Control method of air conditioner, air conditioner and storage medium

Abstract

The invention discloses a control method of an air conditioner, the air conditioner and a storage medium. The method comprises the steps that set parameters of the air outlet temperature of the air conditioner, the frequency upper limit value of a compressor in the air conditioner and the frequency lower limit value of the compressor are obtained; the target frequency of the compressor is determined according to the set parameters, the frequency upper limit value and the frequency lower limit value; and the compressor is controlled to operate at the target frequency. The air outlet temperature of the air conditioner can be matched with user requirements, and the air outlet comfort of the air conditioner is improved.

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 storage medium. Background Technology

[0002] Air conditioners release cooling or heating energy into the indoor space during operation to regulate the indoor environment.

[0003] Currently, air conditioners generally operate by controlling the compressor and fan according to the set temperature. The set temperature is the target value of the indoor ambient temperature. When the set temperature increases, the compressor's operating frequency and the fan speed will increase simultaneously. When the set temperature decreases, the compressor's operating frequency and the fan speed will decrease simultaneously. The outlet air temperature remains basically unchanged, which can easily cause the air conditioner's outlet air temperature to deviate from the user's comfort level. 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 storage medium, aiming to match the air outlet temperature of the air conditioner with user needs and improve the air outlet comfort 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] The set parameters for the air outlet temperature of the air conditioner, the upper limit value of the compressor frequency in the air conditioner, and the lower limit value of the compressor frequency are obtained.

[0007] The target frequency of the compressor is determined based on the set parameters, the upper frequency limit, and the lower frequency limit.

[0008] Control the compressor to operate at the target frequency.

[0009] Optionally, the step of determining the target frequency of the compressor based on the set parameters, the upper frequency limit, and the lower frequency limit includes:

[0010] The frequency adjustment amplitude is determined based on the difference between the upper frequency limit and the lower frequency limit, and the correction coefficient is determined based on the set parameters.

[0011] The target frequency adjustment value is obtained by correcting the frequency adjustment amplitude according to the correction coefficient.

[0012] The target frequency is determined based on the target frequency adjustment value and the lower frequency limit value.

[0013] Optionally, the step of determining the target frequency of the compressor based on the set parameters, the upper frequency limit, and the lower frequency limit further includes:

[0014] When the set parameter is the first preset parameter, the shutdown frequency is determined to be the target frequency;

[0015] When the set parameter is the second preset parameter, the lower limit value of the frequency is determined to be the target frequency;

[0016] When the set parameter is the third preset parameter, the upper limit of the frequency is determined to be the target frequency;

[0017] When the set parameter is greater than the second preset parameter and less than the third preset parameter, the steps of determining the frequency adjustment amplitude based on the difference between the upper frequency limit and the lower frequency limit, and determining the correction coefficient based on the set parameter are executed.

[0018] Wherein, the first preset parameter is less than the second preset parameter, and the second preset parameter is less than the third preset parameter.

[0019] Optionally, the step of obtaining the upper frequency limit value includes:

[0020] Obtain the outdoor ambient temperature and / or the current speed of the indoor fan of the air conditioner;

[0021] The upper limit of the frequency is determined based on the outdoor ambient temperature and / or the rotational speed.

[0022] Optionally, the step of determining the upper limit of the frequency based on the outdoor ambient temperature and / or the rotational speed includes:

[0023] The upper limit of the compressor's operating frequency is determined based on the outdoor ambient temperature;

[0024] The upper limit of frequency is determined based on the reference upper limit value and / or the rotational speed.

[0025] Optionally, the step of determining the upper limit of frequency based on the reference upper limit and / or the rotational speed includes:

[0026] When the rotational speed is greater than or equal to the preset rotational speed, the reference upper limit value is determined to be the frequency upper limit value;

[0027] When the rotational speed is less than the preset rotational speed, the upper limit value of the frequency is determined based on the rotational speed and the reference upper limit value, and the upper limit value of the frequency is positively correlated with the rotational speed.

[0028] Optionally, the step of determining the upper limit of the compressor operating frequency based on the outdoor ambient temperature includes:

[0029] When the outdoor ambient temperature is lower than the first preset ambient temperature, the first frequency is determined to be the reference upper limit value;

[0030] When the outdoor ambient temperature is greater than or equal to the first preset ambient temperature and less than the second preset ambient temperature, the second frequency is determined as the reference upper limit value;

[0031] When the outdoor ambient temperature is greater than or equal to the second preset ambient temperature, the third frequency is determined as the reference upper limit value;

[0032] Wherein, the first frequency is less than the second frequency, the second frequency is less than the third frequency, and the first preset ambient temperature is less than the second preset ambient temperature.

[0033] Optionally, after the step of controlling the compressor to operate at the target frequency, the method further includes:

[0034] If the air conditioner does not meet the first condition, return to the step of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor;

[0035] When the air conditioner meets the first condition, the temperature parameters of the indoor heat exchanger of the air conditioner are obtained, the frequency adjustment parameters of the compressor are determined based on the temperature parameters, and the frequency adjustment parameters of the compressor are controlled to adjust the frequency.

[0036] Optionally, the temperature parameter includes the current temperature of the indoor heat exchanger and the final temperature of the indoor heat exchanger when the air conditioner meets the first condition. The step of determining the frequency adjustment parameter of the compressor based on the temperature parameter includes:

[0037] The frequency adjustment parameters are determined based on the current temperature and the final temperature.

[0038] Optionally, the step of determining the frequency adjustment parameter based on the current temperature and the final temperature includes:

[0039] Determine the temperature difference between the current temperature and the final temperature;

[0040] The frequency adjustment parameters are determined based on the temperature difference value.

[0041] Optionally, when the air conditioner is in cooling mode, the step of determining the frequency adjustment parameter based on the temperature difference value includes:

[0042] When the temperature difference value is greater than the first preset threshold, the frequency increase is determined as the frequency adjustment direction of the compressor;

[0043] When the temperature difference is less than the second preset threshold, the frequency reduction is determined as the frequency adjustment direction of the compressor.

[0044] When the temperature difference is greater than or equal to the second preset threshold and less than or equal to the first preset threshold, the frequency adjustment direction of the compressor is determined to remain unchanged.

[0045] Wherein, the first preset threshold is greater than the second preset threshold, and the frequency adjustment parameter includes the frequency adjustment direction.

[0046] Optionally, when the air conditioner is in cooling mode, the step of determining the frequency adjustment parameter based on the temperature difference value further includes:

[0047] The frequency adjustment value of the compressor is determined based on the temperature difference value, and the frequency adjustment parameter includes the frequency adjustment value;

[0048] Specifically, when the temperature difference is greater than the first preset threshold, the frequency adjustment value is positively correlated with the temperature difference; when the temperature difference is less than the second preset threshold, the frequency adjustment value is negatively correlated with the temperature difference.

[0049] Optionally, when the air conditioner is in cooling mode, the step of determining the frequency adjustment parameter based on the temperature difference value further includes:

[0050] The frequency update cycle is determined based on the temperature difference value, and the frequency adjustment parameter includes the frequency update cycle;

[0051] Specifically, when the temperature difference is greater than the first preset threshold, the frequency update cycle is negatively correlated with the temperature difference; when the temperature difference is less than the second preset threshold, the frequency update cycle is positively correlated with the temperature difference.

[0052] Optionally, the control method of the air conditioner further includes: when the air conditioner starts a preset mode, performing the step of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor;

[0053] The first condition includes at least one of the following: the runtime of the preset mode is greater than or equal to the preset duration, and the temperature fluctuation amplitude of the indoor heat exchanger of the air conditioner is less than or equal to the preset value within the preset time period before the current moment.

[0054] Optionally, the control method for the air conditioner further includes:

[0055] When the air conditioner starts the preset mode, the steps of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor are executed.

[0056] In the preset mode, the air conditioner is in cooling mode.

[0057] Optionally, before the step of obtaining the set parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor, the method further includes:

[0058] When the air conditioner meets the second condition, control the air conditioner to start the preset mode;

[0059] The second condition includes: the air conditioner is in cooling mode and the air conditioner has its outlet temperature adjustment function turned on.

[0060] Optionally, the control method for the air conditioner further includes:

[0061] When the air conditioner starts the preset mode, the air conditioner is controlled to operate according to the newly set temperature, and / or the indoor fan of the air conditioner is controlled to operate at a speed less than or equal to the new minimum speed, and / or the air outlet assembly of the air conditioner is controlled to perform air sweeping operation;

[0062] Wherein, the newly set temperature is greater than the set temperature when the air conditioner is running in the cooling mode, and the new minimum speed is greater than the minimum speed of the indoor fan when the air conditioner is running in the cooling mode.

[0063] In addition, to achieve the above objectives, this application also proposes an air conditioner, the air conditioner 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.

[0064] In addition, to achieve the above objectives, this application also proposes a 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.

[0065] This invention proposes a control method for an air conditioner. This method combines the set parameters of the air conditioner's air outlet parameters with the upper and lower frequency limits of the compressor to determine the target operating frequency of the compressor. In this way, the set parameters can be set according to the user's required air outlet temperature. The compressor's operating frequency is no longer adjusted to adapt to the air conditioner's set temperature, but can be adjusted to adapt to the user's required air outlet temperature, thereby achieving adjustment of the air conditioner's air outlet temperature, ensuring that the air conditioner's air outlet temperature matches the user's needs, and improving the air outlet comfort of the air conditioner. Attached Figure Description

[0066] Figure 1 This is a schematic diagram of the hardware structure involved in the operation of an embodiment of the air conditioner of the present invention;

[0067] Figure 2 This is a flowchart illustrating an embodiment of the control method for an air conditioner according to the present invention;

[0068] Figure 3 This is a flowchart illustrating another embodiment of the control method for an air conditioner according to the present invention;

[0069] Figure 4 This is a flowchart illustrating another embodiment of the control method for an air conditioner according to the present invention;

[0070] Figure 5 This is a flowchart illustrating another embodiment of the control method for the air conditioner of the present invention.

[0071] 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

[0072] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0073] This invention provides an air conditioner. The air conditioner may include any type of air conditioner such as a wall-mounted air conditioner, window air conditioner, portable air conditioner, cabinet air conditioner, multi-split air conditioner, or ceiling-mounted air conditioner.

[0074] In this embodiment of the invention, reference is made to Figure 1 The air conditioner includes a control device 1 and a heat pump system 2. The heat pump system 2 is connected to the control device 1, and the control device 1 can be connected to the heat pump system 2.

[0075] The heat pump system 2 includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger, which are connected in sequence. One of the first and second heat exchangers is connected to the exhaust port of the compressor, and the other of the first and second heat exchangers is connected to the return port of the compressor. The heat pump system also includes a first fan and a second fan, with the first fan corresponding to the first heat exchanger and the second fan corresponding to the second heat exchanger.

[0076] In this embodiment, the first heat exchanger is located indoors, and the second heat exchanger is located outdoors; that is, the first fan is an indoor fan, and the second fan is an outdoor fan. In other embodiments, both the first and second heat exchangers can be located indoors.

[0077] When the compressor's exhaust port is connected to the first heat exchanger and the compressor's return port is connected to the second heat exchanger, the refrigerant discharged by the compressor flows sequentially through the first heat exchanger, the throttling device, and the second heat exchanger before returning to the compressor. The first heat exchanger is in an evaporating state, and the second heat exchanger is in a condensing state. The first heat exchanger releases cooling energy into its space, and the air conditioner is in a cooling state.

[0078] The air conditioner also includes a housing, an air outlet on the housing, and an air duct inside the housing that communicates with the air outlet. The first heat exchanger and the first fan are located inside the air duct.

[0079] Furthermore, the air conditioner also includes a temperature detection module 3, which is connected to the control device 1. The temperature detection module 3 is located in the outdoor environment and can be used to detect the outdoor ambient temperature.

[0080] Reference Figure 1 The control device 1 of the air conditioner includes: a processor 1001, such as a CPU, a memory 1002, and a timer 1003. These components communicate with each other via a communication bus. The memory 1002 can be a high-speed RAM or a stable, non-volatile memory, such as a disk storage device. Optionally, the memory 1002 can also be a storage device independent of the aforementioned processor 1001.

[0081] Those skilled in the art will understand that Figure 1 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.

[0082] like Figure 1 As shown, the memory 1002, which serves as a computer storage medium, may include a control program for an air conditioner.

[0083] exist Figure 1 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.

[0084] This invention also provides a control method for an air conditioner, applied to the aforementioned air conditioner.

[0085] Reference Figure 2 This application proposes an embodiment of a control method for an air conditioner. In this embodiment, the control method for the air conditioner includes:

[0086] Step S10: Obtain the set parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor;

[0087] The setting parameter for the air outlet temperature specifically represents the preset air outlet temperature of the air conditioner according to the user's needs. In this embodiment, the setting parameter includes the temperature range of the air outlet temperature. In other embodiments, the setting parameter may also include the set value of the air outlet temperature.

[0088] The setting parameters can be parameters determined based on configuration information input by the user, or parameters preset by the air conditioner, or parameters obtained by analyzing the user's state within the air conditioner's regulated space. In this embodiment, the set air outlet temperature represented by the setting parameters is negatively correlated with the setting parameters themselves; that is, the smaller the setting parameters, the higher the set air outlet temperature. In other embodiments, the set air outlet temperature represented by the setting parameters may also be positively correlated with the setting parameters or may not have a significant correlation.

[0089] The upper frequency limit is the maximum frequency value that the compressor can reach during operation, and the lower frequency limit is the minimum frequency value that the compressor can reach during operation.

[0090] The upper and / or lower frequency limits can be preset fixed values ​​or values ​​determined based on the actual operating conditions of the air conditioner.

[0091] In this embodiment, step S10 can be executed when the air conditioner starts in a preset mode. Alternatively, step S10 can be executed when the air conditioner is powered on.

[0092] Step S20: Determine the target frequency of the compressor based on the set parameters, the upper frequency limit, and the lower frequency limit.

[0093] In this embodiment, a pre-established correspondence between preset parameters, upper frequency limit, lower frequency limit, and target frequency can be established. This correspondence may include calculation formulas, mapping relationships, machine learning models, etc. Based on this correspondence, the target frequency of the compressor corresponding to the current preset parameters, upper frequency limit, and lower frequency limit can be determined. In this embodiment, the target frequency is positively correlated with the preset outlet air temperature represented by the preset parameters.

[0094] In one implementation, a correction coefficient is determined based on set parameters; a frequency adjustment amplitude is determined based on the difference between the upper and lower frequency limits; the frequency adjustment amplitude is adjusted based on the correction coefficient to obtain the target frequency adjustment value; and the target frequency is determined based on the target frequency adjustment value and the lower frequency limit, or based on the target frequency adjustment value and the upper frequency limit. In another implementation, the average of the upper and lower frequency limits is determined; the target frequency is determined based on the set parameters and the average value.

[0095] Step S30: Control the compressor to operate at the target frequency.

[0096] While the compressor is running at the target frequency, the indoor fan of the air conditioner can operate at a preset speed, or the indoor fan can operate at a speed set by the user, or the indoor fan can operate at a speed determined by the set temperature of the air conditioner (that is, the target ambient temperature of the indoor space regulated by the air conditioner), and so on.

[0097] This invention proposes a control method for an air conditioner. This method combines the set parameters of the air conditioner's air outlet parameters with the upper and lower frequency limits of the compressor to determine the target operating frequency of the compressor. In this way, the set parameters can be set according to the user's required air outlet temperature. The compressor's operating frequency is no longer adjusted to adapt to the air conditioner's set temperature, but can be adjusted to adapt to the user's required air outlet temperature, thereby achieving adjustment of the air conditioner's air outlet temperature, ensuring that the air conditioner's air outlet temperature matches the user's needs, and improving the air outlet comfort of the air conditioner.

[0098] Furthermore, in this embodiment, the control method of the air conditioner further includes: when the air conditioner starts a preset mode, performing the step of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor; wherein, in the preset mode, the air conditioner is in a cooling state.

[0099] When the air conditioner is in cooling mode, the indoor heat exchanger is in evaporation mode, releasing cooling energy into the indoor space.

[0100] In this embodiment, when the air conditioner starts the preset mode, the compressor is controlled to operate in the manner described above, which helps to avoid excessively low air outlet temperature, reduce the risk of air conditioning condensation, and improve the air outlet comfort of the air conditioner.

[0101] In other embodiments, when the air conditioner is in heating mode, the compressor can also be controlled to operate according to the above steps S10 to S30.

[0102] 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 3 The step of determining the target frequency of the compressor based on the set parameters, the upper frequency limit, and the lower frequency limit includes:

[0103] Step S21: Determine the frequency adjustment amplitude based on the difference between the upper frequency limit and the lower frequency limit, and determine the correction coefficient based on the set parameters;

[0104] In this embodiment, the difference between the upper frequency limit and the lower frequency limit is the frequency adjustment amplitude.

[0105] In this embodiment, a correction coefficient is determined based on the range of variation of the set parameter corresponding to the frequency adjustment amplitude. Specifically, this range refers to the range of variation of the set parameter for the allowable outlet air temperature when the compressor frequency varies between an upper and lower frequency limit. This range may include a set of preset values ​​allowed by the set parameter. In this embodiment, a preset value corresponding to the lower frequency limit within the range is determined, and the correction coefficient is determined based on the relationship between the set parameter and the preset value.

[0106] Step S22: Correct the frequency adjustment amplitude according to the correction coefficient to obtain the target frequency adjustment value;

[0107] In this embodiment, the correction factor includes a correction ratio, and the product of the correction ratio and the frequency adjustment amplitude is used as the target frequency adjustment value. In other embodiments, the correction factor may also include a correction amplitude, and the sum of the frequency adjustment amplitude and the correction amplitude is used as the target frequency adjustment value.

[0108] Step S23: Determine the target frequency based on the target frequency adjustment value and the lower limit value of the frequency.

[0109] In this embodiment, the target frequency adjustment value includes the target frequency adjustment amplitude, and the sum of the lower frequency limit and the target frequency adjustment value is used as the target frequency. In other embodiments, the target frequency adjustment value also includes the target frequency adjustment ratio, and the product of the target frequency adjustment ratio and the target frequency adjustment value is used as the target frequency.

[0110] In this embodiment, it is beneficial to improve the accuracy of the match between the target frequency and the user's required air outlet temperature represented by the set parameters, thereby further improving the comfort of the air conditioning outlet.

[0111] Furthermore, in this embodiment, the step of determining the target frequency of the compressor based on the set parameter, the upper frequency limit, and the lower frequency limit further includes: when the set parameter is a first preset parameter, determining the shutdown frequency as the target frequency; when the set parameter is a second preset parameter, determining the lower frequency limit as the target frequency; when the set parameter is a third preset parameter, determining the upper frequency limit as the target frequency; when the set parameter is greater than the second preset parameter and less than the third preset parameter, performing the step of determining the frequency adjustment amplitude based on the difference between the upper frequency limit and the lower frequency limit, and determining the correction coefficient based on the set parameter; wherein, the first preset parameter is less than the second preset parameter, and the second preset parameter is less than the third preset parameter.

[0112] Among them, when the set parameter is greater than the second preset parameter and less than the third preset parameter, the target frequency is greater than the lower frequency limit and less than the upper frequency limit.

[0113] In this embodiment, when the air conditioner is currently in cooling mode, the set air outlet temperature represented by the set parameter is negatively correlated with the set parameter.

[0114] The shutdown frequency here is specifically 0, meaning the compressor stops. When the target frequency is the shutdown frequency, controlling the compressor to stop allows the indoor fan of the air conditioner to maintain airflow. This airflow mode can include swing or directional airflow.

[0115] In this embodiment, the first preset parameter, the second preset parameter, and the third preset parameter can be fixed parameters that are set in advance. In other embodiments, the first preset parameter, the second preset parameter, and the third preset parameter can also be determined based on the set temperature of the air conditioner (i.e., the target ambient temperature of the space regulated by the air conditioner) and / or the current temperature of the space regulated by the air conditioner.

[0116] In this embodiment, by means of the above method, it can be ensured that the higher the set air outlet temperature required by the user's comfort needs, the lower the cooling capacity of the compressor, and the lower the set air outlet temperature required by the user's comfort needs, the higher the cooling output capacity of the compressor. This further ensures that the air outlet temperature of the air conditioner can be accurately matched with the user's comfort needs, thereby further improving the air outlet comfort of the air conditioner.

[0117] 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 The steps for obtaining the upper frequency limit include:

[0118] Step S11: Obtain the outdoor ambient temperature and / or the current rotation speed of the indoor fan of the air conditioner;

[0119] The outdoor ambient temperature is specifically the current outdoor ambient temperature corresponding to the indoor space regulated by the air conditioner.

[0120] Step S12: Determine the upper limit of the frequency based on the outdoor ambient temperature and / or the rotation speed.

[0121] Different rotational speeds and / or different outdoor ambient temperatures correspond to different upper frequency limits. In this embodiment, when the air conditioner is in cooling mode, the upper frequency limit is positively correlated with the rotational speed and the outdoor ambient temperature.

[0122] The correspondence between rotational speed, outdoor ambient temperature, and upper frequency limit can be preset. This correspondence can include calculation formulas, mapping relationships, etc. Based on this correspondence, the upper frequency limit corresponding to the current rotational speed and outdoor ambient temperature can be determined.

[0123] In this embodiment, the upper limit of the compressor frequency is determined by the outdoor ambient temperature and / or the indoor fan speed. This helps to ensure that the outlet air temperature matches comfort requirements while further improving the efficiency of indoor temperature regulation. Specifically, when the air conditioner is currently in cooling mode, determining the upper limit of the frequency by combining the outdoor ambient temperature and the indoor fan speed helps to ensure that condensation does not occur at the air outlet of the air conditioner while maximizing the heat exchange output capacity of the air conditioner, thus achieving anti-condensation and improving the efficiency of indoor temperature regulation.

[0124] Furthermore, in this embodiment, the step of determining the upper limit value of the frequency based on the outdoor ambient temperature and / or the rotational speed includes: determining a reference upper limit value of the compressor operating frequency based on the outdoor ambient temperature; and determining the upper limit value of the frequency based on the reference upper limit value and / or the rotational speed.

[0125] Different outdoor ambient temperatures correspond to different upper limit values. In this embodiment, when the air conditioner is in cooling mode, the outdoor ambient temperature is positively correlated with the upper limit value.

[0126] Specifically, the temperature range of the outdoor ambient temperature can be determined, and a baseline upper limit value can be determined based on the temperature range. Alternatively, the outdoor ambient temperature can be substituted into a preset formula to calculate the baseline upper limit value. In this embodiment, the step of determining the baseline upper limit value of the compressor operating frequency based on the outdoor ambient temperature includes: when the outdoor ambient temperature is less than a first preset ambient temperature, determining a first frequency as the baseline upper limit value; when the outdoor ambient temperature is greater than or equal to the first preset ambient temperature and less than a second preset ambient temperature, determining a second frequency as the baseline upper limit value; when the outdoor ambient temperature is greater than or equal to the second preset ambient temperature, determining a third frequency as the baseline upper limit value; wherein, the first frequency is less than the second frequency, the second frequency is less than the third frequency, and the first preset ambient temperature is less than the second preset ambient temperature.

[0127] Different rotational speeds and / or different reference upper limit values ​​correspond to different frequency upper limit values. In this embodiment, the rotational speed and the frequency upper limit value are positively correlated. Specifically, the rotational speed range can be determined, a frequency correction value can be determined based on the rotational speed range, and the reference upper limit value can be corrected based on the frequency correction value to obtain the frequency upper limit value. Alternatively, the rotational speed and the reference upper limit value can be substituted into a preset formula to calculate the frequency upper limit value.

[0128] In this embodiment, determining the upper limit of the frequency in the above manner helps to further improve the accuracy of the target frequency, thereby ensuring the comfort of the air conditioner while improving the efficiency of indoor temperature regulation.

[0129] Furthermore, in this embodiment, the step of determining the upper limit value of the frequency based on the reference upper limit value and the rotational speed includes: when the rotational speed is greater than or equal to a preset rotational speed, determining the reference upper limit value as the upper limit value of the frequency; when the rotational speed is less than the preset rotational speed, determining the upper limit value of the frequency based on the rotational speed and the reference upper limit value, wherein the upper limit value of the frequency is positively correlated with the rotational speed.

[0130] In this embodiment, the upper limit of frequency is linearly positively correlated with the rotational speed. In other embodiments, the upper limit of frequency and rotational speed may also have other types of correlation, such as an exponential positive correlation.

[0131] The preset speed can be a fixed speed set in advance, or it can be a preset speed determined based on the indoor ambient temperature and the air conditioner outlet temperature when the preset mode is started (mentioned later), etc. In this embodiment, the preset speed is 80% of the maximum speed.

[0132] The upper limit of the frequency when the rotational speed is less than the preset rotational speed is less than the reference upper limit.

[0133] When the rotational speed is lower than the preset speed, an adjustment coefficient can be determined based on the rotational speed. The upper frequency limit is then obtained based on the adjustment coefficient and the reference upper limit value. In this embodiment, the difference between the reference upper limit value and the reference frequency is determined. The target adjustment value of the compressor frequency is determined based on the adjustment coefficient and the difference. The upper frequency limit is obtained by adjusting the reference frequency according to the target adjustment value.

[0134] In this embodiment, when the fan speed is high, using the baseline upper limit as the frequency upper limit helps ensure the efficiency of indoor temperature regulation. When the fan speed is not high, the frequency upper limit is determined by combining the fan speed and the baseline upper limit, which helps ensure both the comfort of the air conditioner's outlet temperature and the efficiency of indoor temperature regulation. Furthermore, when the air conditioner is in cooling mode, this helps reduce the risk of condensation at the air outlet while maximizing the air conditioner's cooling capacity.

[0135] Furthermore, based on any of the above embodiments, another embodiment of the control method for the air conditioner of this application is proposed. (Refer to...) Figure 5 After the step of controlling the compressor to operate at the target frequency, the method further includes:

[0136] If the air conditioner does not meet the first condition, return to the step of obtaining the set parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor; if the air conditioner meets the first condition, execute step S40.

[0137] The first condition here specifically refers to the condition that the air conditioner's own state parameters and / or the environmental parameters of the environment in which the air conditioner is located must meet when the air outlet temperature and / or indoor temperature reach a stable state.

[0138] Step S40: Obtain the temperature parameters of the indoor heat exchanger of the air conditioner;

[0139] Temperature parameters may include at least one of the following: the current temperature of the indoor heat exchanger, the temperature change parameters of the indoor heat exchanger, the temperature of the indoor heat exchanger at different times, etc.

[0140] Step S50: Determine the frequency adjustment parameters of the compressor based on the temperature parameters;

[0141] Frequency adjustment parameters include at least one of the following: frequency adjustment direction, frequency adjustment amplitude, frequency adjustment rate, frequency update cycle, etc.

[0142] Different temperature parameters correspond to different frequency adjustment parameters. Specifically, the correspondence between temperature parameters and frequency adjustment parameters can be preset. This correspondence can include calculation formulas, mapping relationships, etc. Based on this correspondence, the frequency adjustment parameter corresponding to the current temperature parameter can be determined.

[0143] For example, when the temperature parameter includes the current temperature of the indoor heat exchanger, the frequency adjustment parameter can be determined based on the temperature range in which the current temperature falls; or, when the temperature parameter includes at least two temperatures detected by the indoor heat exchanger at different times, the frequency adjustment parameter can be determined based on the relationship between the at least two temperatures (quantitative relationship or magnitude relationship, etc.), or the temperature range in which each temperature falls can be determined and the frequency adjustment parameter can be determined based on the at least two temperature ranges.

[0144] Step S60: Control the compressor to adjust its frequency according to the frequency adjustment parameters.

[0145] When the frequency adjustment parameter includes the frequency adjustment direction, if the frequency adjustment direction is to increase the frequency, the compressor is controlled to increase the frequency; if the frequency adjustment direction is to decrease the frequency, the compressor is controlled to decrease the frequency; if the frequency adjustment direction is to maintain the frequency, the compressor is controlled to maintain the current frequency.

[0146] When the frequency adjustment parameter includes the frequency adjustment amplitude, the compressor is controlled to increase or decrease the frequency according to the frequency adjustment amplitude.

[0147] When the frequency adjustment parameter includes a frequency update cycle, the compressor frequency is adjusted, and then the process returns to step S40 after the frequency update cycle. Here, the frequency update cycle specifically refers to the interval between two consecutive compressor frequency adjustments.

[0148] In this embodiment, controlling the compressor to operate according to steps S10 to S30 in the initial stage is beneficial for quickly adjusting the indoor temperature to the user's comfort level, and for quickly responding to user needs when the air outlet temperature setting parameters are adjusted, so as to further improve the air outlet comfort of the air conditioner and the user's comfort in the environment; in the subsequent stage, the compressor frequency is adjusted according to the temperature parameters of the indoor heat exchanger, which is beneficial for the air outlet temperature and indoor temperature under the action of the air conditioner to be stably and accurately matched with the user's comfort level.

[0149] Furthermore, in this embodiment, the control method of the air conditioner further includes: when the air conditioner starts a preset mode, executing the step of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor; the first condition includes at least one of the following: the running length of the preset mode is greater than or equal to the preset duration, and the temperature fluctuation amplitude of the indoor heat exchanger of the air conditioner is less than or equal to the preset value within the preset time period before the current moment.

[0150] The temperature fluctuation amplitude here is the difference between the maximum temperature and the minimum temperature of the indoor heat exchanger detected within a preset time period.

[0151] The preset value is used to distinguish whether the temperature of the indoor heat exchanger has reached a stable state.

[0152] The duration of the preset time period is less than the preset duration.

[0153] In the preset mode of the air conditioner, the temperature of the indoor heat exchanger can be detected at set intervals, where the set interval is shorter than the preset time period. When the running length of the preset mode is greater than or equal to the preset time period, the temperature fluctuation value of the indoor heat exchanger within that time period is determined based on the temperatures of all indoor heat exchangers continuously detected within the preset time period before the current moment. If the temperature fluctuation value is less than or equal to the preset value, the first condition is met; if the temperature fluctuation value is greater than the preset value, the process returns to the step of determining the temperature fluctuation value of the indoor heat exchanger within that time period after a set interval.

[0154] For example, after the air conditioner starts the preset mode, it checks the temperature of the indoor heat exchanger every minute (set unit time). When the preset mode runs for 20 minutes (preset duration), it obtains the indoor heat exchanger temperature within the 10 minutes before the current time (preset time period). The difference between the maximum and minimum values ​​of all the obtained indoor heat exchanger temperatures is used as the temperature fluctuation value. If the temperature fluctuation value is less than or equal to the preset value, it can be considered that the first condition is met; if the temperature fluctuation value is greater than the preset value, it can be considered that the first condition is not met.

[0155] In this embodiment, the above method helps to ensure that the air outlet temperature is quickly adjusted to a stable and comfortable state by the air conditioner in the initial stage before entering the subsequent temperature maintenance stage, which helps to further improve the air outlet comfort of the air conditioner.

[0156] Furthermore, in this embodiment, the temperature parameter includes the current temperature of the indoor heat exchanger and the final temperature of the indoor heat exchanger when the air conditioner meets the first condition. The step of determining the compressor frequency adjustment parameter based on the temperature parameter includes: determining the frequency adjustment parameter based on the current temperature and the final temperature.

[0157] Here, the initial moment when the air conditioner meets the first condition is designated as the first moment, and the moment before the first moment, with a set time interval, is designated as the second moment. The final temperature is determined based on the temperatures of at least two indoor heat exchangers detected between the second moment and the first moment. In this embodiment, the average of the temperatures of at least two indoor heat exchangers is used as the final temperature. In other embodiments, the maximum value of the temperatures of at least two indoor heat exchangers may also be used as the final temperature.

[0158] In this embodiment, the frequency adjustment parameter can be determined based on the magnitude or quantity relationship between the current temperature and the final temperature.

[0159] In this embodiment, the temperature difference between the current temperature and the final temperature is determined, and the frequency adjustment parameter is determined based on the temperature difference. In other embodiments, the magnitude relationship between the current temperature and the final temperature can be determined, and the frequency adjustment parameter can be determined based on this relationship.

[0160] In this embodiment, the above method helps to ensure that the indoor temperature and / or the air conditioner outlet temperature can be stabilized in the later stage to meet the user comfort requirements at the end of the previous stage, thereby further improving the indoor user comfort under the action of the air conditioner.

[0161] Furthermore, in this embodiment, the step of determining the frequency adjustment parameter based on the temperature difference value includes: when the temperature difference value is greater than a first preset threshold, determining that increasing the frequency is the frequency adjustment direction of the compressor; when the temperature difference value is less than a second preset threshold, determining that decreasing the frequency is the frequency adjustment direction of the compressor; when the temperature difference value is greater than or equal to the second preset threshold and less than or equal to the first preset threshold, determining that maintaining the frequency unchanged is the frequency adjustment direction of the compressor; wherein, the first preset threshold is greater than the second preset threshold, and the frequency adjustment parameter includes the frequency adjustment direction. Here, the frequency adjustment value during the process of adjusting the compressor's operating frequency according to the frequency adjustment direction can be a pre-set fixed value or a value determined based on the actual operating conditions of the air conditioner. In this embodiment, the first preset threshold is greater than 0, and the second preset threshold is less than or equal to 0.

[0162] In this embodiment, by means of the above method, the indoor temperature and / or the air outlet temperature can be kept stable at a level that is comfortable for the user when the air conditioner is in cooling mode.

[0163] Furthermore, in this embodiment, when the air conditioner is in cooling mode, the step of determining the frequency adjustment parameter based on the temperature difference value further includes: wherein, when the temperature difference value is greater than the first preset threshold, the frequency adjustment value is positively correlated with the temperature difference value; and when the temperature difference value is less than the second preset threshold, the frequency adjustment value is negatively correlated with the temperature difference value. And / or, the step of determining the frequency adjustment parameter based on the temperature difference value further includes: determining a frequency update cycle based on the temperature difference value, wherein the frequency adjustment parameter includes the frequency update cycle; wherein, when the temperature difference value is greater than the first preset threshold, the frequency update cycle is negatively correlated with the temperature difference value; and when the temperature difference value is less than the second preset threshold, the frequency update cycle is positively correlated with the temperature difference value.

[0164] It should be noted that the specific order of execution between the steps of determining the frequency adjustment value and / or determining the frequency update cycle and the steps of determining the frequency adjustment direction mentioned above is not limited.

[0165] In this embodiment, the temperature difference range within which the temperature difference value lies is determined, and the frequency adjustment value and frequency update cycle are determined based on the temperature difference range. In other embodiments, the frequency adjustment value and / or frequency update cycle can also be calculated by substituting the temperature difference value into a preset formula.

[0166] In this embodiment, the above method helps to further prevent the outlet air temperature and / or indoor temperature from deviating from the user's comfort state, thereby further improving the indoor user comfort during the air conditioner's cooling process.

[0167] To better understand the scheme in this embodiment, T2 is defined as the current temperature of the indoor heat exchanger, and T2_ave is the final temperature of the indoor heat exchanger. The following example illustrates the relationship between the temperature difference value and the frequency adjustment parameter in this embodiment:

[0168] 1) When T2-T2_ave>+2.5℃, the actual operating frequency Fr increases by 2Hz every 60 seconds;

[0169] 2) When 2.5 ≥ T2 - T2_ave > 1.5℃, the actual operating frequency Fr increases by 1 Hz every 90 seconds;

[0170] 3) When 1.5 ≥ T2 - T2_ave > 0.5℃, the actual operating frequency Fr increases by 0.5 Hz every 90 seconds;

[0171] 4) When 0.5≥T2-T2_ave≥-0.5℃, the actual operating frequency Fr value is not processed, and the operating frequency is updated after an interval of 180 seconds;

[0172] 5) When -0.5 > T2 - T2_ave ≥ -1.5℃, the actual operating frequency Fr decreases by 0.5 Hz every 90 seconds.

[0173] 6) When -1.5 > T2 - T2_ave ≥ -2.5℃, the actual operating frequency Fr decreases by 1 Hz every 90 seconds;

[0174] 7) When T2-T2_ave<-2.5℃, the actual operating frequency Fr decreases by 2Hz every 60 seconds.

[0175] Here, 0.5℃ is the first preset threshold mentioned above, and -0.5℃ is the second preset threshold mentioned above. The time interval is the frequency update cycle mentioned above, and the increasing or decreasing frequency value is the frequency adjustment value mentioned above.

[0176] Furthermore, based on any of the above embodiments, in this embodiment, before the step of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor, the method further includes: when the air conditioner meets a second condition, controlling the air conditioner to start the preset mode; wherein, the second condition includes: the air conditioner is in cooling mode and the air conditioner has a preset function enabled.

[0177] In this embodiment, the preset function is the outlet air temperature adjustment function. When the preset function is off in cooling mode, the air conditioner operates with the goal of achieving the set indoor temperature, and the compressor operation can be controlled based on the set temperature and the indoor ambient temperature. In preset mode, the air conditioner operates with the goal of achieving the set outlet air temperature corresponding to the set parameters.

[0178] The air outlet temperature adjustment function here can be turned on or off by the user according to their own needs.

[0179] In this embodiment, the above method helps to ensure that when the user has a need to adjust the air outlet temperature during the air conditioning cooling process, the compressor is controlled to operate according to steps S10 to S30 or steps S10 to S60, thereby ensuring that the air outlet temperature of the air conditioner can be accurately matched with the user's needs and improving the air outlet comfort of the air conditioner during the cooling process.

[0180] Furthermore, in this embodiment, the control method of the air conditioner further includes: when the air conditioner starts the preset mode, controlling the operation of the air conditioner according to the newly set temperature, and / or controlling the indoor fan of the air conditioner to operate at a speed less than or equal to the new minimum speed, and / or controlling the air outlet assembly of the air conditioner to perform air sweeping operation, wherein the newly set temperature is greater than the set temperature when the air conditioner is operating the cooling mode, and the new minimum speed is greater than the minimum speed of the indoor fan when the air conditioner is operating the cooling mode.

[0181] In this embodiment, the new set temperature can be obtained by increasing the preset adjustment value. When the air conditioner is controlled to run according to the new set temperature, the compressor can be controlled to stop when the temperature difference between the new set temperature and the ambient temperature of the space regulated by the air conditioner is less than the preset temperature difference; the compressor can be controlled to start or remain on when the temperature difference between the new set temperature and the ambient temperature of the space regulated by the air conditioner is greater than or equal to the preset temperature difference. Alternatively, the operating speed of the indoor fan of the air conditioner can be controlled according to the new set temperature.

[0182] In this embodiment, when the preset mode is activated, the indoor fan can operate at a preset speed (e.g., 60% of the maximum speed). When the user's wind speed adjustment command is received, the indoor fan is controlled to operate according to the target speed corresponding to the wind speed adjustment command.

[0183] In this embodiment, after activating the preset mode, the air outlet components (such as upper and lower air guides and / or left and right air guides) of the air conditioner can also be controlled to perform air sweeping. Upon receiving a user's airflow direction adjustment command, the air outlet components are controlled to stop sweeping or direct airflow according to the airflow direction adjustment command.

[0184] It should be noted that the execution order of the steps of controlling the air conditioner operation process based on the set temperature, the new minimum speed, and the air sweep operation is not specifically limited to the compressor operating frequency control steps S10 to S30 and S40 to S60 mentioned above.

[0185] In this embodiment, the above method facilitates a rapid increase in the air outlet temperature of the air conditioner after entering the preset mode, thereby effectively ensuring the comfort of the air outlet during the air conditioning cooling process.

[0186] Furthermore, this embodiment of the invention also proposes a storage medium storing a control program for an air conditioner. When the control program for the air conditioner is executed by a processor, it implements the relevant steps of any embodiment of the control method for the air conditioner described above.

[0187] The storage medium proposed in this embodiment determines the target operating frequency of the compressor by combining the set parameters of the air conditioner's air outlet parameters with the upper and lower frequency limits of the compressor. In this way, the set parameters can be set according to the user's required air outlet temperature. The compressor's operating frequency is no longer adjusted to adapt to the air conditioner's set temperature, but can be adjusted to adapt to the user's required air outlet temperature, thereby achieving adjustment of the air conditioner's air outlet temperature, ensuring that the air conditioner's air outlet temperature matches the user's needs, and improving the air outlet comfort of the air conditioner.

[0188] 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.

[0189] 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.

[0190] 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.

[0191] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection 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: The set parameters for the air outlet temperature of the air conditioner, the upper limit value of the compressor frequency in the air conditioner, and the lower limit value of the compressor frequency are obtained. The target frequency of the compressor is determined based on the set parameters, the upper frequency limit, and the lower frequency limit. Control the compressor to operate at the target frequency.

2. The control method for an air conditioner as described in claim 1, characterized in that, The step of determining the target frequency of the compressor based on the set parameters, the upper frequency limit, and the lower frequency limit includes: The frequency adjustment amplitude is determined based on the difference between the upper frequency limit and the lower frequency limit, and the correction coefficient is determined based on the set parameters. The target frequency adjustment value is obtained by correcting the frequency adjustment amplitude according to the correction coefficient. The target frequency is determined based on the target frequency adjustment value and the lower frequency limit value.

3. The control method for an air conditioner as described in claim 2, characterized in that, The step of determining the target frequency of the compressor based on the set parameters, the upper frequency limit, and the lower frequency limit further includes: When the set parameter is the first preset parameter, the shutdown frequency is determined to be the target frequency; and / or, When the set parameter is the second preset parameter, the lower frequency limit is determined to be the target frequency; and / or, When the set parameter is the third preset parameter, the upper frequency limit is determined to be the target frequency; and / or, When the set parameter is greater than the second preset parameter and less than the third preset parameter, the steps of determining the frequency adjustment amplitude based on the difference between the upper frequency limit and the lower frequency limit, and determining the correction coefficient based on the set parameter are executed. Wherein, the first preset parameter is less than the second preset parameter, and the second preset parameter is less than the third preset parameter.

4. The control method for an air conditioner as described in claim 1, characterized in that, The steps for obtaining the upper frequency limit include: Obtain the outdoor ambient temperature and / or the current speed of the indoor fan of the air conditioner; The upper limit of the frequency is determined based on the outdoor ambient temperature and / or the rotational speed.

5. The control method for an air conditioner as described in claim 4, characterized in that, The step of determining the upper limit value of the frequency based on the outdoor ambient temperature and / or the rotation speed includes: The upper limit of the compressor's operating frequency is determined based on the outdoor ambient temperature. The upper limit of frequency is determined based on the reference upper limit value and / or the rotational speed.

6. The control method for an air conditioner as described in claim 5, characterized in that, The step of determining the upper limit value of the frequency based on the reference upper limit value and / or the rotational speed includes: When the rotational speed is greater than or equal to the preset rotational speed, the reference upper limit value is determined to be the frequency upper limit value; When the rotational speed is less than the preset rotational speed, the upper limit value of the frequency is determined based on the rotational speed and the reference upper limit value, and the upper limit value of the frequency is positively correlated with the rotational speed.

7. The control method for an air conditioner as described in claim 5, characterized in that, The step of determining the upper limit of the compressor operating frequency based on the outdoor ambient temperature includes: When the outdoor ambient temperature is lower than the first preset ambient temperature, the first frequency is determined to be the reference upper limit value; When the outdoor ambient temperature is greater than or equal to the first preset ambient temperature and less than the second preset ambient temperature, the second frequency is determined as the reference upper limit value; When the outdoor ambient temperature is greater than or equal to the second preset ambient temperature, the third frequency is determined as the reference upper limit value; Wherein, the first frequency is less than the second frequency, the second frequency is less than the third frequency, and the first preset ambient temperature is less than the second preset ambient temperature.

8. The control method for an air conditioner as described in claim 1, characterized in that, Following the step of controlling the compressor to operate at the target frequency, the method further includes: If the air conditioner does not meet the first condition, return to the step of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor; When the air conditioner meets the first condition, the temperature parameters of the indoor heat exchanger of the air conditioner are obtained, the frequency adjustment parameters of the compressor are determined based on the temperature parameters, and the frequency adjustment parameters of the compressor are controlled to adjust the frequency.

9. The control method for an air conditioner as described in claim 8, characterized in that, The temperature parameter includes the current temperature of the indoor heat exchanger and the final temperature of the indoor heat exchanger when the air conditioner meets the first condition. The step of determining the frequency adjustment parameter of the compressor based on the temperature parameter includes: The frequency adjustment parameters are determined based on the current temperature and the final temperature.

10. The control method for an air conditioner as described in claim 9, characterized in that, The step of determining the frequency adjustment parameter based on the current temperature and the final temperature includes: Determine the temperature difference between the current temperature and the final temperature; The frequency adjustment parameters are determined based on the temperature difference value.

11. The control method for an air conditioner as described in claim 10, characterized in that, When the air conditioner is in cooling mode, the step of determining the frequency adjustment parameter based on the temperature difference value includes: When the temperature difference value is greater than the first preset threshold, the frequency increase is determined as the frequency adjustment direction of the compressor; When the temperature difference is less than the second preset threshold, the frequency reduction is determined as the frequency adjustment direction of the compressor. When the temperature difference is greater than or equal to the second preset threshold and less than or equal to the first preset threshold, the frequency adjustment direction of the compressor is determined to remain unchanged. Wherein, the first preset threshold is greater than the second preset threshold, and the frequency adjustment parameter includes the frequency adjustment direction.

12. The control method for an air conditioner as described in claim 11, characterized in that, When the air conditioner is in cooling mode, the step of determining the frequency adjustment parameter based on the temperature difference value further includes: The frequency adjustment value of the compressor is determined based on the temperature difference value, and the frequency adjustment parameter includes the frequency adjustment value; Specifically, when the temperature difference is greater than the first preset threshold, the frequency adjustment value is positively correlated with the temperature difference; when the temperature difference is less than the second preset threshold, the frequency adjustment value is negatively correlated with the temperature difference.

13. The control method for an air conditioner as described in claim 11, characterized in that, When the air conditioner is in cooling mode, the step of determining the frequency adjustment parameter based on the temperature difference value further includes: The frequency update cycle is determined based on the temperature difference value, and the frequency adjustment parameter includes the frequency update cycle; Specifically, when the temperature difference is greater than the first preset threshold, the frequency update cycle is negatively correlated with the temperature difference; when the temperature difference is less than the second preset threshold, the frequency update cycle is positively correlated with the temperature difference.

14. The control method for an air conditioner as described in claim 8, characterized in that, The control method for the air conditioner further includes: when the air conditioner starts a preset mode, executing the steps of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor; The first condition includes at least one of the following: the runtime of the preset mode is greater than or equal to the preset duration, and the temperature fluctuation amplitude of the indoor heat exchanger of the air conditioner is less than or equal to the preset value within the preset time period before the current moment.

15. The control method for an air conditioner as described in any one of claims 1 to 14, characterized in that, The control method for the air conditioner also includes: When the air conditioner starts the preset mode, the steps of obtaining the setting parameters of the air outlet temperature of the air conditioner, the upper limit value of the frequency of the compressor in the air conditioner, and the lower limit value of the frequency of the compressor are executed. In the preset mode, the air conditioner is in cooling mode.

16. The control method for an air conditioner as described in claim 15, characterized in that, Before the steps of obtaining the set parameters of the air outlet temperature of the air conditioner, the upper limit value of the compressor frequency in the air conditioner, and the lower limit value of the compressor frequency, the method further includes: When the air conditioner meets the second condition, control the air conditioner to start the preset mode; The second condition includes: the air conditioner is in cooling mode and the air conditioner has its outlet temperature adjustment function turned on.

17. The control method for an air conditioner as described in claim 15, characterized in that, The control method for the air conditioner further includes: When the air conditioner starts the preset mode, the air conditioner is controlled to operate according to the newly set temperature, and / or the indoor fan of the air conditioner is controlled to operate at a speed less than or equal to the new minimum speed, and / or the air outlet assembly of the air conditioner is controlled to perform air sweeping operation; Wherein, the newly set temperature is greater than the set temperature when the air conditioner is running in the cooling mode, and the new minimum speed is greater than the minimum speed of the indoor fan when the air conditioner is running in the cooling mode.

18. An air conditioner, characterized in that, The air conditioner includes: a memory, a processor, and a control program for the air conditioner stored in the memory and executable on the processor. When the control program for the air conditioner is executed by the processor, it implements the steps of the control method for the air conditioner as described in any one of claims 1 to 17.

19. A storage medium, characterized in that, The storage medium stores a control program for an air conditioner, which, when executed by a processor, implements the steps of the air conditioner control method as described in any one of claims 1 to 17.

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