Control method, device and equipment of air conditioner and storage medium

Abstract

The invention discloses a control method, device and equipment of an air conditioner and a storage medium. The air conditioner comprises an indoor unit, an outdoor unit and an energy storage module, a refrigerant pipeline is arranged between the indoor unit and the outdoor unit, an electric valve is arranged on the refrigerant pipeline, and the method comprises the steps that the power supply state representing whether the air conditioner is powered on or not is obtained; and if it is determined that the air conditioner is powered on based on the power supply state, first indication information is generated and used for indicating the energy storage module to be switched to the charging mode. Therefore, it is guaranteed that the energy storage module has sufficient energy to drive the air conditioner so as to control the electric valve, and the safety of the air conditioner is improved.

Description

Technical Field

[0001] The present application relates to the field of control technologies, and in particular, to a control method, device, equipment and storage medium for an air conditioner. Background Art

[0002] At present, air conditioners all achieve refrigeration and heating by circulating and exchanging heat of refrigerant in the pipeline system. However, due to the flammable and explosive characteristics of the refrigerant, there are certain safety hazards in the air conditioner.

[0003] To ensure the safety of the air conditioner, an electric valve is provided on the air conditioner. Electric valves are usually used in air conditioners. The air conditioner can control the opening degree of the electric valve by sending pulse signals or turning the power on and off to achieve the truncation and opening of the flow path; generally, the air conditioner will control the electric valve to be in a set state before stopping operation. The electric valve can also be used to control the flow of refrigerant. For example, when the air conditioner is not working, in order to prevent the residual refrigerant on the indoor side, it is necessary to drive based on the energy storage circuit to timely close the electric valve. However, in actual application, it is often impossible to ensure that when the air conditioner is not working, the energy storage circuit has enough energy to timely close the electric valve, and the safety performance of the air conditioner is insufficient. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a control method, device, equipment and storage medium for an air conditioner, aiming to improve the safety of the air conditioner.

[0005] The technical solution of the embodiments of the present application is realized as follows:

[0006] In a first aspect, embodiments of the present application provide a control method for an air conditioner, the air conditioner includes: an indoor unit, an outdoor unit and an energy storage module, a refrigerant pipeline is provided between the indoor unit and the outdoor unit, and an electric valve is provided on the refrigerant pipeline, and the method includes:

[0007] Obtain a power supply state indicating whether the air conditioner is powered on;

[0008] If it is determined that the air conditioner is powered on based on the power supply state, generate a first indication information, and the first indication information is used to indicate the energy storage module to switch to a charging mode.

[0009] In some embodiments, the method further includes:

[0010] If it is determined that the air conditioner is not powered on based on the power supply state, generate a first control information, and the first control information is used to indicate the energy storage module to switch to a discharging mode to supply power to the electric valve and control the electric valve to close.

[0011] In some embodiments, the air conditioner further includes an electronic expansion valve disposed corresponding to the indoor unit, and the method further includes:

[0012] If it is determined that the air conditioner is powered on based on the power supply state, second indication information is generated, and the second indication information is used to indicate that each of the electronic expansion valves is first reset in sequence, and then the electric valve is reset and the electric valve is closed; or

[0013] It is used to indicate that after the electric valve is first reset and the electric valve is closed, each of the electronic expansion valves is reset in sequence.

[0014] In some embodiments, the method further includes:

[0015] If it is determined that the energy storage module is fully charged, and each of the electronic expansion valves is reset and the electric valve is fully closed, fourth indication information is generated, and the fourth indication information is used to indicate that the electric valve runs to a set opening degree.

[0016] In some embodiments, the method further includes:

[0017] If it is determined that the electric valve runs to the set opening degree, in response to the startup indication information of the air conditioner, second control information is generated, and the second control information is used to control the air conditioner to start running.

[0018] In some embodiments, the air conditioner includes an electronic expansion valve disposed corresponding to the indoor unit, and the method further includes:

[0019] If it is determined that the energy storage module is fully charged, fifth indication information or sixth indication information is generated, and the fifth indication information is used to indicate that the electric valve is first reset and then each of the electronic expansion valves is reset in sequence;

[0020] The sixth indication information is used to indicate that each of the electronic expansion valves is first reset in sequence and then the electric valve is reset.

[0021] In some embodiments, the method further includes:

[0022] If it is determined that the electric valve and each of the electronic expansion valves are reset, in response to the startup instruction of the air conditioner, third control information is generated, and the third control information is used to control the air conditioner to start running.

[0023] In a second aspect, an embodiment of the present application provides a control device for an air conditioner. The air conditioner includes: an indoor unit, an outdoor unit, and an energy storage module. A refrigerant pipeline is provided between the indoor unit and the outdoor unit, and an electric valve is provided on the refrigerant pipeline. The control device includes:

[0024] An acquisition module, configured to acquire a power supply state indicating whether the air conditioner is powered on;

[0025] A determination module, configured to generate first indication information for instructing the energy storage module to switch to a charging mode when it is determined that the air conditioner is powered on based on the power supply state.

[0026] In some embodiments, the control device is disposed on the main board of the outdoor unit of the air conditioner, and the control device includes: a controller, a power supply circuit, and an energy storage circuit; wherein, the power supply circuit is configured to convert and process an external power supply and supply power to the controller, and the energy storage circuit is disposed between the output end of the power supply circuit and the power supply end of the controller.

[0027] In a third aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory for storing a computer program that can run on the processor, wherein,

[0028] The processor is configured to execute the steps of the method described in the first aspect when running the computer program.

[0029] In a fourth aspect, an embodiment of the present application provides a computer storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0030] The technical solution provided by the embodiment of the present application provides a control method for an air conditioner. The air conditioner includes: an indoor unit, an outdoor unit, and an energy storage module. A refrigerant pipeline is provided between the indoor unit and the outdoor unit, and an electric valve is provided on the refrigerant pipeline. The method includes: acquiring a power supply state indicating whether the air conditioner is powered on; generating first indication information for instructing the energy storage module to switch to a charging mode when it is determined that the air conditioner is powered on based on the power supply state. In this way, by providing an energy storage module on the air conditioner and controlling the energy storage module to be charged in advance when the air conditioner is powered on, it is ensured that the energy storage module has sufficient energy to drive the air conditioner to control the electric valve, thereby improving the safety of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic structural diagram of an air conditioner provided by an embodiment of the present application;

[0032] Figure 2 A schematic flowchart of a control method for an air conditioner provided by an embodiment of the present application;

[0033] Figure 3 A schematic structural diagram of an air conditioner control system provided by an application example of the present application;

[0034] Figure 4Schematic structural diagram of the power failure backup power supply system for the air conditioner controller provided by an application example of the present application;

[0035] Figure 5 Schematic structural principle diagram of the energy storage circuit provided by an application example of the present application;

[0036] Figure 6 Schematic working process diagram of the charging BUCK circuit provided by an application example of the present application;

[0037] Figure 7 Schematic flow diagram of the air conditioner power-on control scheme one with an energy storage circuit provided by an application example of the present application;

[0038] Figure 8 Schematic flow diagram of the air conditioner power-on control scheme two with an energy storage circuit provided by an application example of the present application;

[0039] Figure 9 Schematic flow diagram of the air conditioner power-on control scheme three with an energy storage circuit provided by an application example of the present application;

[0040] Figure 10 Schematic structural diagram of the control device of the air conditioner provided by the embodiment of the present application;

[0041] Figure 11 Schematic structural diagram of the electronic device provided by the embodiment of the present application.

[0042] Description of reference numerals

[0043] Indoor unit 1;

[0044] Outdoor unit 2;

[0045] Electric valve 3;

[0046] Electronic expansion valve 4. Detailed description of the specific implementation

[0047] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0049] The embodiment of the present application provides an air conditioner, as Figure 1 shown, the air conditioner includes: an indoor unit 1, an outdoor unit 2 and an energy storage module. A refrigerant pipeline is provided between the indoor unit 1 and the outdoor unit 2, and an electric valve 3 is provided on the refrigerant pipeline. The air conditioner further includes an electronic expansion valve 4 corresponding to the indoor unit 1.

[0050] It should be noted that air conditioners generally come with a power failure backup power supply system, which includes an energy storage module. In the energy storage module, (supercapacitor or lithium battery) + BUCK circuit + BOOST circuit can be adopted. Exemplarily, a control chip is arranged between the energy storage module and the electric valve 3. When the air conditioner is not powered on, for example, when the air conditioner is in a power-off state, the energy storage module can supply power to the control chip to drive the control chip, thereby controlling the opening and closing state of the electric valve 3. To ensure that the electric valve 3 can be fully closed, the energy storage module needs to have sufficient energy to drive the control chip.

[0051] Exemplarily, the operation mode of the energy storage module includes a charging mode and a discharging mode. For example, when the energy storage module uses a supercapacitor for energy storage, when it is determined that the capacity of the supercapacitor is insufficient, the control device will control the energy storage module to switch to the charging mode, and at this time, the BUCK circuit charges the supercapacitor. When it is detected that the power supply is cut off, the control device controls the energy storage module to switch to the discharging mode. At this time, the BOOST circuit discharges outward, and the energy storage module automatically supplies power, so as to ensure that the air conditioner can control the electric valve 3 to perform a closing action. It should be noted that the electric valve 3 is used to control the flow of refrigerant. For example, when the air conditioner power suddenly drops, the air conditioner electronic control, based on the energy storage module, controls the electric valve 3 to close, ensuring that the electric valve is in a closed state and avoiding refrigerant leakage.

[0052] It should be noted that the electronic expansion valve 4 is arranged on the refrigerant branch corresponding to the indoor unit and is used to adjust the refrigerant flow rate flowing through the indoor unit. In actual applications, during the operation of the air conditioner, the flow rate and velocity of the refrigerant in the air conditioner can be controlled by adjusting the opening degree of the electronic expansion valve 4. Usually, a stepper motor is used to adjust the valve opening degree of the electronic expansion valve 4. Specifically, the control of the electronic expansion valve 4 is to control the opening degree of the electronic expansion valve 4 according to the received pulse signal. The electronic expansion valve 4 generates a magnetic field by passing an electric current through a coil and acts on the valve needle to drive the valve needle to rotate.

[0053] It should be noted that the electronic expansion valve 4 is an open-loop control. Open-loop control is a control method that directly applies a control signal to the controlled object without a feedback control signal to achieve the expected effect. In some embodiments, since the electronic expansion valve 4 is driven by a stepper motor, and there is a step loss phenomenon in the stepper motor, this may cause a difference between the actual position of the valve of the electronic expansion valve 4 and the position to be achieved by the theoretical design. Therefore, each time the power is turned on, the electronic expansion valve 4 needs to be "zeroed" and reset. Correspondingly, to improve the reliability of the electric valve 3, the electric valve 3 also needs to be "zeroed" and reset.

[0054] The embodiment of the present application also provides a control method for an air conditioner, and the method includes the following steps:

[0055] Step 210: Obtain the power supply state indicating whether the air conditioner is powered on.

[0056] Here, for the air conditioner, when the power supply can supply power normally, the air conditioner is in the powered-on power supply state. Correspondingly, after the air conditioner is powered on, the air conditioner can be in the on state or the standby state. When the power supply cannot supply power normally, the air conditioner is in the non-powered-on power supply state, and the air conditioner is in the off state. Exemplarily, the air conditioner can obtain the power supply state based on a detection circuit. For example, it is determined whether the power supply is connected based on the detected voltage and / or current signal, and then it is determined whether the air conditioner is powered on.

[0057] Step 220: If it is determined that the air conditioner is powered on based on the power supply state, generate first indication information, where the first indication information is used to indicate that the energy storage module switches to the charging mode.

[0058] Here, based on this power supply state, if it is determined that the air conditioner is powered on, generate first indication information, where the first indication information is used to indicate that the energy storage module switches to the charging mode. Exemplarily, at this time, the charging BUCK circuit of the energy storage module charges the super capacitor or lithium battery of the energy storage circuit.

[0059] In this way, by setting an energy storage module on the air conditioner and controlling the energy storage module to be charged in advance when the air conditioner is in the powered-on state, it is ensured that the energy storage module has sufficient energy to drive the air conditioner to control the electric valve, thereby improving the safety of the air conditioner.

[0060] In some embodiments, the method further includes:

[0061] If it is determined that the air conditioner is not powered on based on the power supply state, generate first control information, where the first control information is used to indicate that the energy storage module switches to the discharging mode to supply power to the electric valve and control the electric valve to close.

[0062] Here, based on this power supply state, if it is determined that the air conditioner is not powered on, which indicates that the air conditioner is not powered on at this time and the air conditioner may be in a power-off state, generate first control information, where the first control information is used to indicate that the energy storage module switches to the discharging mode to supply power to the electric valve and control the electric valve to close.

[0063] Exemplarily, when the air conditioner is not powered on and is in a power-off state, in order to avoid leakage of the refrigerant in the air conditioner, it is necessary to control the electric valve to close. In order to provide the energy to control the electric valve to close, at this time, the energy storage module switches to the discharging mode, and the BOOST circuit discharges to supply power to the electric valve, thereby avoiding leakage of the refrigerant and improving the safety of the air conditioner.

[0064] In some embodiments, the air conditioner further includes an electronic expansion valve corresponding to the indoor unit, and the method further includes:

[0065] If it is determined that the air conditioner has been powered on based on the power supply state, then second indication information is generated, and the second indication information is used to instruct each electronic expansion valve to perform a reset in sequence first, and then the electric valve performs a reset and closes the electric valve; or

[0066] is used to instruct the electric valve to perform a reset and close the electric valve first, and then each electronic expansion valve performs a reset in sequence.

[0067] Here, if it is determined that the air conditioner has been powered on based on the power supply state, then second indication information is generated, and the second indication information is used to instruct each electronic expansion valve to perform a reset in sequence first, and then the electric valve performs a reset and closes the electric valve; or is used to instruct the electric valve to perform a reset and close the electric valve first, and then each electronic expansion valve performs a reset in sequence. The first indication information and the second indication information here are both generated simultaneously after it is determined that the air conditioner has been powered on, that is, the energy storage module switches to the charging mode and the reset operations of the electronic expansion valve and the electric valve are executed in parallel. In this way, the control duration is saved and the operation efficiency is improved.

[0068] Exemplarily, when it is determined that the air conditioner has been powered on, at this time, it is necessary to perform a reset on both the electronic expansion valve and the electric valve based on the power supply to facilitate subsequent control of the electronic expansion valve and the electric valve and ensure the operation reliability of the electronic expansion valve and the electric valve. In the embodiments of the present application, in order to reduce the power of the external power supply, the electronic expansion valve and the electric valve do not work simultaneously, and in order to further reduce the power of the external power supply, compared with resetting multiple electronic expansion valves simultaneously, the electronic expansion valves are controlled to perform a reset in sequence. Therefore, second indication information is generated, and the second indication information is used to instruct each electronic expansion valve to perform a reset in sequence first, and then the electric valve performs a reset and closes the electric valve; or is used to instruct the electric valve to perform a reset and close the electric valve first, and then each electronic expansion valve performs a reset in sequence.

[0069] Here, the specific steps of the reset control of the electronic expansion valve include: (1) Rotate the valve core clockwise to the maximum opening position; (2) Rotate the valve core counterclockwise to the minimum opening position; (3) Rotate the valve core clockwise to the intermediate position (the opening degree required for standby).

[0070] Here, the specific steps of the reset control of the electric valve include: (1) Rotate the valve core clockwise to the maximum opening position; (2) Rotate the valve core counterclockwise to the minimum opening position; (3) Rotate the valve core clockwise to the intermediate position (the opening degree required for standby).

[0071] Here, controlling the electric valve to close can avoid the refrigerant leakage problem caused by sudden power-off when the energy storage module is in the charging mode after power-on. Because at this time, the energy storage module may not have sufficient energy to control the electric valve to close. Therefore, the electric valve is reset first and then controlled to close.

[0072] In some embodiments, the method further includes:

[0073] Determine that the energy storage module has completed charging, and each electronic expansion valve has been reset and the electric valve has been closed, then generate fourth indication information, where the fourth indication information is used to indicate that the electric valve runs to a set opening degree.

[0074] Here, when it is determined that the energy storage module has completed charging, the energy storage module already has sufficient energy to control the electric valve to close at this time. When each electronic expansion valve has been reset, the positions of each electronic expansion valve are accurate at this time, which is beneficial to the subsequent refrigerant flow regulation of the air conditioner and ensures the smooth operation of the air conditioner. The completion of the closing of the electric valve can avoid the refrigerant leakage problem caused by sudden power failure. In response to the completion of the charging of the energy storage module, and the completion of the reset of each electronic expansion valve and the completion of the closing of the electric valve, fourth indication information is generated, where the fourth indication information is used to indicate that the electric valve runs to a set opening degree. The set opening degree here can be the standby required opening degree as described above, that is, the valve core of the electric valve is rotated clockwise to the middle position.

[0075] In this way, by running the electric valve to the set opening degree, the balance of the refrigerant in the air conditioner can be ensured to respond to subsequent air conditioner operation instructions.

[0076] In some embodiments, the method further includes:

[0077] Determine that the electric valve runs to the set opening degree, and then in response to the startup indication information of the air conditioner, generate second control information, where the second control information is used to control the air conditioner to start running.

[0078] Here, when it is determined that the electric valve runs to the set opening degree, where the set opening degree can be the startup required opening degree, then in response to the startup indication information of the air conditioner, generate second control information, where the second control information is used to control the air conditioner to start running. In this way, after the power is on and the air conditioner is connected to the power supply, before the air conditioner is started, the charging of the energy storage module is realized. During the subsequent operation of the air conditioner, if the air conditioner is powered off, there is no need to consider the energy state of the energy storage module, which ensures that the energy storage module has sufficient energy to control the electric valve to close, avoids refrigerant leakage, and improves the safety of the air conditioner. At the same time, the electronic expansion valves are reset in sequence or the electric valve is reset, which saves time and avoids the reset operation during the subsequent operation of the air conditioner after startup, improving the user experience. In addition, by resetting the electronic expansion valve and the electric valve successively and resetting the electronic expansion valves in sequence, the power of the power supply is reduced, and the minimization of the power of the power supply is realized.

[0079] In some embodiments, the air conditioner includes an electronic expansion valve corresponding to the indoor unit, and the method further includes:

[0080] When it is determined that the energy storage module has completed charging, the fifth indication information or the sixth indication information is generated. The fifth indication information is used to indicate that after the electric valve is reset first, each electronic expansion valve is reset in sequence.

[0081] The sixth indication information is used to indicate that after each electronic expansion valve is reset in sequence first, the electric valve is reset.

[0082] Here, the fifth indication information or the sixth indication information is generated after it is determined that the energy storage module has completed charging. The reset operations of the electronic expansion valve and the electric valve are in a serial relationship with the charging of the energy storage circuit, that is, only after the energy storage module has completed charging, the electronic expansion valve and the electric valve are reset. In this way, compared with indicating that the energy storage module switches to the charging mode and the electronic expansion valve or the electric valve is reset simultaneously after the air conditioner is powered on, the power of the power supply is reduced, the cost of the power supply is saved, and at the same time, the energy storage module also has sufficient energy to execute the closing action of the electric valve.

[0083] Here, the fifth indication information is used to indicate that after the electric valve is reset first, each electronic expansion valve is reset in sequence. In this way, the electric valve is reset first, which can ensure the balance of the refrigerant in the system and can immediately respond to the start-up instruction after the electronic expansion valve completes the reset action.

[0084] Here, the sixth indication information is used to indicate that after each electronic expansion valve is reset in sequence first, the electric valve is reset. In this way, by resetting the electric valve later, refrigerant leakage can be avoided and the safety is higher.

[0085] In some embodiments, the method further includes:

[0086] When it is determined that the electric valve and each electronic expansion valve have completed resetting, in response to the start-up instruction of the air conditioner, the third control information is generated. The third control information is used to control the air conditioner to start running.

[0087] Here, when it is determined that the electric valve and each electronic expansion valve have completed resetting, in response to the start-up indication information of the air conditioner, the second control information is generated. The second control information is used to control the air conditioner to start running. In this way, after the air conditioner is powered on and connected to the power supply, before the air conditioner is started, the charging of the energy storage module is realized. During the subsequent operation of the air conditioner, if the air conditioner is powered off, there is no need to consider the energy state of the energy storage module, which ensures that the energy storage module has sufficient energy to control the electric valve to close, avoids refrigerant leakage, and improves the safety of the air conditioner.

[0088] In addition, after determining that the energy storage circuit is fully charged, at this time the energy storage circuit already has sufficient energy to control the electric valve to close, and then the electronic expansion valve and the electric valve are reset in sequence, improving the safety of the system and avoiding resetting during the subsequent operation of the air conditioner after startup, enhancing the user experience. At the same time, by resetting the electronic expansion valve and the electric valve successively and resetting the electronic expansion valve in sequence, the power of the power supply is reduced, achieving the minimization of the power of the power supply.

[0089] Next, a detailed description of the embodiments of the present application will be given in conjunction with an application example.

[0090] In the air conditioning field, a stepper motor electronic expansion valve is usually used for refrigerant flow control. The control of the electronic expansion valve is to control the opening of the expansion valve according to the received pulse signal. The electronic expansion valve generates a magnetic field through the current in the coil and acts on the valve needle to drive the valve needle to rotate. The electronic expansion valve is an open-loop control and needs to perform "zeroing" reset control every time it is powered on. When the electronic expansion valve works, it will generate a large pulsed current.

[0091] In order to meet the requirement that the electric valve of the outdoor unit can be closed when the air conditioner is powered off, the air conditioner needs to be equipped with an energy storage circuit, and at the same time ensure that the energy storage has enough energy to close the electric valve.

[0092] Based on this, this application example provides an air conditioning control system, as Figure 3 shown. The control system includes:

[0093] 1. An outdoor heat exchanger (i.e., the aforementioned outdoor unit);

[0094] 2. Indoor units 1...n (i.e., the aforementioned indoor units);

[0095] 3. An electronic expansion valve; the electronic expansion valve is correspondingly arranged with indoor units 1...n and is arranged on the refrigerant branch corresponding to the indoor unit, and is used to adjust the refrigerant flow rate flowing through the indoor unit.

[0096] 4. An electric valve; the electric valve is arranged on the refrigerant pipeline between the indoor unit and the outdoor unit and is used to control the circulation of the refrigerant.

[0097] 5. A four-way valve; the states of the four-way valve include: a first state for flowing the refrigerant of the compressor to the first heat exchanger in the outdoor unit first and a second state for flowing the refrigerant of the compressor to the second heat exchanger in the indoor unit first. The four-way valve controls the air conditioner to enter the heating mode or the cooling mode by switching between the first state and the second state.

[0098] 6. A compressor; the compressor is the heart of the air conditioning system and is used to compress and transport high-temperature and high-pressure gaseous refrigerant. The compressor is connected to one end of the four-way valve.

[0099] 7. Check valve; used to ensure that the refrigerant can only flow in one direction, preventing backflow and damage to the air-conditioning system. Because before the refrigerant flows into the compressor, it needs to pass through air-conditioning components such as the evaporator and condenser. If the refrigerant flows back, it will cause malfunctions in the air-conditioning system and affect the refrigeration effect of the air conditioner.

[0100] 8. Gas-liquid separator; to separate a small amount of refrigerant that has not been completely evaporated, ensuring that the compressor does not suck in liquid refrigerant and cause liquid hammer phenomenon, thus avoiding damage to the compressor due to liquid hammer phenomenon.

[0101] This application example provides a backup power supply system for the power failure of the air-conditioning controller, as Figure 4 shown. The backup power supply system for power failure includes a control chip, a power supply, a controller power supply circuit, a power detection circuit, an energy storage circuit (i.e., the aforementioned energy storage circuit), a valve body control circuit, and valve bodies (valve body 1 and valve body 2). The controller power supply circuit is used to supply power to the control chip and includes: a power supply, a rectifier circuit, a filter circuit, a switching power supply circuit, and a controller power supply voltage stabilizing circuit. The controller power supply voltage stabilizing circuit is used to stabilize the input voltage and then output it to the control chip. The output voltage Vcc of the controller power supply voltage stabilizing circuit = 5V & 12V. When power is turned on, the switching power supply circuit (i.e., the aforementioned power supply) supplies power to the control chip through the controller power supply voltage stabilizing circuit. The control chip can send valve body control signals to valve body 1 and / or valve body 2 through the valve body control circuit to achieve corresponding valve body operation control for valve body 1 and / or 2.

[0102] Assume that in Figure 4 , valve body 1 is an electronic expansion valve and valve body 2 is an electric valve. Here, the valve body operation control can include: "zeroing" reset control (i.e., the aforementioned reset). The "zeroing" reset control for each valve body is as follows:

[0103] 1. "Zeroing" reset control for the electronic expansion valve: The specific operation steps are as follows:

[0104] (1) Rotate the valve core clockwise to the maximum opening position;

[0105] (2) Rotate the valve core counterclockwise to the minimum opening position;

[0106] (3) Rotate the valve core clockwise to the middle position (opening degree required for standby);

[0107] 2. "Zeroing" reset control for the electric valve: The specific operation steps are as follows:

[0108] (1) Rotate the valve core clockwise to the maximum opening position;

[0109] (2) Rotate the valve core counterclockwise to the minimum opening position;

[0110] (3) Rotate the valve core clockwise to the middle position (standby required opening).

[0111] Here, both ends of the energy storage circuit are connected to the controller power supply voltage stabilization circuit. When the air conditioner is not powered on, for example, in the power-off state, the energy storage circuit can generate energy and supply power to the control chip based on this controller power supply voltage stabilization circuit to ensure that the control chip has sufficient energy to control the electric valve to close.

[0112] The energy storage circuit uses a super capacitor or a lithium battery + BUCK circuit + BOOST to form an energy storage circuit system. The energy storage circuit is connected in parallel to the controller power supply circuit. When a power failure is detected, the energy storage circuit will automatically be incorporated into the air conditioner controller power supply network for power supply, and the air conditioner controller program will enter the valve body closing operation.

[0113] In addition, the energy storage circuit includes a charging mode and a discharging mode. For example, when the energy storage circuit uses a super capacitor for energy storage, when it is determined that the capacity of the super capacitor is insufficient, the control chip will control the energy storage circuit to switch to the charging mode, and at this time the BUCK circuit charges the super capacitor. When a power failure is detected, the control device controls the energy storage circuit to switch to the discharging mode, and at this time the BOOST circuit discharges externally, and the energy storage circuit automatically supplies power, so as to be able to control the electric valve to perform the closing action.

[0114] Assume that the energy storage circuit adopts the structure of a super capacitor + BUCK circuit + BOOST. The schematic diagram of the structural principle of the energy storage circuit is as Figure 5 shown, and the specific control principle is described as follows:

[0115] The energy storage circuit consists of a super capacitor, a BUCK circuit, and a BOOST circuit. Among them, the super capacitor is selected according to the actual energy of the product; the main power topology implementation method is a combination of a BUCK circuit and a BOOST circuit, where VIN is connected to the 12V bus and VOUT is connected to the super capacitor.

[0116] For the charging BUCK, compared with the constant voltage output application, due to the large capacity of the super capacitor and the slow voltage change, it is impossible to provide voltage feedback quickly during the startup process. At the same time, during the long charging process, to prevent the charging current of the super capacitor from being too large, exceeding the power supply capacity of 12V - Vin and pulling down the input 12V - Vin switching power supply voltage, or causing the switching power supply to protect, it is necessary to control the charging current to be constant; the schematic diagram of the working process of its charging BUCK is as Figure 6 shown, and the specific implementation process is as follows:

[0117] When the energy storage circuit enters the charging mode and starts charging, the BUCK circuit starts up slowly and conducts constant current charging for the BUCK circuit. At this time, it is necessary to detect the charging voltage Vcap of the BUCK circuit and compare Vcap with Vset. Here, Vset is the target charging voltage, which is set according to actual usage needs. However, attention should be paid to the withstand voltage specification of the selected supercapacitor, and sufficient voltage derating of the supercapacitor should be reserved. If Vcap is less than Vset, it is necessary to control the charging voltage of the BUCK circuit to be equal to Vset and keep the charging current constant. When Vcap is equal to Vset, trickle voltage stabilization charging of the BUCK circuit is achieved.

[0118] Based on this, this application example provides an air conditioner power-on control method with an energy storage circuit, which specifically includes three control schemes (Scheme One, Scheme Two, and Scheme Three). The specific content is as follows:

[0119] Scheme One: Refer to Figure 7 , in Scheme One, during the process from initial power-on to the user turning on the machine, the energy storage circuit is charged, which takes a short time. At the same time, it is ensured that when the power is off, the energy storage circuit has enough energy to perform the closing action of the electric valve. In addition, the charging of the energy storage circuit and the reset of the electronic expansion valve are performed simultaneously (that is, the charging of the energy storage circuit and the reset of the electronic expansion valve are executed in parallel), which requires increasing the power of the switching power supply. However, at the same time, the electronic expansion valves are reset one by one, which also reduces the power required by the switching power supply. The specific implementation steps are as follows:

[0120] Step 701: The air conditioner is powered on.

[0121] In practical applications, obtain the power supply status indicating whether the air conditioner is powered on;

[0122] Based on the power supply status, it is determined that the air conditioner is powered on, and then the first indication information and the second indication information are generated. The first indication information is used to indicate that the energy storage circuit switches to the charging mode, and the second indication information is used to first reset each electronic expansion valve in sequence, and then the electric valve is reset and closed.

[0123] Step 702: The switching power supply works.

[0124] In practical applications, when the air conditioner is powered on, the switching power supply works normally, that is, it normally supplies power to the controller's regulated power supply circuit.

[0125] Step 703: The controller power supply outputs normally.

[0126] In practical applications, the switching power supply supplies power to the controller's regulated power supply circuit, and the controller power supply outputs normally.

[0127] Step 704: The controller main control MCU works normally.

[0128] In actual applications, when the air conditioner is powered on, the air conditioner power supply voltage stabilization circuit normally outputs current to the controller main control MCU, and the controller main control MCU works normally at this time.

[0129] When the power is initially turned on, the energy storage circuit is charged and the electronic expansion valve is reset simultaneously, that is, based on the first indication information and the second indication information, step 705 and step 706 are executed simultaneously.

[0130] Step 705: The electronic expansion valve is reset and is in the standby required opening.

[0131] Based on the second indication information, the controller main control MCU controls the electronic expansion valve to reset in sequence based on the control circuit of the electronic expansion valve, and is in the standby required opening degree. After the electronic expansion valve is reset, step 707 is executed.

[0132] Step 706: The energy storage circuit is charged.

[0133] Based on the first indication information, the controller main control MCU controls the energy storage circuit to enter the charging mode, the charging BUCK circuit of the energy storage circuit works to charge, and step 708 is executed.

[0134] Step 707: Reset the electric valve to zero and put it in the closed position.

[0135] After it is determined that the electronic expansion valves have been reset in sequence, the electric valve is reset to zero and is in a closed position. Here, the electric valve is reset to remain in the "minimum opening position", i.e., the closed state, to avoid refrigerant leakage caused by a sudden power failure during the process from power-on to startup, when the energy storage circuit does not have enough energy to execute the closing of the electric valve. After the zero reset is completed, step 709 is executed.

[0136] Step 708: Determine whether the energy storage circuit has completed charging. If so, execute step 710; if not, execute step 706.

[0137] In actual applications, if the energy storage circuit is based on a supercapacitor for energy storage, the maximum chargeable voltage capacity of the supercapacitor can be used as a judgment threshold, and the voltage of the supercapacitor in the energy storage circuit is actually detected. The detected voltage value is compared with the aforementioned judgment threshold to determine whether the energy storage circuit is fully charged. If so, execute step 710, and if not, execute step 706.

[0138] Step 709: Determine whether the electronic expansion valve and the electric valve have completed step 705 and step 707; if so, execute step 710; if not, execute step 705 and / or 707.

[0139] Step 710: Open the electric valve to the required opening.

[0140] In practical applications, when it is determined that the energy storage circuit has completed charging, and each electronic expansion valve has completed resetting and the electric valve has completed closing, fourth indication information is generated, and the fourth indication information is used to indicate that the electric valve runs to a set opening degree.

[0141] Exemplarily, before performing step 709, it is necessary to determine that the energy storage circuit has completed charging, and the electronic expansion valve and the electric valve have completed steps 705 and 707. When it is determined that the energy storage circuit has completed charging, and each electronic expansion valve has completed resetting and the electric valve has completed closing, fourth indication information is generated, which is used to indicate that the electric valve runs to a set opening degree. Here, the set opening degree can be the opening degree required for startup to execute step 710.

[0142] Step 711: Respond to the startup instruction.

[0143] In practical applications, when it is determined that the electric valve runs to the set opening degree, second control information is generated in response to the startup indication information of the air conditioner, and the second control information is used to control the air conditioner to start running.

[0144] Step 712: End.

[0145] Solution 2: Refer to Figure 8 , in Solution 2, during the process from initial power-on to user startup, the energy storage circuit is charged, which takes a short time. At the same time, it is ensured that when the power is off, the energy storage circuit has enough energy to perform the closing action of the electric valve. The electronic expansion valves are reset to zero in sequence, which also reduces the power required by the switching power supply. In addition, first, the energy storage circuit is charged. After the energy storage circuit is fully charged, the electric valve first performs a reset action (that is, the energy storage circuit charging and the electric valve reset are executed serially), and then the electronic expansion valve performs a reset action. Compared with Solution 1, the time required for serial execution is relatively long, but at the same time, the power of the switching power supply is greatly reduced, realizing the minimum power design of the switching power supply, saving the cost of the switching power supply, and opening the electric valve first can ensure the balance of the refrigerant in the system and can immediately respond to the startup instruction after the electronic expansion valve completes the reset action. The specific implementation steps are as follows:

[0146] Step 801: The air conditioner is powered on.

[0147] In practical applications, the power supply state indicating whether the air conditioner is powered on is obtained;

[0148] Based on the power supply state, when it is determined that the air conditioner is powered on, first indication information is generated, and the first indication information is used to indicate that the energy storage module switches to the charging mode.

[0149] Step 802: The switching power supply works.

[0150] In practical applications, when the air conditioner is powered on, the switching power supply works normally, that is, it normally supplies power to the voltage stabilizing circuit of the controller power supply.

[0151] Step 803: The controller power supply outputs normally.

[0152] In practical applications, the switching power supply supplies power to the controller power supply voltage stabilization circuit, and the controller power supply outputs normally.

[0153] Step 804: The main control MCU of the controller operates normally.

[0154] In practical applications, when the air conditioner is powered on, the air conditioner power supply voltage stabilization circuit outputs current to the main control MCU of the controller normally. At this time, the main control MCU of the controller operates normally. When initially powered on, the energy storage circuit starts to charge, that is, step 805 is executed based on the first indication information.

[0155] Step 805: The energy storage circuit charges.

[0156] Based on the first indication information, the main control MCU of the controller controls the energy storage circuit to enter the charging mode. The charging BUCK circuit of the energy storage circuit works to charge and execute step 806.

[0157] Step 806: Determine whether the energy storage circuit has completed charging; if so, execute step 807, if not, execute step 805.

[0158] In practical applications, when it is determined that the energy storage circuit has completed charging, the fifth indication information is generated. The fifth indication information is used to indicate that the electric valve is first reset, and then each electronic expansion valve is reset in sequence.

[0159] Exemplarily, if the energy storage circuit stores energy based on a super capacitor, the maximum voltage capacity that the super capacitor can be charged to can be used as the judgment threshold. The voltage of the super capacitor in the energy storage circuit is actually detected, and based on the comparison between the detected voltage value and the foregoing judgment threshold, it is determined whether the energy storage circuit has completed charging. If so, execute step 807, if not, execute step 805.

[0160] Step 807: The electric valve returns to zero and resets to the standby required opening degree.

[0161] In practical applications, based on the fifth indication information, the electric valve is first instructed to return to zero and reset to the standby required opening degree.

[0162] Step 808: The electronic expansion valve returns to zero and resets to the standby required opening degree.

[0163] In practical applications, after the electric valve first completes the return-to-zero reset, the electronic expansion valve performs the return-to-zero reset and is in the standby required opening degree.

[0164] Step 809: Respond to the startup instruction.

[0165] Determine that the electric valve and each electronic expansion valve have been reset, and then, in response to the startup instruction of the air conditioner, generate third control information, which is used to control the air conditioner to start running.

[0166] Step 810: End.

[0167] Solution 3: Refer to Figure 9 , in Solution 3, during the process from initial power-on to user startup, the energy storage circuit is charged, which takes a short time. At the same time, it is ensured that when the power is off, the energy storage circuit has enough energy to perform the closing action of the electric valve. The electronic expansion valves are reset to zero in sequence, which also reduces the power required by the switching power supply. In addition, first, the energy storage circuit is charged. After the energy storage circuit is fully charged, the electronic expansion valves first perform the reset action (that is, the charging of the energy storage circuit and the reset of the electronic expansion valves are executed serially), and then the electronic expansion valves perform the reset action. Compared with Solution 1, although the time required for serial execution is relatively long, at the same time, the power of the switching power supply is greatly reduced, realizing the minimum power design of the switching power supply, saving the cost of the switching power supply, and the later opening of the electric valve can improve safety. That is, although the response to the startup instruction is slower than that of Solution 2, the electric valve is only opened when there is a startup requirement, preventing the refrigerant from entering the indoor unit. The specific implementation steps are as follows:

[0168] Step 901: The air conditioner is powered on.

[0169] In practical applications, obtain the power supply state indicating whether the air conditioner is powered on;

[0170] Based on the power supply state, determine that the air conditioner is powered on, and then generate first indication information, which is used to indicate that the energy storage module switches to the charging mode.

[0171] Step 902: The switching power supply works.

[0172] In practical applications, when the air conditioner is powered on, the switching power supply works normally, that is, it normally supplies power to the voltage stabilizing circuit of the controller power supply.

[0173] Step 903: The controller power supply outputs normally.

[0174] In practical applications, the switching power supply supplies power to the voltage stabilizing circuit of the controller power supply, and the controller power supply outputs normally.

[0175] Step 904: The main control MCU of the controller works normally.

[0176] In practical applications, when the air conditioner is powered on, the voltage stabilizing circuit of the air conditioner power supply outputs current to the main control MCU of the controller normally, and at this time, the main control MCU of the controller works normally. When initially powered on, control the energy storage circuit to start charging, that is, based on the first indication information, execute Step 905.

[0177] Step 905: The energy storage circuit is charged.

[0178] Based on the first indication information, the controller main control MCU controls the energy storage circuit to enter the charging mode, the charging BUCK circuit of the energy storage circuit works to charge, and step 906 is executed.

[0179] Step 906: Determine whether the energy storage circuit has completed charging; if so, execute step 907; if not, execute step 905.

[0180] In practical applications, when it is determined that the energy storage circuit is fully charged, sixth indication information is generated, and the sixth indication information is used to instruct each electronic expansion valve to reset in sequence first, and then the electric valve to reset.

[0181] Exemplarily, if the energy storage circuit is based on a supercapacitor for energy storage, the maximum chargeable voltage capacity of the supercapacitor can be used as a judgment threshold, and the voltage of the supercapacitor in the energy storage circuit is actually detected. The detected voltage value is compared with the aforementioned judgment threshold to determine whether the energy storage circuit is fully charged. If so, execute step 907, and if not, execute step 905.

[0182] Step 907: The electronic expansion valve is reset to zero and is in the standby required opening.

[0183] In practical applications, the electronic expansion valves are instructed to reset to zero in sequence and be in the required standby opening.

[0184] Step 908: The electric valve is reset to zero and is in the standby state with the required opening.

[0185] In actual applications, the electronic expansion valve completes the zero reset first, and then the electric valve performs the zero reset and is in the standby required opening.

[0186] Step 909: Respond to the power-on instruction.

[0187] When it is determined that the electric valve and each electronic expansion valve have been reset, third control information is generated in response to a power-on instruction of the air conditioner. The third control information is used to control the start-up operation of the air conditioner.

[0188] Step 910: End.

[0189] Thus, this application example provides the control logic and processing scheme of the energy storage circuit, electronic expansion valve and electric valve after the air conditioner is powered on and before it is turned on, (1) ensuring that when the power is off, the energy storage circuit has enough energy to execute the closing action of the electric valve, avoiding the leakage of refrigerant and improving the safety of the air conditioner. At the same time, (2) the power minimization design of the switching power supply is realized.

[0190] like Figure 10As shown in the figure, the control device 1000 of the air conditioner includes: an acquisition module 1010 and a determination module 1020. The acquisition module 1010 is used to acquire the power supply state indicating whether the air conditioner is powered on; the determination module 1020 is further used to generate a first indication message if it is determined that the air conditioner is powered on based on the power supply state, and the first indication message is used to indicate that the energy storage module switches to the charging mode.

[0191] In some embodiments, the determination module 1020 is further used to generate a first control message if it is determined that the air conditioner is not powered on based on the power supply state, and the first control message is used to indicate that the energy storage module switches to the discharging mode to supply power to the electric valve and control the electric valve to close.

[0192] In some embodiments, the air conditioner further includes an electronic expansion valve corresponding to the indoor unit. The determination module 1020 is further used to generate a second indication message if it is determined that the air conditioner is powered on based on the power supply state, and the second indication message is used to indicate that each electronic expansion valve first resets in sequence, and then the electric valve resets and closes the electric valve; or

[0193] is used to indicate that the electric valve first resets and closes the electric valve, and then each electronic expansion valve resets in sequence.

[0194] In some embodiments, the determination module 1020 is further used to generate a fourth indication message if it is determined that the energy storage module has completed charging, and each electronic expansion valve has completed resetting and the electric valve has completed closing, and the fourth indication message is used to indicate that the electric valve runs to the set opening.

[0195] In some embodiments, the determination module 1020 is further used to generate a second control message in response to the start instruction of the air conditioner if it is determined that the electric valve runs to the set opening, and the second control message is used to control the air conditioner to start running.

[0196] In some embodiments, the air conditioner further includes a generation module 1030, which is used to generate a fifth indication message or a sixth indication message if it is determined that the energy storage module has completed charging. The fifth indication message is used to indicate that the electric valve first resets and then each electronic expansion valve resets in sequence; the sixth indication message is used to indicate that each electronic expansion valve first resets in sequence and then the electric valve resets.

[0197] In some embodiments, the generation module 1030 is further used to generate a third control message in response to the start instruction of the air conditioner if it is determined that the electric valve and each electronic expansion valve have completed resetting, and the third control message is used to control the air conditioner to start running.

[0198] In practical applications, the acquisition module 1010, the determination module 1020, and the generation module 1030 can be implemented by a processor (also known as a controller) in the control device of the air conditioner. Of course, the processor needs to run the computer program in the memory to implement its functions.

[0199] In some embodiments, the control device is disposed on the main board of the outdoor unit of the air conditioner. The control device includes: a controller, a power supply circuit, and an energy storage circuit. Among them, the power supply circuit is used to convert and process an external power supply and supply power to the controller, and the energy storage circuit is disposed between the output end of the power supply circuit and the power supply end of the controller.

[0200] It should be noted that: when the control device of the air conditioner provided in the above embodiments controls the air conditioner, only the above division of each program module is used for illustration. In actual applications, the above processing can be allocated to different program modules according to needs, that is, the internal structure of the device is divided into different program modules to complete all or part of the above-described processing. In addition, the control device of the air conditioner provided in the above embodiments and the embodiments of the control method of the air conditioner belong to the same concept. For the specific implementation process, please refer to the method embodiments, which will not be elaborated here.

[0201] Based on the hardware implementation of the above program modules, and in order to implement the method of the embodiments of the present application, the embodiments of the present application further provide an electronic device. Figure 11 Only the exemplary structure of the electronic device is shown rather than all structures, and part or all of the structures shown can be implemented according to needs Figure 11 shown.

[0202] As Figure 11 shown, the electronic device 1100 provided in the embodiments of the present application includes: at least one processor 1101, a memory 1102, a user interface 1103, and at least one network interface 1104. Each component in the electronic device 1100 is coupled together through a bus system 1105. It can be understood that the bus system 1105 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1105 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear illustration, in Figure 11 all kinds of buses are labeled as the bus system 1105.

[0203] Among them, the user interface 1103 may include a display, a keyboard, a mouse, a trackball, a click wheel, a button, a button, a touchpad, or a touch screen, etc.

[0204] The memory 1102 in the embodiments of the present application is used to store various types of data to support the operation of the electronic device. Examples of these data include: any computer program for operating on the electronic device.

[0205] The control method of the air conditioner disclosed in the embodiments of the present application can be applied to or implemented by the processor 1101. The processor 1101 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the control method of the air conditioner can be completed by the integrated logic circuit of the hardware in the processor 1101 or the instructions in the form of software. The above-mentioned processor 1101 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 1101 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. Combining the steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed and completed by the hardware decoding processor, or executed and completed by the combination of the hardware and software modules in the decoding processor. The software module may be located in the storage medium, and this storage medium is located in the memory 1102. The processor 1101 reads the information in the memory 1102 and combines its hardware to complete the steps of the control method of the air conditioner provided in the embodiments of the present application.

[0206] In an exemplary embodiment, the electronic device can be implemented by one or more application-specific integrated circuits (ASICs, Application Specific Integrated Circuits), DSPs, programmable logic devices (PLDs, Programmable Logic Devices), complex programmable logic devices (CPLDs, Complex Programmable Logic Devices), field programmable gate arrays (FPGAs, Field Programmable Gate Arrays), general-purpose processors, controllers, microcontroller units (MCUs, Micro Controller Units), microprocessors (Microprocessors), or other electronic components, and is used to execute the foregoing method.

[0207] It can be understood that the memory 1102 can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory), an electrically erasable programmable read-only memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), a ferromagnetic random access memory (FRAM, ferromagnetic random access memory), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM, Compact Disc Read-Only Memory); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM, Random Access Memory), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as a static random access memory (SRAM, Static Random Access Memory), a synchronous static random access memory (SSRAM, Synchronous Static Random Access Memory), a dynamic random access memory (DRAM, Dynamic Random Access Memory), a synchronous dynamic random access memory (SDRAM, Synchronous Dynamic Random Access Memory), a double data rate synchronous dynamic random access memory (DDR SDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), an enhanced synchronous dynamic random access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), a sync link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), a direct rambus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present application are intended to include, but not limited to, these and any other suitable types of memories.

[0208] In an exemplary embodiment, the embodiments of the present application also provide a storage medium, namely a computer storage medium, specifically a computer-readable storage medium. For example, it includes a memory 1102 storing a computer program, and the above computer program can be executed by a processor 1101 of an electronic device to complete the steps of the method in the embodiments of the present application. The computer-readable storage medium can be a memory such as ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0209] It should be noted that: "first", "second", etc. are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence.

[0210] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0211] The above are only specific implementation manners of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method for an air conditioner, characterized in that, the air conditioner includes: an indoor unit, an outdoor unit, and an energy storage module. A refrigerant pipeline is provided between the indoor unit and the outdoor unit, and an electric valve is provided on the refrigerant pipeline. The method includes: Obtaining a power supply state indicating whether the air conditioner is powered on; If it is determined that the air conditioner is powered on based on the power supply state, then generate a first indication message, where the first indication message is used to indicate that the energy storage module switches to a charging mode.

2. The method according to claim 1, characterized in that, the method further includes: If it is determined that the air conditioner is not powered on based on the power supply state, then generate a first control message, where the first control message is used to indicate that the energy storage module switches to a discharging mode to supply power to the electric valve and control the electric valve to close.

3. The method according to claim 1, characterized in that, the air conditioner further includes an electronic expansion valve provided corresponding to the indoor unit. The method further includes: If it is determined that the air conditioner is powered on based on the power supply state, then generate a second indication message, where the second indication message is used to indicate that each of the electronic expansion valves first performs a reset in sequence, and then the electric valve performs a reset and closes the electric valve; or is used to indicate that the electric valve first performs a reset and closes the electric valve, and then each of the electronic expansion valves performs a reset in sequence.

4. The method according to claim 3, characterized in that, the method further includes: Determining that the energy storage module has completed charging, and each of the electronic expansion valves has completed resetting and the electric valve has completed closing, then generate a fourth indication message, where the fourth indication message is used to indicate that the electric valve runs to a set opening degree.

5. The method according to claim 4, characterized in that, the method further includes: Determining that the electric valve runs to the set opening degree, then in response to the start-up indication message of the air conditioner, generate a second control message, where the second control message is used to control the air conditioner to start running.

6. The method according to claim 1, characterized in that, the air conditioner includes an electronic expansion valve provided corresponding to the indoor unit. The method further includes: Determining that the energy storage module has completed charging, then generate a fifth indication message or a sixth indication message. The fifth indication message is used to indicate that the electric valve first performs a reset, and then each of the electronic expansion valves performs a reset in sequence; The sixth indication message is used to indicate that each of the electronic expansion valves first performs a reset in sequence, and then the electric valve performs a reset.

7. The method according to claim 6, characterized in that, the method further includes: Determining that the electric valve and each of the electronic expansion valves have completed resetting, then in response to the start-up instruction of the air conditioner, generate a third control message, where the third control message is used to control the air conditioner to start running.

8. A control device for an air conditioner, characterized in that, the air conditioner includes: an indoor unit, an outdoor unit, and an energy storage module. A refrigerant pipeline is provided between the indoor unit and the outdoor unit, and an electric valve is provided on the refrigerant pipeline. The control device includes: An obtaining module, configured to obtain a power supply state indicating whether the air conditioner is powered on; A determination module, configured to determine that the air conditioner has been powered on based on the power supply state, and then generate first indication information, where the first indication information is used to instruct the energy storage module to switch to a charging mode.

9. The control device according to claim 8, wherein, the control device is disposed on the outdoor unit main board of the air conditioner, and the control device includes: a controller, a power supply circuit, and an energy storage circuit; wherein, the power supply circuit is configured to convert and process an external power supply and supply power to the controller, and the energy storage circuit is disposed between an output end of the power supply circuit and a power supply end of the controller.

10. An electronic device, wherein, comprising: a processor and a memory for storing a computer program capable of running on the processor, wherein, the processor, when running the computer program, is configured to execute the steps of the method according to any one of claims 1 to 7.

11. A computer storage medium, on which a computer program is stored, wherein, when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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