Disclosure of Invention
The application provides an air conditioner control circuit, an air conditioner control method, an air conditioner control system and air conditioner control equipment, which are used for controlling the output of an external machine switching power supply of an air conditioner through a power supply control module, realizing low-power standby and solving the problem that the external-dragging internal power supply mode of the existing air conditioner cannot realize low-power standby.
In a first aspect, an embodiment of the present application provides an air conditioner control circuit, including: the air conditioner comprises an external machine main control module, a remote control receiving module, a standby communication module and a power supply control module of the air conditioner;
the standby communication module is used for outputting a target signal to the external machine main control module according to the output signal of the remote control receiving module;
the external machine main control module is used for controlling the working state of the standby communication module according to the target signal and outputting a power control signal to the power control module;
The power supply control module is used for controlling a power supply signal output by an external machine switch power supply of the air conditioner according to the power supply control signal.
Optionally, the standby communication module includes: the working state comprises a starting-up disconnection state which is a state corresponding to the disconnection of the first normally closed switch;
The first end of the first normally closed switch is electrically connected with the output end of the remote control receiving module, the second end of the first normally closed switch is electrically connected with the first end of the optocoupler sub-module, and the control end of the first normally closed switch is electrically connected with the external machine main control module;
the first normally closed switch is used for transmitting the output signal of the remote control receiving module to the optocoupler sub-module;
The second end of the optical coupler sub-module is electrically connected with the external machine main control module, and the optical coupler sub-module is used for generating the target signal based on the output signal of the remote control receiving module and outputting the target signal to the external machine main control module;
The external machine main control module is specifically configured to control the first normally closed switch to be turned off according to the start-up signal when the target signal is the start-up signal.
Optionally, the air conditioner control circuit further includes: the main control module of the inner machine of the air conditioner;
the internal machine main control module is connected with the external machine main control module through a communication bus, and the communication bus comprises a first communication bus;
The optocoupler sub-module comprises an optocoupler and a first resistor;
The first end of the remote control receiving module is electrically connected with the first end of the main control module of the internal machine, and the second end of the remote control receiving module is electrically connected with the first end of the first normally closed switch and the first power end of the main control module of the external machine through the first communication bus;
The first end of the photoelectric coupler is electrically connected with the second end of the first normally closed switch, the second end of the photoelectric coupler and the fourth end of the photoelectric coupler are electrically connected with the signal reference end of the air conditioner, and the third end of the photoelectric coupler is electrically connected with the target signal input end of the external machine main control module;
The first end of the first resistor is electrically connected with the third end of the photoelectric coupler, and the second end of the first resistor is electrically connected with the second power supply end of the external machine main control module;
The photoelectric coupler is specifically configured to output the target signal to the external host control module according to the remote control signal and a power signal provided by the second power supply terminal.
Optionally, the communication bus further includes a second communication bus, a third communication bus and a fourth communication bus, and the internal machine main control module includes: the system comprises an internal machine main control sub-module, a first photoelectric isolation sub-module and a first communication sub-module;
The first end of the inner machine main control sub-module is electrically connected with the first end of the remote control receiving module, the second end of the inner machine main control sub-module is electrically connected with the first end of the first photoelectric isolation sub-module, and the third end of the inner machine main control sub-module is electrically connected with the second end of the first photoelectric isolation sub-module;
the third end of the first photoelectric isolation sub-module is electrically connected with the first end of the first communication sub-module, the fourth end of the first photoelectric isolation sub-module is electrically connected with the second end of the first communication sub-module, the fifth end of the first photoelectric isolation sub-module, the third end of the first communication sub-module and the third end of the remote control receiving module are all electrically connected with the third power supply end of the external machine main control module through the third communication bus, and the sixth end of the first photoelectric isolation sub-module, the fourth end of the first communication sub-module and the second end of the remote control receiving module are all electrically connected with the signal reference end through the fourth communication bus;
The fifth end of the first communication sub-module and the fourth end of the remote control receiving module are electrically connected with the first end of the first normally closed switch and the first power end of the external machine main control module through the first communication bus, and the sixth end of the first communication sub-module is electrically connected with the second power end of the external machine main control module through the second communication bus.
Optionally, the remote control receiving module includes: the remote controller receiving unit, the second normally closed switch and the first normally open switch;
the first end of the remote controller receiving unit is electrically connected with the first end of the second normally-closed switch, and the second end of the remote controller receiving unit is electrically connected with the first end of the first normally-open switch;
the second end of the first normally open switch is electrically connected with the first end of the main control sub-module of the internal machine;
The second end of the second normally closed switch and the fourth end of the first communication sub-module are electrically connected with the signal reference end through the fourth communication bus, the third end of the second normally closed switch, the fifth end of the first photoelectric isolation sub-module and the third end of the first communication sub-module are electrically connected with the third power end of the external machine main control module through the third communication bus, and the fourth end of the second normally closed switch and the fifth end of the first communication sub-module are electrically connected with the first end of the first normally closed switch and the first power end of the external machine main control module through the first communication bus.
Optionally, the air conditioner control circuit further comprises an internal machine switching power supply and an external machine weak current load of the air conditioner;
wherein the power supply signal comprises an internal machine power supply signal and an external machine weak current load power supply signal, the power supply control module comprises a third normally open switch and a fourth normally open switch;
The input end of the third normally open switch is electrically connected with the direct current output end of the external machine switch power supply, the output end of the third normally open switch is electrically connected with the internal machine switch power supply, the input end of the fourth normally open switch is electrically connected with the weak current output end of the external machine switch power supply, the output end of the fourth normally open switch is electrically connected with the external machine weak current load, and the control end of the third normally open switch and the control end of the fourth normally open switch are electrically connected with the power supply control signal end of the external machine main control module;
the power supply control signal end is used for controlling the third normally open switch and the fourth normally open switch to enter a closed and conductive state;
The third normally open switch is used for providing the power supply signal of the external machine to the internal machine switching power supply in the closed and conducting state;
The fourth normally open switch is used for providing the external weak current load with the external weak current load power supply signal in the closed and conducting state
In a second aspect, an embodiment of the present application provides a method for controlling an air conditioner, where the air conditioner includes an external machine main control module, a remote control receiving module, a standby communication module, and a power control module, and the method includes:
triggering the standby communication module to output a target signal according to the output signal of the remote control receiving module;
triggering the external machine main control module to control the working state of the standby communication module according to the target signal, and outputting a power control signal to the power control module;
And controlling a power supply signal output by an external machine switch power supply of the air conditioner through the power supply control module according to the power supply control signal.
Optionally, the working state includes a power-on off state, the power supply signal includes an internal machine power supply signal and an external machine weak current load power supply signal, the external machine main control module is triggered to control the working state of the standby communication module according to the target signal, and outputs a power supply control signal to the power supply control module, including:
determining whether the target signal belongs to a starting signal of the air conditioner or not through the external machine main control module;
If the target signal belongs to the starting signal, triggering the external machine main control module to control the standby communication module to enter the starting-up off state based on the starting signal, and outputting the power control signal to the power control module; the power supply control signal is used for triggering the power supply control module to output the power supply signal of the internal machine power supply to the internal machine switching power supply of the air conditioner and triggering the power supply control module to output the power supply signal of the external machine weak current load to the external machine weak current load.
Optionally, the working state further includes a standby closed state, the target signal is a signal output by the standby communication module according to the output signal in the standby closed state, and the external host control module is triggered to control the working state of the standby communication module according to the target signal, and the method further includes: and if the target signal does not belong to the starting signal, controlling the standby communication module to maintain the standby closed state through the external machine main control module.
In a third aspect, an embodiment of the present application provides an air conditioner control system, including: the air conditioner control circuit as in any one of the embodiments of the first aspect.
In a fourth aspect, an embodiment of the present application provides an air conditioning apparatus, including: the air conditioner control system according to the third application.
In summary, the air conditioner control circuit, the method, the system and the equipment provided by the embodiment of the application comprise an external machine main control module, a remote control receiving module, a standby communication module and a power supply control module of an air conditioner, wherein the standby communication module is used for outputting a target signal to the external machine main control module according to an output signal of the remote control receiving module, the external machine main control module is used for controlling the working state of the standby communication module according to the target signal and outputting a power supply control signal to the power supply control module, and the power supply control module is used for controlling a power supply signal output by an external machine switching power supply of the air conditioner according to the power supply control signal, so that the output of the external machine switching power supply of the air conditioner can be controlled by the power supply control module, the low-power standby is realized, and the problem that the external-dragging internal power supply mode of the existing air conditioner cannot realize the low-power consumption standby is solved.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the related art, the external ac power is rectified and filtered to obtain DC power, and then a power factor correction (Power Factor Correction, PFC) circuit is used to obtain variable DC power, for example, under the condition that the external ac power of the air conditioner is rectified and filtered to obtain 310V DC power, the PFC circuit is used to obtain 310V-380V DC power, and then the variable DC power can be connected to the DC bus to supply power to the load on the DC bus. The load on the direct current bus mainly comprises a heat radiation fan, a compressor, an electric heating of a land, a switching power supply and the like. The variable direct current obtains a plurality of low-voltage weak current power supplies of +5V, +12V, +15V and the like through a switching power supply and supplies the low-voltage weak current power to a weak current load.
In the internal-to-external power supply mode of the air conditioner, the indoor unit of the air conditioner is used as the main control of the whole air conditioner, so that the main control of the indoor unit cannot be powered off to realize the control of the whole air conditioner. In the standby mode, the switching power supply of the indoor unit is the most dominant power consumption unit, so that the power consumption of the air conditioner standby mode is about 1 Watt (Watt, W) W. The inventors found that: in the standby mode, the inside-out type air conditioner indoor unit (i.e. the indoor unit) can cut off the power supply to the outdoor unit, only the indoor unit works, the outdoor unit is completely powered off and does not work, and in the standby mode, the fan, the electric heating and other high-voltage load devices of the indoor unit stop working, but the indoor unit needs to receive the control signal of the remote controller through the remote control receiving module to realize restarting, so that the remote control receiver module of the indoor unit needs to work in the standby mode, and the switching power supply of the indoor unit continuously works to supply power for the remote control receiving module and the main chip control circuit module of the indoor unit; although the internal machine is in a state that the weak current load is mostly not operated and is in a silence state, static power consumption still exists, and the static power consumption is a main source of 1W power consumption in a standby mode.
In addition, in the photovoltaic energy storage hybrid power supply type air conditioner, an outdoor unit is connected with alternating current commercial power, photovoltaic direct current and storage battery direct current, so that the outdoor unit supplies direct current to an indoor unit. Therefore, the external machine (namely the outdoor machine) of the external-dragging internal-type air conditioner is used as the main control of the whole air conditioner, and the main control of the external machine cannot be powered off, so that the control of the whole air conditioner can be realized through the external-traffic main control. In the standby mode, the inner machine of the existing air conditioner needs to receive the control signal of the remote controller through the remote control receiving module to realize restarting and restarting, so that the remote control receiving module of the inner machine needs to work in the standby mode, namely, a switching power supply of the inner machine and a switching power supply of the outer machine need to work simultaneously, and the standby power consumption of the outer-dragging inner-type air conditioner is increased.
In view of the above, embodiments of the present application provide an air conditioner control circuit, a method, a system, and an apparatus, where a standby communication module outputs a target signal to an external host control module according to an output signal of a remote control receiving module, so that the external host control module can control a working state of the standby communication module according to the target signal, and output a power control signal to a power control module, so that the power control module can control a power supply signal output by an external switching power supply of an air conditioner according to the power control signal, thereby controlling an output of the external switching power supply of the air conditioner by the power control module, and turning off the internal switching power supply of the air conditioner and cutting off an unnecessary weak current load power supply of the air conditioner in a standby state of the air conditioner, thereby realizing low power consumption standby, and solving a problem that an external-to-internal power supply mode of an existing air conditioner cannot realize low power consumption standby.
For the purpose of facilitating an understanding of the embodiments of the present application, reference will now be made to the drawings and specific examples, which are not intended to limit the embodiments of the application.
Referring to fig. 1, a schematic structural diagram of an air conditioner control circuit according to an embodiment of the present application is shown. As shown in fig. 1, an air conditioner control circuit according to an embodiment of the present application includes: the external machine main control module 110, the remote control receiving module 120, the standby communication module 130 and the power supply control module 140 of the air conditioner. The standby communication module 130 is configured to output a target signal to the external machine main control module 110 according to an output signal of the remote control receiving module 120, where the external machine main control module 110 is configured to control an operating state of the standby communication module 130 according to the target signal, and output a power control signal to the power control module 140, and the power control module 140 is configured to control a power supply signal output by an external machine switching power supply of the air conditioner according to the power control signal.
Specifically, in the embodiment of the present application, the standby communication module 130 may be electrically connected to the external host control module 110, and the standby communication module 130 may be electrically connected to the remote control receiving module 120, so that the standby communication module 130 may receive the output signal output by the remote control receiving module 120, and may output the target signal to the external host control module 110 according to the output signal. Specifically, after the external machine main control module 110 receives the target signal output by the standby communication module 130, the working state of the standby communication module 130 can be controlled according to the target signal, and a power control signal can be output to the power control module 140, so that the power control module 140 can control the output of the external machine switching power supply of the air conditioner according to the power control signal, and further can turn off the internal machine switching power supply of the air conditioner and cut off the unnecessary weak current load power supply of the air conditioner in the standby state of the air conditioner, thereby solving the problem that the external-dragging internal power supply mode of the existing air conditioner cannot realize low-power standby. The remote control receiving module 120 may be a remote control receiving module, which is not limited in this embodiment of the present application.
As can be seen, in the embodiment of the present application, the remote control receiving module 120 outputs the output signal to the standby communication module 130, so that the standby communication module 130 can output the target signal to the external machine main control module 110 according to the output signal, so that the external machine main control module 110 can control the working state of the standby communication module 130 according to the target signal, and output the power control signal to the power control module 140, so as to trigger the power control module to control the power supply signal of the external machine switching power supply output by the air conditioner according to the power control signal, thereby controlling the output of the external machine switching power supply of the air conditioner through the power control module, so as to turn off the internal machine switching power supply of the air conditioner and cut off the unnecessary weak current load power supply of the air conditioner in the standby state of the air conditioner, thereby realizing low power consumption standby, and solving the problem that the existing air conditioner cannot realize low power consumption standby.
Referring to fig. 2, a schematic diagram of an air conditioner control circuit according to an alternative embodiment of the present application is shown. Based on the above embodiments, optionally, the standby communication module 130 in the embodiment of the present application may include: a first normally closed switch 131 and an optocoupler sub-module 132. The working state includes a start-up off state, wherein the start-up off state is a state that the first normally closed switch is turned off, a first end of the first normally closed switch 131 is electrically connected with an output end of the remote control receiving module 120, a second end of the first normally closed switch 131 is electrically connected with a first end of the optocoupler sub-module 132, and a control end of the first normally closed switch 131 is electrically connected with the external machine main control module 110; the first normally closed switch 131 is configured to transmit an output signal of the remote control receiving module 120 to the optocoupler sub-module 132, where a second end of the optocoupler sub-module 132 is electrically connected to the external host control module 110, and the optocoupler sub-module 132 is configured to generate the target signal based on the output signal of the remote control receiving module 120 and output the target signal to the external host control module 110, and the external host control module 110 is specifically configured to control the first normally closed switch 131 to be turned off according to the power-on signal when the target signal is the power-on signal. Wherein the first normally closed switch 131 (i.e., normally closed switch K-T-W in fig. 2) may be a normally closed relay, to which the embodiment of the present application is not limited.
Specifically, a first end of the first normally closed switch 131 may be electrically connected to an output end of the remote control receiving module 120, and a second end of the first normally closed switch 131 may be electrically connected to a first end of the optocoupler sub-module 132, so that the first normally closed switch 131 may receive an output signal output by the remote control receiving module 120 and transmit the output signal to the optocoupler sub-module 132, so that the optocoupler sub-module 132 may generate a target signal based on the output signal. Specifically, the second end of the optocoupler sub-module 132 may be electrically connected to the external machine main control module 110, so that the optocoupler sub-module 132 may output a target signal to the external machine main control module 110, the control end of the first normally closed switch 131 may be electrically connected to the external machine main control module 110, and after the external machine main control module 110 receives the target signal, the external machine main control module 110 may control the working state of the first normally closed switch 131 according to the target signal, for example, when the target signal is a power-on signal, the external machine main control module 110 may control the first normally closed switch 131 to enter a power-on off state; when the target signal is a shutdown signal, the external host control module 110 may control the first normally-closed switch 131 to enter a standby closed state, which is not limited in the embodiment of the present application.
In an alternative embodiment, the air conditioner control circuit provided by the example of the present application may further include: and an internal machine main control module 210. The internal machine main control module 210 is connected with the external machine main control module 110 through a communication bus, where the communication bus may include a first communication bus a; the optocoupler sub-module 132 includes an optocoupler OP and a first resistor R1; the first end of the remote control receiving module 120 is electrically connected with the first end of the internal machine main control module 210, and the second end of the remote control receiving module 120 is electrically connected with the first end of the first normally closed switch K-T-W and the first power end of the external machine main control module 110 through the first communication bus; the first end of the photoelectric coupler OP is electrically connected with the second end of the first normally closed switch K-T-W, the second end of the photoelectric coupler OP and the fourth end of the photoelectric coupler OP are electrically connected with the signal reference end GND-485-W of the air conditioner, and the third end of the photoelectric coupler OP is electrically connected with the target signal input end of the external machine main control module 110; the first end of the first resistor R1 is electrically connected with the third end of the photoelectric coupler OP, and the second end of the first resistor R1 is electrically connected with the second power end of the external machine main control module 110; the optical-electrical coupler OP is specifically configured to output the target signal to the external host control module 110 according to the remote control signal and the power signal provided by the second power supply terminal.
In an alternative embodiment of the present application, the communication bus further includes a second communication bus B, a third communication bus VCC-485, and a fourth communication bus GND-485, and the internal machine master control module 210 includes: the device comprises an internal machine main control sub-module 211, a first photoelectric isolation sub-module 212 and a first communication sub-module 213. The first end of the internal machine main control sub-module 211 is electrically connected with the first end of the remote control receiving module 120, the second end of the internal machine main control sub-module 211 is electrically connected with the first end of the first photoelectric isolation sub-module 212, and the third end of the internal machine main control sub-module 211 is electrically connected with the second end of the first photoelectric isolation sub-module 212; the third end of the first optoelectric isolation sub-module 212 is electrically connected to the first end of the first communication sub-module 213, the fourth end of the first optoelectric isolation sub-module 212 is electrically connected to the second end of the first communication sub-module 213, the fifth end of the first optoelectric isolation sub-module 212, the third end of the first communication sub-module 213, and the third end of the remote control receiving module 120 are all electrically connected to the third power supply end of the external host control module 110 through the third communication bus VCC-485, and the sixth end of the first optoelectric isolation sub-module 212, the fourth end of the first communication sub-module 213, and the second end of the remote control receiving module 120 are all electrically connected to the signal reference end GND-485-W through the fourth communication bus GND-485; the fifth end of the first communication sub-module 213 and the fourth end of the remote control receiving module 120 are electrically connected to the first end of the first normally closed switch K-T-W and the first power end of the external master control module 110 through the first communication bus a, and the sixth end of the first communication sub-module 213 is electrically connected to the second power end of the external master control module 110 through the second communication bus B.
Specifically, the internal machine main control module 210 may be electrically connected to the external machine main control module 110 through the first communication bus a and the second communication bus B, so that the internal machine main control module 210 may communicate with the external machine main control module 110, the third end of the first communication sub-module 213 and the third end of the remote control receiving module 120 may be electrically connected to the third power end of the external machine main control module 110 through the third communication bus VCC-485, the third communication bus VCC-485 may be connected to the power supply 5V-485, and the external machine main control module 110 and the internal machine main control module 210 may be powered through the power supply 5V-485, so as to ensure that the external machine main control module 110 and the internal machine main control module 210 may work normally. Specifically, the second end of the remote control receiving module may be electrically connected to the first end of the first normally closed switch K-T-W and the first power end of the external host control module 110 through the first communication bus a, the first end of the photoelectric coupler OP may be electrically connected to the second end of the first normally closed switch, so that the first normally closed switch K-T-W may transmit an output signal output by the remote control receiving module 120 to the photoelectric coupler OP, the photoelectric coupler OP may generate a target signal e according to a remote control signal and a power signal provided by the second power end, and may output the target signal e to the external host control module 130 through the third end of the photoelectric coupler, the third end of the photoelectric coupler OP may be electrically connected to a target signal input end of the external host control module 110, so that the control end of the first normally closed switch K-T-W may be electrically connected to the external host control module 110, so that the external host control module 110 may control the first normally closed switch K-T-W according to the target signal, and may be disconnected from the external host control module 110 after the communication signal is attempted to be the first communication signal, and the external host control module 110 may be disconnected from the communication bus, and the external host control module 110 may be disconnected; and under the condition that the target signal e is a shutdown signal, controlling the first normally-closed switch K-T-W to be closed according to the shutdown signal. The external host control module 130 and the internal host control module 210 may use 485 communication, so the communication bus between the external host control module 130 and the internal host control module 210 may be a 485 communication bus, for example, a 485 communication bus of 2 wires and a 485 communication bus of 4 wires may be used, which is not limited in this embodiment.
In an alternative embodiment of the present application, the remote control receiving module 210 includes: the remote controller receiving unit, the second normally closed switch K-T-N1 and the first normally open switch K-T-N2. The first end of the remote controller receiving unit is electrically connected with the first end of the second normally-closed switch K-T-N1, and the second end of the remote controller receiving unit is electrically connected with the first end of the first normally-open switch K-T-N2; the second end of the first normally open switch K-T-N2 is electrically connected with the first end of the main control sub-module 211 of the internal machine; the second end of the second normally closed switch K-T-N1 and the fourth end of the first communication sub-module 213 are electrically connected to the signal reference end GND-485-W through the fourth communication bus GND-485, the third end of the second normally closed switch K-T-N1, the fifth end of the first opto-electronic isolation sub-module 212, and the third end of the first communication sub-module 213 are electrically connected to the third power supply end of the external machine main control module 110 through the third communication bus VCC-485, and the fourth end of the second normally closed switch K-T-N1 and the fifth end of the first communication sub-module 213 are electrically connected to the first end of the first normally closed switch K-T-W and the first power supply end of the external machine main control module 110 through the first communication bus a. The remote control receiver unit may be specifically configured to receive a remote control signal, where the remote control signal may be a signal sent by a remote controller, for example, may be a high level signal sent by the remote controller, or may be a low level signal sent by the remote controller, which is not specifically limited in this embodiment.
In an embodiment of the present application, the external machine main control module 110 may include a central processor W-MCU of the external machine and a 485 communication unit, and the internal machine main control module 210 may include a central processor N-MCU of the internal machine (i.e., an internal machine main control sub-module) and a 485 communication unit (i.e., a first communication sub-module), so that the internal machine and the external machine of the air conditioner can realize 485 communication through the 485 communication unit to realize control of the air conditioner. Of course, the external machine main control module 110 may include other device units besides the external machine central processing unit W-MCU and 485 communication unit, such as a photoelectric isolation unit, a second resistor R2, a third resistor R3, etc., which is not limited in this embodiment; similarly, the main control module 210 of the internal machine may include other device units besides the central processing unit N-MCU and 485 communication unit of the internal machine, for example, the main control module may further include a photoelectric isolation unit (i.e. a first photoelectric isolation sub-module), a fourth resistor R4, a fifth resistor R5, etc., which is not limited in this embodiment.
In an alternative embodiment of the application, the air conditioner control circuit may further comprise an internal unit switching power supply and an external unit weak current load of the air conditioner. Wherein the power supply signal comprises an internal machine power supply signal and an external machine weak current load power supply signal, and the power supply control module 140 comprises a third normally open switch K-N-P and a fourth normally open switch K-W-2; the input end of the third normally open switch K-N-P is electrically connected with the direct current output end of the external machine switch power supply, the output end of the third normally open switch K-N-P is electrically connected with the internal machine switch power supply, the input end of the fourth normally open switch K-W-2 is electrically connected with the weak current output end of the external machine switch power supply, the output end of the fourth normally open switch K-W-2 is electrically connected with the weak current load of the external machine, and the control end of the third normally open switch K-N-P and the control end of the fourth normally open switch K-W-2 are electrically connected with the power supply control signal end of the external machine main control module 110; the power supply control signal end is used for controlling the third normally open switch K-N-P and the fourth normally open switch K-W-2 to enter a closed and conducting state; the third normally open switch K-N-P is used for providing the power supply signal of the external machine to the internal machine switch power supply in the closed and conductive state; and the fourth normally open switch K-W-2 is used for providing the external weak current load with the external weak current load power supply signal in the closed and conducting state.
Referring to fig. 3, a schematic diagram of a low-power consumption standby circuit of an external-internal split household air conditioner according to an embodiment of the present application is shown. After the internal machine of the air conditioner receives the shutdown signal and waiting for the time T, if the startup signal is not received in the time period, the standby mode is established. Specifically, in the air conditioner, high-power loads such as an inner machine fan, electric heating and the like stop working, a central processing unit W-MCU of the outer machine controls a first normally-open switch K-N-P to be cut off so as to stop power supply to the inner machine, and at the moment, the first normally-closed switch K-T-N is cut off and closed; meanwhile, the external machine central processing unit W-MCU can control the second normally open switch K-W-2 to cut off unnecessary weak current load power supply, such as cutting off +12V weak current load power supply, +15V weak current load power supply and the like, so as to complete the establishment of a standby mode. The first normally-open switch K-N-P and the second normally-open switch K-W-2 can be normally-open relays, and the first normally-closed switch K-T-N can be normally-closed relays, so that the power consumption of an air conditioner in a standby mode can be reduced by using the normally-closed relays and the normally-open relays, and the purpose of air conditioner control can be achieved.
In this embodiment, the remote control receiving module (i.e. the remote controller receiving module) may receive a remote control signal, and may provide the received remote control signal to the external host control module in the standby mode, where the remote control signal may be a signal sent by the remote controller. Specifically, when the remote controller sends out a high signal, the remote controller receiving module can output a high-level signal, the level of the first communication line A is high at the moment, and after passing through the photoelectric coupler OP, the remote controller receiving module can output a low-level signal to serve as a target signal to be transmitted to the central processing unit W-MCU of the external machine; when the remote controller sends out a low signal, the remote controller receiving module can output a low-level signal, the level of the first communication line A is low, and after the signal is transmitted to the photoelectric coupler OP through the normally closed relay K-T-W, the signal can output a high-level low-level signal to serve as a target signal to be transmitted to the central processor W-MCU of the external machine. In the embodiment, in a standby mode of the air conditioner, a normally closed relay K-T-N1 can be closed, power is supplied to a remote control receiving module through 5V-485-W, and a low-level signal output by the remote control receiving module is transmitted to an external machine through a photoelectric coupler OP; and in the normal working mode of the air conditioner, the normally open relay K-T-N2 can be controlled to be closed so as to supply power for the remote control receiving module. Therefore, in the embodiment, the normally closed relay K-T-N1 and the normally open relay K-T-N2 are used for supplying power to the remote controller receiving module, and the normally closed relay K-T-W and the photoelectric coupler OP are used for transmitting the low-level signal received by the remote controller receiving module to the external machine through the first communication line A, so that the aim of low-power consumption standby is fulfilled. In the process of restarting the air conditioner when the remote controller presses a start key, a signal sent by a signal output end of the remote controller receiving module can be transmitted to the external machine through a first communication line A, and when a complete start signal is received by a central processing unit W-MCU of the external machine, a power supply output by a switch power supply of the external machine can be controlled by a power supply control module to supply a telecommunication signal so as to supply power for the internal machine. Specifically, the central processing unit W-MCU of the external machine is used as a main control chip of the external machine, so that the first normally open switch K-N-P can be controlled to be conducted to supply power to the internal machine, and the normally closed relay K-T-W can be controlled to be disconnected to disconnect the photoelectric coupler OP from the 485 communication bus of the internal machine and the external machine; at this time, the internal machine switching power supply works and can output various direct current signals such as +5V, +12V and 0V to supply power for various loads in the internal machine. After the internal machine switching power supply works normally, the central processing unit N-MCU of the internal machine can work normally based on the direct current signal provided by the internal machine switching power supply, for example, the internal machine switching power supply can be used as a main control chip of the internal machine, the normally closed relay K-T-N is controlled to be disconnected, the first standby communication module 110 is disconnected from the 485 communication bus, and therefore the integrity of a communication circuit of the internal machine 485 is recovered and communication is attempted. The power supply of the internal machine is normally built, and meanwhile, the internal machine can start to receive a startup carrier signal sent by the remote controller subsequently, and can build communication with the internal machine to realize information interaction.
In an alternative embodiment of the application, the external machine of the air conditioner can adopt a photovoltaic energy storage hybrid power supply mode, as shown in fig. 3, the external machine can connect photovoltaic direct current to a direct current bus through a maximum power point tracking control (Maximum Power Point Tracking, MPPT) solar controller to realize photovoltaic input; the Power Factor Correction (PFC) circuit can be connected with alternating current mains supply to realize mains supply input; and, can connect the direct current of the battery directly to the direct current bus, realize the battery input, this embodiment is not limited to this.
Referring to fig. 4, a flowchart illustrating steps of an air conditioner control method according to an embodiment of the present application is shown. The air conditioner control method provided by the embodiment of the application can be applied to an air conditioner, the air conditioner can comprise an external machine main control module, a remote control receiving module, a standby communication module and a power supply control module, and the air conditioner control method specifically comprises the following steps:
step 410, triggering the standby communication module to output a target signal according to the output signal of the remote control receiving module.
And step 420, triggering the external machine main control module to control the working state of the standby communication module according to the target signal, and outputting a power control signal to the power control module.
Step 430, controlling a power supply signal output by an external switch power supply of the air conditioner through the power supply control module according to the power supply control signal.
It can be seen that, in the embodiment of the application, the remote control receiving module outputs the output signal, so as to trigger the standby communication module to output the target signal according to the output signal of the remote control receiving module, and trigger the external machine main control module to control the working state of the standby communication module according to the target signal, and output the power control signal to the power control module, and then, according to the power control signal, the external machine switching power supply of the air conditioner is controlled by the power control module to output the power supply signal, so that the power control module can control the output of the external machine switching power supply of the air conditioner, so as to turn off the internal machine switching power supply of the air conditioner and cut off the unnecessary weak current load power supply of the air conditioner in the standby state of the air conditioner, thereby effectively reducing the standby power, realizing energy conservation and emission reduction, and meeting the customer requirements of zero emission of carbon.
In an optional embodiment, the operating state department of the standby communication module in the embodiment of the present application includes a power on/off state, and the power supply signal may include an internal machine power supply signal and an external machine weak current load power supply signal, and according to the target signal, trigger the external machine main control module to control the operating state of the standby communication module, and output a power supply control signal to the power supply control module, which may specifically include: determining whether the target signal belongs to a starting signal of the air conditioner or not through the external machine main control module; if the target signal belongs to the starting signal, triggering the external machine main control module to control the standby communication module to enter the starting-up off state based on the starting signal, and outputting the power control signal to the power control module; the power supply control signal is used for triggering the power supply control module to output the power supply signal of the internal machine power supply to the internal machine switching power supply of the air conditioner and triggering the power supply control module to output the power supply signal of the external machine weak current load to the external machine weak current load.
In an optional embodiment, the working state of the standby communication module in the embodiment of the present application may specifically further include a standby closed state, where the target signal is a signal output by the standby communication module according to the output signal in the standby closed state, and triggering the external host control module to control the working state of the standby communication module according to the target signal, and the method further includes: and if the target signal does not belong to the starting signal, controlling the standby communication module to maintain the standby closed state through the external machine main control module.
Referring to fig. 5, a schematic structural diagram of an air conditioner control system according to an embodiment of the present application is shown. Further, an air conditioner control system is provided according to an embodiment of the present application, as shown in fig. 5, the air conditioner control system 500 provided in the embodiment of the present application may include an air conditioner control circuit 510, where the air conditioner control circuit 510 may include the air conditioner control circuit provided in any of the above embodiments.
Referring to fig. 6, a block diagram of an air conditioner according to an embodiment of the present application is shown. Further, the embodiment of the application also provides air conditioning equipment, which comprises the air conditioning control system provided by any embodiment. As shown in fig. 6, the air conditioning apparatus 600 includes: an air conditioning control system 610; the air conditioning control system 610 may be the air conditioning control system described in the above embodiment.
Optionally, the air conditioning apparatus provided in the embodiment of the present application may further include: a processor, and a memory for storing executable instructions of the processor; wherein the processor is configured to execute the air conditioner control method according to any one of the method embodiments described above.
The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the air conditioner control method according to any of the preceding embodiments.
It should be noted that, in the method, system, air conditioning apparatus and medium embodiments, since they are substantially similar to the air conditioning control circuit embodiments, the description is relatively simple, and the relevant points are only referred to in the description of the air conditioning control circuit embodiments.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of function in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the application, and is not meant to limit the scope of the application, but to limit the application to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the application are intended to be included within the scope of the application.