CN219264530U - Standby control circuit of air conditioner and air conditioner - Google Patents
Standby control circuit of air conditioner and air conditioner Download PDFInfo
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- CN219264530U CN219264530U CN202320076967.2U CN202320076967U CN219264530U CN 219264530 U CN219264530 U CN 219264530U CN 202320076967 U CN202320076967 U CN 202320076967U CN 219264530 U CN219264530 U CN 219264530U
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Abstract
The application provides a standby control circuit of air conditioner and air conditioner, standby control circuit includes sampling module, comparison module and second switch module. The sampling module is used for collecting the current of the communication circuit of the air conditioner and outputting sampling voltage; the comparison module is connected with the sampling module and is used for inputting sampling voltage, inputting reference voltage and outputting driving signals according to the sampling voltage and the reference voltage; the second switch module is connected with the comparison module and a power supply of an outdoor unit load, and the driving signal is used for driving the second switch module to be turned on or turned off; when the air conditioner is in standby, the communication circuit is disconnected, so that the comparison module outputs a first driving signal, and the first driving signal enables the second switch module to be disconnected, thereby disconnecting the power supply of the outdoor unit load. By the circuit, the load of the outdoor unit does not consume electricity when the air conditioner is in standby, so that the power consumption of the air conditioner is further reduced, and the energy-saving effect is realized.
Description
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to a standby control circuit of an air conditioner and the air conditioner.
Background
As one of the current household appliances, the air conditioner is energy-saving and electricity-saving, which is a part of important attention of users. Air conditioners are generally divided into indoor unit circuits and outdoor unit circuits, each of which has a power supply. In the standby state of the existing air conditioner, the electric control and other partial loads of the outdoor unit are all in working states, so that continuous power supply is needed, the standby state of the outdoor unit cannot be maintained to be low in power consumption, and the service life of the air conditioner can be even influenced.
Disclosure of Invention
The embodiment of the application provides a standby control circuit of an air conditioner and the air conditioner, which can solve the problem that the power consumption of an air conditioner outdoor unit is still higher in a standby state.
In order to achieve the above purpose, the present application provides the following technical solutions:
the standby control circuit of the air conditioner comprises an indoor unit, an outdoor unit and a communication circuit, wherein the indoor unit is connected with the outdoor unit through the communication circuit; the communication circuit comprises a first switch module, and when the first switch module is disconnected, the communication circuit is disconnected; when the first switch module is conducted, the communication circuit is conducted; the standby control circuit includes:
the sampling module is connected with the communication circuit and is used for sampling the current of the communication circuit and outputting a corresponding sampling voltage;
the first input end of the comparison module is connected with the sampling module and used for inputting the sampling voltage, the second input end of the comparison module is used for inputting the reference voltage, and the output end of the comparison module is used for outputting a driving signal;
the second switch module is connected with the output end of the comparison module and is used for being connected with a power supply of the outdoor unit load;
when the air conditioner is in standby, the first switch module is turned off, the comparison module outputs a first driving signal, and the first driving signal is used for enabling the second switch module to be turned off; when the air conditioner is awakened from a standby state, the first switch module is turned on, the comparison module outputs a second driving signal, and the second driving signal is used for enabling the second switch module to be turned on.
In some embodiments, the second switch module comprises a transistor and a relay;
the base electrode of the triode is connected with the output end of the comparison module, the collector electrode of the triode is connected with a power supply, and the emitter electrode of the triode is connected with the first control end of the relay;
the second control end of the relay is grounded, the input end of the relay is used for being connected with a power supply of the outdoor unit load, and the output end of the relay is used for being connected with the outdoor unit load;
when the air conditioner is in standby, the first driving signal enables the relay to be disconnected so as to disconnect the load from the power supply; when the air conditioner is awakened from a standby state, the second driving signal enables the relay to be conducted so as to conduct the load and the power supply.
In some embodiments, the first drive signal is a high level for driving the transistor off to turn off the relay; the second driving signal is in a low level, and the low level is used for driving the triode to be conducted so as to conduct the relay.
In some embodiments, a collector of the triode is used for connecting a power supply of the outdoor unit load.
In some embodiments, the comparison module includes a comparator, a first resistor, a second resistor, a third resistor, and a fourth resistor;
the first input end of the comparator is connected with the output end of the sampling module through the first resistor;
one end of the second resistor is connected with a power supply, the other end of the second resistor is connected with one end of the third resistor, the other end of the third resistor is grounded, and a second input end of the comparator is connected between the second resistor and the third resistor;
and the output end of the comparator is connected with the base electrode of the triode through the fourth resistor.
In some embodiments, the sampling module includes a sampling sub-module and an amplifying sub-module;
the input end of the sampling submodule is connected with the communication circuit and is used for sampling the current of the communication circuit;
the input end of the amplifying submodule is connected with the output end of the sampling submodule; the output end of the amplifying submodule is connected with the first input end of the comparator through the first resistor; the amplifying submodule is used for amplifying the voltage output by the sampling submodule into the sampling voltage and outputting the sampling voltage.
In some embodiments, the sampling submodule includes a fifth resistor, a sixth resistor, and a seventh resistor;
the fifth resistor is used for being connected in series in the communication circuit;
the first end of the sixth resistor is connected with one end of the fifth resistor, and the second end of the sixth resistor is used for outputting a first voltage;
the first end of the seventh resistor is connected with the other end of the fifth resistor, and the second end of the seventh resistor is used for outputting a second voltage.
In some embodiments, the amplifying submodule includes an amplifier, an eighth resistor, and a ninth resistor;
the first input end of the amplifier is connected with the second end of the sixth resistor, and the first input end of the amplifier is grounded through the eighth resistor;
a second input end of the amplifier is connected with a second end of the seventh resistor;
the output end of the amplifier is connected with the first input end of the comparator through the first resistor, and the output end of the amplifier is also connected with the second input end of the amplifier through the ninth resistor.
In some embodiments, the communication circuit further includes a protection module connected in series between the first switch module and a power input terminal of the communication circuit for protecting the first switch module.
An air conditioner, comprising:
an indoor unit;
the outdoor unit comprises the standby control circuit;
and the indoor unit is connected with the outdoor unit through the communication circuit, and the standby control circuit is connected with the communication circuit.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort to a person skilled in the art.
Fig. 1 is a schematic structural diagram of a standby control circuit according to an embodiment of the present application.
Fig. 2 is a schematic diagram of a first structure of an air conditioner according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a second structure of an air conditioner according to an embodiment of the present application.
Fig. 4 is a schematic diagram of a third structure of an air conditioner according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts throughout the following description.
The embodiment of the application provides a standby control circuit which is applied to an air conditioner. The indoor unit is connected with the outdoor unit through a communication circuit; the communication circuit comprises a first switch module, and when the first switch module is disconnected, the communication circuit is disconnected; when the first switch module is turned on, the communication circuit is turned on. For example, when the air conditioner enters a standby state, the first switch module is turned off; when the air conditioner is awakened from the standby state, the first switch module is conducted.
For example, referring to fig. 1, fig. 1 is a schematic diagram of a standby control circuit 100 according to an embodiment of the present application. The standby control circuit 100 includes a sampling module 110, a comparing module 120, and a second switching module 130.
The sampling module 110 is connected to a communication circuit of the air conditioner, and is configured to collect a current of the communication circuit and output a corresponding sampling voltage.
The first input end of the comparison module 120 is connected to the sampling module 110 for inputting a sampling voltage, and the second input end of the comparison module 120 is connected to a power supply for inputting a reference voltage. The output of the comparison module 120 is connected to a second switching module 130. The comparing module 120 is configured to compare the sampled voltage with a reference voltage, and output a driving signal to the second switching module 130 according to the comparison result. For example, when the sampling voltage is less than the reference voltage, the comparison module 120 outputs the first driving signal; when the sampling voltage is greater than the reference voltage, the comparison module 120 outputs the second driving signal.
The second switching module 130 is connected to a power supply of an outdoor unit load of the air conditioner. When the second switch module 130 is turned on, the power supply supplies power to the outdoor unit load through the second switch module 130; when the second switching module 130 is turned off, the power supply and the outdoor unit load are disconnected. The on and off of the second switching module 130 is driven by the driving signal output from the comparing module 120. For example, if the comparison module 120 outputs the first driving signal, the second switching module 130 is turned off; if the comparison module 120 outputs the second driving signal, the second switch module 130 is turned on.
In practical application, when the air conditioner is in standby, the first switch module is turned off, the communication circuit is turned off, the current of the communication circuit collected by the sampling module 110 is 0A, and the sampling voltage input by the comparing module 120 is 0V. The reference voltage is, for example, greater than 0V, and the sampled voltage is less than the reference voltage. At this time, the comparison module 120 outputs, for example, a first driving signal, and the first driving signal drives the second switch module 130 to be turned off, so that the power supply and the outdoor unit load are disconnected. When the air conditioner is awakened from the standby state, the first switch module is turned on, and the communication circuit is turned on. At this time, the sampling voltage output to the comparing module 120 through the sampling module 110 is, for example, greater than the reference voltage, and the comparing module 120 outputs the second driving signal. The second driving signal drives the second switching module 130 to be turned on, so that the power supply supplies power to the outdoor unit load through the second switching module 130.
In the standby control circuit 100 provided in this embodiment, when the air conditioner is in standby, the outlet circuit is turned off to make the sampling voltage input by the comparison module smaller than the reference voltage, so that the driving signal output by the comparison module 120 is used to drive the second switch module 130 to be turned off, so as to disconnect the power supply of the outdoor unit load from the outdoor unit load. Therefore, the outdoor unit load does not consume electricity when the air conditioner is in standby, and the standby power consumption of the air conditioner can be reduced.
For a clearer description of the standby control circuit 100 provided in the present application, the following description will be made with reference to fig. 2, and fig. 2 is a schematic diagram of a first structure of an air conditioner 1000 provided in an embodiment of the present application.
The air conditioner 1000 includes an indoor unit 10, an outdoor unit 20, the standby control circuit 100 and the communication circuit 200. The indoor unit 10 is connected to the outdoor unit 20 through a communication circuit 200. The communication circuit 200 includes an internal communication circuit 210, an external communication circuit 220, an energy storage module 230 and a first switch module 240.
One end of the internal machine communication circuit 210 is electrically connected with one end of the energy storage module 230, and the other end is connected with one end of the external machine communication circuit 220; the other end of the energy storage module 230 is connected to the other end of the external communication circuit 220, thereby forming a communication current loop. The indoor unit communication circuit 210 and the outdoor unit communication circuit 220 can perform signal transmission with each other, thereby allowing the indoor unit 10 to communicate with the outdoor unit 20.
The energy storage module 230 is used for supplying power to the internal communication circuit 210 and the external communication circuit 220. The indoor unit communication circuit 210 is configured to receive a signal output from the indoor unit 10 and output the signal to the outdoor unit communication circuit 220, and to receive a signal output from the outdoor unit communication circuit 220 and output the signal to the indoor unit 10. The outdoor unit communication circuit 220 is configured to receive the signal output from the outdoor unit 20 and output the signal to the indoor unit communication circuit 210, and to receive the signal output from the indoor unit communication circuit 210 and output the signal to the outdoor unit 20.
The first switch module 240 is used, for example, to connect with a live wire for inputting an ac power source, thereby charging the energy storage module 230. When the first switch module 240 is turned on, the communication circuit 200 is turned on and works normally; when the first switch module 240 is turned off and the energy storage module 230 is exhausted, the communication circuit 200 is not turned on, and the operating voltage is 0V.
The sampling module 110 of the standby control circuit 100, for example, collects voltages on the connection of the internal unit communication circuit 210 and the external unit communication circuit 220.
The outdoor unit 20 further includes a power supply 300 and a load 400, and the power supply 300 is connected to the load 400 through the second switch module 130 of the standby control circuit 100. When the second switch module 130 is turned on, the power supply 300 supplies power to the load 400 through the second switch module 130; when the second switching module 130 is turned off, the load 400 is disconnected from the power supply 300.
Further, based on the above-described air conditioner 1000, the embodiments of the present application provide a more specific structure of the air conditioner 1000. For example, referring to fig. 3, fig. 3 is a schematic diagram of a second structure of an air conditioner 1000 according to an embodiment of the present application.
The second switch module 130 includes a first transistor Q1 and a relay K1.
The base of the first triode Q1 is connected to the output end of the comparison module 120, the collector of the first triode Q1 is connected to the power supply VCC1, and the emitter of the first triode Q1 is connected to the first control end of the relay K1. In some embodiments, the collector of the first transistor Q1 is connected to the power supply 300.
The second control end of the relay K1 is grounded, the input end of the relay K1 is used for being connected with the power supply 300, and the output end of the relay K1 is used for being connected with the load 400. When the air conditioner is in standby, the comparison module 120 outputs a first driving signal to drive the first triode Q1 to be disconnected, so that the relay K1 is disconnected, and the load 400 and the power supply 300 are disconnected; when the air conditioner wakes up from the standby state, the comparison module 120 outputs the second driving signal to drive the first transistor Q1 to be turned on, so that the relay K1 is turned on, thereby turning on the power supply 300 and the load 400.
In some embodiments, the first drive signal is high for driving the transistor off to turn off the relay; the second driving signal is in a low level, and the low level is used for driving the triode to conduct so as to conduct the relay.
The comparison module 120 includes a comparator COM, a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4.
One end of the second resistor R2 is connected to the power VCC2, the other end is connected to one end of the third resistor R3, and the other end of the third resistor R3 is grounded. A first input of the comparator COM is connected to an output of the sampling module 110 via a first resistor R1. The second input end of the comparator COM is connected between the second resistor R2 and the third resistor R3; the output end of the comparator COM is connected to the base of the first transistor Q1 through a fourth resistor R4.
Since the reference voltage input by the second input terminal of the comparator COM is the voltage between the second resistor R2 and the third resistor R3, the magnitude of the reference voltage can be adjusted by adjusting the magnitudes of the second resistor R2 and the third resistor R3. In some embodiments, the reference voltage is adjusted to be less than the minimum value of the sampling voltage output by the sampling module 110 when the communication circuit 200 communicates normally, so as to avoid the sampling voltage being less than the reference voltage when the communication is unstable, and the second switch module 130 is turned off by mistake.
In some embodiments, the comparator COM outputs a high level when the sampling voltage input by the comparator COM is less than the input reference voltage; when the sampling voltage input by the comparator COM is greater than the input reference voltage, the comparator COM outputs a low level.
The sampling module 110 includes a sampling sub-module 111 and an amplifying sub-module 112.
The sampling submodule 111 is configured to collect a current of the communication circuit 200, and includes a fifth resistor R5, a sixth resistor R6, and a seventh resistor R7. The fifth resistor R5 is connected in series with the communication circuit 200, for example, between the energy storage module 230 and the external communication circuit 220. One end of the sixth resistor R6 is connected with one end of the fifth resistor R5, and the other end of the sixth resistor R6 is used for outputting a first voltage; one end of the seventh resistor R7 is connected to the other end of the fifth resistor R5, and the other end is used for outputting the second voltage.
The amplifier AMP amplifies the voltage output from the sampling sub-module 111 and outputs the amplified voltage to the comparison module 120, for example, the above-mentioned sampling voltage. The amplifying sub-module 112 includes an amplifier AMP, an eighth resistor R8, and a ninth resistor R9. The first input of the amplifier AMP is connected to the eighth resistor R8, and the first input of the amplifier AMP is also grounded through the fifth resistor R5; the second input of the amplifier AMP is connected to the eighth resistor R8, and the second input of the amplifier AMP is also connected to the output of the amplifier AMP through the sixth resistor R6; the output of the amplifier is connected to a first input of the comparator COM via a first resistor R1.
In some embodiments, the communication circuit 200 further includes a protection module 250. The protection module 250 is connected in series between the input of the first switch module 240 and the fire wire ACL, for example. The protection module 250 is used for protecting the first switch module 240, and preventing the first switch module 240 from being damaged due to unstable voltage. The protection module 250 includes a current limiting resistor R0, a tenth resistor R10, and a diode D1. The cathode of the diode D1 is connected to the input end of the first switch module 240; the anode of the diode D1 is connected with a current limiting resistor R0 and a tenth resistor R10 in series in sequence and then is connected with a fire wire ACL.
In some embodiments, the first switching module 240 is, for example, a MOS transistor or a relay. The control end of the first switch module 240 is, for example, connected to the control module 500 of the indoor unit 10, and the control module 500 is used for controlling on or off of the first switch module 240. For example, when the air conditioner enters a standby state, the control module 500 controls the first switching module 240 to be turned off; when the air conditioner wakes up in a standby state, the control module 500 controls the first switch module 240 to be turned on.
In practical applications, when the air conditioner 1000 enters the standby state, the control module 500 controls the first switch module 240 to be turned off, for example, according to an instruction sent by a user, so that the communication circuit 200 is not turned on. At this time, the current collected by the sampling submodule 111 is 0A, the voltage output by the sampling submodule 111 is 0V, and the sampling voltage amplified by the amplifier A1 and output to the comparator COM is still 0V, so that the reference voltage input by the comparator COM is greater than the sampling voltage. At this time, the comparator COM outputs, for example, a high level, and the high level drives the first transistor Q1 to be turned off, so that the relay K1 is turned off to disconnect the power supply 300 from the load 400 of the outdoor unit. When the air conditioner wakes up from the standby state, the control module 500 controls the first switch module 240 to be turned on according to the instruction of the user, and the communication circuit 200 is turned on. At this time, the current of the communication circuit 200 collected by the sampling submodule 111 is outputted as a voltage, and the voltage outputted by the sampling submodule 111 is amplified by the amplifier AMP and then outputted as a sampling voltage to the comparator COM. Since the reference voltage input by the comparator COM is adjusted to be smaller than the minimum value of the sampling voltage output by the sampling module 110 when the communication circuit 200 communicates normally, the reference voltage is smaller than the sampling voltage at this time, the comparator COM outputs a low level, and the low level drives the first triode Q1 to be turned on, so that the relay K1 is turned on, and the power supply 300 supplies power to the load 400 through the relay K1.
Further, referring to fig. 4, fig. 4 is a schematic diagram of a third structure of an air conditioner 1000 according to an embodiment of the present application.
The internal communication circuit 210 includes a third communication module 221, a fourth communication module 222, and a first voltage stabilizing module 213.
The third communication module 221 includes a first optocoupler OPT1, a first capacitor C1, a second capacitor C2, an eleventh resistor R11, a twelfth resistor R12, and a thirteenth resistor R13. The first end of the first optocoupler OPT1 is connected to the first end of the energy storage module 230, the second end of the first optocoupler OPT1 is connected to the fourth communication module 222, the third end of the first optocoupler OPT1 is connected to the power VCC3, the first optocoupler OPT1 is connected to the signal input end of the indoor unit 10 through an eleventh resistor, and the fourth end of the first optocoupler OPT1 is further grounded through a twelfth resistor R12. One end of the first capacitor C1 is connected between the eleventh resistor R11 and the signal input end of the indoor unit 10, and the other end is grounded. One end of the second capacitor C2 connected in parallel with the thirteenth resistor R13 is connected with the first end of the first optocoupler OPT1, and the other end of the second capacitor C2 is connected with the second end of the first optocoupler OPT 1.
The fourth communication module 222 includes a second optocoupler OPT2, a second triode Q2, a fourteenth resistor R14, a fifteenth resistor R15, a sixteenth resistor R16, and a seventeenth resistor R17.
The first end of the second optocoupler OPT2 is connected to the power supply VCC4 through a fifteenth resistor R15, and the first end of the second optocoupler OPT2 is also connected to the second end of the second optocoupler OPT2 through a sixteenth resistor R16. The second end of the second optocoupler OPT2 is connected with the collector electrode of the second triode Q2, and the emitter electrode of the second triode Q2 is grounded; the base electrode of the second triode Q2 is connected with the collector electrode through a fourteenth resistor R14 and is also connected with the signal output end of the indoor unit 10 through a seventeenth resistor R17. The third end of the second optocoupler OPT2 is connected with the external communication circuit 220; the fourth end of the second optocoupler OPT2 is connected to the first end of the first optocoupler OPT 1.
The first voltage stabilizing module 213 includes a second diode D2, a third diode D3, and a third capacitor C3.
The anode of the second diode D2 is connected with the third end of the second optocoupler OPT2, the cathode of the second diode D2 is connected with the anode of the third diode D3, and the cathode of the third diode D3 is connected with the first end of the first optocoupler OPT 1. One end of the third capacitor C3 is connected with the third end of the second optocoupler OPT2, and the other end of the third capacitor C is connected with the first end of the first optocoupler OPT 1.
The external communication circuit 220 includes a third communication module 221, a fourth communication module 222, and a first voltage stabilizing module 213.
The third communication module 221 includes a third optocoupler OPT3, a fourth capacitor C4, a fifth capacitor C5, an eighteenth resistor R18, a nineteenth resistor R19, and a twentieth resistor R20. The first end of the third optocoupler OPT3 is connected with the third end of the second optocoupler OPT2, the second end of the third optocoupler OPT3 is connected with the fourth communication module 222, the third end of the third optocoupler OPT3 is connected with the signal input end of the indoor unit 10 through an eleventh resistor, the third end of the third optocoupler OPT3 is grounded through a nineteenth resistor R19, and the fourth end of the third optocoupler OPT3 is connected with the power VCC5. One end of the fourth capacitor C4 is connected between the eighteenth resistor R18 and the signal input end of the indoor unit 10, and the other end is grounded. One end of the fifth capacitor C5 connected in parallel with the twentieth resistor R20 is connected with the first end of the third optocoupler OPT3, and the other end of the fifth capacitor C5 is connected with the second end of the third optocoupler OPT 3.
The fourth communication module 222 includes a fourth optocoupler OPT4, a third triode Q3, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, and a twenty-fourth resistor R24.
The first end of the fourth optocoupler OPT4 is connected to the power supply VCC6 through a twenty-second resistor R22, and the first end of the fourth optocoupler OPT4 is also connected to the second end of the fourth optocoupler OPT4 through a twenty-third resistor R23. The second end of the fourth optocoupler OPT4 is connected with the collector electrode of the third triode Q3, and the emitter electrode of the third triode Q3 is grounded; the base electrode of the third triode Q3 is connected with the collector electrode through a twenty-first resistor R21 and is also connected with the signal output end of the indoor unit 10 through a twenty-fourth resistor R24; the third end of the fourth optocoupler OPT4 is connected to the second end of the energy storage module 230 through a fifth resistor R5; the fourth end of the fourth optocoupler OPT4 is connected to the first end of the third optocoupler OPT 3.
The first voltage stabilizing module 213 includes a fourth diode D4, a fifth diode D5, and a sixth capacitor C6.
The anode of the fourth diode D4 is connected with the third end of the fourth optocoupler OPT4, the cathode of the fourth diode D4 is connected with the anode of the fifth diode D5, and the cathode of the fifth diode D5 is connected with the first end of the third optocoupler OPT 3. One end of the sixth capacitor C6 is connected with the third end of the fourth optocoupler OPT4, and the other end of the sixth capacitor C is connected with the first end of the third optocoupler OPT 3.
The energy storage module 230 includes a twenty-fifth resistor R25, a sixth diode D6, an electrolytic capacitor E1, and a seventh capacitor C7 connected in parallel.
The positive electrode of the electrolytic capacitor E1 is connected to the first end of the first optocoupler OPT1, and the negative electrode is connected to the third end of the fourth optocoupler OPT4 through the fifth resistor R5.
The second diode D2, the third diode D3, the fourth diode D4, the fifth diode D5, and the sixth diode D6 are schottky diodes, for example.
In the standby control circuit 100 and the air conditioner 1000 provided in the embodiments of the present application, when the air conditioner enters the standby state, the first switch module 240 connected in series in the communication circuit 200 is turned off, and the communication circuit 200 is not turned on. At this time, the sampling voltage output from the sampling module 110 to the comparison module 120 is 0V. The sampling voltage input by the comparison module 120 is smaller than the input reference voltage, and the output driving signal drives the second switch module 130 to be turned off, so that the power supply 300 of the outdoor unit load and the outdoor unit load 400 are disconnected. Therefore, the outdoor unit load 400 does not consume power during standby of the air conditioner, and power consumption during standby of the air conditioner can be reduced, thereby achieving an energy saving effect.
The standby control circuit of the air conditioner and the air conditioner provided by the embodiment of the application are described in detail, and specific examples are applied to the description of the principle and the implementation of the application, and the description of the above embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.
Claims (10)
1. The standby control circuit of the air conditioner is characterized by comprising an indoor unit, an outdoor unit and a communication circuit, wherein the indoor unit is connected with the outdoor unit through the communication circuit; the communication circuit comprises a first switch module, and when the first switch module is disconnected, the communication circuit is disconnected; when the first switch module is conducted, the communication circuit is conducted; the standby control circuit includes:
the sampling module is connected with the communication circuit and is used for sampling the current of the communication circuit and outputting a corresponding sampling voltage;
the first input end of the comparison module is connected with the sampling module and used for inputting the sampling voltage, the second input end of the comparison module is used for inputting the reference voltage, and the output end of the comparison module is used for outputting a driving signal;
the second switch module is connected with the output end of the comparison module and is used for being connected with a power supply of the outdoor unit load;
when the air conditioner is in standby, the first switch module is turned off, the comparison module outputs a first driving signal, and the first driving signal is used for enabling the second switch module to be turned off; when the air conditioner is awakened from a standby state, the first switch module is turned on, the comparison module outputs a second driving signal, and the second driving signal is used for enabling the second switch module to be turned on.
2. The standby control circuit of an air conditioner according to claim 1, wherein the second switching module comprises a triode and a relay;
the base electrode of the triode is connected with the output end of the comparison module, the collector electrode of the triode is connected with a power supply, and the emitter electrode of the triode is connected with the first control end of the relay;
the second control end of the relay is grounded, the input end of the relay is used for being connected with a power supply of the outdoor unit load, and the output end of the relay is used for being connected with the outdoor unit load;
when the air conditioner is in standby, the first driving signal enables the relay to be disconnected so as to disconnect the load from the power supply; when the air conditioner is awakened from a standby state, the second driving signal enables the relay to be conducted so as to conduct the load and the power supply.
3. The standby control circuit of an air conditioner according to claim 2, wherein the first driving signal is a high level for driving the transistor to be turned off to turn off the relay; the second driving signal is in a low level, and the low level is used for driving the triode to be conducted so as to conduct the relay.
4. The standby control circuit of an air conditioner according to claim 2, wherein a collector of the triode is used for connecting a power supply of the outdoor unit load.
5. The standby control circuit of an air conditioner according to claim 2, wherein the comparison module comprises a comparator, a first resistor, a second resistor, a third resistor and a fourth resistor;
the first input end of the comparator is connected with the output end of the sampling module through the first resistor;
one end of the second resistor is connected with a power supply, the other end of the second resistor is connected with one end of the third resistor, the other end of the third resistor is grounded, and a second input end of the comparator is connected between the second resistor and the third resistor;
and the output end of the comparator is connected with the base electrode of the triode through the fourth resistor.
6. The standby control circuit of an air conditioner according to claim 5, wherein the sampling module includes a sampling sub-module and an amplifying sub-module;
the input end of the sampling submodule is connected with the communication circuit and is used for sampling the current of the communication circuit;
the input end of the amplifying submodule is connected with the output end of the sampling submodule; the output end of the amplifying submodule is connected with the first input end of the comparator through the first resistor; the amplifying submodule is used for amplifying the voltage output by the sampling submodule into the sampling voltage and outputting the sampling voltage.
7. The standby control circuit of an air conditioner according to claim 6, wherein the sampling submodule includes a fifth resistor, a sixth resistor, and a seventh resistor;
the fifth resistor is used for being connected in series in the communication circuit;
the first end of the sixth resistor is connected with one end of the fifth resistor, and the second end of the sixth resistor is used for outputting a first voltage;
the first end of the seventh resistor is connected with the other end of the fifth resistor, and the second end of the seventh resistor is used for outputting a second voltage.
8. The standby control circuit of an air conditioner according to claim 7, wherein the amplifying submodule includes an amplifier, an eighth resistor and a ninth resistor;
the first input end of the amplifier is connected with the second end of the sixth resistor, and the first input end of the amplifier is grounded through the eighth resistor;
a second input end of the amplifier is connected with a second end of the seventh resistor;
the output end of the amplifier is connected with the first input end of the comparator through the first resistor, and the output end of the amplifier is also connected with the second input end of the amplifier through the ninth resistor.
9. The standby control circuit of an air conditioner according to any one of claims 1 to 8, wherein the communication circuit further comprises a protection module connected in series between the first switch module and a power input terminal of the communication circuit for protecting the first switch module.
10. An air conditioner, comprising:
an indoor unit;
an outdoor unit including the standby control circuit according to any one of claims 1 to 9;
and the indoor unit is connected with the outdoor unit through the communication circuit, and the standby control circuit is connected with the communication circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320076967.2U CN219264530U (en) | 2023-01-09 | 2023-01-09 | Standby control circuit of air conditioner and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320076967.2U CN219264530U (en) | 2023-01-09 | 2023-01-09 | Standby control circuit of air conditioner and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219264530U true CN219264530U (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320076967.2U Active CN219264530U (en) | 2023-01-09 | 2023-01-09 | Standby control circuit of air conditioner and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219264530U (en) |
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2023
- 2023-01-09 CN CN202320076967.2U patent/CN219264530U/en active Active
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