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: obtaining an indoor environment temperature and a current indoor heat exchanger temperature of the air conditioner in a cold air prevention stage of the air conditioner in a heating operation; determining a target heat exchanger temperature according to the indoor environment temperature; when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, controlling an indoor fan of the air conditioner to operate at a higher rotating speed, and / or controlling a deflector of an air outlet of the air conditioner to switch from a first deflection angle to a second deflection angle; wherein the deflector shields the air outlet at the first deflection angle, and the deflector opens the air outlet at the second deflection angle. The application also discloses an air conditioner and a computer readable storage medium. The application aims to improve user comfort in the cold air prevention stage of the air conditioner in the heating operation.

Description

Technical Field

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

[0002] With the development of economy and technology, the application of air conditioners is becoming more and more widespread. At present, many air conditioners have a cold air prevention function. During the cold air prevention stage when the air conditioner is heating, the operation of the fan or air guide plate is generally controlled based on the indoor coil temperature. When the indoor coil temperature exceeds a certain threshold, the air outlet will be opened through the air guide plate or the operating speed of the indoor fan will be increased.

[0003] However, the threshold temperature of indoor coils currently used for anti-cold air control is generally a preset default parameter, which ignores the actual user's physical sensation, resulting in insufficient accuracy of anti-cold air control and affecting user comfort. Summary of the Invention

[0004] The main objective of this invention is to provide a control method for an air conditioner, an air conditioner, and a computer-readable storage medium, with the aim of improving user comfort during the heating and anti-cold-wind phase of the air conditioner.

[0005] To achieve the above objectives, the present invention provides a control method for an air conditioner, the control method comprising the following steps:

[0006] During the anti-cold air phase of the air conditioner's heating operation, the indoor ambient temperature and the current indoor heat exchanger temperature of the air conditioner are obtained.

[0007] Determine the target heat exchanger temperature based on the indoor ambient temperature;

[0008] When the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the indoor fan of the air conditioner is controlled to increase its speed, and / or 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.

[0009] In the first air guiding angle, the air guide plate blocks the air outlet, and in the second air guiding angle, the air guide plate opens the air outlet.

[0010] Optionally, the step of determining the target heat exchanger temperature based on the indoor ambient temperature includes:

[0011] Obtain the current rotational speed of the indoor fan;

[0012] The target heat exchanger temperature is determined based on the current rotational speed of the indoor fan and the indoor ambient temperature.

[0013] Optionally, the step of determining the target heat exchanger temperature based on the current rotational speed and the indoor ambient temperature includes:

[0014] Obtain the reference heat exchanger temperature corresponding to the current speed of the indoor fan, and determine the temperature correction parameter based on the indoor 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.

[0015] The reference heat exchanger temperature is corrected according to the temperature correction parameters to obtain the target heat exchanger temperature.

[0016] Optionally, the step of determining the temperature correction parameter based on the indoor ambient temperature includes:

[0017] Determine the correction coefficient corresponding to the indoor ambient temperature, and determine the target temperature difference between the indoor ambient temperature and the first preset temperature;

[0018] The target temperature difference value is corrected according to the correction coefficient to obtain the temperature correction parameter.

[0019] Optionally, after determining the correction coefficient corresponding to the indoor ambient temperature and determining the target temperature difference between the indoor ambient temperature and the first preset temperature, the method further includes:

[0020] If the indoor ambient temperature is lower than the second preset temperature, the preset temperature difference value is corrected according to the correction coefficient to obtain the temperature correction parameter;

[0021] If the indoor ambient temperature is greater than or equal to the second preset temperature, then the step of correcting the target temperature difference value according to the correction coefficient and obtaining the temperature correction coefficient is performed;

[0022] Wherein, the second preset temperature is less than the first preset temperature, and the preset temperature difference value is greater than the target temperature difference value.

[0023] Optionally, the step of controlling the indoor fan of the air conditioner to increase its speed when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, and / or controlling the air guide vane of the air conditioner outlet to switch from the first air guide angle to the second air guide angle includes:

[0024] If the target heat exchanger temperature is less than or equal to the set temperature threshold, then when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the step of controlling the indoor fan of the air conditioner to increase its speed is executed, and the air guide plate is controlled to maintain the first air guide angle.

[0025] If the target heat exchanger temperature is greater than the set temperature threshold, then when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the steps of controlling the indoor fan of the air conditioner to increase its speed and controlling the air guide plate to switch from the first air guide angle to the second air guide angle are executed.

[0026] Optionally, after the step of controlling the indoor fan of the air conditioner to increase its speed when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the method further includes:

[0027] Return to the step of obtaining the indoor ambient temperature and the current indoor heat exchanger temperature of the air conditioner during the anti-cold air phase of the air conditioner's heating operation, until the speed of the indoor fan is greater than or equal to the target speed; wherein, the indoor ambient temperature is the initial temperature of the indoor environment when the air conditioner starts heating operation.

[0028] Optionally, the air outlet is provided with more than one air guide plate, which are respectively defined as a first air guide plate and a second air guide plate. 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.

[0029] 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.

[0030] 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.

[0031] Optionally, after the step of determining the target heat exchanger temperature based on the current speed of the indoor fan and the indoor ambient temperature, the method further includes:

[0032] When the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the running time of the indoor fan at the current speed is obtained;

[0033] When the runtime is greater than or equal to the target runtime, the steps of controlling the indoor fan of the air conditioner to increase its speed and / or 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 are executed.

[0034] Furthermore, in order to achieve the above objectives, this application also proposes an air conditioner, the air conditioner comprising:

[0035] Indoor fan;

[0036] An air guide plate is provided at the air outlet of the air conditioner;

[0037] A control device, wherein the air guide plate and the indoor fan are both connected to the control device, the control device comprising: a memory, a processor, and an air conditioner control program stored in the memory and executable on the processor, wherein 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 of the preceding claims.

[0038] In addition, to achieve the above objectives, this application also proposes a computer-readable storage medium storing a control program for an air conditioner, which, when executed by a processor, implements the steps of the control method for the air conditioner as described in any of the preceding claims.

[0039] This invention proposes a control method for an air conditioner. During the anti-cold-wind phase of the air conditioner's heating operation, the method determines the target heat exchanger temperature based on the indoor ambient temperature. When the current indoor heat exchanger temperature is higher than the target temperature, the method controls the indoor fan to increase its speed or the air guide vane to switch from a first air guide angle that blocks the air outlet to a second air guide angle that opens the air outlet. In this control process, the required temperature threshold for the indoor heat exchanger is no longer a pre-set fixed parameter, but is determined based on the actual indoor ambient temperature. The indoor ambient temperature can characterize the impact of the air conditioner's airflow on the user's comfort, ensuring that the anti-cold-wind control of the air conditioner matches the user's actual comfort, improving the accuracy of the anti-cold-wind control, and thus improving user comfort during the air conditioner's heating anti-cold-wind phase. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the air outlet structure of an embodiment of the air conditioner of the present invention;

[0041] Figure 2 This is a schematic diagram of the hardware structure involved in the operation of an embodiment of the air conditioner of the present invention;

[0042] Figure 3 This is a flowchart illustrating an embodiment of the control method for an air conditioner according to the present invention;

[0043] Figure 4 for Figure 3 A detailed flowchart of step S20.

[0044] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0046] The main solution of this invention is as follows: during the anti-cold air phase of the air conditioner's heating operation, the indoor ambient temperature and the current indoor heat exchanger temperature of the air conditioner are obtained; a target heat exchanger temperature is determined based on the indoor ambient temperature; when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the indoor fan of the air conditioner is controlled to increase its speed, and / or, the air guide plate of the air outlet of the air conditioner is controlled to switch from a first air guide angle to a second air guide angle; wherein, 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.

[0047] Because the current technology for controlling indoor coil temperature is generally a preset default parameter, which ignores the actual user's physical sensation, the accuracy of the anti-cold air control is insufficient, affecting user comfort.

[0048] The present invention provides the above-mentioned solution, which aims to improve user comfort during the heating and cold air prevention phase of the air conditioner.

[0049] This invention provides an air conditioner. In this embodiment, the air conditioner is a wall-mounted air conditioner. In other embodiments, the air conditioner may also be a cabinet air conditioner, a ceiling-mounted air conditioner, a portable air conditioner, a window air conditioner, etc., depending on actual needs.

[0050] In this embodiment, refer to Figure 1 The air conditioner includes a housing 1, which has an air outlet 01 and an air guide plate 2 on the air outlet 01.

[0051] Specifically, the air guide plate 2 is movably disposed at the air outlet 01 and has different air guiding positions. For example, the air guide plate 2 can be rotated or slidably disposed at the air outlet 01. When the air guide plate 2 is in different air guiding positions, the air outlet 01 has different air outlet directions and / or air volume.

[0052] The number of air guide plates 2 can be set according to actual needs. In this embodiment, there are two air guide plates 2; in other embodiments, there may be one or more than two air guide plates 2.

[0053] Specifically, the housing 1 has an air duct connected to the air outlet 01, and the air duct contains an indoor heat exchanger and an indoor fan 3. Driven by the indoor fan 3, indoor air enters the air duct and undergoes heat exchange through the indoor heat exchanger. The heat-exchanged air is then sent into the indoor environment from the air outlet 01.

[0054] Specifically, in this embodiment, the air outlet 01 is provided with more than one air guide plate 2, which are respectively defined as the first air guide plate 21 and the second air guide plate 22. The first air guide plate 21 is rotatably disposed on the upper side of the air outlet 01, and the second air guide plate 22 is rotatably disposed on the lower side of the air outlet 01.

[0055] The area of ​​the first air guide plate 21 is smaller than the area of ​​the second air guide plate 22. When the second air guide plate 22 closes or partially blocks the air outlet 01, the first air guide plate 21 is located inside the second air guide plate 22. When the second air guide plate 22 is located inside the first air guide plate 21, it can adjust the direction or volume of the airflow blowing towards the first air guide plate 21 in the air duct; when the first air guide plate 21 opens the air outlet 01, the second air guide plate 22 can adjust the air outlet direction of the air outlet 01.

[0056] Furthermore, the air conditioner may 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 ambient temperature. In this embodiment, the first temperature sensor is located at the return air vent of the air duct. In other embodiments, the first temperature sensor may also be located in the indoor environment where the air conditioner operates. The second temperature sensor is used to detect the temperature of the indoor heat exchanger. In this embodiment, the second temperature sensor is located in the middle of the coil of the indoor heat exchanger; in other embodiments, the second temperature sensor may also be located at the outlet or outlet of the indoor heat exchanger coil, or even on the inner wall of the air duct near the indoor heat exchanger.

[0057] Furthermore, the air conditioner may also include a control device, see reference. Figure 2 The aforementioned air guide plate 2, indoor fan 3, and temperature detection module 4 are all connected to the control device here. The control device can control the operation of the air guide plate 2 and indoor fan 3, and can also acquire the temperature data detected by the temperature detection module 4.

[0058] 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.

[0059] Those skilled in the art will understand that Figure 2The 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.

[0060] 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.

[0061] This invention also provides a control method for an air conditioner, which is used to control the air conditioner described above.

[0062] 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:

[0063] Step S10: During the anti-cold air phase of the air conditioner's heating operation, obtain the indoor ambient temperature and the current indoor heat exchanger temperature of the air conditioner.

[0064] 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.

[0065] The indoor ambient temperature can be detected by a temperature sensor installed at the air conditioner's return air vent. In this embodiment, the indoor ambient temperature is the initial temperature of the indoor environment when the air conditioner starts heating. Specifically, the initial temperature can be the indoor ambient temperature detected when the air conditioner is powered on and starts heating; it can also be the indoor ambient temperature detected when the air conditioner starts heating after defrosting mode has ended; or it can be the indoor ambient temperature detected when the compressor restarts after the air conditioner reaches its heating temperature and stops or stops for protection during heating operation. In other embodiments, the indoor ambient temperature can also be the current temperature of the indoor environment detected in real time.

[0066] The temperature of the indoor heat exchanger is specifically detected by a temperature sensor installed on the indoor heat exchanger coil.

[0067] Step S20: Determine the target heat exchanger temperature based on the indoor ambient temperature;

[0068] The target heat exchanger temperature is the minimum temperature that the indoor fan needs to reach when the air conditioner's heat exchanger temperature is rising at its current speed. It can be used to distinguish whether the air conditioner's heat exchanger temperature can reach the preset heat exchanger temperature (which is lower than the target heat exchanger temperature) after the indoor fan speed is increased, so as to improve heating efficiency and prevent cold air from blowing in.

[0069] Different indoor ambient temperatures correspond to different target heat exchanger temperatures. Specifically, a pre-established correspondence between ambient temperature and heat exchanger temperature can be established, which can be a mapping relationship, a calculation relationship, or other forms. In this correspondence, the heat exchanger temperature tends to decrease as the ambient temperature increases. In other embodiments, the heat exchanger temperature and ambient temperature may also have other trends.

[0070] Specifically, one correspondence can be preset here. Substituting the indoor ambient temperature into this correspondence yields the heat exchanger temperature, which can then be used as the target heat exchanger temperature. Alternatively, more than one correspondence can be preset. Based on the actual operating conditions of the air conditioner, one of these correspondences is selected as the target correspondence. Substituting the indoor ambient temperature into the target correspondence yields the heat exchanger temperature, which can then be used as the target heat exchanger temperature.

[0071] Step S30: When the indoor heat exchanger temperature is greater than the target heat exchanger temperature, control the indoor fan of the air conditioner to increase its speed, and / or control 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.

[0072] In the first air guiding angle, the air guide plate blocks the air outlet, and in the second air guiding angle, the air guide plate opens the air outlet.

[0073] When the indoor fan increases its speed, the speed can be increased according to a pre-set speed adjustment parameter, or the speed adjustment parameter can be determined based on the actual operating conditions of the air conditioner. For example, in this embodiment, when the indoor fan is currently operating at the first speed, it can be controlled to increase to the second speed by a preset speed increase margin.

[0074] At the first air guiding angle, the air guide plate can either close the air outlet or partially block its area. The angle between the airflow blowing towards the air outlet and the air guide plate within the duct is greater than a set angle threshold (e.g., 30 degrees). Defining the plane where the air outlet is located as the reference plane, the first air guiding angle is the angle between the air guide plate and the reference plane when the air guide plate is in the first air guiding position. The first air guiding angle is less than the set angle. Specifically, in one embodiment, there is one air guide plate, which is rotatably positioned below the air outlet. At the first air guiding angle, a gap is formed between the air guide plate and the upper edge of the air outlet. The internal airflow of the air conditioner, guided by the air guide plate, is sent upwards into the room through the gap. At this time, the air outlet of the air conditioner does not blow on users active in the lower part of the space, while the air conditioner can regulate the indoor air temperature. In another embodiment, there may be more than one air guide plate, and the angle between each air guide plate and the reference plane is less than the set angle.

[0075] At the second air guiding angle, the air guide plate opens the air outlet, and the angle between the airflow blowing towards the air outlet and the air guide plate in the air duct is less than a set angle threshold. Specifically, in this embodiment, at the second air outlet angle, the air outlet direction is parallel to the surface of the air guide plate, and the airflow in the air duct blows directly into the room. Defining the plane where the air outlet is located as the reference plane, the second air guiding angle is the angle between the air guide plate and the reference plane when the air guide plate is in the second air guiding position, and the second air guiding angle is greater than a set angle.

[0076] The first and second air guide angles can be preset angles or determined based on the actual operation of the air conditioner. Specifically, the second air guide angle can be determined based on the indoor ambient temperature obtained above. The higher the indoor ambient temperature, the larger the air outlet area corresponding to the second air guide angle, and the greater the air volume delivered by the air conditioner towards the lower space.

[0077] The air guide plate switches from the first air guiding angle to the second air guiding angle, the air outlet area increases, and the air outlet direction changes from a direction that will not blow towards the user to a direction that can blow towards the user.

[0078] Specifically, the air guide vane can switch from the first air guide angle to the second air guide angle according to a pre-set fixed movement speed or a movement speed determined according to the actual operating conditions of the air conditioner.

[0079] In this embodiment, when the air guide plate is rotated and positioned below the air outlet, the air outlet direction changes sequentially from upward, horizontal, and downward as the air guide plate switches from the first air guide angle to the second air guide angle.

[0080] This invention proposes a control method for an air conditioner. During the anti-cold-wind phase of the air conditioner's heating operation, the method determines the target heat exchanger temperature based on the indoor ambient temperature. When the current indoor heat exchanger temperature is higher than the target temperature, the method controls the indoor fan to increase its speed or the air guide vane to switch from a first air guide angle that blocks the air outlet to a second air guide angle that opens the air outlet. In this control process, the required temperature threshold for the indoor heat exchanger is no longer a pre-set fixed parameter, but is determined based on the actual indoor ambient temperature. The indoor ambient temperature can characterize the impact of the air conditioner's airflow on the user's comfort, ensuring that the anti-cold-wind control of the air conditioner matches the user's actual comfort, improving the accuracy of the anti-cold-wind control, and thus improving user comfort during the air conditioner's heating anti-cold-wind phase.

[0081] Furthermore, based on the above embodiments, another embodiment of the control method for the air conditioner of this application is proposed. In this embodiment, reference is made to... Figure 4 Step S20 includes:

[0082] Step S21: Obtain the current rotational speed of the indoor fan;

[0083] Step S22: Determine the target heat exchanger temperature based on the current rotation speed of the indoor fan and the indoor ambient temperature.

[0084] Different indoor fan speeds and initial ambient temperatures correspond to different target heat exchanger temperatures. Specifically, a pre-established correspondence between fan speed, ambient temperature, and heat exchanger temperature can be used, such as a mapping relationship or a calculation relationship. Substituting the current indoor fan speed and ambient temperature into this correspondence yields the target heat exchanger temperature. In this correspondence, the heat exchanger temperature increases with increasing fan speed and decreases with increasing ambient temperature.

[0085] Alternatively, multiple correspondences between air conditioner speed and outlet air temperature can be pre-established. These correspondences can take the form of mapping relationships, calculation relationships, etc. Different correspondences correspond to different indoor ambient temperatures. Based on this, one of the multiple correspondences is selected as the target correspondence according to the current indoor ambient temperature. Substituting the current air conditioner speed into the target correspondence yields the target outlet air temperature. In addition, there can be a single correspondence between air conditioner speed and outlet air temperature. Based on this correspondence, a reference outlet air temperature corresponding to the current air conditioner speed can be determined. The result of correcting the reference outlet air temperature according to the indoor ambient temperature is then used as the target outlet air temperature.

[0086] In this embodiment, the actual user's comfort under the current airflow of the air conditioner can be accurately characterized by combining the indoor ambient temperature and the current fan speed. Based on this, the target heat exchanger temperature is determined by combining the indoor ambient temperature and the current fan speed. Only when the actual temperature of the indoor heat exchanger reaches or exceeds the determined target heat exchanger temperature will the indoor fan speed be further increased or the air outlet be opened through the air guide plate. This prevents the user from feeling cold due to the difference between the user's body temperature and the air conditioner's airflow temperature during the air conditioner's anti-cold air control, further improving the accuracy of the air conditioner's anti-cold air control, ensuring that cold air is prevented from blowing into people while improving the heating efficiency of the air conditioner, and further improving user comfort.

[0087] Specifically, in this embodiment, the step of determining the target heat exchanger temperature based on the current rotation speed and the indoor ambient temperature includes: obtaining a reference heat exchanger temperature corresponding to the current rotation speed of the indoor fan; determining a temperature correction parameter based on the indoor ambient temperature; the reference heat exchanger temperature being the minimum temperature that the indoor heat exchanger needs to reach when the indoor fan is running at the current rotation speed; and correcting the reference heat exchanger temperature based on the temperature correction parameter to obtain the target heat exchanger temperature.

[0088] Different current fan speeds correspond to different reference heat exchanger temperatures; specifically, the higher the current fan speed, the higher the reference heat exchanger temperature. The relationship between the current fan speed and the reference heat exchanger temperature can be preset, such as through calculation or mapping. Based on this relationship, the reference heat exchanger temperature corresponding to the current fan speed can be determined. The target heat exchanger temperature is lower than this reference heat exchanger temperature.

[0089] Specifically, in this embodiment, different indoor fan speeds correspond to different heat exchanger temperature ranges; the higher the speed, the higher the temperature within that range. Based on this, the heat exchanger temperature range corresponding to the current indoor fan speed can be determined, and the minimum critical temperature of this range is taken as the target heat exchanger temperature. The maximum critical value of this range is determined based on the target speed value required to be achieved after the indoor fan speed is subsequently increased; specifically, the maximum critical value is the reference heat exchanger temperature corresponding to the target speed value.

[0090] Temperature correction parameters specifically characterize the difference between the perceived temperature and the heat exchanger temperature during the air conditioner's heating process. Temperature correction parameters can include temperature correction magnitude or temperature correction ratio. Different indoor ambient temperatures correspond to different values ​​for the temperature correction parameter; the higher the indoor ambient temperature, the lower the target heat exchanger temperature obtained from the temperature correction parameter. For example, when the temperature correction parameter is a temperature correction magnitude, the higher the indoor ambient temperature, the larger the temperature correction magnitude can be, thus resulting in a lower target heat exchanger temperature. The correspondence between indoor ambient temperature and temperature correction parameters can be preset, and can be a mapping relationship, a calculation relationship, etc. Based on this correspondence, the temperature correction parameter corresponding to the current indoor ambient temperature can be determined. Specifically, multiple preset ambient temperatures can be set in advance, and the corresponding temperature correction parameter can be determined based on the quantitative relationship between the indoor ambient temperature and these multiple preset ambient temperatures.

[0091] In this embodiment, the temperature correction parameter is the temperature correction range, defined as ΔT, and the reference heat exchanger temperature is T. T2 The target heat exchanger temperature T T2K =T T2 -ΔT. In other embodiments, the temperature correction parameter is a temperature correction ratio, defined as p (less than 1), then the target heat exchanger temperature T T2K =T T2 *p.

[0092] In this embodiment, the minimum temperature of the indoor heat exchanger corresponding to the current rotation speed is corrected based on the indoor ambient temperature. The indoor ambient temperature can characterize the user's body temperature. Based on this, the air conditioner's anti-cold air control can be further improved because the user's body temperature and the air conditioner's heat exchanger temperature cause the user to feel cold. This further improves the accuracy of the air conditioner's anti-cold air control, ensuring that cold air is prevented from blowing on people while improving the heating efficiency of the air conditioner, and further improving user comfort.

[0093] Furthermore, in this embodiment, the step of determining the temperature correction parameter based on the indoor ambient temperature includes: determining a correction coefficient corresponding to the indoor ambient temperature; determining a target temperature difference value between the indoor ambient temperature and a first preset temperature; and correcting the target temperature difference value based on the correction coefficient to obtain the temperature correction parameter.

[0094] Different indoor ambient temperatures correspond to different correction factors, which can be determined through mapping relationships or calculation formulas.

[0095] In this embodiment, a correction coefficient is determined based on the ambient temperature range within which the indoor ambient temperature falls. Specifically, the ambient temperature can be pre-divided into multiple ambient temperature ranges, with different preset correction parameters corresponding to different ranges. Based on this, the ambient temperature range within which the current indoor ambient temperature falls is determined, and the preset correction parameter corresponding to that range is obtained as the current correction coefficient. In this embodiment, the higher the temperature within the ambient temperature range, the larger the correction coefficient can be, thus resulting in a larger temperature correction parameter.

[0096] The target temperature difference value is specifically a parameter value characterizing the human body's hot or cold state when heating is activated. In this embodiment, the target temperature difference value is the absolute value of the difference between the indoor ambient temperature and the first preset temperature; in other embodiments, the target temperature difference value may also be the difference between the indoor ambient temperature and the first preset temperature. The first preset temperature is specifically a pre-set critical temperature of the indoor environment used to distinguish the degree of coldness felt by the human body when heating is activated. An indoor ambient temperature greater than or equal to the first preset temperature indicates that the user does not feel too cold; an indoor ambient temperature less than the preset temperature indicates that the user feels relatively cold.

[0097] Here, the target temperature difference value is corrected based on the correction coefficient corresponding to the temperature range of the indoor ambient temperature. This helps to obtain temperature correction parameters that accurately reflect the user's physical sensation, thereby ensuring the accuracy of the indoor fan and / or air guide plate control based on the subsequently obtained target heat exchanger temperature, and further improving the balance between the air conditioner's anti-cold air effect and heating efficiency.

[0098] Furthermore, in this embodiment, after determining the correction coefficient corresponding to the indoor ambient temperature and determining the target temperature difference value between the indoor ambient temperature and the first preset temperature, the method further includes: if the indoor ambient temperature is less than the second preset temperature, then correcting the preset temperature difference value according to the correction coefficient to obtain the temperature correction parameter; if the indoor ambient temperature is greater than or equal to the second preset temperature, then performing the step of correcting the target temperature difference value according to the correction coefficient to obtain the temperature correction coefficient; wherein, the second preset temperature is less than the first preset temperature, and the preset temperature difference value is greater than the target temperature difference value.

[0099] The preset temperature difference value is specifically a pre-set compensation temperature value for the human body's perceived temperature, which can be stored in the air conditioner's memory.

[0100] The preset temperature difference or target temperature difference is defined as D, and the correction coefficient is k. In this embodiment, the temperature correction parameter ΔT = D * k. In other embodiments, the temperature correction parameter can also be calculated by ΔT = D / k.

[0101] In this embodiment, if the indoor ambient temperature is lower than the second preset temperature, it indicates that the indoor temperature is too low when heating starts. In this case, the preset temperature difference value is directly used to determine the temperature correction parameter. While considering the human body's comfort, the air conditioner is prevented from having a sufficiently high heat exchanger temperature under the determined target heat exchanger temperature control to ensure the heating efficiency of the indoor environment. This prevents cold air from blowing into people while ensuring that the air conditioner heats the indoor environment with high heating efficiency. If the indoor ambient temperature is greater than or equal to the second preset temperature, it indicates that the indoor temperature is not too low when heating starts. In this case, the target heat exchanger temperature is obtained by combining the temperature correction parameter determined by the actual temperature difference between the indoor ambient temperature and the first preset temperature. This ensures the accuracy of the air conditioner's heat exchanger temperature control, so as to ensure that the anti-cold air effect and heating efficiency are both achieved to the best state.

[0102] For example, let T10 be the indoor ambient temperature when the air conditioner is in heating mode, T11 be the first preset temperature, T12 be the second preset temperature, and ΔT be the temperature correction parameter. Then, when T10 ≥ T11, ΔT = (T10 - T11)K1; when T12 ≤ T10 < T11, ΔT = (T11 - T10)K2; when T10 < T12, ΔT = 4 * K3. Where 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.

[0103] In other embodiments, it is not necessary to select based on the indoor ambient temperature; one of the target temperature difference value and the preset temperature difference value can be directly used to determine the temperature correction parameter. Alternatively, based on the actual operating conditions of the air conditioner (such as the current fan speed, indoor ambient temperature, the current air guide angle of the air guide plate, and / or the compressor frequency, etc.), one of the target temperature difference value and the preset temperature difference value can be determined as the final temperature difference value, and the final temperature difference value can be corrected according to the determined correction coefficient to obtain the current temperature correction parameter.

[0104] Furthermore, based on any of the above embodiments, another embodiment of the control method for the air conditioner of this application is proposed. In this embodiment, reference is made to... Figure 4 Step S30 includes:

[0105] Step S31: If the target heat exchanger temperature is less than or equal to the set temperature threshold, then when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the step of controlling the indoor fan of the air conditioner to increase its speed is executed, and the air guide plate is controlled to maintain the first air guide angle.

[0106] Step S32: If the target heat exchanger temperature is greater than the set temperature threshold, then when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the steps of controlling the indoor fan of the air conditioner to increase its speed and controlling the air guide plate to switch from the first air guide angle to the second air guide angle are executed.

[0107] The temperature threshold setting is specifically used to distinguish whether the air conditioner's outlet temperature will make the user feel cold. The temperature threshold setting is a preset parameter.

[0108] When the target heat exchanger temperature is low, it means that if the air conditioner fan speed is increased, the air it sends directly into the room will make the user feel cold. At this time, when the indoor heat exchanger temperature is lower than the target heat exchanger temperature, the air outlet is blocked by the air guide plate. At the same time, the fan speed is increased, which can increase the amount of heat sent into the indoor environment by the air conditioner while avoiding the low temperature air from the air conditioner blowing towards the user and affecting the user's comfort.

[0109] When the target heat exchanger temperature is high, it indicates that increasing the air conditioner fan speed will not cause users to feel cold as the air is directly delivered into the room. In this case, when the indoor heat exchanger temperature is higher than the target heat exchanger temperature, the air outlet is opened via the air guide vane, and the fan speed is increased simultaneously. This ensures a rapid increase in the outlet air temperature while improving the air conditioner's heating efficiency for the indoor environment. If the air guide vane is already operating at the second air guide angle when the indoor heat exchanger temperature is higher than the target heat exchanger temperature, then the air guide vane is controlled to maintain its second air guide angle operation.

[0110] Furthermore, after step S30, when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the step further includes: returning to the step of obtaining the indoor ambient temperature and the current indoor heat exchanger temperature of the air conditioner during the anti-cold air phase of the air conditioner's heating operation, until the indoor fan speed is greater than or equal to the target speed; wherein, the indoor ambient temperature is the initial temperature of the indoor environment when the air conditioner starts heating operation.

[0111] The target speed is the target operating speed of the indoor fan required when the air conditioner is in heating mode. The specific target speed value can be obtained by acquiring user-set parameters, the default parameters of the air conditioner, or parameters determined by the air conditioner based on the monitored indoor scene conditions.

[0112] During the process of increasing the indoor fan speed, when the indoor fan speed is greater than or equal to the set speed, or when the indoor heat exchanger temperature reaches the condition in step S32 above, the air guide plate is controlled to switch from the first air guide angle to the second air guide angle.

[0113] In this embodiment, by gradually increasing the indoor fan speed to the target speed based on the indoor heat exchanger temperature and the target heat exchanger temperature determined based on the indoor ambient temperature and the current fan speed, it is beneficial to ensure that the air conditioner's cold air does not blow on people while improving the heat exchange efficiency of the air conditioner and ensuring the comfort of indoor users after heating is started.

[0114] It should be noted that during the cycle, the current operating speed of the indoor fan and the speed after increasing the speed can be either a preset speed or a speed determined based on the actual operating conditions of the air conditioner. For example, the indoor fan may have multiple preset speeds that increase sequentially. When heating starts, the indoor fan operates at the minimum preset speed. When the outlet air temperature and the indoor ambient temperature reach the preset conditions, the indoor fan can switch to the next preset speed. During the operation of the indoor fan at the next preset speed, when the outlet air temperature and the indoor ambient temperature reach the preset conditions, the indoor fan can continue to switch to 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.

[0115] Furthermore, based on any of the above embodiments, the air outlet is provided with more than one air guide plate, which are respectively defined as a first air guide plate and a second air guide plate. 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.

[0116] 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.

[0117] 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.

[0118] For example, when the air conditioner enters the anti-cold air phase, the first air guide vane operates at a first angle and the second air guide vane operates at a second angle to partially block the air outlet (e.g., Figure 1 (a) shows) to prevent cold air from blowing into people; based on this, when the air conditioner restarts its heating operation, the first air guide plate is controlled to switch from the first angle to the third angle and the second air guide plate is controlled to switch from the second angle to the fourth angle according to the determined movement rate, so as to open the air outlet (as shown). Figure 1 (b)

[0119] Based on this, in an air conditioner with two guide vanes at the air outlet, when the indoor heat exchanger temperature is high enough, the first guide vane blocks the upper area of ​​the air outlet when the first angle and the second angle are combined, and the airflow from the air duct of the air conditioner blows out from the lower area of ​​the air outlet and is guided upward into the room after passing through the second guide vane. This allows the air conditioner to deliver heat to the room while preventing cold air from blowing in. When the third angle and the fourth angle are combined, the first guide vane opens the upper area, and the airflow in the duct is guided downward into the room after passing through the first and second guide vanes. This prevents cold air from blowing in while improving the heating efficiency of the air conditioner.

[0120] Furthermore, based on any of the above embodiments, after the step of determining the target heat exchanger temperature according to the current speed of the indoor fan and the indoor ambient temperature, the method further includes: when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, obtaining the running time of the indoor fan at the current speed; when the running time is greater than or equal to the target time, executing the step of controlling the indoor fan of the air conditioner to increase its speed and / or 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.

[0121] The runtime here specifically begins when the indoor fan switches from other speeds to its current speed. As the indoor fan maintains its current speed, the runtime continuously accumulates, and the current accumulated runtime is used as the runtime here. The target runtime can be a pre-set fixed parameter or a parameter determined based on the current operating conditions of the air conditioner. For example, the target runtime varies depending on the current speed of the indoor fan; specifically, a higher current fan speed results in a shorter target runtime, and a lower current fan speed results in a longer target runtime. Here, when the indoor fan runs for a sufficiently long time while the air conditioner's outlet temperature is sufficiently high, it indicates that the air conditioner's outlet temperature is stable at a high level at the current fan speed. Even if the indoor fan speed is further increased or the air guide vanes are adjusted to increase the downward airflow, the air conditioner still has a sufficiently high outlet temperature to prevent cold air from blowing in. Therefore, at this point, the preset conditions are met, thus achieving cold air prevention while improving the air conditioner's heating efficiency.

[0122] Furthermore, this invention also proposes a computer-readable storage medium storing a control program for an air conditioner. When the control program is executed by a processor, it implements the relevant steps of any of the above-described air conditioner control methods.

[0123] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0124] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0125] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0126] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

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 and the current indoor heat exchanger temperature of the air conditioner are obtained. The current speed of the indoor fan is obtained, and the target heat exchanger temperature is determined based on the current speed of the indoor fan and the indoor ambient temperature. A correspondence between fan speed, ambient temperature and heat exchanger temperature is established in advance. When the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the indoor fan of the air conditioner is controlled to increase its speed, and / or 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. Specifically, at the first air guiding angle, the air guide plate can close the air outlet or block part of the air outlet area; at the second air guiding angle, the air guide plate opens the air outlet; and the higher the indoor ambient temperature, the larger the air outlet area corresponding to the second air guiding angle.

2. The control method for an air conditioner as described in claim 1, characterized in that, The step of determining the target heat exchanger temperature based on the current rotation speed and the indoor 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 indoor 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 target heat exchanger temperature.

3. The control method for an air conditioner as described in claim 2, characterized in that, The step of determining the temperature correction parameter based on the indoor ambient temperature includes: Determine the correction coefficient corresponding to the indoor ambient temperature, and determine the target temperature difference between the indoor ambient temperature and the first preset temperature; The target temperature difference value is corrected according to the correction coefficient to obtain the temperature correction parameter.

4. The control method for an air conditioner as described in claim 3, characterized in that, After determining the correction coefficient corresponding to the indoor ambient temperature and determining the target temperature difference between the indoor ambient temperature and the first preset temperature, the method further includes: If the indoor ambient temperature is lower than the second preset temperature, the preset temperature difference value is corrected according to the correction coefficient to obtain the temperature correction parameter; If the indoor ambient temperature is greater than or equal to the second preset temperature, then the step of correcting the target temperature difference value according to the correction coefficient and obtaining the temperature correction coefficient is performed; Wherein, the second preset temperature is less than the first preset temperature, and the preset temperature difference value is greater than the target temperature difference value.

5. The control method for an air conditioner as described in claim 1, characterized in that, The steps of controlling the indoor fan of the air conditioner to increase its speed when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, and / or controlling the air guide vane of the air conditioner outlet to switch from a first air guide angle to a second air guide angle include: If the target heat exchanger temperature is less than or equal to a set temperature threshold, then when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the step of controlling the indoor fan of the air conditioner to increase its speed is executed, and the air guide plate is controlled to maintain the first air guide angle. If the target heat exchanger temperature is greater than the set temperature threshold, then when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the steps of controlling the indoor fan of the air conditioner to increase its speed and controlling the air guide plate to switch from the first air guide angle to the second air guide angle are executed.

6. The control method for an air conditioner as described in claim 1, characterized in that, After the step of controlling the indoor fan of the air conditioner to increase its speed when the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the method further includes: Return to the step of obtaining the indoor ambient temperature and the current indoor heat exchanger temperature of the air conditioner during the anti-cold air phase of the air conditioner's heating operation, until the speed of the indoor fan is greater than or equal to the target speed; wherein, the indoor ambient temperature is the initial temperature of the indoor environment when the air conditioner starts heating operation.

7. The control method for an air conditioner as described in claim 5, characterized in that, The air outlet is provided with more than one air guide plate, which is defined as a first air guide plate and a second air guide plate. 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 7, characterized in that, Following the step of determining the target heat exchanger temperature based on the current speed of the indoor fan and the indoor ambient temperature, the method further includes: When the indoor heat exchanger temperature is greater than the target heat exchanger temperature, the running time of the indoor fan at the current speed is obtained; When the runtime is greater than or equal to the target runtime, the steps of controlling the indoor fan of the air conditioner to increase its speed and / or 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 are executed.

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, wherein the air guide plate and the indoor fan are both connected to the control device, the control device comprising: a memory, a processor, and an air conditioner control program stored in the memory and executable on the processor, wherein 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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