Wind frequency linkage control method, controller, air conditioner and storage medium

Abstract

The embodiment of the invention provides an air frequency linkage control method, a controller, an air conditioner and a storage medium. The air frequency linkage control method comprises the following steps that the outdoor environment temperature, the indoor environment temperature and the set temperature of the air conditioner are obtained; the target frequency of a compressor and the target air speed of an indoor fan are determined according to the indoor environment temperature and the set temperature; the maximum operation frequency of the compressor is determined according to the outdoor environment temperature and the target air speed, and the final frequency of the compressor is determined according to the target frequency and the maximum operation frequency; and an indoor fan is controlled to operate at the target air speed, and a compressor is controlled to operate at the final frequency. According to the embodiment of the invention, the target air speed of the indoor fan is correspondingly adjusted according to the indoor environment temperature, and the influence of the indoor environment temperature factor is considered, so that the comfort level can be improved; in addition, the operation frequency of the compressor can be correspondingly adjusted according to the outdoor environment temperature, the target air speed and the target frequency, and the problems of comfort experience reduction and energy conservation caused by high frequency and low air are solved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and particularly relates to a wind frequency linkage control method, a controller, an air conditioner, and a storage medium. Background Art

[0002] In the related art, due to the principle of density difference between cold and hot air, there is generally a temperature gradient in the vertical direction indoors, that is, cold air sinks and hot air rises. This temperature stratification phenomenon will cause uneven indoor environmental temperature, resulting in a decrease in human thermal comfort. In response to this, currently, variable-frequency air conditioners usually control the fan speed and the compressor frequency according to the difference between the current indoor environmental temperature and the set temperature. For example, when the difference between the indoor environmental temperature and the set temperature increases, the fan speed increases, and the up-frequency amplitude of the compressor frequency increases; when the difference between the indoor environmental temperature and the set temperature decreases, the fan speed decreases, and the up-frequency amplitude of the compressor frequency decreases.

[0003] However, the above control method often has the phenomenon of "high frequency and low wind", resulting in a problem of excessive indoor temperature stratification. Specifically, when the outdoor temperature is relatively high, the compressor operates at a high frequency, but since the indoor temperature is close to the set temperature, the fan is in a low wind speed gear, and excessive cold air sinks, resulting in an increase in the temperature gradient in the vertical direction indoors. Summary of the Invention

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present application provides a wind frequency linkage control method, a controller, an air conditioner, and a storage medium, aiming to improve the temperature stratification phenomenon during the operation of the air conditioner and improve user comfort.

[0005] In a first aspect, an embodiment of the present application provides a wind frequency linkage control method applied to an air conditioner. The wind frequency linkage control method includes:

[0006] Obtain the outdoor environmental temperature, the indoor environmental temperature, and the set temperature of the air conditioner;

[0007] Determine the target frequency of the compressor and the target wind speed of the indoor fan according to the indoor environmental temperature and the set temperature;

[0008] Determine the maximum operating frequency of the compressor according to the outdoor environmental temperature and the target wind speed, and determine the final frequency of the compressor according to the target frequency and the maximum operating frequency;

[0009] Control the indoor fan to operate at the target wind speed, and control the compressor to operate at the final frequency.

[0010] According to some embodiments of the present application, determining the target frequency of the compressor and the target air volume of the indoor fan according to the indoor environmental temperature and the set temperature includes:

[0011] Determining the temperature difference between the indoor environmental temperature and the set temperature;

[0012] Determining the target frequency of the compressor and the target air volume of the indoor fan according to the temperature difference, wherein there is a positive correlation between the temperature difference and both the target frequency and the target air volume.

[0013] According to some embodiments of the present application, determining the target frequency of the compressor and the target air volume of the indoor fan according to the temperature difference includes:

[0014] Determining the extreme air volume of the indoor fan according to the outdoor environmental temperature, wherein the extreme air volume includes the maximum operating air volume and / or the minimum operating air volume;

[0015] Determining the target air volume of the indoor fan according to the temperature difference and the extreme air volume.

[0016] According to some embodiments of the present application, determining the extreme air volume of the indoor fan according to the outdoor environmental temperature includes:

[0017] Determining the current operating condition of the air conditioner according to the outdoor environmental temperature, wherein the current operating condition is one of multiple preset operating conditions, and the preset operating conditions and the extreme air volume of the indoor fan correspond one by one;

[0018] Determining the corresponding extreme air volume of the indoor fan according to the current operating condition.

[0019] According to some embodiments of the present application, determining the target air volume of the indoor fan according to the temperature difference and the extreme air volume includes one of the following:

[0020] When the temperature difference is greater than the upper temperature value, determining the extreme air volume as the maximum operating air volume and taking the maximum operating air volume as the target air volume of the indoor fan;

[0021] When the temperature difference is less than the lower temperature value, determining the extreme air volume as the minimum operating air volume and taking the minimum operating air volume as the target air volume of the indoor fan;

[0022] When the temperature difference is between the upper temperature value and the lower temperature value, determining the extreme air volume as the minimum operating air volume and determining the target air volume of the indoor fan according to the minimum operating air volume and the temperature difference.

[0023] According to some embodiments of the present application, determining the maximum operating frequency of the compressor based on the outdoor ambient temperature and the target wind speed includes:

[0024] Determining the extreme value frequency of the compressor according to the outdoor ambient temperature, where the extreme value frequency includes the maximum temperature limit frequency and / or the minimum temperature limit frequency;

[0025] Determining the maximum operating frequency of the compressor according to the extreme value frequency and the target wind speed.

[0026] According to some embodiments of the present application, determining the extreme value frequency of the compressor according to the outdoor ambient temperature includes:

[0027] Determining the current operating condition of the air conditioner according to the outdoor ambient temperature, where the current operating condition is one of multiple preset operating conditions, and the preset operating conditions and the extreme value frequency of the compressor correspond one by one;

[0028] Determining the corresponding extreme value frequency of the compressor according to the current operating condition.

[0029] According to some embodiments of the present application, the multiple preset operating conditions include a first preset operating condition and a second preset operating condition, and the extreme value frequency of the first preset operating condition is greater than the extreme value frequency of the second preset operating condition, where the outdoor ambient temperature corresponding to the first preset operating condition is higher than the outdoor ambient temperature corresponding to the second preset operating condition.

[0030] According to some embodiments of the present application, determining the maximum operating frequency of the compressor according to the extreme value frequency and the target wind speed includes one of the following:

[0031] When the target wind speed is greater than the upper wind speed threshold, determining that the extreme value frequency is the maximum temperature limit frequency and taking the maximum temperature limit frequency as the maximum operating frequency of the compressor;

[0032] When the target wind speed is less than or equal to the lower wind speed threshold, determining that the extreme value frequency is the minimum temperature limit frequency and taking the minimum temperature limit frequency as the maximum operating frequency of the compressor;

[0033] When the target wind speed is less than or equal to the upper wind speed threshold and greater than the lower wind speed threshold, determining that the extreme value frequency includes the maximum temperature limit frequency and the minimum temperature limit frequency, and determining the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and a preset gain coefficient.

[0034] According to some embodiments of the present application, determining the maximum operating frequency of the compressor based on the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and a preset gain coefficient includes one of the following:

[0035] When the target wind speed is less than or equal to the upper wind speed threshold and greater than the intermediate wind speed threshold, determine the maximum operating frequency of the compressor based on the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, a first gain coefficient, and a second gain coefficient, where the first gain coefficient is less than the second gain coefficient;

[0036] When the target wind speed is less than or equal to the intermediate wind speed threshold and greater than the lower wind speed threshold, determine the maximum operating frequency of the compressor based on the maximum temperature limit frequency, the minimum temperature limit frequency, and the target wind speed and the first gain coefficient.

[0037] According to some embodiments of the present application, determining the maximum operating frequency of the compressor based on the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, the first gain coefficient, and the second gain coefficient includes:

[0038] Input the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, the first gain coefficient, and the second gain coefficient into a first frequency calculation model to obtain the maximum operating frequency of the compressor;

[0039] Wherein, the first frequency calculation model includes a first input variable, a second input variable, a third input variable, and a fourth input variable. The first input variable is used to be assigned the minimum temperature limit frequency, the second input variable is used to be assigned the first gain coefficient, the third input variable is used to be assigned the difference between the target wind speed and the intermediate wind speed threshold, and the fourth input variable is used to be assigned the ratio of the difference between the second gain coefficient and the difference between the intermediate wind speed threshold, the maximum temperature limit frequency, and the minimum temperature limit frequency. The product value of the third input variable and the fourth input variable plus the sum of the first input variable and the second input variable is the maximum operating frequency of the compressor.

[0040] According to some embodiments of the present application, determining the maximum operating frequency of the compressor based on the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the first gain coefficient includes:

[0041] Input the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the first gain coefficient into a second frequency calculation model to obtain the maximum operating frequency of the compressor;

[0042] Among them, the second frequency calculation model includes a fifth input variable, a sixth input variable, and a seventh input variable. The fifth input variable is used to be assigned the minimum temperature limit frequency. The sixth input variable is used to be assigned the target wind speed. The seventh input variable is used to be assigned the ratio of the first gain coefficient to the difference between the intermediate wind speed threshold, the maximum temperature limit frequency, and the minimum temperature limit frequency. The sum of the product value of the sixth input variable and the seventh input variable and the fifth input variable is the maximum operating frequency of the compressor.

[0043] According to some embodiments of the present application, determining the final frequency of the compressor according to the target frequency and the maximum operating frequency includes one of the following:

[0044] When the target frequency is less than the maximum operating frequency, use the target frequency as the final frequency of the compressor;

[0045] When the target frequency is greater than or equal to the maximum operating frequency, use the maximum operating frequency as the final frequency of the compressor.

[0046] In a second aspect, an embodiment of the present application provides a controller, including: a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor runs the computer program, it executes the wind frequency linkage control method as described in the first aspect above.

[0047] In a third aspect, an embodiment of the present application provides an air conditioner, including the controller as described in the second aspect above.

[0048] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, storing computer-executable instructions for executing the wind frequency linkage control method as described in the first aspect above.

[0049] According to the technical solution of the embodiment of the present application, it has at least the following beneficial effects: First, the embodiment of the present application will obtain the outdoor ambient temperature, the indoor ambient temperature, and the set temperature of the air conditioner; then, the embodiment of the present application will determine the target frequency of the compressor and the target air volume of the indoor fan according to the indoor ambient temperature and the set temperature; next, the embodiment of the present application will determine the maximum operating frequency of the compressor according to the outdoor ambient temperature and the target air volume, and determine the final frequency of the compressor according to the target frequency and the maximum operating frequency; finally, the embodiment of the present application will control the indoor fan to operate at the target air volume, and control the compressor to operate at the final frequency. Since the embodiment of the present application will adjust the target air volume of the indoor fan accordingly according to the indoor ambient temperature, considering the influence of the indoor ambient temperature factor, the comfort level can be improved; in addition, the embodiment of the present application will also adjust the operating frequency of the compressor accordingly according to the outdoor ambient temperature, the target air volume, and the target frequency, reducing the decline in the comfort experience and the energy-saving problem caused by "high frequency and low air volume".

[0050] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0051] The drawings are used to provide a further understanding of the technical solution of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application, and do not constitute a limitation to the technical solution of the present application.

[0052] Figure 1 is a flowchart of a wind-frequency linkage control method provided by an embodiment of the present application;

[0053] Figure 2 is a flowchart of a wind-frequency linkage control method provided by another embodiment of the present application;

[0054] Figure 3 is a flowchart of a wind-frequency linkage control method provided by another embodiment of the present application;

[0055] Figure 4 is a flowchart of a wind-frequency linkage control method provided by another embodiment of the present application;

[0056] Figure 5 is a flowchart of a wind-frequency linkage control method provided by another embodiment of the present application;

[0057] Figure 6 is a flowchart of a wind-frequency linkage control method provided by another embodiment of the present application;

[0058] Figure 7 is a flowchart of a wind-frequency linkage control method provided by another embodiment of the present application;

[0059] Figure 8 It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application;

[0060] Figure 9 It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application;

[0061] Figure 10 It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application;

[0062] Figure 11 It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application;

[0063] Figure 12 It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application;

[0064] Figure 13 It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application;

[0065] Figure 14 It is the overall flowchart of the wind frequency linkage control method provided by an embodiment of the present application;

[0066] Figure 15 It is a schematic diagram showing the relationship between the maximum operating frequency of the compressor, the air volume of the indoor fan, and the temperature difference provided by an embodiment of the present application;

[0067] Figure 16 It is a schematic diagram of the controller for implementing the wind frequency linkage control method provided by an embodiment of the present application. Detailed Embodiment

[0068] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0069] In the description of the present application, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0070] In the description of the present application, the meaning of "several" is one or more, the meaning of "multiple" is more than two, "greater than", "less than", "exceeding", etc. are understood not to include the present number, and "above", "below", "within", etc. are understood to include the present number. If the first and second are described, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0071] In the description of the present application, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above terms in the present application in combination with the specific content of the technical solution.

[0072] In some cases, due to the principle of density difference between cold and hot air, there is generally a temperature gradient in the vertical direction indoors, that is, cold air sinks and hot air rises, and this temperature stratification phenomenon will cause the indoor environmental temperature to be uneven, resulting in a decrease in human thermal comfort. In this regard, currently, variable-frequency air conditioners usually control the fan speed and compressor frequency according to the difference between the current indoor environmental temperature and the set temperature. For example, when the difference between the indoor environmental temperature and the set temperature increases, the fan speed increases, and the up-frequency amplitude of the compressor frequency increases; when the difference between the indoor environmental temperature and the set temperature decreases, the fan speed decreases, and the up-frequency amplitude of the compressor frequency decreases.

[0073] However, the above control method often has the phenomenon of "high frequency and low wind", resulting in the problem of excessive indoor temperature stratification. Specifically, when the outdoor temperature is relatively high, the compressor runs at a high frequency, but since the indoor temperature is close to the set temperature, the fan is at a low wind speed, and excessive cold air sinks, thus causing the temperature gradient in the vertical direction indoors to increase.

[0074] All in all, the current control method has the problems of discomfort and energy inefficiency during the refrigeration process. The reason is that the method of determining the high and low fan speeds and the increment of the compressor frequency by the difference between the indoor and set temperatures does not consider the linkage control of the wind speed and frequency, resulting in the "high frequency and low wind" operating state and exacerbating the temperature stratification phenomenon.

[0075] Based on the above situation, the present application proposes a wind-frequency linkage control method, a controller, an air conditioner, and a storage medium, aiming to improve the temperature stratification phenomenon during the operation of the air conditioner and improve the user comfort.

[0076] The following further elaborates on each embodiment of the wind-frequency linkage control method of the present application with reference to the accompanying drawings.

[0077] As Figure 1 shown, Figure 1It is a flowchart of a wind frequency linkage control method provided by an embodiment of the present application. The wind frequency linkage control method is applied to an air conditioner and may include, but is not limited to, steps S110, S120, S130, and S140.

[0078] Step S110: Obtain the outdoor ambient temperature, indoor ambient temperature, and set temperature of the air conditioner.

[0079] Step S120: Determine the target frequency of the compressor and the target air volume of the indoor fan according to the indoor ambient temperature and the set temperature.

[0080] Step S130: Determine the maximum operating frequency of the compressor according to the outdoor ambient temperature and the target air volume, and determine the final frequency of the compressor according to the target frequency and the maximum operating frequency.

[0081] Step S140: Control the indoor fan to operate at the target air volume, and control the compressor to operate at the final frequency.

[0082] In one embodiment, first, the embodiment of the present application will detect the outdoor ambient temperature and the indoor ambient temperature, and also receive the set temperature set by the user; then, the embodiment of the present application will calculate according to the indoor ambient temperature and the set temperature to obtain the target frequency of the compressor and the target air volume of the indoor fan; next, the embodiment of the present application will also calculate according to the outdoor ambient temperature and the target air volume to obtain the maximum operating frequency of the compressor, and determine the final frequency of the compressor according to the target frequency and the maximum operating frequency; finally, the embodiment of the present application will control the indoor fan to operate according to the target air volume, and control the compressor to operate according to the final frequency.

[0083] It can be understood that regarding the above-mentioned method for obtaining the outdoor ambient temperature, it can be detected by an outdoor temperature sensor, or the local outdoor ambient temperature can be obtained through networking, or it can be obtained by other means. The embodiment of the present application does not specifically limit the method for obtaining the outdoor ambient temperature.

[0084] In addition, it can be understood that regarding the above-mentioned method for obtaining the indoor ambient temperature, it can be detected by an indoor temperature sensor, or it can be input by the user. The embodiment of the present application does not specifically limit the method for obtaining the indoor ambient temperature.

[0085] In addition, it can be understood that regarding the above-mentioned set temperature, it can be set by the user through a remote control, or it can be set by the user through a mobile terminal, or it can be set by the user through a voice method, or it can be set by other means. The embodiment of the present application does not specifically limit the setting method of the set temperature.

[0086] In one embodiment, after determining the target frequency of the compressor and the target air volume of the indoor fan, the maximum operating frequency of the compressor can be determined according to the outdoor ambient temperature and the target air volume, and the final frequency of the compressor can be determined according to the target frequency and the maximum operating frequency. Then, the indoor fan is controlled to operate based on the target air volume, and the compressor is controlled to operate based on the final frequency.

[0087] It should be noted that since the embodiments of the present application will correspondingly adjust the target air volume of the indoor fan according to the indoor ambient temperature, considering the influence of the indoor ambient temperature factor, the comfort level can be improved. In addition, the embodiments of the present application will also correspondingly adjust the operating frequency of the compressor according to the outdoor ambient temperature, the target air volume, and the target frequency, reducing the decline in comfort experience and energy-saving problems caused by "high frequency and low air volume".

[0088] In addition, as Figure 2 shown, Figure 2 is a flowchart of the air volume-frequency linkage control method provided by another embodiment of the present application. Regarding the determination of the target frequency of the compressor and the target air volume of the indoor fan according to the indoor ambient temperature and the set temperature in step S120 above, it may include but is not limited to steps S210 and S220.

[0089] Step S210: Determine the temperature difference between the indoor ambient temperature and the set temperature;

[0090] Step S220: Determine the target frequency of the compressor and the target air volume of the indoor fan according to the temperature difference, where there is a positive correlation between the temperature difference and the target frequency and the target air volume respectively.

[0091] In one embodiment, first, the embodiments of the present application calculate according to the indoor ambient temperature and the set temperature to determine the temperature difference between the indoor ambient temperature and the set temperature. Then, the embodiments of the present application calculate according to the temperature difference to determine the target frequency of the compressor and the target air volume of the indoor fan, where there is a positive correlation between the temperature difference and the target frequency and the target air volume respectively.

[0092] It should be noted that for the relationship between the temperature difference and the target frequency and the target air volume respectively, in the cooling mode, there may be a positive correlation between the temperature difference and the target frequency and the target air volume respectively. Specifically, when the temperature difference is higher, both the target frequency and the target air volume are larger; when the temperature difference is lower, both the target frequency and the target air volume are smaller.

[0093] In one embodiment, regarding step S220 above, it includes but is not limited to: determining the extreme air volume of the indoor fan according to the outdoor ambient temperature, where the extreme air volume includes the maximum operating air volume and / or the minimum operating air volume; determining the target air volume of the indoor fan according to the temperature difference and the extreme air volume.

[0094] Specifically, since the outdoor environmental temperature will continuously radiate into the room, the comfort of the indoor environment will be affected by the outdoor environmental temperature. In this regard, the embodiments of the present application will determine the extreme wind speed of the indoor fan based on the magnitude of the outdoor environmental temperature; then, the embodiments of the present application will also calculate the temperature difference between the indoor environmental temperature and the set temperature, where this temperature difference can reflect the gap between the current indoor environmental temperature and the temperature preferred by the user; finally, the embodiments of the present application will calculate the target wind speed of the indoor fan based on both the temperature difference and the extreme wind speed, so as to obtain the target wind speed, and control the indoor fan to operate at this target wind speed.

[0095] In one embodiment, it should be noted that for the above-mentioned extreme wind speed, it may include the maximum operating wind speed, or it may include the minimum operating wind speed, or it may include both the maximum operating wind speed and the minimum operating wind speed. The embodiments of the present application do not make specific limitations in this regard.

[0096] It should be noted that the embodiments of the present application can better match the outdoor environmental temperature by adjusting the magnitude of the extreme wind speed, that is, flexibly adjusting the rotation speed range of the indoor fan, so as to offset the influence of the outdoor environmental temperature on the indoor comfort and improve the comfort of the air supply.

[0097] In one embodiment, regarding the relationship between the outdoor environmental temperature and the extreme wind speed, in the cooling mode, there may be a positive correlation between the outdoor environmental temperature and the extreme wind speed. Specifically, when the outdoor environmental temperature is higher, both the maximum operating wind speed and the minimum operating wind speed are larger; when the outdoor environmental temperature is lower, both the maximum operating wind speed and the minimum operating wind speed are smaller.

[0098] In one embodiment, after determining the maximum operating wind speed and the minimum operating wind speed of the indoor fan, that is, after determining the rotation speed range of the indoor fan, the embodiments of the present application will calculate the temperature difference between the indoor environmental temperature and the set temperature, and determine the corresponding wind speed value in the above rotation speed range based on this temperature difference as the target wind speed of the indoor fan.

[0099] In one embodiment, regarding the above-mentioned determining the extreme wind speed of the indoor fan according to the outdoor environmental temperature, it may include but is not limited to: determining the current operating condition of the air conditioner according to the outdoor environmental temperature, where the current operating condition is one of multiple preset operating conditions, and the preset operating conditions and the extreme wind speed of the indoor fan correspond one by one; determining the corresponding extreme wind speed of the indoor fan according to the current operating condition.

[0100] In one embodiment, first, the embodiments of the present application will preset various types of preset operating conditions in advance. For each preset operating condition, a maximum operating wind speed and a minimum operating wind speed are correspondingly set. Then, after obtaining the outdoor ambient temperature, the embodiments of the present application will determine the type of the current operating condition based on the value of the outdoor ambient temperature. Finally, the embodiments of the present application will determine the corresponding maximum operating wind speed and minimum operating wind speed based on the type of the current operating condition.

[0101] It should be noted that among the above-mentioned various preset operating conditions, at least the first preset operating condition and the second preset operating condition are included. The extreme wind speeds of the first preset operating condition are greater than those of the second preset operating condition, where the outdoor ambient temperature corresponding to the first preset operating condition is higher than the outdoor ambient temperature corresponding to the second preset operating condition.

[0102] For example, the embodiments of the present application can preset two types of preset operating conditions in advance, such as high-temperature conditions and normal conditions. For each preset operating condition, a maximum operating wind speed and a minimum operating wind speed are correspondingly set. Moreover, the maximum operating wind speed corresponding to the high-temperature condition is greater than the maximum operating wind speed corresponding to the normal condition, and the minimum operating wind speed corresponding to the high-temperature condition is greater than the minimum operating wind speed corresponding to the normal condition. Then, after obtaining the outdoor ambient temperature, the embodiments of the present application will determine the type of the current operating condition based on the value of the outdoor ambient temperature. For example, it is determined whether the current operating condition belongs to the high-temperature condition or the normal condition. Finally, the embodiments of the present application will determine the corresponding maximum operating wind speed and minimum operating wind speed based on the type of the current operating condition.

[0103] In addition, it should be noted that among the above-mentioned various preset operating conditions, in addition to setting two types of preset operating conditions, three or more types of preset operating conditions can also be set, and the embodiments of the present application do not make specific limitations on this.

[0104] For example, the embodiments of the present application can preset three types of preset operating conditions in advance, such as high-temperature conditions, medium-high-temperature conditions, and normal conditions. For each preset operating condition, a maximum operating wind speed and a minimum operating wind speed are correspondingly set. Moreover, the maximum operating wind speeds corresponding to the high-temperature condition, the medium-high-temperature condition, and the normal condition decrease in sequence, and the minimum operating wind speeds corresponding to the high-temperature condition, the medium-high-temperature condition, and the normal condition decrease in sequence. Then, after obtaining the outdoor ambient temperature, the embodiments of the present application will determine the type of the current operating condition based on the value of the outdoor ambient temperature. For example, it is determined whether the current operating condition belongs to the high-temperature condition, the medium-high-temperature condition, or the normal condition. Finally, the embodiments of the present application will determine the corresponding maximum operating wind speed and minimum operating wind speed based on the type of the current operating condition.

[0105] In one embodiment, determining the target wind speed of the indoor fan based on the temperature difference and the extreme wind speed includes, but is not limited to, the following three implementation cases, which are as follows:

[0106] The first implementation case: When the temperature difference is greater than the upper limit temperature value, determine the extreme wind speed as the maximum operating wind speed, and use the maximum operating wind speed as the target wind speed of the indoor fan;

[0107] The second implementation case: When the temperature difference is less than the lower limit temperature value, determine the extreme wind speed as the minimum operating wind speed, and use the minimum operating wind speed as the target wind speed of the indoor fan;

[0108] The third implementation case: When the temperature difference is between the upper limit temperature value and the lower limit temperature value, determine the extreme wind speed as the minimum operating wind speed, and determine the target wind speed of the indoor fan according to the minimum operating wind speed and the temperature difference.

[0109] Specifically, after calculating the temperature difference between the indoor environmental temperature and the set temperature, the temperature difference will be compared with the upper limit temperature value and the lower limit temperature value. Since the temperature difference can reflect the gap between the current indoor environmental temperature and the temperature preferred by the user, if the temperature difference is greater than the upper limit temperature value, it indicates that the gap between the current indoor environmental temperature and the temperature preferred by the user is large. Then, the maximum operating wind speed corresponding to the outdoor environmental temperature will be obtained and used as the target wind speed of the indoor fan; if the temperature difference is less than the lower limit temperature value, it indicates that the gap between the current indoor environmental temperature and the temperature preferred by the user is small. Then, the minimum operating wind speed corresponding to the outdoor environmental temperature will be obtained and used as the target wind speed of the indoor fan. If the temperature difference is between the upper limit temperature value and the lower limit temperature value, then the minimum operating wind speed corresponding to the outdoor environmental temperature will be obtained, and the target wind speed of the indoor fan will be determined based on the minimum operating wind speed combined with the magnitude of the temperature difference.

[0110] It can be understood that regarding the above upper limit temperature value and lower limit temperature value, among them, the upper limit temperature value should be greater than the lower limit temperature value. In addition, the above upper limit temperature value and lower limit temperature value can be preset, and the present application embodiment does not make specific limitations on the magnitudes of the upper limit temperature value and the lower limit temperature value.

[0111] As Figure 3 shown, Figure 3 is a flowchart of a wind frequency linkage control method provided by another embodiment of the present application. Regarding determining the maximum operating frequency of the compressor according to the outdoor environmental temperature and the target wind speed in step S130 above, it may include, but is not limited to, step S310 and step S320.

[0112] Step S310: Determine the extreme frequencies of the compressor according to the outdoor ambient temperature, where the extreme frequencies include the maximum temperature limit frequency and / or the minimum temperature limit frequency;

[0113] Step S320: Determine the maximum operating frequency of the compressor according to the extreme frequencies and the target wind speed.

[0114] In one embodiment, first, the embodiment of the present application determines the extreme frequencies of the compressor according to the outdoor ambient temperature, where the extreme frequencies include the maximum temperature limit frequency and / or the minimum temperature limit frequency; then, the embodiment of the present application calculates according to the extreme frequencies and the target wind speed to obtain the maximum operating frequency of the compressor.

[0115] In one embodiment, it should be noted that for the above extreme frequencies, it may include the maximum temperature limit frequency, or the minimum temperature limit frequency, or both the maximum temperature limit frequency and the minimum temperature limit frequency at the same time. The embodiment of the present application does not make specific limitations on this.

[0116] It should be noted that the embodiment of the present application can determine the extreme frequencies according to the outdoor ambient temperature, so as to better determine the maximum operating frequency of the compressor, and then determine the final frequency of the compressor according to the maximum operating frequency and the target frequency. Therefore, it can reduce the comfort experience decline and energy-saving problems caused by "high frequency and low wind".

[0117] As Figure 4 shown, Figure 4 is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application. Regarding the determination of the extreme frequencies of the compressor according to the outdoor ambient temperature in step S310 above, it may include but is not limited to steps S410 and S420.

[0118] Step S410: Determine the current operating condition of the air conditioner according to the outdoor ambient temperature, where the current operating condition is one of multiple preset operating conditions, and the preset operating conditions and the extreme frequencies of the compressor correspond one by one;

[0119] Step S420: Determine the corresponding extreme frequencies of the compressor according to the current operating condition.

[0120] In one embodiment, first, the embodiment of the present application pre-sets multiple types of preset operating conditions, where for each preset operating condition, a maximum temperature limit frequency and a minimum temperature limit frequency are correspondingly set; then, after obtaining the outdoor ambient temperature, the embodiment of the present application judges the type of the current operating condition based on the numerical value of the outdoor ambient temperature; finally, the embodiment of the present application determines the corresponding maximum temperature limit frequency and minimum temperature limit frequency based on the type of the current operating condition.

[0121] It should be noted that for the above-mentioned multiple preset operating conditions, at least including the first preset operating condition and the second preset operating condition, the extreme value frequency of the first preset operating condition is greater than that of the second preset operating condition, where the outdoor environmental temperature corresponding to the first preset operating condition is higher than the outdoor environmental temperature corresponding to the second preset operating condition.

[0122] For example, the embodiments of the present application can preset two types of preset operating conditions, such as high-temperature conditions and normal conditions; among them, for each preset operating condition, a maximum temperature limit frequency and a minimum temperature limit frequency are correspondingly set; and, the maximum temperature limit frequency corresponding to the high-temperature condition is greater than the maximum temperature limit frequency corresponding to the normal condition, and the minimum temperature limit frequency corresponding to the high-temperature condition is greater than the minimum temperature limit frequency corresponding to the normal condition; then, after obtaining the outdoor environmental temperature, the embodiments of the present application will determine the type of the current operating condition based on the numerical value of the outdoor environmental temperature, for example, determine whether the current operating condition belongs to the high-temperature condition or the normal condition; finally, the embodiments of the present application will determine the corresponding maximum temperature limit frequency and minimum temperature limit frequency based on the type of the current operating condition.

[0123] In addition, it should be noted that for the above-mentioned multiple preset operating conditions, in addition to setting two types of preset operating conditions, three or more types of preset operating conditions can also be set, and the embodiments of the present application do not make specific limitations on this.

[0124] For example, the embodiments of the present application can preset three types of preset operating conditions, such as high-temperature conditions, medium-high temperature conditions, and normal conditions; among them, for each preset operating condition, a maximum temperature limit frequency and a minimum temperature limit frequency are correspondingly set; and, the maximum temperature limit frequencies corresponding to the high-temperature condition, the medium-high temperature condition, and the normal condition decrease in sequence, and the minimum temperature limit frequencies corresponding to the high-temperature condition, the medium-high temperature condition, and the normal condition decrease in sequence; then, after obtaining the outdoor environmental temperature, the embodiments of the present application will determine the type of the current operating condition based on the numerical value of the outdoor environmental temperature, for example, determine whether the current operating condition belongs to the high-temperature condition, the medium-high temperature condition, or the normal condition; finally, the embodiments of the present application will determine the corresponding maximum temperature limit frequency and minimum temperature limit frequency based on the type of the current operating condition.

[0125] In addition, it should be noted that for determining the maximum operating frequency of the compressor according to the extreme value frequency and the target wind speed in the above step S320, it may include but is not limited to Figures 5 to 7 the three implementation cases in

[0126] As Figure 5 shown, Figure 5It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application. Regarding determining the maximum operating frequency of the compressor according to the extreme value frequency and the target wind speed in the above step S320, it may include but is not limited to steps S510 and S520.

[0127] Step S510: When the target wind speed is greater than the upper wind speed threshold, determine the extreme value frequency as the maximum temperature limit frequency;

[0128] Step S520: Take the maximum temperature limit frequency as the maximum operating frequency of the compressor.

[0129] In one embodiment, after calculating the target wind speed between the indoor environmental temperature and the set temperature, the target wind speed will be compared with the upper wind speed threshold and the lower wind speed threshold. If the target wind speed is greater than the upper wind speed threshold, then at this time, the extreme value frequency corresponding to the outdoor environmental temperature will be obtained. This extreme value frequency is the maximum temperature limit frequency, and this maximum temperature limit frequency will be taken as the maximum operating frequency of the compressor.

[0130] It can be understood that regarding the above upper wind speed threshold, it can be preset, and the embodiments of the present application do not make specific limitations on the magnitude of the upper wind speed threshold.

[0131] As Figure 6 shown, Figure 6 It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application. Regarding determining the maximum operating frequency of the compressor according to the extreme value frequency and the target wind speed in the above step S320, it may include but is not limited to steps S610 and S620.

[0132] Step S610: When the target wind speed is less than or equal to the lower wind speed threshold, determine the extreme value frequency as the minimum temperature limit frequency;

[0133] Step S620: Take the minimum temperature limit frequency as the maximum operating frequency of the compressor.

[0134] In one embodiment, after calculating the target wind speed between the indoor environmental temperature and the set temperature, the target wind speed will be compared with the upper wind speed threshold and the lower wind speed threshold. If the target wind speed is less than or equal to the lower wind speed threshold, then at this time, the extreme value frequency corresponding to the outdoor environmental temperature will be obtained. This extreme value frequency is the minimum temperature limit frequency, and this minimum temperature limit frequency will be taken as the maximum operating frequency of the compressor.

[0135] It can be understood that regarding the above lower wind speed threshold, it can be preset, and the embodiments of the present application do not make specific limitations on the magnitude of the upper wind speed threshold.

[0136] As Figure 7 shown, Figure 7It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application. Regarding determining the maximum operating frequency of the compressor according to the extreme value frequency and the target wind speed in the above step S320, it may include but is not limited to steps S710 and S720.

[0137] Step S710: When the target wind speed is less than or equal to the upper wind speed threshold and greater than the lower wind speed threshold, determine that the extreme value frequency includes the maximum temperature limit frequency and the minimum temperature limit frequency;

[0138] Step S720: Determine the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the preset gain coefficient.

[0139] In one embodiment, after calculating the target wind speed between the indoor environmental temperature and the set temperature, the target wind speed will be compared with the upper wind speed threshold and the lower wind speed threshold. If the target wind speed is less than or equal to the upper wind speed threshold and greater than the lower wind speed threshold, then at this time, the extreme value frequency corresponding to the outdoor environmental temperature will be obtained. The extreme value frequency includes the maximum temperature limit frequency and the minimum temperature limit frequency, and the maximum operating frequency will be determined according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the preset gain coefficient.

[0140] It can be understood that regarding the above-mentioned preset gain coefficient, it can be preset, and the present application embodiment does not make specific limitations on the magnitude of the upper wind speed threshold.

[0141] In addition, it should be noted that regarding determining the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the preset gain coefficient in the above step S720, it may include but is not limited to Figure 8 or Figure 9 two implementation cases as follows:

[0142] As Figure 8 shown, Figure 8 It is a flowchart of the wind frequency linkage control method provided by another embodiment of the present application. Regarding the above step S720, it may include but is not limited to steps S810 and S820.

[0143] Step S810: Determine that the target wind speed is between the upper wind speed threshold and the intermediate wind speed threshold;

[0144] Step S820: Determine the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, the first gain coefficient, and the second gain coefficient, where the first gain coefficient is less than the second gain coefficient.

[0145] In one embodiment, after calculating the target wind speed between the indoor environmental temperature and the set temperature, if the target wind speed is between the upper wind speed threshold and the intermediate wind speed threshold, the maximum operating frequency of the compressor is calculated based on the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, the first gain coefficient, and the second gain coefficient at this time.

[0146] It should be noted that when the target wind speed is between the upper wind speed threshold and the intermediate wind speed threshold, the above-mentioned second gain coefficient corresponds to the multiplication coefficient of the target wind speed. Specifically, since the target wind speed is between the upper wind speed threshold and the intermediate wind speed threshold, that is, when there is still a certain gap between the current wind speed of the indoor fan and the user's preferred wind speed, a larger operating frequency can be calculated corresponding to the larger second gain coefficient.

[0147] It can be understood that regarding the above-mentioned intermediate wind speed threshold, its value is less than the upper wind speed threshold and greater than the lower wind speed threshold. In addition, the above-mentioned intermediate wind speed threshold can be preset, and the embodiment of the present application does not specifically limit the size of the intermediate wind speed threshold.

[0148] It can be understood that regarding the above-mentioned first gain coefficient and second gain coefficient, they can be preset, and the embodiment of the present application does not specifically limit the size of the first gain coefficient and the second gain coefficient.

[0149] As Figure 9 shown, Figure 9 is a flowchart of a wind frequency linkage control method provided by another embodiment of the present application. Regarding the above step S720, it may include but is not limited to step S910 and step S920.

[0150] Step S910: Determine that the target wind speed is between the intermediate wind speed threshold and the lower wind speed threshold;

[0151] Step S920: Determine the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the first gain coefficient.

[0152] In one embodiment, after calculating the target wind speed between the indoor environmental temperature and the set temperature, if the target wind speed is between the intermediate wind speed threshold and the lower wind speed threshold, the target wind speed of the indoor unit fan is calculated based on the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the first gain coefficient at this time.

[0153] It should be noted that when the target wind speed is between the intermediate wind speed threshold and the lower wind speed threshold, the above first gain coefficient corresponds to a multiplication coefficient of the target wind speed. Specifically, since the target wind speed is between the intermediate wind speed threshold and the lower wind speed threshold, that is, when the difference between the current indoor fan wind speed and the user-preferred wind speed is small, a relatively small first gain coefficient can be used to calculate a relatively small operating frequency.

[0154] In addition, as Figure 10 shown, Figure 10 is a flowchart of a wind frequency linkage control method provided by another embodiment of the present application. Regarding the above step S820, it may include, but is not limited to, steps S1010 and S1020.

[0155] Step S1010: Input the maximum temperature limit frequency, minimum temperature limit frequency, target wind speed, first gain coefficient, and second gain coefficient into the first frequency calculation model;

[0156] Step S1020: Obtain the maximum operating frequency of the compressor; wherein, the first frequency calculation model includes a first input variable, a second input variable, a third input variable, and a fourth input variable. The first input variable is used to be assigned the minimum temperature limit frequency, the second input variable is used to be assigned the first gain coefficient, the third input variable is used to be assigned the difference between the target wind speed and the intermediate wind speed threshold, and the fourth input variable is used to be assigned the ratio of the second gain coefficient to the difference between the intermediate wind speed threshold and the maximum temperature limit frequency and the minimum temperature limit frequency. The sum of the product value of the third input variable and the fourth input variable and the first input variable and the second input variable is the maximum operating frequency of the compressor.

[0157] In one embodiment, when the target wind speed is between the upper wind speed threshold and the intermediate wind speed threshold, the embodiment of the present application can calculate the corresponding maximum operating frequency through the following formula: f = f min +α+(v - 40)*β / 40(f max -f min ), where v is the target wind speed, f max is the maximum temperature limit frequency, f min is the minimum temperature limit frequency, α is the first gain coefficient, and β is the second gain coefficient.

[0158] In addition, as Figure 11 shown, Figure 11 is a flowchart of a wind frequency linkage control method provided by another embodiment of the present application. Regarding the above step S920, it may include, but is not limited to, steps S1110 and S1120.

[0159] Step S1110: Input the maximum temperature limit frequency, minimum temperature limit frequency, target wind speed, and first gain coefficient into the second frequency calculation model;

[0160] Step S1120: Obtain the maximum operating frequency of the compressor; wherein, the second frequency calculation model includes a fifth input variable, a sixth input variable, and a seventh input variable. The fifth input variable is used to be assigned the minimum temperature limit frequency, the sixth input variable is used to be assigned the target wind speed, the seventh input variable is used to be assigned the ratio of the first gain coefficient to the difference between the intermediate wind speed threshold and the maximum temperature limit frequency and the minimum temperature limit frequency. The sum of the product value of the sixth input variable and the seventh input variable and the fifth input variable is the maximum operating frequency of the compressor.

[0161] In an embodiment, when the target wind speed is between the intermediate wind speed threshold and the lower wind speed threshold, the present application embodiment can calculate the corresponding maximum operating frequency through the following formula: f = f min + v * α / 40 (f max - f min ), where v is the target wind speed, f max is the maximum temperature limit frequency, f min is the minimum temperature limit frequency, and α is the first gain coefficient.

[0162] In addition, it should be noted that regarding determining the final frequency of the compressor according to the target frequency and the maximum operating frequency in the above step S130, it may include but is not limited to Figures 12 to 13 the following two implementation cases, specifically as follows:

[0163] As Figure 12 shown, Figure 12 is a flowchart of a wind frequency linkage control method provided by another embodiment of the present application. Regarding the above step S130, this wind frequency linkage control method may also include but is not limited to step S1210 and step S1220.

[0164] Step S1210: Determine that the target frequency is less than the maximum operating frequency;

[0165] Step S1220: Use the target frequency as the final frequency of the compressor.

[0166] In an embodiment, if the target frequency is less than the maximum operating frequency, it indicates that the current indoor environmental temperature is lower than the set temperature. Similarly, it also indicates that the temperature effect finally adjusted based on the previous target frequency in the previous preset time is not good. In this regard, the present application embodiment will use this target frequency as the final frequency of the compressor.

[0167] As Figure 13 shown, Figure 13It is a flowchart of the wind frequency linkage control method provided by another embodiment of this application. Regarding the above step S130, the wind frequency linkage control method may further include, but is not limited to, step S1310 and step S1320.

[0168] Step S1310: Determine that the target frequency is greater than or equal to the maximum operating frequency;

[0169] Step S1320: Use the maximum operating frequency as the final frequency of the compressor.

[0170] In one embodiment, if the target frequency is greater than or equal to the maximum operating frequency, it indicates that the current indoor environmental temperature is higher than or equal to the set temperature, and it also indicates that the temperature effect finally adjusted based on the previous target frequency in the previous preset time is not good. In this regard, the embodiment of this application will use the maximum operating frequency as the final frequency of the compressor.

[0171] Based on the wind speed control methods of the above various embodiments, multiple overall embodiments of the wind speed control method of this application are respectively proposed below.

[0172] As Figures 14 to 15 shown, Figure 14 It is the overall flowchart of the wind frequency linkage control method provided by one embodiment of this application; Figure 15 It is a schematic diagram of the relationship between the maximum operating frequency of the compressor, the indoor fan wind speed, and the temperature difference provided by one embodiment of this application.

[0173] Specifically, the embodiment of this application proposes a control method for the wind frequency linkage control method of an air conditioner, aiming to further adjust the operating frequency of the compressor according to the outdoor environmental temperature, the target wind speed, and the target frequency, reduce the decline in comfort experience and energy-saving problems caused by "high frequency and low wind", and thus better meet the comfort and energy-saving requirements of users. Specifically, it includes, but is not limited to, step S1410, step S1420, step S1430, and step S1440.

[0174] Step S1410: After the air conditioner starts in the air supply, cooling, or dehumidification mode, collect the current outdoor environmental temperature, indoor environmental temperature, and the set temperature of the air conditioner;

[0175] Step S1420: According to the difference between the indoor environmental temperature T 1 and the set temperature T s , calculate the target frequency f t of the compressor and the target wind speed v according to the original control logic;

[0176] Step S1430: According to the outdoor environmental temperature T 1 and the target wind speed v, calculate the maximum operating frequency f max according to the wind frequency linkage logic 1;

[0177] Step S1440: Determine whether the target frequency f of the compressor t is greater than f max . If so, operate at the maximum operating frequency f max . Otherwise, continue to operate at the target frequency f t .

[0178] It should be noted that for the above-mentioned wind-frequency linkage logic 1, which is used to optimize the compressor frequency according to the wind speed, the specific details are as follows:

[0179] [1] The operating conditions are divided into three types: high-temperature condition, medium-high temperature condition, and normal condition according to the outdoor ambient temperature. Each condition corresponds to different maximum temperature limit frequencies and minimum temperature limit frequencies.

[0180] [2] Specifically, under different temperature conditions, the following relationships exist for the maximum temperature limit frequencies: f max高温 > f max中高温 > f max正常 . And for the minimum temperature limit frequencies, there are also f min高温 > f min中高温 > f min正常 . This is because when the outdoor temperature is high, the indoor cooling load is large, and the air conditioner needs to operate at a higher frequency to quickly cool down to the set temperature and improve user comfort. When the outdoor temperature is low, the indoor cooling load is relatively small. To prevent overshoot of the temperature caused by too high a frequency, it is necessary to limit its frequency from being too high.

[0181] [3] Calculate the maximum operating frequency f max高温 / 中高温 / 正常 in stages according to the target wind speed v, the maximum temperature limit frequency f min高温 / 中高温 / 正常 of the current condition, and the minimum temperature limit frequency f max .

[0182] [4] When the current condition is a high-temperature condition, the maximum operating frequency can be calculated as:

[0183]

[0184] [6] Specifically, is the gain coefficient when the fan wind speed is in the low wind speed and medium wind speed stages, and α < β. When 40 < v < 80, the cooling load slowly decreases, while the frequency remains at a relatively high level. To prevent the phenomenon of "low wind and high frequency", the frequency is limited by the fan wind speed, causing the frequency to drop rapidly and improving the stratification phenomenon. When 1 < v < 40, the air conditioner is in the low wind speed stage. At this time, the indoor temperature has basically reached the set temperature, and the cooling load is basically stable. To prevent the frequency from changing significantly with the fan wind speed, resulting in an increase in temperature fluctuations, a smaller gain coefficient is used in this stage.

[0185] [7] Further, the air velocity of the fan is also steplessly adjusted with an accuracy of 1% according to the working conditions (high temperature, medium-high temperature or low temperature) and the indoor temperature difference change, so as to adapt to the cooling load and frequency that decrease with the temperature drop.

[0186] [8] Further, when the operating condition is medium-high temperature or normal condition, the maximum operating frequency d is also calculated through a similar operating logic. max calculation.

[0187] [9] The segmented air frequency linkage logic 1 can be represented by the following table:

[0188]

[0189]

[0190] In a specific embodiment, the air conditioner adjusts the operating frequency of the compressor according to the following air frequency linkage control logic:

[0191] [1] After the user starts the air conditioner in the air supply, cooling or dehumidification mode, the air conditioner receives the set temperature instruction sent by the user, and obtains the state parameters such as the current set temperature of the air conditioner, the indoor environmental temperature and the outdoor environmental temperature.

[0192] [2] When the air conditioner starts running, according to the difference ΔT between the indoor environmental temperature and the set temperature, the target frequency and the target air velocity are calculated according to the original control logic. The air velocity of the fan is also steplessly adjusted with an accuracy of 1% according to the working conditions (high temperature, medium-high temperature or low temperature) and the indoor temperature difference change, so as to adapt to the cooling load and frequency that decrease with the temperature drop.

[0193] [3] Specifically, when ΔT > 3.5, the fan is at the maximum air velocity; when ΔT < -1, the fan is at the minimum air velocity; when -1 < ΔT < 3.5, the air velocity of the fan changes linearly with an accuracy of 0.1 degree.

[0194] [4] Determine which of the high temperature condition, medium-high temperature condition, and normal condition the current operating stage is in according to the outdoor environmental temperature, and determine the maximum temperature limit frequency and the minimum temperature limit frequency of the compressor according to the condition.

[0195] [5] Specifically, when the outdoor environmental temperature T 2 > 43°C, the operating condition is the high temperature condition; when the outdoor environmental temperature 35°C < T 2 < 43°C, the operating condition is the medium-high temperature condition; and when the outdoor environmental temperature T 2 < 35°C, the operating condition is the normal condition.

[0196] [5] Determine the maximum operating frequency of the compressor in stages according to the air velocity of the fan, and judge the size relationship with the target frequency of the compressor.

[0197] [6] If f max > f t , then it runs at the target frequency f t ; if f t > f max , then it runs at the maximum operating frequency.

[0198] Based on the wind frequency linkage control methods of the above various embodiments, the following respectively present the various embodiments of the controller, indoor unit fan, air conditioner, and computer-readable storage medium of this application.

[0199] As Figure 16 shown, Figure 16 is a schematic structural diagram of a controller for executing the wind frequency linkage control method provided by an embodiment of this application. The controller 100 implemented in this application includes: a processor 110, a memory 120, and a computer program stored on the memory 120 and executable on the processor 110. Among them, Figure 16 one processor 110 and one memory 120 are taken as examples.

[0200] The processor 110 and the memory 120 can be connected through a bus or other means, Figure 16 and taking connection through a bus as an example.

[0201] The memory 120, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. In addition, the memory 120 can include high-speed random access memory, and can also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory 120 can optionally include a memory 120 remotely set relative to the processor 110, and these remote memories 120 can be connected to the controller 100 through a network. Examples of the above network include but are not limited to the Internet, enterprise intranet, local area network, mobile communication network, and their combinations.

[0202] Those skilled in the art can understand that Figure 16 the device structure shown in

[0203] does not constitute a limitation on the controller 100, and it can include more or fewer components than shown in the figure, or combine some components, or have different component arrangements. Figure 16 In the controller 100 shown, the processor 110 can be used to call the wind frequency linkage control program stored in the memory 120, so as to implement the above-mentioned wind frequency linkage control method. Specifically, the non-transitory software programs and instructions required to implement the wind frequency linkage control method of the above embodiments are stored in the memory 120, and when executed by the processor 110, the wind frequency linkage control method of the above embodiments is executed.

[0204] It should be noted that since the controller 100 of the embodiment of the present application can execute the wind frequency linkage control method of any of the above embodiments, the specific implementation manners and technical effects of the controller 100 of the embodiment of the present application can refer to the specific implementation manners and technical effects of the wind frequency linkage control method of any of the above embodiments.

[0205] In addition, an embodiment of the present application further provides an air conditioner, including the controller of the above embodiment.

[0206] It should be noted that since the air conditioner of the embodiment of the present application includes the controller of the above embodiment, and the controller of the above embodiment can execute the wind frequency linkage control method of any of the above embodiments, the specific implementation manners and technical effects of the air conditioner of the embodiment of the present application can refer to the specific implementation manners and technical effects of the wind frequency linkage control method of any of the above embodiments.

[0207] In addition, an embodiment of the present application further provides a computer-readable storage medium, which stores computer-executable instructions for executing the above wind frequency linkage control method. Exemplarily, execute the Figures 1 to 14 method steps described above.

[0208] It should be noted that since the computer-readable storage medium of the embodiment of the present application can execute the wind frequency linkage control method of any of the above embodiments, the specific implementation manners and technical effects of the computer-readable storage medium of the embodiment of the present application can refer to the specific implementation manners and technical effects of the wind frequency linkage control method of any of the above embodiments.

[0209] Those of ordinary skill in the art will appreciate that all or some of the steps and systems disclosed above in the methods can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0210] The above is a specific description of the preferred embodiment of the present application. However, the present application is not limited to the above embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present application. These equivalent deformations or substitutions are all included within the scope defined by the claims of the present application.

Claims

1. A wind frequency linkage control method, characterized in that, applied to an air conditioner, the wind frequency linkage control method includes: Obtaining the outdoor ambient temperature, the indoor ambient temperature and the set temperature of the air conditioner; Determining the target frequency of the compressor and the target wind speed of the indoor fan according to the indoor ambient temperature and the set temperature; Determining the maximum operating frequency of the compressor according to the outdoor ambient temperature and the target wind speed, and determining the final frequency of the compressor according to the target frequency and the maximum operating frequency; Controlling the indoor fan to operate at the target wind speed, and controlling the compressor to operate at the final frequency.

2. The wind frequency linkage control method according to claim 1, characterized in that, The determining the target frequency of the compressor and the target wind speed of the indoor fan according to the indoor ambient temperature and the set temperature includes: Determining the temperature difference between the indoor ambient temperature and the set temperature; Determining the target frequency of the compressor and the target wind speed of the indoor fan according to the temperature difference, wherein there is a positive correlation between the temperature difference and both the target frequency and the target wind speed.

3. The wind frequency linkage control method according to claim 2, characterized in that, The determining the target frequency of the compressor and the target wind speed of the indoor fan according to the temperature difference includes: Determining the extreme wind speed of the indoor fan according to the outdoor ambient temperature, wherein the extreme wind speed includes the maximum operating wind speed and / or the minimum operating wind speed; Determining the target wind speed of the indoor fan according to the temperature difference and the extreme wind speed.

4. The wind frequency linkage control method according to claim 3, characterized in that, The determining the extreme wind speed of the indoor fan according to the outdoor ambient temperature includes: Determining the current operating condition of the air conditioner according to the outdoor ambient temperature, wherein the current operating condition is one of a plurality of preset operating conditions, and the preset operating conditions and the extreme wind speed of the indoor fan correspond one by one; Determining the corresponding extreme wind speed of the indoor fan according to the current operating condition.

5. The wind frequency linkage control method according to claim 3, characterized in that, The determining the target wind speed of the indoor fan according to the temperature difference and the extreme wind speed includes one of the following: When the temperature difference is greater than the upper limit temperature value, determining the extreme wind speed as the maximum operating wind speed and taking the maximum operating wind speed as the target wind speed of the indoor fan; When the temperature difference is less than the lower limit temperature value, determining the extreme wind speed as the minimum operating wind speed and taking the minimum operating wind speed as the target wind speed of the indoor fan; When the temperature difference is between the upper limit temperature value and the lower limit temperature value, determining the extreme wind speed as the minimum operating wind speed and determining the target wind speed of the indoor fan according to the minimum operating wind speed and the temperature difference.

6. The wind frequency linkage control method according to claim 1, characterized in that, The determining the maximum operating frequency of the compressor according to the outdoor ambient temperature and the target wind speed includes: Determine the extreme frequency of the compressor according to the outdoor ambient temperature, where the extreme frequency includes the maximum temperature limit frequency and / or the minimum temperature limit frequency; Determine the maximum operating frequency of the compressor according to the extreme frequency and the target wind speed.

7. The wind frequency linkage control method according to claim 6, characterized in that the determining the extreme frequency of the compressor according to the outdoor ambient temperature includes: Determine the current operating condition of the air conditioner according to the outdoor ambient temperature, where the current operating condition is one of multiple preset operating conditions, and the preset operating conditions and the extreme frequency of the compressor correspond one by one; Determine the corresponding extreme frequency of the compressor according to the current operating condition.

8. The wind frequency linkage control method according to claim 7, characterized in that the multiple preset operating conditions include a first preset operating condition and a second preset operating condition, and the extreme frequency of the first preset operating condition is greater than the extreme frequency of the second preset operating condition, where the outdoor ambient temperature corresponding to the first preset operating condition is higher than the outdoor ambient temperature corresponding to the second preset operating condition.

9. The wind frequency linkage control method according to claim 6, characterized in that the determining the maximum operating frequency of the compressor according to the extreme frequency and the target wind speed includes one of the following: When the target wind speed is greater than the upper wind speed threshold, determine that the extreme frequency is the maximum temperature limit frequency, and use the maximum temperature limit frequency as the maximum operating frequency of the compressor; When the target wind speed is less than or equal to the lower wind speed threshold, determine that the extreme frequency is the minimum temperature limit frequency, and use the minimum temperature limit frequency as the maximum operating frequency of the compressor; When the target wind speed is less than or equal to the upper wind speed threshold and greater than the lower wind speed threshold, determine that the extreme frequency includes the maximum temperature limit frequency and the minimum temperature limit frequency, and determine the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed and the preset gain coefficient.

10. The wind frequency linkage control method according to claim 9, characterized in that the determining the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed and the preset gain coefficient includes one of the following: When the target wind speed is less than or equal to the upper wind speed threshold and greater than the intermediate wind speed threshold, determine the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, the first gain coefficient and the second gain coefficient, where the first gain coefficient is less than the second gain coefficient; When the target wind speed is less than or equal to the intermediate wind speed threshold and greater than the lower wind speed threshold, determine the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed and the first gain coefficient.

11. The wind frequency linkage control method according to claim 10, characterized in that Determining the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, the first gain coefficient, and the second gain coefficient includes: Inputting the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, the first gain coefficient, and the second gain coefficient into a first frequency calculation model to obtain the maximum operating frequency of the compressor; Wherein, the first frequency calculation model includes a first input variable, a second input variable, a third input variable, and a fourth input variable. The first input variable is used to be assigned the minimum temperature limit frequency, the second input variable is used to be assigned the first gain coefficient, the third input variable is used to be assigned the difference between the target wind speed and the intermediate wind speed threshold, and the fourth input variable is used to be assigned the ratio of the second gain coefficient to the difference between the intermediate wind speed threshold, the maximum temperature limit frequency, and the minimum temperature limit frequency. The sum of the product value of the third input variable and the fourth input variable, the first input variable, and the second input variable is the maximum operating frequency of the compressor.

12. The wind frequency linkage control method according to claim 10, characterized in that Determining the maximum operating frequency of the compressor according to the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the first gain coefficient includes: Inputting the maximum temperature limit frequency, the minimum temperature limit frequency, the target wind speed, and the first gain coefficient into a second frequency calculation model to obtain the maximum operating frequency of the compressor; Wherein, the second frequency calculation model includes a fifth input variable, a sixth input variable, and a seventh input variable. The fifth input variable is used to be assigned the minimum temperature limit frequency, the sixth input variable is used to be assigned the target wind speed, and the seventh input variable is used to be assigned the ratio of the first gain coefficient to the difference between the intermediate wind speed threshold, the maximum temperature limit frequency, and the minimum temperature limit frequency. The sum of the product value of the sixth input variable and the seventh input variable and the fifth input variable is the maximum operating frequency of the compressor.

13. The wind frequency linkage control method according to any one of claims 1 to 12, characterized in that Determining the final frequency of the compressor according to the target frequency and the maximum operating frequency includes one of the following: When the target frequency is less than the maximum operating frequency, using the target frequency as the final frequency of the compressor; When the target frequency is greater than or equal to the maximum operating frequency, using the maximum operating frequency as the final frequency of the compressor.

14. A controller, characterized in that including: A memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor runs the computer program, it executes the wind frequency linkage control method according to any one of claims 1 to 13.

15. An air conditioner, characterized in that including the controller according to claim 14.

16. A computer-readable storage medium, characterized in that: Stored with computer-executable instructions for performing the wind frequency linkage control method according to any one of claims 1 to 13.

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