Method, device and air conditioner for controlling an air conditioner, storage medium

Abstract

The application relates to the air conditioning technical field and discloses a method for controlling an air conditioner, which comprises the following steps: acquiring an indoor temperature and an outdoor temperature in the case that the air conditioner executes a dehumidification instruction; adjusting the operation mode of the air conditioner according to the outdoor temperature; and controlling the operation of the fresh air device according to the adjusted operation mode and the indoor temperature. The application combines the fresh air function and the dehumidification function, can realize the constant-temperature dehumidification effect, is favorable for guaranteeing the comfortable experience of indoor users. Moreover, the application does not have to frequently switch the refrigeration and heating modes to maintain the indoor temperature, so that the loss of the air conditioner can be further reduced, and the service life of the air conditioner is prolonged. The application further discloses an apparatus for controlling the air conditioner, the air conditioner and a storage medium.

Description

Technical Field

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

[0002] Most air conditioners nowadays have dehumidification functions. When operating in cooling mode, as the refrigerant circulates, the indoor evaporator temperature gradually drops below the dew point. At this time, humid air from the indoor environment is drawn into the indoor unit, where the water vapor condenses into tiny water droplets on the evaporator tube walls, forming condensate. By draining the condensate and expelling dry air through the vents, the air conditioner achieves dehumidification. However, this process also causes the indoor temperature to drop continuously, making users feel increasingly cold, which is detrimental to their comfort.

[0003] To address this, a method for constant temperature dehumidification in an air conditioner has been proposed, comprising: the air conditioner detecting the indoor temperature RT, comparing the detected indoor temperature RT with the set temperature ST to obtain a temperature difference E; when the temperature difference E > T, the air conditioner operates in cooling dehumidification mode; when the temperature difference E < -T, the air conditioner operates in heating dehumidification mode; when the temperature difference -T ≤ E ≤ T, the air conditioner operates in reheat dehumidification mode; when the air conditioner is in reheat dehumidification mode, the control unit controls the throttling device b to operate, thus throttling; when the air conditioner is in both cooling dehumidification mode and heating dehumidification mode, the control unit controls the throttling device b to open, thus not throttling.

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

[0005] While these technologies can ensure that air conditioners maintain the indoor temperature near the set value while dehumidifying, they require frequent switching between cooling and heating modes to maintain the indoor temperature. This leads to increased wear and tear on the equipment and a reduced lifespan for the air conditioner. Summary of the Invention

[0006] 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.

[0007] This disclosure provides a method, apparatus, air conditioner, and storage medium for controlling an air conditioner, which can achieve constant temperature and dehumidification effects, while also reducing wear and tear on the air conditioner and extending its service life.

[0008] In some embodiments, the air conditioner includes an indoor unit and a fresh air device. The indoor unit includes an indoor fan and a supply air duct. The two ends of the supply air duct are respectively connected to a return air vent and an air outlet. The fresh air device includes a fresh air fan and a fresh air duct. A first end of the fresh air duct is connected to the outdoor space, and a second end of the fresh air duct is connected to the supply air duct. The method includes:

[0009] When the air conditioner executes the dehumidification command, the indoor temperature and outdoor temperature are obtained;

[0010] Adjust the operating mode of the air conditioner according to the outdoor temperature;

[0011] The operation of the fresh air device is controlled according to the adjusted operating mode and indoor temperature.

[0012] 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 as described above when the program instructions are executed.

[0013] In some embodiments, the air conditioner includes:

[0014] The indoor unit includes an indoor fan and an air supply duct, the two ends of which are connected to a return air vent and an air outlet, respectively.

[0015] The fresh air device includes a fresh air fan and a fresh air duct, wherein the first end of the fresh air duct is connected to the outdoor space and the second end of the fresh air duct is connected to the air supply duct.

[0016] The aforementioned device for controlling the air conditioner is electrically connected to the indoor unit and the fresh air device.

[0017] In some embodiments, the storage medium stores program instructions that, when executed, perform the method described above for controlling an air conditioner.

[0018] The method, apparatus, air conditioner, and storage medium for controlling an air conditioner provided in this disclosure can achieve the following technical effects:

[0019] In this embodiment, the fresh air function is combined with the dehumidification function, and the operating mode of the air conditioner and the working mode of the fresh air device are adjusted by acquiring the indoor and outdoor temperatures to achieve constant temperature and dehumidification of the room. Specifically, this embodiment can introduce outdoor hot air using the fresh air device while the air conditioner is cooling and dehumidifying, thereby maintaining the indoor temperature by balancing the indoor cooling capacity. Similarly, this embodiment can also introduce outdoor cold air using the fresh air device while the air conditioner is heating and dehumidifying, thereby maintaining the indoor temperature by balancing the indoor heating capacity. Therefore, this embodiment can achieve a constant temperature and dehumidification effect, which is beneficial to ensuring the comfort of indoor users. Furthermore, this embodiment does not require frequent switching between cooling and heating modes to maintain the indoor temperature, thus further reducing wear and tear on the air conditioner and extending its service life.

[0020] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0021] 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:

[0022] Figure 1 This is a schematic diagram of a method for controlling an air conditioner provided in an embodiment of this disclosure;

[0023] Figure 2 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0024] Figure 3 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0025] Figure 4 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0026] Figure 5 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0027] Figure 6 This is a schematic diagram of another method for controlling an air conditioner provided in an embodiment of this disclosure;

[0028] Figure 7 This is a schematic diagram of a device for controlling an air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0029] 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.

[0030] The terms "first," "second," etc., used in the specification, claims, 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.

[0031] Unless otherwise stated, the term "multiple" means two or more.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Most air conditioners nowadays have dehumidification functions. When operating in cooling mode, as the refrigerant circulates, the indoor evaporator temperature gradually drops below the dew point. At this time, humid air from the indoor environment is drawn into the indoor unit, where the water vapor condenses into tiny water droplets on the evaporator tube walls, forming condensate. By draining the condensate and expelling dry air through the vents, the air conditioner achieves dehumidification. However, this process also causes the indoor temperature to drop continuously, making users feel increasingly cold, which is detrimental to their comfort.

[0036] To address this, a method for constant temperature dehumidification in an air conditioner has been proposed, comprising: the air conditioner detecting the indoor temperature RT, comparing the detected indoor temperature RT with the set temperature ST to obtain a temperature difference E; when the temperature difference E > T, the air conditioner operates in cooling dehumidification mode; when the temperature difference E < -T, the air conditioner operates in heating dehumidification mode; when the temperature difference -T ≤ E ≤ T, the air conditioner operates in reheat dehumidification mode; when the air conditioner is in reheat dehumidification mode, the control unit controls the throttling device b to operate, thus throttling; when the air conditioner is in both cooling dehumidification mode and heating dehumidification mode, the control unit controls the throttling device b to open, thus not throttling.

[0037] While these technologies can ensure that air conditioners maintain the indoor temperature near the set value while dehumidifying, they require frequent switching between cooling and heating modes to maintain the indoor temperature. This leads to increased wear and tear on the equipment and a reduced lifespan for the air conditioner.

[0038] Combination Figure 1 As shown, this disclosure provides a method for controlling an air conditioner. The air conditioner includes an indoor unit and a fresh air system. The indoor unit includes an indoor fan and a supply air duct. The two ends of the supply air duct are connected to a return air vent and an air outlet, respectively. The fresh air system includes a fresh air fan and a fresh air duct. The first end of the fresh air duct is connected to an outdoor space, and the second end of the fresh air duct is connected to a supply air duct. The method includes:

[0039] S101, when the air conditioner executes the dehumidification command, the processor obtains the indoor temperature and the outdoor temperature.

[0040] S102, the processor adjusts the air conditioner's operating mode according to the outdoor temperature.

[0041] S103, the processor controls the operation of the fresh air unit based on the adjusted operating mode and indoor temperature.

[0042] The method for controlling an air conditioner provided in this disclosure combines fresh air and dehumidification functions. It adjusts the air conditioner's operating mode and the fresh air device's working mode by acquiring indoor and outdoor temperatures to achieve constant temperature and dehumidification. Specifically, this disclosure allows the introduction of outdoor hot air via the fresh air device while the air conditioner is cooling and dehumidifying, thus maintaining indoor temperature by balancing the cooling capacity. Similarly, this disclosure allows the introduction of outdoor cold air via the fresh air device while the air conditioner is heating and dehumidifying, thus maintaining indoor temperature by balancing the heating capacity. Therefore, this disclosure achieves constant temperature and dehumidification, which helps ensure a comfortable experience for indoor users. Furthermore, this disclosure eliminates the need for frequent switching between cooling and heating modes to maintain indoor temperature, further reducing wear and tear on the air conditioner and extending its lifespan.

[0043] Optionally, the processor adjusts the air conditioner's operating mode based on the outdoor temperature, including: when the outdoor temperature is greater than or equal to the set temperature, the processor controls the air conditioner to operate in a cooling and dehumidifying mode. Thus, this embodiment of the present disclosure can determine the air conditioner's operating mode by combining the relationship between the outdoor temperature and the set temperature. When the outdoor environment is hot, users typically require cooling when returning indoors. Therefore, by operating the cooling and dehumidifying mode, this embodiment of the present disclosure can further reduce the indoor temperature while dehumidifying the room, which is beneficial for improving user comfort. Furthermore, the introduction of outdoor hot air through a subsequent fresh air intake device can also consume excess cooling energy generated during the air conditioner's cooling process, which is beneficial for maintaining a comfortable indoor environment.

[0044] Optionally, the processor adjusts the air conditioner's operating mode based on the outdoor temperature, including controlling the air conditioner to operate in heating and dehumidification mode when the outdoor temperature is lower than the set temperature. Thus, this embodiment of the present disclosure can determine the air conditioner's operating mode by combining the relationship between the outdoor temperature and the set temperature. When the outdoor environment is cold, users typically require heating when returning indoors. Therefore, by operating the heating and dehumidification mode, this embodiment of the present disclosure can further increase the indoor temperature while dehumidifying the room, which is beneficial for improving user comfort. Furthermore, the introduction of outdoor cool air through a subsequent fresh air intake device can also consume excess heat generated during the air conditioner's heating process, which is beneficial for maintaining a comfortable indoor environment.

[0045] Optionally, the set temperature can be customized according to the user's needs. If no setting is made, the default set temperature is 20℃. This value can also be adjusted based on indoor environmental parameters, and can be set to any other value such as 22℃ or 24℃. For example, in cases of high indoor humidity, the set temperature can be adjusted lower to further improve dehumidification efficiency.

[0046] Optionally, the processor controls the operation of the fresh air device based on the adjusted operating mode and indoor temperature, including: the processor calculates the difference between the indoor temperature and the set temperature to obtain the indoor temperature difference; when the air conditioner is operating in cooling and dehumidification mode, if the indoor temperature difference is less than or equal to the upper limit of the preset temperature range, the processor starts the fresh air fan and controls the fresh air device to deliver air in a first direction. Thus, this embodiment of the present disclosure can control the operation of the fresh air device by combining the temperature difference between the indoor temperature and the set temperature. As the temperature difference decreases, the indoor temperature gradually approaches or even falls below the set temperature. At this time, starting the fresh air fan can introduce outdoor hot air to balance the excess cooling capacity generated in the subsequent cooling process, thereby maintaining the indoor temperature near the set temperature. Therefore, this embodiment of the present disclosure can achieve a constant temperature and dehumidification effect, which is beneficial to ensuring the comfort experience of indoor users. Furthermore, this embodiment of the present disclosure does not require frequent switching between cooling and heating modes to maintain the indoor temperature, thus further reducing wear and tear on the air conditioner and extending its service life.

[0047] Optionally, the processor controls the operation of the fresh air device based on the adjusted operating mode and indoor temperature, including: the processor calculates the difference between the indoor temperature and the set temperature to obtain the indoor temperature difference; when the air conditioner is operating in heating and dehumidification mode, if the indoor temperature difference is greater than or equal to the lower limit of the preset temperature range, the processor starts the fresh air fan and controls the fresh air device to deliver air in a first direction. Thus, this embodiment of the present disclosure can control the operation of the fresh air device by combining the temperature difference between the indoor temperature and the set temperature. As the temperature difference increases, the indoor temperature gradually approaches or even exceeds the set temperature. Activating the fresh air fan at this time can introduce outdoor cool air to balance the excess heat generated during the subsequent heating process, thereby maintaining the indoor temperature near the set temperature. Therefore, this embodiment of the present disclosure can achieve a constant temperature and dehumidification effect, which is beneficial to ensuring the comfort of indoor users. Furthermore, this embodiment of the present disclosure does not require frequent switching between cooling and heating modes to maintain the indoor temperature, thus further reducing wear and tear on the air conditioner and extending its service life.

[0048] Optionally, the preset temperature range can be set according to the user's needs. Preferably, the preset temperature range can be set to [-1℃, 1℃]. This value can also be adjusted according to the difference between indoor and outdoor environments, and can be set to any other range such as [-2℃, 2℃]. For example, when the temperature difference between indoors and outdoors is small, the preset temperature range can be adjusted to be larger to introduce outdoor fresh air earlier using the fresh air device. When the temperature difference between indoors and outdoors is large, the preset temperature range can be adjusted to be smaller to reduce the fluctuation of indoor temperature and further improve the constant temperature effect.

[0049] Combination Figure 2As shown in the illustration, this disclosure provides another method for controlling an air conditioner. The air conditioner includes an indoor unit and a fresh air system. The indoor unit includes an indoor fan and a supply air duct, with both ends of the supply air duct connected to a return air vent and an air outlet, respectively. The fresh air system includes a fresh air fan and a fresh air duct, with a first end of the fresh air duct connected to an outdoor space and a second end connected to a supply air duct. The method includes:

[0050] S201, when the air conditioner executes the dehumidification command, the processor obtains the indoor temperature and the outdoor temperature.

[0051] S202: When the outdoor temperature is greater than or equal to the set temperature, the processor controls the air conditioner to operate in cooling and dehumidification mode.

[0052] S203: When the outdoor temperature is lower than the set temperature, the processor controls the air conditioner to operate in heating and dehumidification mode.

[0053] S204, the processor calculates the difference between the indoor temperature and the set temperature to obtain the indoor temperature difference.

[0054] S205: When the air conditioner is running in cooling and dehumidification mode, if the indoor temperature difference is less than or equal to the upper limit of the preset temperature range, the processor starts the fresh air fan and controls the fresh air device to deliver air in the first direction.

[0055] S206, when the air conditioner is running in heating and dehumidification mode, if the indoor temperature difference is greater than or equal to the lower limit of the preset temperature range, the processor starts the fresh air fan and controls the fresh air device to deliver air in the first direction.

[0056] The method for controlling an air conditioner provided in this disclosure combines a fresh air function with a dehumidification function. It adjusts the air conditioner's operating mode and the fresh air device's working mode by acquiring indoor and outdoor temperatures to achieve constant temperature and dehumidification of the indoor environment. Specifically, this disclosure can introduce outdoor hot air using the fresh air device when the air conditioner is cooling and dehumidifying and the indoor temperature is close to the set temperature, thereby maintaining the indoor temperature by balancing the cooling capacity. Similarly, this disclosure can also introduce outdoor cold air using the fresh air device when the air conditioner is heating and dehumidifying and the indoor temperature is close to the set temperature, thereby maintaining the indoor temperature by balancing the heating capacity. Therefore, this disclosure can achieve constant temperature and dehumidification, which is beneficial for ensuring the comfort of indoor users. Furthermore, this disclosure eliminates the need for frequent switching between cooling and heating modes to maintain the indoor temperature, thus further reducing wear and tear on the air conditioner and extending its service life.

[0057] Optionally, the first direction is to supply air from the first end to the second end through a fresh air duct. In this way, the fresh air device can introduce outdoor fresh air into the room to balance excess cooling or heating generated during subsequent operation, thereby maintaining the indoor temperature near the set temperature. Therefore, the embodiments of this disclosure can achieve a constant temperature and dehumidification effect, which is beneficial to ensuring the comfort of indoor users.

[0058] Optionally, the set temperature can be customized according to the user's needs. If no setting is made, the default set temperature is 20℃. This value can also be adjusted based on indoor environmental parameters, and can be set to any other value such as 22℃ or 24℃. For example, in cases of high indoor humidity, the set temperature can be adjusted lower to further improve dehumidification efficiency.

[0059] Optionally, the preset temperature range can be set according to the user's needs. Preferably, the preset temperature range can be set to [-1℃, 1℃]. This value can also be adjusted according to the difference between indoor and outdoor environments, and can be set to any other range such as [-2℃, 2℃]. For example, when the temperature difference between indoors and outdoors is small, the preset temperature range can be adjusted to be larger to introduce outdoor fresh air earlier using the fresh air device. When the temperature difference between indoors and outdoors is large, the preset temperature range can be adjusted to be smaller to reduce the fluctuation of indoor temperature and further improve the constant temperature effect.

[0060] Optionally, when the outdoor temperature is greater than or equal to the set temperature, after the processor controls the air conditioner to operate in cooling and dehumidification mode, the method further includes: the processor increasing the operating frequency of the compressor; and / or, the processor increasing the speed of the indoor fan; and / or, the processor turning on the outdoor fan. Thus, after the air conditioner enters cooling and dehumidification mode, this embodiment of the present disclosure can also control the air conditioner to increase its own power to shorten the cooling time and accelerate dehumidification efficiency.

[0061] Optionally, when the outdoor temperature is lower than the set temperature, after the processor controls the air conditioner to operate in heating and dehumidification mode, the method further includes: the processor increasing the operating frequency of the compressor; and / or, the processor increasing the speed of the indoor fan; and / or, the processor turning on the outdoor fan. Thus, after the air conditioner enters heating and dehumidification mode, this embodiment of the present disclosure can also control the air conditioner to increase its own power to shorten the heating time and accelerate dehumidification efficiency.

[0062] Optionally, when the air conditioner is operating in cooling and dehumidification mode, if the indoor temperature difference is less than or equal to the upper limit of the preset temperature range, before the processor starts the fresh air fan and controls the fresh air device to deliver air in the first direction, the method further includes: the processor reducing the operating frequency of the compressor; and / or, the processor reducing the speed of the indoor fan; and / or, the processor turning off the outdoor fan. Thus, when the indoor temperature is determined to be close to the set temperature, this embodiment of the present disclosure can also control the air conditioner to make corresponding functional adjustments. This can reduce the power of the air conditioner and reduce the cooling capacity generated in the subsequent cooling process, thereby avoiding user discomfort caused by a continuous drop in indoor temperature.

[0063] Optionally, when the air conditioner is operating in heating and dehumidification mode, if the indoor temperature difference is greater than or equal to the lower limit of the preset temperature range, before the processor starts the fresh air fan and controls the fresh air device to deliver air in the first direction, the method further includes: the processor reducing the operating frequency of the compressor; and / or, the processor reducing the speed of the indoor fan; and / or, the processor turning off the outdoor fan. Thus, when the indoor temperature is determined to be close to the set temperature, this embodiment of the present disclosure can also control the air conditioner to make corresponding functional adjustments. This can reduce the power of the air conditioner and reduce the heat generated in the subsequent heating process, thereby avoiding a continuous rise in indoor temperature that could cause user discomfort.

[0064] Combination Figure 3 As shown in the illustration, this disclosure provides another method for controlling an air conditioner. The air conditioner includes an indoor unit and a fresh air system. The indoor unit includes an indoor fan and a supply air duct, with both ends of the supply air duct connected to a return air vent and an air outlet, respectively. The fresh air system includes a fresh air fan and a fresh air duct, with a first end of the fresh air duct connected to an outdoor space and a second end connected to a supply air duct. The method includes:

[0065] S301: When the air conditioner executes a dehumidification command, the processor obtains the indoor and outdoor temperatures.

[0066] S302: When the outdoor temperature is greater than or equal to the set temperature, the processor controls the air conditioner to operate in cooling and dehumidification mode.

[0067] S303: When the outdoor temperature is lower than the set temperature, the processor controls the air conditioner to operate in heating and dehumidification mode.

[0068] S304, the processor calculates the difference between the indoor temperature and the set temperature to obtain the indoor temperature difference.

[0069] S305: When the air conditioner is running in cooling and dehumidification mode, if the indoor temperature difference is less than or equal to the upper limit of the preset temperature range, the processor will start the fresh air fan and control the fresh air device to deliver air in the first direction.

[0070] S306, when the air conditioner is running in heating and dehumidification mode, if the indoor temperature difference is greater than or equal to the lower limit of the preset temperature range, the processor starts the fresh air fan and controls the fresh air device to deliver air in the first direction.

[0071] S307, the processor obtains indoor humidity.

[0072] The S308 processor adjusts the speed of the fresh air fan based on the indoor humidity.

[0073] The method for controlling an air conditioner provided in this disclosure combines fresh air and dehumidification functions. It adjusts the air conditioner's operating mode and the fresh air device's working mode by acquiring indoor and outdoor temperatures to achieve constant temperature and dehumidification. Specifically, this disclosure allows the introduction of outdoor hot air via the fresh air device when the air conditioner is cooling and dehumidifying and the indoor temperature is close to the set temperature, thereby maintaining the indoor temperature by balancing the cooling capacity. Similarly, this disclosure allows the introduction of outdoor cold air via the fresh air device when the air conditioner is heating and dehumidifying and the indoor temperature is close to the set temperature, thereby maintaining the indoor temperature by balancing the heating capacity. Furthermore, this disclosure allows the fresh air fan speed to be determined based on the current indoor humidity to rationally control the amount of outdoor fresh air introduced, which is beneficial for balancing the heating and cooling in the system. Therefore, this disclosure can achieve constant temperature and dehumidification, ensuring a comfortable experience for indoor users. Moreover, this disclosure eliminates the need for frequent switching between cooling and heating modes to maintain the indoor temperature, thus further reducing wear and tear on the air conditioner and extending its service life.

[0074] Optionally, the processor adjusts the speed of the fresh air fan based on the indoor humidity, including: processor calculation. The processor obtains the target fresh air volume; based on the target fresh air volume, it determines the initial speed of the fresh air fan; the processor controls the fresh air fan to operate at the initial speed. Where L is the target fresh air volume, RH1 is the indoor humidity, RH0 is the target humidity, T2 is the outdoor temperature, T0 is the set temperature, and A is the fresh air volume coefficient. Thus, this embodiment of the invention can calculate an accurate fresh air volume by combining the humidity difference between the indoor and target humidity, and the temperature difference between the outdoor and set temperatures, and match the corresponding initial speed. Therefore, this embodiment of the invention can reasonably control the amount of outdoor fresh air introduced, which is beneficial for balancing the heat and cold in the system. This results in better constant temperature dehumidification, further ensuring the comfort experience of indoor users.

[0075] Combination Figure 4As shown in the illustration, this disclosure provides another method for controlling an air conditioner. The air conditioner includes an indoor unit and a fresh air system. The indoor unit includes an indoor fan and a supply air duct, with both ends of the supply air duct connected to a return air vent and an air outlet, respectively. The fresh air system includes a fresh air fan and a fresh air duct, with a first end of the fresh air duct connected to an outdoor space and a second end connected to a supply air duct. The method includes:

[0076] S401: When the air conditioner executes a dehumidification command, the processor obtains the indoor and outdoor temperatures.

[0077] S402: When the outdoor temperature is greater than or equal to the set temperature, the processor controls the air conditioner to operate in cooling and dehumidification mode.

[0078] S403: When the outdoor temperature is lower than the set temperature, the processor controls the air conditioner to operate in heating and dehumidification mode.

[0079] S404, the processor calculates the difference between the indoor temperature and the set temperature to obtain the indoor temperature difference.

[0080] S405: When the air conditioner is running in cooling and dehumidification mode, if the indoor temperature difference is less than or equal to the upper limit of the preset temperature range, the processor will start the fresh air fan and control the fresh air device to deliver air in the first direction.

[0081] S406, when the air conditioner is running in heating and dehumidification mode, if the indoor temperature difference is greater than or equal to the lower limit of the preset temperature range, the processor starts the fresh air fan and controls the fresh air device to deliver air in the first direction.

[0082] S407, the processor obtains indoor humidity.

[0083] S408, processor computing To achieve the target fresh air volume.

[0084] Where L is the target fresh air volume, RH1 is the indoor humidity, RH0 is the target humidity, T2 is the outdoor temperature, T0 is the set temperature, and A is the fresh air volume coefficient.

[0085] S409, the processor determines the initial speed of the fresh air fan based on the target fresh air volume.

[0086] S410, the processor controls the fresh air fan to run at the initial speed.

[0087] The method for controlling an air conditioner provided in this disclosure combines fresh air and dehumidification functions, and adjusts the operating mode of the air conditioner and the working mode of the fresh air device by acquiring indoor and outdoor temperatures to achieve constant temperature and dehumidification of the indoor environment. Specifically, this disclosure can introduce outdoor hot air using the fresh air device when the air conditioner is cooling and dehumidifying and the indoor temperature is close to the set temperature, thereby maintaining the indoor temperature by balancing the indoor cooling capacity. Similarly, this disclosure can also introduce outdoor cold air using the fresh air device when the air conditioner is heating and dehumidifying and the indoor temperature is close to the set temperature, thereby maintaining the indoor temperature by balancing the indoor heating capacity. Furthermore, this disclosure can calculate the accurate fresh air volume by combining relevant parameters such as the current indoor humidity and match the corresponding initial operating speed. This allows for reasonable control of the amount of outdoor fresh air introduced, which is beneficial for balancing the cooling and heating in the system. Therefore, this disclosure can better achieve constant temperature and dehumidification effects, further ensuring the comfort experience of indoor users. Moreover, this disclosure does not require frequent switching between cooling and heating modes to maintain the indoor temperature, thus further reducing wear and tear on the air conditioner and extending its service life.

[0088] Specifically, in the formula for calculating the target fresh air volume, the humidity difference between the indoor humidity and the target humidity is positively correlated with the target fresh air volume. Therefore, when the humidity difference is large, the dehumidification power of the air conditioner will be set higher, resulting in greater cooling and heating output from the system. Appropriately increasing the amount of outdoor fresh air introduced helps match the system's cooling and heating capacity, thus preventing discomfort to users caused by a continuous drop or rise in indoor temperature.

[0089] Specifically, in the formula for calculating the target fresh air volume, the temperature difference between the outdoor temperature and the set temperature is negatively correlated with the target fresh air volume. Thus, a larger temperature difference indicates better indoor-outdoor heat exchange. Appropriately reducing the amount of outdoor fresh air introduced helps reduce excessive interference from outdoor fresh air with the indoor temperature, thereby preventing discomfort to users caused by the indoor temperature deviating significantly from the set temperature.

[0090] Optionally, the processor calculates Before obtaining the target fresh air volume, the process also includes: the processor acquiring the fresh air volume coefficient. This fresh air volume coefficient is related to the compressor operating frequency, outdoor temperature, and the indoor fan's base speed. Thus, this embodiment of the disclosure can obtain a suitable fresh air volume coefficient based on specific operating conditions to calculate a more accurate initial speed of the fresh air fan. This allows for reasonable control of the amount of outdoor fresh air introduced, which is beneficial for balancing the heating and cooling in the system.

[0091] Optionally, the processor obtains the fresh air volume coefficient, including: the processor obtaining the compressor operating frequency; and the processor searching for the corresponding fresh air volume coefficient from a preset correlation table based on the compressor operating frequency and the outdoor temperature. In this way, the embodiments of this disclosure can pre-build a correlation table and, combined with the compressor operating frequency and outdoor temperature under the current operating conditions, find a suitable fresh air volume coefficient to calculate a more accurate initial speed of the fresh air fan. This allows for reasonable control of the amount of outdoor fresh air introduced, which is beneficial for balancing the heating and cooling in the system.

[0092] Optionally, the fresh air volume coefficient A is set in the preset association relationship based on the low-speed airflow of the indoor fan. The low-speed airflow of the indoor fan is typically preset to 200m³ / h. 3 / h. Optionally, the preset correlation includes one or more correspondences between the fresh air volume coefficient A and the compressor operating frequency and outdoor temperature. Optionally, Table 1 shows a correspondence between the fresh air volume coefficient A and the compressor operating frequency and outdoor temperature, as shown in the table below:

[0093] Table 1

[0094]

[0095]

[0096] Combination Figure 5 As shown in the illustration, this disclosure provides another method for controlling an air conditioner. The air conditioner includes an indoor unit and a fresh air system. The indoor unit includes an indoor fan and a supply air duct, with both ends of the supply air duct connected to a return air vent and an air outlet, respectively. The fresh air system includes a fresh air fan and a fresh air duct, with a first end of the fresh air duct connected to an outdoor space and a second end connected to a supply air duct. The method includes:

[0097] S501: When the air conditioner executes a dehumidification command, the processor obtains the indoor and outdoor temperatures.

[0098] S502: When the outdoor temperature is greater than or equal to the set temperature, the processor controls the air conditioner to operate in cooling and dehumidification mode.

[0099] S503: When the outdoor temperature is lower than the set temperature, the processor controls the air conditioner to operate in heating and dehumidification mode.

[0100] The S504 processor calculates the difference between the indoor temperature and the set temperature to obtain the indoor temperature difference.

[0101] S505: When the air conditioner is running in cooling and dehumidification mode, if the indoor temperature difference is less than or equal to the upper limit of the preset temperature range, the processor will start the fresh air fan and control the fresh air device to deliver air in the first direction.

[0102] S506, when the air conditioner is running in heating and dehumidification mode, if the indoor temperature difference is greater than or equal to the lower limit of the preset temperature range, the processor starts the fresh air fan and controls the fresh air device to deliver air in the first direction.

[0103] S507, the processor obtains indoor humidity.

[0104] S508, processor computing To achieve the target fresh air volume.

[0105] Where L is the target fresh air volume, RH1 is the indoor humidity, RH0 is the target humidity, T2 is the outdoor temperature, T0 is the set temperature, and A is the fresh air volume coefficient.

[0106] S509: The processor determines the initial speed of the fresh air fan based on the target fresh air volume.

[0107] The S510 processor controls the fresh air fan to run at the initial speed.

[0108] The S511 processor periodically obtains the indoor temperature.

[0109] S512, the processor calculates the difference between the new indoor temperature and the set temperature to obtain the new indoor temperature difference.

[0110] When the new indoor temperature difference is not within the preset temperature range, the processor adjusts the fresh air fan speed according to the operating mode and the new indoor temperature difference.

[0111] The method for controlling an air conditioner provided in this disclosure combines a fresh air function with a dehumidification function. It adjusts the air conditioner's operating mode and the fresh air device's working mode by acquiring indoor and outdoor temperatures to achieve constant temperature dehumidification. Specifically, this disclosure allows the introduction of outdoor hot air via the fresh air device when the air conditioner is cooling and dehumidifying and the indoor temperature is close to the set temperature, thereby maintaining the indoor temperature by balancing the cooling capacity. Similarly, this disclosure allows the introduction of outdoor cold air via the fresh air device when the air conditioner is heating and dehumidifying and the indoor temperature is close to the set temperature, thereby maintaining the indoor temperature by balancing the heating capacity. Furthermore, this disclosure allows the calculation of an accurate fresh air volume based on relevant parameters such as current indoor humidity, and matches the corresponding initial operating speed. This enables reasonable control of the initial introduction of outdoor fresh air, which is beneficial for balancing the heating and cooling in the system. After the fresh air function is activated, this disclosure continuously monitors the indoor temperature and adjusts the fresh air fan speed in real time based on the difference between the indoor temperature and the set temperature to accurately adjust the subsequent introduction of outdoor fresh air. This ensures that the air conditioner maintains a good constant temperature effect throughout the entire dehumidification process. Therefore, the embodiments disclosed herein can better achieve constant temperature and dehumidification effects, further ensuring the comfort experience of indoor users. Furthermore, the embodiments disclosed herein do not require frequent switching between cooling and heating modes to maintain indoor temperature, thus further reducing wear and tear on the air conditioner and helping to extend its service life.

[0112] Optionally, the preset temperature range can be set according to the user's needs. Preferably, the preset temperature range can be set to [-1℃, 1℃]. This value can also be adjusted according to the difference between indoor and outdoor environments, and can be set to any other range such as [-2℃, 2℃]. For example, when the temperature difference between indoors and outdoors is small, the preset temperature range can be adjusted to be larger to introduce outdoor fresh air earlier using the fresh air device. When the temperature difference between indoors and outdoors is large, the preset temperature range can be adjusted to be smaller to reduce the fluctuation of indoor temperature and further improve the constant temperature effect.

[0113] Optionally, the processor adjusts the fresh air fan speed based on the operating mode and the new indoor temperature difference. This includes reducing the fresh air fan speed if the new indoor temperature difference exceeds the upper limit of the preset temperature range when the air conditioner is operating in cooling / dehumidification mode. In this case, as the cooling / dehumidification mode operates, the indoor temperature rises and moves away from the set temperature, indicating that too much heat is being introduced through the outdoor fresh air. Appropriately reducing the fresh air fan speed at this point reduces the heat introduced by the fresh air system, gradually bringing it into balance with the cooling capacity generated by the air conditioner. This allows the air conditioner to maintain a good constant temperature throughout the entire dehumidification process, better ensuring the comfort of indoor users.

[0114] Optionally, the processor adjusts the fresh air fan speed based on the operating mode and the new indoor temperature difference. This includes maintaining the current fresh air fan speed if the new indoor temperature difference falls within a preset temperature range when the air conditioner is operating in cooling / dehumidification mode. In this way, as the cooling / dehumidification mode operates, the indoor temperature remains stable near the set temperature, indicating that the heat introduced by the fresh air unit and the cooling capacity generated by the air conditioner are balanced. Maintaining the current fresh air fan speed ensures that the air conditioner maintains a good constant temperature throughout the dehumidification process, thus better guaranteeing the comfort of indoor users.

[0115] Optionally, the processor adjusts the fresh air fan speed based on the operating mode and the new indoor temperature difference. This includes increasing the fresh air fan speed when the air conditioner is operating in cooling / dehumidification mode and the new indoor temperature difference is less than the lower limit of the preset temperature range. As the cooling / dehumidification mode operates, the indoor temperature continues to decrease and moves away from the set temperature, indicating that less heat is being introduced through the outdoor fresh air. Appropriately increasing the fresh air fan speed at this time allows the heat introduced by the fresh air unit to increase, gradually balancing with the cooling capacity generated during the air conditioner's cooling process. This ensures that the air conditioner maintains a good constant temperature throughout the entire dehumidification process, better guaranteeing the comfort of indoor users.

[0116] Optionally, the processor adjusts the fresh air fan speed based on the operating mode and the new indoor temperature difference. This includes increasing the fresh air fan speed when the air conditioner is operating in heating / dehumidification mode if the new indoor temperature difference exceeds the upper limit of the preset temperature range. As the heating / dehumidification mode operates, the indoor temperature continues to rise and moves away from the set temperature, indicating that less cooling is being introduced through outdoor fresh air. Appropriately increasing the fresh air fan speed at this time allows the fresh air unit to introduce more cooling, gradually balancing it with the heating output of the air conditioner. This ensures that the air conditioner maintains a good constant temperature throughout the dehumidification process, better guaranteeing the comfort of indoor users.

[0117] Optionally, the processor adjusts the fresh air fan speed based on the operating mode and the new indoor temperature difference. This includes maintaining the current fresh air fan speed when the air conditioner is operating in heating / dehumidification mode and the new indoor temperature difference falls within a preset temperature range. In this way, as the heating / dehumidification mode operates, the indoor temperature remains stable near the set temperature, indicating that the cooling capacity introduced by the fresh air unit is balanced with the heating capacity generated by the air conditioner. Maintaining the current fresh air fan speed ensures that the air conditioner maintains a good constant temperature throughout the dehumidification process, thus better guaranteeing the comfort of indoor users.

[0118] Optionally, the processor adjusts the fresh air fan speed based on the operating mode and the new indoor temperature difference. This includes reducing the fresh air fan speed when the air conditioner is operating in heating / dehumidification mode and the new indoor temperature difference is less than the lower limit of the preset temperature range. Thus, as the heating / dehumidification mode operates, the indoor temperature decreases and moves away from the set temperature, indicating that too much cooling is being introduced through the outdoor fresh air. Appropriately reducing the fresh air fan speed at this point reduces the amount of cooling introduced by the fresh air unit, gradually balancing it with the heating output of the air conditioner. This allows the air conditioner to maintain a good constant temperature throughout the entire dehumidification process, better ensuring the comfort of indoor users.

[0119] Optionally, the processor adjusts the fresh air fan speed based on the operating mode and the new indoor temperature difference. It also includes: when the air conditioner is operating in cooling / dehumidification mode, if the new indoor temperature difference is less than a first preset temperature, controlling the fresh air fan to rotate so that the fresh air unit delivers air in a second direction. The first preset temperature is less than the lower limit of the preset temperature range. Thus, as the cooling / dehumidification mode operates, the indoor temperature continues to decrease and becomes significantly lower than the set temperature, indicating that the heat introduced through the outdoor fresh air is insufficient to balance the cooling capacity generated by the air conditioner. Controlling the fresh air unit to reverse its airflow direction at this time allows excess cooling capacity generated by the air conditioner to be exhausted outdoors through the fresh air duct. This reduces the impact of the cooling / dehumidification mode on the indoor environment and prevents the indoor temperature from continuing to drop, thus avoiding extreme discomfort for the user.

[0120] Optionally, the second direction involves supplying air from the second end to the first end via a fresh air duct. In this way, the fresh air unit can exhaust excess cooling capacity generated by the air conditioner to the outside along the fresh air duct, thereby reducing the impact of the cooling and dehumidification mode on the indoor environment and preventing the indoor temperature from continuing to drop, which could cause extreme discomfort to the user.

[0121] Optionally, the first preset temperature can be set according to the user's own needs. Preferably, the first preset temperature can be set to -3℃. This value can also be adjusted according to indoor environmental parameters, and can also be set to any other value such as -2℃ or -4℃. For example, in cases of high indoor humidity, the first preset temperature can be adjusted slightly higher to prevent the indoor temperature from deviating too much from the set temperature, thereby avoiding the phenomenon of the user catching a cold due to prolonged dehumidification.

[0122] Optionally, the processor adjusts the fresh air fan speed based on the operating mode and the new indoor temperature difference. It also includes: when the air conditioner is operating in heating / dehumidification mode, if the new indoor temperature difference is greater than a second preset temperature, controlling the fresh air fan to rotate so that the fresh air unit delivers air in a second direction. The second preset temperature is greater than the upper limit of the preset temperature range. Thus, as the heating / dehumidification mode operates, the indoor temperature continues to rise and far exceeds the set temperature, indicating that the cooling capacity introduced through the outdoor fresh air is insufficient to balance the heat generated during the air conditioner's heating process. At this point, controlling the fresh air unit to reverse its airflow direction allows the excess heat generated by the air conditioner to be exhausted outdoors through the fresh air duct. This reduces the impact of the heating / dehumidification mode on the indoor environment and prevents the indoor temperature from continuing to rise, causing extreme discomfort to the user.

[0123] Optionally, the second direction involves supplying air from the second end to the first end via a fresh air duct. In this way, the fresh air unit can exhaust excess heat generated by the air conditioner to the outside along the fresh air duct, thereby reducing the impact of the heating and dehumidification mode on the indoor environment and preventing the indoor temperature from continuing to rise, which could cause extreme discomfort to the user.

[0124] Optionally, the second preset temperature can be set according to the user's own needs. Preferably, the second preset temperature can be set to 3℃. This value can also be adjusted according to indoor environmental parameters, and can also be set to any other value such as 2℃ or 4℃. For example, in cases of high indoor humidity, the second preset temperature can be adjusted lower to prevent the indoor temperature from deviating too much from the set temperature, thereby avoiding the phenomenon of the user overheating due to prolonged dehumidification.

[0125] Combination Figure 6 As shown in the illustration, this disclosure provides another method for controlling an air conditioner. The air conditioner includes an indoor unit and a fresh air system. The indoor unit includes an indoor fan and a supply air duct, with both ends of the supply air duct connected to a return air vent and an air outlet, respectively. The fresh air system includes a fresh air fan and a fresh air duct, with a first end of the fresh air duct connected to an outdoor space and a second end connected to a supply air duct. The method includes:

[0126] S601: When the air conditioner executes a dehumidification command, the processor obtains the indoor and outdoor temperatures.

[0127] S602, the processor adjusts the air conditioner's operating mode based on the outdoor temperature.

[0128] The S603 processor controls the operation of the fresh air unit based on the adjusted operating mode and indoor temperature.

[0129] The S604 processor periodically acquires indoor humidity data.

[0130] S605: When the indoor humidity is less than or equal to the target humidity, the processor controls the air conditioner to stop executing the dehumidification command.

[0131] The method for controlling an air conditioner provided in this disclosure combines fresh air and dehumidification functions. It adjusts the air conditioner's operating mode and the fresh air device's working mode by acquiring indoor and outdoor temperatures to achieve constant temperature and dehumidification. Specifically, this disclosure allows the introduction of outdoor hot air via the fresh air device while the air conditioner is cooling and dehumidifying, maintaining indoor temperature by balancing the cooling capacity. Similarly, this disclosure allows the introduction of outdoor cold air via the fresh air device while the air conditioner is heating and dehumidifying, maintaining indoor temperature by balancing the heating capacity. Furthermore, when the indoor humidity reaches the target humidity, this disclosure automatically exits the dehumidification mode to avoid the impact of prolonged dehumidification on user comfort. Therefore, this disclosure achieves constant temperature and dehumidification, ensuring a comfortable indoor experience for users. Moreover, this disclosure eliminates the need for frequent switching between cooling and heating modes to maintain indoor temperature, further reducing wear and tear on the air conditioner and extending its lifespan.

[0132] Optionally, the target humidity can be set according to the user's own needs. Preferably, the target humidity can be set to 50%. This value can also be adjusted according to other indoor parameters, or set to any other value such as 45% or 55%. For example, for situations where the set temperature is high, the target humidity temperature can be adjusted lower to reduce the absolute humidity in the air, thereby helping to better ensure the user's comfort experience.

[0133] Combination Figure 7 As shown, this disclosure provides an apparatus for controlling an air conditioner, including a processor 701 and a memory 702. Optionally, the apparatus may further include a communication interface 703 and a bus 704. The processor 701, communication interface 703, and memory 702 can communicate with each other via the bus 704. The communication interface 703 can be used for information transmission. The processor 701 can call logical instructions in the memory 702 to execute the method for controlling the air conditioner described in the above embodiment.

[0134] Furthermore, the logic instructions in the aforementioned memory 702 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0135] The memory 702, 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 701 executes functional applications and data processing by running the program instructions / modules stored in the memory 702, that is, it implements the method for controlling the air conditioner in the above embodiments.

[0136] The memory 702 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 702 may include high-speed random access memory and may also include non-volatile memory.

[0137] This disclosure provides an air conditioner, including an indoor unit, a fresh air system, and the aforementioned device for controlling the air conditioner. The indoor unit includes an indoor fan and a supply air duct, with both ends of the supply air duct connected to a return air vent and an air outlet, respectively. The fresh air system includes a fresh air fan and a fresh air duct, with a first end of the fresh air duct connected to the outdoor space and a second end connected to the supply air duct. The aforementioned device for controlling the air conditioner is electrically connected to the indoor unit and the fresh air system.

[0138] Optionally, the indoor unit also includes an indoor heat exchanger. When the indoor heat exchanger functions as an evaporator, the temperature of the indoor evaporator gradually drops below the dew point temperature as the refrigerant circulates. At this time, humid air from the indoor environment is drawn into the indoor unit, and the water vapor in it condenses into small water droplets on the evaporator tube walls, forming condensate. By draining the condensate and expelling dry air through the air outlet, the air conditioner achieves dehumidification.

[0139] Optionally, there may be multiple indoor heat exchangers. The specific number is not limited here. In this way, by controlling some or all of the indoor heat exchangers to function as evaporators, the embodiments of this disclosure can control the air conditioner to complete the dehumidification work in heating mode or cooling mode.

[0140] Optionally, the indoor heat exchanger includes a first indoor heat exchanger and a second indoor heat exchanger connected in series. A first electronic expansion valve is installed in the pipeline between the first and second indoor heat exchangers, and a second electronic expansion valve is installed in the pipeline between the second indoor heat exchanger and the outdoor heat exchanger. Thus, in conjunction with the air conditioner's operating mode, this embodiment of the present disclosure can adjust the operating state of the first and second indoor heat exchangers by controlling the opening degree of the electronic expansion valves to achieve dehumidification in heating or cooling mode.

[0141] Specifically, when operating in cooling and dehumidification mode, the second electronic expansion valve is throttled while the first electronic expansion valve is fully opened. At this time, both the first and second indoor heat exchangers function as evaporators. Therefore, this embodiment of the invention can control the air conditioner to complete dehumidification in cooling mode.

[0142] Specifically, when operating in cooling and dehumidification mode, the first electronic expansion valve is throttled, and the second electronic expansion valve is fully opened. At this time, the first indoor heat exchanger acts as an evaporator, so the embodiments of this disclosure can control the air conditioner to complete the dehumidification work in cooling mode.

[0143] Specifically, when operating in heating and dehumidification mode, the first electronic expansion valve is throttled, and the second electronic expansion valve is fully opened. At this time, the second indoor heat exchanger acts as an evaporator, so the embodiments of this disclosure can control the air conditioner to complete the dehumidification work in heating mode.

[0144] Optionally, the indoor heat exchanger is located upstream of the air supply duct, with its second end connected to the downstream side of the air supply duct. This embodiment of the present disclosure avoids the situation where the introduced outdoor fresh air affects the evaporator temperature, thus reducing dehumidification efficiency.

[0145] Optionally, the fresh air duct is equipped with a filter. In this way, embodiments of the present disclosure can improve the air quality of the introduced outdoor fresh air, thereby preventing indoor air pollution.

[0146] This disclosure provides a storage medium storing computer-executable instructions, which, when executed, perform the aforementioned method for controlling an air conditioner.

[0147] The aforementioned storage medium can be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0148] 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, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0149] 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 operation 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 describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, 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 term "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 exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises 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 the 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, the relevant parts can be referred to the description of the method section.

[0150] 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.

[0151] 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.

[0152] 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 an indoor unit and a fresh air system. The indoor unit includes an indoor fan and a supply air duct. The two ends of the supply air duct are connected to a return air vent and an air outlet, respectively. The fresh air system includes a fresh air fan and a fresh air duct. The first end of the fresh air duct is connected to the outdoor space, and the second end of the fresh air duct is connected to the supply air duct. The method includes: When the air conditioner executes the dehumidification command, the indoor temperature and outdoor temperature are obtained; Adjust the operating mode of the air conditioner according to the outdoor temperature; The operation of the fresh air device is controlled according to the adjusted operating mode and indoor temperature; The step of adjusting the operating mode of the air conditioner according to the outdoor temperature includes: controlling the air conditioner to operate in cooling and dehumidifying mode when the outdoor temperature is greater than or equal to the set temperature; or controlling the air conditioner to operate in heating and dehumidifying mode when the outdoor temperature is less than the set temperature. The step of controlling the operation of the fresh air device according to the adjusted operating mode and indoor temperature includes: calculating the difference between the indoor temperature and the set temperature to obtain the indoor temperature difference; when the air conditioner is operating in cooling and dehumidification mode, if the indoor temperature difference is less than or equal to the upper limit of the preset temperature range, then the fresh air fan is activated and the fresh air device is controlled to supply air in a first direction; or, when the air conditioner is operating in heating and dehumidification mode, if the indoor temperature difference is greater than or equal to the lower limit of the preset temperature range, then the fresh air fan is activated and the fresh air device is controlled to supply air in a first direction; wherein, the first direction is supplying air from the first end to the second end through the fresh air duct; After starting the fresh air fan, the process also includes: periodically acquiring the indoor temperature; calculating the difference between the new indoor temperature and the set temperature to obtain a new indoor temperature difference; and adjusting the speed of the fresh air fan according to the operating mode and the new indoor temperature difference if the new indoor temperature difference does not fall within the preset temperature range. The step of adjusting the fresh air fan speed based on the operating mode and the new indoor temperature difference includes: When the air conditioner is operating in cooling and dehumidification mode, if the new indoor temperature difference is less than the lower limit of the preset temperature range, the speed of the fresh air fan is increased; if the new indoor temperature difference is less than the first preset temperature, the direction of the fresh air fan is controlled so that the fresh air device delivers air in a second direction; wherein, the first preset temperature is less than the lower limit of the preset temperature range; or... When the air conditioner is operating in heating and dehumidification mode, if the new indoor temperature difference is greater than the upper limit of the preset temperature range, the speed of the fresh air fan is increased; if the new indoor temperature difference is greater than the second preset temperature, the direction of the fresh air fan is controlled so that the fresh air device delivers air in the second direction; wherein, the second preset temperature is greater than the upper limit of the preset temperature range; the second direction is to deliver air from the second end to the first end through the fresh air duct.

2. The method according to claim 1, characterized in that, After starting the fresh air fan and controlling the fresh air device to deliver air in the first direction, the method further includes: Obtain indoor humidity; Adjust the speed of the fresh air fan according to the indoor humidity.

3. The method according to claim 2, characterized in that, The step of adjusting the speed of the fresh air fan according to the indoor humidity includes: calculate To obtain the target fresh air volume; Determine the initial speed of the fresh air fan based on the target fresh air volume; Control the fresh air fan to operate at the initial speed; Where L is the target fresh air volume, RH1 is the indoor humidity, RH0 is the target humidity, T2 is the outdoor temperature, T0 is the set temperature, and A is the fresh air volume coefficient.

4. The method according to claim 1, characterized in that, The method of adjusting the fresh air fan speed according to the operating mode and the new indoor temperature difference also includes: When the air conditioner is operating in cooling and dehumidification mode, if the new indoor temperature difference exceeds the upper limit of the preset temperature range, the speed of the fresh air fan is reduced; or, When the air conditioner is operating in cooling and dehumidification mode, if the new indoor temperature difference falls within the preset temperature range, the fresh air fan speed is maintained; or, When the air conditioner is operating in heating and dehumidification mode, if the new indoor temperature difference falls within the preset temperature range, the fresh air fan speed is maintained; or, When the air conditioner is operating in heating and dehumidification mode, if the new indoor temperature difference is less than the lower limit of the preset temperature range, the speed of the fresh air fan will be reduced.

5. The method according to any one of claims 1 to 4, characterized in that, After controlling the operation of the fresh air device according to the adjusted operating mode and indoor temperature, the method further includes: Periodically measure indoor humidity; When the indoor humidity is less than or equal to the target humidity, the air conditioner is controlled to stop executing the dehumidification command.

6. 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.

7. An air conditioner, characterized in that, include: The indoor unit includes an indoor fan and an air supply duct, the two ends of which are connected to a return air vent and an air outlet, respectively. The fresh air device includes a fresh air fan and a fresh air duct, wherein the first end of the fresh air duct is connected to the outdoor space and the second end of the fresh air duct is connected to the air supply duct. The device for controlling an air conditioner as described in claim 6 is electrically connected to the indoor unit and the fresh air device.

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

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