Air conditioner and control method thereof

Abstract

The application discloses an air conditioner and a control method of the air conditioner. The air conditioner comprises a casing, a refrigerant circulation loop, an instruction receiving module, a guide vane, an indoor fan and a controller. The controller is configured to: calculate initial air volume information according to collected initial angle information and initial wind speed information, and control the air volume of the air conditioner to be the initial air volume; receive a guide vane angle adjustment instruction and adjust the angle of the guide vane to a specified angle, or receive a guide vane adjustment instruction and a wind speed adjustment instruction, adjust the angle of the guide vane to the specified angle, and adjust the wind speed of the indoor fan to a specified wind speed; calculate target air volume information according to obtained current angle information and current wind speed information, and control the air volume of the air conditioner to be the target air volume according to the target air volume information; compare the initial air volume and the target air volume and obtain a comparison result, calculate target frequency information of a compressor according to the comparison result, and control the compressor to operate at the target frequency according to the target frequency information.

Description

Technical Field

[0001] This invention relates to the field of air conditioning, and in particular to an air conditioner and its control method. Background Technology

[0002] After the air conditioner is turned on, the compressor's operating frequency and the angle of the air guide vane are determined according to the actual operating environment. If the user adjusts the angle of the air guide vane at the indoor unit's air outlet according to personal preference, the change in the air guide vane's angle will cause a change in the indoor unit's air volume, which in turn will cause changes in the overall air conditioning operating parameters, such as load, energy efficiency, indoor air outlet temperature, exhaust, exhaust pressure, and evaporation temperature in cooling or heating modes.

[0003] In existing technology, variable frequency air conditioners generally operate according to a set operating frequency. When the angle of the air guide plate changes, the compressor's operating frequency cannot be automatically adjusted. Since the air conditioner cannot adjust its operating parameters or perform protection in time, it cannot guarantee that the air conditioner will always maintain high energy efficiency. Furthermore, changes in the angle of the air guide plate can also cause problems such as increased air conditioner noise, increased vibration, and the generation of abnormal sounds and odors. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] Therefore, one objective of this invention is to provide an air conditioner that obtains the air volume corresponding to the adjusted air guide vane angle based on different air guide vane angles, or obtains the air volume corresponding to the adjusted air guide vane angle and wind speed based on different air guide vane angles and wind speeds, and adjusts the air conditioner's operating frequency according to the air volume. This allows the compressor's operating frequency to change with the angle of the air guide vane or with the angle of the air guide vane and the indoor fan speed. This enables the air conditioner to automatically adjust the compressor's operating frequency when the angle of the air guide vane or the angle of the air guide vane and the wind speed of the indoor fan change, thereby automatically adjusting the air conditioner's output capacity, ensuring that the air conditioner always maintains high energy efficiency operation, and avoiding problems such as high noise, vibration, abnormal sounds, and odors caused by changes in the angle of the air guide vane.

[0006] Therefore, the second objective of this invention is to provide a control method for an air conditioner.

[0007] To achieve the above objectives, embodiments of the present invention provide an air conditioner, comprising: a casing; a refrigerant circulation loop disposed within the casing, wherein the refrigerant circulates within a loop consisting of a compressor, condenser, expansion valve, evaporator, four-way valve, and pressure reducer; an instruction receiving module, configured to output an air guide vane angle adjustment signal in response to an air guide vane angle adjustment instruction and to output a fan speed adjustment signal in response to a fan speed adjustment instruction; an air guide vane disposed within the casing, configured to adjust to a specified angle according to the air guide vane angle adjustment signal; an indoor fan disposed within the casing, configured to adjust the fan speed to a specified fan speed according to the fan speed adjustment signal; and a controller configured to: collect initial angle information of the air guide vane and initial fan speed information of the indoor fan, calculate initial air volume information based on the initial angle information and the initial fan speed information, and, based on the... The system controls the airflow of the air conditioner to the initial airflow information; upon receiving the air guide vane angle adjustment command, it adjusts the angle of the air guide vane to the specified angle, or upon receiving the air guide vane adjustment command and the wind speed adjustment command, it adjusts the angle of the air guide vane to the specified angle and adjusts the wind speed of the indoor fan to the specified wind speed; it acquires the current angle information of the air guide vane and the current wind speed information of the indoor fan, calculates the target airflow information based on the current angle information and the current wind speed information, and controls the airflow of the air conditioner to the target airflow based on the target airflow information; it compares the initial airflow and the target airflow and acquires the comparison result, calculates the target frequency information of the compressor based on the comparison result, and controls the compressor to operate at the target frequency based on the target frequency information.

[0008] According to an embodiment of the present invention, when the air conditioner is running, if the user adjusts the angle of the air guide vane, or adjusts the angle of the air guide vane and the air speed of the indoor fan, the air conditioner can automatically adjust the operating frequency of the compressor according to the adjusted angle of the air guide vane, or according to the adjusted angle of the air guide vane and the adjusted air speed. This allows the operating frequency of the compressor to be autonomously adjusted according to the angle of the air guide vane and the air speed, thereby automatically adjusting the output capacity of the air conditioner and ensuring that the air conditioner can always operate in a high-efficiency state. This avoids problems such as excessive noise, vibration, abnormal sounds, and odors caused by changes in the angle of the air guide vane, thus ensuring a good user experience.

[0009] In some embodiments, before acquiring the initial angle information of the air guide plate and the initial wind speed information of the indoor fan, the controller is specifically configured to: acquire the adjustable angle range of the air guide plate; partition the adjustable angle range based on different wind speeds and determine the angle endpoint value of each region; determine the air volume endpoint value corresponding to each angle endpoint value under different wind speeds; and acquire the optimal angle information, maximum air volume information, and maximum operating frequency information of the air guide plate under different wind speeds.

[0010] In some embodiments, when the initial angle information of the air guide plate and the initial wind speed information of the indoor fan are collected, and the initial air volume information is calculated based on the initial angle information and the initial wind speed information, and the air volume of the air conditioner is controlled to be the initial air volume based on the initial air volume information, the controller is specifically configured to: collect the initial angle information of the air guide plate and the initial wind speed information of the indoor fan; determine the initial wind speed of the indoor fan based on the initial wind speed information; determine the first region where the initial angle information is located and obtain the first set of angle endpoint values ​​of the first region; obtain the first set of air volume endpoint values ​​corresponding to the first set of angle endpoint values ​​under the initial wind speed; calculate the initial air volume information based on the first set of angle endpoint values ​​and the first set of air volume endpoint values; and control the air volume of the air conditioner to be the initial air volume based on the initial air volume information.

[0011] In some embodiments, when receiving the air guide plate angle adjustment command and adjusting the angle of the air guide plate to a specified angle, acquiring the current angle information of the air guide plate and the current wind speed information of the indoor fan, calculating the target air volume information based on the current angle information and the current wind speed information, and controlling the air volume of the air conditioner to the target air volume based on the target air volume information, the controller is specifically configured to: collect the current angle information and the initial wind speed information, wherein the initial wind speed information is the current wind speed information; determine the initial wind speed of the indoor fan based on the initial wind speed information, determine the second region where the current angle information is located and acquire the second set of angle endpoint values ​​of the second region, acquire the second set of air volume endpoint values ​​corresponding to the second set of angle endpoint values ​​under the initial wind speed; calculate the first target air volume information based on the second set of angle endpoint values ​​and the second set of air volume endpoint values, and control the air volume of the air conditioner to the first target air volume based on the first target air volume information.

[0012] In some embodiments, when comparing the initial air volume and the target air volume and obtaining a comparison result, calculating the target frequency information of the compressor based on the comparison result, and controlling the compressor to operate at the target frequency based on the target frequency information, the controller is specifically configured to: compare the initial air volume and the first target air volume; if the initial air volume is greater than the first target air volume, calculate the first target frequency information of the compressor according to the formula fb1=fa+[(Qa-Qb) / Qa]*[(fmax1-fa) / (Qmax1-Qa)], and control the compressor to operate at the first target frequency based on the first target frequency information; compare the initial air volume and the target air volume... The first target air volume is given. If the initial air volume is less than the first target air volume, the second target frequency information of the compressor is calculated according to the formula fb2=fa-[(Qb-Qa) / Qa]*[(fmax1-fa) / (Qmax1-Qa)]. The compressor is controlled to operate at the second target frequency according to the second target frequency information. Wherein, fb1 is the first target frequency information, fb2 is the second target frequency information, fa is the initial operating frequency information, Qb is the first target air volume information, Qa is the initial air volume information, fmax1 is the maximum operating frequency information under the initial wind speed, and Qmax1 is the maximum air volume information under the initial wind speed.

[0013] In some embodiments, upon receiving the air guide plate adjustment command and the wind speed adjustment command, adjusting the angle of the air guide plate to a specified angle and adjusting the wind speed of the indoor fan to a specified wind speed, acquiring the current angle information of the air guide plate and the current wind speed information of the indoor fan, calculating the target air volume information based on the current angle information and the current wind speed information, and controlling the air volume of the air conditioner to the target air volume based on the target air volume information, the controller is specifically configured to: collect the current angle information and the current wind speed information; determine the current wind speed of the indoor fan based on the current wind speed information, determine the third region where the current angle information is located and acquire the third set of angle endpoint values ​​of the third region, acquire the third set of air volume endpoint values ​​corresponding to the third set of angle endpoint values ​​at the current wind speed; calculate the second target air volume information based on the third set of angle endpoint values ​​and the third set of air volume endpoint values, and control the air volume of the air conditioner to the second target air volume based on the second target air volume information.

[0014] In some embodiments, when comparing the initial air volume and the target air volume and obtaining a comparison result, calculating the target frequency information of the compressor based on the comparison result, and controlling the compressor to operate at the target frequency based on the target frequency information, the controller is specifically configured to: compare the initial air volume and the second target air volume; if the initial air volume is greater than the second target air volume, calculate the third target frequency information of the compressor according to the formula fc1=fa-[(Qa-Qc) / Qa]*[(fmax2-fa) / (Qmax2-Qa)], and control the compressor to operate at the third target frequency based on the third target frequency information; compare the initial air volume and the target air volume... The second target air volume is stated. If the initial air volume is less than the second target air volume, the fourth target frequency information of the compressor is calculated according to the formula fc2=fa+[(Qc-Qa) / Qa]*[(fmax2-fa) / (Qmax2-Qa)]. The compressor is then controlled to operate at the fourth target frequency according to the fourth target frequency information. Wherein, fc1 is the third target frequency information, fc2 is the fourth target frequency information, fa is the initial operating frequency information, Qc is the second target air volume information, Qa is the initial air volume information, fmax2 is the maximum operating frequency information at the current wind speed, and Qmax2 is the maximum air volume information at the current wind speed.

[0015] In some embodiments, when calculating initial air volume information based on the initial angle information and the initial wind speed information, or calculating target air volume information based on the current angle information and the current wind speed information, the controller is specifically configured to: calculate the air volume information based on the initial air volume information, a set of angle endpoint values ​​and a corresponding set of air volume endpoint values ​​in the region where the angle information of the air guide plate is located under different wind speeds.

[0016] In some embodiments, when calculating the airflow information based on the initial airflow information, a set of angle endpoint values ​​of the region where the angle information of the air guide plate is located under different wind speeds, and a corresponding set of airflow endpoint values, the controller is specifically configured to: calculate the airflow information according to the formula Q=Q(n-1)-[Q(n-1)-Qn] / [θn-θ(n-1)]*(θ-θ(n-1)), where Q is the airflow information, θ is the angle information, θn and θ(n-1) are respectively a set of angle endpoint values ​​of the region where the angle information of the air guide plate is located under different wind speeds, and Q(n-1) and Qn are respectively a set of airflow endpoint values ​​corresponding to a set of angle endpoint values ​​of the region where the angle information of the air guide plate is located under different wind speeds.

[0017] To achieve the above objectives, embodiments of the present invention provide a control method for an air conditioner, used in any of the air conditioners described above. The control method includes the following steps: acquiring initial angle information of the air guide vane and initial wind speed information of the indoor fan; calculating initial air volume information based on the initial angle information and the initial wind speed information; controlling the air volume of the air conditioner to the initial air volume based on the initial air volume information; receiving an air guide vane angle adjustment command and adjusting the angle of the air guide vane to a specified angle, or receiving the air guide vane adjustment command and the wind speed adjustment command, adjusting the angle of the air guide vane to the specified angle and adjusting the wind speed of the indoor fan to a specified wind speed; acquiring current angle information of the air guide vane and current wind speed information of the indoor fan; calculating target air volume information based on the current angle information and the current wind speed information; controlling the air volume of the air conditioner to the target air volume based on the target air volume information; comparing the initial air volume and the target air volume and obtaining a comparison result; calculating target frequency information of the compressor based on the comparison result; and controlling the compressor to operate at the target frequency based on the target frequency information.

[0018] According to the air conditioner control method of the present invention, when the air conditioner is running, if the user adjusts the angle of the air guide vane, or adjusts the angle of the air guide vane and the air speed of the indoor fan, the air conditioner can automatically adjust the operating frequency of the compressor according to the adjusted angle of the air guide vane, or according to the adjusted angle of the air guide vane and the adjusted air speed. This allows the operating frequency of the compressor to be autonomously adjusted according to the angle of the air guide vane and the air speed, thereby automatically adjusting the output capacity of the air conditioner and ensuring that the air conditioner can always operate in a high-efficiency state. This avoids problems such as high noise, high vibration, abnormal noise and odor caused by changes in the angle of the air guide vane, thus ensuring the user's experience.

[0019] 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

[0020] 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:

[0021] Figure 1 This is a schematic diagram showing the angle of the air guide plate;

[0022] Figure 2 A graph showing the relationship between the operating frequency of the existing compressor and the angle of the air guide plate;

[0023] Figure 3 This is a block diagram of an air conditioner according to an embodiment of the present invention;

[0024] Figure 4This is a schematic diagram of an air conditioner according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram showing the airflow corresponding to different angles of the air guide plate according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram showing the operating frequency of the compressor corresponding to different angles of the air guide plate according to an embodiment of the present invention;

[0027] Figure 7 A flowchart of an air conditioner control method according to an embodiment of the present invention;

[0028] Figure 8 This is a flowchart of a control method for an air conditioner according to another embodiment of the present invention.

[0029] Figure label:

[0030] Air conditioner 10;

[0031] 1. Housing; 2. Refrigerant circulation loop; 3. Command receiving module; 4. Air guide plate; 5. Indoor fan; 6. Controller. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, the air conditioner performs a refrigeration cycle by using a compressor, a condenser, an electronic expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0037] The compressor compresses refrigerant gas under high temperature and pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0038] The electronic expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the electronic expansion valve, returning the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0039] The outdoor unit of an air conditioner refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner includes the indoor heat exchanger, and an electronic expansion valve can be provided in either the indoor or outdoor unit.

[0040] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0041] The angle change of the air guide plate at the indoor unit's air outlet is shown in the diagram. Figure 1 , Figure 1This diagram illustrates the angle of the air guide vane. The minimum allowable operating angle of the air outlet air guide vane is defined as θupn, and the maximum allowable operating angle is defined as θdownn. The adjustable angle range of the air guide vane is θupn - θdownn, meaning the air guide vane can operate between θupn and θdownn. When the air conditioner operates at different fan speeds, there is an optimal angle value θmax for the air guide vane at each operating speed, typically between θupn and θdownn. For example, when the air conditioner is running in cooling mode, with the indoor and outdoor fan speeds and indoor environmental parameters such as indoor and outdoor ambient temperature and humidity remaining constant, the changes in air conditioner operating parameters are monitored by adjusting only the angle of the horizontal air guide vane. For more details, please refer to... Figure 1 Understand the impact of changes in the angle of the air guide vane on the operating parameters of the air conditioner.

[0042] Table 1

[0043] Refrigeration (θmax) Refrigeration (θ below n) Refrigeration (θ on n) Test Machine Capability 5615 5258 5474 EER / COP 3.77 3.60 3.73 The air outlet blows out dry bulb temperature 14.19 13.04 13.79 The air outlet blows out wet bulb temperature 13.35 12.28 12.97 air volume 1034 828.9 952

[0044] As shown in Table 1, for inverter air conditioners, when the air guide vane angle is at the optimal angle θmax, the air conditioner's cooling capacity, energy efficiency, air volume, and outlet air temperature are all at their maximum. When the air guide vane angle changes upwards or downwards from θmax, the air conditioner's cooling capacity, energy efficiency, outlet air temperature, and air volume all change and decrease. In existing technologies, when the compressor is running at a higher frequency, if the user adjusts the air guide vane angle or simultaneously adjusts the air guide vane angle and the indoor fan speed, it causes a drastic change in air volume. Figure 2 The graph shows the relationship between the operating frequency of the existing compressor and the angle of the air guide plate. Figure 2 It is known that after adjusting the air deflector angle, the air conditioner cannot adjust its operating parameters or perform protection in time, and the compressor continues to operate at the frequency set by the air conditioner. When the indoor unit's airflow decreases, if the air conditioner is running in cooling or dehumidifying mode, it can easily lead to insufficient heat exchange of the refrigerant indoors, causing refrigerant flow noise. If it runs for a long time (more than 30 minutes), the indoor evaporator temperature drops, which can easily cause condensation to form on the surface around the air outlet, and the resulting water droplets can damage indoor walls and electrical appliances. If the air conditioner is running in heating mode, prolonged operation (more than 30 minutes) with reduced airflow can easily lead to excessively high indoor air outlet temperatures, causing the plastic parts around the outlet to scorch, producing odors, and making people uncomfortable. Furthermore, when the air deflector angle changes significantly but the airflow of the air conditioner is very low, it can cause a sudden increase in the operating pressure of the entire air conditioning refrigeration system, leading to increased compressor vibration and potentially causing pipe rupture. In addition, a sudden increase in the compressor load will also increase the noise of the compressor operation, which may easily cause complaints from other users. Furthermore, the operating noise of the compressor may also be transmitted into the room, generating abnormal noise and disturbances.

[0045] This invention proposes an air conditioner and its control method. By obtaining the air volume corresponding to the adjusted air guide vane angle based on different air guide vane angles, or by obtaining the air volume corresponding to the adjusted air guide vane angle and wind speed based on different air guide vane angles and wind speeds, and adjusting the air conditioner's operating frequency according to the air volume, the compressor's operating frequency can change with the angle of the air guide vane or with the angle of the air guide vane and the indoor fan speed. This allows the air conditioner to automatically adjust the compressor's operating frequency when the angle of the air guide vane or the angle of the air guide vane and the wind speed of the indoor fan change, thereby automatically adjusting the air conditioner's output capacity, ensuring that the air conditioner always maintains high energy efficiency operation, and avoiding problems such as high noise, vibration, abnormal sounds, and odors caused by changes in the angle of the air guide vane.

[0046] The following is for reference. Figures 3-8 An air conditioner and its control method according to embodiments of the present invention are described.

[0047] Figure 3 This is a block diagram of an air conditioner according to an embodiment of the present invention; Figure 4 This is a schematic diagram of an air conditioner according to an embodiment of the present invention. It can be combined with... Figure 3 and Figure 4 Understand the various components in the air conditioner 10 according to an embodiment of the present invention. The air conditioner 10 includes a casing 1, a refrigerant circulation loop 2, an instruction receiving module 3, an air guide plate 4, an indoor fan 5, and a controller 6. Among them, Figure 4 The refrigerant circulation loop 2, command receiving module 3, and controller 6 are not shown in the diagram.

[0048] The refrigerant circulation loop 2 is located inside the casing 1, allowing the refrigerant to circulate within a loop consisting of the compressor, condenser, expansion valve, evaporator, four-way valve, and pressure reducer. The command receiving module 3 outputs a guide vane angle adjustment signal in response to an air guide vane angle adjustment command and a fan speed adjustment signal in response to a fan speed adjustment command. This command receiving module 3 can be a control panel on the air conditioner 10 or a wireless receiving module inside the casing 1. Users can directly send air guide vane angle adjustment commands and fan speed adjustment commands via the touch control panel, or via the air conditioner remote control, or remotely via a control terminal, to adjust the angle of the air guide vane and the fan speed. The air guide vane 4 is located inside the casing 1 and is adjusted to a specified angle according to the air guide vane angle adjustment signal. The indoor fan 5 is located inside the casing 1 and is adjusted to a specified fan speed according to the fan speed adjustment signal.

[0049] The controller 6 is configured to: collect the initial angle information of the air guide plate and the initial wind speed information of the indoor fan, calculate the initial air volume information based on the initial angle information and the initial wind speed information, and control the air volume of the air conditioner to the initial air volume based on the initial air volume information.

[0050] Specifically, the initial angle information of the air guide plate and the initial wind speed information of the indoor fan can be collected first.

[0051] A series of default operating parameters should be set. After the air conditioner 10 is turned on, if the user does not set any parameters, the air conditioner 10 will operate with the default operating parameters. For example, after the air conditioner 10 is turned on and running stably, the air guide plate 4 will open to the target angle and the indoor fan 5 will run at the target speed. At this time, the angle information of the air guide plate and the wind speed information of the indoor fan are the initial angle information and the wind speed information of the indoor fan are the initial wind speed information.

[0052] It is understandable that the airflow will be affected by the wind speed and the angle of the air guide plate 4. At different wind speeds, the airflow may vary when the air guide plate 4 is at different opening degrees. Before collecting the initial angle information of the air guide plate 4 and the initial wind speed information of the indoor fan 5, the controller 6 is specifically configured to: obtain the adjustable angle range of the air guide plate 4, divide the adjustable angle range into zones based on different wind speeds and determine the angle endpoint value of each zone, and determine the airflow endpoint value corresponding to each angle endpoint value at different wind speeds.

[0053] Specifically, as can be seen from the above, the adjustable angle range is [θ_up n, θ_down n], and for each operating setting of the indoor fan 5, there exists an optimal angle value θ_max for the air guide vane, which is typically located between θ_up n and θ_down n. Based on this, as... Figure 5 The diagram illustrates the airflow corresponding to different angles of the air guide plate according to an embodiment of the present invention. The adjustable angle range of the air guide plate 4 [θ_up n, θ_down n] can be divided into zones with θ_max as the center point. It is understood that the number of zones and the number of indoor fan speeds can be determined according to actual conditions. More zones result in more precise control and more complex design work; for example, the number of zones and the number of indoor fan speeds can be ≥3. After dividing the adjustable angle range [θ_up n, θ_down n] into zones, each zone will have two angle endpoint values, and the angle endpoint values ​​for each zone are determined. Furthermore, as shown in Table 1 above, when the angle of the air guide plate is at the optimal angle value θ_max, the air conditioner's capacity, energy efficiency, airflow, and outlet air temperature are all at their maximum. As the angle of the air guide plate changes upwards or downwards from θ_max, the airflow gradually decreases.

[0054] Specifically, the angle endpoint value and corresponding airflow endpoint value for each region in the embodiments of the present invention can be understood by referring to Table 2.

[0055] Table 2

[0056]

[0057] Table 2 shows that the adjustable angle range [θ_up n, θ_down n] can be divided into 7 regions. Each region corresponds to a set of angle endpoint values: (θ_up n, θ_1), (θ_1, θ_2), (θ_2, θ_3), (θ_3, θ_max), (θ_max, θ_4), (θ_4, θ_5), and (θ_5, θ_down n). Q represents the angle endpoint value and corresponding airflow endpoint value at different wind speeds. Taking the indoor fan 5 with 3 wind speed settings as an example—high speed, medium speed, and low speed—the corresponding airflow endpoint values ​​are represented by Q_h, Q_m, and Q_l, respectively. The airflow endpoint value corresponding to the angle endpoint value θ_max of the air guide plate is Q_max. There is a one-to-one correspondence between the airflow endpoint value and the angle endpoint value of each region. When the indoor fan 5 is set to high speed, the airflow endpoint values ​​corresponding to the angle endpoint values ​​of the above 7 regions are obtained. The set of airflow endpoint values ​​corresponding to each region is (Qh_up_n, Qh1), (Qh1, Qh2), (Qh2, Qh3), (Qh3, Qhmax), (Qhmax, Qh4), (Qh4, Qh5), and (Qh5, Qh_down_n). When the indoor fan 5 is set to medium speed, the 7 sets of airflow endpoint values ​​corresponding to the angle endpoint values ​​of the above 7 regions are (Qm_up_n, Qm1), (Qm1, Qm2), (Qm2, Qm3), (Qm3, Qmmax), (Qmmax, Qm4), (Qm4, Qm5), and (Qm5, Qm_down_n). Furthermore, when the indoor fan 5 is at a low speed, the seven sets of airflow endpoint values ​​corresponding to the angle endpoint values ​​of the aforementioned seven zones are (Ql_up, Ql1), (Ql1, Ql2), (Ql2, Ql3), (Ql3, Qlmax), (Qlmax, Ql4), (Ql4, Ql5), and (Ql5, Ql_down). Further, the adjustable angle range [θ_up, θ_down] of all the air guide plates 4, along with the angle endpoint values ​​and corresponding airflow endpoint values ​​after partitioning, can be pre-written into the E-parameter. Each time airflow information is calculated, the angle endpoint values ​​and corresponding airflow endpoint values ​​can be directly obtained from the E-parameter.

[0058] The optimal angle information, maximum air volume information, and maximum operating frequency information of the compressor for different wind speeds are obtained. Specifically, the optimal angle information of the air guide plate includes the optimal angle value θmax of the air guide plate at each operating speed of the indoor fan 5; the maximum air volume information includes the maximum air volume Qmax of the indoor fan 5 at each operating speed; and the maximum operating frequency information of the compressor, fmax, is determined by the E-square parameter when the angle of the air guide plate 4 is at the optimal angle value θmax and the wind speed of the indoor fan 5 is the maximum wind speed Qmax.

[0059] Furthermore, based on the initial wind speed information, the initial wind speed of the indoor fan 5 is determined, the first region where the initial angle information is located is determined, and the first set of angle endpoint values ​​of the first region is obtained. The first set of airflow endpoint values ​​corresponding to the first set of angle endpoint values ​​at the initial wind speed is then obtained. For example, based on the initial wind speed information, it is determined that the initial wind speed of the indoor fan 5 is at a high wind speed setting. The first region where the initial angle information is located is determined, for example, (θ2, θ3), and the first set of angle endpoint values ​​of the first region are obtained as θ2 and θ3. The first set of airflow endpoint values ​​corresponding to the first set of angle endpoint values ​​θ2 and θ3 at the high wind speed setting are Qh2 and Qh3.

[0060] Furthermore, the initial air volume information is calculated based on the first set of angle endpoint values ​​θ2, θ3 and the first set of air volume endpoint values ​​Qh2, Qh3, and the air volume of the air conditioner is controlled based on the initial air volume information to be the initial air volume.

[0061] Specifically, when calculating the initial airflow information based on the initial angle information and the initial wind speed information, the controller is specifically configured to: calculate the initial airflow information based on the initial airflow information, a set of angle endpoint values ​​of the region where the initial angle information of the air guide plate is located under different wind speeds, and a corresponding set of airflow endpoint values. The airflow information can be calculated using the formula Q=Q(n-1)-[Q(n-1)-Qn] / [θn-θ(n-1)]*(θ-θ(n-1)), where Q is the airflow information, θ is the angle information, θn and θ(n-1) are a set of angle endpoint values ​​of the region where the angle information of the air guide plate is located under different wind speeds, and Q(n-1) and Qn are a set of airflow endpoint values ​​corresponding to the set of angle endpoint values ​​of the region where the angle information of the air guide plate is located under different wind speeds. When calculating the initial air volume information based on the first set of angle endpoint values ​​θ2 and θ3 and the first set of air volume endpoint values ​​Qh2 and Qh3, the formula used is Qa=Qh2-[Qh2-Qh3] / [θ3-θ2]*(θa-θ2), where Qa is the initial air volume information and θa is the initial angle information.

[0062] In one embodiment, the system receives an air guide plate angle adjustment command and adjusts the air guide plate angle to a specified angle; or, it receives an air guide plate adjustment command and a wind speed adjustment command, adjusts the air guide plate angle to a specified angle, and adjusts the indoor fan speed to a specified wind speed.

[0063] It is understandable that during actual operation of the air conditioner, if the operating angle of the air guide vane 4 is θa, the corresponding compressor operating frequency is fa. If fa < fmax, it may affect user comfort, and the user needs to adjust the angle of the air guide vane 4. As shown in Table 1 above, for inverter air conditioners, when the air guide vane angle is at the optimal value θmax, the air conditioner's capacity, energy efficiency, airflow, and outlet temperature are all at their maximum. As the air guide vane angle changes upwards or downwards from θmax, the compressor operating frequency gradually decreases. Based on this, if... Figure 6 The diagram shows the operating frequency of the compressor when the air guide plate is at different angles according to an embodiment of the present invention. f represents the operating frequency of the compressor. When the user adjusts the angle of the air guide plate 4, the operating frequency of the compressor will also change.

[0064] Since the compressor's operating frequency is also related to airflow, and adjusting the angle of the air guide vane 4 and the airflow speed of the indoor fan 5 both affect airflow, after adjusting the angle of the air guide vane 4, or both the angle of the air guide vane 4 and the airflow speed of the indoor fan 5, the current angle information of the air guide vane and the current airflow speed information of the indoor fan can be obtained—that is, the adjusted angle information and airflow speed information. Based on the current angle information and current airflow speed information, the target airflow information is calculated, and the airflow of the air conditioner is controlled according to the target airflow information to achieve the target airflow. When calculating the target airflow, the formula for calculating the target airflow information described above can still be used.

[0065] Specifically, in the embodiment, when receiving the air guide plate angle adjustment command and adjusting the air guide plate angle to the specified angle, obtaining the current angle information of the air guide plate and the current wind speed information of the indoor fan, calculating the target air volume information based on the current angle information and the current wind speed information, and controlling the air volume of the air conditioner to the target air volume based on the target air volume information, the controller is specifically configured to: collect the current angle information and the initial wind speed information, wherein the initial wind speed information is the current wind speed information.

[0066] It is understandable that if only the air guide plate angle adjustment command is received, it means that the user has only adjusted the angle of the air guide plate 4, and the indoor fan 5 remains in the initial gear, and its wind speed information remains unchanged as the initial wind speed information.

[0067] Furthermore, based on the initial wind speed information, the initial wind speed of the indoor fan 5 is determined, the second region where the current angle information is located is determined, and the second set of angle endpoint values ​​of the second region is obtained. The second set of airflow endpoint values ​​corresponding to the second set of angle endpoint values ​​at the initial wind speed is also obtained. For example, if the initial wind speed of the indoor fan 5 is determined to be at a high wind speed setting based on the initial wind speed information, the second region where the initial angle information is located is determined, for example, (θ4, θ5), and the second set of angle endpoint values ​​of the second region are obtained as θ4 and θ5. The second set of airflow endpoint values ​​corresponding to the second set of angle endpoint values ​​θ4 and θ5 at the high wind speed setting are Qh4 and Qh3.

[0068] Furthermore, the first target air volume information is calculated based on the second set of angle endpoint values ​​θ4 and θ5 and the second set of air volume endpoint values ​​Qh4 and Qh3, and the air volume of the air conditioner is controlled to the first target air volume based on the first target air volume information.

[0069] Specifically, the air volume information can also be calculated using the formula Q=Q(n-1)-[Q(n-1)-Qn] / [θn-θ(n-1)]*(θ-θ(n-1)). When calculating the first target air volume information based on the second set of angle endpoint values ​​θ4 and θ5 and the second set of air volume endpoint values ​​Qh4 and Qh5, the formula used is Qb=Qh4-[Qh4-Qh5] / [θ5-θ4]*(θb-θ4), where Qb is the first target air volume information and θb is the current angle information.

[0070] Furthermore, in the embodiment, when receiving the air guide plate adjustment command and the wind speed adjustment command, adjusting the angle of the air guide plate to a specified angle and adjusting the wind speed of the indoor fan to a specified wind speed, acquiring the current angle information of the air guide plate and the current wind speed information of the indoor fan, calculating the target air volume information based on the current angle information and the current wind speed information, and controlling the air volume of the air conditioner to the target air volume based on the target air volume information, the controller is specifically configured to: collect the current angle information and the current wind speed information.

[0071] It is understandable that if the user receives both the air guide plate angle adjustment command and the wind speed adjustment command, it means that the user has adjusted both the air guide plate 4 angle and the wind speed. The indoor fan 5 will then operate at the adjusted speed, and both the wind speed of the indoor fan 5 and the angle of the air guide plate 4 will change.

[0072] Furthermore, based on the current wind speed information, the current wind speed of the indoor fan 5 is determined, the third region where the current angle information is located is determined, and the third set of angle endpoint values ​​of the third region is obtained. The third set of airflow endpoint values ​​corresponding to the third set of angle endpoint values ​​at the current wind speed is also obtained. For example, based on the current wind speed information, it is determined that the initial wind speed of the indoor fan 5 changes from a high wind speed setting to a low wind speed setting. The third region where the current angle information is located is determined, for example, (θ3, θmax). The third set of angle endpoint values ​​of the third region are obtained as θ3 and θmax. The third set of airflow endpoint values ​​corresponding to the third set of angle endpoint values ​​θ3 and θmax at the low wind speed setting are Ql3 and Qlmax.

[0073] Furthermore, the second target air volume information is calculated based on the third set of angle endpoint values ​​θ3 and θmax and the third set of air volume endpoint values ​​Ql3 and Qlmax, and the air volume of the air conditioner is controlled to the second target air volume based on the second target air volume information.

[0074] Specifically, the air volume information can also be calculated using the formula Q=Q(n-1)-[Q(n-1)-Qn] / [θn-θ(n-1)]*(θ-θ(n-1)). When calculating the second target air volume information based on the third set of angle endpoint values ​​θ3 and θmax and the third set of air volume endpoint values ​​Ql3 and Qlmax, the formula used is Qc=Ql3-[Ql3-Qlmax] / [θmax-θ3]*(θc-θ3), where Qc is the second target air volume information and θc is the current angle information.

[0075] In this embodiment, the initial air volume and the target air volume are compared and the comparison result is obtained. The target frequency information of the compressor is calculated based on the comparison result, and the compressor is controlled to operate at the target frequency based on the target frequency information.

[0076] If the user only adjusts the angle of the air guide plate 4, in this embodiment, the initial air volume and the target air volume are compared and the comparison result is obtained. The target frequency information of the compressor is calculated based on the comparison result. The compressor is then controlled to operate at the target frequency based on the target frequency information. Specifically, the controller is configured to: compare the initial air volume and the first target air volume, using Qa to represent the initial air volume and Qb to represent the first target air volume. If the initial air volume Qa is greater than the first target air volume Qb, the first target frequency information of the compressor is calculated according to the formula fb1=fa+[(Qa-Qb) / Qa]*[(fmax1-fa) / (Qmax1-Qa)]. The compressor is then controlled to operate at the first target frequency based on the first target frequency information. Wherein, the first target frequency information is fb1, fa is the initial operating frequency information, Qb is the first target air volume information, Qa is the initial air volume information, fmax1 is the maximum operating frequency information at the initial wind speed, and Qmax1 is the maximum air volume information at the initial wind speed.

[0077] Alternatively, if the initial air volume Qa is less than the first target air volume Q, the second target frequency information of the compressor is calculated according to the formula fb2=fa-[(Qb-Qa) / Qa]*[(fmax1-fa) / (Qmax1-Qa)], and the compressor is controlled to operate at the second target frequency according to the second target frequency information; where fb2 is the second target frequency information.

[0078] If the user adjusts both the angle of the air guide plate 4 and the wind speed, in this embodiment, the initial air volume and the target air volume are compared and the comparison result is obtained. The target frequency information of the compressor is calculated based on the comparison result. When the compressor is controlled to operate at the target frequency based on the target frequency information, the controller is specifically configured as follows: compare the initial air volume and the second target air volume, with Qa replacing the initial air volume and Qc replacing the second target air volume. If the initial air volume Qa is greater than the second target air volume Qc, the third target frequency information of the compressor is calculated according to the formula fc1=fa-[(Qa-Qc) / Qa]*[(fmax2-fa) / (Qmax2-Qa)]. The compressor is controlled to operate at the third target frequency based on the third target frequency information. Wherein, fc1 is the third target frequency information, fa is the initial operating frequency information, Qc is the second target air volume information, Qa is the initial air volume information, fmax2 is the maximum operating frequency information under the current wind speed, and Qmax2 is the maximum air volume information under the current wind speed.

[0079] Alternatively, if the initial air volume Qa is less than the second target air volume Qc, the fourth target frequency information of the compressor is calculated according to the formula fc2=fa+[(Qc-Qa) / Qa]*[(fmax2-fa) / (Qmax2-Qa)], and the compressor is controlled to operate at the fourth target frequency according to the fourth target frequency information; where fc2 is the fourth target frequency information.

[0080] According to the embodiment of the present invention, when the air conditioner 10 is running, if the user adjusts the angle of the air guide plate 4, or adjusts the angle of the air guide plate 4 and the wind speed of the indoor fan 5, the air conditioner 10 can automatically adjust the operating frequency of the compressor according to the adjusted angle of the air guide plate 4, or according to the adjusted angle of the air guide plate 4 and the adjusted wind speed. This allows the operating frequency of the compressor to be autonomously adjusted according to the angle of the air guide plate 4 and the wind speed, thereby achieving automatic adjustment of the output capacity of the air conditioner 10. This ensures that the air conditioner 10 can always operate in a high-efficiency state, avoiding problems such as excessive noise, vibration, abnormal sounds, and odors caused by changes in the angle of the air guide plate 4, and ensuring the user's experience.

[0081] To achieve the above objectives, the present invention also proposes a control method for an air conditioner, used in any of the above-described air conditioner 10, such as... Figure 7The diagram shows a flowchart of a control method for an air conditioner according to an embodiment of the present invention, wherein the control method includes the following steps S1-S4, as detailed below.

[0082] S1 collects the initial angle information of the air guide plate and the initial wind speed information of the indoor fan, calculates the initial air volume information based on the initial angle information and the initial wind speed information, and controls the air volume of the air conditioner to the initial air volume based on the initial air volume information.

[0083] In this embodiment, the initial angle information of the air guide plate and the initial wind speed information of the indoor fan are collected; the initial wind speed of the indoor fan is determined based on the initial wind speed information; the first region where the initial angle information is located is determined and the first set of angle endpoint values ​​of the first region are obtained; the first set of air volume endpoint values ​​corresponding to the first set of angle endpoint values ​​under the initial wind speed are obtained; the initial air volume information is calculated based on the first set of angle endpoint values ​​and the first set of air volume endpoint values; and the air volume of the air conditioner is controlled to be the initial air volume based on the initial air volume information.

[0084] S2, receives the air guide plate angle adjustment command and adjusts the air guide plate angle to the specified angle, or receives the air guide plate adjustment command and the wind speed adjustment command, adjusts the air guide plate angle to the specified angle and adjusts the indoor fan wind speed to the specified wind speed.

[0085] S3: Obtain the current angle information of the air guide plate and the current wind speed information of the indoor fan. Calculate the target air volume information based on the current angle information and the current wind speed information. Control the air volume of the air conditioner to the target air volume based on the target air volume information.

[0086] If only the angle of the air guide plate is adjusted, in this embodiment, the current angle information and the initial wind speed information are collected, wherein the initial wind speed information is the current wind speed information; the initial wind speed of the indoor fan is determined based on the initial wind speed information, the second region where the current angle information is located is determined and the second set of angle endpoint values ​​of the second region are obtained, and the second set of air volume endpoint values ​​corresponding to the second set of angle endpoint values ​​under the initial wind speed are obtained; the first target air volume information is calculated based on the second set of angle endpoint values ​​and the second set of air volume endpoint values, and the air volume of the air conditioner is controlled to be the first target air volume based on the first target air volume information.

[0087] Alternatively, if the angle of the air guide plate and the wind speed of the indoor fan are adjusted, in this embodiment, the current angle information and the current wind speed information are collected; the current wind speed of the indoor fan is determined based on the current wind speed information; the third region where the current angle information is located is determined and the third set of angle endpoint values ​​of the third region are obtained; the third set of air volume endpoint values ​​corresponding to the third set of angle endpoint values ​​under the current wind speed are obtained; the second target air volume information is calculated based on the third set of angle endpoint values ​​and the third set of air volume endpoint values; and the air volume of the air conditioner is controlled to be the second target air volume based on the second target air volume information.

[0088] S4 compares the initial air volume and the target air volume and obtains the comparison result. Based on the comparison result, it calculates the target frequency information of the compressor and controls the compressor to operate at the target frequency.

[0089] If only the angle of the air guide plate is adjusted, in this embodiment, the initial air volume and the first target air volume are compared. If the initial air volume is greater than the first target air volume, the first target frequency information of the compressor is calculated according to the formula fb1=fa+[(Qa-Qb) / Qa]*[(fmax1-fa) / (Qmax1-Qa)], and the compressor is controlled to operate at the first target frequency according to the first target frequency information; or, if the initial air volume is less than the first target air volume, the second target frequency information of the compressor is calculated according to the formula fb2=fa-[(Qb-Qa) / Qa]*[(fmax1-fa) / (Qmax1-Qa)], and the compressor is controlled to operate at the second target frequency according to the second target frequency information.

[0090] Alternatively, if the angle of the air guide vane and the speed of the indoor fan are adjusted, in this embodiment, the initial air volume and the second target air volume are compared. If the initial air volume is greater than the second target air volume, the third target frequency information of the compressor is calculated according to the formula fc1=fa-[(Qa-Qc) / Qa]*[(fmax2-fa) / (Qmax2-Qa)], and the compressor is controlled to operate at the third target frequency according to the third target frequency information; or, the initial air volume and the second target air volume are compared. If the initial air volume is less than the second target air volume, the fourth target frequency information of the compressor is calculated according to the formula fc2=fa+[(Qc-Qa) / Qa]*[(fmax2-fa) / (Qmax2-Qa)], and the compressor is controlled to operate at the fourth target frequency according to the fourth target frequency information.

[0091] The method for controlling the air conditioner according to the embodiments of the present invention can be understood by referring to the above embodiments, and will not be repeated here.

[0092] According to the air conditioner control method proposed in this embodiment, when the air conditioner is running, if the user adjusts the angle of the air guide vane, or adjusts the angle of the air guide vane and the air speed of the indoor fan, the air conditioner can automatically adjust the operating frequency of the compressor according to the adjusted angle of the air guide vane, or according to the adjusted angle of the air guide vane and the adjusted air speed. This allows the compressor's operating frequency to be autonomously adjusted according to the angle of the air guide vane and the air speed, thereby automatically adjusting the output capacity of the air conditioner. This ensures that the air conditioner can always operate in a high-efficiency state, avoiding problems such as excessive noise, vibration, abnormal sounds, and odors caused by changes in the angle of the air guide vane, and ensuring a good user experience.

[0093] In some embodiments of the present invention, such as Figure 8The diagram shows a flowchart of an air conditioner control method according to another embodiment of the present invention, wherein the air conditioner control method specifically includes steps S101-S115, as follows.

[0094] S101, the air conditioner is turned on and running.

[0095] S102 operates in cooling, dehumidifying, or heating mode.

[0096] S103, based on the current operating environment, obtain Qmax and fmax from the E-square parameters.

[0097] S104, obtain Qa and fa under the actual operating conditions, where Qa represents the initial air volume information and fa represents the initial operating frequency information of the compressor.

[0098] S105, determine whether to adjust the angle of the air guide plate. If the result is "yes", proceed to step S106. If the result is "no", proceed to step S107 to maintain the compressor's operating frequency at fa.

[0099] S106, determine whether to adjust the indoor fan speed. If the result is "no", proceed to step S108. If the result is "yes", proceed to step S112.

[0100] S108, obtain the current angle information θb and the first target air volume information Qb.

[0101] S109, determine whether Qa > Qb is satisfied. If the result is "yes", proceed to step S110. If the result is "no", proceed to step S111.

[0102] S110, calculate the first target frequency information fb1 of the compressor, and control the compressor to operate at fb1. The first target frequency information fb1 of the compressor can be calculated according to the formula fb1=fa+[(Qa-Qb) / Qa]*[(fmax1-fa) / (Qmax1-Qa)].

[0103] S111, calculate the second target frequency information fb2 of the compressor, and control the compressor to operate at fb2. Specifically, the second target frequency information fb2 of the compressor is calculated according to the formula fb2=fa-[(Qb-Qa) / Qa]*[(fmax1-fa) / (Qmax1-Qa)].

[0104] S112, obtain the current angle information θc and the second target air volume information Qc.

[0105] S113, determine whether Qa > Qc is satisfied. If the result is "yes", proceed to step S114. If the result is "no", proceed to step S115.

[0106] S114, calculate the third target frequency information fc1 of the compressor, and control the compressor to operate at fc1. Specifically, fc1 is calculated according to the formula fc1=fa-[(Qa-Qc) / Qa]*[(fmax2-fa) / (Qmax2-Qa)].

[0107] S115, calculate the fourth target frequency information fc2 of the compressor, and control the compressor to operate at fc2. Specifically, fc2 is calculated according to the formula fc2=fa+[(Qc-Qa) / Qa]*[(fmax2-fa) / (Qmax2-Qa)].

[0108] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are 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.

[0109] 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. An air conditioner, characterized in that, include: chassis; The refrigerant circulation loop is located inside the casing, allowing the refrigerant to circulate in the loop consisting of the compressor, condenser, expansion valve, evaporator, four-way valve, and pressure reducer. The instruction receiving module is used to output an air guide plate angle adjustment signal in response to an air guide plate angle adjustment command and to output a wind speed adjustment signal in response to a wind speed adjustment command. An air guide plate, located inside the housing, is used to adjust to a specified angle according to the air guide plate angle adjustment signal; An indoor fan, located inside the casing, is used to adjust the wind speed to a specified wind speed according to the wind speed adjustment signal; The controller is configured as follows: The initial angle information of the air guide plate and the initial wind speed information of the indoor fan are collected. The initial air volume information is calculated based on the initial angle information and the initial wind speed information. The air volume of the air conditioner is controlled to be the initial air volume based on the initial air volume information. The system receives the air guide plate angle adjustment command and adjusts the air guide plate angle to a specified angle; or, it receives the air guide plate adjustment command and the wind speed adjustment command, adjusts the air guide plate angle to a specified angle and adjusts the indoor fan wind speed to a specified wind speed. The current angle information of the air guide plate and the current wind speed information of the indoor fan are obtained. The target air volume information is calculated based on the current angle information and the current wind speed information. The air volume of the air conditioner is controlled to be the target air volume based on the target air volume information. The initial air volume and the target air volume are compared and the comparison result is obtained. The target frequency information of the compressor is calculated based on the comparison result. The compressor is controlled to operate at the target frequency based on the target frequency information. Before collecting the initial angle information of the air guide plate and the initial wind speed information of the indoor fan, the controller is specifically configured as follows: Obtain the adjustable angle range of the air guide plate, divide the adjustable angle range into regions based on different wind speeds and determine the angle endpoint value of each region, and determine the air volume endpoint value corresponding to each angle endpoint value under different wind speeds; Obtain the optimal angle information, maximum air volume information, and maximum operating frequency information of the air guide plate under different wind speeds; The controller is specifically configured to: collect the initial angle information of the air guide plate and the initial wind speed information of the indoor fan; calculate the initial air volume information based on the initial angle information and the initial wind speed information; and control the air volume of the air conditioner to the initial air volume based on the initial air volume information. Collect the initial angle information of the air guide plate and the initial wind speed information of the indoor fan; The initial wind speed of the indoor fan is determined based on the initial wind speed information, the first region where the initial angle information is located is determined and the first set of angle endpoint values ​​of the first region is obtained, and the first set of air volume endpoint values ​​corresponding to the first set of angle endpoint values ​​under the initial wind speed are obtained. The initial air volume information is calculated based on the first set of angle endpoint values ​​and the first set of air volume endpoint values, and the air volume of the air conditioner is controlled to the initial air volume based on the initial air volume information.

2. The air conditioner according to claim 1, characterized in that, Upon receiving the air guide plate angle adjustment command and adjusting the air guide plate angle to a specified angle, acquiring the current angle information of the air guide plate and the current wind speed information of the indoor fan, calculating the target air volume information based on the current angle information and the current wind speed information, and controlling the air volume of the air conditioner to the target air volume based on the target air volume information, the controller is specifically configured as follows: Collect the current angle information and the initial wind speed information, wherein the initial wind speed information is the current wind speed information; The initial wind speed of the indoor fan is determined based on the initial wind speed information. The second region where the current angle information is located is determined and the second set of angle endpoint values ​​of the second region are obtained. The second set of air volume endpoint values ​​corresponding to the second set of angle endpoint values ​​under the initial wind speed are obtained. The first target air volume information is calculated based on the second set of angle endpoint values ​​and the second set of air volume endpoint values, and the air volume of the air conditioner is controlled to be the first target air volume based on the first target air volume information.

3. The air conditioner according to claim 2, characterized in that, The controller is specifically configured to: compare the initial air volume and the target air volume and obtain the comparison result; calculate the target frequency information of the compressor based on the comparison result; and control the compressor to operate at the target frequency based on the target frequency information. Compare the initial air volume with the first target air volume. If the initial air volume is greater than the first target air volume, calculate the first target frequency information of the compressor according to the formula fb1=fa+[(Qa-Qb) / Qa]*[(fmax1-fa) / (Qmax1-Qa)], and control the compressor to operate at the first target frequency according to the first target frequency information. Compare the initial air volume with the first target air volume. If the initial air volume is less than the first target air volume, calculate the second target frequency information of the compressor according to the formula fb2=fa-[(Qb-Qa) / Qa]*[(fmax1-fa) / (Qmax1-Qa)], and control the compressor to operate at the second target frequency according to the second target frequency information. Wherein, fb1 is the first target frequency information, fb2 is the second target frequency information, fa is the initial operating frequency information, Qb is the first target air volume information, Qa is the initial air volume information, fmax1 is the maximum operating frequency information under the initial wind speed, and Qmax1 is the maximum air volume information under the initial wind speed.

4. The air conditioner according to claim 1, characterized in that, Upon receiving the air guide plate adjustment command and the wind speed adjustment command, adjusting the angle of the air guide plate to a specified angle and adjusting the wind speed of the indoor fan to a specified wind speed, acquiring the current angle information of the air guide plate and the current wind speed information of the indoor fan, calculating the target air volume information based on the current angle information and the current wind speed information, and controlling the air volume of the air conditioner to the target air volume based on the target air volume information, the controller is specifically configured as follows: Collect the current angle information and the current wind speed information; The current wind speed of the indoor fan is determined based on the current wind speed information, the third region where the current angle information is located is determined and the third set of angle endpoint values ​​of the third region are obtained, and the third set of air volume endpoint values ​​corresponding to the third set of angle endpoint values ​​under the current wind speed are obtained. The second target air volume information is calculated based on the third set of angle endpoint values ​​and the third set of air volume endpoint values, and the air volume of the air conditioner is controlled to be the second target air volume based on the second target air volume information.

5. The air conditioner according to claim 4, characterized in that, The controller is specifically configured to: compare the initial air volume and the target air volume and obtain the comparison result; calculate the target frequency information of the compressor based on the comparison result; and control the compressor to operate at the target frequency based on the target frequency information. Compare the initial air volume with the second target air volume. If the initial air volume is greater than the second target air volume, calculate the third target frequency information of the compressor according to the formula fc1=fa-[(Qa-Qc) / Qa]*[(fmax2-fa) / (Qmax2-Qa)], and control the compressor to operate at the third target frequency according to the third target frequency information. Compare the initial air volume with the second target air volume. If the initial air volume is less than the second target air volume, calculate the fourth target frequency information of the compressor according to the formula fc2=fa+[(Qc-Qa) / Qa]*[(fmax2-fa) / (Qmax2-Qa)], and control the compressor to operate at the fourth target frequency according to the fourth target frequency information. Wherein, fc1 is the third target frequency information, fc2 is the fourth target frequency information, fa is the initial operating frequency information, Qc is the second target air volume information, Qa is the initial air volume information, fmax2 is the maximum operating frequency information under the current wind speed, and Qmax2 is the maximum air volume information under the current wind speed.

6. The air conditioner according to any one of claims 1-5, characterized in that, When calculating initial airflow information based on the initial angle information and the initial wind speed information, or calculating target airflow information based on the current angle information and the current wind speed information, the controller is specifically configured as follows: The air volume information is calculated based on the initial air volume information, a set of angle endpoint values ​​of the region where the air guide plate is located under different wind speeds, and a corresponding set of air volume endpoint values.

7. The air conditioner according to claim 6, characterized in that, When calculating the airflow information based on the initial airflow information, a set of angle endpoint values ​​and a corresponding set of airflow endpoint values ​​in the region where the air guide plate is located at different wind speeds, the controller is specifically configured as follows: The airflow information is calculated using the formula Q=Q(n-1)-[Q(n-1)-Qn] / [θn-θ(n-1)]*(θ-θ(n-1)), where Q is the airflow information, θ is the angle information, θn and θ(n-1) are a set of angle endpoint values ​​of the region where the angle information of the air guide plate is located under different wind speeds, and Q(n-1) and Qn are a set of airflow endpoint values ​​corresponding to a set of angle endpoint values ​​of the region where the angle information of the air guide plate is located under different wind speeds.

8. A control method for an air conditioner, characterized in that, For an air conditioner as described in any one of claims 1-7, the control method includes the following steps: The initial angle information of the air guide plate and the initial wind speed information of the indoor fan are collected. The initial air volume information is calculated based on the initial angle information and the initial wind speed information. The air volume of the air conditioner is controlled to be the initial air volume based on the initial air volume information. The system receives an air guide plate angle adjustment command and adjusts the air guide plate angle to a specified angle; or, it receives both the air guide plate adjustment command and the wind speed adjustment command and adjusts the air guide plate angle to a specified angle and the indoor fan wind speed to a specified wind speed. The current angle information of the air guide plate and the current wind speed information of the indoor fan are obtained. The target air volume information is calculated based on the current angle information and the current wind speed information. The air volume of the air conditioner is controlled to be the target air volume based on the target air volume information. The initial air volume and the target air volume are compared and a comparison result is obtained. The target frequency information of the compressor is calculated based on the comparison result, and the compressor is controlled to operate at the target frequency based on the target frequency information.

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