CN203443031U - Low standby power consumption control circuit and air conditioner - Google Patents
Low standby power consumption control circuit and air conditioner Download PDFInfo
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Abstract
The utility model discloses a low standby power consumption control circuit and an air conditioner. The low standby power consumption control circuit is connected with a working load of the air conditioner. The circuit comprises a power supply module, a microcontroller and a load power supply control module. The load power supply control module is used for controlling the power supply module to supply power for the working load or not according to a control signal of the microcontroller. When the air conditioner is under normal operation, the microcontroller of the circuit controls the load power supply module to be powered on to control the power supply module to supply power for the working load, so that the working load is normally operated. When the air conditioner is in a standby state, the microcontroller controls the load power supply module to be powered off to cut off the access of the power supply module for supplying power for the working load, so that the working load stops working and the microcontroller is in a resting state. Thus, when the air conditioner is in a standby state, the working load consumes no power, the microcontroller is in a resting state, and standby power consumption of the air conditioner is reduced, so that the standby power consumption is ensured to be less than 0.1 W.
Description
Technical field
The utility model relates to power supply control technology field, relates in particular to a kind of low standby power loss control circuit and air-conditioner.
Background technology
Along with global climate warms day by day, energy-saving and emission-reduction become an important process, therefore daily-life related, and household electric appliances must be carried out upgrade design to existing household appliances, the power consumption of useless workload under holding state particularly, high efficiency, low-power consumption have become one of key factor that household appliances must consider on stream.Core component in household appliances---electronic controller, it is still in running order after the standby of household electrical appliances product introduction, produce power consumption, directly determined the stand-by power consumption of complete machine, the power consumption that therefore will reduce household appliances must reduce the stand-by power consumption of electronic controller.
Take air-conditioner as example, and civil power directly accesses indoor set and the off-premises station of air-conditioner, and indoor set and off-premises station rely on communicating circuit to contact.When air-conditioner is under holding state, many workloads such as indoor set and off-premises station still consume electric energy.For stand-by power consumption problem, existing air-conditioner is only that power circuit is carried out to low-power consumption processing, by linear power supply in the past, be replaced by the Switching Power Supply of low-power consumption, but the peripheral workload circuit of electronic controller is not optimized to design, therefore can only realize the stand-by power consumption of 1W, be difficult to reach the design of energy saving and environmental protection theory lower than 0.1W stand-by power consumption.
Utility model content
Main purpose of the present utility model is to propose a kind of low standby power loss control circuit and air-conditioner, is intended to reduce the stand-by power consumption of air-conditioner, realizes the stand-by power consumption lower than 0.1W.
In order to achieve the above object, the utility model proposes a kind of low standby power loss control circuit, this low standby power loss control circuit is connected with workload, comprises power module, microcontroller and the load power source control module of whether powering to described workload for control described power module according to the control signal of described microcontroller;
The input of described microcontroller and load power source control module is all connected with described power module, the control end of described load power source control module is connected with the load control end of described microcontroller, and the output of described load power source control module is connected with described workload.
Preferably, described load power source control module comprises fan power control module and off-premises station power control unit, and described workload comprises fan electromotor and off-premises station;
The input of described fan power control module is connected with described power module, and the control end of described fan power control module is connected with the air-blower control end of described microcontroller, and the output of described fan power control module is connected with described fan electromotor;
The input of off-premises station power control unit is connected with described power module, and the control end of off-premises station power control unit is connected with the off-premises station control end of described microcontroller, and the output of off-premises station power control unit is connected with described off-premises station.
Preferably, described fan power control module is AC blower fan power control unit, and described fan electromotor is AC blower fan;
The input of described AC blower fan power control unit is connected with described power module, the control end of described AC blower fan power control unit is connected with the air-blower control end of described microcontroller, and the output of described AC blower fan power control unit is connected with described AC blower fan.
Preferably, described AC blower fan power control unit comprises the first triode, the first photoelectrical coupler, the second photoelectrical coupler, the first resistance;
The base stage of described the first triode is connected with the air-blower control end of described microcontroller, and be connected with the 4th power output end of described power module via described the first resistance, the emitter stage of described the first triode is connected with the 4th power output end of described power module, the colelctor electrode of described the first triode is connected with the feeder ear of described AC blower fan, and with the anodic bonding of described the first photoelectrical coupler;
The minus earth of described the first photoelectrical coupler, the first input and output utmost point of described the first photoelectrical coupler is connected with the first zero passage detection end of described power module, and the second input and output utmost point of described the first photoelectrical coupler is connected with the first input and output utmost point of described the second photoelectrical coupler;
The second input and output utmost point of described the second photoelectrical coupler is connected with the second zero passage detection end of described power module, the colelctor electrode of described the second photoelectrical coupler is connected with the 4th power output end of described power module, and the emitter stage of described the second photoelectrical coupler is connected with the zero passage detection feedback end of described microcontroller.
Preferably, described AC blower fan power control unit also comprises the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity and a protection tube;
Described the second resistance is connected between the air-blower control end of described microcontroller and the base stage of described the first triode; Described the 3rd resistance is connected between the colelctor electrode of described the first triode and the anode of described the first photoelectrical coupler; Described the 4th resistance is connected between the first zero passage detection end of described power module and the first input and output utmost point of described the first photoelectrical coupler; One end of described the 5th resistance is connected with the second zero passage detection end of described power module, and the other end is connected with the first input and output utmost point of described the second photoelectrical coupler, and described the first electric capacity is in parallel with described the 5th resistance;
One end of described the 6th resistance is connected with the colelctor electrode of described the second photoelectrical coupler, and via described the 7th resistance eutral grounding, the other end of described the 6th resistance is connected with the zero passage detection feedback end of described microcontroller, and via described the second capacity earth;
Described the 8th one end of resistance and the feedback output end of described power module are connected; and be connected with the 4th power output end of described power module via described protection tube; and via described the 3rd capacity earth, described the 8th other end of resistance and the feedback end of described AC blower fan are connected.
Preferably, described fan power control module is DC fan power control unit, and described fan electromotor is DC fan;
The input of described DC fan power control unit is connected with described power module, the control end of described DC fan power control unit is connected with the air-blower control end of described microcontroller, and the output of described DC fan power control unit is connected with described DC fan.
Preferably, described DC fan power control unit comprises the 3rd photoelectrical coupler, the second triode, the 3rd triode, the 9th resistance and a voltage-stabiliser tube;
The base stage of described the second triode is connected with the air-blower control end of described microcontroller, the grounded emitter of described the second triode, and the colelctor electrode of described the second triode is connected with the negative electrode of described the 3rd photoelectrical coupler; The anode of described the 3rd photoelectrical coupler is connected with the 3rd power output end of described power module, the grounded emitter of described the 3rd photoelectrical coupler;
The base stage of described the 3rd triode is connected with the colelctor electrode of described the 3rd photoelectrical coupler, and be connected with the first power output end of described power module via described the 9th resistance, the emitter stage of described the 3rd triode is connected with the first power output end of described power module, and described the 3rd colelctor electrode of triode and the input pin of described voltage-stabiliser tube are connected; The grounding leg ground connection of described voltage-stabiliser tube, the output pin of described voltage-stabiliser tube is connected with the feeder ear of described DC fan.
Preferably, described DC fan power control unit also comprises the tenth resistance, the 11 resistance, the 12 resistance, the first electrochemical capacitor, the second electrochemical capacitor, the 4th electric capacity and the 5th electric capacity;
One end of described the tenth resistance is connected with the air-blower control end of described microcontroller, and the other end of described the tenth resistance is connected with the base stage of described the second triode, and via described the 11 resistance eutral grounding; Described the 12 resistance is connected between the 3rd power output end and the anode of described the 3rd photoelectrical coupler of described power module;
The positive pole of described the first electrochemical capacitor is connected with the first power output end of described power module, minus earth; One end of described the 4th electric capacity is connected with the colelctor electrode of described the 3rd triode, other end ground connection; The positive pole of described the second electrochemical capacitor is connected with the output pin of described voltage-stabiliser tube, minus earth; One end of described the 5th electric capacity is connected with the positive pole of described the second electrochemical capacitor, other end ground connection.
Preferably, described off-premises station power control unit comprises relay; The control end of described relay is connected with the off-premises station control end of described microcontroller, the feeder ear of described relay is connected with the 3rd power output end of described power module, the first contact of described relay is connected with the second ac input end of described power module, and the second contact of described relay is connected with the feeder ear of described off-premises station.
The utility model also proposes a kind of air-conditioner, comprise workload, also comprise low standby power loss control circuit, this low standby power loss control circuit is connected with workload, comprises power module, microcontroller and the load power source control module of whether powering to described workload for control described power module according to the control signal of described microcontroller;
The input of described microcontroller and load power source control module is connected all and described power module, the control end of described load power source control module is connected with the load control end of described microcontroller, and the output of described load power source control module is connected with described workload.
The low standby power loss control circuit the utility model proposes, when air-conditioner works, microcontroller output control signal control load energy supply control module is open-minded, and load power source control module is controlled power module and powered to workload, workload normal operation; When air-conditioner standby, microcontroller output control signal control load energy supply control module turn-offs, and load power source control module is cut off the electricity supply module to the path of workload power supply, and workload quits work, and after workload quits work, microcontroller enters resting state.Low standby power loss control circuit of the present utility model, when air-conditioner standby, the power supply of cut-out to workload, workload is quit work, there is no power consumption, and after workload quits work, microcontroller enters resting state, thereby reduced the stand-by power consumption of air-conditioner, realized the stand-by power consumption lower than 0.1W.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model low standby power loss control circuit preferred embodiment;
Fig. 2 is the theory diagram of the utility model low standby power loss control circuit one specific embodiment;
Fig. 3 is the theory diagram of another specific embodiment of the utility model low standby power loss control circuit;
Fig. 4 is the electrical block diagram of power module in the utility model low standby power loss control circuit;
Fig. 5 is the electrical block diagram of AC blower fan power control unit in the utility model low standby power loss control circuit;
Fig. 6 is the electrical block diagram of DC fan power control unit in the utility model low standby power loss control circuit;
Fig. 7 is the electrical block diagram of off-premises station power control unit in the utility model low standby power loss control circuit.
The realization of the purpose of this utility model, functional characteristics and advantage, in connection with embodiment, and is described further with reference to accompanying drawing.
The specific embodiment
Below in conjunction with Figure of description and specific embodiment, further illustrate the technical solution of the utility model.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model proposes a kind of low standby power loss control circuit.
With reference to Fig. 1, Fig. 1 is the theory diagram of the utility model low standby power loss control circuit 10 preferred embodiments.
In the utility model preferred embodiment, low standby power loss control circuit 10 is connected with workload 20, this low standby power loss control circuit 10 comprises power module 11, microcontroller 12 and load power source control module 13, and whether this load power source control module 13 is for controlling power module 11 to workload 20 power supplies according to the control signal of microcontroller 12.In the present embodiment, workload 20 is in fan electromotor, off-premises station, swing motor, sensor, display board and air-conditioner, other need the load of power module 11 power supplies; Load power source control module 13 is corresponding with various workloads 20, and various workloads 20 is carried out to the various power control units of power supply control.
Wherein, the input of microcontroller 12 and load power source control module 13 is all connected with power module 11, the control end of load power source control module 13 is connected with the load control end of microcontroller 12, and the output of load power source control module 13 is connected with workload 20.
In the present embodiment, in the situation that air-conditioner works, microcontroller 12 outputs control signals to load power source control module 13, and control load energy supply control module 13 is open-minded, load power source control module 13 is controlled power module 11 to workload 20 power supplies, workload 20 normal operations; The in the situation that of air-conditioner standby, microcontroller 12 outputs control signals to load power source control module 13, control load energy supply control module 13 turn-offs, load power source control module 13 module 11 paths to workload 20 power supplies of cutting off the electricity supply, workload 20 quits work, and after workload 20 quits work, microcontroller 12 enters resting state.
With respect to prior art, low standby power loss control circuit 10 of the present utility model, when air-conditioner standby, the power supply of cut-out to workload 20, quits work workload 20, there is no power consumption, and after workload 20 quits work, microcontroller 12 enters resting state, thereby has reduced the stand-by power consumption of air-conditioner, has realized the stand-by power consumption of air-conditioner lower than 0.1W.
With reference to Fig. 2, Fig. 2 is the theory diagram of the utility model low standby power loss control circuit 10 1 specific embodiments.
In a specific embodiment of the present utility model, load power source control module 13 comprises fan power control module 131 and off-premises station power control unit 132, and workload 20 comprises fan electromotor 21 and off-premises station 22.
The input of fan power control module 131 is connected with power module 11, and the control end of fan power control module 131 is connected with the air-blower control end of microcontroller 12, and the output of fan power control module 131 is connected with fan electromotor 21.
The input of off-premises station power control unit 132 is connected with power module 11, and the control end of off-premises station power control unit 132 is connected with the off-premises station control end of microcontroller 12, and the output of off-premises station power control unit 132 is connected with off-premises station 22.
Particularly, fan power control module 131 is AC blower fan power control unit 1311, and fan electromotor 21 is AC blower fan 211.
The input of AC blower fan power control unit 1311 is connected with power module 11, the control end of AC blower fan power control unit 1311 is connected with the air-blower control end of microcontroller 12, and the output of AC blower fan power control unit 1311 is connected with AC blower fan 211.
The present embodiment, when air-conditioner standby, cuts off the power supply to AC blower fan 211, off-premises station 22, and AC blower fan 211, off-premises station 22 quit work, thereby have reduced the stand-by power consumption of air-conditioner.
With reference to Fig. 3, Fig. 3 is the theory diagram of the utility model low standby power loss control circuit 10 another specific embodiments.
In another specific embodiment of the present utility model, load power source control module 13 comprises fan power control module 131 and off-premises station power control unit 132, and workload 20 comprises fan electromotor 21 and off-premises station 22.
The input of fan power control module 131 is connected with power module 11, and the control end of fan power control module 131 is connected with the air-blower control end of microcontroller 12, and the output of fan power control module 131 is connected with fan electromotor 21.
The input of off-premises station power control unit 132 is connected with power module 11, and the control end of off-premises station power control unit 132 is connected with the off-premises station control end of microcontroller 12, and the output of off-premises station power control unit 132 is connected with off-premises station 22.
Particularly, fan power control module 131 is DC fan power control unit 1312, and fan electromotor 21 is DC fan 212.
The input of DC fan power control unit 1312 is connected with power module 11, the control end of DC fan power control unit 1312 is connected with the air-blower control end of microcontroller 12, and the output of DC fan power control unit 1312 is connected with DC fan 212.
The present embodiment, when air-conditioner standby, cuts off the power supply to DC fan 212, off-premises station 22, and DC fan 212, off-premises station 22 quit work, thereby have reduced the stand-by power consumption of air-conditioner.
Referring to figs. 1 through Fig. 7, wherein Fig. 4 is the electrical block diagram of power module 11 in the utility model low standby power loss control circuit 10 in the lump; Fig. 5 is the electrical block diagram of AC blower fan power control unit 1311 in the utility model low standby power loss control circuit 10; Fig. 6 is the electrical block diagram of DC fan power control unit 1312 in the utility model low standby power loss control circuit 10; Fig. 7 is the electrical block diagram of off-premises station power control unit 132 in the utility model low standby power loss control circuit 10.
As shown in Figure 4, power module 11 comprises the first ac input end N_IN, the second ac input end L_IN, the first zero passage detection end ZERON, the second zero passage detection end ZEROL, feedback output end FB, switching power source chip U1, DC-DC conversion chip U2, the first power output end VCC1, second source output VCC2, the 3rd power output end VCC3 and the 4th power output end VCC4.In the present embodiment, the voltage of the first power output end VCC1 output is that the voltage of 17V, second source output VCC2 output is that the voltage that 11V, the 3rd power output end VCC3 export is that 11V and electric current are that the voltage that 1.2A and the 4th power output end VCC4 export is 5V; Switching power source chip U1, DC-DC conversion chip U2 all adopt the integrated chip of low-power consumption, thereby when power module 11 normal operations or standby, all can reduce the power consumption of power module 11.In addition, in power module 11, by the 6th capacitor C 6, the 13 resistance R 13 and diode D2 form RCD absorption circuit, by sampling resistor (the 14 resistance R 14, the 15 resistance R 15 and the 16 resistance R 16) form and export backfeed loop, because this RCD absorption circuit is all lossy with output backfeed loop, therefore by reducing the capacitance of the 6th capacitor C 6 in RCD absorption circuit, to reduce the absorption loss of RCD absorption circuit, increase the 14 resistance R 14 in output backfeed loop, the resistance of the 15 resistance R 15 and the 16 resistance R 16, to reduce the loss of output backfeed loop, reduced the power consumption of power module 11, and then can reduce the power consumption of air-conditioner.
As shown in Figure 5, AC blower fan power control unit 1311 comprises the first triode Q1, the first photoelectrical coupler IC1, the second photoelectrical coupler IC2, the first resistance R 1.
The base stage of the first triode Q1 is connected with the air-blower control end ZERO_KG of microcontroller 12, and be connected with the 4th power output end VCC4 of power module 11 via the first resistance R 1, the emitter stage of the first triode Q1 is connected with the 4th power output end VCC4 of power module 11, the colelctor electrode of the first triode Q1 is connected with the feeder ear of AC blower fan 211, and with the anodic bonding of the first photoelectrical coupler IC1.
The minus earth of the first photoelectrical coupler IC1, the first input and output utmost point of the first photoelectrical coupler IC1 is connected with the first zero passage detection end ZERON of power module 11, and the second input and output utmost point of the first photoelectrical coupler IC1 is connected with the first input and output utmost point of the second photoelectrical coupler IC2.
The second input and output utmost point of the second photoelectrical coupler IC2 is connected with the second zero passage detection end ZEROL of power module 11, the colelctor electrode of the second photoelectrical coupler IC2 is connected with the 4th power output end VCC4 of power module 11, and the emitter stage of the second photoelectrical coupler IC2 is connected with the zero passage detection feedback end ZERO_FB of microcontroller 12.
AC blower fan power control unit 1311 also comprises the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3 and protection tube D1.
The second resistance R 2 is connected between the air-blower control end ZERO_KG of microcontroller 12 and the base stage of the first triode Q1; The 3rd resistance R 3 is connected between the colelctor electrode of the first triode Q1 and the anode of the first photoelectrical coupler IC1; The 4th resistance R 4 is connected between the first zero passage detection end ZERON of power module 11 and the first input and output utmost point of the first photoelectrical coupler IC1; One end of the 5th resistance R 5 is connected with the second zero passage detection end ZEROL of power module 11, and the other end is connected with the first input and output utmost point of the second photoelectrical coupler IC2, and the first capacitor C 1 is in parallel with the 5th resistance R 5.
One end of the 6th resistance R 6 is connected with the colelctor electrode of the second photoelectrical coupler IC2, and via the 7th resistance R 7 ground connection, the other end of the 6th resistance R 6 is connected with the zero passage detection feedback end ZERO_FB of microcontroller 12, and via the second capacitor C 2 ground connection.
One end of the 8th resistance R 8 is connected with the feedback output end FB of power module 11; and be connected with the 4th power output end VCC4 of power module 11 via protection tube D1; and via the 3rd capacitor C 3 ground connection, the other end of the 8th resistance R 8 is connected with the feedback end of AC blower fan 211.
In the situation that air-conditioner works, microcontroller 12 is by the control signal of its air-blower control end ZERO_KG output low level, this low level control signal exports the base stage of the first triode Q1 to, the first triode Q1 conducting, thereby the first photoelectrical coupler IC1 and the second photoelectrical coupler IC2 conducting, the first zero passage detection end ZERON of power module 11 and the second zero passage detection end ZEROL are carried out to zero passage detection, and zero passage detection result is exported to the zero passage detection feedback end ZERO_FB of microcontroller 12.Simultaneously due to the first triode Q1 conducting, the feeder ear from the 5V Voltage-output of the 4th power output end VCC4 output of power module 11 to AC blower fan 211, makes AC blower fan 211 normal operations.
Under air-conditioner standby, microcontroller 12 becomes high level by the control signal of its air-blower control end ZERO_KG output, the control signal of this high level exports the base stage of the first triode Q1 to, the first triode Q1 cut-off, thereby the first photoelectrical coupler IC1 and the second photoelectrical coupler IC2 also end, no longer the first zero passage detection end ZERON of power module 11 and the second zero passage detection end ZEROL are carried out to zero passage detection work.Due to the first triode Q1 cut-off, the module of cutting off the electricity supply 11 is given the path of AC blower fan 211 power supplies simultaneously, and AC blower fan 211 quits work, and does not consume electric energy, thereby reduces the stand-by power consumption of air-conditioner.
As shown in Figure 6, DC fan power control unit 1312 comprises the 3rd photoelectrical coupler IC3, the second triode Q2, the 3rd triode Q3, the 9th resistance R 9 and voltage-stabiliser tube U3.
The base stage of the second triode Q2 is connected with the air-blower control end ZERO_KG of microcontroller 12, the grounded emitter of the second triode Q2, and the colelctor electrode of the second triode Q2 is connected with the negative electrode of the 3rd photoelectrical coupler IC3; The anode of the 3rd photoelectrical coupler IC3 is connected with the 3rd power output end VCC3 of power module 11, the grounded emitter of the 3rd photoelectrical coupler IC3.
The base stage of the 3rd triode Q3 is connected with the colelctor electrode of the 3rd photoelectrical coupler IC3, and be connected with the first power output end VCC1 of power module 11 via the 9th resistance R 9, the emitter stage of the 3rd triode Q3 is connected with the first power output end VCC1 of power module 11, and the colelctor electrode of the 3rd triode Q3 is connected with the input pin VIN of voltage-stabiliser tube U3; The grounding leg GND ground connection of voltage-stabiliser tube U3, the output pin VOUT of voltage-stabiliser tube U3 is connected with the feeder ear of DC fan 212.
DC fan power control unit 1312 also comprises the tenth resistance R the 10, the 11 resistance R the 11, the 12 resistance R 12, the first electrochemical capacitor E1, the second electrochemical capacitor E2, the 4th capacitor C 4 and the 5th capacitor C 5.
One end of the tenth resistance R 10 is connected with the air-blower control end ZERO_KG of microcontroller 12, and the other end of the tenth resistance R 10 is connected with the base stage of the second triode Q2, and via the 11 resistance R 11 ground connection; The 12 resistance R 12 is connected between the 3rd power output end VCC3 and the anode of the 3rd photoelectrical coupler IC3 of power module 11.
The positive pole of the first electrochemical capacitor E1 is connected with the first power output end VCC1 of power module 11, the minus earth of the first electrochemical capacitor E1; One end of the 4th capacitor C 4 is connected with the colelctor electrode of the 3rd triode Q3, the other end ground connection of the 4th capacitor C 4; The positive pole of the second electrochemical capacitor E2 is connected with the output pin VOUT of voltage-stabiliser tube U3, the minus earth of the second electrochemical capacitor E2; One end of the 5th capacitor C 5 is connected with the positive pole of the second electrochemical capacitor E2, the other end ground connection of the 5th capacitor C 5.
In the situation that air-conditioner works, microcontroller 12 is by the control signal of its air-blower control end ZERO_KG output high level, the control signal of this high level exports the base stage of the second triode Q2 to, the second triode Q2 conducting, thereby the 3rd photoelectrical coupler IC3 conducting, the base stage of the 3rd triode Q3 is dragged down to the 3rd also conducting of triode Q3.Due to the 3rd triode Q3 conducting, input pin VIN from the 17V Voltage-output of the first power output end VCC1 output of power module 11 to voltage-stabiliser tube U3, after the voltage stabilizing of voltage-stabiliser tube U3 is processed, from voltage-stabiliser tube U3, export the voltage of 15V to the feeder ear of DC fan 212, make DC fan 212 normal operations.
Under air-conditioner standby, microcontroller 12 becomes low level by the control signal of its air-blower control end ZERO_KG output, this low level control signal exports the base stage of the second triode Q2 to, the second triode Q2 cut-off, thereby the 3rd photoelectrical coupler IC3 cut-off, from the base stage of 17V Voltage-output to the three triode Q3 of the first power output end VCC1 output of power module 11, the 3rd triode Q3 cut-off.Due to the first triode Q1 cut-off, the module of cutting off the electricity supply 11 is given the path of DC fan 212 power supplies simultaneously, and DC fan 212 quits work, and does not consume electric energy, thereby reduces the stand-by power consumption of air-conditioner.
As shown in Figure 7, off-premises station power control unit 132 comprises relay K 1; The control end of relay K 1 is connected with the off-premises station control end PWR_OUT of microcontroller 12, the feeder ear of relay K 1 is connected with the 3rd power output end VCC3 of power module 11, the first contact of relay K 1 is connected with the second ac input end L_IN of power module 11, and the second contact of relay K 1 is connected with the feeder ear of off-premises station 22.
In the situation that air-conditioner works, microcontroller 12 is by its off-premises station control end PWR_OUT control relay K1 adhesive, from the alternating current of the first ac input end N_IN of power module 11 and the second ac input end L_IN input, be input to the feeder ear of off-premises station 22, make off-premises station 22 normal operations.
Under air-conditioner standby, microcontroller 12 disconnects by its off-premises station control end PWR_OUT control relay K1, from the first ac input end N_IN of power module 11 and the alternating current of the second ac input end L_IN input, can not give off-premises station 22 power supplies, off-premises station 22 is quit work, now there is no stand-by power consumption.
The utility model low standby power loss control circuit 10 is by processing the low-power consumption of power module 11, load power source control module 13, simultaneously, after microprocessor 12 control load energy supply control modules 13 cut off the power supply of workload 20, also each port of microcontroller 12 is carried out to low-power consumption processing, for example the clock of microcontroller 12 and FPDP are set to high level or high-impedance state, make microcontroller 12 no longer read clock signal and data-signal; The power port of microcontroller 12 is set to high level, and the grounding ports of microcontroller 12 is set to low level, and microcontroller 12 enters resting state, no longer carries out the work such as data communication, data acquisition and processing, peripheral circuit control.Through verification experimental verification, after the low-power consumption of the utility model low standby power loss control circuit 10 is processed, can realize the stand-by power consumption of air-conditioner lower than 0.1W.
The utility model also proposes a kind of air-conditioner, this air-conditioner comprises workload 20 and low standby power loss control circuit 10, the structure of this low standby power loss control circuit 10, operation principle and the beneficial effect bringing all can, with reference to above-described embodiment, repeat no more herein.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a low standby power loss control circuit, be connected with workload, it is characterized in that, comprise power module, microcontroller and the load power source control module of whether powering to described workload for control described power module according to the control signal of described microcontroller;
The input of described microcontroller and load power source control module is all connected with described power module, the control end of described load power source control module is connected with the load control end of described microcontroller, and the output of described load power source control module is connected with described workload.
2. low standby power loss control circuit as claimed in claim 1, is characterized in that, described load power source control module comprises fan power control module and off-premises station power control unit, and described workload comprises fan electromotor and off-premises station;
The input of described fan power control module is connected with described power module, and the control end of described fan power control module is connected with the air-blower control end of described microcontroller, and the output of described fan power control module is connected with described fan electromotor;
The input of off-premises station power control unit is connected with described power module, and the control end of off-premises station power control unit is connected with the off-premises station control end of described microcontroller, and the output of off-premises station power control unit is connected with described off-premises station.
3. low standby power loss control circuit as claimed in claim 2, is characterized in that, described fan power control module is AC blower fan power control unit, and described fan electromotor is AC blower fan;
The input of described AC blower fan power control unit is connected with described power module, the control end of described AC blower fan power control unit is connected with the air-blower control end of described microcontroller, and the output of described AC blower fan power control unit is connected with described AC blower fan.
4. low standby power loss control circuit as claimed in claim 3, is characterized in that, described AC blower fan power control unit comprises the first triode, the first photoelectrical coupler, the second photoelectrical coupler, the first resistance;
The base stage of described the first triode is connected with the air-blower control end of described microcontroller, and be connected with the 4th power output end of described power module via described the first resistance, the emitter stage of described the first triode is connected with the 4th power output end of described power module, the colelctor electrode of described the first triode is connected with the feeder ear of described AC blower fan, and with the anodic bonding of described the first photoelectrical coupler;
The minus earth of described the first photoelectrical coupler, the first input and output utmost point of described the first photoelectrical coupler is connected with the first zero passage detection end of described power module, and the second input and output utmost point of described the first photoelectrical coupler is connected with the first input and output utmost point of described the second photoelectrical coupler;
The second input and output utmost point of described the second photoelectrical coupler is connected with the second zero passage detection end of described power module, the colelctor electrode of described the second photoelectrical coupler is connected with the 4th power output end of described power module, and the emitter stage of described the second photoelectrical coupler is connected with the zero passage detection feedback end of described microcontroller.
5. low standby power loss control circuit as claimed in claim 4, it is characterized in that, described AC blower fan power control unit also comprises the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity and a protection tube;
Described the second resistance is connected between the air-blower control end of described microcontroller and the base stage of described the first triode; Described the 3rd resistance is connected between the colelctor electrode of described the first triode and the anode of described the first photoelectrical coupler; Described the 4th resistance is connected between the first zero passage detection end of described power module and the first input and output utmost point of described the first photoelectrical coupler; One end of described the 5th resistance is connected with the second zero passage detection end of described power module, and the other end is connected with the first input and output utmost point of described the second photoelectrical coupler, and described the first electric capacity is in parallel with described the 5th resistance;
One end of described the 6th resistance is connected with the colelctor electrode of described the second photoelectrical coupler, and via described the 7th resistance eutral grounding, the other end of described the 6th resistance is connected with the zero passage detection feedback end of described microcontroller, and via described the second capacity earth;
Described the 8th one end of resistance and the feedback output end of described power module are connected; and be connected with the 4th power output end of described power module via described protection tube; and via described the 3rd capacity earth, described the 8th other end of resistance and the feedback end of described AC blower fan are connected.
6. low standby power loss control circuit as claimed in claim 2, is characterized in that, described fan power control module is DC fan power control unit, and described fan electromotor is DC fan;
The input of described DC fan power control unit is connected with described power module, the control end of described DC fan power control unit is connected with the air-blower control end of described microcontroller, and the output of described DC fan power control unit is connected with described DC fan.
7. low standby power loss control circuit as claimed in claim 6, is characterized in that, described DC fan power control unit comprises the 3rd photoelectrical coupler, the second triode, the 3rd triode, the 9th resistance and a voltage-stabiliser tube;
The base stage of described the second triode is connected with the air-blower control end of described microcontroller, the grounded emitter of described the second triode, and the colelctor electrode of described the second triode is connected with the negative electrode of described the 3rd photoelectrical coupler; The anode of described the 3rd photoelectrical coupler is connected with the 3rd power output end of described power module, the grounded emitter of described the 3rd photoelectrical coupler;
The base stage of described the 3rd triode is connected with the colelctor electrode of described the 3rd photoelectrical coupler, and be connected with the first power output end of described power module via described the 9th resistance, the emitter stage of described the 3rd triode is connected with the first power output end of described power module, and described the 3rd colelctor electrode of triode and the input pin of described voltage-stabiliser tube are connected; The grounding leg ground connection of described voltage-stabiliser tube, the output pin of described voltage-stabiliser tube is connected with the feeder ear of described DC fan.
8. low standby power loss control circuit as claimed in claim 7, it is characterized in that, described DC fan power control unit also comprises the tenth resistance, the 11 resistance, the 12 resistance, the first electrochemical capacitor, the second electrochemical capacitor, the 4th electric capacity and the 5th electric capacity;
One end of described the tenth resistance is connected with the air-blower control end of described microcontroller, and the other end of described the tenth resistance is connected with the base stage of described the second triode, and via described the 11 resistance eutral grounding; Described the 12 resistance is connected between the 3rd power output end and the anode of described the 3rd photoelectrical coupler of described power module;
The positive pole of described the first electrochemical capacitor is connected with the first power output end of described power module, minus earth; One end of described the 4th electric capacity is connected with the colelctor electrode of described the 3rd triode, other end ground connection; The positive pole of described the second electrochemical capacitor is connected with the output pin of described voltage-stabiliser tube, minus earth; One end of described the 5th electric capacity is connected with the positive pole of described the second electrochemical capacitor, other end ground connection.
9. low standby power loss control circuit as claimed in claim 2, is characterized in that, described off-premises station power control unit comprises relay; The control end of described relay is connected with the off-premises station control end of described microcontroller, the feeder ear of described relay is connected with the 3rd power output end of described power module, the first contact of described relay is connected with the second ac input end of described power module, and the second contact of described relay is connected with the feeder ear of described off-premises station.
10. an air-conditioner, comprises workload, it is characterized in that, also comprises the low standby power loss control circuit described in any one in claim 1 to 9.
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| CN201320493827.1U CN203443031U (en) | 2013-08-13 | 2013-08-13 | Low standby power consumption control circuit and air conditioner |
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| CN201320493827.1U CN203443031U (en) | 2013-08-13 | 2013-08-13 | Low standby power consumption control circuit and air conditioner |
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| CN201320493827.1U Expired - Fee Related CN203443031U (en) | 2013-08-13 | 2013-08-13 | Low standby power consumption control circuit and air conditioner |
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