Control apparatus for air conditioner, control method thereof, device, and storage medium

Abstract

The present application discloses a control apparatus for an air conditioner, a control method thereof, a device, and a storage medium. The control apparatus comprises a controller, a power supply circuit, and an energy storage circuit. The controller is used for controlling at least one valve to act and supplying power to the at least one valve; the power supply circuit is used for performing conversion processing on an external power supply and then supplying power to the controller, an output end of the power supply circuit being connected to a power supply end of the controller by means of a first power supply line; and the energy storage circuit is arranged between the output end of the power supply circuit and the power supply end of the controller, is connected in parallel to the first power supply line, and is used for supplying power to the controller when the power supply circuit is powered off.

Description

Air conditioner control device, control method, equipment and storage medium thereof

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311589918.X and application date on November 24, 2023 and the Chinese patent application with application number 202323201595.0 and application date on November 24, 2023, and claims the priority of the above-mentioned Chinese patent applications. The entire contents of the above-mentioned Chinese patent applications are hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of air conditioning, and in particular to a control device for an air conditioner and a control method, equipment, and storage medium thereof. Background Art

[0004] Electric valves are commonly used in air conditioners. The opening size, flow path cutoff and opening of the electric valve are controlled by sending pulse signals or turning the power on and off. Before the air conditioner stops running, the electric valve will be controlled to the set state.

[0005] In related technology, when the air conditioner's external power supply suddenly loses power, the air conditioner's controller no longer controls the electric valve, and the valve remains at the same opening level as before the power outage until the next power cycle. If a leak develops in the air conditioner's indoor unit, the electric valve remains at its current opening level, allowing refrigerant in the refrigerant pipeline to leak through the valve into the air conditioner's surroundings. Some types of refrigerant are flammable, posing a safety hazard.

[0006] Summary of the Invention

[0007] In view of this, an embodiment of the present application provides a control device for an air conditioner, a control method, equipment and storage medium thereof, which aims to control the valve body to be in a fully closed state when the external power supply of the air conditioner is suddenly cut off, thereby improving the safety and reliability of the air conditioner.

[0008] The technical solution of the embodiment of the present application is implemented as follows:

[0009] In a first aspect, an embodiment of the present application provides a control device for an air conditioner, wherein at least one valve body is provided on a refrigerant pipeline of the air conditioner, comprising:

[0010] a controller configured to control the movement of the at least one valve body and supply power to the at least one valve body;

[0011] A power supply circuit, configured to convert and process an external power supply and supply power to the controller; an output end of the power supply circuit is connected to a power supply end of the controller via a first power supply line;

[0012] An energy storage circuit is provided between the output end of the power supply circuit and the power supply end of the controller and is connected in parallel with the first power supply line, and is used to supply power to the controller when the power supply circuit is powered off.

[0013] In some embodiments, the tank circuit comprises:

[0014] an energy storage unit, configured to store the electrical energy output by the power supply circuit and discharge the energy when the power supply circuit is powered off;

[0015] a step-down circuit, configured to step down the output voltage of the power supply circuit and charge the energy storage unit;

[0016] a boost circuit, configured to boost the output voltage of the energy storage unit and supply power to the controller when the energy storage unit is discharged;

[0017] The enabling control circuit is used to control the conduction and disconnection of the boost circuit and the buck circuit.

[0018] In some embodiments, the energy storage circuit further comprises:

[0019] The first voltage detection circuit is used to detect the output voltage of the power supply circuit, obtain a first voltage value, compare the first voltage value with a first set voltage threshold, and send a first comparison result to the controller.

[0020] In some embodiments, the energy storage circuit further comprises:

[0021] a second voltage detection circuit, configured to detect an output voltage of the step-down circuit, obtain a second voltage value, compare the second voltage value with a second set voltage threshold, and send a second comparison result to the step-down circuit, wherein the step-down circuit controls a charging mode of the energy storage unit based on the second comparison result;

[0022] The charging modes include: constant current charging mode and trickle charging mode.

[0023] In some embodiments, the enable control circuit controls the on and off of the boost circuit and the buck circuit based on a control instruction from the controller;

[0024] The control instruction includes: a first instruction and a second instruction, the first instruction is used to control the boost circuit to be disconnected and the buck circuit to be turned on; the second instruction is used to control the buck circuit to be disconnected and the boost circuit to be turned on.

[0025] In some embodiments, the control device further comprises:

[0026] The third voltage detection circuit is used to detect the power supply status of the external power supply, generate first power supply detection information indicating that the external power supply is normal, and send the first power supply detection information to the controller.

[0027] In some embodiments, the boost circuit is configured such that: when the energy storage unit is discharged, the output voltage value of the boost circuit is greater than or equal to the first set voltage threshold within a first set time period;

[0028] The first set time length is greater than or equal to the time length required for the controller to control the at least one valve body from a fully open state to a fully closed state.

[0029] In some embodiments, the energy storage circuit and the controller are disposed on the same substrate.

[0030] In some embodiments, the control device is disposed on a main control panel of an outdoor unit of the air conditioner.

[0031] In some embodiments, the first power supply circuit includes: a voltage stabilizing circuit, and the voltage stabilizing circuit is connected in parallel with the energy storage circuit.

[0032] In a second aspect, an embodiment of the present application provides a method for controlling the air conditioner control device according to the first aspect of the embodiment of the present application, the method comprising:

[0033] determining that the power circuit is de-energized;

[0034] Control the at least one valve body to close to a fully closed state.

[0035] In some embodiments, the method further comprises:

[0036] After controlling the at least one valve body to be closed for a first set time, the controller shuts down and powers off;

[0037] The first set time length is greater than or equal to the time length required for the controller to control the at least one valve body from a fully open state to a fully closed state.

[0038] In some embodiments, the method further comprises:

[0039] Based on the first comparison result, determining an operating mode of the energy storage circuit and sending a control instruction to the energy storage circuit;

[0040] The first comparison result is generated by the energy storage circuit based on a comparison between a first voltage value output by the power supply circuit and a first set voltage threshold.

[0041] In some embodiments, determining the operating mode of the energy storage circuit based on the first comparison result and sending a control instruction to the energy storage circuit includes:

[0042] If it is determined based on the first comparison result that the first voltage value is greater than or equal to the first set voltage threshold, determining that the energy storage circuit operates in a charging mode, and sending a first instruction to an enable control circuit of the energy storage circuit;

[0043] If it is determined based on the first comparison result that the first voltage value is less than the first set voltage threshold, the energy storage circuit is determined to operate in a discharge mode, and a second instruction is sent to the enable control circuit of the energy storage circuit.

[0044] In some embodiments, determining that the power circuit is de-energized includes:

[0045] If the first power detection information is not received within a second set time period, determining that the power circuit is powered off;

[0046] The first power supply detection information is generated by the third voltage detection circuit of the control device and is used to indicate that the external power supply is normal.

[0047] In some embodiments, the method further comprises:

[0048] Receiving first power supply detection information within a second set time period, and determining that the external power supply is supplying power normally;

[0049] Controlling the at least one valve body to reset and be in a set state;

[0050] The first power supply detection information is generated by the third voltage detection circuit of the control device and is used to indicate that the external power supply is normal.

[0051] In a third aspect, an embodiment of the present application provides an air conditioner control device as described in the first aspect of the embodiment of the present application, wherein the controller is configured to execute the steps of the method as described in the second aspect of the embodiment of the present application.

[0052] In a fourth aspect, an embodiment of the present application provides an electronic device, which is an air conditioner and includes: at least one valve body and the control device as described in the third aspect.

[0053] In a fifth aspect, an embodiment of the present application provides a storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps of the method described in the second aspect of the embodiment of the present application are implemented.

[0054] The air conditioner control device provided in an embodiment of the present application includes: a controller for controlling the movement of at least one valve body and supplying power to the at least one valve body; a power supply circuit for converting and processing an external power supply and supplying power to the controller; an output end of the power supply circuit is connected to the power supply end of the controller via a first power supply line; and an energy storage circuit, wherein the energy storage circuit is arranged between the output end of the power supply circuit and the power supply end of the controller and is connected in parallel with the first power supply line, and is used to supply power to the controller when the power supply circuit is powered off. Based on the connection between the energy storage circuit, the power supply circuit and the controller, the charging and discharging functions of the energy storage circuit are realized. In the event of a sudden power outage of the external power supply, the controller is powered by the energy storage circuit, and the valve body can be controlled to be completely closed, effectively preventing flammable refrigerant from leaking through the valve body through a leak point into the surrounding environment of the air conditioner, thereby improving the safety and reliability of the air conditioner; the energy storage circuit is connected in parallel with the first power supply line and shares the power supply circuit as an input source with the controller. Based on the miniaturized design of the energy storage circuit, the energy storage circuit and the controller are arranged on the same substrate, saving the cost of the air conditioner control device. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] FIG1 is a schematic structural diagram of a control device for an air conditioner according to an embodiment of the present application;

[0056] FIG2 is a schematic structural diagram of an energy storage circuit according to an embodiment of the present application;

[0057] FIG3 is a schematic diagram of a main power topology circuit of an energy storage circuit in an application example of the present application;

[0058] FIG4 is a schematic structural diagram of an energy storage circuit in an application example of the present application;

[0059] FIG5 is a schematic diagram of an enabling control circuit according to an embodiment of the present application;

[0060] FIG6 is a schematic structural diagram of a control device for an air conditioner in an application example of the present application;

[0061] FIG7 is a schematic structural diagram of a control device for an air conditioner in another application example of the present application;

[0062] FIG8 is a flow chart of a control method of a control device according to an embodiment of the present application;

[0063] FIG9 is a schematic diagram of a third voltage detection circuit in an application example of the present application;

[0064] FIG10 is a waveform diagram of first power supply detection information in an application example of the present application;

[0065] FIG11 is a schematic structural diagram of an air conditioner in another application example of the present application;

[0066] FIG12 is a flow chart of a method for controlling normal power-on of a control device in an application example of the present application;

[0067] FIG13 is a flow chart of a control method when an external power supply of a control device is suddenly cut off in an application example of the present application. DETAILED DESCRIPTION

[0068] The present application will be described in further detail below with reference to the accompanying drawings and embodiments.

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0070] An embodiment of the present application provides a control device for an air conditioner, as shown in Figure 1, at least one valve body 400 is arranged on the refrigerant pipeline of the air conditioner, and the control device includes: a controller 100, a power supply circuit 200 and a storage circuit 300, the controller 100 is configured to control the action of the at least one valve body 400 and supply power to the at least one valve body 400; the power supply circuit 200 is used to convert and process the external power supply 500 and supply power to the controller 100; the output end of the power supply circuit 200 is connected to the power supply end of the controller 100 via a first power supply line; the storage circuit 300 is arranged between the output end of the power supply circuit 200 and the power supply end of the controller 100 and is connected in parallel with the first power supply line, and is used to supply power to the controller 100 when the power supply circuit 200 is powered off.

[0071] Here, the refrigerant is used in the air conditioner to transfer heat energy, producing a cooling or heating effect; the refrigerant pipeline connects the indoor and outdoor units of the air conditioner for the circulation of the refrigerant; the valve body 400 controls the refrigerant flow in the refrigerant pipeline by adjusting the opening, producing different cooling or heating effects.

[0072] Among them, the valve body 400 can be an electric valve, and the embodiment of the present application does not specifically limit the type of the valve body 400; the air conditioner includes at least one valve body 400, and the number of valve bodies 400 can be determined according to the number of refrigerant pipelines.

[0073] It should be noted that when the controller 100 of the air conditioner receives an external shutdown command, the controller 100 will sequentially shut down the various working components of the air conditioner according to the set shutdown steps. When all the shutdown steps are completed, the controller 100 executes the power-off step. At this time, the air conditioner loses the control power supply and is in a shutdown and power-off state.

[0074] The set shutdown step includes the controller 100 controlling the valve body 400 to be in a set state.

[0075] It should be noted that in related technologies, when the air conditioner's external power supply suddenly loses power, the controller loses input power and cannot execute the shutdown steps before the power outage. The controller no longer controls the valve opening, and the valve remains at the same opening position as before the power outage until the next power-on. If a leak develops in the air conditioner's internal unit, the valve remains open, causing refrigerant in the refrigerant pipeline to leak through the leak and into the air conditioner's surrounding environment, posing a safety hazard. If the refrigerant is flammable, it may even cause an explosion.

[0076] It can be understood that in the embodiment of the present application, the energy storage circuit 300 is connected to the power supply circuit 200 and the controller 100. In the event that the external power supply 500 is suddenly powered off, the controller 100 is powered by the energy storage circuit 300, and the valve body 400 can be controlled to be completely closed, effectively preventing the flammable refrigerant from leaking into the surrounding environment of the air conditioner through the leak point and the valve body 400 when there is a leak point in the indoor unit of the air conditioner, thereby improving the safety and reliability of the air conditioner.

[0077] In an application example, the power supply circuit 200 may include a rectifier circuit, a filter circuit and a switching power supply circuit. The rectifier circuit is used to rectify the alternating current output by the external power supply 500 into direct current; the filter circuit is used to eliminate high-order harmonics in the direct current output by the rectifier circuit; and the switching power supply circuit is used to adjust the output voltage of the filter circuit to the operating voltage of the controller 100.

[0078] Exemplarily, as shown in Figure 2, the energy storage circuit 300 includes: an energy storage unit 301, a buck circuit 302, a boost circuit 303 and an enable control circuit 304. The energy storage unit 301 is used to store the electric energy output by the power supply circuit 200 and discharge it when the power supply circuit 200 is powered off; the buck circuit 302 is used to step down the output voltage of the power supply circuit 200 and charge the energy storage unit 301; the boost circuit 303 is used to boost the output voltage of the energy storage unit 301 when the energy storage unit 301 is discharged and then supply power to the controller 100; the enable control circuit 304 is used to control the conduction and disconnection of the boost circuit 303 and the buck circuit 302.

[0079] It is understood that the nominal voltage of the energy storage unit 301 is lower than the rated operating voltage of the controller 100. Therefore, the output voltage of the power supply circuit 200 needs to be stepped down to a charging voltage by the step-down circuit 302 before charging the energy storage unit 301. The output voltage of the energy storage unit 301 needs to be stepped up to a discharge voltage by the step-up circuit 303 before supplying power to the controller 100. The nominal voltage of the energy storage unit 301 is lower than the operating voltage of the controller 100, which reduces the voltage level requirement for the energy storage unit 301 and reduces the size of the energy storage unit 301.

[0080] It should be noted that the energy storage unit 301 may include at least one of a supercapacitor, a lithium battery, and a sodium ion battery.

[0081] It is understandable that an energy storage component with high energy density is preferably used as the energy storage unit 301 in the embodiment of the present application. Selecting an energy storage component with high energy density is conducive to the miniaturization design of the energy storage circuit 300 and reduces the requirements for the installation space of the air conditioner.

[0082] Among them, supercapacitors can include double-layer capacitors and hybrid capacitors, and lithium batteries can include lithium iron phosphate batteries, lithium titanate batteries and ternary lithium batteries.

[0083] An application example of the present application provides a main power topology circuit of an energy storage circuit 300, as shown in Figure 3, wherein the step-down circuit 302 may include a Buck circuit, and the step-up circuit 303 may include a Boost circuit; the energy storage circuit 300 is grounded through capacitors C1-C3, inductors L31 and L32 act as energy storage filters, endpoints VIN1 and VIN2 are connected in parallel with the first power supply line, and endpoint VOUT is connected to the energy storage unit 301. The step-up and step-down functions of the energy storage circuit 300 are achieved by controlling the conduction and disconnection of field-effect transistors Q31-Q34.

[0084] Exemplarily, as shown in Figure 4, the energy storage circuit 300 also includes: a first voltage detection circuit 305, the first voltage detection circuit 305 is used to detect the output voltage of the power supply circuit 200, obtain a first voltage value, compare the first voltage value with a first set voltage threshold, and send the first comparison result to the controller 100.

[0085] Here, the first set voltage threshold is greater than or equal to the minimum operating voltage of the controller 100. When the input voltage of the controller 100 is greater than or equal to the first set voltage threshold, the normal operation of the controller 100 can be guaranteed; when the input voltage of the controller 100 is less than the first set voltage threshold, the normal operation of the controller 100 cannot be guaranteed.

[0086] It should be noted that the first voltage detection circuit 305 includes a first comparator, which is used to compare the first voltage value with a first set voltage threshold, generate a first comparison result, and send the first comparison result to the controller 100 .

[0087] It is understandable that the first comparison result at least includes:

[0088] The controller 100 determines whether the output voltage of the power supply circuit 200 can ensure normal operation of the controller 100 based on the first comparison result.

[0089] Exemplarily, as shown in FIG4 , the energy storage circuit 300 further includes:

[0090] The second voltage detection circuit 306 is used to detect the output voltage of the step-down circuit 302, obtain a second voltage value, compare the second voltage value with a second set voltage threshold, and send the second comparison result to the step-down circuit 302. The step-down circuit 302 controls the charging mode of the energy storage unit 301 based on the second comparison result; wherein the charging mode includes: constant current charging mode and trickle charging mode.

[0091] It should be noted that due to the high energy density of the selected energy storage unit 301, the voltage of the energy storage unit 301 changes slowly during the charging process, and the second voltage detection circuit 306 cannot quickly provide second comparison result feedback during the charging startup process. Moreover, if the step-down circuit 302 uses a constant voltage charging mode to charge the energy storage unit 301, it is easy for the charging current of the energy storage unit 301 to be too large to exceed the power supply capacity of the power supply circuit 200, thereby lowering the output voltage of the power supply circuit 200 and affecting the normal operation of the controller 100. In view of the above situation, in the embodiment of the present application, the step-down circuit 302 needs to control the charging current of the energy storage unit 301 to be constant and within the power supply capacity range of the power supply circuit 200.

[0092] Here, the step-down circuit 302 also includes a current sampling feedback circuit, which is used to collect the output current value of the step-down circuit 302 and feed the current value back to the step-down circuit 302. The step-down circuit 302 determines whether the charging current of the energy storage unit 301 is constant and does not exceed the power supply capacity of the power supply circuit 200 based on the feedback current value.

[0093] It is understandable that the charging mode of the energy storage unit 301 includes a constant current charging mode and a trickle charging mode. In the constant current charging mode, the step-down circuit 302 charges the energy storage unit 301 with a constant preset charging current. As the charging process proceeds, the current capacity of the energy storage unit 301 gradually increases, and the charging voltage output by the step-down circuit 302 also gradually increases. When the output voltage of the step-down circuit 302 is equal to the target charging voltage of the energy storage unit 301 (i.e., the second set voltage threshold), the step-down circuit 302 cannot maintain the constant charging current by increasing the output voltage. At this time, the step-down circuit 302 uses the trickle charging mode to charge the energy storage unit 301. In the trickle charging mode, the step-down circuit 302 charges the energy storage unit 301 with a small current at a constant voltage to compensate for the power loss of the energy storage unit 301 due to self-discharge.

[0094] Here, considering that the energy storage unit 301 needs to reserve sufficient voltage derating, the second set voltage threshold should be smaller than the allowable charging voltage of the energy storage unit 301 at the current temperature.

[0095] Among them, the allowable charging voltage of the energy storage unit 301 can be a uniquely determined value, which can be determined in combination with the average temperature of the ambient environment in which the air conditioner is located. For example, the average temperature is 25°C, and the allowable charging voltage of the energy storage unit 301 is determined. The second set voltage threshold should be less than the allowable charging voltage of the energy storage unit 301 at the average ambient temperature.

[0096] The voltage derating level of the energy storage unit 301 can be determined according to the surrounding environment of the air conditioner. For example, if the air conditioner is used in a ground environment, the voltage derating level of the energy storage unit 301 can be level 2 derating or level 3 derating.

[0097] It should be noted that the second voltage detection circuit 306 includes a second comparator, which is used to compare the second voltage value with the second set voltage threshold, generate a second comparison result and send it to the step-down circuit 302, and the step-down circuit 302 controls the charging mode of the energy storage unit 301 based on the second comparison result.

[0098] Exemplarily, the enable control circuit 304 controls the on and off of the boost circuit 303 and the buck circuit 302 based on the control instruction from the controller 100; wherein the control instruction includes: a first instruction and a second instruction, the first instruction is used to control the boost circuit 303 to be disconnected and the buck circuit 302 to be turned on; the second instruction is used to control the buck circuit 302 to be disconnected and the boost circuit 303 to be turned on.

[0099] Here, the energy storage circuit 300 has at least three modes: a charging mode, a discharging mode, and a shutdown mode. In the charging mode, the power supply circuit 200 charges the energy storage unit 301; in the discharging mode, the energy storage circuit 300 supplies power to the controller 100; in the shutdown mode, the energy storage circuit 300 does not operate, and the energy storage unit 301 neither charges nor discharges.

[0100] It can be understood that in the charging mode, the boost circuit 303 is disconnected, the buck circuit 302 is turned on, the energy storage unit 301 is connected to the power supply circuit 200, and is disconnected from the controller 100; in the discharging mode, the buck circuit 302 is disconnected, the boost circuit 303 is turned on, the energy storage unit 301 is connected to the controller 100, and is disconnected from the power supply circuit 200; in the shutdown mode, both the boost circuit 303 and the buck circuit 302 are disconnected, and the energy storage unit 301 has no other charge changes except self-discharge.

[0101] It should be noted that the conduction or disconnection of the boost circuit 303 and the buck circuit 302 is controlled by their respective enable pins. When the first comparison result generated by the first voltage detection circuit 305 is that the first voltage value is greater than or equal to the first set voltage threshold, the controller 100 determines that the current output voltage of the power supply circuit 200 can meet the normal operation of the controller 100, and the energy storage circuit 300 does not need to supply power to the controller 100. The controller 100 sends a first instruction to the enable control circuit 304. The enable control circuit 304 controls the boost circuit 303 to be disconnected and the buck circuit 302 to be turned on through the enable pin; when the first comparison result generated by the first voltage detection circuit 305 is that the first voltage value is less than the first set voltage threshold, the first circuit The reason why the voltage value is too low may be that the external power supply 500 suddenly loses power or the power circuit 200 output fails. At this time, the controller 100 determines that the current output voltage of the power circuit 200 cannot guarantee the normal operation of the controller 100, and the energy storage circuit 300 needs to supply power to the controller 100 to ensure that the controller 100 can complete all shutdown steps. The controller 100 sends a second instruction to the enable control circuit 304, and the enable control circuit 304 controls the step-down circuit 302 to be disconnected and the boost circuit 303 to be turned on through the enable pin; when the controller 100 is in the shutdown and power-off state, the control power supply in the air conditioner control circuit loses power. At this time, the boost circuit 303 and the step-down circuit 302 are both in the disconnected state due to undervoltage of the control power supply.

[0102] It is understandable that by controlling the on / off of the boost circuit 303 and the buck circuit 302 through the enable pin, the boost circuit 303 can be driven to work in time when it is detected that the first voltage value is less than the first set voltage threshold, with a short delay time.

[0103] It should be noted that the boost circuit 303 and the buck circuit 302 cannot be turned on at the same time. Only at most one of them is allowed to be turned on at the same time. The specific reason is that when the boost circuit 303 and the buck circuit 302 are turned on at the same time, the energy storage unit 301 is in a high-frequency charging and discharging state, and the heat generated by the energy storage unit 301 per unit time increases sharply, affecting the service life of the energy storage unit 301 and increasing the failure rate of the energy storage unit 301.

[0104] For example, Figure 5 provides a schematic diagram of an enable control circuit 304 of an application example of the present application. To avoid the boost circuit 303 and the buck circuit 302 being turned on at the same time, the enable of the boost circuit 303 and the buck circuit 302 is controlled by the same I / O port of the enable control circuit 304, with opposite logic.

[0105] Here, R51 is a high-power resistor used to prevent excessive base current in transistor Q51, and R52 is a pull-down resistor used to effectively ground the base of transistor Q51 to SGND. In charging mode, the enable control circuit signal can be low. Due to the provision of pull-up resistor R51, the enable pin of buck circuit 302 receives a high level, turning buck circuit 302 on. The enable pin of boost circuit 303 receives a low level from enable control circuit 304, turning boost circuit 303 off. In discharging mode, the enable control circuit signal can be high, turning NPN transistor Q51 on. The enable pin of buck circuit 302 receives a low level, turning buck circuit 302 off. The enable pin of boost circuit 303 receives a high level from enable control circuit 304, turning boost circuit 303 on.

[0106] It should be noted that the energy storage circuit 300 may further include an overvoltage protection circuit. The overvoltage protection circuit may be a hardware overvoltage protection circuit, a software overvoltage protection circuit, or both a hardware and software overvoltage protection circuit.

[0107] Exemplarily, as shown in Figure 6, the control device also includes: a third voltage detection circuit 601, which is used to detect the power supply status of the external power supply 500, generate first power supply detection information indicating that the external power supply 500 is supplying power normally, and send the first power supply detection information to the controller 100.

[0108] It can be understood that the controller 100 determines whether the external power supply 500 is supplying power normally based on the first power supply detection information sent by the third voltage detection circuit 601. The embodiment of this application does not specifically limit the manner in which the third voltage detection circuit 601 detects the power supply status of the external power supply 500.

[0109] Exemplarily, the boost circuit 303 is configured as follows: when the energy storage unit 301 is discharging, the output voltage value of the boost circuit 303 is greater than or equal to a first set voltage threshold within a first set time period; wherein the first set time period is greater than or equal to the time required for the controller 100 to control at least one valve body 400 from a fully open state to a fully closed state.

[0110] It can be understood that in the discharge mode, the first voltage value is less than the first set voltage threshold, and the output voltage of the boost circuit 303 needs to be greater than or equal to the first set voltage threshold and maintained for the first set time, that is, the output voltage of the boost circuit 303 is greater than the output voltage of the power supply circuit 200 and can ensure the normal operation of the controller 100.

[0111] It can be understood that since the first set time is greater than or equal to the time required for the controller 100 to control the valve body 400 from a fully open state to a fully closed state, the controller 100 executes the control valve body 400 closing action for the first set time, and it can be determined that the valve body 400 is in a fully closed state at this time.

[0112] It should be noted that the capacity of the energy storage unit 301 needs to ensure that after discharging for the first set time, the discharge voltage value after being boosted by the boost circuit 303 is greater than or equal to the first set voltage threshold and meets the derating level requirement.

[0113] Exemplarily, the energy storage circuit 300 and the controller 100 are provided on the same substrate.

[0114] Exemplarily, the control device is disposed on the main control board of the air conditioner's outdoor unit. It will be appreciated that in the embodiment of the present application, the energy storage circuit 300 is connected in parallel with the first power supply circuit, sharing the power supply circuit 200 as an input source with the controller 100. Based on the miniaturized design of the energy storage circuit 300, the energy storage circuit 300 and the controller 100 can be disposed on the same substrate, thereby reducing the cost of the air conditioner's control device. Exemplarily, the first power supply circuit includes a voltage stabilizing circuit 602, which is connected in parallel with the energy storage circuit 300.

[0115] Here, the voltage stabilizing circuit 602 may be a DC voltage stabilizing circuit, which is used to stabilize the voltage of the power supply circuit 200 and then supply power to the controller 100 to avoid large fluctuations in the output voltage of the power supply circuit 200 affecting the normal operation of the controller 100.

[0116] It should be noted that, since the tank circuit 300 includes a step-down circuit 302, it can regulate the voltage output from the power supply circuit 200 to the tank circuit 300. Therefore, the input end of the tank circuit 300 does not need to be connected in series with the voltage stabilizing circuit 602. Since the tank circuit 300 includes a step-up circuit 303, it can regulate the voltage output from the tank circuit 300 to the controller 100. Therefore, the output end of the tank circuit 300 does not need to be connected in series with the voltage stabilizing circuit 602. Therefore, the voltage stabilizing circuit 602 is connected in parallel with the tank circuit 300 and then connected to the power supply circuit 200 and the controller 100.

[0117] In an application example of the present application, a schematic diagram of the structure of an air conditioner control device is provided, as shown in Figure 7. The power supply circuit 200 includes a rectifier circuit 201, a filter circuit 202, and a switching power supply circuit 203. The energy storage circuit 300 does not have a separate rectifier circuit and filter circuit, and shares the power supply circuit 200 with the voltage stabilization circuit 602. The controller 100 includes a control chip 101 and a valve control circuit 102. The control chip 101 generates a valve control instruction and sends it to the valve control circuit 102. The valve control circuit 102 generates n valve control information based on the valve control instruction, which is used to control the opening of the n valves to a set state.

[0118] Here, at least one valve body 400 includes a first valve body 401 and a second valve body 402 , that is, the valve body control circuit 102 generates two valve body control information for controlling the openings of the first valve body 401 and the second valve body 402 to be in a set state.

[0119] The present application also provides a control method based on the aforementioned control device, as shown in FIG8 , the method comprising:

[0120] Step 801: Determine whether the power circuit is powered off.

[0121] Step 802: Control at least one valve body to close to a fully closed state.

[0122] It can be understood that the control method of the embodiment of the present application, under the premise that the controller 100 has not received an external shutdown command, determines that the power circuit 200 is powered off, judges that the output voltage of the power circuit 200 will soon be unable to ensure the normal operation of the controller 100, and the controller 100 executes the shutdown procedure to control the valve body 400 to close to a fully closed state, thereby effectively avoiding the controller 100 being unable to control the opening of the valve body 400 due to a sudden power failure of the external power supply 500, thereby eliminating the leakage of flammable refrigerant through the valve body through the leak point to the surrounding environment of the air conditioner when there is a leak point in the indoor unit of the air conditioner, thereby improving the safety and reliability of the air conditioner.

[0123] In an application example of the present application, after step 801 , the control method further includes: stopping the compressor and the outdoor unit DC fan.

[0124] Here, the controller 100 of the control device may control the opening of the valve body 400 and may also control the start and stop of the compressor and the outdoor DC fan of the air conditioner.

[0125] Exemplarily, after step 802, the control method further includes: after controlling at least one valve body 400 to close for a first set time, the controller 100 shuts down and powers off; wherein the first set time is greater than or equal to the time required for the controller 100 to control at least one valve body 400 from a fully open state to a fully closed state.

[0126] It can be understood that when the controller 100 determines that the power circuit 200 is powered off, the controller 100 controls the valve body 400 to close to a fully closed state. Since the controller 100 cannot directly detect the current opening of the valve body 400, the controller 100 controls the valve body 400 to close for a first set time, wherein the first set time is greater than or equal to the time required for the controller 100 to control the valve body 400 from a fully open state to a fully closed state. It can be indirectly determined that the valve body 400 is currently in a fully closed state. At this time, the controller 100 has executed all the set shutdown steps, and the air conditioner does not need to be powered on to work. The controller 100 executes the power-off step.

[0127] It is understandable that closing the control valve body 400 to a fully closed state can serve as a judgment condition for stopping the energy storage circuit 300 from discharging. At this time, the controller 100 is powered off, the enabling control circuit signal is low, and the boost circuit 303 is disconnected.

[0128] Exemplarily, determining that the power circuit 200 is powered off includes:

[0129] If the first power detection information is not received within the second set time period, it is determined that the power circuit 200 is powered off.

[0130] The first power supply detection information is generated by the third voltage detection circuit 601 of the control device, and is used to indicate that the external power supply 500 is supplying power normally.

[0131] Here, in an application example of the present application, the third voltage detection circuit 601 can be an optocoupler voltage detection circuit, as shown in Figure 9, the external power supply 500 is connected to the optocoupler IC91 through the diode D91 and the high-power resistor R91, the high-power resistor R92, the capacitor C91 and the Schottky diode D92 play a role in voltage stabilization and protection, and the optocoupler IC91 is turned on in the positive half cycle of the output voltage of the external power supply 500, and the optocoupler is turned off in the negative half cycle of the output voltage of the external power supply 500; the control power supply is grounded through the capacitor C92, and the output end of the optocoupler is connected to the pull-up resistor R93 and the high-power resistor R94. When the optocoupler IC91 is turned on, the controller 100 receives a low-level signal, and when the optocoupler IC91 is turned off, the controller 100 receives a high-level signal.

[0132] FIG10 is a waveform diagram of first power supply detection information in an application example of the present application.

[0133] It can be understood that the first power supply detection information can be a low-level signal generated by the third voltage detection circuit 601. When the external power supply 500 is supplying power normally, the controller 100 will periodically receive a low-level signal according to the frequency of the output voltage of the external power supply 500. If the controller 100 does not receive the low-level signal sent by the third voltage detection circuit 601 within the second set time period, it is judged that the external power supply 500 is supplying power abnormally, and then it is judged that the power supply circuit 200 powered by the external power supply 500 is powered off.

[0134] It is understandable that the second set time is greater than or equal to one cycle of the output voltage of the external power supply 500. When the external power supply 500 is supplying power normally, the controller 100 receives a low-level signal sent by the third voltage detection circuit 601 within half of the second set time, and receives a high-level signal sent by the third voltage detection circuit 601 within the other half of the second set time. Exemplarily, the control method further includes:

[0135] Based on the first comparison result, the operating mode of the energy storage circuit 300 is determined, and a control instruction is sent to the energy storage circuit 300.

[0136] The first comparison result is generated by the energy storage circuit 300 based on a comparison between the first voltage value output by the power supply circuit 200 and the first set voltage threshold.

[0137] Here, the first set voltage threshold is greater than or equal to the minimum operating voltage of the controller 100. When the input voltage of the controller 100 is greater than or equal to the first set voltage threshold, the controller 100 can operate normally; when the input voltage of the controller 100 is less than the first set voltage threshold, it cannot be guaranteed that the controller 100 can operate normally.

[0138] It can be understood that the first comparison result includes at least: the first voltage value is greater than the first set voltage threshold, the first voltage value is equal to the first set voltage threshold, and the first voltage value is less than the first set voltage threshold. The controller 100 determines whether the output voltage of the power supply circuit 200 can ensure the normal operation of the controller 100 based on the first comparison result.

[0139] It is understandable that the operating modes of the energy storage circuit 300 include at least a charging mode, a discharging mode, and a shutdown mode.

[0140] Exemplarily, based on the first comparison result, determining the operating mode of the energy storage circuit 300 and sending a control instruction to the energy storage circuit 300 include:

[0141] If it is determined based on the first comparison result that the first voltage value is greater than or equal to the first set voltage threshold, the energy storage circuit 300 is determined to operate in a charging mode, and a first instruction is sent to the enable control circuit 304 of the energy storage circuit 300; if it is determined based on the first comparison result that the first voltage value is less than the first set voltage threshold, the energy storage circuit 300 is determined to operate in a discharging mode, and a second instruction is sent to the enable control circuit 304 of the energy storage circuit 300.

[0142] It is understood that in the charging mode, the power supply circuit 200 charges the energy storage unit 301; and in the discharging mode, the energy storage circuit 300 supplies power to the controller 100. Exemplarily, the method further includes: receiving first power supply detection information within a second set time period, determining that the external power supply 500 is supplying power normally; and controlling at least one valve body 400 to reset and be in a set state.

[0143] It can be understood that when the external power supply 500 is supplying power normally, the third voltage detection circuit 601 sends a high-level signal within the second set time period. The controller 100 determines that the external power supply 500 is supplying power normally based on the high-level signal, and performs a reset operation on at least one valve body 400. After completing the reset operation, the opening of at least one valve body 400 is controlled to be in a set state, waiting for the next valve body control instruction.

[0144] In one application example of the present application, a schematic diagram of the structure of an air conditioner is provided, as shown in FIG11 . The outdoor unit of the air conditioner includes components such as an outdoor heat exchanger, a gas-liquid separator, a compressor, a one-way valve, and a four-way valve. A refrigerant pipeline is provided between the indoor and outdoor units of the air conditioner. A motorized valve assembly 403 is provided on each refrigerant pipeline branch. The motorized valve assembly 403 includes a motorized valve provided on each refrigerant pipeline branch. The motorized valve assembly 403 is used to control the refrigerant flow in the refrigerant pipeline branch. A first motorized valve 404 and a second motorized valve 405 are provided on the inlet and outlet sides of the refrigerant pipeline main circuit, respectively. The first and second motorized valves 404 and 405 are used to cut off the flow of refrigerant in the refrigerant pipeline. It is understood that based on the schematic diagram of the air conditioner structure shown in FIG11 , after the controller 100 determines that the external power supply 500 is supplying power normally, it resets the motorized valves on the refrigerant pipeline of the air conditioner.

[0145] Here, resetting the electric valves on the refrigerant pipeline of the air conditioner may include: the controller 100 controls the electric valves in the electric valve group 403 to reset and maintain the set opening in sequence, and after determining that the electric valve group 403 completes the reset operation, controls the first electric valve 404 and the second electric valve 405 to reset and maintain the set opening.

[0146] Here, the resetting operation of the electric valves on the refrigerant pipeline of the air conditioner may also include: the controller 100 controls the first electric valve 404 and the second electric valve 405 to reset and maintain the set opening, and after determining that the first electric valve 404 and the second electric valve 405 have completed the reset operation, controls the electric valves in the electric valve group 403 to reset in sequence and maintain the set opening.

[0147] Preferably, the first electric valve 404 and the second electric valve 405 are reset and maintain the set opening. The first electric valve 404 and the second electric valve 405 are reset and closed to a fully closed state. At this time, the refrigerant pipeline of the air conditioner is in a cut-off state to avoid refrigerant leakage.

[0148] It should be noted that after the controller 100 determines that the external power supply 500 is operating normally, it also determines that the energy storage circuit 300 is operating in the charging mode. The step of the controller 100 controlling the at least one valve body 400 to reset and be in the set state can be performed simultaneously with the step of the controller 100 sending the first instruction to the enable control circuit 304, or it can be performed after the step of the controller 100 sending the first instruction to the enable control circuit 304.

[0149] In an application example of the present application, a control method for controlling normal power-on operation of a control device is provided, as shown in FIG12 , including:

[0150] Step 1201: Power on the air conditioner.

[0151] Here, the air conditioner is powered on means that the external power supply 500 supplies power normally and the output voltage can ensure that the air conditioner starts and runs.

[0152] Step 1202: The power supply circuit operates normally.

[0153] Here, the power supply circuit 200 successfully receives power from the external power supply 500 , and the power supply circuit 200 supplies power to the controller 100 .

[0154] Step 1203: The controller operates normally.

[0155] Here, the controller 100 successfully receives power from the power circuit 200 , and the controller 100 controls the valve body 400 to operate normally.

[0156] Step 1204: The air conditioner operates normally.

[0157] Here, the normal operation of the air conditioner includes the normal operation of the control device, and also includes the normal operation of air conditioner components such as the valve body 400, the compressor, and the outdoor unit DC fan.

[0158] In step 1203, the controller operates normally, which specifically includes:

[0159] Step 12031: The controller sends a first instruction.

[0160] Here, since the controller 100 sends a control instruction based on the first comparison result issued by the first voltage detection circuit 305, when the air conditioner is powered on normally, the controller 100 does not need to discharge the energy storage circuit 300. At this time, the control instruction issued by the controller 100 is the first instruction.

[0161] In step 12032, the energy storage circuit operates in a charging mode.

[0162] Here, the enable control circuit 304 controls the step-down circuit 302 to be turned on and the step-up circuit 303 to be turned off based on the first instruction.

[0163] In step 12033, the step-down circuit charges the energy storage unit in a constant current charging mode.

[0164] Here, since the air conditioner is in the power-on startup stage, the remaining capacity of the energy storage unit 301 is small, and the step-down circuit 302 charges the energy storage unit 301 in a constant current charging mode.

[0165] Step 12034, determine whether the second voltage value is equal to the second set voltage threshold, if yes, execute step 12035; if not, continue to execute step 12033.

[0166] In step 12035, the step-down circuit charges the energy storage unit in a trickle charging mode.

[0167] In an application example of the present application, a control method for a control device when an external power supply suddenly loses power is provided, as shown in FIG13 , including:

[0168] Step 1301: The external power supply is turned off.

[0169] Here, the power failure of the external power supply 500 may be a sudden power outage of the external power supply 500 or a sudden disconnection of the power plug of the air conditioner from the socket.

[0170] Step 1302: Determine whether the power circuit is powered off.

[0171] Here, the power circuit 200 can be determined to be powered off based on the failure to receive the first power detection information within a second set duration. The first power detection information can be a low-level signal periodically emitted by the third voltage detection circuit 601. If the second set duration is greater than or equal to one cycle of the output voltage of the external power supply 500, the controller 100 determines that the external power supply 500 is supplying power abnormally, and further determines that the power circuit 200 powered by the external power supply 500 is powered off.

[0172] Step 1303: Stop the compressor and the outdoor unit DC fan.

[0173] Here, the controller 100 of the control device may control the start and stop of the compressor and the outdoor DC fan of the air conditioner in addition to controlling the opening of the valve body 400.

[0174] Step 1304 , determining whether the first voltage value is less than a first set voltage threshold value, if so, executing step 1305 ; if not, executing step 1307 .

[0175] Here, since a capacitor is set in the power supply circuit 200, when the power supply circuit 200 is powered off, the capacitor can discharge to the controller 100 in a short time. At this time, the energy storage circuit 300 does not supply power to the controller 100, and the controller 100 controls the valve body 400 to close; when the output voltage of the power supply circuit 200 cannot ensure the normal operation of the controller 100, the first comparison result issued by the first voltage detection circuit 305 changes.

[0176] Step 1305: The controller issues a second instruction.

[0177] Here, since the first comparison result received by the controller 100 changes, the controller 100 issues a second instruction based on the changed first comparison result.

[0178] In step 1306 , the energy storage circuit operates in a discharge mode.

[0179] The enable control circuit 304 controls the step-down circuit 302 to be turned off and the step-up circuit 303 to be turned on based on the second instruction.

[0180] Step 1307, controlling the valve body to close to a fully closed state.

[0181] Step 1308: The controller is shut down and powered off.

[0182] Here, after the controller 100 determines that all valve bodies 400 are in the fully closed state, it determines that all shutdown steps have been completed, and the controller 100 shuts down and cuts off power.

[0183] Here, timing can be started from the start of the closing action of the valve body 400 controlled by the controller 100. After reaching the first set time, the controller 100 determines that all the valve bodies 400 are in a fully closed state, wherein the first set time is greater than or equal to the time required for the controller 100 to control at least one valve body 400 from a fully open state to a fully closed state.

[0184] It can be understood that any step of the control method of the control device in the aforementioned embodiment of the present application can be implemented by configuring a program of the controller 100 of the control device.

[0185] The present application also provides an electronic device, which is an air conditioner and includes at least one valve body 400 and the control device described in the present application. Thus, the electronic device can, under the premise that the controller 100 has not received an external shutdown command, determine that the output voltage of the power circuit 200 is about to fail to ensure the normal operation of the controller 100 by determining that the power circuit 200 is powered off, and the controller 100 executes a shutdown step to control the valve body 400 to close to a fully closed state. This effectively avoids the controller 100 being unable to control the opening of the valve body 400 due to a sudden power failure of the external power supply 500, thereby eliminating the possibility that flammable refrigerant leaks into the surrounding environment of the air conditioner through a leak when there is a leak in the air conditioner's indoor unit, thereby improving the safety and reliability of the air conditioner.

[0186] In an exemplary embodiment, the present application further provides a storage medium, namely a computer storage medium, which can be a computer-readable storage medium, for example, a memory storing a computer program, wherein the computer program can be executed by a microprocessor of a control device to complete the steps described in the method of the embodiment of the present application. The computer-readable storage medium can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory.

[0187] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0188] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0189] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A control device for an air conditioner, wherein at least one valve body is arranged on a refrigerant pipeline of the air conditioner, and the control device comprises: A controller configured to control the movement of the at least one valve body and supply power to the at least one valve body; A power supply circuit, used to convert and process the external power supply to supply power to the controller; the output end of the power supply circuit is connected to the power supply end of the controller via a first power supply line; An energy storage circuit is arranged between the output end of the power supply circuit and the power supply end of the controller and is connected in parallel with the first power supply line, and is used to supply power to the controller when the power supply circuit is powered off.

2. The control device according to claim 1, wherein: The energy storage circuit comprises: An energy storage unit, used to store the electric energy output by the power supply circuit and discharge it when the power supply circuit is powered off; A step-down circuit, used for stepping down the output voltage of the power supply circuit to charge the energy storage unit; A boost circuit, used for boosting the output voltage of the energy storage unit and supplying power to the controller when the energy storage unit is discharged; The enabling control circuit is used to control the on and off of the boost circuit and the buck circuit.

3. The control device according to claim 2, wherein: The energy storage circuit also includes: The first voltage detection circuit is used to detect the output voltage of the power supply circuit, obtain a first voltage value, compare the first voltage value with a first set voltage threshold, and send a first comparison result to the controller.

4. The control device according to claim 2, wherein: The energy storage circuit also includes: a second voltage detection circuit, configured to detect an output voltage of the step-down circuit, obtain a second voltage value, compare the second voltage value with a second set voltage threshold, and send a second comparison result to the step-down circuit, wherein the step-down circuit controls a charging mode of the energy storage unit based on the second comparison result; Wherein, the charging modes include: constant current charging mode and trickle charging mode.

5. The control device according to claim 2, wherein: The enabling control circuit controls the on and off of the boost circuit and the buck circuit based on the control instruction from the controller; The control instruction includes: a first instruction and a second instruction, wherein the first instruction is used to control the boost circuit to be disconnected and the buck circuit to be turned on; the second instruction is used to control the buck circuit to be disconnected and the boost circuit to be turned on.

6. The control device according to claim 1, wherein: The control device also includes: The third voltage detection circuit is used to detect the power supply status of the external power supply and generate a table The controller collects first power supply detection information indicating that the external power supply is normally powered, and sends the first power supply detection information to the controller.

7. The control device according to claim 2, wherein: The boost circuit is configured such that: when the energy storage unit is discharged, the output voltage value of the boost circuit is greater than or equal to the first set voltage threshold within a first set time period; Wherein, the first set time length is greater than or equal to the time length required for the controller to control the at least one valve body from a fully open state to a fully closed state.

8. The control device according to claim 1, wherein: The energy storage circuit and the controller are arranged on the same substrate.

9. The control device according to claim 1, wherein: The control device is arranged on the main control board of the outdoor unit of the air conditioner.

10. The control device according to claim 1, wherein: The first power supply circuit includes: a voltage stabilizing circuit, and the voltage stabilizing circuit is connected in parallel with the energy storage circuit.

11. A control method for a control device according to any one of claims 1 to 10, comprising: Determining that the power circuit is de-energized; Control the at least one valve body to close to a fully closed state.

12. The method according to claim 11, wherein: The method further comprises: After controlling the at least one valve body to be closed for a first set time, the controller shuts down and cuts off power; Wherein, the first set time length is greater than or equal to the time length required for the controller to control the at least one valve body from a fully open state to a fully closed state.

13. The method according to claim 11, wherein: The method further comprises: Based on the first comparison result, determining the working mode of the energy storage circuit, and sending a control instruction to the energy storage circuit; The first comparison result is generated by the energy storage circuit based on a comparison between a first voltage value output by the power supply circuit and a first set voltage threshold.

14. The method according to claim 13, wherein: The determining the working mode of the energy storage circuit based on the first comparison result and sending a control instruction to the energy storage circuit includes: If it is determined based on the first comparison result that the first voltage value is greater than or equal to the first set voltage threshold, determining that the energy storage circuit operates in a charging mode, and sending a first instruction to an enable control circuit of the energy storage circuit; If it is determined based on the first comparison result that the first voltage value is less than the first set voltage threshold, it is determined that the energy storage circuit operates in a discharge mode, and a second instruction is sent to an enable control circuit of the energy storage circuit.

15. The method according to claim 11, wherein: The step of determining that the power circuit is powered off includes: If the first power supply detection information is not received within a second set time period, it is determined that the power supply circuit is powered off; The first power supply detection information is generated by a third voltage detection circuit of the control device and is used to indicate that the external power supply is normal.

16. The method according to claim 10, wherein: The method further comprises: Receiving the first power supply detection information within the second set time period, and determining that the external power supply is supplying power normally; Controlling the at least one valve body to be reset and in a set state; The first power supply detection information is generated by a third voltage detection circuit of the control device and is used to indicate that the external power supply is normal.

17. A control device according to any one of claims 1 to 10, wherein the controller is configured to execute the steps of the method according to any one of claims 10 to 16.

18. An electronic device, the electronic device being an air conditioner, comprising: At least one valve body and a control device as claimed in claim 17.

19. A storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the method according to any one of claims 10 to 16 are implemented.

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