Air conditioner control method and air conditioner

Abstract

The embodiment of the invention discloses an air conditioner control method and an air conditioner, and belongs to the field of equipment control. The control method of the air conditioner comprises the steps that a first local temperature and a second local temperature are obtained; according to a first difference value between the first local temperature and the set temperature and a second difference value between the second local temperature and the set temperature, the air conditioner is controlled to adopt different air supply modes; and when the first difference value is smaller than a preset first temperature threshold value and the second difference value is smaller than a preset second temperature threshold value, at least one of the rotating speed of the indoor fan, the frequency of the compressor and the opening degree of the expansion valve is controlled according to a third difference value between the temperature average value of the first local area and the second local area and the set temperature. The embodiment of the invention has the technical effects of improving the temperature adjusting efficiency of the air conditioner, reducing the fluctuation of the indoor temperature and improving the use experience of the air conditioner.

Description

Technical Field

[0001] The present application relates to the field of equipment control, and in particular to a control method for an air conditioner and an air conditioner. Background Art

[0002] With the improvement of living standards, users have higher and higher requirements for the performance of air conditioners. When adjusting the indoor temperature, current air conditioners rely on the opening and closing of the compressor to adjust the indoor temperature to near the user's set temperature. However, this method has limited accuracy in adjusting the indoor temperature, resulting in large fluctuations in the indoor temperature, which reduces the user experience of the air conditioner. Summary of the invention

[0003] The embodiments of the present application provide a control method for an air conditioner and an air conditioner, so as to at least solve the technical problem of a decreased user experience of the air conditioner.

[0004] According to a first aspect of an embodiment of the present application, a control method for an air conditioner is provided, the air conditioner comprising an indoor fan, a compressor, an expansion valve and an indoor heat exchanger, the expansion valve being used to adjust the refrigerant entering the indoor heat exchanger, the method comprising:

[0005] Acquire a first local temperature of a first local area of ​​the air-conditioned space and a second local temperature of a second local area of ​​the air-conditioned space;

[0006] According to a first difference between the first local temperature and the set temperature and a second difference between the second local temperature and the set temperature, controlling the air conditioner to adopt different air supply modes 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 speed of the indoor fan, the frequency of the compressor and the opening of the expansion valve is controlled according to a third difference between the temperature averages 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] With this embodiment, different air supply modes and compressor frequencies are first used to supply air, which is beneficial to improving the temperature control efficiency of the air conditioner. At the same time, the temperature of the space where the air conditioner acts is less different from the set temperature. At this time, at least one of the indoor fan, compressor and expansion valve is controlled to control the temperature output of the air conditioner so that the third difference is within the first temperature range, and the third difference is accurately controlled, so that it is easy to stabilize the temperature of the space where the air conditioner acts near the set temperature, reduce the fluctuation of the indoor temperature, and improve the use experience of the air conditioner.

[0009] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the rotation speed, frequency and opening degree respectively correspond to preset value ranges;

[0010] The controlling of at least one of the rotation speed of the indoor fan, the frequency of the compressor and the opening of the expansion valve comprises:

[0011] The rotational speed, frequency and opening are controlled one by one and when the controlled parameter reaches the limit of the corresponding value interval, the parameters of the rotational speed, frequency and opening that have not reached the limit are controlled, wherein the limit includes the maximum value and the minimum value of the value interval.

[0012] By adopting this implementation method, the rotation speed, frequency and opening are controlled one by one, which makes it easy to improve the adjustment accuracy, thereby more accurately adjusting the third difference to the first temperature range, and achieving precise control of the third difference, so that it is easy to stabilize the temperature of the space where the air conditioner acts near the set temperature, reduce the fluctuation of the indoor temperature, and improve the user experience of the air conditioner.

[0013] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the speed, frequency and opening are controlled one by one and when the controlled parameter reaches the limit of the value interval corresponding to itself, the parameter among the speed, frequency and opening that does not reach the limit is controlled, including:

[0014] When the air conditioner is cooling, if the third difference exceeds the maximum value of the first temperature interval, the speed, frequency and opening are controlled to increase one by one, and when the controlled parameter reaches the maximum value of the value interval corresponding to itself, the parameters of the speed, frequency and opening that have not reached the limit value are 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 are controlled to decrease one by one and when the controlled parameter reaches the minimum value of the corresponding value range, the parameters among the speed, frequency and opening that have not reached the limit value are controlled.

[0016] By adopting this implementation method, when the air conditioner is cooling and heating, the adjustment directions of the speed, frequency and opening are different, which is conducive to efficiently adjusting the third difference to the first temperature range and realizing precise control of the third difference, thereby facilitating the temperature of the space where the air conditioner acts to stabilize near the set temperature, reducing the fluctuation of indoor temperature and improving the user experience of the air conditioner.

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

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

[0019] If yes, maintain the current state of the air conditioner, wherein the current state of the air conditioner includes the current speed, the current frequency and the current opening degree;

[0020] Otherwise, the control of the parameters among the rotation speed, frequency and opening that have not reached the limit value is executed.

[0021] By adopting this implementation method, before controlling the parameters that have not reached the limit values ​​among the speed, frequency and opening, it is first determined whether the newly obtained third difference is within the first temperature range. If so, the current state of the air conditioner is maintained, which is beneficial to saving energy and extending the time that the third difference is within the first temperature range.

[0022] In combination with the first aspect, in an optional implementation of the embodiment of the present application, 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;

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

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

[0025] By adopting this implementation, the rotation speed of the indoor fan is adjusted first, and finally the opening of the expansion valve is adjusted, which is conducive to improving the efficiency of adjusting the third difference to the first temperature range.

[0026] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the air conditioner includes an upper air outlet and a lower air outlet;

[0027] The method further comprises:

[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 be opened and the other is closed, and the indoor fan is controlled to operate at a first speed, the compressor is controlled to operate at a first frequency, and the opening of the expansion valve is controlled to be a first opening, wherein 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 is a value within a preset high opening range;

[0029] Among them, the maximum value of the low speed interval is less than the maximum 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 interval is greater than the maximum opening that the expansion valve can reach.

[0030] With this implementation, when entering the temperature control stage, the speed of the indoor fan, the frequency of the compressor and the opening of the expansion valve are all taken from a preset range, which is conducive to fine-tuning the third difference, thereby improving the accuracy of the adjustment and reducing the fluctuation of the indoor temperature.

[0031] In combination with the first aspect, in an optional implementation of the embodiment of the present application, controlling the air conditioner to adopt different air supply modes to reduce the first difference and the second difference according to a first difference between the first local temperature and the set temperature and a second difference between the second local temperature and the set temperature includes:

[0032] The air supply mode of the air conditioner for the first local area and the frequency of the compressor are adjusted according to the size of the first difference, and when the first difference is less than the first temperature threshold, the air conditioner is controlled to adopt the air supply mode for the second local area.

[0033] According to this embodiment, before entering the temperature control stage, different air supply modes and compressor frequencies are used to supply air, which is beneficial to improving the temperature control efficiency of the air conditioner.

[0034] In combination with the first aspect, in an optional implementation of the embodiment of the present application, 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 includes:

[0035] The smaller the first difference is, the smaller the air supply volume of the air supply method of the air conditioner for the first local area is, and the smaller the frequency of the compressor is.

[0036] In combination with the first aspect, in an optional implementation of the embodiment of the present 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 method of 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 includes:

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

[0039] recalculating the first difference and when the recalculated first difference does not exceed the target threshold, operating the second air supply mode and the compressor operating at the second target frequency, wherein the second air supply mode is that both the upper air outlet and the lower air outlet are open, one of the upper air guide and the lower air guide guide guides the air, and the other is at a minimum air outlet position;

[0040] recalculating the first difference and when the recalculated first difference is less than the first temperature threshold, controlling the air conditioner to operate in a third air supply mode for the second local area and the compressor to operate at a third target frequency, wherein the third air supply mode is that one of the upper air outlet and the lower air outlet is opened;

[0041] Among them, the target threshold is greater than the first temperature threshold, the air supply volumes of the first air supply mode, the second air supply mode and the third air supply mode decrease successively, and the first target frequency, the second target frequency and the third target frequency decrease successively.

[0042] In combination with the first aspect, in an optional implementation of the embodiment of the present application, 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, includes:

[0043] When the air conditioner is cooling, the first local area is the lower area of ​​the space where the air conditioner acts, the first local temperature is the temperature of the lower air inlet of the air conditioner, and the second local area is the upper area of ​​the space where the air conditioner acts, 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 works, 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 works, and the second local temperature is the temperature of the lower air inlet of the air conditioner.

[0045] According to a second aspect of an embodiment of the present application, an air conditioner is provided, comprising a temperature control program, wherein the air conditioner adopts the above-mentioned control method when executing the temperature control program.

[0046] In combination with the second aspect, in an optional implementation of the embodiment of the present 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 effect obtained by the above-mentioned second aspect is similar to the technical effect obtained by the corresponding technical means in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 is a flow chart of a method for controlling an air conditioner provided in an embodiment of the present application;

[0049] Figure 2 is a flow chart of cooling in a specific application of the air conditioner control method provided in an embodiment of the present application;

[0050] Figure 3 This is a flow chart of refrigeration and temperature control in a specific application of an air-conditioning control method provided by an embodiment of the present application;

[0051] Figure 4 is a flow chart of the air conditioner control method provided in the embodiment of the present application for heating in a specific application;

[0052] Figure 5 This is a flow chart of heating and temperature control in a specific application of an air-conditioning control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0054] It should be understood that the "plurality" mentioned in this article refers to two or more. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second" and so on are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first", "second" and so on do not limit the quantity and execution order, and the words "first", "second" and so on do not limit certain different

[0055] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0056] With the improvement of living standards, users have higher and higher demands for the comfort of air conditioning equipment such as air conditioners and dehumidifiers. When the air conditioner maintains a stable temperature, it usually only runs or shuts down the compressor according to the difference between the indoor temperature and the set temperature to maintain a stable indoor temperature. However, when the temperature control accuracy is high, this method will frequently switch the compressor on and off to maintain a stable temperature, which will not only waste electricity, but also cause noise caused by the compressor frequency increase, which will bring a bad experience to users. When the temperature control accuracy is low, the interval between the operation and shutdown of the compressor is long. Although it is relatively energy-saving, the temperature fluctuation inside the room is large and the comfort is poor. Therefore, this paper proposes an automatic air supply control method. This method first adjusts different air guide modes according to the difference between the temperature of the upper and lower parts of the room and the set temperature, and then enters the precise temperature control mode when the room temperature is close to the set temperature. This mode adjusts the indoor fan speed, compressor operating frequency and electronic expansion valve opening in the air conditioner by comparing the average room temperature with the set temperature. Through this method, rapid temperature rise and fall can be achieved, and high-precision temperature control can be maintained, greatly improving the comfort of the air conditioner.

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

[0058] A method for controlling an automatic air supply method, which first adjusts different air guide modes according to the difference between the temperature of the upper and lower parts of the room and the set temperature, and then enters a precise temperature control mode when the room temperature is close to the set temperature. This mode adjusts the indoor fan speed, compressor operating frequency and electronic expansion valve opening of the air conditioner by comparing the average room temperature with the set temperature. Through this method, rapid temperature rise and fall can be achieved, and high-precision temperature control can be maintained, greatly improving the comfort of the air conditioner.

[0059] At least solve the following problems:

[0060] It can achieve rapid temperature rise and fall, and perform high-precision temperature control to improve the comfort of the air conditioner. It solves the problems of slow temperature rise and fall and large temperature fluctuations in up and down air conditioners.

[0061] At least the following effects:

[0062] High temperature control accuracy: According to the difference between the upper and lower temperatures of the room and the set temperature, a variety of air supply methods are used to alternately control and accurately control the temperature to achieve long-term temperature control effects with low temperature fluctuations.

[0063] Energy saving: Set different maximum compressor operating frequencies to correspond to different room temperature differences to achieve energy saving effects and reduce the risk of condensation in cooling mode.

[0064] Next, a control method for an air conditioner provided in an embodiment of the present application is 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 adjust the refrigerant entering the indoor heat exchanger. Figure 1 The flowchart of the air conditioner control method shown is as follows.

[0065] S100: Acquire a first local temperature of a first local area of ​​the air-conditioned space and a second local temperature of a second local area of ​​the air-conditioned space.

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

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

[0068] S102: According to a first difference between the first local temperature and the set temperature and a second difference between the second local temperature and the set temperature, control the air conditioner to adopt different air supply modes 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 temperature set by a user.

[0071] In one embodiment, different air supply modes may have different air outlet directions, different air outlets, different air outlet volumes, etc., which are not specifically limited in this embodiment.

[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, at least one of the speed of the indoor fan, the frequency of the compressor and the opening of the expansion valve is controlled according to a third difference between the average temperatures 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 temperature average value refers to the average value of the temperatures of different regions of the space where the air conditioner acts, for example, the upper half and the lower half of the space.

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

[0075] With this embodiment, different air supply modes and compressor frequencies are first used to supply air, which is beneficial to improving the temperature control efficiency of the air conditioner. At the same time, the temperature of the space where the air conditioner acts is less different from the set temperature. At this time, at least one of the indoor fan, compressor and expansion valve is controlled to control the temperature output of the air conditioner so that the third difference is within the first temperature range, and the third difference is accurately controlled, so that it is easy to stabilize the temperature of the space where the air conditioner acts near the set temperature, reduce the fluctuation of the indoor temperature, and improve the use experience of the air conditioner.

[0076] In a possible embodiment of the present application, the rotation speed, frequency and opening degree respectively correspond to preset value ranges;

[0077] The controlling of at least one of the rotation speed of the indoor fan, the frequency of the compressor and the opening of the expansion valve comprises:

[0078] The rotational speed, frequency and opening are controlled one by one and when the controlled parameter reaches the limit of the corresponding value interval, the parameters of the rotational speed, frequency and opening that have not reached the limit are controlled, wherein the limit includes the maximum value and the minimum value of the value interval.

[0079] In one embodiment, the value range includes two limits, namely a maximum value and a minimum value, which are specifically set according to cooling and heating.

[0080] By adopting this implementation method, the rotation speed, frequency and opening are controlled one by one, which makes it easy to improve the adjustment accuracy, thereby more accurately adjusting the third difference to the first temperature range, and achieving precise control of the third difference, so that it is easy to stabilize the temperature of the space where the air conditioner acts near the set temperature, reduce the fluctuation of the indoor temperature, and improve the user experience of the air conditioner.

[0081] Optionally, in an implementation of this embodiment, the controlling the speed, frequency and opening one by one and when the controlled parameter reaches the limit of the value interval corresponding to itself, controlling the parameter among the speed, frequency and opening that has not reached the limit includes:

[0082] When the air conditioner is cooling, if the third difference exceeds the maximum value of the first temperature interval, the speed, frequency and opening are controlled to increase one by one, and when the controlled parameter reaches the maximum value of the value interval corresponding to itself, the parameters of the speed, frequency and opening that have not reached the limit value are 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 are controlled to decrease one by one and when the controlled parameter reaches the minimum value of the corresponding value range, the parameters among the speed, frequency and opening that have not reached the limit value are controlled.

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

[0085] By adopting this implementation method, when the air conditioner is cooling and heating, the adjustment directions of the speed, frequency and opening are different, which is conducive to efficiently adjusting the third difference to the first temperature range and realizing precise control of the third difference, thereby facilitating the temperature of the space where the air conditioner acts to stabilize near the set temperature, reducing the fluctuation of indoor temperature and improving the user experience of the air conditioner.

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

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

[0088] If yes, maintain the current state of the air conditioner, wherein the current state of the air conditioner includes the current speed, the current frequency and the current opening degree;

[0089] Otherwise, the control of the parameters among the rotation speed, frequency and opening that have not reached the limit value is executed.

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

[0091] By adopting this implementation method, before controlling the parameters that have not reached the limit values ​​among the speed, frequency and opening, it is first determined whether the newly obtained third difference is within the first temperature range. If so, the current state of the air conditioner is maintained, which is beneficial to saving energy and extending the time that the third difference is within the first temperature range.

[0092] Optionally, in an implementation of this embodiment, 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;

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

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

[0095] By adopting this implementation, the rotation speed of the indoor fan is adjusted first, and finally the opening of the expansion valve is adjusted, which is conducive to improving the efficiency of adjusting the third difference to the first temperature range.

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

[0097] The method further comprises:

[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 be opened and the other is closed, and the indoor fan is controlled to operate at a first speed, the compressor is controlled to operate at a first frequency, and the opening of the expansion valve is controlled to be a first opening, wherein 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 is a value within a preset high opening range;

[0099] Among them, the maximum value of the low speed interval is less than the maximum 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 interval is greater than the maximum opening that the expansion valve can reach.

[0100] With this implementation, when entering the temperature control stage, the speed of the indoor fan, the frequency of the compressor and the opening of the expansion valve are all taken from a preset range, which is conducive to fine-tuning the third difference, thereby improving the accuracy of the adjustment and reducing the fluctuation of the indoor temperature.

[0101] Optionally, in an implementation of this embodiment, controlling the air conditioner to adopt different air supply modes to reduce the first difference and the second difference according to a first difference between the first local temperature and the set temperature and a second difference between the second local temperature and the set temperature includes:

[0102] The air supply mode of the air conditioner for the first local area and the frequency of the compressor are adjusted according to the size of the first difference, and when the first difference is less than the first temperature threshold, the air conditioner is controlled to adopt the air supply mode for the second local area.

[0103] According to this embodiment, before entering the temperature control stage, different air supply modes and compressor frequencies are used to supply air, which is beneficial to improving the temperature control efficiency of the air conditioner.

[0104] Optionally, in an 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 size of the first difference includes:

[0105] The smaller the first difference is, the smaller the air supply volume of the air supply method of the air conditioner for the first local area is, and the smaller the frequency of the compressor is.

[0106] Optionally, in an 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 method of 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 includes:

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

[0109] recalculating the first difference and when the recalculated first difference does not exceed the target threshold, operating the second air supply mode and the compressor operating at the second target frequency, wherein the second air supply mode is that both the upper air outlet and the lower air outlet are open, one of the upper air guide and the lower air guide guide guides the air, and the other is at a minimum air outlet position;

[0110] recalculating the first difference and when the recalculated first difference is less than the first temperature threshold, controlling the air conditioner to operate in a third air supply mode for the second local area and the compressor to operate at a third target frequency, wherein the third air supply mode is that one of the upper air outlet and the lower air outlet is opened;

[0111] Among them, the target threshold is greater than the first temperature threshold, the air supply volumes of the first air supply mode, the second air supply mode and the third air supply mode decrease successively, and the first target frequency, the second target frequency and the third target frequency decrease successively.

[0112] Optionally, in an 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 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 includes:

[0113] When the air conditioner is cooling, the first local area is the lower area of ​​the space where the air conditioner acts, the first local temperature is the temperature of the lower air inlet of the air conditioner, and the second local area is the upper area of ​​the space where the air conditioner acts, 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 works, 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 works, and the second local temperature is the temperature of the lower air inlet of the air conditioner.

[0115] An embodiment of the present application also provides an air conditioner, comprising a temperature control program, and the air conditioner adopts the above-mentioned control method when executing the temperature control program.

[0116] Optionally, in an 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-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The steps shown in the relevant flow chart can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in an order different from that here. In other words, the order of steps described in the foregoing embodiments is only an example, and it is also within the scope of protection of the embodiments of the present application to reasonably adjust the order of steps based on the content of the embodiments of the present application.

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

[0119] It should be noted that the set temperature is the target temperature set by the air conditioner;

[0120] Upper air inlet temperature: the indoor ambient temperature above the air inlet of the air conditioner;

[0121] Lower air inlet temperature: the indoor ambient temperature below the air inlet of the air conditioner;

[0122] Temperature control accuracy: used to measure the indoor temperature fluctuation. The higher the temperature control accuracy, the smaller the indoor temperature fluctuation.

[0123] The present application aims to propose a distributed air supply variable frequency air conditioner multi-mode air supply and precise temperature control mode control method, solve the problem that the traditional control scheme only adjusts the wind speed, improve the temperature control accuracy while ensuring the air conditioning effect, and thus improve the comfort. The core idea is that when the average room temperature is far from the set temperature, multiple intervals are divided according to the difference between the upper and lower ambient temperatures of the room and the set temperature. Each temperature interval corresponds to a certain action mode of the upper and lower air outlets and the air guide plates inside the air outlet, and by limiting the maximum operating frequency of the compressor in different intervals, the greater the temperature difference, the higher the compressor operating frequency, and the smaller the temperature difference, the lower the compressor operating frequency, thereby ensuring the energy efficiency of the air conditioner while reducing the risk of condensation. When the average room temperature is close to the set temperature, the air conditioner enters the precise temperature control mode, and according to 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 keep the air conditioning heat regulation consistent with the room heat change, thereby reducing the room temperature fluctuation and improving the air conditioning comfort.

[0124] The air conditioner corresponding to the present invention is a distributed air supply air conditioner, that is, the indoor unit of the air conditioner has upper and lower air outlets. There are air guide plates or other components that can change the air outlet effect inside the air outlet, and there are two temperature detection devices in the indoor unit of the air conditioner, respectively at the upper part of the air inlet and the lower part of the air inlet, which are used to detect the upper ambient temperature of the room and the lower ambient temperature of the room. The air conditioner can be a cabinet unit or other wall-mounted unit, window unit, etc. with upper and lower air outlets. The precise temperature control mode of the present invention is not only applicable to the situation where the room temperature is close to the set temperature after the air conditioner has been adjusted for a period of time, but also to the situation where the room temperature is close to the set temperature when the machine is just turned on. In normal temperature cooling and normal temperature heating, that is, when the outdoor temperature is 24-28°C, the precise temperature control mode can effectively reduce the frequency of compressor shutdowns and improve temperature comfort.

[0125] Example:

[0126] a. Air conditioning refrigeration operation, the specific flow chart is as follows Figure 2 As shown: when the refrigeration is turned on, the upper and lower air-discharging variable frequency cabinet delivers 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 lower air inlet temperature of the indoor unit and the set temperature is less than or equal to the set threshold value T1. If so, enter step b, otherwise the variable frequency air conditioner cabinet still delivers air in mode A, and the maximum operating frequency of the compressor is 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; and it continues to determine whether the difference between the current lower air inlet temperature of the indoor unit and the set temperature is less than or equal to the set threshold value T2. If so, proceed to step c; otherwise, it continues to determine whether the difference between the current upper air inlet temperature of the indoor unit and the set temperature is less than or equal to the set threshold value T4. If so, the air conditioner supplies air in mode B, and the maximum operating frequency of the compressor is limited to B1. Otherwise, it continues to determine whether the difference between the current lower air inlet temperature of the indoor unit and the set temperature is less than or equal to the set threshold value T1. If so, the air conditioner supplies air in mode B, and the maximum operating frequency of the compressor is limited to B1. Otherwise, it proceeds to step a;

[0128] c. The air conditioner now supplies air in mode C, and the maximum operating frequency of the compressor is limited to C1; and continue to determine whether the difference between the current air inlet temperature on the indoor unit and the set temperature is less than or equal to the set threshold value T1. If so, enter the refrigeration precise temperature control mode; otherwise, continue to determine whether the difference between the current air inlet temperature on the indoor unit and the set temperature is less than or equal to the set threshold value T2. If so, the air conditioner supplies air in mode C, and the maximum operating frequency of the compressor is limited to C1. Otherwise, continue to determine whether the difference between the current air inlet temperature on the indoor unit and the set temperature is less than or equal to the set threshold value T1. If so, the air conditioner supplies air in mode B, and the maximum operating frequency of the compressor is limited to B1. Otherwise, enter step a;

[0129] like Figure 3As shown, refrigeration precise temperature control mode:

[0130] (1) The air conditioner supplies air in mode D, and the air conditioner runs for a first preset time at a first preset indoor fan speed, a first preset frequency, and a first preset opening. The first preset indoor fan speed here must be taken within the first preset interval, and the first preset interval is the indoor fan speed interval for the air conditioner to maintain normal cooling operation under normal temperature; the first preset frequency here must be taken within the second preset interval, and the second preset interval is the frequency interval for the air conditioner to maintain normal cooling under normal temperature; the first preset opening here must be taken within the third preset interval, and the third preset interval is the opening interval for the air conditioner to maintain normal cooling operation under normal temperature; here, the first preset interval is a low indoor fan speed interval, the second preset interval is a low frequency interval, and the third preset interval is a high opening interval.

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

[0132] ①: a1: The speed of the indoor fan decreases at L rpm, and the real-time ΔT and the speed of the indoor fan are obtained. During the process, it is determined that ΔT ≥ T3. If so, it proceeds to ③. Otherwise, it continues to determine whether the speed of the indoor fan reaches the lower limit of the first preset interval. If so, it proceeds to a2. Otherwise, it proceeds to a1.

[0133] a2: The indoor fan speed runs at the lower limit frequency of the first preset interval, and the compressor frequency decreases at M rpm. The real-time ΔT and compressor frequency of the air conditioner are obtained, and ΔT≥T3 is judged in the process. If so, enter ③, otherwise continue to determine whether the compressor frequency reaches the lower limit of the second preset interval. If so, enter a3, otherwise enter a2;

[0134] a3: The speed of the indoor fan runs at the lower limit frequency of the first preset interval, the compressor frequency runs at the lower limit of the second preset interval, and the opening of the electronic expansion valve decreases at N revolutions per minute. The real-time ΔT and opening of the electronic expansion valve of the air conditioner are obtained, and it is judged that ΔT ≥ T3 during the process. If so, enter ③, otherwise continue to determine whether the opening of the electronic expansion valve reaches the lower limit of the third preset interval. If so, enter a4, otherwise enter a3;

[0135] a4: The compressor stops, the speed of the indoor fan runs at the lower limit frequency of the first preset interval, and the opening of the electronic expansion valve runs at the lower limit of the third preset interval. 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 speed of the indoor fan runs at the lower limit frequency of the first preset interval, and the opening of the electronic expansion valve runs at the lower limit of the third preset interval. Otherwise, return to (1).

[0136] ②: b1: The speed of the indoor fan increases at L rpm, and the real-time ΔT and the speed of the indoor fan of the air conditioner are obtained. During the process, it is determined that ΔT≤T2. If so, it proceeds to ③. Otherwise, it continues to determine whether the speed of the indoor fan reaches the upper limit of the first preset interval. If so, it proceeds to b2, otherwise it proceeds to b1.

[0137] b2: The indoor fan speed runs at the upper limit frequency of the first preset interval, and the compressor frequency increases at M rpm. The real-time ΔT and compressor frequency of the air conditioner are obtained, and it is judged that ΔT≤T2 during the process. If so, enter ③, otherwise continue to determine whether the compressor frequency reaches the lower limit of the second preset interval. If so, enter b3, otherwise enter b2;

[0138] b3: The speed of the indoor fan runs at the upper limit frequency of the first preset interval, the compressor frequency runs at the upper limit of the second preset interval, and the opening of the electronic expansion valve decreases at N revolutions per minute. The real-time ΔT and opening of the electronic expansion valve of the air conditioner are obtained, and it is judged that ΔT≤T2 during the process. If so, enter ③, otherwise continue to determine whether the opening of the electronic expansion valve reaches the upper limit of the third preset interval. If so, exit the refrigeration precise temperature control mode, otherwise enter b3;

[0139] Under the above-mentioned air supply control method, the variable frequency cabinet air conditioner 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 according to the difference between the upper and lower temperatures of the room and the set temperature, and adjust the indoor fan speed, compressor frequency and electronic expansion valve opening. While increasing the temperature rise and temperature drop rates, it can also reduce indoor temperature fluctuations and improve the accuracy of temperature control.

[0140] In the above scheme, the four air supply modes are described as follows:

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

[0142] Mode B air supply: The upper and lower air outlets are both opened and air is supplied simultaneously, the upper air sweeping component is running, and the lower air sweeping component is stopped and in the minimum air outlet position, which can effectively reduce the wind feeling at the bottom of the air conditioner and prevent excessive vertical temperature difference in the room;

[0143] Air supply in mode C: The lower air outlet is closed, the upper air outlet is opened, and only the upper air outlet supplies air. 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 reached the set temperature. Closing the lower air outlet can effectively prevent the lower part of the room from deviating from the set temperature. At the same time, opening the upper air outlet makes the upper part of the room 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 in the room from being too large;

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

[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 will gradually decrease, and the maximum operating frequency of the compressor can be reduced, thereby saving energy. At the same time, in the cooling mode, the lower air guide component is at the minimum air outlet position in mode B air supply, the lower air outlet is closed in mode C, and the lower air outlet is closed and the upper air guide component is at the minimum air outlet position in mode D, resulting in a reduction in the overall air output of the air conditioner. If the frequency is not changed, the air outlet temperature will decrease. When the air outlet temperature is lower than the indoor dew point temperature, there will be a risk of condensation. Therefore, in the cooling mode, when the air supply in modes B, C, and D gradually reduces the air outlet, it is also necessary to gradually reduce the maximum operating frequency of the compressor and increase the air outlet temperature to avoid condensation.

[0146] According to experiments, 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 is over-cooling, at which time the indoor temperature is already lower than the set temperature by a certain range;

[0148] ② Moderate cooling, at which time the indoor temperature is just lower than the set temperature and very close to the set temperature;

[0149] ③ The cooling is insufficient and the indoor temperature is higher than the set temperature.

[0150] Air conditioning heating operation, the specific flow chart is as follows Figure 4 As shown:

[0151] d. When the heating is turned on, the upper and lower air-discharging inverter cabinets supply air in mode E, and the maximum operating frequency of the compressor is limited to E1; and during the process, it is determined whether the difference between the set temperature and the current air inlet temperature of the indoor unit is less than or equal to the set threshold value T1. If so, enter step e, otherwise the inverter air-conditioning cabinet still supplies air in mode E, and the maximum operating frequency of the compressor is limited to E1;

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

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

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

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

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

[0157] ④: c1: the speed of the indoor fan decreases by 0 rpm, and the real-time ΔT and the speed of the indoor fan of the air conditioner are obtained. During the process, it is determined that ΔT≤T1. If so, it proceeds to ⑥. Otherwise, it continues to determine whether the speed of the indoor fan reaches the lower limit of the fourth preset interval. If so, it proceeds to c2, otherwise it proceeds to c1;

[0158] c2: the indoor fan speed runs at the lower limit frequency of the fourth preset interval, the compressor frequency decreases at P rpm, the real-time ΔT and compressor frequency of the air conditioner are obtained, and during the process, it is determined that ΔT≤T1, if yes, then enter ⑥, otherwise continue to determine whether the compressor frequency reaches the lower limit of the fifth preset interval, if yes, then enter c3, otherwise enter c2;

[0159] c3: the speed of the indoor fan runs at the lower limit frequency of the fourth preset interval, the compressor frequency runs at the lower limit of the fifth preset interval, the opening of the electronic expansion valve decreases at Q revolutions per minute, and the real-time ΔT and opening of the electronic expansion valve of the air conditioner are obtained. During the process, it is judged that ΔT≤T1. If so, it goes to ⑥, otherwise it continues to determine whether the opening of the electronic expansion valve reaches the lower limit of the sixth preset interval. If so, it goes to c4, otherwise it goes to c3;

[0160] c4: The compressor stops, the speed of the indoor fan runs at the lower limit frequency of the fourth preset interval, and the opening of the electronic expansion valve runs at the lower limit of the sixth preset interval. In 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 speed of the indoor fan runs at the lower limit frequency of the fourth preset interval, and the opening of the electronic expansion valve runs at the lower limit of the sixth preset interval. Otherwise, return to (3).

[0161] ⑤: d1: The speed of the indoor fan increases at 0 rpm, and the real-time ΔT and the speed of the indoor fan of the air conditioner are obtained. In the process, it is determined that ΔT ≥ T2. If so, it proceeds to ⑥. Otherwise, it continues to determine whether the speed of the indoor fan reaches the upper limit of the fourth preset interval. If so, it proceeds to d2. Otherwise, it proceeds to d1.

[0162] d2: The indoor fan speed runs at the upper limit frequency of the fourth preset interval, and the compressor frequency increases at P rpm. The real-time ΔT and compressor frequency of the air conditioner are obtained, and it is determined that ΔT ≥ T2 during the process. If so, enter ⑥, otherwise continue to determine whether the compressor frequency reaches the upper limit of the fifth preset interval. If so, enter d3, otherwise enter d2;

[0163] d3: The speed of the indoor fan runs at the upper limit frequency of the fourth preset interval, the compressor frequency runs at the upper limit of the fifth preset interval, and the opening of the electronic expansion valve increases at Q revolutions per minute. The real-time ΔT and opening of the electronic expansion valve of the air conditioner are obtained, and during the process, it is judged that ΔT ≥ T2. If so, enter ⑥, otherwise continue to determine whether the opening of the electronic expansion valve reaches the upper limit of the sixth preset interval. If so, exit the heating precise temperature control mode, otherwise enter d3;

[0164] In the above scheme, the four air supply modes are described as follows:

[0165] E-mode air supply: The upper and lower air outlets are both opened to supply air at the same time, and the upper and lower air sweeping components operate at the same time, which can increase the air disturbance in the room, improve the uniformity of the room temperature, increase the temperature rise rate, and make the room temperature rise quickly to approach the set temperature;

[0166] Mode F air supply: The upper and lower air outlets are both opened and air is supplied simultaneously, the lower air sweeping component is running, and the upper air sweeping component is stopped and in the minimum air outlet position, which can effectively reduce the wind feeling on the upper part of the air conditioner and prevent excessive vertical temperature difference in the room;

[0167] G mode air supply: the upper air outlet is closed, the lower air outlet is opened, only the lower air outlet is supplying 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 reached the set temperature. Closing the upper air outlet can effectively prevent the upper temperature of the room from deviating from the set temperature. At the same time, opening the lower air outlet makes the lower temperature of the room 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, the lower air outlet is opened, and air is supplied only from the lower air outlet. The lower air sweeping component stops running and is in the minimum air outlet 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 temperature of the room is closest to the set temperature. The air conditioner only blows out weak hot air from the lower air outlet to keep the room temperature stable.

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

[0170] The value ranges of the heating temperature differences T1, T2, T3 and T4 are the same as those for cooling.

[0171] Among them, ④ is overheating, at which time the indoor temperature is higher than the set temperature by a certain range;

[0172] ⑤ Moderate heating, at which time the indoor temperature is just above the set temperature and very close to the set temperature;

[0173] ⑥ The heating is insufficient and the indoor temperature is lower than the set temperature.

[0174] The sequence of serial numbers or introduction of the embodiments of the present application is for description only and does 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. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

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

[0177] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0178] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of 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, the process or function described in the embodiment of the present application is generated in whole or in part. 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 computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access, or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiment of the present application may be a non-volatile storage medium, in other words, 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 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 relevant 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 three-dimensional virtual scene, the device information of the client, and the scene interaction information involved in the embodiments of this application are all obtained with full authorization.

[0180] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner comprises an indoor fan, a compressor, an expansion valve and an indoor heat exchanger, wherein the expansion valve is used to adjust the refrigerant entering the indoor heat exchanger, and the method comprises: Acquire a first local temperature of a first local area of ​​the air-conditioned space and a second local temperature of a second local area of ​​the air-conditioned space; According to a first difference between the first local temperature and the set temperature and a second difference between the second local temperature and the set temperature, controlling the air conditioner to adopt different air supply modes to reduce 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, at least one of the speed of the indoor fan, the frequency of the compressor and the opening of the expansion valve is controlled according to a third difference between the temperature averages 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.

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

3. The air conditioner control method according to claim 2, characterized in that: The speed, frequency and opening are controlled one by one and when the controlled parameter reaches the limit of the value interval corresponding to itself, the parameter among the speed, frequency and opening that has not reached the limit is controlled, including: When the air conditioner is cooling, if the third difference exceeds the maximum value of the first temperature interval, the speed, frequency and opening are controlled to increase one by one, and when the controlled parameter reaches the maximum value of the value interval corresponding to itself, the parameters of the speed, frequency and opening that have not reached the limit value are controlled; 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 are controlled to decrease one by one and when the controlled parameter reaches the minimum value of the corresponding value range, the parameters among the speed, frequency and opening that have not reached the limit value are controlled.

4. The air conditioner control method according to claim 2, characterized in that: Before controlling the parameters among the rotation speed, frequency and opening that have not reached the limit value, the method further includes: determining whether the third difference is within the first temperature range; If yes, maintain the current state of the air conditioner, wherein the current state of the air conditioner includes the current speed, the current frequency and the current opening degree; Otherwise, the control of the parameters among the rotation speed, frequency and opening that have not reached the limit value is executed.

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

6. The air conditioner control method according to any one of claims 1 to 5, characterized in that: The air conditioner comprises an upper air outlet and a lower air outlet; The method 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 be opened and the other is closed, and the indoor fan is controlled to operate at a first speed, the compressor is controlled to operate at a first frequency, and the opening of the expansion valve is controlled to be a first opening, wherein 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 is a value within a preset high opening range; Among them, the maximum value of the low speed interval is less than the maximum 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 interval is greater than the maximum opening that the expansion valve can reach.

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

8. The air conditioner control method according to claim 7, characterized in that: The 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 includes: The smaller the first difference is, the smaller the air supply volume of the air supply method of the air conditioner for the first local area is, and the smaller the frequency of the compressor is.

9. The air conditioner control method according to claim 8, characterized in that: The air conditioner comprises 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; The method of 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 includes: If the first difference exceeds a preset target threshold, a first air supply mode is operated and the compressor operates at a first target frequency, wherein the first air supply mode is that both the upper air outlet and the lower air outlet are opened, and both the upper air guide and the lower air guide guide guide air; recalculating the first difference and when the recalculated first difference does not exceed the target threshold, operating the second air supply mode and the compressor operating at the second target frequency, wherein the second air supply mode is that both the upper air outlet and the lower air outlet are open, one of the upper air guide and the lower air guide guide guides the air, and the other is at a minimum air outlet position; recalculating the first difference and when the recalculated first difference is less than the first temperature threshold, controlling the air conditioner to operate in a third air supply mode for the second local area and the compressor to operate at a third target frequency, wherein the third air supply mode is that one of the upper air outlet and the lower air outlet is opened; Among them, the target threshold is greater than the first temperature threshold, the air supply volumes of the first air supply mode, the second air supply mode and the third air supply mode decrease successively, and the first target frequency, the second target frequency and the third target frequency decrease successively.

10. The air conditioner control method according to claim 9, characterized in that: The method of 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 includes: When the air conditioner is cooling, the first local area is the lower area of ​​the space where the air conditioner acts, the first local temperature is the temperature of the lower air inlet of the air conditioner, and the second local area is the upper area of ​​the space where the air conditioner acts, and the second local temperature is the temperature of the upper air inlet of the air conditioner; When the air conditioner is heating, the first local area is the upper area of ​​the space where the air conditioner works, 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 works, and the second local temperature is the temperature of the lower air inlet of the air conditioner.

11. An air conditioner, characterized in that: The temperature control program is included, and the air conditioner adopts the control method described in any one of claims 1 to 10 when executing the temperature control program.

12. The air conditioner according to claim 11, characterized in that: The air conditioner includes at least one of a cabinet air conditioner, a wall-mounted air conditioner, a window air conditioner and a dehumidifier.

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