Method and apparatus for controlling air conditioner, air conditioner, computer readable storage medium

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an air conditioner, the air conditioner comprising a four-way valve for switching the flow direction of refrigerant under control, when the electromagnetic coil of the four-way valve is not powered, the slider of the four-way valve is in a refrigeration position; when the electromagnetic coil is powered in a forward direction, the slider is in a heating position; when the electromagnetic coil is powered in a reverse direction, the slider is bounced back to the refrigeration position; the method comprises the following steps: adjusting the position of the slider to reverse the four-way valve according to the operation mode selected by a user; judging whether the conduction direction of the four-way valve is normal according to the exhaust gas superheat degree, and adjusting the electromagnetic coil voltage to make the conduction direction of the four-way valve correspond to the operation mode selected by the user when the conduction direction of the four-way valve is abnormal. The method can avoid the switching failure of the four-way valve when switching the refrigeration mode or the heating mode, avoid the shutdown of the air conditioner caused by the switching failure of the four-way valve, and improve the use experience of the user.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a method and apparatus for controlling an air conditioner, an air conditioner, and a computer-readable storage medium. Background Technology

[0002] Currently, the four-way valve used in ordinary DC inverter air conditioners changes the direction of the magnetic field by changing the AC input, thereby controlling the opening of the four-way valve. However, changing the AC input places high demands on the power supply and system components, and can easily damage the circuit.

[0003] The related technology discloses a control circuit for a bistable solenoid valve, comprising: a magnetic induction coil of the bistable solenoid valve, a double-pole double-throw switch, and a voltage divider resistor; one end of the voltage divider resistor is connected to a first end of the magnetic induction coil, the first end of the magnetic induction coil serves as a first stationary contact of the first switch of the double-pole double-throw switch, and the second end of the magnetic induction coil serves as a second stationary contact of the first switch; the second end of the magnetic induction coil serves as a first stationary contact of the second switch of the double-pole double-throw switch, and the other end of the voltage divider resistor serves as a second stationary contact of the second switch; the first switch and the second switch each have a moving contact for connecting to a power source.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] Bistable four-way valves are prone to switching failures when switching between cooling and heating modes, which can lead to the air conditioner shutting down, affecting user experience and resulting in a poor user experience.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a method and apparatus for controlling an air conditioner, an air conditioner, and a computer-readable storage medium, so as to avoid switching failure of the four-way valve when switching between cooling mode and heating mode, avoid air conditioner shutdown due to four-way valve switching failure, and improve user experience.

[0009] In some embodiments, the air conditioner includes a four-way valve that controls the refrigerant flow direction. When the solenoid coil of the four-way valve is not energized, the slider of the four-way valve is in the cooling position; when the solenoid coil is energized in the forward direction, the slider is in the heating position; when the solenoid coil is energized in the reverse direction, the slider is bounced back to the cooling position. The method includes: adjusting the position of the slider according to the operating mode selected by the user to reverse the direction of the four-way valve; determining whether the conduction direction of the four-way valve is normal according to the exhaust superheat, and adjusting the voltage of the solenoid coil when the conduction direction of the four-way valve is abnormal so that the conduction direction of the four-way valve corresponds to the operating mode selected by the user.

[0010] Optionally, the position of the slider can be adjusted to switch the four-way valve according to the operating mode selected by the user, including: adjusting the position of the slider to switch the four-way valve according to the operating mode selected by the user, and / or the previous operating mode after startup.

[0011] Optionally, depending on the user-selected operating mode and / or the previous operating mode after startup, the position of the slider is adjusted to reverse the direction of the four-way valve, including: when the user-selected operating mode is cooling mode, and the previous operating mode after startup is non-heating mode or the first startup, controlling the solenoid coil to be de-energized, so that the slider is in the cooling position and thus the conduction direction of the four-way valve is the cooling direction; or, when the user-selected operating mode is cooling mode, and the previous operating mode after startup is heating mode, controlling the solenoid coil to be energized in reverse, so that the slider is bounced back to the cooling position and thus the conduction direction of the four-way valve is switched to the cooling direction; or, when the user-selected operating mode is heating mode, controlling the solenoid coil to be energized in the forward direction, so that the slider is in the heating position and thus the conduction direction of the four-way valve is the heating direction.

[0012] Optionally, the conduction direction of the four-way valve is determined based on the exhaust superheat, and when the conduction direction of the four-way valve is abnormal, the voltage of the solenoid coil is adjusted to make the conduction direction of the four-way valve correspond to the operating mode selected by the user, including:

[0013] If the exhaust superheat is normal, confirm that the four-way valve is in the correct direction; or,

[0014] In the event of abnormal exhaust superheat, determine that the four-way valve is abnormally oriented. If the four-way valve is abnormally oriented, adjust the electromagnetic coil voltage according to the exhaust superheat to make the four-way valve oriented in accordance with the operating mode selected by the user.

[0015] Optionally, the electromagnetic coil voltage can be adjusted according to the exhaust superheat to make the conduction direction of the four-way valve correspond to the operating mode selected by the user. This includes: adjusting the electromagnetic coil voltage according to the exhaust superheat, the operating mode selected by the user, and the previous operating mode after startup to make the conduction direction of the four-way valve correspond to the operating mode selected by the user, or issuing an alarm message for a four-way valve malfunction.

[0016] Optionally, the voltage of the solenoid coil is adjusted according to the exhaust superheat, the user-selected operating mode, and the previous operating mode after startup, so that the conduction direction of the four-way valve corresponds to the user-selected operating mode. This includes: when the user-selected operating mode is cooling mode, and the previous operating mode after startup is heating mode, increasing the reverse voltage of the solenoid coil according to the exhaust superheat and the magnetic coefficient of the solenoid coil so that the conduction direction of the four-way valve is cooling mode; or, when the user-selected operating mode is heating mode, increasing the forward voltage of the solenoid coil according to the exhaust superheat and the magnetic coefficient of the solenoid coil so that the conduction direction of the four-way valve is heating mode.

[0017] Optionally, in the event of an abnormal conduction direction of the four-way valve, the following additional method is also included: issuing a four-way valve fault alarm message when the user selects the cooling mode and the previous operating mode after startup was a non-heating mode or the first startup.

[0018] Optionally, in the event of an abnormal conduction direction of the four-way valve, the following additional method is also included: when the user selects the air supply mode as the operating mode, the conduction direction of the four-way valve remains unchanged.

[0019] Optionally, the reverse voltage of the electromagnetic coil is increased according to the exhaust superheat and the magnetic coefficient of the electromagnetic coil to make the conduction direction of the four-way valve the cooling direction, including: determining the voltage increase step size according to the magnetic coefficient of the electromagnetic coil; in the case of abnormal exhaust superheat or the cumulative voltage increase step size being less than the first voltage step size, increasing the reverse voltage of the electromagnetic coil according to the voltage increase step size and calculating the cumulative voltage increase step size until the exhaust superheat is normal or the cumulative voltage increase step size is equal to the first voltage step size, so that the slider is bounced back to the cooling position, thereby switching the conduction direction of the four-way valve to the cooling direction.

[0020] Optionally, after increasing the reverse voltage of the electromagnetic coil according to the voltage increase step and calculating the cumulative voltage increase step, the method further includes: when the exhaust superheat is normal, determining that the conduction direction of the four-way valve is normal and using the reverse voltage of the electromagnetic coil at this time as the electromagnetic coil voltage when switching from heating mode to cooling mode; or, when the exhaust superheat is abnormal and the cumulative voltage increase step is equal to the first voltage step, determining that the conduction direction of the four-way valve is abnormal and issuing an alarm message for a four-way valve malfunction.

[0021] Optionally, determining the voltage increment step based on the magnetic force coefficient of the electromagnetic coil includes: determining the electromagnetic coil voltage required when the electromagnetic coil magnetic force is the first magnetic force based on the magnetic force coefficient of the electromagnetic coil; and determining the electromagnetic coil voltage required when the electromagnetic coil magnetic force is the first magnetic force as the voltage increment step.

[0022] Specifically, the magnetic flux density of the electromagnetic coil can be 5.3F / 100V. The first magnetic force can be 1N. The first voltage step is the electromagnetic voltage required when the electromagnetic coil has the second magnetic force. The second magnetic force can be 5N.

[0023] Optionally, the positive voltage of the electromagnetic coil is increased according to the exhaust superheat and the magnetic coefficient of the electromagnetic coil so that the conduction direction of the four-way valve is the heating direction, including: determining the voltage increase step size according to the magnetic coefficient of the electromagnetic coil; in the case of abnormal exhaust superheat or the cumulative voltage increase step size being less than the first voltage step size, increasing the positive voltage of the electromagnetic coil according to the voltage increase step size and calculating the cumulative voltage increase step size until the exhaust superheat is normal or the cumulative voltage increase step size is equal to the first voltage step size.

[0024] Optionally, after increasing the positive voltage of the electromagnetic coil according to the voltage increase step and calculating the cumulative voltage increase step, the method further includes: when the exhaust superheat is normal, determining that the conduction direction of the four-way valve is normal and using the positive voltage of the electromagnetic coil at this time as the electromagnetic coil voltage when switching from cooling mode to heating mode, so that the slider is in the heating position and thus the conduction direction of the four-way valve is the heating direction; or, when the exhaust superheat is abnormal and the cumulative voltage increase step is equal to the first voltage step, determining that the conduction direction of the four-way valve is abnormal and issuing an alarm message for a four-way valve malfunction.

[0025] Optionally, determining the voltage increment step based on the magnetic force coefficient of the electromagnetic coil includes: determining the electromagnetic coil voltage required when the electromagnetic coil magnetic force is the first magnetic force based on the magnetic force coefficient of the electromagnetic coil; and determining the electromagnetic coil voltage required when the electromagnetic coil magnetic force is the first magnetic force as the voltage increment step.

[0026] In some embodiments, the air conditioner includes a four-way valve that controls the switching of refrigerant flow direction; when the solenoid coil of the four-way valve is not energized, the slider of the four-way valve is in the cooling position; when the solenoid coil is energized in the forward direction, the slider of the four-way valve is in the heating position; when the solenoid coil is energized in the reverse direction, the slider of the four-way valve is bounced back to the cooling position; the device includes: a reversing module configured to adjust the position of the slider to reversing the four-way valve according to the operating mode selected by the user; and a judgment and adjustment module configured to determine whether the conduction direction of the four-way valve is normal based on the exhaust superheat, and to adjust the voltage of the solenoid coil to make the conduction direction of the four-way valve correspond to the operating mode selected by the user when the conduction direction of the four-way valve is abnormal.

[0027] In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to execute the method for controlling an air conditioner when the program instructions are executed.

[0028] In some embodiments, the air conditioner includes: an air conditioner body, including a four-way valve that controls the switching of refrigerant flow direction; when the solenoid coil of the four-way valve is not energized, the slider is in the cooling position; when the solenoid coil is energized in the forward direction, the slider is in the heating position; when the solenoid coil is energized in the reverse direction, the slider is bounced back to the cooling position; the device for controlling the air conditioner is installed on the air conditioner body.

[0029] In some embodiments, the computer-readable storage medium stores program instructions that, when executed, cause a computer to perform the method for controlling an air conditioner.

[0030] The method and apparatus for controlling an air conditioner, the air conditioner, and the computer-readable storage medium provided in this disclosure can achieve the following technical effects:

[0031] Adjusting the slider to the cooling or heating position according to the user's selected operating mode helps ensure the four-way valve's conduction direction is in either cooling or heating mode, thus enabling the air conditioner to operate in cooling or heating mode. The exhaust superheat is then used to determine if the four-way valve's conduction direction is normal. If the four-way valve's conduction direction is abnormal, the solenoid coil voltage is adjusted to ensure the four-way valve's conduction direction corresponds to the user's selected operating mode. This prevents mismatches caused by high or low temperatures, vibration, or shaking. When switching between cooling and heating modes, this prevents four-way valve switching malfunctions, avoiding air conditioner shutdowns due to these malfunctions and improving the user experience.

[0032] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0033] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0034] Figure 1 This is a schematic diagram of a four-way valve for an air conditioner provided in an embodiment of this disclosure;

[0035] Figure 2 This is a schematic diagram of a method for controlling an air conditioner provided in an embodiment of this disclosure;

[0036] Figure 3This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0037] Figure 4 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0038] Figure 5 This is a schematic diagram of a device for controlling an air conditioner provided in an embodiment of this disclosure;

[0039] Figure 6 This is a schematic diagram of another device for controlling an air conditioner provided in an embodiment of this disclosure;

[0040] Figure 7 This is a schematic diagram of an air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0041] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0042] The terms "first," "second," etc., used in the specification and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0043] Unless otherwise stated, the term "multiple" means two or more.

[0044] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0045] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0046] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0047] Combination Figure 1As shown, this embodiment of the present disclosure provides a four-way valve for an air conditioner, which can controllably switch the refrigerant flow direction. When the solenoid coil 1 of the four-way valve is not energized, the slider 3 of the four-way valve is in the cooling position; when the solenoid coil 1 is energized in the forward direction, the slider 3 is in the heating position; when the solenoid coil 1 is energized in the reverse direction, the slider 3 is bounced back to the cooling position.

[0048] The four-way valve also includes a spring 2 and a permanent magnet 4. The permanent magnet 4 is located at the end of the electromagnetic coil 1. When the electromagnetic coil 1 is not energized, the sum of the spring force of the spring 2 and the frictional force of the slider 3 is greater than the magnetic force of the permanent magnet 4, so that the slider 3 is in the cooling position. When the electromagnetic coil 1 is energized in the forward direction, the sum of the spring force of the spring 2 and the frictional force of the slider 3 is less than the sum of the magnetic force of the permanent magnet 4 and the magnetic force of the electromagnetic coil 1, so that the slider 3 is in the heating position. When the electromagnetic coil 1 is energized in the reverse direction, the sum of the magnetic force of the electromagnetic coil 1 and the frictional force of the slider 3 is greater than the sum of the spring force of the spring 2 and the magnetic force of the permanent magnet 4, so that the slider 3 is bounced back to the cooling position.

[0049] Optionally, the distance between the cooling position and the permanent magnet 4 is greater than the distance between the heating position and the permanent magnet 4.

[0050] The four-way valve for an air conditioner provided in this embodiment has a permanent magnet 4 at the end of the electromagnetic coil 1. Through the interaction of the spring force 2 of the four-way valve, the friction force of the slider 3, the magnetic force of the electromagnetic coil 1, and the magnetic force of the permanent magnet 4, the slider 3 is adjusted to the cooling or heating position according to the operating mode selected by the user. This makes it easier to make the conduction direction of the four-way valve the cooling or heating direction, so that the air conditioner operates in cooling mode or heating mode.

[0051] Combination Figure 2 As shown in the embodiments of this disclosure, a method for controlling an air conditioner is provided, comprising:

[0052] S201, the air conditioner adjusts the position of the slider according to the operating mode selected by the user to switch the four-way valve.

[0053] S202, the air conditioner determines whether the conduction direction of the four-way valve is normal based on the exhaust superheat, and adjusts the electromagnetic coil voltage when the conduction direction of the four-way valve is abnormal so that the conduction direction of the four-way valve corresponds to the operating mode selected by the user.

[0054] The method for controlling an air conditioner provided in this disclosure adjusts the slider to the cooling or heating position according to the user-selected operating mode. This ensures that the four-way valve's conduction direction is either cooling or heating, thus enabling the air conditioner to operate in cooling or heating mode. Furthermore, the method uses exhaust superheat to determine if the four-way valve's conduction direction is normal, and / or adjusts the electromagnetic coil voltage to ensure the four-way valve's conduction direction corresponds to the user-selected operating mode. This prevents mismatches between the four-way valve's conduction direction and the user-selected operating mode caused by high or low temperatures or vibration. When switching between cooling and heating modes, this method avoids four-way valve switching malfunctions, preventing air conditioner shutdowns due to these malfunctions and improving the user experience.

[0055] It should be noted that if the four-way valve's conduction direction is normal, it means that the valve's conduction direction corresponds to the user-selected operating mode. If the four-way valve's conduction direction is abnormal, it means that the valve's conduction direction does not correspond to the user-selected operating mode.

[0056] Optionally, the air conditioner adjusts the position of the slider to switch the four-way valve according to the operating mode selected by the user, including: the air conditioner adjusts the position of the slider to switch the four-way valve according to the operating mode selected by the user, and / or the previous operating mode after startup.

[0057] In this way, by adjusting the slider to the cooling or heating position according to the user's selected operating mode and / or the previous operating mode after startup, it is beneficial to make the four-way valve open in the cooling or heating direction, thereby enabling the air conditioner to operate in cooling or heating mode.

[0058] Optionally, the air conditioner adjusts the position of the slider to reverse the four-way valve according to the user-selected operating mode and / or the previous operating mode after startup. This includes: when the user-selected operating mode is cooling mode, and the previous operating mode after startup was non-heating mode or the first startup, the air conditioner controls the solenoid coil to be de-energized, so that the slider is in the cooling position, thereby changing the conduction direction of the four-way valve to the cooling direction. Alternatively, when the user-selected operating mode is cooling mode, and the previous operating mode after startup was heating mode, the air conditioner controls the solenoid coil to be energized in reverse, so that the slider is returned to the cooling position, thereby changing the conduction direction of the four-way valve to the cooling direction. Alternatively, when the user-selected operating mode is heating mode, the air conditioner controls the solenoid coil to be energized in the forward direction, so that the slider is in the heating position, thereby changing the conduction direction of the four-way valve to the heating direction.

[0059] Thus, if the user selects cooling mode, and the previous operating mode after power-on was non-heating mode or the first power-on, the slider will still be in the cooling position and the electromagnetic coil will be either reverse-energized or unenergized before switching to cooling mode. After switching to cooling mode, the sum of the spring force and the slider friction force does not need to be energized to ensure that the slider is in the cooling position. If the user selects cooling mode, and the previous operating mode after power-on was heating mode, the slider will be in the heating position and the electromagnetic coil will be forward-energized before switching to cooling mode. After switching to cooling mode, the electromagnetic coil needs to be reverse-energized so that the sum of the electromagnetic coil magnetic force and the slider friction force is greater than the sum of the spring force and the permanent magnet magnetic force, causing the slider to spring back to the cooling position. If the user selects heating mode, the slider will be in the cooling position before switching to heating mode. In this case, the electromagnetic coil needs to be forward-energized so that the sum of the spring force and the slider friction force is less than the sum of the permanent magnet magnetic force and the electromagnetic coil magnetic force, causing the slider to be in the heating position.

[0060] Optionally, the air conditioner determines whether the four-way valve is in the correct direction based on the exhaust superheat, and adjusts the solenoid coil voltage when the four-way valve is in the wrong direction to make the four-way valve's direction correspond to the user-selected operating mode, including:

[0061] If the air conditioner's exhaust superheat is normal, confirm that the four-way valve is in the correct direction. Alternatively,

[0062] If the air conditioner experiences abnormal exhaust superheat, it determines that the four-way valve's conduction direction is abnormal. When this occurs, the air conditioner adjusts the solenoid coil voltage based on the exhaust superheat to align the four-way valve's conduction direction with the user-selected operating mode.

[0063] Specifically, exhaust superheat is determined as follows: exhaust superheat is determined as the difference between exhaust temperature and coil temperature.

[0064] The exhaust superheat is determined to be normal as follows: the exhaust superheat equals the preset temperature. The preset temperature is correlated with the operating temperature.

[0065] The following method is used to determine if the exhaust superheat is normal: the exhaust superheat is not equal to the preset temperature.

[0066] For example, in a 35°C cooling operation with a preset temperature of 50°C, if the exhaust temperature is 90°C and the coil temperature is 40°C, the calculated exhaust superheat is 50°C, which matches the preset temperature, indicating normal exhaust superheat. Similarly, in a 7°C heating operation with a preset temperature of 40°C, if the exhaust temperature is 85°C and the coil temperature is 45°C, the calculated exhaust superheat is 40°C, also matching the preset temperature, indicating normal exhaust superheat. The preset temperature can be adjusted based on different operating conditions.

[0067] Therefore, if the exhaust superheat is normal, it indicates that the four-way valve is operating in the correct direction. If the exhaust superheat is abnormal, it indicates that the four-way valve is operating in the wrong direction. In this case, the voltage of the solenoid coil needs to be adjusted according to the exhaust superheat to ensure that the four-way valve's operating direction corresponds to the user-selected operating mode. This prevents the four-way valve's operating direction from becoming mismatched with the user-selected operating mode due to high or low temperatures or vibration. When switching between cooling and heating modes, this prevents the four-way valve from malfunctioning and causing the air conditioner to shut down, thus improving the user experience.

[0068] Optionally, the air conditioner adjusts the voltage of the solenoid coil according to the exhaust superheat to make the conduction direction of the four-way valve correspond to the operating mode selected by the user, including: the air conditioner adjusts the voltage of the solenoid coil according to the exhaust superheat, the operating mode selected by the user, and the previous operating mode after startup to make the conduction direction of the four-way valve correspond to the operating mode selected by the user or to issue an alarm message for a four-way valve malfunction.

[0069] Therefore, if the exhaust superheat is abnormal or the four-way valve's conduction direction is abnormal, the solenoid coil voltage needs to be adjusted according to the exhaust superheat, the user-selected operating mode, and the previous operating mode after startup to ensure the four-way valve's conduction direction corresponds to the user-selected operating mode. This prevents mismatches between the four-way valve's conduction direction and the user-selected operating mode caused by high or low temperatures or vibration. When switching between cooling and heating modes, this prevents four-way valve switching malfunctions and air conditioner shutdowns due to these malfunctions, thus improving the user experience.

[0070] Optionally, the air conditioner adjusts the voltage of the solenoid coil according to the exhaust superheat, the user-selected operating mode, and the previous operating mode after startup, so that the conduction direction of the four-way valve corresponds to the user-selected operating mode. This includes: when the user-selected operating mode is cooling mode, and the previous operating mode after startup was heating mode, increasing the reverse voltage of the solenoid coil according to the exhaust superheat and the magnetic flux density of the solenoid coil to make the conduction direction of the four-way valve the cooling direction. Alternatively, when the user-selected operating mode is heating mode, increasing the forward voltage of the solenoid coil according to the exhaust superheat and the magnetic flux density of the solenoid coil to make the conduction direction of the four-way valve the heating direction.

[0071] Thus, under the premise of an abnormal four-way valve conduction direction, if the user selects the cooling mode and the previous operating mode after startup was heating mode, it means the slider is still in the heating position. In this case, the electromagnetic coil's magnetic force is too weak to spring the slider back to the cooling position. Therefore, based on the exhaust superheat and the electromagnetic coil's magnetic coefficient, the reverse voltage of the electromagnetic coil is increased to increase the coil's magnetic force, causing the slider to spring back to the cooling position, thus making the four-way valve conduction direction the cooling direction. If the user selects the heating mode, it means the slider is still in the cooling position. In this case, the electromagnetic coil's magnetic force is too weak to attract the slider to the heating position. Therefore, based on the exhaust superheat and the electromagnetic coil's magnetic coefficient, the forward voltage of the electromagnetic coil is increased to increase the coil's magnetic force, causing the slider to be attracted to the heating position, thus making the four-way valve conduction direction the heating direction. This prevents four-way valve switching malfunctions when switching between cooling and heating modes, avoiding air conditioner shutdowns due to four-way valve switching failures, and improving the user experience.

[0072] Optionally, the air conditioner increases the reverse voltage of the electromagnetic coil based on the exhaust superheat and the magnetic flux density of the electromagnetic coil to switch the conduction direction of the four-way valve to the cooling direction. This includes: the air conditioner determining the voltage increase step size according to the magnetic flux density of the electromagnetic coil. If the exhaust superheat is abnormal or the cumulative voltage increase step size is less than the first voltage step size, the air conditioner increases the reverse voltage of the electromagnetic coil according to the voltage increase step size and calculates the cumulative voltage increase step size until the exhaust superheat is normal or the cumulative voltage increase step size equals the first voltage step size, causing the slider to spring back to the cooling position, thereby switching the conduction direction of the four-way valve to the cooling direction.

[0073] In this way, the voltage increase step size is determined according to the magnetic force coefficient of the electromagnetic coil. If the exhaust superheat is abnormal or the cumulative voltage increase step size is small, less than the first voltage step size, the reverse voltage of the electromagnetic coil is increased according to the voltage increase step size until the conduction direction is normal, which is represented by the normal exhaust superheat, or the cumulative voltage increase step size reaches the first voltage step size. This is beneficial to increase the reverse voltage of the electromagnetic coil as needed, avoiding energy loss or burning out of the electromagnetic coil caused by excessive voltage.

[0074] Optionally, after the air conditioner increases the reverse voltage of the electromagnetic coil according to the voltage increase step size and calculates the cumulative voltage increase step size, it further includes: when the exhaust superheat is normal, the air conditioner determines that the conduction direction of the four-way valve is normal and uses the reverse voltage of the electromagnetic coil at this time as the electromagnetic coil voltage when switching from heating mode to cooling mode. Alternatively, when the exhaust superheat is abnormal and the cumulative voltage increase step size is equal to the first voltage step size, the air conditioner determines that the conduction direction of the four-way valve is abnormal and issues an alarm message for a four-way valve malfunction.

[0075] In this way, by increasing the reverse voltage of the solenoid coil according to the voltage increment step and calculating the cumulative voltage increment step, if the exhaust superheat is normal, the four-way valve's conduction direction is determined to be normal. The reverse voltage of the solenoid coil at this point is memorized and used as the solenoid coil voltage when switching from heating mode to cooling mode. This helps avoid abnormal exhaust superheat caused by abnormal four-way valve conduction direction during the next switch from heating mode to cooling mode. If the exhaust superheat is abnormal and the cumulative voltage increment step reaches the first voltage step, adjusting the reverse voltage of the solenoid coil cannot restore the four-way valve's conduction direction to normal. In this case, the four-way valve's conduction direction is determined to be abnormal, and a four-way valve fault alarm is issued. Thus, when switching cooling modes, the four-way valve's switching failure is avoided, preventing air conditioner shutdown due to four-way valve switching failure and improving the user experience.

[0076] Optionally, the air conditioner determines the voltage increment step based on the magnetic force coefficient of the electromagnetic coil, including: the air conditioner determines the required electromagnetic coil voltage when the electromagnetic coil's magnetic force is at the first magnetic force based on the electromagnetic coil's magnetic force coefficient. The air conditioner determines the required electromagnetic coil voltage when the electromagnetic coil's magnetic force is at the first magnetic force as the voltage increment step.

[0077] Specifically, the magnetic flux density of the electromagnetic coil can be 5.3F / 100V. The first magnetic force can be 1N. The first voltage step is the electromagnetic voltage required when the electromagnetic coil has the second magnetic force. The second magnetic force can be 5N.

[0078] In this way, by utilizing the magnetic force coefficient of the electromagnetic coil, the required electromagnetic coil voltage when the magnetic force of the electromagnetic coil is at the first magnetic force can be determined as the voltage increment step. This allows for more accurate determination of the voltage increment step.

[0079] Optionally, the air conditioner increases the positive voltage of the electromagnetic coil based on the exhaust superheat and the magnetic flux density of the electromagnetic coil to make the conduction direction of the four-way valve the heating direction. This includes: the air conditioner determining the voltage increase step size according to the magnetic flux density of the electromagnetic coil. If the exhaust superheat is abnormal or the cumulative voltage increase step size is less than the first voltage step size, the air conditioner increases the positive voltage of the electromagnetic coil according to the voltage increase step size and calculates the cumulative voltage increase step size until the exhaust superheat is normal or the cumulative voltage increase step size equals the first voltage step size.

[0080] In this way, the voltage increase step size is determined according to the magnetic force coefficient of the electromagnetic coil. If the exhaust superheat is abnormal or the cumulative voltage increase step size is small, less than the first voltage step size, the positive voltage of the electromagnetic coil is increased according to the voltage increase step size until the conduction direction is normal, which is represented by the normal exhaust superheat, or the cumulative voltage increase step size reaches the first voltage step size. This is beneficial to increase the positive voltage of the electromagnetic coil as needed, avoiding energy loss or burning out of the electromagnetic coil caused by excessive voltage.

[0081] Optionally, after the air conditioner increases the positive voltage of the electromagnetic coil according to the voltage increase step and calculates the cumulative voltage increase step, it further includes: when the exhaust superheat is normal, the air conditioner determines that the conduction direction of the four-way valve is normal and uses the positive voltage of the electromagnetic coil at this time as the electromagnetic coil voltage when switching from cooling mode to heating mode, so that the slider is in the heating position and the conduction direction of the four-way valve is the heating direction. Alternatively, when the exhaust superheat is abnormal and the cumulative voltage increase step is equal to the first voltage step, the air conditioner determines that the conduction direction of the four-way valve is abnormal and issues a four-way valve fault alarm message.

[0082] In this way, by increasing the positive voltage of the solenoid coil according to the voltage increment step and calculating the cumulative voltage increment step, if the exhaust superheat is normal, the four-way valve's conduction direction is determined to be normal, and the positive voltage of the solenoid coil at this time is memorized and used as the solenoid coil voltage when switching from heating mode to cooling mode. This helps to avoid abnormal exhaust superheat caused by abnormal four-way valve conduction direction when switching from cooling mode to heating mode in the next cycle. If the exhaust superheat is abnormal and the cumulative voltage increment step reaches the first voltage step, adjusting the positive voltage of the solenoid coil cannot restore the four-way valve's conduction direction to normal. At this time, the four-way valve's conduction direction is determined to be abnormal, and a four-way valve fault alarm message is issued. In this way, when switching heating mode, the four-way valve switching failure is avoided, preventing the air conditioner from stopping due to the four-way valve switching failure, thus improving the user experience.

[0083] Optionally, the air conditioner determines the voltage increment step based on the magnetic force coefficient of the electromagnetic coil, including: the air conditioner determines the required electromagnetic coil voltage when the electromagnetic coil's magnetic force is at the first magnetic force based on the electromagnetic coil's magnetic force coefficient. The air conditioner determines the required electromagnetic coil voltage when the electromagnetic coil's magnetic force is at the first magnetic force as the voltage increment step.

[0084] In this way, by utilizing the magnetic force coefficient of the electromagnetic coil, the required electromagnetic coil voltage when the magnetic force of the electromagnetic coil is at the first magnetic force can be determined as the voltage increment step. This allows for more accurate determination of the voltage increment step.

[0085] Optionally, in the event of an abnormal conduction direction of the four-way valve, the following additional method is also included: when the air conditioner is operating in cooling mode selected by the user, and the previous operating mode after startup was non-heating mode or the first startup, a four-way valve fault alarm message is issued.

[0086] Thus, if the user selects the cooling mode when the four-way valve is in an abnormal direction, and the previous operating mode after startup was a non-heating mode or the first startup, it means that the slider is still in the cooling position. In this case, the cooling mode can be operated without changing the direction of the four-way valve, but a four-way valve fault alarm message needs to be issued.

[0087] Optionally, in the event of an abnormal conduction direction of the four-way valve, the following additional method is also included: when the air conditioner is set to the air supply mode by the user, the conduction direction of the four-way valve remains unchanged.

[0088] Therefore, if the four-way valve is in an abnormal direction, but the user has selected the air supply mode, there is no need for refrigerant circulation. In this case, the four-way valve can be kept in the same direction.

[0089] Combination Figure 3 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0090] S301, the air conditioner adjusts the position of the slider according to the operating mode selected by the user to switch the four-way valve.

[0091] S302, Assuming the air conditioner's exhaust superheat is normal, confirm that the four-way valve's conduction direction is correct. Or,

[0092] S303, when the air conditioner has abnormal exhaust superheat, it is determined that the four-way valve is in an abnormal direction.

[0093] S304, In the event of an abnormal conduction direction of the four-way valve, the air conditioner adjusts the voltage of the electromagnetic coil according to the exhaust superheat to make the conduction direction of the four-way valve correspond to the operating mode selected by the user.

[0094] The method for controlling an air conditioner provided in this disclosure, by adjusting the slider to the cooling or heating position according to the user-selected operating mode, facilitates ensuring that the four-way valve's conduction direction is either cooling or heating, thereby enabling the air conditioner to operate in cooling or heating mode. If the exhaust superheat is normal, it indicates that the four-way valve's conduction direction is normal. If the exhaust superheat is abnormal, it indicates that the four-way valve's conduction direction is abnormal. In this case, it is necessary to adjust the electromagnetic coil voltage according to the exhaust superheat to ensure that the four-way valve's conduction direction corresponds to the user-selected operating mode. This avoids mismatches between the four-way valve's conduction direction and the user-selected operating mode caused by high or low temperatures or vibration. When switching between cooling and heating modes, it prevents four-way valve switching malfunctions, avoiding air conditioner shutdowns due to four-way valve switching failures, thus improving the user experience.

[0095] Combination Figure 4 As shown in the embodiments of this disclosure, another method for controlling an air conditioner is provided, including:

[0096] S401, the air conditioner adjusts the position of the slider according to the operating mode selected by the user to switch the four-way valve.

[0097] S402, Assuming the air conditioner's exhaust superheat is normal, confirm the four-way valve's direction of operation is correct. Or,

[0098] S403, when the air conditioner has abnormal exhaust superheat, it is determined that the four-way valve is in an abnormal direction.

[0099] S404, the air conditioner issues a four-way valve fault alarm if the user selects cooling mode and the previous operating mode after startup was non-heating mode or if it is the first time the unit is started. Alternatively,

[0100] S405, when the air conditioner is set to cooling mode by the user, and the previous operating mode after startup was heating mode, the reverse voltage of the solenoid coil is increased based on the exhaust superheat and the magnetic coefficient of the solenoid coil to make the four-way valve open in the cooling direction. Alternatively,

[0101] S406, when the user selects the heating mode for the air conditioner, the positive voltage of the electromagnetic coil is increased according to the exhaust superheat and the magnetic coefficient of the electromagnetic coil so that the conduction direction of the four-way valve is the heating direction.

[0102] S407, when the user selects the air supply mode as the operating mode, the four-way valve remains in the same direction.

[0103] The method for controlling an air conditioner provided in this disclosure adjusts the slider to the cooling or heating position according to the user-selected operating mode. This ensures that the four-way valve's conduction direction is either cooling or heating, thus allowing the air conditioner to operate in cooling or heating mode. If the exhaust superheat is normal, the four-way valve's conduction direction is normal. If the exhaust superheat is abnormal, the four-way valve's conduction direction is abnormal. In this case, the electromagnetic coil voltage needs to be adjusted according to the exhaust superheat to make the four-way valve's conduction direction correspond to the user-selected operating mode. That is, if the user selects cooling mode, and the previous operating mode after startup was non-heating mode or the first startup, the slider is still in the cooling position. In this case, it is not necessary to change the four-way valve's conduction direction to operate in cooling mode, but a four-way valve fault alarm message needs to be issued. If the user selects cooling mode, and the previous operating mode after startup was heating mode, the slider will still be in the heating position. In this case, the electromagnetic coil's magnetic force is too weak to return the slider to the cooling position. Therefore, based on the exhaust superheat and the electromagnetic coil's magnetic coefficient, the reverse voltage of the electromagnetic coil is increased to increase its magnetic force, causing the slider to return to the cooling position, thus making the four-way valve's conduction direction the cooling direction. If the user selects heating mode, the slider will still be in the cooling position. In this case, the electromagnetic coil's magnetic force is too weak to attract the slider to the heating position. Therefore, based on the exhaust superheat and the electromagnetic coil's magnetic coefficient, the forward voltage of the electromagnetic coil is increased to increase its magnetic force, causing the slider to be attracted to the heating position, thus making the four-way valve's conduction direction the heating direction. If the four-way valve's conduction direction is abnormal, but the user selects fan mode, refrigerant circulation is not required. Therefore, simply maintain the four-way valve's conduction direction unchanged. Avoid mismatches between the four-way valve's conduction direction and the user's selected operating mode caused by high or low temperatures or vibration. When switching between cooling and heating modes, prevent the four-way valve from malfunctioning, avoid air conditioner shutdown due to four-way valve switching failure, and improve the user experience.

[0104] Combination Figure 5 As shown, this embodiment of the present disclosure provides a device 200 for controlling an air conditioner, including a reversing module 501 and a judgment and adjustment module 502. The reversing module 501 is configured to adjust the position of a slider to reversing a four-way valve according to a user-selected operating mode. The judgment and adjustment module 502 is configured to determine whether the conduction direction of the four-way valve is normal based on the exhaust superheat, and when the conduction direction of the four-way valve is abnormal, adjust the voltage of the solenoid coil to make the conduction direction of the four-way valve correspond to the user-selected operating mode.

[0105] The device 200 for controlling an air conditioner provided in this embodiment adjusts the slider to the cooling or heating position according to the user-selected operating mode. This ensures that the four-way valve's conduction direction is either cooling or heating, thus enabling the air conditioner to operate in cooling or heating mode. Furthermore, the conduction direction of the four-way valve is determined by the exhaust superheat, and / or the electromagnetic coil voltage is adjusted to ensure the four-way valve's conduction direction corresponds to the user-selected operating mode. This prevents mismatches between the four-way valve's conduction direction and the user-selected operating mode caused by high or low temperatures or vibration. When switching between cooling and heating modes, this prevents four-way valve switching malfunctions and air conditioner shutdowns due to these malfunctions, thus improving the user experience.

[0106] Combination Figure 6 As shown, this disclosure provides an apparatus 70 for controlling an air conditioner, including a processor 700 and a memory 701. Optionally, the apparatus 70 may further include a communication interface 702 and a bus 703. The processor 700, communication interface 702, and memory 701 can communicate with each other via the bus 703. The communication interface 702 can be used for information transmission. The processor 700 can call logical instructions in the memory 701 to execute the method for controlling the air conditioner described in the above embodiment.

[0107] Furthermore, the logic instructions in the aforementioned memory 701 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0108] The memory 701, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 700 executes functional applications and data processing by running the program instructions / modules stored in the memory 701, thereby implementing the method for controlling the air conditioner described in the above embodiments.

[0109] The memory 701 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 701 may include high-speed random access memory and may also include non-volatile memory.

[0110] Combination Figure 7As shown, this disclosure provides an air conditioner 100, including an air conditioner body and the aforementioned device 200 (70) for controlling the air conditioner. The device 200 (70) for controlling the air conditioner is installed on the air conditioner body. The installation relationship described herein is not limited to placement inside the air conditioner body, but also includes installation and connection with other components of the air conditioner 100, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the device 200 (70) for controlling the air conditioner can be adapted to feasible air conditioner bodies to achieve other feasible embodiments.

[0111] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner.

[0112] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, such as a USB flash drive, external hard drive, read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk, etc., and other media capable of storing program code.

[0113] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for the purpose of describing embodiments only. As used in the description of embodiments, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Unless otherwise specified, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on its differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, then the relevant parts can be referred to the description of the method section.

[0114] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0115] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0116] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized in that, The air conditioner includes a four-way valve that controls the switching of refrigerant flow; when the solenoid coil of the four-way valve is not energized, the slider of the four-way valve is in the cooling position; when the solenoid coil is energized in the forward direction, the slider is in the heating position; when the solenoid coil is energized in the reverse direction, the slider is pushed back to the cooling position; the method includes: Adjust the position of the slider according to the operating mode selected by the user to switch the four-way valve; Determine whether the four-way valve is in the correct direction based on the exhaust superheat. In the event of an abnormal conduction direction of the four-way valve, adjust the electromagnetic coil voltage according to the exhaust superheat, the user-selected operating mode, and the previous operating mode after startup so that the conduction direction of the four-way valve corresponds to the user-selected operating mode. Specifically, adjusting the electromagnetic coil voltage according to the exhaust superheat, the user-selected operating mode, and the previous operating mode after startup to make the conduction direction of the four-way valve correspond to the user-selected operating mode includes: when the user-selected operating mode is cooling mode and the previous operating mode after startup is heating mode, increasing the reverse voltage of the electromagnetic coil according to the exhaust superheat and the magnetic coefficient of the electromagnetic coil to make the conduction direction of the four-way valve the cooling direction.

2. The method according to claim 1, characterized in that, Determine whether the four-way valve is functioning correctly based on the exhaust superheat, including: If the exhaust superheat is normal, confirm that the four-way valve is in the correct direction; or, In cases of abnormal exhaust superheat, the abnormal conduction direction of the four-way valve is determined.

3. The method according to claim 1, characterized in that, Based on the exhaust superheat, the user-selected operating mode, and the previous operating mode after startup, the electromagnetic coil voltage is adjusted to ensure that the conduction direction of the four-way valve corresponds to the user-selected operating mode. This also includes: When the user selects the heating mode, the positive voltage of the electromagnetic coil is increased according to the exhaust superheat and the magnetic coefficient of the electromagnetic coil so that the conduction direction of the four-way valve is the heating direction.

4. The method according to claim 1, characterized in that, In cases where the four-way valve's conduction direction is abnormal, the following also applies: If the user selects the cooling mode and the previous operating mode after startup was non-heating mode or it is the first startup, a four-way valve fault alarm message will be issued.

5. The method according to any one of claims 1 to 4, characterized in that, Adjusting the slider position according to the user-selected operating mode to switch the four-way valve includes: Adjust the position of the slider to switch the four-way valve according to the operating mode selected by the user and / or the previous operating mode after power-on.

6. A device for controlling an air conditioner, characterized in that, The air conditioner includes a four-way valve that controls the switching of refrigerant flow; when the solenoid coil of the four-way valve is not energized, the slider is in the cooling position; when the solenoid coil is energized in the forward direction, the slider is in the heating position; when the solenoid coil is energized in the reverse direction, the slider is pushed back to the cooling position; the device includes: The reversing module is configured to adjust the position of the slider according to the user-selected operating mode to reversing the four-way valve; The judgment and adjustment module is configured to determine whether the conduction direction of the four-way valve is normal based on the exhaust superheat. If the conduction direction of the four-way valve is abnormal, the electromagnetic coil voltage is adjusted according to the exhaust superheat, the user-selected operating mode, and the previous operating mode after startup so that the conduction direction of the four-way valve corresponds to the user-selected operating mode. Specifically, adjusting the electromagnetic coil voltage according to the exhaust superheat, the user-selected operating mode, and the previous operating mode after startup to make the conduction direction of the four-way valve correspond to the user-selected operating mode includes: when the user-selected operating mode is cooling mode and the previous operating mode after startup is heating mode, increasing the reverse voltage of the electromagnetic coil according to the exhaust superheat and the magnetic coefficient of the electromagnetic coil to make the conduction direction of the four-way valve the cooling direction.

7. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the method for controlling an air conditioner as described in any one of claims 1 to 5.

8. An air conditioner, characterized in that, include: The air conditioner body includes a four-way valve that controls the switching of refrigerant flow; when the solenoid coil of the four-way valve is not energized, the slider of the four-way valve is in the cooling position; when the solenoid coil is energized in the forward direction, the slider is in the heating position; when the solenoid coil is energized in the reverse direction, the slider is bounced back to the cooling position. The device for controlling an air conditioner as described in claim 6 or 7 is installed on the air conditioner body.

9. A computer-readable storage medium storing program instructions, characterized in that, When the program instructions are executed, they cause the computer to perform the method for controlling an air conditioner as described in any one of claims 1 to 5.

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