The utility model content
The technical problems to be solved in the utility model provides a kind of air conditioner intelligent control system of low standby power loss, can make air-conditioning consume very little electric energy when holding state.
The utility model embodiment provides a kind of air conditioner intelligent control system of low standby power loss, when being applied to the air-conditioner standby state, comprising: temp, sensor of outdoor unit, indoor machine temperature sensor, master controller and Switching Power Supply;
Described temp, sensor of outdoor unit for detection of the first temperature of off-premises station, sends to described master controller with described the first temperature;
Described indoor machine temperature sensor for detection of the second temperature of indoor set, sends to described master controller with described the second temperature;
Described master controller be used for to judge that the first temperature is higher than the first design temperature, and the second temperature is when being higher than the second design temperature, and being used for stopping is the off-premises station power supply, and the gauge tap power supply stops out-put supply; Described master controller is its power supply by electric capacity.
Preferably, described Switching Power Supply is that described electric capacity charges when air-conditioning works.
Preferably, also comprise AD converter;
The first temperature and signal corresponding to the second temperature that described temp, sensor of outdoor unit and indoor machine temperature sensor are measured all are analog voltage signals, described analog voltage signal sends to described AD converter, described AD converter sends to described master controller after described analog voltage signal is converted to digital voltage signal.
Preferably, also comprise the first relay and the second relay;
Described master controller is used for stopping to be the off-premises station power supply, and concrete by sending the control voltage signal to described the first relay, first actuating of relay is to close as the power supply of off-premises station power supply;
The stepper motor that described master controller is used for stopping as indoor set is powered, and concrete by sending the control voltage signal to described the second relay, the second cut-off is the power supply that stepper motor is powered.
Preferably, also comprise optocoupler; Described Switching Power Supply comprises power management chip;
Described main controller controls Switching Power Supply stops out-put supply, and concrete the output voltage of the power management chip in the gauge tap power supply is zero by the described optocoupler conducting of control, and power management chip enters low power mode of operation.
Preferably,
When the voltage that described master controller detects described electric capacity is lower than the operating voltage of master controller, controls described optocoupler and close, opening described Switching Power Supply is that described electric capacity charges.
Preferably,
Described the first design temperature is: 15 ℃-20 ℃;
Described the second design temperature is: 10 ℃-15 ℃.
Preferably, the out-put supply of described Switching Power Supply is the stepper motor power supply in the indoor set.
Preferably, the out-put supply of described Switching Power Supply is the display floater power supply of indoor set.
Compared with prior art, the utlity model has following advantage:
The air conditioner intelligent control system of the low standby power loss that the utility model provides, when air-conditioning is in holding state, indoor temperature and outdoor temperature are detected, when indoor temperature and outdoor temperature all reach design temperature, the power supply of main controller controls off-premises station is stopped power supply, and the gauge tap power supply stops to be the power supply of the stepper motor in the indoor set simultaneously.The power supply of master controller is provided by electric capacity.When air-conditioner standby, the power supply of the Switching Power Supply consumption on the indoor set can be ignored like this, and master controller enters low-power consumption mode.At this moment, consumed power master controller and remote controller receiving system only arranged, the power that whole air-conditioning consumes is very low, can greatly reduce the power consumption for the treatment of air conditioner like this.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in detail.
Referring to Fig. 1, this figure is air conditioner intelligent control system embodiment one schematic diagram of the low standby power loss that provides of the utility model.
The air conditioner intelligent control system of the low standby power loss that the utility model provides when being applied to the air-conditioner standby state, comprising: temp, sensor of outdoor unit 100, indoor machine temperature sensor 200, master controller 300 and Switching Power Supply 400;
Need to prove, when the user does not need to use air-conditioning, close air-conditioning when making air-conditioning enter holding state, use this control system.
Described temp, sensor of outdoor unit 100 for detection of the first outdoor temperature T 1, sends to described master controller 300 with described the first temperature T 1;
Described indoor machine temperature sensor 200 for detection of the second indoor temperature T 2, sends to described master controller 300 with described the second temperature T 2;
Described master controller 300 be used for to judge that the first temperature T 1 is higher than the first design temperature T1a, and the second temperature T 2 be used for stopping the power supply for off-premises station A, and gauge tap power supply 400 stops out-put supply when being higher than the second design temperature T2a; Described master controller 300 is its power supply by electric capacity.
Need to prove that the out-put supply of described Switching Power Supply 400 is that stepper motor and the display floater in the indoor set powered.
With indoor temperature and outdoor temperature as the Rule of judgment of whether powering.
The air conditioner intelligent control system of the low standby power loss that the utility model provides, when air-conditioning is in holding state, indoor temperature and outdoor temperature are detected, when indoor temperature and outdoor temperature all reach design temperature, the power supply of master controller 300 control off-premises stations is stopped power supply, and the gauge tap power supply stops to be the power supply of the stepper motor in the indoor set simultaneously.The power supply of master controller is provided by electric capacity.When air-conditioner standby, the power supply of the Switching Power Supply consumption on the indoor set can be ignored like this, and master controller enters low-power consumption mode.At this moment, consumed power master controller and remote controller receiving system only arranged, the power that whole air-conditioning consumes is very low, can greatly reduce the power consumption for the treatment of air conditioner like this.
Referring to Fig. 2, this figure is air conditioner intelligent control system embodiment two schematic diagrames of the low standby power loss that provides of the utility model.
The air conditioner intelligent control system of the low standby power loss that present embodiment provides, described Switching Power Supply 400 are that described capacitor C is charged when air-conditioning works.
The control system that present embodiment provides also comprises AD converter 500;
The first temperature and signal corresponding to the second temperature that described temp, sensor of outdoor unit 100 and indoor machine temperature sensor 200 are measured all are analog voltage signals, described analog voltage signal sends to described AD converter 500, described AD converter 500 sends to described master controller 300 after described analog voltage signal is converted to digital voltage signal.
The control system that present embodiment provides also comprises the first relay K 1 and the second relay K 2;
Described master controller 300 is used for stopping for off-premises station A powers, and the concrete transmission control voltage signal that passes through moves to close the power supply of powering into off-premises station A to described the first relay K 1, the first relay K 1;
The stepper motor that described master controller 300 is used for stopping as indoor set B is powered, and the concrete transmission control voltage signal that passes through moves to close the power supply of powering into stepper motor to described the second relay K 2, the second relay K 2.
In order to make those skilled in the art can understand better and implement the technical scheme that the utility model provides, introduce in detail below in conjunction with the physical circuit figure of Switching Power Supply.
Referring to Fig. 3, this figure is the switching power circuit figure for the air-conditioning power supply that the utility model provides.
Wherein, when the power management chip in the Switching Power Supply need to work, need its VDD2 pin to connect high level.
Control system also comprises optocoupler PC2 in the present embodiment; Described Switching Power Supply comprises power management chip;
Described main controller controls Switching Power Supply stops out-put supply, and concrete the output voltage of the power management chip in the gauge tap power supply is zero by the described optocoupler PC2 of control conducting, and power management chip enters low power mode of operation.
Need to prove, when the output voltage of power management chip is zero, refers to the VDD1 of power management chip among Fig. 3 and the output of VCC and be zero.But for power management chip can be worked, must guarantee the voltage of VDD2, condition is VIN 〉=VDD2, can keep the voltage of VDD2.
At this moment, the total current of whole Switching Power Supply is I
VIN+ I
VDD2, be about 23 μ A.
When the voltage that described master controller detects described electric capacity is lower than the operating voltage of master controller, controls described optocoupler PC2 and close, opening described Switching Power Supply is that described electric capacity charges.
Need to prove that the appearance value of this electric capacity can adopt 5 farads.
Referring to Fig. 4, this figure is that the electric capacity that utilizes that the utility model provides supplies electrical schematic for MCU.
During the air-conditioning normal operation, Switching Power Supply is the C1 charging by the resistance R 1 of connecting with capacitor C 1, and the VCC among the figure is the power supply of the power management chip output in the Switching Power Supply.
During air-conditioner standby, be that master controller MCU powers by C1.
Described master controller stops to stop when powering for the stepper motor in the indoor set display floater power supply for indoor set.
Need to prove that what preferentially select is that the first design temperature is described in the above embodiment: 15 ℃-20 ℃, for example be 15 ℃; Described the second design temperature is: 10 ℃-15 ℃, for example be 10 ℃.
Need to prove that if the power supply of air-conditioning work corresponding to the control system that above embodiment provides is 220V/50Hz, during air-conditioner standby, the power of consumption is approximately 6mW, has reduced much with respect to 3W in the prior art so so.
The above only is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Although the utility model discloses as above with preferred embodiment, yet is not to limit the utility model.Any those of ordinary skill in the art, do not breaking away from the technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model according to any simple modification, equivalent variations and the modification that technical spirit of the present utility model is done above embodiment, all still belongs in the scope of technical solutions of the utility model protection.