, the 3rd photoelectrical coupler
The other end of luminous end the second zero terminal is connected by the normally opened contact of the 3rd relay；4th relay it is normally closed
Stationary contact connects another input terminal of second source circuit；The signal sending end connection second switch of second main control chip
The control terminal of pipe, one end of the luminous end of the 4th photoelectrical coupler connect DC power supply by current-limiting resistance, and the other end leads to
Cross the switch ways ground connection of second switch pipe；One end connection DC power supply of the light-receiving end of 3rd photoelectrical coupler, it is another
End is grounded by current-limiting resistance, and the other end connects the signal receiving end of the second main control chip by current-limiting resistance.
Compared with prior art, the advantages of the utility model and good effect is：The air conditioner control electricity of the utility model
Road and air conditioner, after machine control panel receives off signal indoors, control the first relay electric-loss, the letter of the second main control chip
Number receiving terminal receives lasting low level signal, controls the 3rd relay electric-loss so that whole outdoor unit control panel dead electricity, from
And the stand-by power consumption of outdoor unit control panel is reduced, the energy consumption of air conditioner is reduced, thereby reduces the use cost of air conditioner, is carried
The high market competitiveness of air conditioner；Moreover, after machine control panel receives starting-up signal indoors, by controlling four relays
It is electric whether so that outdoor unit control panel powers on.
After the detailed description of the utility model embodiment is read in conjunction with the figure, other features and advantage of the utility model
It will become clearer.
Brief description of the drawings
Fig. 1 is a kind of circuit diagram of the embodiment for the air conditioner control circuit that the utility model is proposed；
Fig. 2 is the circuit diagram of another embodiment for the air conditioner control circuit that the utility model is proposed.
Embodiment
Specific embodiment of the present utility model is described in more detail below in conjunction with the accompanying drawings.
The air conditioner control circuit of the present embodiment, mainly includes indoor unit control panel and outdoor unit control panel；Indoor unit control
The first fire line terminal L1, the first zero terminal N1, the second firewire of the first communication terminal COMM1 and outdoor unit control panel of making sheet
Terminal L2, the second zero terminal N2, the second communication terminal COMM2 correspond to connection, the first fire line terminal L1, the first zero terminal N1
Corresponding connection outside firewire, zero curve, it is shown in Figure 1.
Indoor unit control panel mainly includes the first power circuit, the first main control chip, the first photoelectrical coupler IC4, second
Photoelectrical coupler IC6, first switch pipe N11, the first relay K1, the second relay K2；First fire line terminal L1 connections first
One input terminal of power circuit, another input terminal of first zero terminal N1 the first power circuits of connection, the first power supply electricity
Road is used to be changed the power supply that firewire, zero curve provide, and is then output to each electricity consumption device of indoor unit control panel, for interior
Each electricity consumption device power supply of machine control panel；First main control chip control the first relay K1 coil current supply circuit break-make with
And second relay K2 coil current supply circuit break-make.
The signal output part of first main control chip connects the control terminal of first switch pipe N11 by current-limiting resistance；First light
One end of the luminous end of electric coupler IC4 passes through current-limiting resistance R134 connection DC power supplies（The DC power supply is by the first power supply electricity
Road generates, such as the voltage of the DC power supply is 5V）, the other end of the luminous end of the first photoelectrical coupler IC4 opens by first
Close the switch ways ground connection of pipe N11；Touched by the normally opened of the first relay K1 one end of the light-receiving end of first photoelectrical coupler IC4
Point the first fire line terminal L1 of connection, the other end of the light-receiving end of the first photoelectrical coupler IC4 connect the second photoelectrical coupler IC6's
One end of luminous end, the other end of the luminous end of the second photoelectrical coupler IC6 connect the first communication terminal COMM1；Second photoelectricity
One end connection DC power supply of the light-receiving end of coupler IC6（Such as 5V）, the other end of the light-receiving end of the second photoelectrical coupler IC6 leads to
Current-limiting resistance R66 ground connection is crossed, and the other end of the light-receiving end of the second photoelectrical coupler IC6 passes through current-limiting resistance R53 connections the
The signal receiving end of one main control chip.The normally opened contact of second relay K2 is connected to the first zero terminal N1 and the first communication ends
Between sub- COMM1.
Outdoor unit control panel mainly includes second source circuit, the second main control chip, the 3rd photoelectrical coupler IC10, the 4th
Photoelectrical coupler IC11, second switch pipe N5, the 3rd relay K3, the 4th relay K4；Second fire line terminal L2 connections second
One input terminal of power circuit, the second zero terminal N2 connect second source circuit by the normally opened contact of the 3rd relay K3
Another input terminal, second source circuit be used for the power supply that firewire, zero curve provide is changed, be then output to outdoor unit
Each electricity consumption device of control panel, is that each electricity consumption device of outdoor unit control panel is powered；Second main control chip controls the 3rd relay
The break-make of the current supply circuit of the coil of the break-make of the current supply circuit of the coil of K3 and the 4th relay K4.
The movable contact of 4th relay K4 connects the second communication terminal COMM2, and the normally opened stationary contact of the 4th relay K4 connects
Connect one end of the light-receiving end of the 4th photoelectrical coupler IC11, the other end connection the 3rd of the light-receiving end of the 4th photoelectrical coupler IC11
One end of the luminous end of photoelectrical coupler IC10, the other end of the luminous end of the 3rd photoelectrical coupler IC10 pass through the 3rd relay
The normally opened contact of K3 connects the second zero terminal N2；The normally closed stationary contact of 4th relay K4 connects the another of second source circuit
A input terminal.
The signal sending end of second main control chip is by the control terminal of current-limiting resistance R109 connection second switch pipes N5, and the 4th
One end of the luminous end of photoelectrical coupler IC11 passes through current-limiting resistance R43 connection DC power supplies（The DC power supply is by second source
Circuit evolving, such as the voltage of the DC power supply is 5V）, the other end is grounded by the switch ways of second switch N5 pipes；3rd
One end connection of the light-receiving end of photoelectrical coupler IC10 passes through current-limiting resistance R42 connection DC power supplies（The DC power supply is by second
Power circuit generates, such as the voltage of the DC power supply is 5V）, the other end is grounded by current-limiting resistance R108, and the 3rd light
The signal receiving end that the other end of the light-receiving end of electric coupler IC10 passes through current-limiting resistance R112 the second main control chips of connection.
In the present embodiment, first switch pipe, second switch pipe are high conduction voltage drop switching tube.
Signal output part, the signal receiving end of first main control chip are UART interface, and the signal of the second main control chip is defeated
Outlet, signal receiving end are also UART interface.
In the present embodiment, the first power circuit includes rectifier bridge B1 and first switch power supply, and one of rectifier bridge B1 is defeated
Entering the first fire line terminal L1 of end connection, another input terminal of rectifier bridge B1 connects the first zero terminal N1, and the two of rectifier bridge B1
A output terminal connects first switch power supply.The AC rectification of input is direct current by rectifier bridge B1, and is exported to first switch
The direct current of input is carried out the DC power supply of voltage conversion, output voltage 5V, 12V etc. by power supply, first switch power supply, 5V or
The DC power supply of 12V is the power supply of the light current electricity consumption devices such as the first main control chip on indoor unit control panel.
Similarly, second source circuit includes rectifier bridge B2 and second switch power supply, the input terminal connection of rectifier bridge B2
Another input terminal of second fire line terminal L2, rectifier bridge B2 connect the second zero line side by the normally opened contact of the 3rd relay K3
Sub- N2, and another input terminal of rectifier bridge B2 connects the normally closed stationary contact 5 of the 4th relay K4；Two outputs of rectifier bridge B2
End connection second switch power supply.The AC rectification of input is direct current by rectifier bridge B2, and is exported and given second switch power supply, the
The direct current of input is carried out the DC power supply of voltage conversion, output voltage 5V, 12V etc. by two Switching Power Supplies；Rectifier bridge B2 is defeated
The direct current gone out is the equipment electricity consumption such as compressor, wind turbine, and the DC power supply of 5V or 12V are the second master control on outdoor unit control panel
The light current electricity consumption such as chip device is powered.
Outdoor unit control panel power up is as described below, and original state is the equal dead electricity of relay K1, K2, K3, K4, relay
The movable contact 3 of K4 is connected with normally closed stationary contact 5.
（1）After first main control chip receives the starting-up signal of remote controler, output timing signal control timer starts to count
When, and control the coil of relay K2 to power on, the normally opened contact closure of K2；An input terminal of rectifier bridge B2 passes through the second firewire
Terminal L2, the first fire line terminal L1 are connected with firewire；The normally closed stationary contact that another input terminal of rectifier bridge B2 passes through relay K4
Point 5, movable contact 3, the second communication terminal COMM2, the first communication terminal COMM1, the normally opened contact of relay K2, the first zero line side
Sub- N1 is connected with zero curve；I.e. firewire and zero curve provide alternating current for rectifier bridge B2, and rectifier bridge B2 is converted to the alternating current of input
Direct current, exports after giving second switch power supply, second switch power supply to be changed the voltage received, exports power supply,
Power for second main control chip etc..So far, outdoor unit control panel is powered.
（2）After the power is turned on, the coil of control relay K3, K4 powers on second main control chip, the normally opened contact closure of K3, K4
Movable contact 3 is connected with normally opened stationary contact 4, i.e. line conduction between the second zero terminal N2 and the input terminal of rectifier bridge B2,
The connection line conduction of the light-receiving end of two communication terminal COMM2 and the 4th photoelectrical coupler IC11.After timing arrives, timer
The first main control chip, the coil losing electricity of the first main control chip control relay K2 are outputed signal to, the normally opened contact of K2 disconnects；The
The coil of one main control chip control K1 powers on, the normally opened contact closure of K1, and firewire can be that photoelectrical coupler IC4 powers, indoor
Communication between machine control panel and outdoor unit control panel is formally established, and can carry out normal communication.
Timer can realize that physical circuit design can refer to the prior art, and details are not described herein again by building integrated circuit.
The power down process of outdoor unit control panel is：After first main control chip receives the off signal of remote controler, control after
The coil blackout of electric appliance K1, the normally opened contact of K1 disconnect, and IC4 light-receiving ends disconnect, and the luminous end of IC6 does not shine, the light-receiving end of IC6
Disconnect, the signal receiving end of the first main control chip receives lasting low level signal；The light-receiving end of IC11 disconnects, the hair of IC10
Light end does not shine, and the light-receiving end of IC10 disconnects, and the signal receiving end of the second main control chip receives lasting low level signal.The
After the signal receiving end of two main control chips receives lasting low level signal, the coil losing electricity of control relay K3, K3's is normal
Open contact to disconnect, the connection circuit of rectifier bridge B2 and zero curve disconnects, rectifier bridge B2 dead electricity, second switch power loss, therefore whole
A outdoor unit control panel power down, the coil losing electricity of relay K4, movable contact 3 are connected with normally closed stationary contact 5.
The control circuit of the present embodiment, after machine control panel receives off signal indoors, the first relay K1 of control loses
Electricity, the signal receiving end of the second main control chip receive lasting low level signal, control the 3rd relay K3 dead electricity so that whole
A outdoor unit control panel dead electricity, so as to reduce the stand-by power consumption of outdoor unit control panel, reduces the energy consumption of air conditioner, and then reduce
The use cost of air conditioner, improves the market competitiveness of air conditioner；Moreover, machine control panel receives starting-up signal indoors
Afterwards, by four relays of control whether obtaining electric so that outdoor unit control panel powers on.Therefore, the control circuit of the present embodiment,
By controlling the power on/off of four relays, upper electric control and the power down control to outdoor unit control panel, control letter are realized
Folk prescription just, be easy to implement, and cost is relatively low, reduces the stand-by power consumption of outdoor unit control panel；Moreover, pass through four photoelectric couplings
Device, two switching tubes realize the communication between indoor unit control panel and outdoor unit control panel, simple in structure, cost is low, easy to reality
It is existing, and communication is reliable and stable, communication efficiency is good.
In the present embodiment, indoor unit control panel further includes charge-discharge circuit, steady to improve the power supply of photoelectrical coupler IC4
Qualitative, the charge-discharge circuit includes the first diode D11, voltage-stabiliser tube ZD4, charging capacitor E4, shown in Figure 1；One or two
Pole pipe D11 is connected between the normally opened contact of the first relay K1 and the light-receiving end of the first photoelectrical coupler IC4；Voltage-stabiliser tube ZD4
Anode connect the first zero terminal COMM1, ZD4 cathode connect the first diode D11 cathode；The cathode of charging capacitor E4
The cathode of the first diode D11 is connected, the anode of charging capacitor E4 connects the first zero terminal COMM1, in charging capacitor E4 two
End is parallel with resistance R12.
After the normally opened contact closure of first relay K1, the first diode D11 carries out halfwave rectifier to alternating current, after rectification
Direct current be charging capacitor E4 charging；And due to the effect of voltage-stabiliser tube ZD4 so that the voltage stabilization at charging capacitor E4 both ends
（Such as 18V）, so as to provide steady dc voltage for photoelectrical coupler IC4, and then improve indoor unit control panel and outdoor unit
The stability and reliability to communicate between control panel.
In the present embodiment, indoor unit control panel further includes the second diode D10 and the 5th relay K5, referring to Fig. 2 institutes
Show, the anode of the anode connection voltage-stabiliser tube ZD4 of the second diode D10, the cathode of the second diode D10 connects the first zero terminal
N1, prevents electric current from pouring in down a chimney, and ensures the safety of component.The normally opened contact of 5th relay K5 is connected in parallel on the second diode D10 two
End, the first main control chip control the break-make of the current supply circuit of the coil of the 5th relay K5.
The break-make electricity condition of 5th relay K5 coils is identical with the first relay K1, i.e., in the normally opened of the first relay K1
During contact closure, the normally opened contact closure of the 5th relay K5, by the second diode D10 short circuits；In the normal of the first relay K1
When opening contact disconnection, the normally opened contact of the 5th relay K5 disconnects so that charge-discharge circuit accelerates the velocity of discharge, and it is electric to improve control
Road reliability of operation.
Filter capacitor C8 is connected between the cathode and the first zero terminal N1 of charging capacitor E4, to filter out interference, is kept away
Exempt from high frequency waves damage component, ensure electricity consumption reliability.
Another filter capacitor CY3 is connected between the first zero terminal N1 and the first communication terminal COMM1, it is dry to filter out
Disturb, avoid high frequency waves from damaging component, ensure electricity consumption reliability.
Indoor unit control panel further includes the 3rd diode D12, and the anode of the 3rd diode D12 connects the second photoelectrical coupler
The other end of the luminous end of IC6, the cathode of D12 connect the first communication terminal COMM1.When the voltage of the first communication terminal COMM1
When higher than hot voltage, D12 plays the role of cut-off, prevents electric current from pouring in down a chimney, avoid electric current pour in down a chimney damage photoelectrical coupler IC6 and
IC4, protects photoelectrical coupler IC6, IC4, improves the security of photoelectrical coupler IC6, IC4.
Protective resistance R22 is connected with the both ends of the luminous end of the second photoelectrical coupler IC6, to protect photoelectrical coupler.
When relay K1 coils disconnect, the electric energy in optocoupler order circuit is consumed.
In the present embodiment, first switch pipe N11 is NPN type triode or NMOS tube.When first switch pipe is NPN type three
During pole pipe, the base stage of NPN type triode connects the signal sending end of the first main control chip, emitter ground connection, collector connection the
The other end of the luminous end of one photoelectrical coupler IC4.When first switch pipe is NMOS tube, the first master of grid connection of NMOS tube
Control the signal sending end of chip, source electrode ground connection, the other end of the luminous end of the first photoelectrical coupler IC4 of drain electrode connection.
In the present embodiment, second switch pipe N5 is NPN type triode or NMOS tube.When second switch pipe is NPN type three
During pole pipe, the base stage of NPN type triode connects the signal sending end of the second main control chip, emitter ground connection, collector connection the
The other end of the luminous end of four photoelectrical coupler IC11.When second switch pipe is NMOS tube, the grid connection second of NMOS tube
The signal sending end of main control chip, source electrode ground connection, the other end of the luminous end of the 4th electric coupler IC11 of drain electrode connection.
NPN type triode or NMOS tube are selected, cost is low, dependable performance, cost-effective.
Based on the design of above-mentioned control circuit, the present embodiment also proposed a kind of air conditioner, including the control circuit.
By designing the control circuit in air conditioner, the stand-by power consumption of outdoor unit control panel is reduced, reduces sky
The energy consumption of device is adjusted, thereby reduces the use cost of air conditioner, improves the market competitiveness of air conditioner.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model,
It should also belong to the protection scope of the utility model.
Claims (10)
- A kind of 1. air conditioner control circuit, it is characterised in that：Including indoor unit control panel, outdoor unit control panel；The indoor unit First fire line terminal of control panel, the first zero terminal, the second fire line terminal of the first communication terminal and outdoor unit control panel, the Two zero terminals, the second communication terminal correspond to connection, and first fire line terminal, the first zero terminal correspond to the exterior fire of connection Line, zero curve；The indoor unit control panel includes the first power circuit, the first main control chip, the first photoelectrical coupler, the second photoelectric coupling Device, first switch pipe, the first relay, the second relay；First fire line terminal, the first zero terminal are electric with first respectively Two input terminals connection of source circuit, first power circuit are powered for each electricity consumption device of indoor unit control panel；Described One main control chip controls the current supply circuit of the break-make of the current supply circuit of the coil of the first relay and the coil of the second relay Break-make；The control terminal of the signal output part connection first switch pipe of first main control chip；The hair of first photoelectrical coupler One end connection DC power supply at light end, the other end are grounded by the switch ways of first switch pipe；First photoelectrical coupler One end of light-receiving end the first fire line terminal is connected by the normally opened contact of the first relay, first photoelectrical coupler by The other end at light end connects one end of the luminous end of the second photoelectrical coupler, the luminous end of second photoelectrical coupler it is another The first communication terminal of end connection；One end connection DC power supply of the light-receiving end of second photoelectrical coupler, the other end pass through limit Leakage resistance is grounded, and the other end connects the signal receiving end of the first main control chip by current-limiting resistance；The normally opened contact of second relay is connected between the first zero terminal and the first communication terminal；The outdoor unit control panel includes second source circuit, the second main control chip, the 3rd photoelectrical coupler, the 4th photoelectric coupling Device, second switch pipe, the 3rd relay, the 4th relay；One of the second fire line terminal connection second source circuit is defeated Entering end, second zero terminal connects another input terminal of second source circuit by the normally opened contact of the 3rd relay, The second source circuit is powered for each electricity consumption device of outdoor unit control panel；Second main control chip controls the 3rd relay Coil current supply circuit break-make and the 4th relay coil current supply circuit break-make；The movable contact of 4th relay connects the second communication terminal, the normally opened stationary contact connection the 4th of the 4th relay One end of the light-receiving end of photoelectrical coupler, the other end of the light-receiving end of the 4th photoelectrical coupler connect the 3rd photoelectrical coupler Luminous end one end, the normally opened contact that the other end of the luminous end of the 3rd photoelectrical coupler passes through the 3rd relay connects Second zero terminal；Another input terminal of the normally closed stationary contact connection second source circuit of 4th relay；The control terminal of the signal sending end connection second switch pipe of second main control chip, the hair of the 4th photoelectrical coupler The one end at light end connects DC power supply by current-limiting resistance, and the other end is grounded by the switch ways of second switch pipe；Described One end connection DC power supply of the light-receiving end of three photoelectrical couplers, the other end is grounded by current-limiting resistance, and the other end passes through Current-limiting resistance connects the signal receiving end of the second main control chip.
- 2. circuit according to claim 1, it is characterised in that：The indoor unit control panel further includes charge-discharge circuit, institute Stating charge-discharge circuit includes the first diode, voltage-stabiliser tube, charging capacitor；First Diode series are between the normally opened contact of the first relay and the light-receiving end of the first photoelectrical coupler；It is described The anode of voltage-stabiliser tube connects the first zero terminal, and the cathode of the voltage-stabiliser tube connects the cathode of the first diode；The charging electricity The cathode of appearance connects the cathode of the first diode, and the anode of the charging capacitor connects the first zero terminal.
- 3. circuit according to claim 2, it is characterised in that：The indoor unit control panel further includes the second diode and Five relays, the anode of the anode connection voltage-stabiliser tube of second diode, the cathode connection the 1st of second diode Line terminals；The normally opened contact of 5th relay is connected in parallel on the second diode both ends, and first main control chip controls the 5th relay The break-make of the current supply circuit of the coil of device.
- 4. circuit according to claim 2, it is characterised in that：The cathode of the charging capacitor and the first zero terminal it Between be connected with filter capacitor.
- 5. circuit according to claim 1, it is characterised in that：Between first zero terminal and the first communication terminal It is connected with another filter capacitor.
- 6. circuit according to claim 1, it is characterised in that：The indoor unit control panel further includes the 3rd diode, institute The other end of the luminous end of anode the second photoelectrical coupler of connection of the 3rd diode is stated, cathode connects the first communication terminal.
- 7. circuit according to claim 1, it is characterised in that：Connect at the both ends of the luminous end of second photoelectrical coupler It is connected to protective resistance.
- 8. circuit according to claim 1, it is characterised in that：The first switch pipe is NPN type triode or NMOS tube；When the first switch pipe is NPN type triode, the base stage of the NPN type triode connects the letter of the first main control chip Number transmitting terminal, emitter ground connection, collector connect the other end of the luminous end of the first photoelectrical coupler；When the first switch pipe is NMOS tube, the grid of the NMOS tube connects the signal sending end of the first main control chip, Source electrode is grounded, the other end of the luminous end of drain electrode the first photoelectrical coupler of connection.
- 9. circuit according to claim 1, it is characterised in that：The second switch pipe is NPN type triode or NMOS tube；When the second switch pipe is NPN type triode, the base stage of the NPN type triode connects the letter of the second main control chip Number transmitting terminal, emitter ground connection, collector connect the other end of the luminous end of the 4th photoelectrical coupler；When the second switch pipe is NMOS tube, the grid of the NMOS tube connects the signal sending end of the second main control chip, Source electrode is grounded, the other end of the luminous end of drain electrode the 4th electric coupler of connection.
- A kind of 10. air conditioner, it is characterised in that：Including control circuit as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720773682.9U CN207281508U (en) | 2017-06-29 | 2017-06-29 | A kind of air conditioner control circuit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720773682.9U CN207281508U (en) | 2017-06-29 | 2017-06-29 | A kind of air conditioner control circuit and air conditioner |
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| Publication Number | Publication Date |
|---|---|
| CN207281508U true CN207281508U (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720773682.9U Active CN207281508U (en) | 2017-06-29 | 2017-06-29 | A kind of air conditioner control circuit and air conditioner |
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| CN (1) | CN207281508U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764503A (en) * | 2019-01-15 | 2019-05-17 | 海信（广东）空调有限公司 | Outdoor power supply control circuit of air conditioner and air conditioner |
| CN112032981A (en) * | 2020-07-24 | 2020-12-04 | 广东积微科技有限公司 | Air conditioner indoor and outdoor unit communication circuit and air conditioner |
| CN117311293A (en) * | 2023-11-27 | 2023-12-29 | 深圳市凌壹科技有限公司 | Industrial main board based on remote management and control method thereof |
-
2017
- 2017-06-29 CN CN201720773682.9U patent/CN207281508U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109764503A (en) * | 2019-01-15 | 2019-05-17 | 海信（广东）空调有限公司 | Outdoor power supply control circuit of air conditioner and air conditioner |
| CN109764503B (en) * | 2019-01-15 | 2021-04-16 | 海信（广东）空调有限公司 | Outdoor power supply control circuit of air conditioner and air conditioner |
| US11971180B2 (en) | 2019-01-15 | 2024-04-30 | Hisense (Guangdong) Air Conditioner Co., Ltd. | Outdoor unit of air conditioner, and air conditioner |
| CN112032981A (en) * | 2020-07-24 | 2020-12-04 | 广东积微科技有限公司 | Air conditioner indoor and outdoor unit communication circuit and air conditioner |
| CN112032981B (en) * | 2020-07-24 | 2021-10-22 | 广东积微科技有限公司 | Air conditioner indoor and outdoor unit communication circuit and air conditioner |
| 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 |
| CN117311293A (en) * | 2023-11-27 | 2023-12-29 | 深圳市凌壹科技有限公司 | Industrial main board based on remote management and control method thereof |
| CN117311293B (en) * | 2023-11-27 | 2024-04-02 | 深圳市凌壹科技有限公司 | Industrial main board based on remote management and control method thereof |
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