Air conditioner, refrigeration method and device thereof and storage medium

Abstract

The invention discloses an air conditioner, a refrigeration method and device thereof and a storage medium. An indoor unit of the air conditioner comprises a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator and a second air outlet corresponding to the second evaporator. The method comprises the steps that in a target refrigeration mode, an indoor temperature detection value, an indoor set temperature value, a first detection parameter of a first evaporator and a second detection parameter of a second evaporator are obtained; based on the indoor temperature detection value and the indoor set temperature value, a first control parameter and a second control parameter are determined, the first control parameter corresponds to the first evaporator, and the second control parameter corresponds to the second evaporator; and based on the first detection parameter and the first control parameter, and / or the second detection parameter and the second control parameter, the operation parameter of the air conditioner is controlled. By means of the method, the refrigeration performance of the air conditioner can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioner and a refrigeration method, device, and storage medium thereof. Background Art

[0002] Existing air conditioner indoor units generally have large air volume and low air supply temperature when large cooling capacity and rapid cooling are required. Such air blowing directly to the user will make him feel uncomfortable, and it is also easy to cause the user to catch a cold or cause joint pain.

[0003] In the related art, the controller of the indoor unit of the air conditioner generally identifies the user's position first, and controls the air outlet to blow air away from the user's position, so that the cold air does not blow directly to the user.

[0004] When the indoor temperature is high at the beginning, users usually have the need to cool the room quickly. However, the related technology directly avoids the user's way of supplying air, making the cooling function of the air conditioner relatively limited and unable to meet user needs. Summary of the invention

[0005] In view of this, the embodiments of the present application provide an air conditioner and a refrigeration method, device, and storage medium thereof, aiming to improve the refrigeration performance of the air conditioner.

[0006] In a first aspect, an embodiment of the present application provides a refrigeration method for an air conditioner, wherein an indoor unit of the air conditioner comprises: a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator, and a second air outlet corresponding to the second evaporator; the method comprises:

[0007] In a target cooling mode, obtaining an indoor temperature detection value, an indoor set temperature value, a first detection parameter of the first evaporator, and a second detection parameter of the second evaporator;

[0008] Determine a first control parameter and a second control parameter based on the indoor temperature detection value and the indoor set temperature value, wherein the first control parameter corresponds to the first evaporator and the second control parameter corresponds to the second evaporator;

[0009] Based on the first detection parameter and the first control parameter, and / or the second detection parameter and the second control parameter, an operating parameter of the air conditioner is controlled.

[0010] In the above solution, the determining of the first control parameter and the second control parameter based on the indoor temperature detection value and the indoor set temperature value includes:

[0011] Obtaining a temperature difference between the indoor temperature detection value and the indoor set temperature value;

[0012] Based on the temperature difference and a preset first mapping relationship, the temperature difference interval in which the temperature difference is located and the matching first control parameter and second control parameter are determined; wherein the first mapping relationship stores the correspondence between the temperature difference interval and the first control parameter and the second control parameter.

[0013] In the above solution, the first detection parameter includes a detection value representing the refrigerant at the first evaporator; the first control parameter includes a first threshold value; and the operation parameter of the air conditioner is controlled based on the first detection parameter and the first control parameter, including:

[0014] Based on the detection value and the first threshold, a first difference is calculated, where the first difference is the difference between the detection value and the first threshold;

[0015] Based on the first difference and a preset second mapping relationship, the frequency of the compressor is adjusted; wherein the second mapping relationship stores a correspondence between a difference range interval and a frequency adjustment amplitude.

[0016] In the above solution, the first detection parameter also includes the superheat value of the first evaporator; the first control parameter also includes a second threshold value; and the operating parameters of the air conditioner are controlled based on the first detection parameter and the first control parameter, including:

[0017] Based on the superheat value of the first evaporator and the second threshold, a second difference is calculated, where the second difference is the difference between the superheat value of the first evaporator and the second threshold;

[0018] Based on the second difference and a preset third mapping relationship, the opening value of the first electronic expansion valve corresponding to the first evaporator is adjusted; wherein the third mapping relationship stores the correspondence between the difference range interval and the opening value adjustment amplitude; wherein the superheat value of the first evaporator is the difference between the detection value of the refrigerant at the first position of the first evaporator and the detection value of the refrigerant at the second position.

[0019] In the above solution, the second detection parameter includes the superheat value of the second evaporator; the second control parameter includes a third threshold value; and the operation parameters of the air conditioner are controlled based on the second detection parameter and the second control parameter, including:

[0020] Based on the superheat value of the second evaporator and the third threshold, a third difference is calculated, where the third difference is the difference between the superheat value of the second evaporator and the third threshold;

[0021] Based on the third difference and a preset fourth mapping relationship, adjusting the opening value of the second electronic expansion valve corresponding to the second evaporator; wherein the fourth mapping relationship stores a corresponding relationship between a difference range interval and an opening value adjustment amplitude;

[0022] The superheat value of the second evaporator is a difference between a detection value of the refrigerant at a first position of the second evaporator and a detection value of the refrigerant at a second position.

[0023] In the above solution, adjusting the frequency of the compressor based on the first difference and a preset second mapping relationship includes:

[0024] Determine, according to the first difference and a preset second mapping relationship, a target difference range in which the first difference is located, and a target frequency adjustment amplitude matching the target difference range;

[0025] The frequency of the compressor is updated according to the target frequency adjustment amplitude.

[0026] In the above solution, after the frequency of the compressor is updated according to the target frequency adjustment amplitude, the method further includes:

[0027] Determine a target frequency modulation period that matches the target difference range interval according to the target difference range interval and the second mapping relationship; wherein the second mapping relationship further stores a correspondence between the difference range interval and the frequency modulation period; and the difference range interval is negatively correlated with the frequency modulation period;

[0028] When the target frequency modulation period is reached, the step of adjusting the frequency of the compressor for the next time is performed.

[0029] In the above solution, adjusting the opening value of the first electronic expansion valve corresponding to the first evaporator based on the second difference and a preset third mapping relationship includes:

[0030] According to the second difference and a preset third mapping relationship, determining a target difference range segment in which the second difference is located, and a target opening value adjustment amplitude matching the target difference range segment;

[0031] The opening value of the first electronic expansion valve is updated according to the target opening value adjustment range.

[0032] In the above solution, after the opening value of the first electronic expansion valve is updated by adjusting the amplitude according to the target opening value, the method further includes:

[0033] Determine a target value adjustment period that matches the target value difference range segment according to the target value difference range segment and the third mapping relationship; wherein the third mapping relationship further stores a correspondence between the value difference range segment and the value adjustment period;

[0034] When the target value adjustment period is reached, the step of adjusting the opening value of the first electronic expansion valve for the next time is performed.

[0035] In the above solution, an air guide plate is provided at the first air outlet of the air conditioner, and the method further comprises:

[0036] Controlling the air guide plate to open to a set angle;

[0037] The first air outlet is an air outlet located above the second air outlet, and the set angle is used to make the airflow at the first air outlet be above a set height.

[0038] In the above solution, the indoor unit of the air conditioner further includes a first wind wheel, and the first wind wheel delivers air through the first air outlet; in the target cooling mode, the method further includes:

[0039] The first wind wheel is controlled to operate at a first wind speed level; wherein the first wind speed level is a rated maximum wind speed level.

[0040] In the above solution, the indoor unit of the air conditioner further includes a second wind wheel, and the second wind wheel delivers air through the second air outlet; in the target cooling mode, the method further includes:

[0041] The second wind wheel is controlled to operate at a second wind speed level; wherein the second wind speed level is any one of the set wind speed levels.

[0042] In a second aspect, an embodiment of the present application further provides a control device for an air conditioner, wherein an indoor unit of the air conditioner comprises: a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator, and a second air outlet corresponding to the second evaporator; the device comprises:

[0043] A data acquisition module, used for acquiring an indoor temperature detection value, an indoor set temperature value, a first detection parameter of the first evaporator and a second detection parameter of the second evaporator in a target cooling mode;

[0044] a control parameter determination module, configured to determine a first control parameter and a second control parameter based on the indoor temperature detection value and the indoor set temperature value, wherein the first control parameter corresponds to the first evaporator and the second control parameter corresponds to the second evaporator;

[0045] An operation control module is used to control the operation parameters of the air conditioner based on the first detection parameter and the first control parameter, and / or the second detection parameter and the second control parameter.

[0046] In the third aspect, an embodiment of the present application further provides an air conditioner, wherein an indoor unit of the air conditioner comprises: a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator, and a second air outlet corresponding to the second evaporator; the air conditioner comprises: a processor and a memory for storing a computer program that can be run on the processor, wherein the processor, when running the computer program, executes the steps of the method described in the first aspect.

[0047] In a fourth aspect, an embodiment of the present application further provides a computer storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in the first aspect are implemented.

[0048] The air conditioner and its refrigeration method, device, and storage medium provided in the embodiment of the present application, the indoor unit of the air conditioner includes: a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator, and a second air outlet corresponding to the second evaporator. In the target refrigeration mode, the indoor temperature detection value, the indoor set temperature value, the first detection parameter of the first evaporator, and the second detection parameter of the second evaporator are obtained; based on the indoor temperature detection value and the indoor set temperature value, the first control parameter and the second control parameter are determined, the first control parameter corresponds to the first evaporator, and the second control parameter corresponds to the second evaporator; based on the first detection parameter and the first control parameter, and / or, the second detection parameter and the second control parameter, the operating parameters of the air conditioner are controlled. According to the detection parameters of the evaporators corresponding to the two air outlets, and the corresponding control parameters, the operating parameters of the air conditioner are controlled, and large cooling capacity cooling and cool wind direct blowing can be achieved respectively, and large cooling capacity cooling and cool wind direct blowing can also be achieved simultaneously, so that the user can experience rapid cooling and cool wind when the temperature is high when just entering the room, which can meet the user's demand for direct blowing. In this way, the refrigeration function of the air conditioner in the present application is more diversified. In addition, since the control parameters of the two evaporators are determined based on the indoor temperature detection value and the indoor set temperature value, the accuracy of controlling the operating parameters of the air conditioner can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic side view of an indoor unit of an air conditioner in one embodiment of the present application;

[0050] Figure 2 A schematic diagram of a flow chart of a method for executing a refrigeration process of an air conditioner in one embodiment of the present application;

[0051] Figure 3 A schematic diagram of a flow chart of a method for executing a refrigeration process of an air conditioner in another embodiment of the present application;

[0052] Figure 4 This is a schematic diagram of the installation of an electronic expansion valve in an air conditioner indoor unit in another embodiment of the present application;

[0053] Figure 5 A schematic diagram of a flow chart of a method for executing a refrigeration method of an air conditioner in an application embodiment of the present application;

[0054] Figure 6 This is a schematic diagram of the structure of a control device for an air conditioner in one embodiment of the present application;

[0055] Figure 7 Schematic diagram of the structure of an air conditioner in one embodiment of the present application. DETAILED DESCRIPTION

[0056] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0058] The air conditioner of the present application may include at least one indoor unit and at least one outdoor unit. For example, the air conditioner includes an indoor unit. Figure 1 The figure shows a side view of an indoor unit, and the indoor unit of the air conditioner includes a first evaporator 201, a second evaporator 202, a first air outlet 203 corresponding to the first evaporator 201, and a second air outlet 204 corresponding to the second evaporator 202. The first air outlet 203 and the second air outlet 204 are distributed along the longitudinal direction, and the first air outlet 203 may be located at the top and the second air outlet 204 may be located at the bottom. Taking the air supply from the first air outlet 203 as an example, how the indoor unit supplies air to the room is explained. The indoor air passes through the indoor return air grille 205 and the first evaporator 201 in sequence and is sent out from the first air outlet 203. In the process of passing through the first evaporator 201, it will be affected by the heat absorption of the refrigerant in the first evaporator 201, so that the air supply temperature is reduced. The air supply from the second air outlet 204 has the same principle as the air supply from the first air outlet 203, which will not be described in detail here. In addition, the indoor unit also includes a fresh air outlet 206.

[0059] Figure 2 A cooling method for an air conditioner provided in one embodiment of the present application is provided. The executor of the cooling method for an air conditioner provided in this embodiment may be an air conditioner. The cooling method for an air conditioner provided in this embodiment includes the following steps:

[0060] Step 101 : in a target cooling mode, obtaining an indoor temperature detection value, an indoor set temperature value, a first detection parameter of the first evaporator, and a second detection parameter of the second evaporator.

[0061] Here, the target cooling mode refers to the comfortable rapid cooling mode, which is different from the usual cooling mode. The difference is that in this cooling mode, large cooling capacity cooling and cool wind blowing can be achieved separately, or large cooling capacity cooling and cool wind blowing can be achieved at the same time, so that users can experience rapid cooling and cool wind when they just enter the room with high temperature, which can meet the user's demand for direct wind blowing. Here, the temperature of the cool wind is the air supply temperature that is higher than the set temperature. The difference between cool wind and cold wind is that the temperature of cool wind is higher than that of cold wind.

[0062] Among them, the indoor temperature detection value is the temperature value of the indoor environment actually measured by the air conditioner. The indoor set temperature value is the air supply temperature value set by the user. The first detection parameter is a parameter related to the refrigeration efficiency of the first evaporator measured by the air conditioner. The second detection parameter is a parameter related to the refrigeration efficiency of the second evaporator measured by the air conditioner. The refrigeration efficiency of the first evaporator and the second evaporator, that is, the heat exchange efficiency of the refrigerant in the pipelines of the first evaporator and the second evaporator.

[0063] Step 102: Determine a first control parameter and a second control parameter based on the indoor temperature detection value and the indoor set temperature value.

[0064] The first control parameter corresponds to the first evaporator, and is a parameter set to be related to the refrigeration efficiency of the first evaporator. The second control parameter corresponds to the second evaporator, and is a parameter set to be related to the refrigeration efficiency of the second evaporator.

[0065] Here, the first control parameter and the second control parameter may be the same or different for different indoor temperature detection values ​​and indoor set temperature values.

[0066] Step 103: Control the operating parameters of the air conditioner based on the first detection parameter and the first control parameter, and / or the second detection parameter and the second control parameter.

[0067] The operating parameters of the air conditioner refer to the operating parameters of the air conditioner related to the control of the air supply temperature. It is understandable that different operating parameters of the air conditioner correspond to different air supply temperatures. The present application controls the air supply temperature of the two air outlets by controlling the operating parameters of the air conditioner.

[0068] Here, the air conditioner can control the operating parameters of the air conditioner according to the first detection parameter and the first control parameter. The operating parameters of the air conditioner can also be controlled according to the second detection parameter and the second control parameter. The operating parameters of the air conditioner can also be controlled according to the first detection parameter and the first control parameter, and also according to the second detection parameter and the second control parameter. For the first method, the air conditioner can realize the regulation of the supply air temperature of the first air outlet, for the second method, the air conditioner can realize the regulation of the supply air temperature of the second air outlet, and for the third method, the air conditioner can realize the regulation of the supply air temperature of the first air outlet and the second air outlet at the same time.

[0069] In the present application, in the target cooling mode, the indoor temperature detection value, the indoor set temperature value, the first detection parameter of the first evaporator and the second detection parameter of the second evaporator are obtained; based on the indoor temperature detection value and the indoor set temperature value, the first control parameter and the second control parameter are determined, the first control parameter corresponds to the first evaporator, and the second control parameter corresponds to the second evaporator; based on the first detection parameter and the first control parameter, and / or, the second detection parameter and the second control parameter, the operating parameters of the air conditioner are controlled. In the target cooling mode, the present application controls the operating parameters of the air conditioner according to the detection parameters of the evaporators corresponding to the two air outlets, and the corresponding control parameters, which can respectively realize large cooling capacity cooling and cool wind blowing, and can also realize large cooling capacity cooling and cool wind blowing at the same time, so that the user can experience rapid cooling and cool wind blowing when the temperature is high when just entering the room, which can meet the user's demand for direct blowing. In this way, the cooling function of the air conditioner in the present application is more diversified. In addition, since the control parameters of the two evaporators are determined based on the indoor temperature detection value and the indoor set temperature value, the accuracy of controlling the operating parameters of the air conditioner can be further improved.

[0070] In one embodiment, if Figure 3 As shown, based on the indoor temperature detection value and the indoor set temperature value, determining the first control parameter and the second control parameter includes:

[0071] Step 301, obtaining the temperature difference between the indoor temperature detection value and the indoor set temperature value.

[0072] That is, the temperature difference is the difference obtained by subtracting the indoor set temperature value from the indoor temperature detection value.

[0073] Step 302: Based on the temperature difference and a preset first mapping relationship, determine the temperature difference interval in which the temperature difference is located and the matching first control parameter and second control parameter.

[0074] The first mapping relationship is pre-stored in the air conditioner, and the first mapping relationship stores the corresponding relationship between the temperature difference interval and the first control parameter and the second control parameter. Here, the temperature difference interval refers to the range interval of the temperature difference. For example, the temperature difference interval in the first mapping relationship includes greater than 8°C, greater than 4°C and less than 8°C, less than 4°C, etc. If the temperature difference in step 201 is 5°C, it can be determined to fall within the interval greater than 4°C and less than 8°C.

[0075] In this embodiment, the temperature difference between the indoor temperature detection value and the indoor set temperature value is obtained; based on the temperature difference and a preset first mapping relationship, the temperature difference interval in which the temperature difference is located and the matching first control parameter and second control parameter are determined; wherein the first mapping relationship stores the corresponding relationship between the temperature difference interval and the first control parameter and the second control parameter. Since the control parameters of the two evaporators are determined based on the temperature difference, the first mapping relationship has multiple temperature difference intervals, so the division and determination of the control parameters are more detailed, so that the granularity of the supply air temperature regulation is higher.

[0076] In one embodiment, the first detection parameter includes a detection value of the refrigerant at the first evaporator; the first control parameter includes a first threshold value; and based on the first detection parameter and the first control parameter, controlling the operating parameters of the air conditioner includes the following steps:

[0077] a. Calculate a first difference based on the detection value and the first threshold.

[0078] Among them, the detection value of the refrigerant at the first evaporator can be the temperature of the refrigerant inside the first evaporator measured by the temperature sensor, or the pressure of the refrigerant inside the first evaporator measured by the pressure sensor. The temperature of the refrigerant can also be called the saturation temperature of the refrigerant. The saturation temperature of the refrigerant is the temperature corresponding to when the refrigerant has just completely evaporated and has completely changed from liquid to gas. If the pressure of the refrigerant is measured, the air conditioner needs to convert the pressure of the refrigerant into the temperature of the refrigerant. For example, the air conditioner queries the material property table of the refrigerant stored in advance to determine the temperature corresponding to the pressure of the refrigerant and obtain the temperature of the refrigerant. Here, the material property table of the refrigerant stores the corresponding relationship between the pressure and the saturation temperature of the refrigerant. In addition, the change of the detection value of the refrigerant in the first evaporator is related to the frequency of the compressor. The greater the frequency of the compressor, the faster the flow rate of the refrigerant in the first evaporator pipeline, which will make the temperature of the refrigerant lower. Conversely, the smaller the frequency of the compressor, the slower the flow rate of the refrigerant in the first evaporator pipeline, which will increase the temperature of the refrigerant.

[0079] In one embodiment, the temperature of the refrigerant is measured at a middle position of the first evaporator. The middle position is selected to detect the temperature because the temperature of the refrigerant at the middle position is relatively the most stable.

[0080] The first threshold is a threshold of a pre-set refrigerant detection value. The first threshold corresponds to the supply air temperature adjustment value of the first air outlet. The first threshold can be set equal to or less than the temperature difference. For example, if the temperature difference is 8.5°C, the first threshold can be 7°C.

[0081] The first difference is the difference obtained by subtracting the first threshold from the detection value. When the detection value is the temperature of the refrigerant at the middle position of the first evaporator, the first difference is the difference between the temperature of the refrigerant measured at the middle position of the first evaporator and the threshold value of the refrigerant set at the middle position of the first evaporator.

[0082] b. Adjusting the frequency of the compressor based on the first difference and a preset second mapping relationship.

[0083] The second mapping relationship is pre-stored in the air conditioner, and the second mapping relationship stores the corresponding relationship between the difference range interval and the frequency adjustment amplitude.

[0084] According to the first difference and the second mapping relationship, the difference range interval of the first difference and the corresponding frequency adjustment amplitude can be determined. Therefore, the air conditioner can adjust the frequency of the compressor based on the first difference and the second mapping relationship.

[0085] In this embodiment, based on the detection value and the first threshold, a first difference is obtained, and the first difference is the difference between the detection value and the first threshold; based on the first difference and a preset second mapping relationship, the frequency of the compressor is adjusted; wherein the second mapping relationship stores a correspondence between a difference range interval and a frequency adjustment amplitude. Since the frequency adjustment amplitude of the compressor is determined based on the first difference between the detection value and the first threshold, and the preset second mapping relationship, it can be ensured that the frequency adjustment amplitude of the compressor can accurately achieve the regulation of the supply air temperature.

[0086] In one embodiment, adjusting the frequency of the compressor based on the first difference and a preset second mapping relationship comprises the following steps:

[0087] a. According to the first difference and a preset second mapping relationship, determine a target difference range in which the first difference is located, and a target frequency adjustment amplitude matching the target difference range.

[0088] The target frequency adjustment amplitude refers to the amplitude by which the frequency of the compressor needs to be adjusted this time based on the last adjustment.

[0089] b. Update the frequency of the compressor according to the target frequency adjustment amplitude.

[0090] That is, based on the frequency of the compressor adjusted last time, the frequency of the compressor is updated in combination with the target frequency adjustment range.

[0091] When adjusting the frequency of the compressor for the first time, the operating frequency corresponding to the compressor just starting to work in the target cooling mode can be used as the reference. Each subsequent adjustment is based on the corresponding frequency of the last adjusted compressor as the reference, combined with the target frequency adjustment range determined this time, to determine the frequency of the compressor after this adjustment.

[0092] After each adjustment of the compressor frequency, the difference range is determined based on the currently determined first difference, and then the corresponding target frequency adjustment amplitude is determined. This process is repeated until the target cooling mode is exited or the compressor is shut down.

[0093] Exemplarily, the second mapping relationship is shown in Table 1, where X represents the first difference, wherein:

[0094] Table 1

[0095]

[0096] Here, the larger the difference range is, the greater the detection value of the first evaporator is above the first threshold value, the higher the room temperature is, and in order to quickly cool down the room, the more the frequency adjustment amplitude of the compressor needs to be increased. The smaller the difference range is, the smaller the detection value of the first evaporator is below the first threshold value, the lower the room temperature is, and the room temperature needs to be appropriately raised, so the frequency adjustment amplitude of the compressor needs to be reduced.

[0097] In this embodiment, according to the first difference and the preset second mapping relationship, the target difference range interval in which the first difference is located and the target frequency adjustment amplitude matching the target difference range interval are determined; according to the target frequency adjustment amplitude, the frequency of the compressor is updated. Since the target frequency adjustment amplitude is determined according to the first difference and the target difference range interval in which it is located, the frequency of the compressor is updated based on the target frequency adjustment amplitude, so that the reliability of the frequency update of the compressor can be ensured.

[0098] In one embodiment, after the amplitude is adjusted according to the target frequency and the frequency of the compressor is updated, the following steps are further included:

[0099] a. Determine a target frequency modulation period matching the target difference range according to the target difference range and the second mapping relationship.

[0100] The second mapping relationship further stores a corresponding relationship between the difference range interval and the frequency modulation period. The frequency modulation period is the time required between two frequency adjustment processes of the compressor.

[0101] In the second mapping relationship, the difference range interval is negatively correlated with the frequency modulation period. Compared with the frequency modulation period with equal time interval, the negative correlation here can make the frequency modulation period with unequal time interval. This setting can enter the next frequency adjustment faster when the first difference is large, thereby achieving rapid cooling.

[0102] The target frequency modulation period is the frequency modulation period corresponding to the first difference. Exemplarily, the second mapping relationship is shown in Table 2:

[0103] Table 2

[0104]

[0105] Wherein, X represents the first difference. When the first difference falls within the difference range of 1≤X<2, the next adjustment is performed at an interval of 120 seconds.

[0106] b. When the target frequency modulation period is reached, the step of adjusting the frequency of the compressor for the next time is executed.

[0107] That is, when the target frequency modulation period is reached, a new round of steps of obtaining a first difference based on the detection value and the first threshold value and adjusting the frequency of the compressor based on the first difference and a preset second mapping relationship is performed. In the new round of steps of adjusting the frequency of the compressor, the detection value is obtained in the new round of steps.

[0108] In this embodiment, a target frequency modulation period that matches the target difference range interval is determined according to the target difference range interval and the second mapping relationship; wherein the second mapping relationship also stores a correspondence between the difference range interval and the frequency modulation period; and the difference range interval is negatively correlated with the frequency modulation period; when the target frequency modulation period is reached, the step of adjusting the frequency of the compressor is performed next time. Since the target frequency modulation period is determined according to the first difference and the target difference range interval in which it is located, updating the frequency of the compressor based on the target frequency modulation period can ensure that the room can be cooled quickly.

[0109] In one embodiment, the first detection parameter further includes a superheat value of the first evaporator; the first control parameter further includes a second threshold value; and based on the first detection parameter and the first control parameter, controlling the operating parameters of the air conditioner includes the following steps:

[0110] a. Calculate a second difference based on the superheat value of the first evaporator and the second threshold value.

[0111] The superheat value of the first evaporator is the difference between the detection value of the refrigerant at the first position of the first evaporator and the detection value of the refrigerant at the second position. The first position may be the outlet position of the first evaporator, and the second position may be the inlet position or the middle position of the first evaporator.

[0112] The superheat value of the first evaporator is negatively correlated with the heat exchange efficiency of the first evaporator. The smaller the superheat value of the first evaporator (not less than 0), the better the heat exchange efficiency of the first evaporator. The superheat value of the first evaporator is directly related to the flow rate of the refrigerant in the first evaporator. Specifically, when the flow rate of the refrigerant in the first evaporator is large, the refrigerant is more likely to have just completed the conversion process from liquid to gas at the outlet position. At this time, the temperature at the outlet position of the first evaporator and the temperature at the middle position are very different, and the superheat value of the first evaporator is small, for example, 1°C. When the flow rate of the refrigerant in the first evaporator is small, the refrigerant is more likely to have completed the conversion process from liquid to gas before the outlet position. At this time, the temperature at the outlet position of the first evaporator and the temperature at the middle position are very different, and the superheat value of the first evaporator is large.

[0113] The second threshold is a threshold of the superheat value of the first evaporator, and the second threshold corresponds to the best heat exchange efficiency of the first evaporator.

[0114] The second difference is a difference between the superheat value of the first evaporator and a second threshold value.

[0115] b. Based on the second difference and a preset third mapping relationship, adjusting the opening value of the first electronic expansion valve corresponding to the first evaporator.

[0116] The third mapping relationship is pre-set in the air conditioner, and stores the corresponding relationship between the difference range and the opening value adjustment range. According to the second difference and the third mapping relationship, the difference range of the second difference and the corresponding opening value adjustment range can be determined.

[0117] like Figure 4 As shown, the refrigerant can flow into the pipeline from the outdoor heat exchanger inlet 207. The first electronic expansion valve 208 is arranged on the pipeline where the refrigerant enters the first evaporator 201. The flow rate of the refrigerant entering the first evaporator 201 can be adjusted by changing the opening value.

[0118] The air conditioner can adjust the opening value of the first electronic expansion valve based on the second difference and the third mapping relationship, thereby changing the flow rate of the refrigerant entering the first evaporator.

[0119] Specifically, adjust the opening value of the first electronic expansion valve to change the flow rate of the refrigerant entering the first evaporator. That is, when the flow rate of the refrigerant in the first evaporator is small, increase the opening value of the first electronic expansion valve, thereby increasing the flow rate of the refrigerant entering the first evaporator. When the flow rate of the refrigerant in the first evaporator is large, decrease the opening value of the first electronic expansion valve, thereby decreasing the flow rate of the refrigerant entering the first evaporator. By changing the flow rate of the refrigerant entering the first evaporator, the superheat degree of the first evaporator measured actually can be made close to the second threshold value, so that the first evaporator can maintain a good heat exchange efficiency, thereby providing a good refrigeration effect.

[0120] In this embodiment, based on the superheat degree value of the first evaporator and the second threshold value, calculate a second difference, where the second difference is the difference between the superheat degree value of the first evaporator and the second threshold value; based on the second difference and a preset third mapping relationship, adjust the opening value of the first electronic expansion valve corresponding to the first evaporator; wherein, the third mapping relationship stores the corresponding relationship between the difference range interval and the opening value adjustment range; wherein, the superheat degree value of the first evaporator is the difference between the detection value of the refrigerant at the first position of the first evaporator and the detection value of the refrigerant at the second position. By adjusting the opening value of the first electronic expansion valve according to the second difference and the third mapping relationship, the flow rate of the refrigerant entering the first evaporator can be changed, so that the first evaporator can maintain a good refrigeration effect. Since the opening value of the first electronic expansion valve is determined according to the second difference between the superheat degree value of the first evaporator and the second threshold value and the third mapping relationship, the accuracy of adjusting the opening value can be ensured.

[0121] In one embodiment, adjusting the opening value of the first electronic expansion valve corresponding to the first evaporator based on the second difference and a preset third mapping relationship includes the following steps:

[0122] a. According to the second difference and the preset third mapping relationship, determine the target difference range segment where the second difference is located, and the target opening value adjustment range matching the target difference range segment.

[0123] Wherein, the target opening value adjustment range refers to the range by which the opening value of the first electronic expansion valve needs to be adjusted this time based on the previous adjustment.

[0124] b. Update the opening value of the first electronic expansion valve according to the target opening value adjustment range.

[0125] That is, based on the opening value of the first electronic expansion valve after the previous adjustment, update the opening value of the first electronic expansion valve in combination with the target opening value adjustment range.

[0126] When the opening value of the first electronic expansion valve is adjusted for the first time, the opening value corresponding to when the first electronic expansion valve just starts to work in the target cooling mode may be used as a reference.

[0127] Each subsequent adjustment is based on the opening value of the first electronic expansion valve after the last adjustment, and combined with the target opening value adjustment range determined this time, to determine the opening value of the first electronic expansion valve after the current adjustment.

[0128] After each adjustment of the opening value of the first electronic expansion valve, the difference range is determined according to the currently determined second difference, and then the corresponding target opening value adjustment range is determined. This process is repeated until the target cooling mode is exited or the machine is shut down.

[0129] Exemplarily, the third mapping relationship is shown in Table 3, where Y represents the second difference, wherein:

[0130] Table 3

[0131]

[0132] Here, the larger the difference range is, the larger the superheat value of the first evaporator is above the second threshold value, the less refrigerant leads to a worse heat exchange effect, and in order to quickly cool the room, the more it is necessary to increase the opening value of the first electronic expansion valve to increase the flow of refrigerant entering the first evaporator. The smaller the difference range is, the smaller the negative value is, the smaller the superheat value of the first evaporator is below the second threshold value, the more refrigerant leads to an overly good heat exchange effect, making the room temperature low and requiring appropriate temperature increase, so the more it is necessary to reduce the adjustment range of the opening value of the first electronic expansion valve to reduce the flow of refrigerant entering the first evaporator.

[0133] In this embodiment, according to the second difference and the preset third mapping relationship, the target difference range segment in which the second difference is located and the target opening value adjustment amplitude that matches the target difference range segment are determined; according to the target opening value adjustment amplitude, the opening value of the first electronic expansion valve is updated. Since the target opening value adjustment amplitude is determined according to the second difference and the target difference range segment in which it is located, the opening value of the first electronic expansion valve is updated based on the target opening value adjustment amplitude, so that the reliability of the opening value update of the first electronic expansion valve can be guaranteed.

[0134] In one embodiment, after the opening value of the first electronic expansion valve is updated according to the target opening value adjustment amplitude, the following steps are further included:

[0135] a. Determine a target value adjustment period that matches the target value difference range segment according to the target value difference range segment and the third mapping relationship.

[0136] The third mapping relationship further stores a correspondence between the difference range segment and the value adjustment period. The value adjustment period is the time interval between two processes of adjusting the opening value of the first electronic expansion valve.

[0137] The target value adjustment period is the value adjustment period corresponding to the second difference. Exemplarily, the third mapping relationship is shown in Table 4:

[0138] Table 4

[0139]

[0140] Wherein, Y represents the second difference. When the second difference falls within the difference range of 1≤Y<2, the next adjustment is performed at an interval of 60 seconds.

[0141] b. When the target value adjustment period is reached, the step of adjusting the opening value of the first electronic expansion valve for the next time is performed.

[0142] That is, when the target value adjustment cycle is reached, a new round of steps is performed to obtain a second difference based on the superheat value of the first evaporator and the second threshold; and to adjust the opening value of the first electronic expansion valve corresponding to the first evaporator based on the second difference and a preset third mapping relationship. In the new round of steps of adjusting the opening value of the first electronic expansion valve, the superheat value of the first evaporator is obtained in the new round of steps.

[0143] In this embodiment, a target value adjustment period matching the target difference range segment is determined according to the target difference range segment and the third mapping relationship; wherein the third mapping relationship also stores the corresponding relationship between the difference range segment and the value adjustment period; when the target value adjustment period is reached, the step of adjusting the opening value of the first electronic expansion valve for the next time is performed. Since the target value adjustment period is determined according to the second difference and the target difference range segment in which it is located, the opening value of the first electronic expansion valve is updated based on the target value adjustment period, so that the room can be cooled quickly.

[0144] In one embodiment, the second detection parameter includes a superheat value of the second evaporator; the second control parameter includes a third threshold value; and based on the second detection parameter and the second control parameter, controlling the operating parameters of the air conditioner includes the following steps:

[0145] a. Calculating a third difference based on the superheat value of the second evaporator and the third threshold value.

[0146] The superheat value of the second evaporator is the difference between the detection value of the refrigerant at the first position of the second evaporator and the detection value of the refrigerant at the second position. The first position may be the outlet position of the second evaporator, and the second position may be the inlet position or the middle position of the second evaporator.

[0147] The third threshold is the threshold of the superheat value of the second evaporator, and the third threshold is greater than the second threshold. The third threshold is set to be greater than the second threshold because the function of the second evaporator is mainly to make the wind sent out from the second air outlet cool, so the second evaporator does not need to have the best heat exchange effect, and the third threshold can be set higher. Moreover, in the case of having the same refrigerant flow as the first evaporator, in order to make the second evaporator blow out cool air, which is different from the first evaporator blowing cold air, the third threshold can be set to be greater than the second threshold, so that the opening value adjustment range of the second electronic expansion valve corresponding to the larger third threshold will be relatively smaller, thereby relatively reducing the flow of refrigerant flowing into the second evaporator, so that the wind sent out from the second air outlet is cool.

[0148] The third difference is the difference between the superheat value of the second evaporator and the third threshold value. The superheat value of the second evaporator is the difference between the detection value of the refrigerant at the first position of the second evaporator and the detection value of the refrigerant at the second position. The first position of the second evaporator may be the outlet position of the second evaporator, and the second position of the second evaporator may be the inlet position or the middle position of the second evaporator.

[0149] b. Based on the third difference and a preset fourth mapping relationship, adjusting the opening value of the second electronic expansion valve corresponding to the second evaporator.

[0150] The fourth mapping relationship is pre-set in the air conditioner and stores the correspondence between the difference range and the opening adjustment range. According to the third difference and the fourth mapping relationship, the difference range of the third difference and the corresponding opening adjustment range can be determined.

[0151] Continue as Figure 4 As shown, the second electronic expansion valve 209 is disposed on the pipeline through which the refrigerant enters the second evaporator 202 , and can control the flow rate of the refrigerant entering the second evaporator 202 .

[0152] The air conditioner can adjust the opening value of the second electronic expansion valve based on the third difference and the fourth mapping relationship, thereby changing the flow rate of the refrigerant entering the second evaporator.

[0153] In this embodiment, based on the superheat value of the second evaporator and the third threshold value, a third difference is obtained, and the third difference is the difference between the superheat value of the second evaporator and the third threshold value; based on the third difference and the preset fourth mapping relationship, the opening value of the second electronic expansion valve corresponding to the second evaporator is adjusted; wherein the fourth mapping relationship stores the corresponding relationship between the difference range interval and the opening value adjustment amplitude; wherein the superheat value of the second evaporator is the difference between the detection value of the refrigerant at the first position of the second evaporator and the detection value of the refrigerant at the second position. By adjusting the opening value of the second electronic expansion valve according to the third difference and the fourth mapping relationship, the flow rate of the refrigerant entering the second evaporator can be changed, so that the second evaporator maintains the effect of blowing cool air. Since the opening value of the second electronic expansion valve is determined according to the third difference between the superheat value of the second evaporator and the third threshold value, and the fourth mapping relationship, the accuracy of adjusting the opening value can be guaranteed.

[0154] In one embodiment, adjusting the opening value of the second electronic expansion valve corresponding to the second evaporator based on the third difference and a preset fourth mapping relationship includes the following steps:

[0155] a. According to the third difference and a preset fourth mapping relationship, determine the target difference range interval in which the third difference is located, and the target opening value adjustment range matching the target difference range interval.

[0156] b. updating the opening value of the second electronic expansion valve according to the target opening value adjustment amplitude.

[0157] Here, it is similar to the limitation of updating the opening value of the first electronic expansion valve, and will not be described in detail. The fourth mapping relationship can refer to Table 3. The difference range interval and the difference range segment have the same meaning, which represent the difference range.

[0158] In one embodiment, after the opening value of the first electronic expansion valve is updated according to the target opening value adjustment amplitude, the following steps are further included:

[0159] a. Determine a target value adjustment period that matches the target value difference range according to the target value difference range and the fourth mapping relationship.

[0160] The fourth mapping relationship further stores a correspondence between the difference range interval and the value adjustment period.

[0161] b. When the target value adjustment period is reached, the step of adjusting the opening value of the second electronic expansion valve is performed next time.

[0162] Here, the adjustment period for updating the opening value of the first electronic expansion valve is similar to that for updating the opening value of the first electronic expansion valve, and will not be described in detail.

[0163] In one embodiment, step 302, based on the temperature difference and a preset first mapping relationship, the temperature difference interval in which the temperature difference is located and the matching first control parameter and second control parameter are determined.

[0164] More specifically, when the temperature difference is large, the indoor temperature is relatively high and the demand for rapid cooling of the room is greater. For better cooling effect, the second threshold setting of the first control parameter needs to be smaller. In order to blow cool air, the third threshold setting of the second control parameter is larger than the second threshold.

[0165] In the case of a small temperature difference, in order to ensure the cooling effect of the room, the second threshold of the first control parameter remains unchanged. However, when the temperature difference is relatively small, the first threshold of the first control parameter can be set slightly larger, so that the first difference between the detection value and the first threshold becomes relatively smaller, thereby reducing the frequency adjustment amplitude of the compressor, making the air supply temperature of the first air outlet slightly higher, and achieving energy saving at the same time. The third threshold of the second control parameter is set slightly larger than that when the temperature difference is large, so that the temperature of the second air outlet is relatively increased.

[0166] In one embodiment, an air guide plate is provided at the first air outlet of the air conditioner, and the method further includes: controlling the air guide plate to open to a set angle.

[0167] Among them, the first air outlet is the air outlet located above the second air outlet, and the setting angle is used to make the airflow at the first air outlet above the set height. The set height can be the height corresponding to the air guide plate flipping to the horizontal upward. Since the height of the first air outlet is relatively high, and the air guide plate at the first air outlet flips to the set angle, direct blowing of cold air can be avoided. In addition, the cold air can sink from top to bottom, and a large amount of cold air can be supplied, which is conducive to rapid cooling of the room.

[0168] Specifically, the air conditioner further includes a motor, and an output shaft of the motor is fixedly connected to a shaft of an air guide plate at the first air outlet. The air conditioner controls the output shaft of the motor to rotate according to a set angle to drive the air guide plate at the first air outlet to rotate the set angle, so that the airflow at the first air outlet is above a set height. The airflow at the first air outlet is above the set height, so that the user will not be directly blown by cold air.

[0169] In this embodiment, the air guide plate at the first air outlet is controlled to open at a set angle, so that the user will not be directly blown by cold air.

[0170] In one embodiment, continue to refer to Figure 1The indoor unit of the air conditioner further includes a first wind wheel 210, and the first wind wheel 210 supplies air through the first air outlet 203; in the target cooling mode, the method further includes: controlling the first wind wheel to operate at a first wind speed gear.

[0171] Among them, the first wind speed gear is the rated maximum wind speed gear.

[0172] In this embodiment, the first wind wheel is controlled to operate at the first wind speed level, so that the room can be cooled down quickly.

[0173] In one embodiment, continue to refer to Figure 1 The indoor unit of the air conditioner further includes a second wind wheel 211, and the second wind wheel 211 delivers air through the second air outlet 204; in the target cooling mode, the method further includes: controlling the second wind wheel to operate at a second wind speed gear.

[0174] The second wind speed gear is any gear in the set wind speed gear. The second wind speed gear can be a wind speed gear automatically matched when the air conditioner is in the target cooling mode, or can be any gear in the wind speed gear set by the user.

[0175] In this embodiment, the second wind wheel is controlled to operate at the second wind speed level. Since the second wind speed level can be any level among the set wind speed levels, it can be set according to the user's specific settings, so that the user can get a more suitable cool breeze.

[0176] The refrigeration method of the air conditioner of the present application is further described in detail below in conjunction with the application examples. Figure 5 shown.

[0177] After the user turns on the air conditioner and causes the air conditioner to enter the target cooling mode, the air conditioner first executes step 501 to obtain the indoor temperature detection value, the indoor set temperature value, the detection parameter in the first evaporator and the second detection parameter of the second evaporator.

[0178] The indoor unit of the air conditioner includes a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator, and a second air outlet corresponding to the second evaporator. The first detection parameter includes a detection value of the refrigerant at the first evaporator and a superheat value of the first evaporator. The detection value of the refrigerant may be the temperature of the refrigerant at the middle position of the first evaporator. The second detection parameter includes a superheat value of the second evaporator.

[0179] Step 502: Determine a matching first control parameter and a second control parameter based on a temperature difference between an indoor temperature detection value and an indoor set temperature value and a preset first mapping relationship.

[0180] The first control parameter includes a first threshold value and a second threshold value. The first threshold value is a threshold value of a pre-set refrigerant detection value, and the second threshold value is a threshold value of a superheat value of the first evaporator, and the second threshold value corresponds to the best heat exchange efficiency of the first evaporator. The second control parameter includes a third threshold value, and the third threshold value is a threshold value of a superheat value of the second evaporator.

[0181] Step 503, adjusting the frequency of the compressor according to the detection value of the refrigerant at the first evaporator in the first detection parameter and the first threshold in the first control parameter. And adjusting the opening value of the first electronic expansion valve according to the superheat value of the first evaporator in the first detection parameter and the second threshold in the first control parameter;

[0182] and / or,

[0183] The opening value of the second electronic expansion valve is adjusted according to the superheat value of the second evaporator in the second detection parameter and the third threshold value in the second control parameter.

[0184] Here, and / or the previous individual small steps can achieve large cooling capacity to quickly cool the room. And / or the subsequent individual small steps can achieve direct cool air blowing, so that the user can blow air directly without feeling cold. The combination of the two small steps can achieve large cooling capacity and direct cool air blowing at the same time.

[0185] Step 504: if it is determined that the absolute value of the temperature difference is less than a preset value, then exit the target cooling mode.

[0186] The preset value may be 1, for example.

[0187] In this embodiment, the operating parameters of the air conditioner are controlled according to the detection parameters of the evaporators corresponding to the two air outlets and the corresponding control parameters, so that large cooling capacity cooling and cool wind blowing can be achieved respectively, or large cooling capacity cooling and cool wind blowing can be achieved simultaneously, so that the user can experience rapid cooling and cool wind blowing when the temperature is high just after entering the room, which can meet the user's demand for direct blowing. In this way, the refrigeration function of the air conditioner in this application is more diversified. In addition, since the control parameters of the two evaporators are determined based on the indoor temperature detection value and the indoor set temperature value, the accuracy of controlling the operating parameters of the air conditioner can be further improved.

[0188] In order to implement the method of the embodiment of the present application, the embodiment of the present application also provides a control device for an air conditioner, such as Figure 6 As shown, the control device 600 of the air conditioner corresponds to the refrigeration method of the air conditioner mentioned above, and each step in the embodiment of the refrigeration method of the air conditioner mentioned above is also completely applicable to the embodiment of the control device 600 of the air conditioner.

[0189] The indoor unit of the air conditioner includes: a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator, and a second air outlet corresponding to the second evaporator; the device 600 includes:

[0190] The data acquisition module 601 is used to acquire the indoor temperature detection value, the indoor set temperature value, the first detection parameter of the first evaporator and the second detection parameter of the second evaporator in the target cooling mode;

[0191] A control parameter determination module 602, configured to determine a first control parameter and a second control parameter based on the indoor temperature detection value and the indoor set temperature value, wherein the first control parameter corresponds to the first evaporator and the second control parameter corresponds to the second evaporator;

[0192] The operation control module 603 is used to control the operation parameters of the air conditioner based on the first detection parameter and the first control parameter, and / or the second detection parameter and the second control parameter.

[0193] In one embodiment, the control parameter determination module 602 is specifically used to: obtain the temperature difference between the indoor temperature detection value and the indoor set temperature value; based on the temperature difference and a preset first mapping relationship, determine the temperature difference interval in which the temperature difference is located and the matching first control parameter and second control parameter; wherein the first mapping relationship stores the correspondence between the temperature difference interval and the first control parameter and the second control parameter.

[0194] In one embodiment, the first detection parameter includes a detection value of the refrigerant at the first evaporator; the first control parameter includes a first threshold; the operation control module 603 is specifically used to: obtain a first difference based on the detection value and the first threshold, the first difference being the difference between the detection value and the first threshold; adjust the frequency of the compressor based on the first difference and a preset second mapping relationship; wherein the second mapping relationship stores a correspondence between a difference range interval and a frequency adjustment amplitude.

[0195] In one embodiment, the first detection parameter also includes a superheat value of the first evaporator; the first control parameter also includes a second threshold value; the operation control module 603 is specifically used to: based on the superheat value of the first evaporator and the second threshold value, obtain a second difference, the second difference being the difference between the superheat value of the first evaporator and the second threshold value; based on the second difference and a preset third mapping relationship, adjust the opening value of the first electronic expansion valve corresponding to the first evaporator; wherein the third mapping relationship stores a correspondence between a difference range interval and an opening value adjustment amplitude; wherein the superheat value of the first evaporator is the difference between the detection value of the refrigerant at a first position of the first evaporator and the detection value of the refrigerant at a second position.

[0196] In one embodiment, the second detection parameter includes a superheat value of the second evaporator; the second control parameter includes a third threshold value; the operation control module 603 is specifically used to: based on the superheat value of the second evaporator and the third threshold value, obtain a third difference, and the third difference is the difference between the superheat value of the second evaporator and the third threshold value; based on the third difference and a preset fourth mapping relationship, adjust the opening value of the second electronic expansion valve corresponding to the second evaporator; wherein the fourth mapping relationship stores a correspondence between a difference range interval and an opening value adjustment amplitude; wherein the superheat value of the second evaporator is the difference between the detection value of the refrigerant at the first position of the second evaporator and the detection value of the refrigerant at the second position.

[0197] In one embodiment, the operation control module 603 is specifically used to: determine the target difference range interval in which the first difference is located, and the target frequency adjustment amplitude that matches the target difference range interval based on the first difference and a preset second mapping relationship; and update the frequency of the compressor based on the target frequency adjustment amplitude.

[0198] In one embodiment, the operation control module 603 is specifically used to: after updating the frequency of the compressor according to the target frequency adjustment amplitude, determine the target frequency modulation period that matches the target difference range interval according to the target difference range interval and the second mapping relationship; wherein the second mapping relationship also stores the correspondence between the difference range interval and the frequency modulation period; and the difference range interval is negatively correlated with the frequency modulation period; when the target frequency modulation period is reached, execute the step of adjusting the frequency of the compressor for the next time.

[0199] In one embodiment, the operation control module 603 is specifically used to: determine the target difference range segment in which the second difference is located, and the target opening value adjustment amplitude that matches the target difference range segment based on the second difference and a preset third mapping relationship; and update the opening value of the first electronic expansion valve based on the target opening value adjustment amplitude.

[0200] In one embodiment, the operation control module 603 is specifically used to: after updating the opening value of the first electronic expansion valve according to the target opening value adjustment amplitude, determine the target adjustment period that matches the target difference range segment according to the target difference range segment and the third mapping relationship; wherein the third mapping relationship also stores the correspondence between the difference range segment and the adjustment period; and when the target adjustment period is reached, execute the step of adjusting the opening value of the first electronic expansion valve for the next time.

[0201] In one embodiment, an air guide plate is provided at the first air outlet of the air conditioner, and the control device 600 of the air conditioner indoor unit also includes an air guide plate flip module, which is used to: control the opening of the air guide plate to a set angle; wherein, the first air outlet is an air outlet located above the second air outlet, and the set angle is used to make the airflow at the first air outlet above a set height.

[0202] In one embodiment, the indoor unit of the air conditioner also includes a first wind wheel, which delivers air through the first air outlet; an air guide plate flip module is used to: in the target cooling mode, control the first wind wheel to operate according to a first wind speed gear; wherein the first wind speed gear is the rated maximum wind speed gear.

[0203] In one embodiment, the indoor unit of the air conditioner also includes a second wind wheel, which supplies air through the second air outlet; the air guide plate flip module is also used to: control the second wind wheel to operate according to a second wind speed gear; wherein the second wind speed gear is any one of the set wind speed gears.

[0204] In actual application, the data acquisition module 601, the control parameter determination module 602, the operation control module 603 and the air guide plate flip module can be implemented by a processor in the air conditioner. Of course, the processor needs to run the computer program in the memory to realize its function.

[0205] It should be noted that: the control device for the air conditioner provided in the above embodiment is only illustrated by the division of the above program modules when performing the cooling of the air conditioner. In actual application, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device is divided into different program modules to complete all or part of the processing described above. In addition, the control device for the air conditioner provided in the above embodiment and the cooling method embodiment of the air conditioner belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0206] Based on the hardware implementation of the above program modules and in order to implement the method of the embodiment of the present application, the embodiment of the present application also provides an air conditioner. Figure 7 Only an exemplary structure of the air conditioner is shown, not all structures, and it can be implemented as needed. Figure 7 Partial or complete structure shown.

[0207] like Figure 7 As shown, the air conditioner 700 provided in the embodiment of the present application includes: at least one processor 701, a memory 702, a user interface 703 and at least one network interface 704. The various components in the air conditioner 700 are coupled together through a bus system 705. It can be understood that the bus system 705 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 705 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, in Figure 7 Various buses are labeled as bus system 705.

[0208] The user interface 703 may include a display, a keyboard, a mouse, a trackball, a click wheel, keys, buttons, a touch pad or a touch screen.

[0209] The memory 702 in the embodiment of the present application is used to store various types of data to support the operation of the air conditioner. Examples of such data include: any computer program used to operate on the air conditioner.

[0210] The refrigeration of the air conditioner disclosed in the embodiment of the present application can be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the refrigeration of the air conditioner can be completed by the hardware integrated logic circuit or software instructions in the processor 701. The above-mentioned processor 701 can be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 701 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present application, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 702. The processor 701 reads the information in the memory 702 and completes the refrigeration steps of the air conditioner provided in the embodiment of the present application in combination with its hardware.

[0211] In an exemplary embodiment, the air conditioner can be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD), field programmable gate array (FPGA), general processor, controller, microcontroller (MCU), microprocessor, or other electronic components to execute the aforementioned method.

[0212] It can be understood that the memory 702 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disk, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0213] In an exemplary embodiment, the present application also provides a computer storage medium, namely, a computer storage medium, which can be a computer-readable storage medium, for example, a memory 702 storing a computer program, and the computer program can be executed by a processor 701 of the air conditioner to complete the steps described in the method of the present application embodiment. The computer-readable storage medium can be a memory such as a ROM, a PROM, an EPROM, an EEPROM, a Flash Memory, a magnetic surface memory, an optical disk, or a CD-ROM.

[0214] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0215] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[0216] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A cooling method for an air conditioner, It is characterized in that The indoor unit of the air conditioner comprises: a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator, and a second air outlet corresponding to the second evaporator; the method comprises: In a target cooling mode, obtaining an indoor temperature detection value, an indoor set temperature value, a first detection parameter of the first evaporator, and a second detection parameter of the second evaporator; Determine a first control parameter and a second control parameter based on the indoor temperature detection value and the indoor set temperature value, wherein the first control parameter corresponds to the first evaporator and the second control parameter corresponds to the second evaporator; Based on the first detection parameter and the first control parameter, and / or the second detection parameter and the second control parameter, an operating parameter of the air conditioner is controlled.

2. The method according to claim 1, It is characterized in that The determining of the first control parameter and the second control parameter based on the indoor temperature detection value and the indoor set temperature value comprises: Obtaining a temperature difference between the indoor temperature detection value and the indoor set temperature value; Based on the temperature difference and a preset first mapping relationship, the temperature difference interval in which the temperature difference is located and the matching first control parameter and second control parameter are determined; wherein the first mapping relationship stores the correspondence between the temperature difference interval and the first control parameter and the second control parameter.

3. The method according to claim 1, It is characterized in that The first detection parameter includes a detection value of the refrigerant at the first evaporator; the first control parameter includes a first threshold; and the operating parameters of the air conditioner are controlled based on the first detection parameter and the first control parameter, including: Based on the detection value and the first threshold, a first difference is calculated, where the first difference is the difference between the detection value and the first threshold; Based on the first difference and a preset second mapping relationship, the frequency of the compressor is adjusted; wherein the second mapping relationship stores a correspondence between a difference range interval and a frequency adjustment amplitude.

4. The method according to claim 3, It is characterized in that The first detection parameter also includes a superheat value of the first evaporator; the first control parameter also includes a second threshold; and the operating parameters of the air conditioner are controlled based on the first detection parameter and the first control parameter, including: Based on the superheat value of the first evaporator and the second threshold, a second difference is calculated, where the second difference is the difference between the superheat value of the first evaporator and the second threshold; Based on the second difference and a preset third mapping relationship, the opening value of the first electronic expansion valve corresponding to the first evaporator is adjusted; wherein the third mapping relationship stores the correspondence between the difference range interval and the opening value adjustment amplitude; wherein the superheat value of the first evaporator is the difference between the detection value of the refrigerant at the first position of the first evaporator and the detection value of the refrigerant at the second position.

5. The method according to claim 2, It is characterized in that The second detection parameter includes a superheat value of the second evaporator; the second control parameter includes a third threshold; and the operation parameters of the air conditioner are controlled based on the second detection parameter and the second control parameter, including: Based on the superheat value of the second evaporator and the third threshold, a third difference is calculated, where the third difference is the difference between the superheat value of the second evaporator and the third threshold; Based on the third difference and a preset fourth mapping relationship, adjusting the opening value of the second electronic expansion valve corresponding to the second evaporator; wherein the fourth mapping relationship stores a corresponding relationship between a difference range interval and an opening value adjustment amplitude; The superheat value of the second evaporator is a difference between a detection value of the refrigerant at a first position of the second evaporator and a detection value of the refrigerant at a second position.

6. The method according to claim 3, It is characterized in that The adjusting the frequency of the compressor based on the first difference and a preset second mapping relationship includes: Determine, according to the first difference and a preset second mapping relationship, a target difference range in which the first difference is located, and a target frequency adjustment amplitude matching the target difference range; The frequency of the compressor is updated according to the target frequency adjustment amplitude.

7. The method according to claim 6, It is characterized in that After the frequency of the compressor is updated according to the target frequency adjustment amplitude, the method further includes: Determine a target frequency modulation period that matches the target difference range interval according to the target difference range interval and the second mapping relationship; wherein the second mapping relationship further stores a correspondence between the difference range interval and the frequency modulation period; and the difference range interval is negatively correlated with the frequency modulation period; When the target frequency modulation period is reached, the step of adjusting the frequency of the compressor for the next time is performed.

8. The method according to claim 4, It is characterized in that The adjusting the opening value of the first electronic expansion valve corresponding to the first evaporator based on the second difference and a preset third mapping relationship includes: According to the second difference and a preset third mapping relationship, determining a target difference range segment in which the second difference is located, and a target opening value adjustment amplitude matching the target difference range segment; The opening value of the first electronic expansion valve is updated according to the target opening value adjustment range.

9. The method according to claim 8, It is characterized in that After the opening value of the first electronic expansion valve is updated according to the adjustment range of the target opening value, the method further includes: Determine a target value adjustment period that matches the target value difference range segment according to the target value difference range segment and the third mapping relationship; wherein the third mapping relationship further stores a correspondence between the value difference range segment and the value adjustment period; When the target value adjustment period is reached, the step of adjusting the opening value of the first electronic expansion valve for the next time is performed.

10. The method according to claim 1, It is characterized in that An air guide plate is provided at the first air outlet of the air conditioner, and the method further comprises: Controlling the air guide plate to open to a set angle; The first air outlet is an air outlet located above the second air outlet, and the set angle is used to make the airflow at the first air outlet be above a set height.

11. The method according to claim 1, It is characterized in that The indoor unit of the air conditioner further comprises a first wind wheel, and the first wind wheel delivers air through the first air outlet; In the target cooling mode, the method further includes: The first wind wheel is controlled to operate at a first wind speed level; wherein the first wind speed level is a rated maximum wind speed level.

12. The method according to claim 1, It is characterized in that The indoor unit of the air conditioner further comprises a second wind wheel, and the second wind wheel delivers air through the second air outlet; In the target cooling mode, the method further includes: The second wind wheel is controlled to operate at a second wind speed level; wherein the second wind speed level is any one of the set wind speed levels.

13. A control device for an air conditioner, It is characterized in that The indoor unit of the air conditioner comprises: a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator and a second air outlet corresponding to the second evaporator; the device comprises: A data acquisition module, used for acquiring an indoor temperature detection value, an indoor set temperature value, a first detection parameter of the first evaporator and a second detection parameter of the second evaporator in a target cooling mode; a control parameter determination module, configured to determine a first control parameter and a second control parameter based on the indoor temperature detection value and the indoor set temperature value, wherein the first control parameter corresponds to the first evaporator and the second control parameter corresponds to the second evaporator; An operation control module is used to control the operation parameters of the air conditioner based on the first detection parameter and the first control parameter, and / or the second detection parameter and the second control parameter.

14. An air conditioner, It is characterized in that The indoor unit of the air conditioner comprises: a first evaporator, a second evaporator, a first air outlet corresponding to the first evaporator, and a second air outlet corresponding to the second evaporator; the air conditioner comprises: a processor and a memory for storing a computer program that can be run on the processor, wherein: The processor is used to execute the steps of the method according to any one of claims 1 to 12 when running a computer program.

15. A computer storage medium having a computer program stored thereon, It is characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 12 are implemented.

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