Control method of air conditioner and air conditioner

Abstract

The embodiment of the application discloses a kind of control method and air conditioner of air conditioner, belong to equipment control field.Therein, the control method of the air conditioner includes obtaining first local temperature and second local temperature;According to the first difference of first local temperature and set temperature and the second difference of second local temperature and set temperature, control air conditioner uses different air supply mode;When the first difference is less than the first temperature threshold value of pre-set and the second difference is less than the second temperature threshold value of pre-set, according to the third difference of the temperature average value of first local area and second local area and set temperature, at least one of the speed of indoor fan, the frequency of compressor and the opening of expansion valve is controlled.The embodiment of the application has the technical effect of improving the temperature regulating efficiency of air conditioner, reducing the fluctuation of indoor temperature, improving the use experience of air conditioner.

Description

Technical Field

[0001] This application relates to the field of equipment control, and more specifically, to a control method for an air conditioner and an air conditioner. Background Technology

[0002] As living standards improve, users have increasingly higher demands for air conditioner performance. Current air conditioners regulate indoor temperature by switching the compressor on and off to maintain the temperature near the user's set temperature. However, this method has limited precision in temperature regulation, resulting in large fluctuations in indoor temperature and a degraded user experience. Summary of the Invention

[0003] This application provides an air conditioner control method and an air conditioner to at least solve the technical problem of reduced user experience.

[0004] According to a first aspect of the embodiments of this application, a method for controlling an air conditioner is provided. The air conditioner includes an indoor fan, a compressor, an expansion valve, and an indoor heat exchanger. The expansion valve is used to regulate the refrigerant entering the indoor heat exchanger. The method includes:

[0005] Obtain the first local temperature of a first local area of ​​the space where the air conditioner is applied and the second local temperature of a second local area of ​​the space where the air conditioner is applied;

[0006] Based on the first difference between the first local temperature and the set temperature and the second difference between the second local temperature and the set temperature, the air conditioner is controlled to use different air supply methods to reduce the first difference and the second difference.

[0007] When the first difference is less than a preset first temperature threshold and the second difference is less than a preset second temperature threshold, at least one of the indoor fan speed, compressor frequency and expansion valve opening is controlled based on the third difference between the average temperature of the first local area and the second local area and the set temperature, until the third difference is within a preset first temperature range, wherein the maximum value of the first temperature range is less than the first temperature threshold and the second temperature threshold.

[0008] In this embodiment, different air supply methods and compressor frequencies are used to supply air, which helps improve the temperature regulation efficiency of the air conditioner. Simultaneously, the temperature difference between the space where the air conditioner operates and the set temperature is small. At this point, controlling at least one of the indoor fan, compressor, and expansion valve controls the output temperature of the air conditioner, ensuring that the third difference is within the first temperature range. This precise control of the third difference makes it easier to stabilize the temperature of the space where the air conditioner operates near the set temperature, reducing indoor temperature fluctuations and improving the user experience.

[0009] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the rotational speed, frequency, and opening degree each correspond to a preset value range;

[0010] Controlling at least one of the indoor fan speed, compressor frequency, and expansion valve opening includes:

[0011] The rotational speed, frequency, and opening degree are controlled one by one. When the controlled parameter reaches the limit value of its corresponding value range, the parameter among the rotational speed, frequency, and opening degree that has not reached the limit value is controlled. The limit value includes the maximum value and minimum value of the value range.

[0012] By adopting this implementation method, the rotation speed, frequency and opening degree are controlled one by one, which can easily improve the adjustment accuracy. This allows the third difference to be adjusted more precisely to the first temperature range, achieving precise control of the third difference. This makes it easier to stabilize the temperature of the space where the air conditioner is applied near the set temperature, reduce indoor temperature fluctuations, and improve the user experience of the air conditioner.

[0013] In conjunction with the first aspect, in an optional implementation of this application embodiment, the step of controlling the rotational speed, frequency, and opening degree one by one, and controlling the parameters among the rotational speed, frequency, and opening degree that have not reached the limit value when the controlled parameter reaches the limit value of its corresponding value range, includes:

[0014] When the air conditioner is cooling, if the third difference exceeds the maximum value of the first temperature range, the speed, frequency and opening degree are controlled one by one to increase. When the controlled parameter reaches the maximum value of its corresponding value range, the parameter among the speed, frequency and opening degree that has not reached the limit value is controlled.

[0015] And / or when the air conditioner is heating, if the third difference exceeds the minimum value of the first temperature range, the speed, frequency and opening degree are controlled to decrease one by one, and when the controlled parameter reaches the minimum value of its corresponding value range, the parameter among the speed, frequency and opening degree that has not reached the limit value is controlled.

[0016] By adopting this implementation method, the speed, frequency and opening direction of the air conditioner are adjusted differently when it is cooling and heating. This is conducive to efficiently adjusting the third difference to the first temperature range, achieving precise control of the third difference, and thus making it easier to stabilize the temperature of the space where the air conditioner is applied near the set temperature, reducing indoor temperature fluctuations and improving the user experience of the air conditioner.

[0017] In conjunction with the first aspect, in an optional implementation of this application embodiment, before controlling the parameters among the rotational speed, frequency, and opening degree that have not reached the limit value, the method further includes:

[0018] Determine whether the newly obtained third difference is within the first temperature range;

[0019] If so, the current state of the air conditioner is maintained, wherein the current state of the air conditioner includes the current speed, current frequency, and current opening degree;

[0020] Otherwise, the parameters that have not reached the limit among the speed, frequency, and opening degree will be controlled.

[0021] By adopting this implementation method, before controlling the parameters of speed, frequency and opening degree that have not reached the limit, it is first determined whether the newly obtained third difference is within the first temperature range. If it is, the current state of the air conditioner is maintained, which helps to save energy and prolong the time when the third difference is within the first temperature range.

[0022] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the value range includes a first range corresponding to the rotational speed, a second range corresponding to the frequency, and a third range corresponding to the opening degree;

[0023] The step of controlling the rotational speed, frequency, and opening degree one by one includes:

[0024] The rotational speed is controlled to change according to a preset first adjustment value. When the adjusted rotational speed reaches the limit of the first interval, the indoor fan is kept running at the current rotational speed and the frequency is controlled to change according to a preset second adjustment value. When the adjusted frequency reaches the limit of the second interval, the compressor is kept running at the current frequency and the opening degree is controlled to change according to a preset third adjustment value. When the adjusted opening degree reaches the limit of the third interval, the compressor is stopped, the indoor fan is kept at the current rotational speed, the expansion valve is kept at the current opening degree, or the control phase is exited.

[0025] Using this method, the speed of the indoor fan is first adjusted, and then the opening of the expansion valve is adjusted, which helps to improve the efficiency of adjusting the third difference to the first temperature range.

[0026] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the air conditioner includes an upper air outlet and a lower air outlet;

[0027] The method further includes:

[0028] When the first difference is less than a preset first temperature threshold and the second difference is less than a preset second temperature threshold, one of the upper air outlet and the lower air outlet is controlled to open and the other is controlled to close. The indoor fan is controlled to run at a first speed, the compressor is controlled to run at a first frequency, and the opening degree of the expansion valve is a first opening degree. The first speed is a value within a preset low speed range, the first frequency is a value within a preset low frequency range, and the first opening degree is a value within a preset high opening degree range.

[0029] The maximum value in the low-speed range is less than the maximum speed that the indoor fan can reach, the maximum value in the low-frequency range is less than the maximum frequency that the compressor can reach, and the minimum value in the high-opening range is greater than the maximum opening that the expansion valve can reach.

[0030] By adopting this implementation method, when entering the temperature control stage, the indoor fan speed, compressor frequency and expansion valve opening are all taken from preset ranges, which facilitates fine-tuning of the third difference value, thereby improving the adjustment accuracy and reducing indoor temperature fluctuations.

[0031] In conjunction with the first aspect, in an optional implementation of this application embodiment, controlling the air conditioner to use different air supply methods to reduce the first difference and the second difference based on the first difference between the first local temperature and the set temperature and the second difference between the second local temperature and the set temperature includes:

[0032] Based on the magnitude of the first difference, the air conditioner adjusts its air delivery mode for the first local area and the frequency of the compressor. When the first difference is less than the first temperature threshold, the air conditioner is controlled to adopt an air delivery mode for the second local area.

[0033] In this embodiment, different air supply methods and compressor frequencies are used to supply air before entering the temperature control stage, which helps to improve the temperature regulation efficiency of the air conditioner.

[0034] In conjunction with the first aspect, in an optional implementation of this application embodiment, adjusting the air supply mode of the air conditioner for the first local area and the frequency of the compressor according to the magnitude of the first difference includes:

[0035] The smaller the first difference, the smaller the air volume delivered by the air conditioner for the first local area, and the lower the frequency of the compressor.

[0036] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the air conditioner includes an upper air outlet and a lower air outlet; the upper air outlet is provided with an upper air guide, and the lower air outlet is provided with a lower air guide;

[0037] The step of adjusting the air conditioner's air delivery mode for the first local area and the compressor's frequency based on the magnitude of the first difference, and controlling the air conditioner to adopt an air delivery mode for the second local area when the first difference is less than the first temperature threshold, includes:

[0038] If the first difference exceeds the preset target threshold, the first air supply mode is operated and the compressor operates at the first target frequency, wherein the first air supply mode is that both the upper air outlet and the lower air outlet are open, and both the upper air guide and the lower air guide guide guide air.

[0039] The first difference is recalculated and when the recalculated first difference does not exceed the target threshold, the second air supply mode is run and the compressor runs at the second target frequency. The second air supply mode is that both the upper air outlet and the lower air outlet are open, and one of the upper air guide and the lower air guide is guided by one of them, while the other is in the minimum air outlet position.

[0040] The first difference is recalculated, and when the recalculated first difference is less than the first temperature threshold, the air conditioner is controlled to operate a third air supply mode for the second local area and the compressor operates at a third target frequency, wherein the third air supply mode is to open one of the upper air outlet and the lower air outlet.

[0041] Wherein, the target threshold is greater than the first temperature threshold, the air volume of the first air supply mode, the second air supply mode and the third air supply mode decreases in sequence, and the first target frequency, the second target frequency and the third target frequency decrease in sequence.

[0042] In conjunction with the first aspect, in an optional implementation of this application embodiment, adjusting the air supply mode of the air conditioner for the first local area and the frequency of the compressor according to the magnitude of the first difference, and controlling the air conditioner to adopt an air supply mode for the second local area when the first difference is less than the first temperature threshold, includes:

[0043] When the air conditioner is cooling, the first local area is the lower part of the space where the air conditioner operates, and the first local temperature is the temperature of the lower air inlet of the air conditioner; the second local area is the upper part of the space where the air conditioner operates, and the second local temperature is the temperature of the upper air inlet of the air conditioner.

[0044] When the air conditioner is heating, the first local area is the upper area of ​​the space where the air conditioner operates, and the first local temperature is the temperature of the upper air inlet of the air conditioner. The second local area is the lower area of ​​the space where the air conditioner operates, and the second local temperature is the temperature of the lower air inlet of the air conditioner.

[0045] According to a second aspect of the embodiments of this application, an air conditioner is provided, including a temperature control program, wherein the air conditioner employs the control method described above when executing the temperature control program.

[0046] In conjunction with the second aspect, in one optional implementation of the embodiments of this application, the air conditioner includes at least one of a cabinet air conditioner, a wall-mounted air conditioner, a window air conditioner, and a dehumidifier.

[0047] The technical effects achieved by the second aspect are similar to those achieved by the corresponding technical means in the first aspect, and will not be repeated here. Attached Figure Description

[0048] Figure 1 This is a flowchart of an air conditioner control method provided in an embodiment of this application;

[0049] Figure 2 This is a flowchart illustrating the cooling process of the air conditioning control method provided in this application embodiment in a specific application;

[0050] Figure 3 This is a flowchart illustrating the refrigeration temperature control method for an air conditioner provided in this application embodiment.

[0051] Figure 4 This is a flowchart illustrating the heating function of the air conditioning control method provided in this application embodiment during a specific application.

[0052] Figure 5 This is a flowchart illustrating the heating and temperature control method of an air conditioner provided in this application embodiment. Detailed Implementation

[0053] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0054] It should be understood that "multiple" as mentioned herein refers to two or more. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, to facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first," "second," etc., are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and the terms "first," "second," etc., do not necessarily imply differentness.

[0055] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0056] With the improvement of living standards, users have increasingly higher demands for the comfort of air conditioning equipment such as air conditioners and dehumidifiers. Air conditioners typically maintain a stable temperature by simply running or shutting down the compressor based on the difference between the indoor temperature and the set temperature. However, this method, when achieving high temperature control accuracy, involves frequent compressor switching, which not only wastes electricity but also generates noise from the compressor's increased frequency, leading to a poor user experience. When temperature control accuracy is low, the compressor's running and shutting-off intervals are longer, resulting in relatively energy savings but also large fluctuations in room temperature and poor comfort. Therefore, this paper proposes an automatic airflow control method. This method first adjusts different airflow patterns based on the temperature difference between the upper and lower parts of the room and the set temperature. Then, when the room temperature approaches the set temperature, it enters a precise temperature control mode. This mode compares the average room temperature with the set temperature and adjusts the indoor fan speed, compressor operating frequency, and electronic expansion valve opening. This method achieves rapid temperature rise and fall while maintaining high-precision temperature control, greatly improving air conditioning comfort.

[0057] Based on this, embodiments of this application provide a method for controlling an air conditioner and an air conditioner, which have at least the following characteristics:

[0058] An automatic air supply control method first adjusts different air guiding modes based on the temperature difference between the upper and lower parts of the room and the set temperature. Then, when the room temperature approaches the set temperature, it enters a precise temperature control mode. This mode adjusts the indoor fan speed, compressor operating frequency, and electronic expansion valve opening by comparing the average room temperature with the set temperature. This method can achieve rapid temperature rise and fall while maintaining high-precision temperature control, greatly improving the comfort of air conditioning.

[0059] At least the following problems need to be addressed:

[0060] It enables rapid temperature rise and fall, and provides high-precision temperature control, improving the comfort of air conditioners. It solves problems such as slow temperature rise and fall and large temperature fluctuations in air conditioners with both top and bottom air outlets.

[0061] It has at least the following effects:

[0062] High temperature control accuracy: Based on the temperature difference between the upper and lower parts of the room and the set temperature, multiple air supply methods are used to alternately control and precisely control the temperature, achieving a long-term temperature control effect with low temperature fluctuations.

[0063] Energy saving: Setting different maximum operating frequencies of the compressor corresponds to different room temperature differences to achieve energy saving effect, and reduces the risk of condensation in cooling mode.

[0064] Next, a control method for an air conditioner provided in this application embodiment will be further described. The air conditioner includes an indoor fan, a compressor, an expansion valve, and an indoor heat exchanger. The expansion valve is used to regulate the refrigerant entering the indoor heat exchanger. (Refer to...) Figure 1 The diagram shows a flow chart of an air conditioner control method, which includes the following processing steps.

[0065] S100: Obtain the first local temperature of the first local area of ​​the space where the air conditioner is operating and the second local temperature of the second local area of ​​the space where the air conditioner is operating.

[0066] In one embodiment, the first local area and the second local area are different areas in space, such as the upper and lower areas, the left and right areas, the front and back areas, and the front and back side areas of the air conditioning vent.

[0067] In one embodiment, the first local temperature can be obtained by a temperature sensor located within the first local area, and the second local temperature can be obtained by a temperature sensor located within the second local area. Specifically, a temperature sensor at the upper air inlet of the air conditioner is used to collect the first local temperature, and a temperature sensor at the lower air inlet of the air conditioner is used to collect the second local temperature.

[0068] S102. Based on the first difference between the first local temperature and the set temperature and the second difference between the second local temperature and the set temperature, control the air conditioner to use different air supply methods to reduce the first difference and the second difference.

[0069] In one embodiment, when the air conditioner is cooling, the first difference is equal to the first local temperature minus the set temperature, and the second difference is equal to the second local temperature minus the set temperature. When the air conditioner is heating, the first difference is equal to the set temperature minus the first local temperature, and the second difference is equal to the set temperature minus the second local temperature.

[0070] In one embodiment, the set temperature includes a user-defined temperature.

[0071] In one embodiment, different air supply methods may have different air outlet directions, different air outlets, different air volume, etc. This embodiment does not make specific limitations in this regard.

[0072] S104. When the first difference is less than a preset first temperature threshold and the second difference is less than a preset second temperature threshold, control at least one of the indoor fan speed, compressor frequency and expansion valve opening based on the third difference between the average temperature of the first local area and the second local area and the set temperature, until the third difference is within the preset first temperature range.

[0073] In one embodiment, the average temperature refers to the average temperature of different areas of the space where the air conditioner operates. Specifically, these different areas include, for example, the upper and lower halves of the space.

[0074] In one embodiment, a third difference is obtained by subtracting a set temperature from the average temperature.

[0075] In this embodiment, different air supply methods and compressor frequencies are used to supply air, which helps improve the temperature regulation efficiency of the air conditioner. Simultaneously, the temperature difference between the space where the air conditioner operates and the set temperature is small. At this point, controlling at least one of the indoor fan, compressor, and expansion valve controls the output temperature of the air conditioner, ensuring that the third difference is within the first temperature range. This precise control of the third difference makes it easier to stabilize the temperature of the space where the air conditioner operates near the set temperature, reducing indoor temperature fluctuations and improving the user experience.

[0076] In one possible embodiment of this application, the rotational speed, frequency, and opening degree each correspond to a preset value range;

[0077] Controlling at least one of the indoor fan speed, compressor frequency, and expansion valve opening includes:

[0078] The rotational speed, frequency, and opening degree are controlled one by one. When the controlled parameter reaches the limit value of its corresponding value range, the parameter among the rotational speed, frequency, and opening degree that has not reached the limit value is controlled. The limit value includes the maximum value and minimum value of the value range.

[0079] In one embodiment, the value range includes two limits, a maximum value and a minimum value. These are specifically set according to whether the system is cooling or heating.

[0080] By adopting this implementation method, the rotation speed, frequency and opening degree are controlled one by one, which can easily improve the adjustment accuracy. This allows the third difference to be adjusted more precisely to the first temperature range, achieving precise control of the third difference. This makes it easier to stabilize the temperature of the space where the air conditioner is applied near the set temperature, reduce indoor temperature fluctuations, and improve the user experience of the air conditioner.

[0081] Optionally, in one implementation of this embodiment, the step of controlling the rotational speed, frequency, and opening degree one by one, and controlling the parameters among the rotational speed, frequency, and opening degree that have not reached the limit value when the controlled parameter reaches the limit value of its corresponding value range, includes:

[0082] When the air conditioner is cooling, if the third difference exceeds the maximum value of the first temperature range, the speed, frequency and opening degree are controlled one by one to increase. When the controlled parameter reaches the maximum value of its corresponding value range, the parameter among the speed, frequency and opening degree that has not reached the limit value is controlled.

[0083] And / or when the air conditioner is heating, if the third difference exceeds the minimum value of the first temperature range, the speed, frequency and opening degree are controlled to decrease one by one, and when the controlled parameter reaches the minimum value of its corresponding value range, the parameter among the speed, frequency and opening degree that has not reached the limit value is controlled.

[0084] In one embodiment, the range of values ​​corresponding to rotational speed, frequency, and opening degree is based on the parameters that the indoor fan, compressor, and expansion valve in the air conditioner can actually achieve. For example, if the actual rotational speed that the fan can achieve is 0-500 rpm, then the range of rotational speed can be 0-500.

[0085] By adopting this implementation method, the speed, frequency and opening direction of the air conditioner are adjusted differently when it is cooling and heating. This is conducive to efficiently adjusting the third difference to the first temperature range, achieving precise control of the third difference, and thus making it easier to stabilize the temperature of the space where the air conditioner is applied near the set temperature, reducing indoor temperature fluctuations and improving the user experience of the air conditioner.

[0086] Optionally, in one implementation of this embodiment, before controlling the parameters among the rotational speed, frequency, and opening degree that have not reached the limit value, the method further includes:

[0087] Determine whether the newly obtained third difference is within the first temperature range;

[0088] If so, the current state of the air conditioner is maintained, wherein the current state of the air conditioner includes the current speed, current frequency, and current opening degree;

[0089] Otherwise, the parameters that have not reached the limit among the speed, frequency, and opening degree will be controlled.

[0090] In one embodiment, for example, the rotational speed is first increased, and when the rotational speed increases to the maximum value of its range, the frequency is increased, and when the frequency increases to the maximum value of its range, the opening degree is controlled.

[0091] By adopting this implementation method, before controlling the parameters of speed, frequency and opening degree that have not reached the limit, it is first determined whether the newly obtained third difference is within the first temperature range. If it is, the current state of the air conditioner is maintained, which helps to save energy and prolong the time when the third difference is within the first temperature range.

[0092] Optionally, in one implementation of this embodiment, the value range includes a first range corresponding to the rotational speed, a second range corresponding to the frequency, and a third range corresponding to the opening degree;

[0093] The step of controlling the rotational speed, frequency, and opening degree one by one includes:

[0094] The rotational speed is controlled to change according to a preset first adjustment value. When the adjusted rotational speed reaches the limit of the first interval, the indoor fan is kept running at the current rotational speed and the frequency is controlled to change according to a preset second adjustment value. When the adjusted frequency reaches the limit of the second interval, the compressor is kept running at the current frequency and the opening degree is controlled to change according to a preset third adjustment value. When the adjusted opening degree reaches the limit of the third interval, the compressor is stopped, the indoor fan is kept at the current rotational speed, the expansion valve is kept at the current opening degree, or the control phase is exited.

[0095] Using this method, the speed of the indoor fan is first adjusted, and then the opening of the expansion valve is adjusted, which helps to improve the efficiency of adjusting the third difference to the first temperature range.

[0096] Optionally, in one implementation of this embodiment, the air conditioner includes an upper air outlet and a lower air outlet;

[0097] The method further includes:

[0098] When the first difference is less than a preset first temperature threshold and the second difference is less than a preset second temperature threshold, one of the upper air outlet and the lower air outlet is controlled to open and the other is controlled to close. The indoor fan is controlled to run at a first speed, the compressor is controlled to run at a first frequency, and the opening degree of the expansion valve is a first opening degree. The first speed is a value within a preset low speed range, the first frequency is a value within a preset low frequency range, and the first opening degree is a value within a preset high opening degree range.

[0099] The maximum value in the low-speed range is less than the maximum speed that the indoor fan can reach, the maximum value in the low-frequency range is less than the maximum frequency that the compressor can reach, and the minimum value in the high-opening range is greater than the maximum opening that the expansion valve can reach.

[0100] By adopting this implementation method, when entering the temperature control stage, the indoor fan speed, compressor frequency and expansion valve opening are all taken from preset ranges, which facilitates fine-tuning of the third difference value, thereby improving the adjustment accuracy and reducing indoor temperature fluctuations.

[0101] Optionally, in one implementation of this embodiment, controlling the air conditioner to use different air supply methods to reduce the first difference and the second difference based on the first difference between the first local temperature and the set temperature and the second difference between the second local temperature and the set temperature includes:

[0102] Based on the magnitude of the first difference, the air conditioner adjusts its air delivery mode for the first local area and the frequency of the compressor. When the first difference is less than the first temperature threshold, the air conditioner is controlled to adopt an air delivery mode for the second local area.

[0103] In this embodiment, different air supply methods and compressor frequencies are used to supply air before entering the temperature control stage, which helps to improve the temperature regulation efficiency of the air conditioner.

[0104] Optionally, in one implementation of this embodiment, adjusting the air supply mode of the air conditioner for the first local area and the frequency of the compressor according to the magnitude of the first difference includes:

[0105] The smaller the first difference, the smaller the air volume delivered by the air conditioner for the first local area, and the lower the frequency of the compressor.

[0106] Optionally, in one implementation of this embodiment, the air conditioner includes an upper air outlet and a lower air outlet; the upper air outlet is provided with an upper air guide, and the lower air outlet is provided with a lower air guide;

[0107] The step of adjusting the air conditioner's air delivery mode for the first local area and the compressor's frequency based on the magnitude of the first difference, and controlling the air conditioner to adopt an air delivery mode for the second local area when the first difference is less than the first temperature threshold, includes:

[0108] If the first difference exceeds the preset target threshold, the first air supply mode is operated and the compressor operates at the first target frequency, wherein the first air supply mode is that both the upper air outlet and the lower air outlet are open, and both the upper air guide and the lower air guide guide guide air.

[0109] The first difference is recalculated and when the recalculated first difference does not exceed the target threshold, the second air supply mode is run and the compressor runs at the second target frequency. The second air supply mode is that both the upper air outlet and the lower air outlet are open, and one of the upper air guide and the lower air guide is guided by one of them, while the other is in the minimum air outlet position.

[0110] The first difference is recalculated, and when the recalculated first difference is less than the first temperature threshold, the air conditioner is controlled to operate a third air supply mode for the second local area and the compressor operates at a third target frequency, wherein the third air supply mode is to open one of the upper air outlet and the lower air outlet.

[0111] Wherein, the target threshold is greater than the first temperature threshold, the air volume of the first air supply mode, the second air supply mode and the third air supply mode decreases in sequence, and the first target frequency, the second target frequency and the third target frequency decrease in sequence.

[0112] Optionally, in one implementation of this embodiment, adjusting the air supply mode of the air conditioner for the first local area and the frequency of the compressor according to the magnitude of the first difference, and controlling the air conditioner to adopt an air supply mode for the second local area when the first difference is less than the first temperature threshold, includes:

[0113] When the air conditioner is cooling, the first local area is the lower part of the space where the air conditioner operates, and the first local temperature is the temperature of the lower air inlet of the air conditioner; the second local area is the upper part of the space where the air conditioner operates, and the second local temperature is the temperature of the upper air inlet of the air conditioner.

[0114] When the air conditioner is heating, the first local area is the upper area of ​​the space where the air conditioner operates, and the first local temperature is the temperature of the upper air inlet of the air conditioner. The second local area is the lower area of ​​the space where the air conditioner operates, and the second local temperature is the temperature of the lower air inlet of the air conditioner.

[0115] This application also provides an air conditioner, including a temperature control program, wherein the air conditioner uses the control method described above when executing the temperature control program.

[0116] Optionally, in one implementation of this embodiment, the air conditioner includes at least one of a cabinet air conditioner, a wall-mounted air conditioner, a window air conditioner, and a dehumidifier.

[0117] In the above embodiments of this application, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments. The steps illustrated in the related flowcharts can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be performed in a different order than that shown here. In other words, the order of steps described in the foregoing embodiments is merely an example. Reasonable adjustments to the order of steps based on the content of the embodiments of this application are also within the protection scope of the embodiments of this application.

[0118] In one specific implementation of this application embodiment, the air conditioner control method includes the following processing steps:

[0119] It should be noted that the set temperature refers to the target temperature set on the air conditioner.

[0120] Top air inlet temperature: The indoor ambient temperature above the air inlet of the indoor unit of the air conditioner;

[0121] Bottom air inlet temperature: The indoor ambient temperature at the bottom of the air inlet of the indoor unit of the air conditioner;

[0122] Temperature control accuracy: This measures the magnitude of indoor temperature fluctuations. The higher the temperature control accuracy, the smaller the indoor temperature fluctuations.

[0123] This application aims to propose a multi-mode air supply and precise temperature control method for distributed air supply inverter air conditioners. This method addresses the problem of traditional control schemes that only adjust fan speed, improving temperature control accuracy while maintaining air conditioning performance, thereby enhancing comfort. The core idea is to divide the room into multiple temperature zones based on the difference between the upper and lower ambient temperatures and the set temperature when the average room temperature deviates significantly from the set temperature. Each temperature zone corresponds to a specific action of the upper and lower air outlets and the internal air guide vanes. By limiting the maximum operating frequency of the compressor in different zones—the larger the temperature difference, the higher the compressor operating frequency; the smaller the temperature difference, the lower the compressor operating frequency—this ensures air conditioning energy efficiency while reducing the risk of condensation. When the average room temperature approaches the set temperature, the air conditioner enters a precise temperature control mode. Based on the difference between the average room temperature and the set temperature, the indoor fan speed, compressor frequency, and electronic expansion valve opening are adjusted to ensure that the air conditioner's heat regulation matches changes in room temperature, thereby reducing room temperature fluctuations and improving air conditioning comfort.

[0124] The air conditioner corresponding to this invention is a distributed air supply air conditioner, meaning the indoor unit has upper and lower air outlets. The air outlets contain air guides or other components that can alter the airflow effect. The indoor unit has two temperature detection devices, one above and one below the air inlet, used to detect the ambient temperature in the upper and lower parts of the room. The air conditioner can be a floor-standing unit or other types with upper and lower air outlets, such as wall-mounted or window units. The precise temperature control mode of this invention is applicable not only to situations where the room temperature approaches the set temperature after the air conditioner has been set for a period of time, but also to situations where the room temperature approaches the set temperature immediately upon startup. In normal temperature cooling and heating modes, i.e., when the outdoor temperature is between 24-28℃, the precise temperature control mode can effectively reduce the frequency of compressor shutdowns and improve temperature comfort.

[0125] Example:

[0126] a. Air conditioning cooling operation, detailed flowchart as follows: Figure 2 As shown: When the cooling unit is running, the inverter cabinet air conditioner with top and bottom air outlets supplies air in mode A, and the maximum operating frequency of the compressor is limited to A1; and during the process, it is determined whether the difference between the current temperature of the lower air inlet of the indoor unit and the set temperature is less than or equal to the set threshold T1. If so, proceed to step b; otherwise, the inverter cabinet air conditioner will still supply air in mode A, and the maximum operating frequency of the compressor will be limited to A1.

[0127] b. The air conditioner is now supplying air in mode B, and the maximum operating frequency of the compressor is limited to B1. It continues to determine whether the difference between the current temperature at the lower air inlet of the indoor unit and the set temperature is less than or equal to the set threshold T2. If yes, proceed to step c. Otherwise, continue to determine whether the difference between the current temperature at the upper air inlet of the indoor unit and the set temperature is less than or equal to the set threshold T4. If yes, the air conditioner supplies air in mode B, and the maximum operating frequency of the compressor is limited to B1. Otherwise, continue to determine whether the difference between the current temperature at the lower air inlet of the indoor unit and the set temperature is less than or equal to the set threshold T1. If yes, the air conditioner supplies air in mode B, and the maximum operating frequency of the compressor is limited to B1. Otherwise, proceed to step a.

[0128] c. The air conditioner is now supplying air in mode C, with the compressor's maximum operating frequency limited to C1. It then continues to determine whether the difference between the current indoor unit's upper air inlet temperature and the set temperature is less than or equal to the set threshold T1. If yes, it enters the precise cooling temperature control mode. Otherwise, it continues to determine whether the difference between the current indoor unit's lower air inlet temperature and the set temperature is less than or equal to the set threshold T2. If yes, the air conditioner supplies air in mode C, with the compressor's maximum operating frequency limited to C1. Otherwise, it continues to determine whether the difference between the current indoor unit's lower air inlet temperature and the set temperature is less than or equal to the set threshold T1. If yes, the air conditioner supplies air in mode B, with the compressor's maximum operating frequency limited to B1. Otherwise, it proceeds to step a.

[0129] like Figure 3As shown, the precise temperature control mode for cooling:

[0130] (1) The air conditioner supplies air in mode D, and the air conditioner operates for a first preset time with the first preset indoor fan speed, the first preset frequency, and the first preset opening degree. Here, the first preset indoor fan speed must be taken within the first preset range, which is the range of indoor fan speeds for the air conditioner to maintain normal cooling operation under normal temperature conditions; the first preset frequency must be taken within the second preset range, which is the range of frequencies for the air conditioner to maintain normal cooling operation under normal temperature conditions; the first preset opening degree must be taken within the third preset range, which is the range of opening degrees for the air conditioner to maintain normal cooling operation under normal temperature conditions; here, the first preset range is the low indoor fan speed range, the second preset range is the low frequency range, and the third preset range is the high opening degree range.

[0131] (2) Obtain ΔT = (upper air inlet temperature + lower air inlet temperature) / 2 - set temperature. If ΔT < T3, proceed to ①; if ΔT > T2, proceed to ②; if T3 ≤ ΔT ≤ T2, proceed to ③.

[0132] ①: a1: The indoor fan speed decreases by L revolutions per minute. The real-time ΔT of the air conditioner and the indoor fan speed are obtained. During the process, it is determined that ΔT≥T3. If so, proceed to ③. Otherwise, continue to determine whether the indoor fan speed has reached the lower limit of the first preset range. If so, proceed to a2. Otherwise, proceed to a1.

[0133] a2: The indoor fan speed runs at the lower limit of the first preset range frequency, and the compressor frequency decreases by M revolutions per minute. The real-time ΔT of the air conditioner and the compressor frequency are obtained. During the process, it is determined that ΔT≥T3. If so, proceed to ③. Otherwise, continue to determine whether the compressor frequency has reached the lower limit of the second preset range. If so, proceed to a3. Otherwise, proceed to a2.

[0134] a3: The indoor fan speed runs at the lower limit of the first preset range frequency, the compressor frequency runs at the lower limit of the second preset range, and the electronic expansion valve opening decreases at N revolutions per minute. The real-time ΔT of the air conditioner and the opening of the electronic expansion valve are obtained. During the process, it is determined that ΔT≥T3. If so, proceed to ③. Otherwise, continue to determine whether the opening of the electronic expansion valve has reached the lower limit of the third preset range. If so, proceed to a4. Otherwise, proceed to a3.

[0135] a4: The compressor stops, the indoor fan speed runs at the lower limit of the first preset range frequency, the electronic expansion valve opening runs at the lower limit of the third preset range, and during the process, it is determined whether the difference between the upper air inlet temperature and the set temperature is less than T1. If so, the compressor stops, the indoor fan speed runs at the lower limit of the first preset range frequency, and the electronic expansion valve opening runs at the lower limit of the third preset range. Otherwise, it returns to (1).

[0136] ②: b1: The indoor fan speed increases at L revolutions per minute, and the real-time ΔT of the air conditioner and the indoor fan speed are obtained. During the process, it is determined that ΔT≤T2. If so, proceed to ③. Otherwise, continue to determine whether the indoor fan speed has reached the upper limit of the first preset interval. If so, proceed to b2. Otherwise, proceed to b1.

[0137] b2: The indoor fan speed runs at the upper limit of the first preset range frequency, and the compressor frequency increases at M revolutions per minute. The real-time ΔT of the air conditioner and the compressor frequency are obtained. During the process, it is determined that ΔT≤T2. If so, proceed to ③. Otherwise, continue to determine whether the compressor frequency has reached the lower limit of the second preset range. If so, proceed to b3. Otherwise, proceed to b2.

[0138] b3: The indoor fan speed runs at the upper limit of the first preset range frequency, the compressor frequency runs at the upper limit of the second preset range, and the electronic expansion valve opening decreases at N revolutions per minute. The real-time ΔT of the air conditioner and the opening of the electronic expansion valve are obtained. During the process, it is determined that ΔT≤T2. If so, proceed to ③. Otherwise, continue to determine whether the opening of the electronic expansion valve has reached the upper limit of the third preset range. If so, exit the precise temperature control mode for cooling. Otherwise, proceed to b3.

[0139] Under the aforementioned air supply control method, variable frequency cabinet air conditioners can automatically control the opening and closing of the upper and lower air outlets and the movement of the upper and lower air guide components based on the difference between the indoor and lower temperatures and the set temperature. They can also adjust the indoor fan speed, compressor frequency, and electronic expansion valve opening, thereby increasing the rate of temperature rise and fall while reducing indoor temperature fluctuations and improving the accuracy of temperature control.

[0140] The four air supply methods described in the above scheme are as follows:

[0141] Mode A air supply: Both the upper and lower air outlets are opened and air is supplied at the same time. The upper and lower air sweeping components operate at the same time, which can increase the air turbulence in the room, improve the uniformity of room temperature, increase the rate of temperature drop, and make the room cool down quickly to the set temperature.

[0142] Mode B air supply: Both the upper and lower air outlets are open and supply air simultaneously. The upper air sweeping component is running, while the lower air sweeping component is stopped and in the minimum air supply position. This can effectively reduce the airflow at the bottom of the air conditioner and prevent excessive vertical temperature difference in the room.

[0143] Mode C air supply: The lower air outlet is closed and the upper air outlet is open. Only the upper air outlet supplies air, and the upper air sweeping component is running. At this time, the lower part of the room is close to the set temperature, while the upper part of the room has not yet reached the set temperature. Closing the lower air outlet can effectively prevent the temperature in the lower part of the room from deviating from the set temperature. At the same time, opening the upper air outlet allows the temperature in the upper part of the room to continue to approach the set temperature, so that the overall temperature of the room is close to the set temperature, preventing the vertical temperature difference of the room from being too large.

[0144] Mode D air supply: The lower air outlet is closed, the upper air outlet is open, and only the upper air outlet supplies air. The upper air sweeping component stops operating and is in the minimum air supply position. At this time, the temperature in the upper part of the room is close to the set temperature, the temperature in the lower part of the room is slightly lower than the set temperature, and the overall room temperature is closest to the set temperature. The air conditioner only blows out a weak cold air from the upper air outlet to maintain a stable room temperature.

[0145] In this embodiment, the maximum operating frequency of the compressor is set to A1 > B1 > C1. This is mainly because, on the one hand, the load in the air-conditioned room gradually decreases, allowing the maximum operating frequency of the compressor to be reduced, thus saving energy; on the other hand, in cooling mode B, the air guide component is at the minimum air outlet position, in mode C the lower air outlet is closed, and in mode D the lower air outlet is closed and the upper air guide component is at the minimum air outlet position, resulting in a reduction in the overall air volume of the air conditioner. If the frequency is not changed, the outlet air temperature will decrease, and there is a risk of condensation when the outlet air temperature is lower than the indoor dew point temperature. Therefore, in cooling mode, as the air volume gradually decreases in air supply modes B, C, and D, it is also necessary to gradually reduce the maximum operating frequency of the compressor and increase the outlet air temperature to avoid condensation.

[0146] According to the experiment, the difference T1 can be 0 to 2, preferably 1; the difference T2 can be -1 to 1, preferably 0; the difference T3 can be -2 to 0, preferably -1; and the difference T4 can be 1 to 3, preferably 2.

[0147] Among them, ① indicates excessive cooling, at which point the indoor temperature is already lower than a certain range of the set temperature;

[0148] ② To achieve moderate cooling, the indoor temperature is just below the set temperature and very close to the set temperature.

[0149] ③ Insufficient cooling; the indoor temperature is higher than the set temperature.

[0150] The specific flowchart for air conditioner heating operation is as follows: Figure 4 As shown:

[0151] d. When the heating is turned on, the variable frequency cabinet air conditioner with top and bottom air outlets will supply air in mode E, and the maximum operating frequency of the compressor will be limited to E1. During the process, it will be determined whether the difference between the set temperature and the current temperature of the air inlet of the indoor unit is less than or equal to the set threshold T1. If so, proceed to step e; otherwise, the variable frequency air conditioner cabinet air conditioner will still supply air in mode E, and the maximum operating frequency of the compressor will be limited to E1.

[0152] e. The air conditioner is now blowing air in mode F, and the maximum operating frequency of the compressor is limited to F1; and it continues to determine whether the difference between the set temperature and the current temperature at the upper air inlet of the indoor unit is less than or equal to the set threshold T2. If yes, proceed to step f; otherwise, continue to determine whether the difference between the set temperature and the current temperature at the lower air inlet of the indoor unit is less than or equal to the set threshold T4. If yes, the air conditioner is blowing air in mode F, and the maximum operating frequency of the compressor is limited to F1; otherwise, continue to determine whether the difference between the set temperature and the current temperature at the upper air inlet of the indoor unit is less than or equal to the set threshold T1. If yes, the air conditioner is blowing air in mode F, and the maximum operating frequency of the compressor is limited to F1; otherwise, proceed to step d.

[0153] f. At this time, the air conditioner supplies air in mode G, and the maximum operating frequency of the compressor is limited to G1; and continues to determine whether the difference between the set temperature and the current temperature at the lower air inlet of the indoor unit is less than or equal to the set threshold T1. If yes, it enters the precise temperature control mode for heating; otherwise, it continues to determine whether the difference between the set temperature and the current temperature at the upper air inlet of the indoor unit is less than or equal to the set threshold T2. If yes, the air conditioner supplies air in mode G, and the maximum operating frequency of the compressor is limited to G1; otherwise, it continues to determine whether the difference between the set temperature and the current temperature at the upper air inlet of the indoor unit is less than or equal to the set threshold T1. If yes, it proceeds to step e; otherwise, it proceeds to step d.

[0154] like Figure 5 As shown, the precise temperature control mode for heating:

[0155] (3) The air conditioner supplies air in mode H, and the air conditioner operates for a second preset time at the second preset indoor fan speed, the second preset frequency, and the second preset opening degree. Here, the second preset indoor fan speed must be taken within the fourth preset range, which is the range of indoor fan speeds for the air conditioner to maintain normal heating operation under normal temperature conditions; the second preset frequency must be taken within the fifth preset range, which is the frequency range for the air conditioner to maintain normal heating operation under normal temperature conditions; the second preset opening degree must be taken within the sixth preset range, which is the opening degree range for the air conditioner to maintain normal heating operation under normal temperature conditions; here, the fourth preset range is the low indoor fan speed range, the fourth preset range is the low frequency range, and the fourth preset range is the high opening degree range.

[0156] (4) Obtain ΔT = (upper air inlet temperature + lower air inlet temperature) / 2 - set temperature. If ΔT > T1, proceed to ④; if ΔT < T2, proceed to ⑤; if T1 ≤ ΔT ≤ T2, proceed to ⑥.

[0157] ④: c1: The indoor fan speed decreases at 0 rpm, and the real-time ΔT of the air conditioner and the indoor fan speed are obtained. During the process, it is determined that ΔT≤T1. If so, proceed to ⑥. Otherwise, continue to determine whether the indoor fan speed has reached the lower limit of the fourth preset interval. If so, proceed to c2. Otherwise, proceed to c1.

[0158] c2: The indoor fan speed runs at the lower limit of the fourth preset interval frequency, and the compressor frequency decreases by P revolutions per minute. The real-time ΔT of the air conditioner and the compressor frequency are obtained. During the process, it is determined that ΔT≤T1. If so, proceed to ⑥. Otherwise, continue to determine whether the compressor frequency has reached the lower limit of the fifth preset interval. If so, proceed to c3. Otherwise, proceed to c2.

[0159] c3: The indoor fan speed operates at the lower limit of the fourth preset range frequency, the compressor frequency operates at the lower limit of the fifth preset range, and the electronic expansion valve opening decreases at Q revolutions per minute. The real-time ΔT of the air conditioner and the opening of the electronic expansion valve are obtained. During the process, it is determined that ΔT≤T1. If so, proceed to ⑥. Otherwise, continue to determine whether the opening of the electronic expansion valve has reached the lower limit of the sixth preset range. If so, proceed to c4. Otherwise, proceed to c3.

[0160] c4: The compressor stops, the indoor fan speed runs at the lower limit of the fourth preset range frequency, the electronic expansion valve opening runs at the lower limit of the sixth preset range, and during the process, it is determined whether the difference between the lower air inlet temperature and the set temperature is greater than T3. If so, the compressor stops, the indoor fan speed runs at the lower limit of the fourth preset range frequency, and the electronic expansion valve opening runs at the lower limit of the sixth preset range. Otherwise, it returns to (3).

[0161] ⑤: d1: The indoor fan speed increases at 0 rpm, and the real-time ΔT of the air conditioner and the indoor fan speed are obtained. During the process, it is determined that ΔT≥T2. If so, proceed to ⑥; otherwise, continue to determine whether the indoor fan speed has reached the upper limit of the fourth preset interval. If so, proceed to d2; otherwise, proceed to d1.

[0162] d2: The indoor fan speed runs at the upper limit of the fourth preset range frequency, and the compressor frequency increases by P revolutions per minute. The real-time ΔT of the air conditioner and the compressor frequency are obtained. During the process, it is determined that ΔT≥T2. If so, proceed to ⑥. Otherwise, continue to determine whether the compressor frequency has reached the upper limit of the fifth preset range. If so, proceed to d3. Otherwise, proceed to d2.

[0163] d3: The indoor fan speed runs at the upper limit of the fourth preset range frequency, the compressor frequency runs at the upper limit of the fifth preset range, and the electronic expansion valve opening increases at Q revolutions per minute. The real-time ΔT of the air conditioner and the opening of the electronic expansion valve are obtained. During the process, it is determined that ΔT≥T2. If so, proceed to ⑥. Otherwise, continue to determine whether the opening of the electronic expansion valve has reached the upper limit of the sixth preset range. If so, exit the heating precision temperature control mode. Otherwise, proceed to d3.

[0164] The four air supply methods described in the above scheme are as follows:

[0165] E-mode air supply: Both the upper and lower air outlets are open and supply air simultaneously, and the upper and lower air sweeping components operate at the same time. This can increase the air turbulence in the room, improve the uniformity of room temperature, increase the rate of temperature rise, and make the room heat up quickly to close the set temperature.

[0166] F-mode air supply: Both the upper and lower air outlets are open and supply air simultaneously. The lower air sweeping component is running, while the upper air sweeping component is stopped and in the minimum air supply position. This can effectively reduce the wind sensation at the top of the air conditioner and prevent excessive vertical temperature difference in the room.

[0167] G-mode air supply: The upper air outlet is closed and the lower air outlet is open. Only the lower air outlet supplies air, and the lower air sweeping component is running. At this time, the upper part of the room is close to the set temperature, while the lower part of the room has not yet reached the set temperature. Closing the upper air outlet can effectively prevent the temperature in the upper part of the room from deviating from the set temperature. At the same time, opening the lower air outlet allows the temperature in the lower part of the room to continue to approach the set temperature, so that the overall temperature of the room is close to the set temperature, preventing the vertical temperature difference of the room from being too large.

[0168] H-mode air supply: The upper air outlet is closed and the lower air outlet is open. Only the lower air outlet supplies air, the lower air sweeping component stops operating and is in the minimum air supply position. At this time, the temperature in the lower part of the room is close to the set temperature, the temperature in the upper part of the room is slightly higher than the set temperature, and the overall room temperature is closest to the set temperature. The air conditioner blows out a weak amount of hot air from the lower air outlet to maintain a stable room temperature.

[0169] In this embodiment, the maximum operating frequency of the compressor is set to E1 > F1 > G1, mainly because the load in the air-conditioned room will gradually decrease, and the maximum operating frequency of the compressor can be reduced, thereby saving energy.

[0170] The range of values ​​for the temperature differences T1, T2, T3, and T4 during heating is the same as that during cooling.

[0171] Among them, ④ indicates excessive heating, at which point the indoor temperature has exceeded a certain range of the set temperature;

[0172] ⑤ To achieve moderate heating, the indoor temperature is just higher than the set temperature and very close to the set temperature.

[0173] ⑥ Insufficient heating; the indoor temperature is lower than the set temperature.

[0174] The sequence numbers or order of description of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0175] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0176] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0177] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0178] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., digital versatile disc (DVD)), or a semiconductor medium (e.g., solid state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiments of this application can be a non-volatile storage medium; in other words, it can be a non-transient storage medium.

[0179] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in the embodiments of this application are all authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the scene data of the current frame in the 3D virtual scene involved in the embodiments of this application, the client's device information, and the scene interaction information are all obtained with full authorization.

[0180] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A control method of an air conditioner, characterized by, The air conditioner comprises an indoor fan, a compressor, an expansion valve for regulating refrigerant entering an indoor heat exchanger, and the indoor heat exchanger, and the method comprises: obtaining a first local temperature of a first local area of a space acted on by an air conditioner and a second local temperature of a second local area of the space acted on by the air conditioner; controlling the air conditioner to adopt different air supply modes to reduce a first difference between the first local temperature and a set temperature and a second difference between the second local temperature and the set temperature according to the first difference and the second difference; when the first difference is less than a preset first temperature threshold and the second difference is less than a preset second temperature threshold, controlling at least one of a rotation speed of the indoor fan, a frequency of the compressor, and an opening degree of the expansion valve according to a third difference between a temperature average of the first local area and the second local area and the set temperature until the third difference is within a preset first temperature interval, wherein a maximum value of the first temperature interval is less than the first temperature threshold and the second temperature threshold.

2. The control method of the air conditioner according to claim 1, characterized by, The rotation speed, the frequency, and the opening degree respectively correspond to preset value intervals; The controlling at least one of the rotation speed of the indoor fan, the frequency of the compressor, and the opening degree of the expansion valve comprises: controlling the rotation speed, the frequency, and the opening degree one by one and controlling a parameter that has not reached a limit value among the rotation speed, the frequency, and the opening degree when a controlled parameter reaches a limit value corresponding to the parameter itself in the value interval, wherein the limit value includes a maximum value and a minimum value of the value interval.

3. The control method of the air conditioner according to claim 2, characterized by, The controlling the rotation speed, the frequency, and the opening degree one by one and controlling a parameter that has not reached a limit value among the rotation speed, the frequency, and the opening degree when a controlled parameter reaches a limit value corresponding to the parameter itself in the value interval comprises: when the air conditioner is cooling, if the third difference exceeds the maximum value of the first temperature interval, controlling the rotation speed, the frequency, and the opening degree to increase one by one and controlling a parameter that has not reached a limit value among the rotation speed, the frequency, and the opening degree when a controlled parameter reaches the maximum value corresponding to the parameter itself in the value interval; and / or when the air conditioner is heating, if the third difference exceeds the minimum value of the first temperature interval, controlling the rotation speed, the frequency, and the opening degree to decrease one by one and controlling a parameter that has not reached a limit value among the rotation speed, the frequency, and the opening degree when a controlled parameter reaches the minimum value corresponding to the parameter itself in the value interval.

4. The control method of the air conditioner according to claim 2, characterized by, Before the controlling a parameter that has not reached a limit value among the rotation speed, the frequency, and the opening degree, the method further comprises: determining whether the third difference is within the first temperature interval; if yes, maintaining a current state of the air conditioner, wherein the current state of the air conditioner includes a current rotation speed, a current frequency, and a current opening degree; otherwise, performing the controlling a parameter that has not reached a limit value among the rotation speed, the frequency, and the opening degree.

5. The control method of the air conditioner according to claim 2, characterized by, The value interval includes a first interval corresponding to the rotation speed, a second interval corresponding to the frequency, and a third interval corresponding to the opening degree; The controlling the rotation speed, the frequency, and the opening degree one by one comprises: The rotation speed is controlled to change according to a preset first adjustment value, when the adjusted rotation speed reaches the limit value of the first interval, the indoor fan is kept running at the current rotation speed and the frequency is controlled to change according to a preset second adjustment value, when the adjusted frequency reaches the limit value of the second interval, the compressor is kept running at the current frequency and the opening degree is controlled to change according to a preset third adjustment value, when the adjusted opening degree reaches the limit value of the third interval, the compressor is controlled to stop, the indoor fan is kept running at the current rotation speed and the expansion valve is kept at the current opening degree.

6. The control method of an air conditioner according to any one of claims 1 to 5, characterized by, The air conditioner comprises an upper air outlet and a lower air outlet; The control method of the air conditioner further comprises: when the first difference is less than a preset first temperature threshold and the second difference is less than a preset second temperature threshold, one of the upper air outlet and the lower air outlet is controlled to open, the other is controlled to close, the indoor fan is controlled to run at a first rotation speed, the compressor is controlled to run at a first frequency and the opening degree of the expansion valve is controlled to be a first opening degree, wherein the first rotation speed is a value in a preset low rotation speed interval, the first frequency is a value in a preset low frequency interval and the first opening degree is a value in a preset high opening degree interval; wherein the maximum value of the low rotation speed interval is less than the maximum rotation speed that the indoor fan can reach, the maximum value of the low frequency interval is less than the maximum frequency that the compressor can reach and the minimum value of the high opening degree interval is greater than the maximum opening degree that the expansion valve can reach.

7. The control method of the air conditioner according to claim 1, characterized by, The control of the air conditioner to adopt different air supply modes to reduce the first difference and the second difference according to the first difference between the first local temperature and the set temperature and the second difference between the second local temperature and the set temperature comprises: adjusting the air supply mode of the air conditioner for the first local area and the frequency of the compressor according to the size of the first difference and controlling the air conditioner to adopt the air supply mode for the second local area when the first difference is less than the first temperature threshold.

8. The control method of the air conditioner according to claim 7, characterized by, The adjustment of the air supply mode of the air conditioner for the first local area and the frequency of the compressor according to the size of the first difference comprises: The smaller the first difference is, the smaller the air supply amount of the air supply mode of the air conditioner for the first local area is and the smaller the frequency of the compressor is.

9. The control method of the air conditioner according to claim 8, characterized by, The air conditioner comprises an upper air outlet and a lower air outlet; the upper air outlet is provided with an upper air guide member and the lower air outlet is provided with a lower air guide member; The adjustment of the air supply mode of the air conditioner for the first local area and the frequency of the compressor according to the size of the first difference and controlling the air conditioner to adopt the air supply mode for the second local area when the first difference is less than the first temperature threshold comprises: if the first difference exceeds a preset target threshold, a first air supply mode is adopted and the compressor runs at a first target frequency, wherein the first air supply mode is that the upper air outlet and the lower air outlet are both opened and the upper air guide member and the lower air guide member both guide air; recomputing the first difference value and, when the recomputed first difference value is not more than the target threshold, operating a second air supply mode and the compressor at a second target frequency, wherein the second air supply mode is one of the upper air outlet and the lower air outlet being open and the upper air deflector and the lower air deflector both directing air, and the other being at a minimum air outlet position; recomputing the first difference value and, when the recomputed first difference value is not more than the target threshold, operating a second air supply mode and the compressor at a second target frequency, wherein the second air supply mode is one of the upper air outlet and the lower air outlet being open and the upper air deflector and the lower air deflector both directing air, and the other being at a minimum air outlet position; wherein the target threshold is greater than the first temperature threshold, the air supply amount of the first air supply mode, the second air supply mode and the third air supply mode is successively smaller, and the first target frequency, the second target frequency and the third target frequency is successively smaller. 10.The control method of the air conditioner according to claim 9, characterized by, adjusting the air supply mode of the air conditioner for the first local area and the frequency of the compressor according to the first difference value and, when the first difference value is less than the first temperature threshold, controlling the air conditioner to adopt an air supply mode for a second local area, comprising: when the air conditioner is cooling, the first local area is a lower area of a space acted on by the air conditioner, the first local temperature is a temperature of a lower air inlet of the air conditioner, the second local area is an upper area of the space acted on by the air conditioner, and the second local temperature is a temperature of an upper air inlet of the air conditioner; when the air conditioner is heating, the first local area is an upper area of the space acted on by the air conditioner, the first local temperature is a temperature of an upper air inlet of the air conditioner, the second local area is a lower area of the space acted on by the air conditioner, and the second local temperature is a temperature of a lower air inlet of the air conditioner.

11. An air conditioner characterized by comprising: The air conditioner comprises at least one of a cabinet air conditioner, a wall-mounted air conditioner, a window air conditioner and a dehumidifier.

12. The air conditioner according to claim 11, wherein The air conditioner comprises at least one of a cabinet air conditioner, a wall-mounted air conditioner, a window air conditioner and a dehumidifier.

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