Air conditioner use control method and device, air conditioner and storage medium

Abstract

The invention discloses an air conditioner use control method and device, an air conditioner and a storage medium. The method comprises the steps that a control instruction sent by a user is obtained, the air conditioner is controlled to operate according to the control instruction, and the theoretical air speed of the air conditioner is determined according to the control instruction; acquiring a first real-time wind speed in the running process of the air conditioner, performing cleaning control based on the theoretical wind speed and the first real-time wind speed, and setting a starting wind speed after the cleaning control; acquiring a second real-time wind speed and the temperature of a pipeline temperature sensing bulb of the evaporator; and anti-freezing control is conducted on the air conditioner based on the starting air speed, the second real-time air speed and the pipeline temperature wrap temperature. Whether the self-cleaning operation is carried out or not is judged according to the wind speed in the running process of the air conditioner, meanwhile, whether the anti-freezing operation is carried out or not is judged according to the wind speed of the air conditioner and the temperature of the pipeline temperature sensing bulb, in this way, self-cleaning and anti-freezing of the air conditioner can be achieved at the same time, and then the using effect of the air conditioner is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner use control method and device, an air conditioner and a storage medium. Background Art

[0002] As the air conditioner is used for a longer time, dust, lint and other pollutants will continue to accumulate on the air inlet side of the evaporator. The adhesion of such pollutants will increase the wind resistance of the air duct of the air conditioner, increase the power consumption and heat generation of the fan, thereby reducing the service life of the fan. It will also reduce the air volume of the air conditioner, affect the heat exchange effect of the evaporator, reduce the heat exchange performance and service life of the evaporator and heat exchanger, cause abnormal thermal protection shutdown, and shorten the service life of the compressor.

[0003] At present, the main cleaning method for the heat exchanger of the air conditioner is manual cleaning with manual reminder. The user needs to disassemble the panel and the panel body as a whole, and then clean the pollutants on the surface of the evaporator. It can be seen that this cleaning method has the disadvantages of being difficult to disassemble, laborious and dangerous. The existing technology also has a way to set the air conditioner to enter the automatic cleaning mode by setting logic. However, the self-cleaning air conditioners on the current market require users to judge whether they need to be cleaned, and then manually set it to enter the self-cleaning mode. The disadvantage of this method is that it is possible to forget to clean for a long time or clean too frequently, resulting in unnecessary energy waste.

[0004] At the same time, in some special user application scenarios, such as in winter or when the temperature is low, the air conditioner still needs to operate in cooling mode. When the existing air conditioner operates in cooling mode under conditions of low outdoor ambient temperature, when the air conditioner fan speed is low and the wind speed is low, the evaporator temperature is too low, which will easily cause frost or even ice on the indoor evaporator, and large-scale frosting will also reduce the air volume of the indoor unit, affecting the reliability of the air conditioner. Most of the existing air conditioners are judged by the pipe temperature conditions of the simple evaporator design, that is, when the pipe temperature of the evaporator reaches the corresponding conditions, the air conditioner enters the anti-freeze mode and stops processing to dissolve the frost on the evaporator. However, the defect of this judgment method is that if the evaporator liquid is unevenly distributed due to assembly accuracy problems, the temperature of each flow path of the evaporator is uneven, or the temperature of the flow path detected by the temperature sensor is high due to the unreasonable position of the evaporator pipe temperature sensor selected during the design, in these cases, it is difficult for the air conditioner to enter the anti-freeze mode, causing the flow path with lower temperature of the evaporator to be severely frosted or even frozen. For example, the prior art CN114791155A provides a method for controlling the anti-freezing of the evaporator, which determines whether the indoor unit is frosted by detecting the outlet air temperature of the indoor unit. However, in this scheme, the outlet air temperature of the indoor unit of the air conditioner is greatly affected by the speed of the indoor unit. The higher the speed, the higher the outlet air temperature. When a larger air conditioning unit is configured for operation, there will be a situation where the internal pipe temperature is very low and the set indoor unit wind speed is slightly higher. At this time, the outlet air temperature will not be very low, but the evaporator may have been frosted, but it is impossible to enter the anti-freezing protection in time; directly increasing the speed of the indoor unit, adjusting the position of the air guide plate, or directly shutting down the machine will greatly affect the user experience, causing a series of negative effects such as noise and poor comfort. For another example, the prior art CN109210679A also provides a method for controlling the anti-freezing of the evaporator, which performs anti-freezing protection on the air conditioner by detecting the wind speed on the air outlet side of the evaporator of the air conditioner and comparing it with the set value. However, this solution cannot clearly determine the degree of dirtiness of the air conditioner, the extent to which the air outlet speed is affected by the dirtiness of the evaporator, and for split units, the air outlet speed is affected by the installation position and the wind guide position set by the user. When there are obstacles around the air inlet or the air guide plate is at the maximum angle, the wind speed will become smaller. Therefore, it is not accurate to determine whether the frosting is serious by using a fixed set value standard for wind speed judgment. For another example, the prior art CN105627524A also provides a method for controlling the anti-freeze of the evaporator, which detects the evaporator temperature and controls the opening of the electronic valve according to the judgment of the evaporator coil sensor temperature and the preset value to prevent the evaporator from freezing. This solution is the same as the traditional anti-freeze protection detection method. It cannot provide effective protection when the unit pipeline temperature sensor fails or the manually assembled temperature sensor is not inserted or not in place. It cannot enter the anti-freeze protection in time when the evaporator liquid distribution is uneven and the position of the pipeline temperature sensor is unreasonable. Summary of the invention

[0005] The embodiments of the present invention provide an air conditioner use control method, device, air conditioner and storage medium, aiming to simultaneously achieve the self-cleaning and anti-freezing effects of the air conditioner, thereby improving the use effect of the air conditioner.

[0006] In a first aspect, an embodiment of the present invention provides an air conditioner use control method, comprising:

[0007] Acquire a control instruction sent by a user, control the operation of the air conditioner according to the control instruction, and determine a theoretical wind speed of the air conditioner according to the control instruction;

[0008] Acquiring a first real-time wind speed during the operation of the air conditioner, performing cleaning control on the air conditioner based on the theoretical wind speed and the first real-time wind speed, and setting a start-up wind speed after the cleaning control based on the first real-time wind speed;

[0009] After the cleaning control is completed, the air conditioner is controlled to run at the startup wind speed, and the second real-time wind speed of the air conditioner and the temperature of the pipe temperature sensing package of the evaporator of the air conditioner are continuously obtained;

[0010] The air conditioner is subjected to anti-freezing control based on the startup wind speed, the second real-time wind speed and the temperature of the pipeline temperature sensing package.

[0011] In a second aspect, an embodiment of the present invention provides an air conditioner use control device, comprising:

[0012] A first acquisition unit, configured to acquire a control instruction sent by a user, control the operation of the air conditioner according to the control instruction, and determine a theoretical wind speed of the air conditioner according to the control instruction;

[0013] a first control unit, configured to obtain a first real-time wind speed during operation of the air conditioner, perform cleaning control on the air conditioner based on the theoretical wind speed and the first real-time wind speed, and set a start-up wind speed after cleaning control based on the first real-time wind speed;

[0014] A second acquisition unit is used to control the air conditioner to operate according to the startup wind speed after completing the cleaning control, and continue to acquire the second real-time wind speed of the air conditioner and the temperature of the pipe temperature sensing package of the evaporator of the air conditioner;

[0015] The second control unit is used to perform anti-freezing control on the air conditioner based on the startup wind speed, the second real-time wind speed and the temperature of the pipeline temperature sensing package.

[0016] In a third aspect, an embodiment of the present invention provides an air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the air conditioner use control method as described in the first aspect is implemented.

[0017] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the air conditioner use control method described in the first aspect is implemented.

[0018] The embodiment of the present invention provides a method, device, air conditioner and storage medium for controlling the use of an air conditioner. The method includes: obtaining a control instruction sent by a user, controlling the operation of the air conditioner according to the control instruction, and determining the theoretical wind speed of the air conditioner according to the control instruction; obtaining the first real-time wind speed during the operation of the air conditioner, performing cleaning control on the air conditioner based on the theoretical wind speed and the first real-time wind speed, and setting the starting wind speed after the cleaning control based on the first real-time wind speed; after completing the cleaning control, controlling the air conditioner to operate according to the starting wind speed, and continuing to obtain the second real-time wind speed of the air conditioner and the temperature of the pipeline temperature sensing package of the evaporator of the air conditioner; performing anti-freezing control on the air conditioner based on the starting wind speed, the second real-time wind speed and the temperature of the pipeline temperature sensing package. The embodiment of the present invention determines whether to perform a self-cleaning operation according to the wind speed during the operation of the air conditioner, and determines whether to perform an anti-freezing operation in combination with the wind speed of the air conditioner and the temperature of the pipeline temperature sensing package, so that the self-cleaning and anti-freezing effects of the air conditioner can be achieved at the same time, thereby improving the use effect of the air conditioner, improving the operating reliability of the air conditioner, and solving the problems of resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of a flow chart of an air conditioner use control method provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of a sub-flow chart of step S101 in a method for controlling the use of an air conditioner provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a sub-flow chart of step S102 in a method for controlling the use of an air conditioner provided by an embodiment of the present invention;

[0023] Figure 4 Another schematic diagram of a flow chart of an air conditioner use control method provided by an embodiment of the present invention;

[0024] Figure 5 A schematic diagram of a sub-flow chart of step S104 in a method for controlling the use of an air conditioner provided by an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of a sub-flow chart of step S503 in an air conditioner use control method provided by an embodiment of the present invention;

[0026] Figure 7 Another sub-flow diagram of step S101 in an air conditioner use control method provided by an embodiment of the present invention;

[0027] Figure 8 Another flow chart of an air conditioner use control method provided by an embodiment of the present invention;

[0028] Fig. 9 A schematic block diagram of an air conditioner use control device provided by an embodiment of the present invention;

[0029] Fig.10 A first sub-schematic block diagram of an air conditioner use control device provided by an embodiment of the present invention;

[0030] Fig.11 A second sub-schematic block diagram of an air conditioner use control device provided by an embodiment of the present invention;

[0031] Fig.12 A third sub-schematic block diagram of an air conditioner use control device provided by an embodiment of the present invention;

[0032] Fig.13 A fourth sub-schematic block diagram of an air conditioner use control device provided by an embodiment of the present invention;

[0033] Fig.14 A fifth sub-schematic block diagram of an air conditioner use control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0036] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0037] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0038] See below Figure 1 , an embodiment of the present invention provides an air conditioner use control method, which specifically includes: steps S101 to S104.

[0039] Step S101, obtaining a control instruction sent by a user, controlling the operation of an air conditioner according to the control instruction, and determining a theoretical wind speed of the air conditioner according to the control instruction;

[0040] Step S102, obtaining a first real-time wind speed during the operation of the air conditioner, performing cleaning control on the air conditioner based on the theoretical wind speed and the first real-time wind speed, and setting a start-up wind speed after cleaning control based on the first real-time wind speed;

[0041] Step S103, after completing the cleaning control, controlling the air conditioner to run at the startup wind speed, and continuing to obtain the second real-time wind speed of the air conditioner and the temperature of the pipe temperature sensing package of the evaporator of the air conditioner;

[0042] Step S104, performing anti-freezing control on the air conditioner based on the startup wind speed, the second real-time wind speed and the temperature of the pipeline temperature sensing package.

[0043] In this embodiment, the control instruction for the air conditioner sent by the user is first obtained. The control instruction may specifically include the operating time, wind speed gear, and wind sweeping position of the air conditioner, so as to determine the theoretical wind speed of the air conditioner under normal conditions according to the control instruction, and then obtain the actual wind speed of the air conditioner, so as to determine whether there is an operating obstacle of the air conditioner according to the theoretical wind speed and the actual wind speed, and then perform self-cleaning control on the air conditioner. Then, the temperature of the pipe temperature sensing package of the evaporator in the air conditioner is obtained, and combined with the wind speed of the air conditioner, it is determined whether there is a risk of freezing of the air conditioner, and then the air conditioner is controlled to prevent freezing.

[0044] This embodiment determines whether to perform a self-cleaning operation based on the wind speed during the operation of the air conditioner, and determines whether to perform an anti-freezing operation based on the wind speed of the air conditioner and the temperature of the pipeline temperature sensing package. In this way, the self-cleaning and anti-freezing effects of the air conditioner can be achieved at the same time, thereby improving the use effect of the air conditioner, improving the operating reliability of the air conditioner, and solving the problem of waste of resources. Through the air conditioner use method provided by this embodiment, the degree of dirtiness of the air conditioner can be judged and warned, and then enter the automatic cleaning mode or promptly remind the user to clean manually, thereby solving the problem of energy waste caused by the user forgetting to clean for a long time or cleaning too frequently. At the same time, it can also solve the problem that the anti-freezing control effect is not stable and reliable when the pipe temperature sensing package fails to detect abnormalities, or when the evaporator is unevenly distributed due to assembly accuracy and other problems, and the position of the pipeline temperature sensing package is unreasonable.

[0045] In actual application scenarios, wind speed detection and acquisition can be achieved by adding a wind speed detection and data processing module to the existing air conditioner. For example, a wind speed detection unit can be added at the air outlet of the indoor unit of the variable frequency air conditioning system, or a wind pressure detection unit can be set on the air guide plate of the air conditioner, etc., to record the air outlet wind speed data of the air conditioner in real time.

[0046] In one embodiment, if Figure 2 As shown, the step S101 includes: steps S201 to S205.

[0047] Step S201, when the air conditioner is installed and turned on for the first time, controlling the indoor unit of the air conditioner to start, controlling the air guide plate of the air conditioner to be in a first position, and recording the wind speed data corresponding to all speed gears of the indoor unit of the air conditioner when the air guide plate is in the first position;

[0048] Step S202, controlling the air guide plate of the air conditioner to be adjusted to a second position, and recording the wind speed data corresponding to all speed gears of the indoor unit of the air conditioner when the air guide plate is in the second position;

[0049] Step S203, and so on, until the wind speed data corresponding to all speed gears of the indoor unit when the air guide plate of the air conditioner is in different positions are recorded;

[0050] Step S204, setting the wind speed data corresponding to all speed gears of the indoor unit when the air guide plate of the air conditioner is at different positions as original data and storing them; wherein the theoretical wind speed is obtained through the original data.

[0051] In this embodiment, when determining the theoretical wind speed of the air conditioner according to the control instruction sent by the user, the theoretical wind speed is determined based on the pre-collected raw data, that is, the wind speed of the air conditioner at different gears and different wind guide positions is collected in advance to form the raw data, and then when receiving the control instruction sent by the user, the theoretical wind speed can be found according to the gear, wind speed and other parameters in the control instruction. Specifically, combined with Figure 7 After the air conditioning unit is installed in the user's home, the original data collection logic is executed when it is turned on for the first time. First, start the indoor unit alone, and put the upper and lower air guide plates in position 1, the left and right air guide plates in position 1, and the indoor unit speed in the first gear. After a certain period of time (for example, t0, which can be 10 to 20 seconds), the air conditioner is basically stable at this time, and the corresponding wind speed of the air conditioner at this time is recorded (i.e., the first wind speed); then increase the speed of the indoor unit to the second gear, and then record the corresponding wind speed of the air conditioner at this time after time t0 (i.e., the second wind speed), increase the speed of the indoor unit by one gear again, and record the corresponding wind speed of the air conditioner at this time after time t0 (which can be called the third wind speed). And so on, until the indoor unit reaches the highest gear speed, at this time, the indoor unit wind speed data corresponding to all gear speeds of the indoor unit can be recorded when the upper and lower air guide plates are in position 1 and the left and right air guide plates are in position 1;

[0052] Secondly, adjust the left and right air guide plates to position 2, and record the wind speed data of the indoor unit corresponding to all gear speeds of the indoor unit in the same way as the gear adjustment method above. Increase the left and right air guide plate positions again and record the wind speed until the left and right air guide plates reach the maximum position. This can record the wind speed data of the indoor unit corresponding to all gear speeds of the indoor unit when the upper and lower air guide plates are in position 1 and the left and right air guide plates are in all positions;

[0053] Again, adjust the upper and lower air guide plates to position 2. In the same way as the left and right air guide plates, record the indoor unit wind speed data corresponding to all positions of the left and right air guide plates until the upper and lower air guide plates reach the maximum position. This can record the indoor unit wind speed data corresponding to all gear speeds of the indoor unit when the upper and lower air guide plates are in all positions and the left and right air guide plates are in all positions.

[0054] Thus, the wind speed data corresponding to the gear position of the wind turbine when the wind deflector is in different positions can be obtained, thereby completing the raw data collection. Furthermore, the collected raw data can be recorded in the database of the controller chip for subsequent call.

[0055] In one embodiment, if Figure 3 As shown, the step S102 includes: steps S301 to S306.

[0056] Step S301, calculating a first attenuation coefficient related to wind speed according to the theoretical wind speed and the first real-time wind speed;

[0057] Step S302: comparing the first attenuation coefficient with a preset first constant;

[0058] Step S303: when the first attenuation coefficient is greater than or equal to a preset first constant, setting the first real-time wind speed as the startup wind speed, and controlling the air conditioner to continue to operate at the startup wind speed;

[0059] Step S304: when the first attenuation coefficient is less than a preset first constant, determining whether the air conditioner is in the first power-on state after power-on and power-off;

[0060] Step S305: if it is determined that the air conditioner is in the first power-on state after power on and off, the air conditioner is controlled to perform a self-cleaning operation, and after the self-cleaning operation is completed, the air conditioner is controlled to start running according to the control instruction sent by the user;

[0061] Step S306: If it is determined that the air conditioner is not in the first start-up state after power on and off, the air conditioner is controlled to start running according to the control instruction sent by the user.

[0062] In this embodiment, when the air conditioner is self-cleaned by combining the theoretical wind speed and the actual wind speed, Figure 8 , first calculate the first attenuation coefficient α between the theoretical wind speed S0 and the first actual wind speed S1: α=S1 / S0. Then determine the relationship between the first attenuation coefficient α and the constant a. When the first attenuation coefficient α≥constant a, it means that the outlet wind speed is not much attenuated compared to the theoretical value at this time, and the unit can be controlled to continue running. At the same time, the starting wind speed S'=S1 is assigned for subsequent detection and judgment; when the first attenuation coefficient α<constant a, it means that the outlet wind speed is seriously attenuated at this time, and the evaporator is seriously dirty and blocked, so as to further determine whether it is the first start-up. That is, if it is determined that this is the first time the air conditioner is turned on after power on and off, the automatic cleaning logic of the indoor unit must be executed first. After the automatic cleaning is completed, the air conditioning unit starts normally according to the user settings; if it is determined that this is not the first time to start, it means that the unit has recently executed the automatic cleaning program. In order to avoid repeatedly entering the automatic cleaning and affecting the user experience, the unit starts normally according to the user settings.

[0063] Further, such as Figure 4 As shown, step S305 includes steps S401 to S406.

[0064] Step S401, after the air conditioner has been running for a certain period of time, obtaining a third real-time wind speed of the air conditioner;

[0065] Step S402: calculating a second attenuation coefficient related to wind speed according to the theoretical wind speed and the third real-time wind speed;

[0066] Step S403, comparing the second attenuation coefficient with a preset second constant;

[0067] Step S404: when the second attenuation coefficient is greater than or equal to the second constant, setting the third real-time wind speed as the startup wind speed, and controlling the air conditioner to continue to operate at the startup wind speed;

[0068] Step S405: When the second attenuation coefficient is less than the second constant, a cleaning alarm is issued, and after receiving cleaning feedback sent by the user, the third real-time wind speed is set as the startup wind speed so that the air conditioner continues to operate at the startup wind speed.

[0069] Continue to combine Figure 8 , when the air conditioner runs for a period of time (for example, t2, specifically 30 minutes), the system parameters of the air conditioner unit tend to be stable, and the real-time wind speed S2 (i.e., the third real-time wind speed) of the air conditioner is recorded at this time. And the second attenuation coefficient β is calculated according to the theoretical wind speed S0 and the third real-time wind speed S2: β=S2 / S0. Then the relationship between the second attenuation coefficient β and the constant a (i.e., the second constant, it can be understood that the second constant can be the same as the first constant or different) is determined. When the second attenuation coefficient β≥constant a, it means that the outlet wind speed is not greatly attenuated at this time, the automatic cleaning effect is obvious, the unit continues to run, and the start wind speed S'=S2 is assigned at the same time for subsequent detection and judgment; when the second attenuation coefficient β<constant a, it means that the outlet wind speed is seriously attenuated at this time, the surface of the evaporator is seriously dirty, and the automatic cleaning cannot be completely solved. Therefore, the display screen can issue a cleaning alarm such as a serious dirt warning to remind the user to clean manually in time to avoid affecting the normal operation of the unit or even causing health problems for the user. At the same time, the start wind speed S'=S2 is assigned for subsequent detection and judgment.

[0070] In a specific embodiment, step S305 includes:

[0071] Control the air conditioner to operate in cooling mode to produce condensation water that can combine with dust on the evaporator surface;

[0072] Lowering the surface temperature of the evaporator to cause condensation water to frost;

[0073] After frosting is completed, the surface temperature of the evaporator is increased to defrost the frosted condensed water.

[0074] When executing the self-cleaning logic, condensation is first generated through the cooling mode, so that the condensed water combines with the dust on the evaporator, and the surface temperature of the evaporator is further reduced, and the condensed water is condensed into a frost layer. Then, the four-way valve is used to reverse the direction, so that the surface temperature of the evaporator is rapidly increased, for example, to about 55°C, for rapid defrosting and sterilization. The defrosted water will flush the dust to the bottom shell water tray and discharge it, thereby achieving the purpose of self-cleaning. Here, when the air conditioner is in the condensation stage, the indoor unit is in the lowest wind speed state, when the air conditioner is in the frosting stage, the indoor unit is in the closed state, and when the air conditioner is in the defrosting and sterilization stage, the indoor unit is in a state where the wind speed increases step by step.

[0075] In one embodiment, if Figure 5 As shown, the step S104 includes: steps S501 to S503.

[0076] Step S501, comparing the temperature of the pipeline temperature sensing package with a preset temperature threshold within a preset time period;

[0077] Step S502: if the temperature of the pipeline temperature sensing package is continuously less than or equal to the preset temperature threshold within the preset time period, the air conditioner is controlled to perform an anti-freezing operation, and after the anti-freezing operation is completed, the air conditioner continues to be anti-freezing controlled;

[0078] Step S503: If the temperature of the pipeline temperature sensor is greater than the preset temperature threshold within the preset time period, a third attenuation coefficient of the wind speed is calculated according to the startup wind speed and the second real-time wind speed, and the air conditioner is anti-freezing controlled according to the third attenuation coefficient.

[0079] Specifically, Figure 6 As shown, the step S503 includes: steps S601 to S604.

[0080] Step S601, comparing the third attenuation coefficient with a preset third constant and a fourth constant; wherein the third constant is smaller than the fourth constant;

[0081] Step S602: If the third attenuation coefficient is less than the third constant, controlling the air conditioner to perform an anti-freezing operation;

[0082] Step S603: if the third attenuation coefficient is greater than or equal to the third constant and less than the fourth constant, the compressor operating frequency of the air conditioner is reduced, and the anti-freeze control of the air conditioner is continued;

[0083] Step S604: If the third attenuation coefficient is greater than or equal to the fourth constant, the operating time of the air conditioner is obtained, and when the operating time reaches a preset time threshold, the air conditioner is controlled to perform a self-cleaning operation; or when the operating time does not reach the preset time threshold, the air conditioner is controlled to continue running.

[0084] In this embodiment, when the air conditioner completes the cleaning operation and continues to run for a period of time (for example, the running time t3, t3 can be 30-60 minutes), the latest wind speed S3 of the air conditioner (that is, the second real-time wind speed) is recorded, and the temperature T of the evaporator pipe temperature sensor is obtained at the same time. 内 Then, the air conditioner can be anti-freezing controlled by combining the second real-time wind speed, the start-up wind speed and the temperature of the pipe temperature sensor. Figure 8 If T is detected within a continuous period of time (e.g. 3 minutes), 内 ≤T 防冻结停机温度 , T 防冻结停机温度 Generally, it is -1℃, which means the evaporator temperature is low and there is a risk of frost and ice. At this time, the unit executes the anti-freeze logic. The anti-freeze logic is: T 内 When the shutdown temperature is reached, the unit enters the anti-freezing protection mode. The internal and external units of the unit are shut down. After the shutdown, the internal pipe temperature rises. When the anti-freezing condition is met: T 内 >T 防冻结恢复温度 , T 防冻结恢复温度 Generally, it is 10℃, and the unit is started and operated according to the original settings. Then, the air conditioner is controlled to prevent freezing according to the second real-time wind speed, the starting wind speed and the temperature of the pipeline temperature sensor.

[0085] If T is not detected within a continuous period of time (e.g. 3 minutes), 内 ≤T 防冻结停机温度 , then further calculate the third attenuation coefficient γ according to the starting wind speed S' and the second actual wind speed S3: γ = S3 / S'. And determine the relationship between the third attenuation coefficient γ and the preset third constant b and fourth constant c:

[0086] When the third attenuation coefficient γ is less than the constant b, it means that the air velocity attenuation is large at this time, which may be due to uneven liquid distribution. Part of the evaporator flow path has been severely frosted but the temperature sensor cannot detect it. At this time, the anti-freeze logic needs to be executed in time to prevent the evaporator from being partially frozen. After the anti-freeze logic is executed, the air conditioner continues to be anti-freeze controlled according to the second real-time wind speed, the starting wind speed and the temperature of the pipeline temperature sensor.

[0087] When constant b≤third attenuation coefficient γ<constant c, it means that the outlet wind speed is moderately attenuated. It may be that the compressor is running at a high frequency and the evaporator temperature is low, resulting in excessive condensation on the surface and attenuation of wind speed. At this time, the compressor frequency needs to be reduced to avoid excessive condensation that cannot be discharged in time, dripping from the air outlet or even water droplets blowing out, affecting user experience. Then continue to perform anti-freeze control on the air conditioner based on the second real-time wind speed, startup wind speed and pipeline temperature sensor package temperature.

[0088] When the third attenuation coefficient γ≥ constant c, it means that the wind speed attenuation is small and the unit is operating normally. At the same time, the cumulative running time of the air conditioning unit without automatic cleaning is detected:

[0089] If the cumulative operation time of the air conditioner unit is ≥ 30 days, the air conditioner unit will be controlled to directly enter the automatic cleaning mode to avoid excessive accumulation of stains on the evaporator, which will result in ineffective cleaning. After the self-cleaning logic is executed, the air conditioner unit will be controlled to continue normal operation according to the user settings.

[0090] If the accumulated operation time of the air conditioner unit is less than 30 days, the air conditioner unit is controlled to continue to operate normally. Then, the air conditioner is continuously controlled to prevent freezing according to the second real-time wind speed, the start-up wind speed and the temperature of the pipeline temperature sensing package.

[0091] In actual application scenarios, the above constants a, b, c, etc. can be determined according to the 9K cooling capacity unit, generally as follows: constant a = 0.75, b = 0.8, c = 0.9. When the air-conditioning system is large and has sufficient cooling capacity, the values ​​of constants b and c can be lowered to avoid frequent triggering of frequency reduction or anti-freezing, so as to facilitate the normal performance of the air-conditioning unit; when the user's installation environment is more prone to dirt, the value of constant a can be lowered to avoid frequent entry into the self-cleaning logic, which affects the user's comfort. Similarly, considering the reliability of air-conditioning operation, the above parameters can also be appropriately increased so that the air-conditioning can enter protection in time. Designers can match the unit configuration status with the user's usage environment and dynamically set the adjustment parameters.

[0092] Fig. 9 A schematic block diagram of an air conditioner use control device 900 provided in an embodiment of the present invention, the device 900 includes:

[0093] A first acquisition unit 901 is used to acquire a control instruction sent by a user, control the operation of the air conditioner according to the control instruction, and determine a theoretical wind speed of the air conditioner according to the control instruction;

[0094] A first control unit 902 is used to obtain a first real-time wind speed during the operation of the air conditioner, perform cleaning control on the air conditioner based on the theoretical wind speed and the first real-time wind speed, and set a start-up wind speed after cleaning control based on the first real-time wind speed;

[0095] A second acquisition unit 903 is used to control the air conditioner to run at the startup wind speed after completing the cleaning control, and continue to acquire the second real-time wind speed of the air conditioner and the temperature of the pipe temperature sensing package of the evaporator of the air conditioner;

[0096] The second control unit 904 is used to perform anti-freezing control on the air conditioner based on the startup wind speed, the second real-time wind speed and the temperature of the pipeline temperature sensing package.

[0097] In one embodiment, if Fig.10 As shown, the air conditioner use control device 900 also includes:

[0098] The first recording unit 1001 is used to control the indoor unit of the air conditioner to start up when the air conditioner is installed and turned on for the first time, and to control the air guide plate of the air conditioner to be in the first position, and to record the wind speed data corresponding to all speed gears of the indoor unit of the air conditioner when the air guide plate is in the first position;

[0099] The second recording unit 1002 is used to control the air guide plate of the air conditioner to be adjusted to a second position, and to record the wind speed data corresponding to all speed gears of the indoor unit of the air conditioner when the air guide plate is in the second position;

[0100] The third recording unit 1003 is used to record the wind speed data corresponding to all speed gears of the indoor unit when the air guide plate of the air conditioner is in different positions in the same manner until the wind speed data corresponding to all speed gears of the indoor unit are recorded;

[0101] The data setting unit 1004 is used to set and store the wind speed data corresponding to all speed gears of the indoor unit when the air guide plate of the air conditioner is in different positions as original data; wherein the theoretical wind speed is obtained through the original data.

[0102] In one embodiment, if Fig.11 As shown, the first control unit 902 includes:

[0103] A first calculation unit 1101 is used to calculate a first attenuation coefficient related to wind speed according to the theoretical wind speed and the first real-time wind speed;

[0104] A first comparing unit 1102, configured to compare the first attenuation coefficient with a preset first constant;

[0105] A first operation unit 1103 is configured to set the first real-time wind speed as the start-up wind speed and control the air conditioner to continue to operate at the start-up wind speed when the first attenuation coefficient is greater than or equal to a preset first constant;

[0106] A state determination unit 1104, configured to determine whether the air conditioner is in the first power-on state after power-on and power-off when the first attenuation coefficient is less than a preset first constant;

[0107] The self-cleaning unit 1105 is used to control the air conditioner to perform a self-cleaning operation if it is determined that the air conditioner is in the first power-on state after power-on and power-off, and to control the air conditioner to start running according to the control instruction sent by the user after the self-cleaning operation is completed;

[0108] The second operation unit 1106 is used to control the air conditioner to start running according to the control instruction sent by the user if it is determined that the air conditioner is not in the first start-up state after power on and off.

[0109] In one embodiment, the self-cleaning unit 1105 includes:

[0110] A condensation unit, used to control the air conditioner to operate in a cooling mode to produce condensation water that can combine with dust on the surface of the evaporator;

[0111] A frosting unit, used to lower the surface temperature of the evaporator to frost the condensed water;

[0112] The defrosting unit is used to increase the surface temperature of the evaporator after frosting is completed so as to defrost the frosted condensed water.

[0113] In one embodiment, if Fig.12 As shown, the air conditioner use control device 900 also includes:

[0114] The wind speed acquisition unit 1201 is used to acquire a third real-time wind speed of the air conditioner after the air conditioner has been running for a certain period of time;

[0115] A second calculation unit 1202 is used to calculate a second attenuation coefficient related to wind speed according to the theoretical wind speed and the third real-time wind speed;

[0116] A second comparing unit 1203, configured to compare the second attenuation coefficient with a preset second constant;

[0117] A third operation unit 1204 is configured to set the third real-time wind speed as the start-up wind speed and control the air conditioner to continue to operate at the start-up wind speed when the second attenuation coefficient is greater than or equal to the second constant;

[0118] The fourth operating unit 1205 is used to issue a cleaning alarm when the second attenuation coefficient is less than the second constant, and set the third real-time wind speed as the starting wind speed after receiving the cleaning feedback sent by the user, so that the air conditioner continues to operate at the starting wind speed.

[0119] In one embodiment, if Fig.13 As shown, the second control unit 904 includes:

[0120] The third comparison unit 1301 is used to compare the temperature of the pipeline temperature sensing package with a preset temperature threshold within a preset time period;

[0121] The anti-freezing unit 1302 is used to control the air conditioner to perform an anti-freezing operation if the temperature of the pipeline temperature sensing package is continuously less than or equal to a preset temperature threshold within a preset time period, and continue to perform anti-freezing control on the air conditioner after the anti-freezing operation is completed;

[0122] The third calculation unit 1303 is used to calculate a third attenuation coefficient about the wind speed according to the starting wind speed and the second real-time wind speed if the temperature of the pipeline temperature sensor is greater than a preset temperature threshold within a preset time period, and to perform anti-freeze control on the air conditioner according to the third attenuation coefficient.

[0123] In one embodiment, if Fig.14 As shown, the third calculation unit 1303 includes:

[0124] The fourth comparison unit 1401 is used to compare the third attenuation coefficient with a preset third constant and a fourth constant; wherein the third constant is smaller than the fourth constant;

[0125] A third control unit 1402, configured to control the air conditioner to perform an anti-freezing operation if the third attenuation coefficient is less than the third constant;

[0126] a fourth control unit 1403, configured to reduce the compressor operating frequency of the air conditioner and continue to perform anti-freeze control on the air conditioner if the third attenuation coefficient is greater than or equal to the third constant and less than the fourth constant;

[0127] The fifth control unit 1404 is used to obtain the operating time of the air conditioner if the third attenuation coefficient is greater than or equal to the fourth constant, and control the air conditioner to perform a self-cleaning operation when the operating time reaches a preset time threshold; or control the air conditioner to continue running when the operating time does not reach the preset time threshold.

[0128] Since the embodiments of the apparatus part correspond to the embodiments of the method part, please refer to the description of the embodiments of the method part for the embodiments of the apparatus part, which will not be repeated here.

[0129] The embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed, the steps provided in the above embodiment can be implemented. The storage medium may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0130] The embodiment of the present invention also provides an air conditioner, which may include a memory and a processor, wherein a computer program is stored in the memory, and when the processor calls the computer program in the memory, the steps provided in the above embodiment may be implemented. Of course, the air conditioner may also include various network interfaces, power supplies and other components.

[0131] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0132] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A method for controlling the use of an air conditioner, characterized in that: include: Acquire a control instruction sent by a user, control the operation of the air conditioner according to the control instruction, and determine a theoretical wind speed of the air conditioner according to the control instruction; Acquiring a first real-time wind speed during the operation of the air conditioner, performing cleaning control on the air conditioner based on the theoretical wind speed and the first real-time wind speed, and setting a start-up wind speed after the cleaning control based on the first real-time wind speed; After the cleaning control is completed, the air conditioner is controlled to run at the startup wind speed, and the second real-time wind speed of the air conditioner and the temperature of the pipe temperature sensing package of the evaporator of the air conditioner are continuously obtained; The air conditioner is subjected to anti-freezing control based on the startup wind speed, the second real-time wind speed and the temperature of the pipeline temperature sensing package.

2. The air conditioner use control method according to claim 1, characterized in that: Before the step of determining the theoretical wind speed of the air conditioner according to the control instruction, the method includes: When the air conditioner is installed and turned on for the first time, the indoor unit of the air conditioner is controlled to start, the air guide plate of the air conditioner is controlled to be in the first position, and the wind speed data corresponding to all speed gears of the indoor unit of the air conditioner when the air guide plate is in the first position are recorded; Controlling the air guide plate of the air conditioner to be adjusted to a second position, and recording wind speed data corresponding to all speed gears of the indoor unit of the air conditioner when the air guide plate is in the second position; The same process is repeated until wind speed data corresponding to all speed gears of the indoor unit when the air guide plate of the air conditioner is at different positions is recorded; When the air guide plate of the air conditioner is at different positions, the wind speed data corresponding to all speed gears of the indoor unit are set as original data and stored; wherein the theoretical wind speed is obtained through the original data.

3. The air conditioner use control method according to claim 1, characterized in that: The obtaining of the first real-time wind speed during the operation of the air conditioner, performing cleaning control on the air conditioner based on the theoretical wind speed and the first real-time wind speed, and setting a start-up wind speed after the cleaning control based on the first real-time wind speed, comprises: Calculating a first attenuation coefficient related to wind speed according to the theoretical wind speed and the first real-time wind speed; Comparing the first attenuation coefficient with a preset first constant; When the first attenuation coefficient is greater than or equal to a preset first constant, the first real-time wind speed is set as the start-up wind speed, and the air conditioner is controlled to continue to operate at the start-up wind speed; When the first attenuation coefficient is less than a preset first constant, determining whether the air conditioner is in the first power-on state after power-on and power-off; If it is determined that the air conditioner is in the first power-on state after power on and off, the air conditioner is controlled to perform a self-cleaning operation, and after the self-cleaning operation is completed, the air conditioner is controlled to start running according to a control instruction sent by a user; If it is determined that the air conditioner is not in the first start-up state after power on and off, the air conditioner is controlled to start running according to the control instruction sent by the user.

4. The air conditioner use control method according to claim 3, characterized in that: If it is determined that the air conditioner is in the first power-on state after power on and off, the air conditioner is controlled to perform a self-cleaning operation, including: Control the air conditioner to operate in cooling mode to produce condensation water that can combine with dust on the evaporator surface; Lowering the surface temperature of the evaporator to cause condensation water to frost; After frosting is completed, the surface temperature of the evaporator is increased to defrost the frosted condensed water.

5. The air conditioner use control method according to claim 3, characterized in that: If it is determined that the air conditioner is not in the first power-on state after power on and off, after the step of controlling the air conditioner to start running according to the control instruction sent by the user, the method further comprises: After the air conditioner has been running for a certain period of time, obtaining a third real-time wind speed of the air conditioner; Calculating a second attenuation coefficient related to wind speed according to the theoretical wind speed and the third real-time wind speed; comparing the second attenuation coefficient with a preset second constant; When the second attenuation coefficient is greater than or equal to the second constant, setting the third real-time wind speed as the startup wind speed, and controlling the air conditioner to continue running at the startup wind speed; When the second attenuation coefficient is less than the second constant, a cleaning alarm is issued, and after receiving cleaning feedback sent by the user, the third real-time wind speed is set as the startup wind speed so that the air conditioner continues to operate at the startup wind speed.

6. The air conditioner use control method according to claim 1, characterized in that: The anti-freezing control of the air conditioner based on the startup wind speed, the second real-time wind speed and the temperature of the pipeline temperature sensing package includes: Comparing the temperature of the pipeline temperature sensor with a preset temperature threshold within a preset time period; If the temperature of the pipeline temperature sensing package is continuously less than or equal to the preset temperature threshold within the preset time period, the air conditioner is controlled to perform an anti-freezing operation, and after the anti-freezing operation is completed, the air conditioner continues to be anti-freezing controlled; If the temperature of the pipeline temperature sensor is greater than a preset temperature threshold within a preset time period, a third attenuation coefficient of the wind speed is calculated based on the startup wind speed and the second real-time wind speed, and the air conditioner is anti-freezing controlled based on the third attenuation coefficient.

7. The air conditioner use control method according to claim 6, characterized in that: The anti-freezing control of the air conditioner according to the third attenuation coefficient comprises: Comparing the third attenuation coefficient with a preset third constant and a fourth constant; wherein the third constant is smaller than the fourth constant; If the third attenuation coefficient is less than the third constant, controlling the air conditioner to perform an anti-freezing operation; If the third attenuation coefficient is greater than or equal to the third constant and less than the fourth constant, the operating frequency of the compressor of the air conditioner is reduced, and the anti-freezing control of the air conditioner is continued; If the third attenuation coefficient is greater than or equal to the fourth constant, the operating time of the air conditioner is obtained, and when the operating time reaches a preset time threshold, the air conditioner is controlled to perform a self-cleaning operation; or when the operating time does not reach the preset time threshold, the air conditioner is controlled to continue running.

8. An air conditioner control device, characterized in that: include: A first acquisition unit, configured to acquire a control instruction sent by a user, control the operation of the air conditioner according to the control instruction, and determine a theoretical wind speed of the air conditioner according to the control instruction; a first control unit, configured to obtain a first real-time wind speed during operation of the air conditioner, perform cleaning control on the air conditioner based on the theoretical wind speed and the first real-time wind speed, and set a start-up wind speed after cleaning control based on the first real-time wind speed; A second acquisition unit is used to control the air conditioner to operate according to the startup wind speed after completing the cleaning control, and continue to acquire the second real-time wind speed of the air conditioner and the temperature of the pipe temperature sensing package of the evaporator of the air conditioner; The second control unit is used to perform anti-freezing control on the air conditioner based on the startup wind speed, the second real-time wind speed and the temperature of the pipeline temperature sensing package.

9. An air conditioner, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the air conditioner use control method as claimed in any one of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the air conditioner use control method according to any one of claims 1 to 7 is implemented.

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