Air conditioner, control method thereof, and computer readable storage medium

Abstract

The application discloses a control method of an air conditioner, which comprises the following steps: in a cold-wind prevention stage of the air conditioner in a heating operation, a deflector of an air outlet of the air conditioner is controlled to switch from a first deflection angle to a second deflection angle; the deflector shields the air outlet at the first deflection angle, and the deflector opens the air outlet at the second deflection angle; in the process of the deflector operating at the second deflection angle, a first temperature of an indoor heat exchanger of the air conditioner is acquired; and the indoor fan of the air conditioner is controlled to operate at a higher rotating speed according to the first temperature. The application also discloses an air conditioner and a computer readable storage medium. The application aims to quickly increase the air outlet temperature in the cold-wind prevention stage of the air conditioner, and meet the comfort of users.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and in particular to a control method of an air conditioner, the air conditioner and a computer readable storage medium. BACKGROUND

[0002] With the development of economy and technology, air conditioners are applied more and more widely. At present, many air conditioners have a cold wind prevention function. In the cold wind prevention stage when the air conditioner is heating, the air deflector is switched from the cold wind prevention angle to the heating angle to open the air outlet only when the indoor coil temperature is high enough.

[0003] However, after the air deflector is switched to the heating angle, the indoor fan is generally directly raised to the rotation speed set by the user, and the rotation speed of the indoor fan is not reasonably adjusted, which may cause the air outlet temperature to rise slowly and affect the user comfort. SUMMARY

[0004] The main purpose of the present application is to provide a control method of an air conditioner, the air conditioner and a computer readable storage medium, which can quickly increase the air outlet temperature in the cold wind prevention stage of the air conditioner and meet the user comfort.

[0005] To achieve the above purpose, the present application provides a control method of an air conditioner, which comprises the following steps:

[0006] In the cold wind prevention stage of the air conditioner heating operation, the air deflector of the air outlet of the air conditioner is switched from a first air deflection angle to a second air deflection angle; the air deflector blocks the air outlet at the first air deflection angle, and the air deflector opens the air outlet at the second air deflection angle;

[0007] During the operation of the air deflector at the second air deflection angle, the first temperature of the indoor heat exchanger of the air conditioner is obtained;

[0008] According to the first temperature, the rotation speed of the indoor fan of the air conditioner is increased.

[0009] Optionally, the control method of the air conditioner further comprises:

[0010] When the air conditioner enters the cold wind prevention stage, the second temperature of the indoor heat exchanger at present is obtained;

[0011] If the second temperature is less than or equal to the first target heat exchanger temperature, the indoor fan of the air conditioner is controlled to operate at a target rotation speed, and the step of controlling the air deflector of the air outlet of the air conditioner to switch from the first air deflection angle to the second air deflection angle is executed;

[0012] The indoor fan has at least two rotating speed gears, and the target rotating speed is located in the lowest gear of the at least two rotating speed gears.

[0013] Optionally, after the step of obtaining the current second temperature of the indoor heat exchanger, the method further comprises:

[0014] If the second temperature is less than or equal to the first target heat exchanger temperature, obtaining a duration of the heating operation of the air conditioner;

[0015] When the duration is greater than or equal to a target duration, performing the step of controlling the indoor fan of the air conditioner to operate at a target rotating speed;

[0016] The indoor fan is in a closed state when entering the cold wind prevention stage, and the target duration is determined according to an initial environment temperature, and the initial environment temperature is an indoor environment temperature when the air conditioner starts the heating operation.

[0017] Optionally, the first target heat exchanger temperature is determined according to an initial environment temperature; and the initial environment temperature is an indoor environment temperature when the air conditioner starts the heating operation.

[0018] Optionally, the step of controlling the indoor fan of the air conditioner to operate at an increased rotating speed according to the first temperature comprises:

[0019] Obtaining a current rotating speed of the indoor fan and an initial environment temperature; the initial environment temperature is an indoor environment temperature when the air conditioner starts the heating operation;

[0020] Determining a second target heat exchanger temperature according to the current rotating speed of the indoor fan and the initial environment temperature;

[0021] When the first temperature is greater than or equal to the second target heat exchanger temperature, controlling the indoor fan to operate at an increased rotating speed.

[0022] Optionally, the step of determining the second target heat exchanger temperature according to the current rotating speed of the indoor fan and the initial environment temperature comprises:

[0023] Obtaining a reference heat exchanger temperature corresponding to the current rotating speed of the indoor fan, and determining a temperature correction parameter according to the initial environment temperature; the reference heat exchanger temperature is a minimum temperature required by the indoor heat exchanger when the indoor fan operates at the current rotating speed;

[0024] Correcting the reference heat exchanger temperature according to the temperature correction parameter to obtain the second target heat exchanger temperature.

[0025] Optionally, after the step of controlling the indoor fan to operate at an increased rotating speed, the method further comprises:

[0026] If the step of obtaining the first temperature of the indoor heat exchanger of the air conditioner is performed during the step of switching the air deflector of the air outlet of the air conditioner from the first air deflection angle to the second air deflection angle, the step of obtaining the first temperature of the indoor heat exchanger of the air conditioner is performed until the rotation speed of the indoor fan is greater than or equal to the target rotation speed value.

[0027] Optionally, the step of controlling the air deflector of the air outlet of the air conditioner to switch from the first air deflection angle to the second air deflection angle includes:

[0028] obtaining the indoor ambient temperature;

[0029] determining the movement rate of the air deflector according to the indoor ambient temperature;

[0030] controlling the air deflector to switch from the first air deflection angle to the second air deflection angle at the movement rate.

[0031] Optionally, the step of determining the movement rate of the air deflector according to the indoor ambient temperature includes:

[0032] determining a target time length corresponding to the indoor ambient temperature; the target time length is the required time length for the air deflector to switch from the first air deflection angle to the second air deflection angle;

[0033] determining the movement rate according to a target angle value and the target time length;

[0034] wherein the target angle value is the angle difference between the first air deflection angle and the second air deflection angle.

[0035] Optionally, the air outlet is provided with two air deflectors, which are defined as a first air deflector and a second air deflector, respectively; the first air deflector is movably arranged on the upper side of the air outlet, and the second air deflector is movably arranged on the lower side of the air outlet.

[0036] the first air deflection angle corresponding to the first air deflector is defined as a first angle, and the first air deflection angle corresponding to the second air deflector is defined as a second angle; under the cooperation of the first angle and the second angle, the first air deflector blocks the upper region of the air outlet, and the airflow of the air duct of the air conditioner blows out from the lower region of the air outlet and enters the indoor environment upward after being guided by the second air deflector;

[0037] the second air deflection angle corresponding to the first air deflector is defined as a third angle, and the second air deflection angle corresponding to the second air deflector is defined as a fourth angle; under the cooperation of the third angle and the fourth angle, the first air deflector opens the upper region, and the airflow in the air duct enters the indoor environment downward after being guided by the cooperation of the first air deflector and the second air deflector.

[0038] Optionally, before the step of controlling the air deflector of the air conditioner to switch from the first air deflection angle to the second air deflection angle, the method further comprises the steps that:

[0039] The air conditioner enters the cold air prevention stage when being powered on and starting heating operation; or

[0040] The air conditioner enters the cold air prevention stage when starting heating operation after defrosting is completed; or

[0041] The air conditioner enters the cold air prevention stage when restarting the compressor under heating operation.

[0042] In addition, in order to achieve the above object, the present application further provides an air conditioner, which comprises:

[0043] An indoor fan;

[0044] An air deflector arranged at an air outlet of the air conditioner;

[0045] A control device, the indoor fan and the air deflector are connected with the control device, the control device comprises a memory, a processor and an air conditioner control program stored in the memory and executable on the processor, and the air conditioner control program is executed by the processor to realize the steps of the air conditioner control method according to any one of the above.

[0046] In addition, in order to achieve the above object, the present application further provides a computer readable storage medium, which stores an air conditioner control program, and the air conditioner control program is executed by a processor to realize the steps of the air conditioner control method according to any one of the above.

[0047] The air conditioner control method provided by the present application, after the air deflector is switched from the cold air prevention angle of shielding the air outlet to the heating angle of opening the air outlet, the indoor fan speed is no longer directly increased to the user set speed, but is adapted to the indoor heat exchanger temperature to control the indoor fan speed increasing process, so as to realize the reasonable adjustment of the indoor fan speed under the heating angle of the air conditioner, avoid the excessive speed affecting the increase of the outlet air temperature, realize the rapid increase of the outlet air temperature in the cold air prevention stage of the air conditioner, and meet the user comfort. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 It is an air outlet structure schematic diagram of an embodiment of the air conditioner of the present application;

[0049] Figure 2 It is a hardware structure schematic diagram related to the operation of an embodiment of the air conditioner of the present application;

[0050] Figure 3 It is a flow schematic diagram of an embodiment of the air conditioner control method of the present application;

[0051] Figure 4 Flowchart of another embodiment of the control method of the air conditioner of the present application;

[0052] Figure 5 Flowchart of still another embodiment of the control method of the air conditioner of the present application;

[0053] Figure 6 Flowchart of still another embodiment of the control method of the air conditioner of the present application.

[0054] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0055] It should be understood that the specific embodiments described herein are merely intended to explain the present application and not to limit the present application.

[0056] The main solution of the embodiments of the present application is that, in the cold wind prevention stage of the heating operation of the air conditioner, the air deflector of the air outlet of the air conditioner is controlled to switch from a first air deflection angle to a second air deflection angle; in the process of the air deflector operating at the second air deflection angle, the first temperature of the indoor heat exchanger of the air conditioner is obtained; and the indoor fan of the air conditioner is controlled to operate at a higher speed according to the first temperature; wherein the air deflector blocks the air outlet at the first air deflection angle, and the air deflector opens the air outlet at the second air deflection angle.

[0057] In the prior art, after the air deflector switches to the heating angle, the indoor fan generally directly operates at the speed set by the user, and the speed of the indoor fan is not reasonably adjusted, which may cause the air outlet temperature to increase slowly and affect the user comfort.

[0058] The present application provides the above-mentioned solution, which aims to quickly increase the air outlet temperature in the cold wind prevention stage of the air conditioner and meet the user comfort.

[0059] The embodiments of the present application provide an air conditioner. In the embodiments of the present application, the air conditioner is a wall-mounted air conditioner. In other embodiments, the air conditioner can also be a cabinet air conditioner, a ceiling-mounted air conditioner, a mobile air conditioner, a window air conditioner, etc. according to actual needs.

[0060] In the embodiments, referring to Figure 1 , the air conditioner comprises a shell 1, the shell 1 is provided with an air outlet 01, and the air outlet 01 is provided with an air deflector 2.

[0061] Specifically, the air deflector 2 is movably arranged at the air outlet 01 and has different air deflection positions. For example, the air deflector 2 is rotatably or slidably arranged at the air outlet 01. When the air deflector 2 is at different air deflection positions, the air outlet 01 has different air outlet directions and / or air outlet amounts.

[0062] The number of the air deflectors 2 can be set according to actual needs. In the embodiment, the number of the air deflectors 2 is two; in other embodiments, the number of the air deflectors 2 can also be one or more than two.

[0063] Specifically, the shell 1 is provided with an air duct in communication with the air outlet 01, and the air duct is provided with an indoor heat exchanger and an indoor fan 3. Under the drive of the indoor fan 3, indoor air enters the air duct and is heat-exchanged by the indoor heat exchanger, and the heat-exchanged air is sent into the indoor environment from the air outlet 01.

[0064] Specifically, in the embodiment, the air outlet 01 is provided with more than one air deflector 2, which are defined as a first air deflector 21 and a second air deflector 22. The first air deflector 21 is rotatably arranged at the upper side of the air outlet 01, and the second air deflector 22 is rotatably arranged at the lower side of the air outlet 01.

[0065] The area of the board surface of the first air deflector 21 is smaller than that of the second air deflector 22. When the second air deflector 22 closes or partially blocks the air outlet 01, the first air deflector 21 is located inside the second air deflector 22. When the second air deflector 22 is located inside the first air deflector 21, it can adjust the airflow direction or air volume in the air duct blowing towards the first air deflector 21; when the first air deflector 21 opens the air outlet 01, the second air deflector 22 can adjust the air outlet direction of the air outlet 01.

[0066] Further, the air conditioner can also include a temperature detection module 4, which includes a first temperature sensor and a second temperature sensor. The first temperature sensor is used to detect the indoor environment temperature. In the embodiment, the first temperature sensor is arranged at the air return port of the air duct. In other embodiments, the first temperature sensor can also be arranged at the indoor environment where the air conditioner acts. The second temperature sensor is used to detect the indoor heat exchanger temperature. In the embodiment, the second temperature sensor is arranged at the middle part of the coil of the indoor heat exchanger; in other embodiments, the second temperature sensor can also be arranged at the outlet of the indoor heat exchanger coil or the outlet, and even can be arranged at the inner wall of the air duct close to the indoor heat exchanger.

[0067] Further, the air conditioner can also include a control device, which is described with reference to Figure 2 The above-mentioned air deflector 2, indoor fan 3, temperature detection module 4 are all connected with the control device here. The control device can control the operation of the air deflector 2 and the indoor fan 3, and can also obtain the temperature data detected by the temperature detection module 4.

[0068] The control device includes a processor 1001 (e.g., CPU), a memory 1002, and a timer 1003. The processor 1001 is connected to the memory 1002 and the timer 1003 via a communication bus. The memory 1002 can be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0069] Those skilled in the art will understand that Figure 2 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0070] like Figure 2 As shown, the memory 1002, which is a computer-readable storage medium, may include a control program for an air conditioner. Figure 2 In the device shown, the processor 1001 can be used to call the control program of the air conditioner stored in the memory 1002 and execute the relevant steps of the control method of the air conditioner in the following embodiments.

[0071] This invention also provides a control method for an air conditioner, which is used to adjust the air conditioner described above.

[0072] Reference Figure 3 This application proposes an embodiment of a control method for an air conditioner. In this embodiment, the control method for the air conditioner includes:

[0073] Step S10: During the anti-cold wind stage of the air conditioner's heating operation, the air guide plate of the air outlet of the air conditioner is controlled to switch from the first air guide angle to the second air guide angle; at the first air guide angle, the air guide plate blocks the air outlet, and at the second air guide angle, the air guide plate opens the air outlet.

[0074] The anti-cold-wind stage during heating operation can be a stage where the air conditioner runs for a duration less than or equal to the set duration after starting heating, or a stage where the detected indoor heat exchanger temperature or outlet air temperature is less than or equal to the set temperature threshold after the air conditioner starts heating. Specifically, the anti-cold-wind stage is entered when the air conditioner is powered on and starts heating operation; or when the air conditioner starts heating operation after defrosting; or when the compressor is restarted during heating operation.

[0075] The air deflector can close the air outlet or shield part of the air outlet at the first air deflection angle. The angle between the airflow in the air duct and the air deflector is greater than a set angle threshold (e.g., 30 degrees). The plane where the air outlet is located is defined as a reference plane. The first air deflection angle is the angle between the air deflector and the reference plane when the air deflector is at the first air deflection position. The first air deflection angle is less than the set angle. Specifically, in an embodiment, the number of air deflectors is one, and the air deflector is arranged to rotate at the lower side of the air outlet. At the first air deflection angle, the air deflector forms a gap with the upper edge of the air outlet, and the internal airflow of the air conditioner is sent upward from the gap to the indoor under the guidance of the air deflector. At this time, the user in the space below can move without being blown by the air outlet of the air conditioner, and the air conditioner can adjust the indoor air temperature. In another embodiment, the number of air deflectors can also be more than one, and the angle between each air deflector and the reference plane is less than the set angle.

[0076] The air deflector opens the air outlet at the second air deflection angle. The angle between the airflow in the air duct and the air deflector is less than the set angle threshold. Specifically, in the present embodiment, the air outlet direction of the air outlet is parallel to the surface of the air deflector at the second air deflection angle, and the air outlet in the air duct blows directly into the indoor. The plane where the air outlet is located is defined as a reference plane. The second air deflection angle is the angle between the air deflector and the reference plane when the air deflector is at the second air deflection position. The second air deflection angle is greater than the set angle.

[0077] The first air deflection angle and the second air deflection angle can be pre-set angles or angles determined according to the actual operation of the air conditioner. Specifically, the second air deflection angle can be determined according to the indoor environment temperature obtained above. The larger the indoor environment temperature, the larger the air outlet area of the air outlet corresponding to the second air deflection angle, and the more air is sent to the lower space by the air conditioner.

[0078] The air deflector switches from the first air deflection angle to the second air deflection angle, the air outlet area of the air outlet increases, and the air outlet direction of the air outlet switches from a direction that does not blow to the user to a direction that can blow to the user.

[0079] Specifically, the air deflector can switch from the first air deflection angle to the second air deflection angle at a pre-set fixed movement rate or a movement rate determined according to the actual operation of the air conditioner.

[0080] In the present embodiment, when the air deflector is arranged to rotate at the lower side of the air outlet, the air outlet direction changes from upward, horizontal, and downward in sequence during the process of the air deflector switching from the first air deflection angle to the second air deflection angle.

[0081] In step S20, a first temperature of the indoor heat exchanger of the air conditioner is obtained during the operation of the air deflector at the second air deflection angle.

[0082] The temperature data detected by the temperature sensor arranged on the indoor heat exchanger is read in real time or at intervals for a set time length when the air deflector is at the second air deflection angle to obtain a first temperature here.

[0083] In step S30, the indoor fan of the air conditioner is controlled to operate at a higher speed according to the first temperature.

[0084] Different first temperatures correspond to different speed control parameters of the indoor fan. The speed of the indoor fan increases with the increase of the first temperature. Specifically, the indoor fan can be controlled to operate at a higher speed according to the change parameter of the first temperature, for example, when the change rate or the rising amplitude of the first temperature reaches a set threshold, the indoor fan is controlled to operate at a higher speed; or, the speed adjustment parameter (such as the speed increase amplitude or the speed increase rate) of the indoor fan can be determined according to the interval of the first temperature, and the indoor fan is controlled to operate at a higher speed according to the determined speed adjustment parameter; or, the target speed of the indoor fan corresponding to the first temperature is determined, and the indoor fan is controlled to operate at the target speed, and the like.

[0085] The control method of the air conditioner provided in the embodiment of the application is that after the air deflector is switched from the cold-proof angle of blocking the air outlet to the heating angle of opening the air outlet, the speed of the indoor fan is no longer directly increased to the speed set by the user, but is controlled according to the temperature of the indoor heat exchanger, so that the speed of the indoor fan is reasonably adjusted in the heating angle of the air conditioner, the speed is prevented from being too large to affect the increase of the outlet air temperature, the outlet air temperature is quickly increased in the cold-proof stage of the air conditioner, and the comfort of the user is met.

[0086] Further, based on the above embodiment, another embodiment of the control method of the air conditioner is provided. In the embodiment, referring to Figure 4 , the control method of the air conditioner further comprises:

[0087] In step S101, when the air conditioner enters the cold-proof stage, the second temperature of the indoor heat exchanger is obtained.

[0088] Specifically, after the air conditioner enters the cold-proof stage, the temperature data detected by the temperature sensor arranged on the indoor heat exchanger can be read in real time or at intervals for a set time length as the second temperature here.

[0089] In step S102, if the second temperature is less than or equal to the first target heat exchanger temperature, the indoor fan of the air conditioner is controlled to operate at a target speed, and the step of controlling the air deflector of the air outlet of the air conditioner to switch from the first air deflection angle to the second air deflection angle is executed.

[0090] The indoor fan has at least two speed gears, and the target speed is located in the lowest gear of the at least two speed gears.

[0091] The first target heat exchanger temperature can be a preset temperature or a temperature determined according to an actual operating condition of the air conditioner.

[0092] In this embodiment, the first target heat exchanger temperature is determined according to an initial environment temperature, which is an indoor environment temperature when the air conditioner starts heating operation. Specifically, a temperature correction parameter can be determined according to the initial environment temperature, a minimum temperature required to be reached by the indoor heat exchanger is obtained according to the target rotating speed, and the first target heat exchanger temperature is obtained by correcting the obtained minimum temperature according to the temperature correction parameter. Based on this, the accuracy of the control of the deflector and the indoor fan in the cold-blast prevention stage can be ensured, the cold-blast prevention and the improvement of the heating efficiency of the air conditioner can be effectively realized, and the indoor user comfort can be improved.

[0093] The target rotating speed can be a preset rotating speed or a rotating speed determined according to an actual operating condition of the air conditioner, for example, a rotating speed value of the lowest rotating speed gear of the indoor fan according to the indoor environment temperature as the target rotating speed.

[0094] When the current temperature of the indoor heat exchanger is less than or equal to the first target heat exchanger temperature, it indicates that the air outlet temperature of the air conditioner is low. At this time, the indoor fan runs at the lowest rotating speed while the air outlet is opened by switching the deflector from the first deflection angle to the second deflection angle, which can ensure the temperature rising efficiency of the indoor heat exchanger and avoid a large amount of cold air with low temperature from blowing to the user, so that the air conditioner can send a small amount of heat to heat the indoor environment and ensure the user comfort.

[0095] Further, in this embodiment, after step S101, the method further includes: if the second temperature is less than or equal to the first target heat exchanger temperature, obtaining a duration of the heating operation of the air conditioner; when the duration is greater than or equal to a target duration, performing the step of controlling the indoor fan of the air conditioner to run at the target rotating speed; wherein the indoor fan is in a closed state when entering the cold-blast prevention stage, and the target duration is determined according to an initial environment temperature, which is an indoor environment temperature when the air conditioner starts heating operation.

[0096] When the duration is less than the target duration, the indoor fan can be controlled to be closed.

[0097] Specifically, the initial environment temperature can be the indoor environment temperature detected when the air conditioner is powered on and starts heating operation; the initial environment temperature can also be the indoor environment temperature detected when the air conditioner starts heating operation after ending the defrosting mode; and the initial environment temperature can also be the indoor environment temperature detected when the air conditioner restarts the compressor after temperature stop or protection stop during the heating operation.

[0098] Different initial ambient temperatures correspond to different target durations, and the lower the initial ambient temperature, the longer the target duration can be.

[0099] After the indoor fan is turned on, the air deflector is controlled to open from the first air deflection angle to the second air deflection angle. In addition, when the second temperature is less than or equal to the first target heat exchanger temperature, the air deflector can also be controlled to switch from the first air deflection angle to the second air deflection angle, and the above-mentioned duration is obtained during the switching process. When the duration is greater than or equal to the target duration, the step of turning on the indoor fan to run at the target rotating speed is performed again.

[0100] In this embodiment, when the indoor heat exchanger temperature is low in the initial stage of heating and cold wind prevention, the indoor fan is maintained closed for more than the target duration before being turned on, which is beneficial to quickly increase the air outlet temperature of the air conditioner while avoiding cold wind blowing, and improves user comfort.

[0101] Further, based on any of the above embodiments, another embodiment of the control method of the air conditioner is provided. In this embodiment, referring to Figure 5 , the step of controlling the indoor fan of the air conditioner to run at an increased rotating speed according to the first temperature comprises:

[0102] Step S31, obtaining the current rotating speed of the indoor fan and the initial ambient temperature; the initial ambient temperature is the indoor ambient temperature when the air conditioner starts heating operation;

[0103] Specifically, the indoor ambient temperature detected when the air conditioner is powered on and starts heating operation can be used as the initial ambient temperature here; the indoor ambient temperature detected when the air conditioner starts heating operation after ending the defrosting mode can also be used as the initial ambient temperature here; and the indoor ambient temperature detected when the air conditioner restarts the compressor after reaching the temperature stop or protection stop during heating operation can also be used as the initial ambient temperature here.

[0104] Step S32, determining a second target heat exchanger temperature according to the current rotating speed of the indoor fan and the initial ambient temperature;

[0105] The second target heat exchanger temperature is specifically the lowest temperature required by the heat exchanger when the indoor fan runs at the current rotating speed during the rising process of the air conditioner heat exchanger temperature, which can be used to distinguish whether the air conditioner heat exchanger temperature can reach above the preset heat exchanger temperature (less than the target heat exchanger temperature) after the indoor fan increases the rotating speed, so as to improve the heating efficiency while avoiding cold wind blowing.

[0106] Different current rotating speeds of the indoor fan and different initial ambient temperatures correspond to different second target heat exchanger temperatures.

[0107] Specifically, a corresponding relationship between the rotation speed, the ambient temperature and the heat exchanger temperature can be established in advance. The corresponding relationship can be in the form of a mapping relationship, a calculation relationship, etc. The heat exchanger temperature obtained by substituting the current rotation speed and the ambient temperature of the indoor fan into the corresponding relationship can be used as the second target heat exchanger temperature.

[0108] In the corresponding relationship, the heat exchanger temperature increases with the increase of the rotation speed, and the heat exchanger temperature decreases with the increase of the ambient temperature.

[0109] In step S33, when the first temperature is greater than or equal to the second target heat exchanger temperature, the indoor fan is controlled to operate at a higher rotation speed.

[0110] The indoor fan can operate at a higher rotation speed according to the pre-set rotation speed adjustment parameter, or the indoor fan can operate at a higher rotation speed according to the rotation speed adjustment parameter determined according to the actual operation condition of the air conditioner. For example, the rotation speed increase amplitude can be determined according to the temperature difference between the first temperature and the second target heat exchanger temperature, and the indoor fan can be controlled to operate at a higher rotation speed according to the rotation speed increase amplitude.

[0111] In this embodiment, during the process of increasing the rotation speed of the indoor fan based on the indoor heat exchanger temperature, the actual thermal sensation of the user under the current air outlet of the air conditioner can be accurately represented in combination with the indoor ambient temperature and the current rotation speed of the fan. Based on this, the target heat exchanger temperature is determined in combination with the indoor ambient temperature and the current rotation speed of the fan, and the rotation speed of the indoor fan is further increased only when the actual temperature of the indoor heat exchanger reaches above the determined target heat exchanger temperature, thereby preventing the user from feeling cold due to the difference between the user's body surface temperature and the air outlet temperature of the air conditioner during the anti-cold wind control of the air conditioner, further improving the accuracy of the anti-cold wind control of the air conditioner, ensuring to prevent cold wind blowing on the user while improving the heating efficiency of the air conditioner, and further improving the user comfort.

[0112] Specifically, in this embodiment, the step of determining the second target heat exchanger temperature according to the current rotation speed of the indoor fan and the initial ambient temperature comprises: obtaining a reference heat exchanger temperature corresponding to the current rotation speed of the indoor fan, and determining a temperature correction parameter according to the initial ambient temperature; the reference heat exchanger temperature is the minimum temperature required by the indoor heat exchanger when the indoor fan operates at the current rotation speed; the reference heat exchanger temperature is corrected according to the temperature correction parameter to obtain the second target heat exchanger temperature.

[0113] The current speed of the indoor fan is different, and the corresponding reference heat exchanger temperature is different. Specifically, the greater the current speed, the greater the reference heat exchanger temperature. The speed-temperature corresponding relationship between the current speed of the indoor fan and the reference heat exchanger temperature can be pre-set, which can be a calculation relationship, a mapping relationship, etc. Based on the corresponding relationship between the speed and the temperature, the reference heat exchanger temperature corresponding to the current speed can be determined. The second target heat exchanger temperature is less than the reference heat exchanger temperature here.

[0114] Specifically, in the embodiment, different indoor fan speeds correspond to different heat exchanger temperature intervals, and the greater the speed, the greater the temperature in the heat exchanger temperature interval. Based on this, the heat exchanger temperature interval corresponding to the current indoor fan speed can be determined, and the minimum critical temperature of the determined heat exchanger temperature interval is taken as the second target heat exchanger temperature here. The maximum critical value of the heat exchanger temperature interval here is specifically determined according to the target speed value required to be reached after the subsequent speed increase of the indoor fan. The specific maximum critical value is the reference heat exchanger temperature corresponding to the target speed value.

[0115] The temperature correction parameter is specifically used to characterize the difference between the apparent temperature and the heat exchanger temperature of the air conditioner during the heating process. The temperature correction parameter can include a temperature correction amplitude or a temperature correction ratio, etc. The temperature correction parameter corresponding to different indoor environment temperatures has different values, and the greater the indoor environment temperature, the smaller the second target heat exchanger temperature corresponding to the temperature correction parameter. For example, when the temperature correction parameter is the temperature correction amplitude, the greater the indoor environment temperature, the greater the temperature correction amplitude can be, so that the second target heat exchanger temperature corresponding to it is smaller. The corresponding relationship between the indoor environment temperature and the temperature correction parameter can be pre-set, which can be a mapping relationship, a calculation relationship, etc. Based on the corresponding relationship, the temperature correction parameter corresponding to the current indoor environment temperature can be determined. Specifically, a plurality of preset environment temperatures can be pre-set, and the corresponding temperature correction parameter can be determined according to the quantity relationship between the indoor environment temperature and the plurality of preset environment temperatures.

[0116] In the embodiment, the temperature correction parameter is the temperature correction amplitude, and the temperature correction parameter is defined as ΔT, and the reference heat exchanger temperature is T T2 , then the second target heat exchanger temperature T T2K = T T2 - ΔT. In other embodiments, the temperature correction parameter is the temperature correction ratio, and the temperature correction parameter is defined as p (less than 1), then the second target heat exchanger temperature T T2K = T T2 * p.

[0117] In the embodiment, the minimum temperature of the indoor heat exchanger corresponding to the current rotating speed is corrected in combination with the indoor environment temperature. The indoor environment temperature can represent the user's body feeling. Based on this, the cold wind prevention control of the air conditioner can further prevent the user from feeling cold due to the difference between the user's body surface temperature and the air conditioner heat exchanger temperature, further improve the accuracy of the air conditioner cold wind prevention control, prevent cold wind blowing on the user, improve the heating efficiency of the air conditioner, and further improve the user's comfort.

[0118] Further, in the embodiment, the step of determining the temperature correction parameter according to the indoor environment temperature comprises: determining a corresponding correction coefficient according to the environment temperature interval in which the indoor environment temperature is located; and obtaining the temperature correction parameter after correcting a target temperature difference value or a preset temperature difference value according to the correction coefficient; wherein the target temperature difference value is a temperature difference value between the indoor environment temperature and a first preset temperature.

[0119] Specifically, the environment temperature can be divided into multiple environment temperature intervals in advance, and different environment temperature intervals are correspondingly provided with different preset correction parameters. Based on this, the environment temperature interval in which the current indoor environment temperature is located is determined, and the preset correction parameter corresponding to the environment temperature interval is obtained as the current correction coefficient. In the embodiment, the larger the temperature in the environment temperature interval, the larger the correction coefficient corresponding to the environment temperature interval, so that the corresponding temperature correction parameter can be larger.

[0120] In the embodiment, the target temperature difference value is the absolute value of the difference between the indoor environment temperature and the first preset temperature; in other embodiments, the target temperature difference value can also be the difference between the indoor environment temperature and the first preset temperature. The first preset temperature is specifically a critical temperature of the indoor environment that is preset to distinguish the degree of cold feeling of the human body during heating start. The indoor environment temperature greater than or equal to the first preset temperature indicates that the user feels not too cold; and the indoor environment temperature less than a preset temperature indicates that the user feels cold.

[0121] The preset temperature difference value is specifically a compensation temperature value of the human body temperature that is preset, which can be stored in the memory of the air conditioner.

[0122] The target temperature difference value or the preset temperature difference value is specifically a parameter value representing the cold and hot state of the human body during heating start. The preset temperature difference value is greater than the target temperature difference value.

[0123] Defining the preset temperature difference value or the target temperature difference value as D and the correction coefficient as k, in the embodiment, the temperature correction parameter ΔT=D*k. In other embodiments, the temperature correction parameter can also be calculated by ΔT=D / k.

[0124] Here, the target temperature difference value or the preset temperature difference value is corrected based on the correction coefficient corresponding to the temperature interval in which the indoor environment temperature is located, which is conducive to obtaining a temperature correction parameter that accurately reflects the user's body feeling, thereby ensuring the accuracy of the control of the indoor fan based on the subsequently obtained target heat exchanger temperature, and further improving the effect of preventing cold wind and the heating efficiency.

[0125] Specifically, one of the target temperature difference value and the preset temperature difference value is determined as a final temperature difference value based on the actual operation of the air conditioner (such as the current speed of the fan, the indoor environment temperature, the current deflection angle of the deflector, and / or the frequency of the compressor), and the final temperature difference value is corrected according to the determined correction coefficient to obtain the current temperature correction parameter.

[0126] In this embodiment, the temperature difference value used to determine the temperature correction parameter is determined from the target temperature difference value and the preset temperature difference value based on the indoor environment temperature.

[0127] The step of obtaining the correction coefficient corresponding to the temperature interval further includes: if the indoor environment temperature is less than a second preset temperature, performing the step of obtaining the temperature correction parameter by correcting the preset temperature difference value based on the correction coefficient; if the indoor environment temperature is greater than or equal to the second preset temperature, performing the step of obtaining the temperature correction coefficient by correcting the target temperature difference value based on the correction coefficient; wherein the second preset temperature is less than the first preset temperature. When the indoor environment temperature is less than the second preset temperature, it indicates that the indoor temperature is too low when the heating is started, and at this time, the preset temperature difference value is directly used to determine the temperature correction parameter, which takes into account the human body feeling while ensuring that the air conditioner has a high enough heat exchanger temperature to ensure the heating efficiency of the indoor environment when the target heat exchanger temperature is controlled, thereby preventing cold wind from blowing on people while ensuring that the air conditioner heats the indoor environment at a relatively high heating efficiency. When the indoor environment temperature is greater than or equal to the second preset temperature, it indicates that the indoor temperature is not too low when the heating is started, and at this time, the temperature correction parameter determined based on the actual temperature difference between the indoor environment temperature and the first preset temperature is used to obtain the target heat exchanger temperature, thereby ensuring the accuracy of the control of the heat exchanger temperature of the air conditioner to ensure that the effect of preventing cold wind and the heating efficiency are optimized.

[0128] For example, define T10 as the indoor environment temperature when the air conditioner starts heating operation, define T11 as the first preset temperature, define T12 as the second preset temperature, and define AT as the temperature correction parameter, then when T10≥T11, AT=(T10-T11)K1; when T12≤T10<T11, AT=(T11-T10)K2; when T10<T12, AT=4*K3; wherein K1 is the correction coefficient when T10≥T11; K2 is the correction coefficient when T12≤T10<T11; K3 is the correction coefficient when T10<T12, and 4 is the preset temperature difference value.

[0129] In other embodiments, one of the target temperature difference value and the preset temperature difference value can be directly used to determine the temperature correction parameter without being selected based on the indoor environment temperature.

[0130] Further, in the present embodiment, after step S30, there is further included: returning to perform the step of obtaining the first temperature of the indoor heat exchanger of the air conditioner during the operation of the deflector at the second deflection angle until the operating speed of the indoor fan is greater than or equal to a target speed value. The target speed value is a target value of the operating speed of the indoor fan required when the air conditioner is in heating operation. The target speed value can be obtained by a user setting parameter, can be a parameter configured by default by the air conditioner, or can be a parameter determined by the air conditioner according to the monitored indoor scene.

[0131] In the present embodiment, the indoor fan speed is gradually increased based on the indoor heat exchanger temperature and the target heat exchanger temperature determined based on the initial environment temperature and the current fan speed, which is beneficial to ensure that the cold air of the air conditioner does not blow on people while improving the heat exchange efficiency of the air conditioner, and to ensure the comfort of the indoor user after heating starts.

[0132] It should be noted that in the cycle, the current operating speed of the indoor fan and the operating speed after the speed is increased can be a pre-set speed or a speed determined according to the actual operation of the air conditioner. For example, the indoor fan is pre-set to have a plurality of preset speeds that increase sequentially. When heating starts, the indoor fan operates at the smallest preset speed. When the outlet air temperature and the indoor environment temperature reach the preset condition, the indoor fan can be switched to operate at the next preset speed. When the indoor fan operates at the next preset speed, if the outlet air temperature and the indoor environment temperature reach the preset condition, the indoor fan can continue to be switched to operate at the next preset speed, and so on until the operating speed of the indoor fan is greater than or equal to the target speed value.

[0133] Further, based on any of the above embodiments, another embodiment of the control method of the air conditioner of the present application is proposed. In the present embodiment, referring to Figure 6 , the step of controlling the deflector of the air outlet of the air conditioner to switch from the first deflection angle to the second deflection angle includes:

[0134] Step S11, obtaining the indoor environment temperature;

[0135] The indoor environment temperature can be detected by a temperature detection module provided at the return air inlet of the air conditioner. Specifically, the indoor environment temperature here is the initial temperature of the indoor environment when the air conditioner starts heating.

[0136] Step S12, determining the movement rate of the deflector according to the indoor environment temperature;

[0137] The movement rate here specifically refers to a change value of the deflector angle of the deflector per unit time, for example, an angle opened per second by the deflector. Different indoor environment temperatures correspond to different movement rates. With the increase of the indoor environment temperature, the movement rate presents a decreasing trend; in other words, with the decrease of the indoor environment temperature, the movement rate presents an increasing trend. The second correspondence between the indoor environment temperature and the movement rate can be pre-set and can be in the form of a calculation formula, a mapping relationship, etc. Based on the second correspondence, the movement rate of the deflector corresponding to the current indoor environment temperature can be determined.

[0138] In step S13, the deflector is controlled to switch from the first deflector angle to the second deflector angle according to the movement rate.

[0139] In the present embodiment, in the cold wind prevention stage of the air conditioner heating, the movement rate of the deflector when the air outlet of the air conditioner is opened is determined based on the indoor environment temperature, so that the air volume of the air outlet can gradually increase to adapt to the current temperature condition of the indoor environment, which is more in line with the current situation of the indoor environment and conforms to the actual feeling of the user compared to the pre-set fixed rate, thereby realizing the prevention of cold wind blowing by the air conditioner while ensuring the heating efficiency of the air conditioner and improving the user comfort.

[0140] Specifically, in the present embodiment, step S12 includes:

[0141] In step S121, a target time length corresponding to the indoor environment temperature is determined; the target time length is a required time length for the deflector to open from the first deflector angle to the second deflector angle; and the target angle value is an angle difference between the first deflector angle and the second deflector angle.

[0142] Different indoor environment temperatures correspond to different target time lengths, and the greater the indoor environment temperature, the shorter the target time length; in other words, the smaller the indoor environment temperature, the longer the target time length. Specifically, a temperature-time length correspondence can be pre-set and can be in the form of a mapping relationship, a calculation formula, etc. Based on the temperature-time length correspondence, the target time length corresponding to the current indoor environment temperature can be determined.

[0143] In the embodiment, the determination process of the target time length is specifically as follows: determining a target temperature interval in which the indoor environment temperature is located; determining the target time length according to the target temperature interval; and the target time length decreases with the increase of the temperature in the target temperature interval. Specifically, the indoor environment temperature can be divided into multiple preset temperature intervals in advance, different preset time lengths are set for different preset temperature intervals, and based on this, the preset time length corresponding to the target temperature interval is taken as the target time length by determining the preset temperature interval in which the indoor environment temperature is located as the target temperature interval. For example, the initial temperature of the indoor environment is defined as T10, T11, T12 and T13 are defined as temperature thresholds, T12 < T11 < T13, and the target time length corresponding to T10 in different temperature intervals is as follows: the target time length is t1 when T10 ≥ T13; the target time length is t2 when T11 ≤ T10 < T13; the target time length is t3 when T12 ≤ T10 < T11; and the target time length is t4 when T10 < T12, where t1 < t2 < t3 < t4.

[0144] In other embodiments, the target time length corresponding to the indoor environment temperature can also be calculated by a preset formula.

[0145] In step S122, the movement speed is determined according to the target angle value and the target time length.

[0146] The target angle value can be calculated by the first air guide angle and the second air guide angle. The target rotation speed value can be a fan rotation speed value set by a user, can also be a maximum rotation speed value of the air conditioner in heating operation which is set in advance, and can also be a rotation speed value determined according to the actual operation of the air conditioner.

[0147] In the embodiment, the movement speed is calculated by the target angle value and the target time length. Specifically, the ratio of the target angle value to the target time length is taken as the movement speed.

[0148] In other embodiments, the movement speed and the speed-up speed can also be determined by a preset mapping relationship, such as a mapping table of the target angle value and the target time length, and the time length corresponding to the current target angle value in the mapping table is taken as the target time length.

[0149] In the embodiment, the target time length required for the air outlet to switch from the shielding state to the open state is determined according to the indoor environment temperature, and then the corresponding movement speed is determined according to the target time length and the target value required for the fan and / or the air guide plate to operate, so that the air supply parameters of the air conditioner can be matched with the current indoor environment temperature, the air outlet temperature of the air conditioner can be quickly increased without cold air blowing on people, and the heating efficiency of the air conditioner is ensured.

[0150] Further, in the embodiment, the air outlet is provided with more than one air deflector, and the more than one air deflector are respectively defined as a first air deflector and a second air deflector, the first air deflector is movably arranged on the upper side of the air outlet, and the second air deflector is movably arranged on the lower side of the air outlet.

[0151] The first air deflector corresponds to a first air deflection angle defined as a first angle, and the second air deflector corresponds to a first air deflection angle defined as a second angle, and the first air deflector and the second air deflector correspond to the first angle and the second angle to partially or completely block the air outlet.

[0152] The first air deflector corresponds to a second air deflection angle defined as a third angle, and the second air deflector corresponds to a second air deflection angle defined as a fourth angle, and the first air deflector and the second air deflector correspond to the third angle and the fourth angle to open the air outlet.

[0153] For example, in the process of turning off the air conditioner, the first air deflector is at the first angle and the second air deflector is at the second angle to close the air outlet (as shown in Figure 1 (a)), and based on this, when the air conditioner is powered on and starts heating operation, the first air deflector can be switched from the first angle to the third angle and the second air deflector can be switched from the second angle to the fourth angle according to the above-mentioned determined movement rate to open the air outlet (as shown in Figure 1 (b)).

[0154] For another example, when the air conditioner needs to enter a state of reducing the indoor environment temperature (such as defrosting operation, temperature reaching stop or protection stop state) during heating operation, at this time, the first air deflector is at the first angle and the second air deflector is at the second angle to partially block the air outlet (as shown in Figure 1 (c)), so as to avoid cold air blowing; based on this, when the air conditioner starts heating operation again, the first air deflector can be switched from the first angle to the third angle and the second air deflector can be switched from the second angle to the fourth angle according to the above-mentioned determined movement rate to open the air outlet (as shown in Figure 1 (b)).

[0155] Based on this, the air conditioner with the air outlet provided with the upper and lower air deflectors can make the state of the air outlet being partially blocked or completely blocked switched to the state of being opened, and the rate of the air deflector switching from the cold air prevention angle to the heating angle can be adapted to the indoor environment temperature for regulation and control, so as to ensure that the two air deflectors cooperate to prevent cold air blowing and ensure the heating efficiency.

[0156] Specifically, in the embodiment, when the first angle and the second angle are matched, the first air deflector shields the upper region of the air outlet, and the airflow of the air duct of the air conditioner blows out from the lower region of the air outlet and blows into the room upwards after being guided by the second air deflector, so that the air conditioner can deliver heat to the room while preventing cold air from blowing in; when the third angle and the fourth angle are matched, the first air deflector opens the upper region, and the airflow in the air duct blows into the room downwards after being guided by the first air deflector and the second air deflector, so that the air conditioner does not blow cold air while improving the heating efficiency of the air conditioner on the room.

[0157] Further, in order to ensure the air outlet effect of the air conditioner, the adjustment angles of the first air deflector and the second air deflector required when the two air deflectors are switched from shielding to opening the air outlet are different, and based on this, the step of determining the movement rate of the air deflector of the air outlet of the air conditioner according to the indoor environment temperature comprises: determining the first movement rate of the first air deflector and the second movement rate of the second air deflector according to the indoor environment temperature; the step of controlling the air deflector to open from the first air deflection angle to the second air deflection angle according to the movement rate comprises: controlling the first air deflector to open from the first angle to the third angle according to the first movement rate, and controlling the second air deflector to open from the second angle to the fourth angle according to the second movement rate. In this process, the upper and lower air deflectors can be switched from the cold air prevention angle to the heating angle according to different movement rates respectively, and the opening process of the first air deflector and the second air deflector can be coordinated to ensure that the opening process can realize the rapid increase of the air outlet temperature and prevent cold air from blowing in through the accurate angle matching of the two air deflectors.

[0158] For example, A is defined as the angle value required for the first air deflector to switch from the first angle to the third angle, and V(t) is defined as the first movement rate, and the corresponding first movement rate of different indoor environment temperatures T10 is as follows:

[0159] When T10≥T13, V(t)=A / t1;

[0160] When T11≤T10<T13, V(t)=A / t2;

[0161] When T12≤T10<T11, V(t)=A / t3;

[0162] When T10<T12, V(t)=A / t4;

[0163] Wherein, t1, t2, t3, t4 are respectively the target time length determined based on the indoor environment temperature.

[0164] Define a as the angle value of the second deflector needed to switch from the second angle to the fourth angle, and define V(f) as the second movement rate, then the corresponding second movement rate of different indoor environment temperatures T10 is as follows:

[0165] When T10≥T13, V(f)=a / t1;

[0166] When T11≤T10<T13, V(f)=a / t2;

[0167] When T12≤T10<T11, V(f)=a / t3;

[0168] When T10<T12, V(f)=a / t4;

[0169] Wherein, t1, t2, t3, t4 are respectively the target time length determined based on the indoor environment temperature.

[0170] It should be noted that in other embodiments, the movement rates of the first deflector and the second deflector can also be the same.

[0171] Further, in the present embodiment, the control method of the air conditioner further comprises: when the air conditioner starts defrosting operation in the heating operation process or the compressor of the air conditioner stops in the heating operation process, the first deflector is controlled to operate at the first angle and the second deflector is controlled to operate at the second angle, so that the first deflector blocks the upper region of the air outlet, and the air flow of the air duct of the air conditioner blows out from the lower region of the air outlet and blows into the indoor environment upwards after being guided by the second deflector, as shown in Figure 1 (c); during the process that the first deflector operates at the first angle and the second deflector operates at the second angle, the step of acquiring the indoor environment temperature when the air conditioner starts the heating operation is performed. Based on this, when the air conditioner enters other operation states that will reduce the outlet air temperature during the heating operation, the air conditioner can heat the indoor environment by upward air outlet while the cold air does not blow to the user below through the cooperation of the first deflector and the second deflector. After the heating is restarted, the first deflector and the second deflector are adapted to the corresponding rate of the indoor environment temperature to open the air outlet, thereby ensuring the comfort of the user.

[0172] Further, the step of controlling the first and second air deflector to open from the first and second angle to the third and fourth angle according to the movement speed includes: controlling the first air deflector to open from the first angle to the third angle and controlling the second air deflector to open from the second angle to the fourth angle according to the movement speed, so that the first air deflector opens the upper area, and the airflow in the air duct is guided by the first and second air deflectors and sent into the room downward. Based on this, it is beneficial to ensure cold air prevention while improving the heating efficiency of the air conditioner.

[0173] In addition, an embodiment of the present application further provides a computer readable storage medium, wherein the computer readable storage medium stores a control program of an air conditioner, and the control program of the air conditioner is executed by a processor to realize the related steps of any one of the above control methods of the air conditioner.

[0174] It should be noted that, in this document, the terms "comprising", "containing", or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or system. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or system including the element.

[0175] The above-mentioned serial numbers of the embodiments of the present application are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0176] Through the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and necessary general hardware platforms, of course, they can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, an optical disk) as described above, and includes a plurality of instructions for making a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in various embodiments of the present application.

[0177] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied to other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A control method for an air conditioner, characterized in that, The control method for the air conditioner includes the following steps: During the anti-cold air phase of the air conditioner's heating operation, the indoor ambient temperature is obtained; Determine the target duration corresponding to the indoor ambient temperature, wherein the target duration is the time required for the air guide plate of the air conditioner's air outlet to open from the first air guide angle to the second air guide angle; The movement speed of the air guide plate is determined based on the target angle value and the target duration, wherein the target angle value is the angle difference between the first air guide angle and the second air guide angle, and the movement speed decreases as the indoor ambient temperature increases; and the movement speed increases as the indoor ambient temperature decreases. The air guide plate is controlled to switch from the first air guide angle to the second air guide angle according to the movement speed, wherein the air guide plate blocks the air outlet at the first air guide angle, and opens the air outlet at the second air guide angle; During the operation of the air guide plate at the second air guide angle, the first temperature of the indoor heat exchanger of the air conditioner is obtained; The current speed and initial ambient temperature of the indoor fan are obtained; the initial ambient temperature is the indoor ambient temperature when the air conditioner is running in heating mode. The second target heat exchanger temperature is determined based on the current rotational speed of the indoor fan and the initial ambient temperature. When the first temperature is greater than or equal to the second target heat exchanger temperature, the indoor fan is controlled to increase its speed. Different first temperatures correspond to different indoor fan speeds, and the indoor fan speed increases with the increase of the first temperature.

2. The control method for an air conditioner as described in claim 1, characterized in that, The control method for the air conditioner also includes: When the air conditioner enters the anti-cold air stage, the current second temperature of the indoor heat exchanger is obtained; If the second temperature is less than or equal to the first target heat exchanger temperature, the indoor fan of the air conditioner is controlled to run at the target speed, and the step of controlling the air guide plate of the air outlet of the air conditioner to switch from the first air guide angle to the second air guide angle is executed. The indoor fan has at least two speed settings, and the target speed is located at the lowest of the at least two speed settings.

3. The control method for an air conditioner as described in claim 2, characterized in that, After the step of obtaining the current second temperature of the indoor heat exchanger, the method further includes: If the second temperature is less than or equal to the first target heat exchanger temperature, then the duration of the air conditioner's heating operation is obtained. When the duration is greater than or equal to the target duration, the step of controlling the indoor fan of the air conditioner to run at the target speed is performed; The indoor fan is in a closed state when entering the anti-cold air stage, and the target duration is determined based on the initial ambient temperature, which is the indoor ambient temperature when the air conditioner starts heating.

4. The control method for an air conditioner as described in claim 2, characterized in that, The first target heat exchanger temperature is determined based on the initial ambient temperature; the initial ambient temperature is the indoor ambient temperature when the air conditioner is running in heating mode.

5. The control method for an air conditioner as described in claim 1, characterized in that, The step of determining the second target heat exchanger temperature based on the current rotational speed of the indoor fan and the initial ambient temperature includes: Obtain the reference heat exchanger temperature corresponding to the current speed of the indoor fan, and determine the temperature correction parameter based on the initial ambient temperature; the reference heat exchanger temperature is the minimum temperature that the indoor heat exchanger needs to reach when the indoor fan is running at the current speed. The reference heat exchanger temperature is corrected according to the temperature correction parameters to obtain the second target heat exchanger temperature.

6. The control method for an air conditioner as described in claim 1, characterized in that, After the step of controlling the indoor fan to increase its speed, the method further includes: Return to the step of obtaining the first temperature of the indoor heat exchanger of the air conditioner during the operation of the air guide plate at the second air guide angle, until the operating speed of the indoor fan is greater than or equal to the target speed value.

7. The control method for an air conditioner as described in any one of claims 1 to 4, characterized in that, The air outlet is provided with two air guide plates, which are defined as a first air guide plate and a second air guide plate, respectively. The first air guide plate is movably disposed on the upper side of the air outlet, and the second air guide plate is movably disposed on the lower side of the air outlet. The first air guide angle corresponding to the first air guide plate is defined as the first angle, and the first air guide angle corresponding to the second air guide plate is defined as the second angle. With the first angle and the second angle working together, the first air guide plate blocks the upper area of ​​the air outlet, and the airflow from the air duct of the air conditioner blows towards the air outlet from the lower area of ​​the air outlet and blows upward into the room after being guided by the second air guide plate. The second air guiding angle corresponding to the first air guide plate is defined as the third angle, and the second air guiding angle corresponding to the second air guide plate is defined as the fourth angle. With the cooperation of the third angle and the fourth angle, the first air guide plate opens the upper area, and the airflow in the air duct is guided downward into the room after being guided by the cooperation of the first air guide plate and the second air guide plate.

8. The control method for an air conditioner as described in any one of claims 1 to 4, characterized in that, Before the step of controlling the air guide plate of the air conditioner outlet to switch from the first air guide angle to the second air guide angle, the method further includes: The air conditioner enters the anti-cold air stage when it is powered on and starts heating; or The air conditioner enters the anti-cold air stage after defrosting and starting heating operation; or The compressor is restarted during heating operation to enter the anti-cold air stage.

9. An air conditioner, characterized in that, The air conditioner includes: Indoor fan; An air guide plate is provided at the air outlet of the air conditioner; A control device is provided, wherein the indoor fan and the air guide plate are both connected to the control device. The control device includes: a memory, a processor, and an air conditioner control program stored in the memory and executable on the processor. When the air conditioner control program is executed by the processor, it implements the steps of the air conditioner control method as described in any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a control program for an air conditioner, which, when executed by a processor, implements the steps of the control method for an air conditioner as described in any one of claims 1 to 8.

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