Control method, air conditioner and computer readable storage medium

Abstract

The application discloses a control method, an air conditioner and a computer readable storage medium. The control method comprises: when indoor temperature reaches a set temperature and indoor humidity is greater than a set humidity, controlling a fixed-frequency compressor of the air conditioner to start or maintain operation. When an evaporator temperature of the air conditioner is greater than or equal to a predetermined value, reducing a rotating speed of an evaporator-side fan of the air conditioner. The control method controls the fixed-frequency compressor to start or maintain operation when the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, maintains a dehumidification effect and avoids affecting the dehumidification effect due to shutdown of the fixed-frequency compressor. In addition, when a refrigerating capacity of the air conditioner is constant, a dehumidification capacity and an indoor temperature change amount are inversely related, and when a wind speed of the evaporator-side fan is too large, an indoor air separation moisture effect is poor, so that the dehumidification capacity is reduced. Therefore, the control method controls the rotating speed of the evaporator-side fan to be reduced to improve the dehumidification effect, and simultaneously adjusts the indoor temperature change amount and reduces energy consumption of an electric heater.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a control method, an air conditioner, and a computer-readable storage medium. Background Technology

[0002] In related technologies, air conditioners using fixed-frequency compressors stop operating once the set temperature is reached, thus losing their dehumidification effect. Existing technologies have revealed methods to increase indoor temperature by using electric heating to compensate for heat loss, thereby preventing the compressor from stopping when the set temperature is reached. However, this method suffers from high energy consumption. Summary of the Invention

[0003] The present invention provides a control method, an air conditioner, and a computer-readable storage medium.

[0004] This invention provides a control method for controlling an air conditioner. The control method includes:

[0005] When the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, the fixed-frequency compressor of the air conditioner is controlled to start or maintain operation.

[0006] When the evaporator temperature of the air conditioner is greater than or equal to a predetermined value, the rotational speed of the evaporator-side fan of the air conditioner is reduced.

[0007] The control method of this invention controls the fixed-frequency compressor to start or maintain operation when the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, thus maintaining the dehumidification effect and avoiding the impact of the fixed-frequency compressor stopping on the dehumidification effect. Furthermore, when the cooling capacity of the air conditioner is constant, the dehumidification capacity and the change in indoor temperature are inversely correlated, and when the fan speed on the evaporator side is too high, the effect of separating moisture from the indoor air deteriorates, resulting in a decrease in the dehumidification capacity. Therefore, the control method controls the speed of the evaporator side fan to reduce the dehumidification effect, while simultaneously adjusting the change in indoor temperature to reduce the energy consumption of the electric heater.

[0008] In some embodiments, reducing the speed of the evaporator-side fan of the air conditioner when the evaporator temperature of the air conditioner is greater than or equal to a predetermined value includes reducing the speed of the evaporator-side fan by one level at predetermined intervals.

[0009] In this way, by reducing the speed of the evaporator-side fan, the indoor air with higher humidity can come into full contact with the evaporator, thereby ensuring sufficient heat exchange between the refrigerant in the evaporator and the indoor air. This allows the indoor air to cool down and liquefy, forming water that is then drained to the outside through a drain pipe, thus improving the dehumidification effect of the air conditioner and reducing the humidity of the indoor air.

[0010] In some embodiments, the control method includes controlling the fixed-frequency compressor to start or maintain operation and the electric heater of the air conditioner to turn off when the indoor temperature is greater than the set temperature.

[0011] In this way, the indoor temperature is lowered to a reasonable range, thereby achieving the purpose of temperature regulation.

[0012] In some embodiments, the control method includes controlling the fixed-frequency compressor to shut down when the indoor temperature is lower than the set temperature and the indoor humidity is lower than the set humidity.

[0013] In this way, the indoor temperature is lowered to a reasonable range, thereby achieving the purpose of temperature regulation.

[0014] In some embodiments, the control method includes controlling the electric heater of the air conditioner to turn on when the indoor temperature is lower than the set temperature and the indoor humidity is higher than the set humidity.

[0015] This causes the indoor temperature to rise, ensuring that the indoor temperature remains within a reasonable range.

[0016] In some embodiments, the control method includes increasing the rotational speed of the evaporator-side fan of the air conditioner when the indoor temperature reaches the set temperature and the indoor humidity is less than the set humidity.

[0017] In this way, the dehumidification effect is reduced, which relatively increases the humidity of the indoor air.

[0018] In some embodiments, increasing the rotation speed of the evaporator-side fan of the air conditioner when the indoor temperature reaches the set temperature and the indoor humidity is less than the set humidity includes increasing the rotation speed of the evaporator-side fan by one level at predetermined intervals.

[0019] In this way, by increasing the speed of the evaporator fan, the contact time between indoor air and evaporator is shortened, thereby reducing the heat exchange efficiency between the refrigerant in the evaporator and indoor air. This reduces the flow of water formed by the cooling and liquefaction of indoor air, thus reducing the dehumidification effect of the air conditioner and increasing the humidity of the indoor air.

[0020] In some embodiments, the control method includes maintaining the rotational speed of the evaporator-side fan of the air conditioner constant when the indoor temperature reaches the set temperature and the indoor humidity reaches the set humidity.

[0021] In this way, by maintaining the constant speed of the evaporator-side fan, the indoor temperature and humidity are kept within a reasonable range, thereby achieving the purpose of regulating indoor temperature and humidity.

[0022] In some embodiments, the control method includes maintaining the rotational speed of the evaporator-side fan of the air conditioner when the evaporator temperature is lower than the predetermined value.

[0023] This prevents the air conditioner from being affected by evaporator icing and ensures the normal operation of the evaporator.

[0024] The present invention also provides an air conditioner, which includes a processor and a memory. The memory stores a computer program, and when the computer program is executed by the processor, it implements the method described in any of the above embodiments.

[0025] Thus, the air conditioning control method maintains dehumidification by controlling the fixed-frequency compressor to start or maintain operation when the indoor temperature reaches the set temperature and the indoor humidity exceeds the set humidity, preventing the dehumidification effect from being affected by the compressor stopping. Furthermore, when the air conditioner's cooling capacity is constant, the dehumidification capacity and the change in indoor temperature are inversely correlated. Also, when the evaporator-side fan speed is too high, the effect of separating moisture from the indoor air deteriorates, resulting in a decrease in dehumidification capacity. Therefore, the control method reduces the speed of the evaporator-side fan to improve the dehumidification effect, while simultaneously adjusting the change in indoor temperature to reduce the energy consumption of the electric heater.

[0026] The present invention also provides a computer-readable storage medium storing a computer program that, when executed by one or more processors, implements the method described in any of the above embodiments.

[0027] Thus, using a computer-readable storage medium control method, when the indoor temperature reaches the set temperature and the indoor humidity exceeds the set humidity, the fixed-frequency compressor is controlled to start or maintain operation to preserve the dehumidification effect and avoid affecting the dehumidification effect due to the fixed-frequency compressor stopping. Furthermore, when the cooling capacity of the air conditioner is constant, the dehumidification capacity and the change in indoor temperature are inversely correlated, and when the evaporator-side fan speed is too high, the effect of separating moisture from the indoor air deteriorates, resulting in a decrease in dehumidification capacity. Therefore, the control method controls the speed of the evaporator-side fan to reduce the dehumidification effect, while simultaneously adjusting the change in indoor temperature to reduce the energy consumption of the electric heater.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a flowchart illustrating the control method according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of an air conditioner according to an embodiment of the present invention;

[0032] Figure 3 This is a flowchart illustrating the control method according to an embodiment of the present invention;

[0033] Figure 4 This is a control principle diagram of the control method according to an embodiment of the present invention.

[0034] Explanation of key component symbols: Air conditioner-10, Fixed frequency compressor-11, Evaporator-12, Evaporator-side fan-13, Electric heater-14, Condenser-15, Condenser-side fan-16, Electronic expansion valve-17, Temperature and humidity sensor-18, Inner panel temperature sensor-19. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] This disclosure provides many different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0040] Please see Figures 1 to 4 This invention provides a control method for controlling an air conditioner 10. The control method includes:

[0041] Step 01: When the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, control the fixed-frequency compressor 11 of the air conditioner 10 to start or maintain operation;

[0042] Step 03: When the temperature of the evaporator 12 of the air conditioner 10 is greater than or equal to the predetermined value, reduce the speed of the evaporator-side fan 13 of the air conditioner 10.

[0043] The present invention also provides an air conditioner 10, which includes a processor and a memory. The memory stores a computer program, and when the computer program is executed by the processor, it implements the method of any of the above embodiments.

[0044] The present invention also provides a computer-readable storage medium storing a computer program that, when executed by one or more processors, implements a control method.

[0045] The control method, air conditioner 10, and computer-readable storage medium of this invention maintain dehumidification effect by controlling the start or maintenance of the fixed-frequency compressor 11 when the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, thus avoiding the impact of the dehumidification effect due to the shutdown of the fixed-frequency compressor 11. Furthermore, when the cooling capacity of the air conditioner 10 is constant, the dehumidification capacity and the change in indoor temperature are inversely correlated, and the effect of separating moisture from indoor air deteriorates when the fan speed of the evaporator-side fan 13 is too high, resulting in a decrease in the dehumidification capacity. Therefore, the control method controls the speed of the evaporator-side fan 13 to reduce the dehumidification effect, while simultaneously adjusting the change in indoor temperature to reduce the energy consumption of the electric heater 19.

[0046] In some embodiments of the present invention, the control method may be implemented by the air conditioner 10. Of course, the control method is not limited to being implemented by the air conditioner 10, and may also be implemented by other devices.

[0047] It should be noted that the following explanation of the implementation method and its beneficial effects also applies to the air conditioner 10 of the present invention. To avoid redundancy, it will not be elaborated in detail here.

[0048] In one implementation, the steps of the control method are as follows when the processor executes a computer program:

[0049] Step 01: When the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, control the fixed-frequency compressor 11 of the air conditioner 10 to start or maintain operation;

[0050] Step 03: When the temperature of the evaporator 12 of the air conditioner 10 is greater than or equal to the predetermined value, reduce the speed of the evaporator-side fan 13 of the air conditioner 10.

[0051] In other words, the processor or computer program is dedicated to implementing the control method. Of course, in other implementations, the control method can also be implemented in other forms, such as a circuit with a specific structure, electronic devices, or a combination with a portion of a computer program.

[0052] Specifically, the memory in the embodiments of the present invention can be a storage medium with storage function, such as internal memory, external memory, random access memory (RAM), read-only memory (ROM), and hard disk, or other types of memory, without limitation. The processor can be a central processing unit (CPU) and a graphics processing unit, or other types of processor, without limitation. The computer program can be in the form of source code, object code, and executable file, or other forms, without limitation.

[0053] It should be noted that the following explanation of the implementation method and its beneficial effects also applies to the computer-readable storage medium used in this implementation method, and will not be elaborated in detail here to avoid redundancy.

[0054] Understandably, the computer-readable storage medium in the embodiments of the present invention may include USB flash drives, portable hard drives, recording media, magnetic disks, optical disks, and computer memory, etc.

[0055] Please combine Figure 2 The air conditioner 10 includes a fixed-frequency compressor 11, an evaporator 12, an evaporator-side fan 13, an electric heater 14, a condenser 15, a condenser-side fan 16, an electronic expansion valve 17, a temperature and humidity sensor 18, and an inner panel temperature sensor 19, etc.

[0056] Specifically, in step 01, in one embodiment, the indoor temperature can be detected and obtained in real time by the temperature and humidity sensor 18. Similarly, the indoor humidity can also be detected and obtained in real time by the temperature and humidity sensor 18. It can be understood that the temperature and humidity sensor 18 can be installed indoors, integrating a humidity-sensitive element and a temperature-sensitive element, and can be used to obtain the temperature and humidity of the indoor air to meet the user's needs for the indoor environment.

[0057] In one implementation, the set temperature can be the indoor temperature preset on the air conditioner remote control. Similarly, the indoor humidity can be the indoor humidity preset on the air conditioner remote control. When the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, it can be understood that the indoor temperature has reached a reasonable temperature range, but the indoor humidity is higher than a reasonable humidity range. Therefore, the indoor humidity needs to be adjusted to ensure that the indoor humidity is also within a reasonable humidity range.

[0058] In one implementation, the normal operation of the air conditioner 10 is a prerequisite for indoor humidity regulation. That is, when the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, if the fixed-frequency compressor 11 of the air conditioner 10 is in a closed state, the fixed-frequency compressor 11 needs to be started to perform dehumidification. When the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, if the fixed-frequency compressor 11 of the air conditioner 10 is in a turned-on state, the turned-on state of the fixed-frequency compressor 11 needs to be maintained to ensure the normal dehumidification process of the air conditioner 10.

[0059] In step 03, in one embodiment, the predetermined value can be a pre-set critical value for the normal operating temperature of the evaporator 12. That is, when the temperature of the evaporator 12 of the air conditioner 10 is greater than or equal to the predetermined value, the evaporator 12 can normally carry out the cooling and dehumidification processes. When the temperature of the evaporator 12 of the air conditioner 10 is less than the predetermined value, the evaporator 12 may freeze due to the excessively low temperature, thus failing to guarantee the normal operation of the evaporator 12.

[0060] In one implementation, the predetermined value can be 2°C or other values, without specific limitations.

[0061] When the temperature of the evaporator 12 of the air conditioner 10 is greater than or equal to a predetermined value, such as 3°C, 4°C, or other values, the evaporator 12 of the air conditioner 10 can perform normal cooling and dehumidification processes. As can be seen from step 01, when the indoor temperature reaches the set temperature, the control method reduces the speed of the evaporator-side fan 13 to ensure that the indoor air with high humidity is in full contact with the evaporator 12, so that the indoor air cools down and liquefies to form water, which is then discharged to the outside through the drain pipe, thereby improving the dehumidification effect of the air conditioner 10 and reducing the humidity of the indoor air.

[0062] In some implementations, step 03 includes:

[0063] The speed of the evaporator-side fan 13 is reduced by one level at predetermined intervals.

[0064] In this way, by reducing the speed of the evaporator fan 13, the indoor air with higher humidity can come into full contact with the evaporator 12, thereby ensuring that the refrigerant in the evaporator 12 exchanges heat fully with the indoor air. This causes the indoor air to cool down and liquefy, forming water that is discharged to the outside through the drain pipe, thus improving the dehumidification effect of the air conditioner 10 and reducing the humidity of the indoor air.

[0065] Specifically, in one embodiment, the predetermined time can be 60 seconds. That is, the control method can gradually improve the dehumidification efficiency of the air conditioner 10 by reducing the speed of the evaporator-side fan 13 by one level every 60 seconds, thus avoiding a reduction in the service life of the air conditioner 10 due to a sudden increase in the dehumidification load. In other embodiments, the predetermined time can also be 30 seconds, 90 seconds, or other values ​​between 30 seconds and 90 seconds, or other times, without specific limitations.

[0066] In one embodiment, the evaporator fan 13 can have three speed settings: low, medium, and high; or five speed settings: low, low-medium, medium, high-medium, and high; or any other number of speed settings, without specific limitations. That is, when the evaporator temperature of the air conditioner is greater than or equal to a predetermined value, the speed of the evaporator fan 13 can be adjusted by gradually decreasing the speed setting, thereby gradually changing the heat exchange efficiency between the indoor air and the evaporator 12.

[0067] It is understandable that the setting of the evaporator fan 13 can be adjusted by gradually changing one setting. For example, when the setting of the evaporator fan 13 is reduced by one setting, the evaporator 12 can quickly adjust its heat exchange efficiency with the indoor air within a predetermined time, thereby ensuring the normal operating efficiency of the evaporator 12 at different fan speeds. Therefore, when the predetermined time is reached, it indicates that the heat exchange efficiency adjustment of the evaporator 12 is complete, and the setting of the evaporator fan 13 is further reduced by one setting until the evaporator fan 13 reaches its lowest setting. This setting ensures that the adjustment efficiency of the evaporator fan 13 is more accurate and reasonable, thereby ensuring that the indoor humidity is regulated to a reasonable range.

[0068] Please see Figure 3 In some implementations, step 01 includes:

[0069] Step 011: Obtain the indoor temperature and set temperature;

[0070] Step 013: When the difference between the indoor temperature and the set temperature is within the predetermined temperature range, determine that the indoor temperature has reached the set temperature.

[0071] In this way, the indoor temperature is determined to be within a reasonable range, making indoor temperature a prerequisite for regulating indoor humidity.

[0072] Specifically, in step 011, please combine Figure 2 In one embodiment, the indoor temperature can be detected in real time by the temperature and humidity sensor 18. The set temperature can be obtained through the control panel of the air conditioner remote control, the memory of the air conditioner 10, or other means, without specific limitations. The control method determines whether the indoor temperature is within a reasonable temperature range by acquiring and comparing the values ​​of the indoor temperature and the set temperature.

[0073] In step 013, in one embodiment, the temperature preset range can be the difference between the indoor temperature and the set temperature being within a reasonable temperature range for the air conditioner 10 to cool, so as to ensure that the air conditioner 10 can perform the indoor humidity regulation process.

[0074] In one embodiment, the predetermined temperature range can be [-2℃, 2℃]. That is, the difference between the indoor temperature and the set temperature can be -2℃, -1℃, 0℃, 1℃, 2℃ or other values ​​between -2℃ and 2℃, without specific limitations.

[0075] It is understandable that when the difference between the indoor temperature and the set temperature falls within the predetermined temperature range, such as [-2℃, 2℃], the indoor temperature can be determined to be within a reasonable temperature range. That is, it can be determined that the indoor temperature has reached the set temperature, thereby ensuring that the air conditioner 10 can perform the indoor humidity adjustment process.

[0076] In some implementations, the control method includes:

[0077] When the indoor temperature is higher than the set temperature, the fixed-frequency compressor 11 is started or kept running and the electric heater 14 of the air conditioner 10 is turned off.

[0078] In this way, the indoor temperature is lowered to a reasonable range, thereby achieving the purpose of temperature regulation.

[0079] Specifically, in one implementation, an indoor temperature greater than a set temperature can be understood as the difference between the indoor temperature and the set temperature being greater than the upper limit of the predetermined temperature range, for example, the upper limit of the temperature is 2°C, indicating that the indoor temperature is too high at this time.

[0080] It is understandable that the control method should take appropriate measures to reduce the indoor temperature and bring it within a reasonable temperature range. Specifically, with the fixed-frequency compressor 11 in the off state and the electric heater 14 in the on state, the control method can start the fixed-frequency compressor 11 to lower the indoor temperature through cooling. Simultaneously, the control method can turn off the electric heater 14 to accelerate the rate at which the indoor temperature decreases.

[0081] With the fixed-frequency compressor 11 and the electric heater 14 both off, the control method can start the fixed-frequency compressor 11 to lower the indoor temperature through cooling. Simultaneously, the control method maintains the electric heater 14 off, allowing the indoor temperature to gradually decrease and preventing it from rising further due to starting the electric heater 14.

[0082] With both the fixed-frequency compressor 11 and the electric heater 14 in operation, the control method can prevent the indoor temperature from rising further by maintaining the operation of the fixed-frequency compressor 11. Simultaneously, the control method can turn off the electric heater 14 to reduce heat loss and gradually lower the indoor temperature.

[0083] When the fixed-frequency compressor 11 is in the start-up state and the electric heater 14 is in the off state, the control method can prevent the indoor temperature from continuing to rise by maintaining the start-up state of the fixed-frequency compressor 11. At the same time, the control method can gradually reduce the excessively high indoor temperature by maintaining the off state of the electric heater 14, thus preventing the indoor temperature from continuing to rise due to the start-up of the electric heater 14.

[0084] In summary, when the indoor temperature is higher than the set temperature, the control method can ensure that the fixed-frequency compressor 11 is turned on to cool down, while turning off the electric heater 14 to assist in cooling, so that the indoor temperature reaches a reasonable range, thereby achieving the purpose of temperature regulation.

[0085] In some implementations, the control method includes:

[0086] Get the indoor temperature and the set temperature;

[0087] If the difference between the indoor temperature and the set temperature is greater than the preset temperature range, it is determined that the indoor temperature is greater than the set temperature.

[0088] Thus, if the indoor temperature is determined to be too high, appropriate measures can be taken to lower the indoor temperature.

[0089] Specifically, in one implementation, the control method determines whether the indoor temperature is within a reasonable temperature range by acquiring and comparing the values ​​of the indoor temperature and the set temperature.

[0090] In one embodiment, the predetermined temperature range can be [-2℃, 2℃]. That is, the difference between the indoor temperature and the set temperature can be -2℃, -1℃, 0℃, 1℃, 2℃ or other values ​​between -2℃ and 2℃, without specific limitations.

[0091] It is understandable that when the difference between the indoor temperature and the set temperature is greater than the predetermined temperature range, such as [-2℃, 2℃], it can be determined that the difference between the indoor temperature and the set temperature is greater than the upper limit of the predetermined temperature range, such as 2℃. This means that the indoor temperature is greater than the set temperature, that is, the indoor temperature is too high, and corresponding measures need to be taken to reduce the indoor temperature to a reasonable temperature range.

[0092] In some implementations, the control method includes:

[0093] When the indoor temperature is lower than the set temperature and the indoor humidity is lower than the set humidity, the fixed-frequency compressor 11 is shut down.

[0094] This will raise the indoor temperature and keep it within a reasonable range.

[0095] Specifically, in one implementation, the indoor temperature being lower than the set temperature can be understood as the difference between the indoor temperature and the set temperature being less than the lower limit of the predetermined temperature range, for example, the lower limit of the temperature range being -2°C, indicating that the indoor temperature is too low at this time.

[0096] In one implementation, indoor humidity being less than the set humidity can be understood as the difference between indoor humidity and the set humidity being less than the lower limit of the humidity range, for example, the lower limit of humidity being -8%, indicating that the indoor humidity is too low, that is, the indoor air is relatively dry.

[0097] In one implementation, the humidity preset range can be [-8%, 5%]. That is, the difference between the indoor humidity and the set humidity can be -8%, -5%, 0%, 2%, 5%, or other values ​​between -8% and 5%, without specific limitations.

[0098] While ensuring that the indoor temperature is within a reasonable range, the control method of this invention further adjusts the indoor humidity according to the temperature range.

[0099] It is understandable that the control method needs to take corresponding measures to increase the indoor temperature and keep it within a reasonable temperature range. Specifically, when the fixed-frequency compressor 11 is off and the electric heater 14 is on, the control method can prevent the indoor temperature from continuing to decrease by maintaining the fixed-frequency compressor 11 off. Simultaneously, the control method continues to maintain the electric heater 14 on, allowing the indoor temperature to gradually increase and preventing further decreases in indoor temperature due to turning off the electric heater 14.

[0100] With both the fixed-frequency compressor 11 and the electric heater 14 off, the control method can prevent the indoor temperature from continuing to decrease by maintaining the fixed-frequency compressor 11 off. Simultaneously, the control method continues to maintain the electric heater 14 off, allowing the indoor temperature to rise naturally and preventing the indoor air from becoming drier due to the activation of the electric heater 14.

[0101] With both the fixed-frequency compressor 11 and the electric heater 14 in operation, the control method can shut down the fixed-frequency compressor 11 to prevent the indoor temperature from continuing to decrease. Simultaneously, the control method maintains the electric heater 14 in operation, allowing the indoor temperature to gradually increase and preventing further decreases in indoor temperature due to shutting down the electric heater 14.

[0102] With the fixed-frequency compressor 11 in the start-up state and the electric heater 14 in the off state, the control method can shut down the fixed-frequency compressor 11 to prevent the indoor temperature from continuing to decrease. At the same time, the control method continues to keep the electric heater 14 off, allowing the indoor air to warm up naturally and avoiding further drying of the indoor air due to the activation of the electric heater 14.

[0103] In summary, when the indoor temperature is higher than the set temperature and the indoor humidity is lower than the set humidity, the control method first ensures that the fixed-frequency compressor 11 is shut down to prevent the indoor temperature from continuing to decrease. Simultaneously, the control method maintains the current state of the electric heater 14 to prevent the indoor humidity from dropping even lower, thereby ensuring that the indoor temperature rises to a reasonable range, thus achieving the purpose of temperature regulation.

[0104] In some implementations, the control method includes:

[0105] When the indoor temperature is lower than the set temperature and the indoor humidity is higher than the set humidity, the electric heater 14 of the air conditioner 10 is turned on.

[0106] This causes the indoor temperature to rise, ensuring that the indoor temperature remains within a reasonable range.

[0107] Specifically, in one implementation, the indoor temperature being lower than the set temperature can be understood as the difference between the indoor temperature and the set temperature being less than the lower limit of the predetermined temperature range, for example, the lower limit of the temperature range being -2°C, indicating that the indoor temperature is too low at this time.

[0108] In one implementation, indoor humidity being greater than a set humidity can be understood as the difference between indoor humidity and set humidity being greater than the upper limit of the humidity range, for example, the upper limit of humidity being 5%, indicating that the indoor humidity is too high, that is, the indoor air is relatively humid.

[0109] In one implementation, the humidity preset range can be [-8%, 5%]. That is, the difference between the indoor humidity and the set humidity can be -8%, -5%, 0%, 2%, 5%, or other values ​​between -8% and 5%, without specific limitations.

[0110] While ensuring that the indoor temperature is within a reasonable range, the control method of this invention further adjusts the indoor humidity according to the temperature range.

[0111] It is understandable that the control method needs to take corresponding measures to increase the indoor temperature and keep it within a reasonable temperature range. Since the dehumidification function of the air conditioner 10 can only be guaranteed by starting the fixed-frequency compressor 11, the indoor temperature can be increased by starting the electric heater 14. Specifically, when the electric heater 14 is in the off state and the fixed-frequency compressor 11 is in the starting state, the control method can gradually increase the indoor temperature by starting the electric heater 14. At the same time, the control method can prevent the indoor temperature from continuing to decrease by maintaining the current operating state of the fixed-frequency compressor 11.

[0112] With both the electric heater 14 and the fixed-frequency compressor 11 in the start-up state, the control method can maintain the start-up state of the electric heater 14 to gradually increase the indoor temperature. Simultaneously, the control method continues to maintain the current operating state of the fixed-frequency compressor 11 to prevent the indoor temperature from further decreasing.

[0113] In summary, when the indoor temperature is lower than the set temperature and the indoor humidity is higher than the set humidity, the control method first ensures that the electric heater 14 is in the starting state, so that the indoor temperature gradually rises. At the same time, the current operating state of the fixed-frequency compressor 11 is maintained to ensure that the air conditioner 10 can perform the indoor dehumidification function if the indoor temperature does not continue to drop.

[0114] In some implementations, the control method includes:

[0115] Get the indoor temperature and the set temperature;

[0116] If the difference between the indoor temperature and the set temperature is less than the preset temperature range, the indoor temperature is determined to be less than the set temperature.

[0117] Thus, if the indoor temperature is determined to be too low, appropriate measures can be taken to raise the indoor temperature.

[0118] Specifically, in one implementation, the control method determines whether the indoor temperature is within a reasonable temperature range by acquiring and comparing the values ​​of the indoor temperature and the set temperature.

[0119] In one embodiment, the predetermined temperature range can be [-2℃, 2℃]. That is, the difference between the indoor temperature and the set temperature can be -2℃, -1℃, 0℃, 1℃, 2℃ or other values ​​between -2℃ and 2℃, without specific limitations.

[0120] It is understandable that when the difference between the indoor temperature and the set temperature is less than the predetermined temperature range, such as [-2℃, 2℃], it can be determined that the difference between the indoor temperature and the set temperature is less than the lower limit of the predetermined temperature range, such as -2℃. This means that the indoor temperature is less than the set temperature, that is, it is determined that the indoor temperature is too low, and corresponding measures need to be taken to raise the indoor temperature to bring it into a reasonable temperature range.

[0121] In some implementations, the control method includes:

[0122] Step 05: When the indoor temperature reaches the set temperature and the indoor humidity is less than the set humidity, increase the speed of the evaporator-side fan 13 of the air conditioner 10.

[0123] In this way, the dehumidification effect is reduced, which relatively increases the humidity of the indoor air.

[0124] Specifically, in one implementation, when the indoor temperature reaches the set temperature and the indoor humidity is lower than the set humidity, it can be understood that the indoor temperature has reached a reasonable temperature range, but the indoor humidity is lower than a reasonable humidity range. Therefore, the indoor humidity needs to be adjusted to ensure that the indoor humidity is also within a reasonable humidity range.

[0125] It is understandable that when the indoor temperature reaches the set temperature and the indoor humidity is lower than the set humidity, both the fixed-frequency compressor 11 and the electric heater 14 maintain their current state to ensure that the indoor temperature remains within a reasonable range. Simultaneously, the control method can increase the fan speed of the evaporator-side fan 13 of the air conditioner 10 to increase the airflow, thereby shortening the contact time between the indoor air and the evaporator 12. This reduces the heat exchange efficiency between the refrigerant in the evaporator 12 and the indoor air, thus reducing the liquefaction of the indoor air and consequently reducing the dehumidification effect of the air conditioner 10, ensuring that the indoor humidity remains within a reasonable range.

[0126] In some implementations, step 05 includes:

[0127] The speed of the evaporator side fan 13 is increased by one level at predetermined intervals.

[0128] In this way, by increasing the speed of the evaporator fan 13, the contact time between the indoor air and the evaporator 12 is shortened, thereby reducing the heat exchange efficiency between the refrigerant in the evaporator 12 and the indoor air. This reduces the flow rate of water formed by the cooling and liquefaction of the indoor air, thereby reducing the dehumidification effect of the air conditioner 10 and increasing the humidity of the indoor air.

[0129] Specifically, in one embodiment, the predetermined time can be 60 seconds. That is, the control method can gradually reduce the dehumidification efficiency of the air conditioner 10 by increasing the speed of the evaporator-side fan 13 by one level every 60 seconds. In other embodiments, the predetermined time can also be 30 seconds, 90 seconds, or other values ​​between 30 seconds and 90 seconds, or other times, without specific limitations.

[0130] In one embodiment, the evaporator fan 13 can have three speed settings: low, medium, and high; or five speed settings: low, low-medium, medium, high-medium, and high; or any other number of speed settings, without specific limitations. That is, when the indoor temperature reaches the set temperature and the indoor humidity is lower than the set humidity, the speed of the evaporator fan 13 can be adjusted by gradually increasing the speed setting, thereby gradually changing the heat exchange efficiency between the indoor air and the evaporator 12.

[0131] It is understandable that the setting of the evaporator fan 13 can be adjusted by gradually changing one setting. For example, when the setting of the evaporator fan 13 is increased by one setting, the evaporator 12 can quickly adjust its heat exchange efficiency with the indoor air within a predetermined time, thereby ensuring the normal operating efficiency of the evaporator 12 at different fan speeds. Therefore, when the predetermined time is reached, it indicates that the heat exchange efficiency adjustment of the evaporator 12 is complete, and the setting of the evaporator fan 13 continues to increase by one setting until the evaporator fan 13 reaches its highest setting. This setting ensures that the adjustment efficiency of the evaporator fan 13 is more accurate and reasonable, thereby ensuring that the indoor humidity is regulated to a reasonable range.

[0132] In some implementations, the control method includes:

[0133] Step 07: When the indoor temperature reaches the set temperature and the indoor humidity reaches the set humidity, maintain the rotation speed of the evaporator side fan 13 of the air conditioner 10 unchanged.

[0134] In this way, by maintaining the rotation speed of the evaporator-side fan 13 constant, the indoor temperature and humidity are kept within a reasonable range, thereby achieving the purpose of regulating the indoor temperature and humidity.

[0135] Specifically, in one embodiment, when the indoor temperature and humidity reach the set temperature and humidity levels, it can be understood that the indoor temperature and humidity have both reached a reasonable range. That is, at this time, both the fixed-frequency compressor 11 and the electric heater 14 maintain their current state to ensure that the indoor temperature remains within a reasonable range. Simultaneously, the control method can maintain the rotational speed of the evaporator-side fan 13 to ensure that the dehumidification effect of the air conditioner 10 remains constant, thereby ensuring that the indoor temperature and humidity remain within a reasonable range, thus achieving the purpose of regulating both indoor temperature and humidity.

[0136] In some implementations, the control method includes:

[0137] Step 09: When the temperature of the evaporator 12 is lower than the predetermined value, maintain the speed of the evaporator-side fan 13 of the air conditioner 10.

[0138] This prevents the air conditioner 10 from being affected by the evaporator 12 freezing, thus ensuring the normal operation of the evaporator 12.

[0139] Specifically, in one embodiment, the predetermined value can be determined by an inner plate temperature sensor 19 installed on the evaporator 12 to prevent the evaporator 12 from freezing due to excessively low temperature, thereby affecting the normal operation of the air conditioner 10.

[0140] In one embodiment, the predetermined value can be 2°C. That is, when the temperature of the evaporator 12 is lower than the predetermined value, for example, the predetermined value is 2°C, the control method can keep the speed of the evaporator-side fan 13 constant to prevent the temperature of the evaporator 12 from continuing to drop and causing the evaporator 12 to freeze, thereby ensuring that the evaporator 12 can perform cooling and dehumidification normally.

[0141] In other implementations, the predetermined value may be other values, and no specific restrictions are imposed here.

[0142] Please see Figure 4 , Figure 4 This is a control principle diagram of the control method according to an embodiment of the present invention.

[0143] like Figure 4 As can be seen, the control method of this invention first determines and adjusts the indoor air to a suitable temperature range, and then determines and adjusts the indoor humidity to a reasonable humidity range based on the temperature range. Here, △T is the difference between the indoor temperature and the set temperature, △φ is the difference between the indoor humidity and the set humidity, the predetermined temperature range is [-T1, T1], and the predetermined humidity range is [φ1, φ2].

[0144] In one embodiment, the predetermined temperature range can be [-2℃, 2℃], and the predetermined humidity range can be [-8%, 5%]. In other embodiments, the predetermined temperature range and humidity range can be other numerical ranges, which are not specifically limited here.

[0145] It should be noted that the above explanation of the implementation methods and beneficial effects of the control method also applies to... Figure 4 The control principles described herein will not be elaborated upon here to avoid redundancy.

[0146] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0147] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A control method for controlling an air conditioner, characterized in that, The control method includes: When the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity, the fixed-frequency compressor of the air conditioner is controlled to start or maintain operation. When the evaporator temperature of the air conditioner is greater than or equal to a predetermined value, the speed of the evaporator-side fan of the air conditioner is reduced; when the evaporator temperature is less than the predetermined value, the speed of the evaporator-side fan of the air conditioner is maintained. When the indoor temperature reaches the set temperature and the indoor humidity reaches the set humidity, the rotation speed of the evaporator-side fan of the air conditioner remains unchanged; The step of controlling the fixed-frequency compressor of the air conditioner to start or maintain operation when the indoor temperature reaches the set temperature and the indoor humidity is greater than the set humidity includes: acquiring the indoor temperature and the set temperature; and determining that the indoor temperature has reached the set temperature when the difference between the indoor temperature and the set temperature meets the predetermined temperature range. When the indoor temperature is higher than the set temperature, the fixed-frequency compressor is controlled to start or continue to run while the electric heater of the air conditioner is turned off. When the indoor temperature is lower than the set temperature and the indoor humidity is lower than the set humidity, the fixed-frequency compressor is controlled to shut down. When the indoor temperature is lower than the set temperature and the indoor humidity is higher than the set humidity, the electric heater of the air conditioner is turned on. When the indoor temperature reaches the set temperature and the indoor humidity is less than the set humidity, the rotation speed of the evaporator-side fan of the air conditioner is increased.

2. The control method according to claim 1, characterized in that, The step of reducing the speed of the evaporator-side fan of the air conditioner when the evaporator temperature is greater than or equal to a predetermined value includes: The speed of the evaporator-side fan is reduced by one level at predetermined intervals.

3. The control method according to claim 1, characterized in that, The step of increasing the rotational speed of the evaporator-side fan of the air conditioner when the indoor temperature reaches the set temperature and the indoor humidity is less than the set humidity includes: The speed of the evaporator-side fan is increased by one level at predetermined intervals.

4. An air conditioner, characterized in that, The air conditioner includes a processor and a memory, the memory storing a computer program that, when executed by the processor, implements the method according to any one of claims 1-3.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by one or more processors, implements the method of any one of claims 1-3.

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