Dirt detection method and control method of air conditioner and air conditioner

Abstract

The embodiment of the invention discloses a smudginess detection method and control method of an air conditioner and the air conditioner, and belongs to the field of air conditioners. The dirt detection method for the air conditioner comprises the steps that the indoor environment temperature of a room where the air conditioner acts and set parameters of the air conditioner are obtained, and when the indoor environment temperature is lower than a first target temperature, target parameters of the air conditioner are obtained; and a detection result is generated according to the matching condition of the target parameters and historical operation parameters of the air conditioner. The embodiment of the invention has the technical effects that the smudginess of the air conditioner can be detected, the current smudginess condition of the air conditioner can be conveniently known through a detection result, the smudginess in the air conditioner can be timely treated or the air conditioner is prevented from blowing airflow with peculiar smell into a room, and the use experience of the air conditioner is improved.

Description

Technical Field

[0001] The present application relates to the field of air conditioning, and more specifically, to a dirt detection method and control method for an air conditioner, and an air conditioner. Background Art

[0002] Air conditioners are indispensable electrical appliances in people's living environment. They can adjust indoor temperature and bring people a comfortable living experience. However, during the cooling process, condensation water will be produced inside the air conditioner. After a long time, the condensation water will easily adhere to dust and breed bacteria, resulting in low cleanliness and odor of air flow blown into the room when the air conditioner is running. However, current air conditioners fail to detect the dirt inside the air conditioner in time. Summary of the invention

[0003] The embodiments of the present application provide a method for detecting dirtiness of an air conditioner, a method for controlling the air conditioner, and the air conditioner, so as to at least solve the technical problem of failing to detect dirtiness of the air conditioner in a timely manner.

[0004] According to a first aspect of an embodiment of the present application, a method for detecting dirtiness of an air conditioner is provided, the method comprising:

[0005] Acquiring the indoor ambient temperature of the room where the air conditioner is operated and the setting parameters of the air conditioner;

[0006] When the indoor environment temperature is lower than a first target temperature, acquiring a target parameter of the air conditioner, wherein the target parameter includes an outdoor environment parameter, an operating parameter of the air conditioner and the setting parameter, and the first target temperature is determined according to the setting parameter;

[0007] A detection result is generated according to a matching condition between the target parameter and the historical operating parameter of the air conditioner.

[0008] By adopting this embodiment, when the air conditioner needs cooling, the detection results are generated according to the operating parameters, outdoor environmental parameters, set parameters and historical operating parameters to realize the detection of the dirtiness of the air conditioner. It is convenient to know the current dirtiness of the air conditioner through the detection results, which helps to deal with the dirt in the air conditioner in time or avoid the air conditioner blowing odorous airflow into the room, thereby improving the user experience of the air conditioner.

[0009] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the operating parameters include an opening of an expansion valve located between an indoor heat exchanger and an outdoor heat exchanger in the air conditioner and a frequency of a compressor of the air conditioner;

[0010] The generating of the detection result according to the matching of the target parameter with the historical operating parameter of the air conditioner includes:

[0011] Comparing the historical frequency in the parameter group including the opening degree, outdoor environmental parameters and setting parameters in the historical operating parameters with the frequency;

[0012] If the frequency is not less than the historical frequency, a detection result indicating the presence of dirt is generated;

[0013] If the frequency is less than the historical frequency, a non-contaminated detection result is generated.

[0014] With this implementation, when there is dirt inside the air conditioner, it will affect the function of the compressor. Therefore, by comparing the frequency with the historical frequency, it can be determined whether the function of the compressor has declined, thereby inferring the test result, thereby improving the accuracy of the test result.

[0015] In combination with the first aspect, in an optional implementation of the embodiment of the present application, the operating parameters further include an external fan gear and an internal fan gear of the air conditioner, the outdoor environment parameters include an outdoor environment temperature, and the setting parameters include a setting temperature;

[0016] The generating of the detection result according to the matching of the target parameter with the historical operating parameter of the air conditioner includes:

[0017] Comparing the historical frequency in the parameter group including the opening, the external fan gear, the internal fan gear, the outdoor ambient temperature and the set temperature in the historical operating parameters with the frequency;

[0018] If the frequency is not less than the historical frequency, a detection result indicating the presence of dirt is generated;

[0019] If the frequency is less than the historical frequency, a non-contaminated detection result is generated.

[0020] By adopting this implementation method, in addition to the opening degree and frequency, the external fan gear and the internal fan gear are also taken into consideration, so that when determining the historical frequency, it is possible to more accurately find a parameter group that is more similar to the current air-conditioning operation conditions from the historical operating parameters, thereby obtaining a historical frequency that is more suitable for the current air-conditioning operation conditions, which helps to improve the accuracy of the detection results.

[0021] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, the method further includes:

[0022] Before determining whether the indoor ambient temperature is lower than the first target temperature, the compressor of the air conditioner is controlled to start before the fan of the air conditioner, wherein the fan includes an indoor fan of the air conditioner.

[0023] With this implementation, the compressor starts before the fan, causing the temperature inside the air conditioner to drop first, and then the fan blows the air into the room. Since the temperature drop is conducive to reducing odor and inhibiting bacterial growth, the air flow blown into the room is less likely to have a strong odor, thereby improving the user experience of the air conditioner.

[0024] In combination with the first aspect, in an optional implementation of the embodiment of the present application, controlling the compressor of the air conditioner to start before the fan of the air conditioner includes:

[0025] The fan is controlled to start after a preset target time of starting the compressor, or the fan is controlled to start when the internal temperature of the air conditioner reaches a preset antibacterial temperature.

[0026] By adopting this implementation method, by presetting the target time or the antibacterial temperature, it is helpful to lower the temperature inside the air conditioner to a certain level before the fan starts, thereby reducing the generation of odor and improving the user experience of the air conditioner.

[0027] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, the method further includes:

[0028] In response to a cooling signal of the air conditioner, acquiring a cumulative running time of the air conditioner;

[0029] If the accumulated running time exceeds a preset time threshold, the step of obtaining the indoor ambient temperature of the room where the air conditioner is applied and the setting parameters of the air conditioner is performed.

[0030] With this implementation, when generating the test results, the accumulated running time and the indoor ambient temperature are also taken into consideration, which is beneficial to improving the accuracy of the test results.

[0031] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, the method further includes:

[0032] If the accumulated running time does not exceed the time threshold, the air conditioner is controlled according to a preset control logic and when the indoor ambient temperature is lower than the first target temperature, the current running parameters of the air conditioner and the current outdoor ambient parameters are obtained;

[0033] The current operating parameters, the current outdoor environment parameters and the set temperature are stored as a parameter group in the historical operating parameters.

[0034] Using this implementation method, the cumulative operating time does not exceed the time threshold, which proves that there is not much dirt inside the air conditioner. Therefore, the air conditioner operation is controlled according to the preset control logic, and the operating parameters and other parameters are obtained into the historical operating parameters, so that the historical operating parameters can be updated, thereby improving the accuracy of the detection results of subsequent dirt detection.

[0035] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, the method further includes:

[0036] The first target temperature is obtained by subtracting a preset first correction value from the set temperature of the air conditioner.

[0037] By adopting this implementation, the set temperature is corrected to obtain the first target temperature, which is conducive to compensating for the temperature detection error of the air conditioner itself, thereby improving the cooling effect of the air conditioner and the accuracy of the detection result.

[0038] In combination with the first aspect, in an optional implementation manner of the embodiment of the present application, the method further includes:

[0039] After the accumulated running time exceeds the time threshold and the indoor ambient temperature is lower than the first target temperature, determining whether the indoor ambient temperature is higher than a second target temperature;

[0040] If yes, then the step of obtaining the operating parameters of the air conditioner and the outdoor environment parameters is performed.

[0041] otherwise, reacquiring the indoor ambient temperature and determining whether the reacquired indoor ambient temperature is between the first target temperature and the second target temperature;

[0042] The second target temperature is determined according to setting parameters of the air conditioner and is lower than the first target temperature.

[0043] By adopting this implementation, dirt is detected only when the indoor environment temperature is between the first target temperature and the second target temperature, which is conducive to improving the accuracy of the detection result.

[0044] According to a second aspect of an embodiment of the present application, an air conditioning control method is provided, to which the above-mentioned dirt detection method is applied.

[0045] In conjunction with the second aspect, in an optional implementation of the embodiment of the present application, after generating the detection result, the air conditioning control method further includes:

[0046] Re-obtain the indoor ambient temperature;

[0047] When the re-acquired indoor environment temperature is not greater than the second target temperature, the air conditioner is controlled to shut down.

[0048] In conjunction with the second aspect, in an optional implementation of the embodiment of the present application, the air conditioning control method further includes:

[0049] If the air conditioner is controlled according to a preset control logic and after the indoor ambient temperature is lower than the first target temperature, the air conditioner is controlled to shut down.

[0050] According to a third aspect of an embodiment of the present application, an air conditioner is provided, which adopts the above-mentioned dirt detection method or the above-mentioned air conditioner control method.

[0051] The technical effects obtained by the above-mentioned second to third aspects are similar to the technical effects obtained by the corresponding technical means in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a flow chart of a method for detecting dirtiness of an air conditioner provided in an embodiment of the present application;

[0053] Figure 2 It is a structural schematic diagram of an air conditioner provided in an embodiment of the present application;

[0054] Figure 3 It is a flow chart of a specific application of an air conditioning control method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0055] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0056] It should be understood that the "plurality" mentioned in this article refers to two or more. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second" and so on are used to distinguish between the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first", "second" and so on do not limit the quantity and execution order, and the words "first", "second" and so on do not limit certain different

[0057] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, product, or apparatus.

[0058] As one of the main components of the air conditioner, the evaporator exchanges heat with the air and then uses a fan to blow the heated or cooled air into the room. Since condensation water is produced during refrigeration, a water tray and a drain port are generally designed under the evaporator to discharge the condensed water. The evaporator is easily contaminated by dust, bacteria, etc. in the air during air circulation. Over time, dirt will accumulate in the evaporator and the water tray. Dust and other debris will breed bacteria in a humid environment and produce odors, causing an unpleasant odor when the unit is turned on, affecting customer use. At the same time, impurities such as dust attached to the surface of the evaporator will cause the unit's energy efficiency to decrease and affect the unit's performance.

[0059] Therefore, the embodiments of the present application provide a dirt detection method and a control method of an air conditioner, and an air conditioner to solve at least one of the following problems:

[0060] 1. The user does not clean the evaporator and water tray regularly according to the instructions.

[0061] 2. There will inevitably be varying degrees of dirt in the evaporator and water tray, which will easily produce sour and smelly odors when the machine is turned on, affecting customer use.

[0062] 3. Impurities on the surface of the evaporator affect the normal use of the unit, resulting in a decrease in the energy efficiency of the unit and affecting the performance of the unit.

[0063] By comparing historical data, it can be determined whether the evaporator is dirty and the user can be reminded to clean it. At the same time, the order of starting the fan and compressor can be adjusted, as well as the control of the fan and compressor after the unit meets the load demand. The unit running time can be extended and the indoor humidity can be reduced, thereby avoiding the phenomenon of odor when the unit is just turned on.

[0064] Based on this, a method for detecting dirtiness of an air conditioner provided in an embodiment of the present application is described. Figure 1 The flowchart of the method for detecting dirtiness of an air conditioner is shown, and the method includes the following processing procedures.

[0065] S100: Acquire the indoor ambient temperature of the room where the air conditioner is operated and the setting parameters of the air conditioner.

[0066] In one embodiment, the indoor ambient temperature can be obtained by collecting the temperature through a temperature sensing package provided on the air conditioner, or by means of other temperature sensing devices that can collect the indoor ambient temperature, which is not specifically limited in this embodiment.

[0067] In one embodiment, the setting parameter refers to the target temperature to which the air conditioner adjusts the indoor ambient temperature, which is usually set by the user.

[0068] S102: When the indoor ambient temperature is lower than a first target temperature, obtain a target parameter of the air conditioner.

[0069] The target parameters include outdoor environment parameters, operating parameters of the air conditioner and the setting parameters, and the first target temperature is determined according to the setting parameters.

[0070] In one embodiment, the time threshold is set according to the cleaning requirements of the air conditioner. For example, the time threshold may be 2400 hours or 1000 hours.

[0071] In one embodiment, the first target temperature can be calculated according to the setting parameters, for example, the first target temperature can be obtained by subtracting a preset constant from the setting parameters. The first target temperature is intended to calibrate or modify the setting parameters.

[0072] S104: Generate a detection result according to a matching condition between the target parameter and the historical operating parameters of the air conditioner.

[0073] In one embodiment, the operating parameters refer to parameters affected by dirt, such as the frequency of a compressor, etc. Outdoor environmental parameters include the temperature, humidity, or pollution level of the outdoor environment. The historical operating parameters need to correspond to the operating parameters, outdoor environmental parameters, and setting parameters, that is, the historical operating parameters need to include at least parameters of the same type as the operating parameters, outdoor environmental parameters, and setting parameters, so as to facilitate comparison and determine the matching situation.

[0074] With this embodiment, when the air conditioner needs to cool, the detection result is generated according to the operating parameters, outdoor environmental parameters, setting parameters and historical operating parameters to detect the dirtiness of the air conditioner, so that the current dirtiness of the air conditioner can be known through the detection result, which helps to deal with the dirt inside the air conditioner in time or prevent the air conditioner from blowing odorous air into the room, thereby improving the user experience of the air conditioner. In addition, when generating the detection result, the accumulated operating time and indoor environmental temperature are also taken into account, which is conducive to improving the accuracy of the detection result.

[0075] In a possible embodiment of the present application, the operating parameters include the opening of an expansion valve located between an indoor heat exchanger and an outdoor heat exchanger in the air conditioner and the frequency of a compressor of the air conditioner;

[0076] The generating of the detection result according to the matching of the target parameter with the historical operating parameter of the air conditioner includes:

[0077] Comparing the historical frequency in the parameter group including the opening degree, outdoor environmental parameters and setting parameters in the historical operating parameters with the frequency;

[0078] If the frequency is not less than the historical frequency, a detection result indicating the presence of dirt is generated;

[0079] If the frequency is less than the historical frequency, a non-contaminated detection result is generated.

[0080] In one embodiment, the historical operating parameters include the setting parameters of the air conditioner during the previous operation process and the opening corresponding to the setting parameters, the outdoor environmental parameters and the frequency of the compressor. Therefore, after obtaining the setting parameters of the current user, the historical operating parameters are searched for the historical operating parameters that are the same as the current setting parameters, the current opening, and the current outdoor environmental parameters, and the historical frequency in the historical operating parameters is compared with the current frequency to generate a detection result.

[0081] With this implementation, when there is dirt inside the air conditioner, it will affect the function of the compressor. Therefore, by comparing the frequency with the historical frequency, it can be determined whether the function of the compressor has declined, thereby inferring the test result, thereby improving the accuracy of the test result.

[0082] Optionally, in an implementation of this embodiment, the operating parameters further include an external fan gear and an internal fan gear of the air conditioner, the outdoor environment parameters include an outdoor environment temperature, and the setting parameters include a setting temperature;

[0083] The generating of the detection result according to the matching of the target parameter with the historical operating parameter of the air conditioner includes:

[0084] Comparing the historical frequency in the parameter group including the opening, the external fan gear, the internal fan gear, the outdoor ambient temperature and the set temperature in the historical operating parameters with the frequency;

[0085] If the frequency is not less than the historical frequency, a detection result indicating the presence of dirt is generated;

[0086] If the frequency is less than the historical frequency, a non-contaminated detection result is generated.

[0087] By adopting this implementation method, in addition to the opening degree and frequency, the external fan gear and the internal fan gear are also taken into consideration, so that when determining the historical frequency, it is possible to more accurately find a parameter group that is more similar to the current air-conditioning operation conditions from the historical operating parameters, thereby obtaining a historical frequency that is more suitable for the current air-conditioning operation conditions, which helps to improve the accuracy of the detection results.

[0088] Optionally, in an implementation of this embodiment, the method further includes:

[0089] Before determining whether the indoor ambient temperature is lower than the first target temperature, the compressor of the air conditioner is controlled to start before the fan of the air conditioner, wherein the fan includes an indoor fan of the air conditioner.

[0090] In one embodiment, the compressor and the fan can be started at intervals by means of a preset time threshold, that is, after the compressor is started, the fan is started after waiting for the time threshold.

[0091] With this implementation, the compressor starts before the fan, causing the temperature inside the air conditioner to drop first, and then the fan blows the air into the room. Since the temperature drop is conducive to reducing odor and inhibiting bacterial growth, the air flow blown into the room is less likely to have a strong odor, thereby improving the user experience of the air conditioner.

[0092] Optionally, in an implementation of this embodiment, controlling the compressor of the air conditioner to start before the fan of the air conditioner includes:

[0093] The fan is controlled to start after a preset target time of starting the compressor, or the fan is controlled to start when the internal temperature of the air conditioner reaches a preset antibacterial temperature.

[0094] The target time can be set according to actual needs, aiming to reduce the internal temperature of the air conditioner to the antibacterial temperature. The antibacterial temperature is also set according to the actual situation of the air conditioner. Since the air conditioner is used in different environments and the types of bacteria that are prone to grow are different, the antibacterial temperature is not specifically limited in this embodiment.

[0095] By adopting this implementation method, by presetting the target time or the antibacterial temperature, it is helpful to lower the temperature inside the air conditioner to a certain level before the fan starts, thereby reducing the generation of odor and improving the user experience of the air conditioner.

[0096] Optionally, in an implementation of this embodiment, the method further includes:

[0097] If the accumulated running time does not exceed the time threshold, the air conditioner is controlled according to a preset control logic and when the indoor ambient temperature is lower than the first target temperature, the current running parameters of the air conditioner and the current outdoor ambient parameters are obtained;

[0098] The current operating parameters, the current outdoor environment parameters and the set temperature are stored as a parameter group in the historical operating parameters.

[0099] Among them, the preset control logic refers to controlling the air conditioner for cooling according to a conventional control method. Specifically, the conventional control method controls the operating parameters of the air conditioner's compressor, heat exchanger, fan and other structures according to the cooling temperature set by the user, so that the air conditioner adjusts the indoor temperature to the cooling temperature set by the user. The specific control process can be referred to the existing air conditioning refrigeration method, which will not be repeated in this implementation.

[0100] Using this implementation method, the cumulative operating time does not exceed the time threshold, which proves that there is not much dirt inside the air conditioner. Therefore, the air conditioner operation is controlled according to the preset control logic, and the operating parameters and other parameters are obtained into the historical operating parameters, so that the historical operating parameters can be updated, thereby improving the accuracy of the detection results of subsequent dirt detection.

[0101] Optionally, in an implementation of this embodiment, the method further includes:

[0102] The first target temperature is obtained by subtracting a preset first correction value from the set temperature of the air conditioner.

[0103] In one embodiment, the first correction value is determined according to a temperature detection error of the air conditioner, for example, 2 degrees Celsius.

[0104] By adopting this implementation, the set temperature is corrected to obtain the first target temperature, which is conducive to compensating for the temperature detection error of the air conditioner itself, thereby improving the cooling effect of the air conditioner and the accuracy of the detection result.

[0105] Optionally, in an implementation of this embodiment, the method further includes:

[0106] The method further comprises:

[0107] In response to a cooling signal of the air conditioner, acquiring a cumulative running time of the air conditioner;

[0108] If the accumulated running time exceeds a preset time threshold, the step of obtaining the indoor ambient temperature of the room where the air conditioner is applied and the setting parameters of the air conditioner is performed.

[0109] The cooling signal indicates that the air conditioner is required to perform cooling. It should be noted that when the air conditioner is required to perform cooling, the user or the air conditioner itself will set the cooling temperature to be achieved, that is, the set temperature.

[0110] In one embodiment, the accumulated running time refers to the total running time of the air conditioner after it leaves the factory. In another embodiment, the accumulated running time starts from when the air conditioner is cleaned and is reset to zero when it is cleaned next time.

[0111] With this implementation, when generating the test results, the accumulated running time and the indoor ambient temperature are also taken into consideration, which is beneficial to improving the accuracy of the test results.

[0112] Optionally, in an implementation of this embodiment, the method further includes:

[0113] After the accumulated running time exceeds the time threshold and the indoor ambient temperature is lower than the first target temperature, determining whether the indoor ambient temperature is higher than a second target temperature;

[0114] If yes, then the step of obtaining the operating parameters of the air conditioner and the outdoor environment parameters is performed.

[0115] otherwise, reacquiring the indoor ambient temperature and determining whether the reacquired indoor ambient temperature is between the first target temperature and the second target temperature;

[0116] The second target temperature is determined according to setting parameters of the air conditioner and is lower than the first target temperature.

[0117] By adopting this implementation, dirt is detected only when the indoor environment temperature is between the first target temperature and the second target temperature, which is conducive to improving the accuracy of the detection result.

[0118] An air conditioning control method provided in an embodiment of the present application applies the above-mentioned dirt detection method.

[0119] Optionally, in an implementation of this embodiment, after generating the detection result, the air conditioning control method further includes:

[0120] Re-obtain the indoor ambient temperature;

[0121] When the re-acquired indoor environment temperature is not greater than the second target temperature, the air conditioner is controlled to shut down.

[0122] Optionally, in an implementation of this embodiment, the air conditioning control method further includes:

[0123] If the air conditioner is controlled according to a preset control logic and after the indoor ambient temperature is lower than the first target temperature, the air conditioner is controlled to shut down.

[0124] An air conditioner provided in an embodiment of the present application adopts the above-mentioned dirt detection method or the above-mentioned air conditioner control method.

[0125] In the above-mentioned embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The steps shown in the relevant flow chart can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flow chart, in some cases, the steps shown or described can be executed in an order different from that here. In other words, the order of steps described in the foregoing embodiments is only an example, and it is also within the scope of protection of the embodiments of the present application to reasonably adjust the order of steps based on the content of the embodiments of the present application.

[0126] In a specific implementation of the embodiment of the present application, Figure 2 As shown, the air conditioner includes a compressor, a four-way valve, an outdoor heat exchanger, a gas-liquid separator, a unit control unit, an electronic expansion valve, an indoor heat exchanger, a unit control unit, an indoor fan, an outdoor ambient temperature sensing package and an indoor ambient temperature sensing package, wherein the outdoor ambient temperature sensing package can detect the outdoor ambient temperature, and the indoor ambient temperature sensing package detects the indoor ambient temperature. The unit control unit is connected to the indoor and outdoor fans and the indoor and outdoor ambient temperature sensing packages.

[0127] like Figure 3 As shown, the air conditioning control method includes the following processing steps:

[0128] Before leaving the factory, test the actual situation of the heat pump unit, verify the outdoor ambient temperature TW, user set temperature Tset, outdoor fan gear D1, indoor fan gear D2, and frequency H under the electronic expansion valve opening K of the unit when the unit is shut down without fault in the cooling mode, and establish a data table.

[0129] For example: when the unit is in cooling mode and is shut down without fault, the outdoor ambient temperature is 37°C, the user set temperature is 24°C, the outdoor fan gear is 10, the indoor fan gear is 7, the electronic expansion valve opening is 380B and the frequency is 65Hz... Based on the test data, a data table of the electronic expansion valve opening K, outdoor ambient temperature TW, user set temperature T setting, outdoor fan gear D1, indoor fan gear D2, and frequency H is established, and the data table is built into the unit control unit 8.

[0130] When the unit is powered on and operates in cooling mode, first determine the cumulative operating time of the unit since its installation (if the unit is cleaned, this time can be manually reset to zero) and determine whether the cumulative operating time of the unit t≤t1 is satisfied:

[0131] If the condition is met, the unit will operate according to normal logic control, and then continue to determine whether Tindoor ≤ Tsetting-ΔT1 (ΔT1 is the factory set temperature, the set deviation value is generally 2°C): If the condition is not met, the unit will still operate according to normal logic control, and then continue to detect whether Tindoor ≤ Tsetting-ΔT1 is met; if the condition is met, the unit will shut down, and at the same time record the electronic expansion valve opening K, outdoor ambient temperature Tenvironment, user set temperature Tsetting, frequency H, outdoor fan gear D1, indoor fan gear D2 when the unit is shut down, and update the data table. After that, the unit will be turned on again, and the above process will be repeated to determine the cumulative running time of the unit... until the condition of the cumulative running time t≤t1 of the unit is not met.

[0132] If the condition is not met, the compressor will start first, and after t1 time, the indoor fan will start again, and then continue to judge whether T setting-ΔT1-ΔT2<T indoor ≤T setting-ΔT1. If not, it will run according to the normal control logic and continue to judge whether the condition is met; if the condition is met, the electronic expansion valve opening K, outdoor ambient temperature T environment, user set temperature T setting, outdoor fan gear D2, and indoor fan gear D2 are brought into the data table at this time, and the corresponding frequency H is checked to determine whether the frequency H actual ≥ H-ΔH at this time: If the condition is not met, the unit will shut down normally, and repeat the above process judgment after the unit is turned on; if the condition is met, it is considered that there is dirt on the surface of the evaporator, resulting in poor indoor heat exchange, so the frequency is higher than the frequency in the normal operating state. Remind the user to clean the heat exchanger and the water tray. Until T indoor ≤ T setting-ΔT1-ΔT2 is met, the unit will shut down.

[0133] The sequence of serial numbers or introduction of the embodiments of the present application is for description only and does not represent the superiority or inferiority of the embodiments.

[0134] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0135] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0136] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0137] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access, or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)). It is worth noting that the computer-readable storage medium mentioned in the embodiment of the present application may be a non-volatile storage medium, in other words, a non-transient storage medium.

[0138] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data for analysis, stored data, displayed data, etc.) and signals involved in the embodiments of this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions. For example, the scene data of the current frame in the three-dimensional virtual scene, the device information of the client, and the scene interaction information involved in the embodiments of this application are all obtained with full authorization.

[0139] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for detecting dirtiness of an air conditioner, characterized in that: The method comprises: Acquiring the indoor ambient temperature of the room where the air conditioner is operated and the setting parameters of the air conditioner; When the indoor environment temperature is lower than a first target temperature, acquiring a target parameter of the air conditioner, wherein the target parameter includes an outdoor environment parameter, an operating parameter of the air conditioner and the setting parameter, and the first target temperature is determined according to the setting parameter; A detection result is generated according to a matching condition between the target parameter and the historical operating parameter of the air conditioner.

2. The method for detecting dirtiness of an air conditioner according to claim 1, characterized in that: The operating parameters include the opening of an expansion valve located between an indoor heat exchanger and an outdoor heat exchanger in the air conditioner and the frequency of a compressor of the air conditioner; The generating of the detection result according to the matching of the target parameter with the historical operating parameter of the air conditioner includes: Comparing the historical frequency in the parameter group including the opening degree, outdoor environmental parameters and setting parameters in the historical operating parameters with the frequency; If the frequency is not less than the historical frequency, a detection result indicating the presence of dirt is generated; If the frequency is less than the historical frequency, a non-contaminated detection result is generated.

3. The method for detecting dirtiness of an air conditioner according to claim 2, characterized in that: The operating parameters also include the external fan gear and the internal fan gear of the air conditioner, the outdoor environment parameters include the outdoor environment temperature, and the setting parameters include the setting temperature; The generating of the detection result according to the matching of the target parameter with the historical operating parameter of the air conditioner includes: Comparing the historical frequency in the parameter group including the opening, the external fan gear, the internal fan gear, the outdoor ambient temperature and the set temperature in the historical operating parameters with the frequency; If the frequency is not less than the historical frequency, a detection result indicating the presence of dirt is generated; If the frequency is less than the historical frequency, a non-contaminated detection result is generated.

4. The method for detecting contamination of an air conditioner according to claim 1, characterized in that: The method further comprises: Before determining whether the indoor ambient temperature is lower than the first target temperature, the compressor of the air conditioner is controlled to start before the fan of the air conditioner, wherein the fan includes an indoor fan of the air conditioner.

5. The method for detecting contamination of an air conditioner according to claim 4, characterized in that: The step of controlling the compressor of the air conditioner to start before the fan of the air conditioner includes: The fan is controlled to start after a preset target time of starting the compressor, or the fan is controlled to start when the internal temperature of the air conditioner reaches a preset antibacterial temperature.

6. The method for detecting dirtiness of an air conditioner according to claim 1, characterized in that: The method further comprises: In response to a cooling signal of the air conditioner, acquiring a cumulative running time of the air conditioner; If the accumulated running time exceeds a preset time threshold, the step of obtaining the indoor ambient temperature of the room where the air conditioner is applied and the setting parameters of the air conditioner is performed.

7. The method for detecting contamination of an air conditioner according to claim 6, characterized in that: The method further comprises: If the accumulated running time does not exceed the time threshold, the air conditioner is controlled according to a preset control logic and when the indoor ambient temperature is lower than the first target temperature, the current running parameters of the air conditioner and the current outdoor ambient parameters are obtained; The current operating parameters, the current outdoor environment parameters and the set temperature are stored as a parameter group in the historical operating parameters.

8. The method for detecting contamination of an air conditioner according to claim 7, characterized in that: The method further comprises: The first target temperature is obtained by subtracting a preset first correction value from the set temperature of the air conditioner.

9. The method for detecting dirtiness of an air conditioner according to claim 6, characterized in that: The method further comprises: After the accumulated running time exceeds the time threshold and the indoor ambient temperature is lower than the first target temperature, determining whether the indoor ambient temperature is higher than a second target temperature; If yes, then the step of obtaining the operating parameters of the air conditioner and the outdoor environment parameters is performed. otherwise, reacquiring the indoor ambient temperature and determining whether the reacquired indoor ambient temperature is between the first target temperature and the second target temperature; The second target temperature is determined according to setting parameters of the air conditioner and is lower than the first target temperature.

10. An air conditioning control method, characterized in that: The dirt detection method according to any one of claims 1 to 9 is applied.

11. The air conditioning control method according to claim 10, characterized in that: After generating the detection result, the air conditioning control method further includes: Re-obtain the indoor ambient temperature; When the re-acquired indoor environment temperature is not greater than the second target temperature, the air conditioner is controlled to shut down.

12. The air conditioning control method according to claim 10, characterized in that: The air conditioning control method further includes: If the air conditioner is controlled according to a preset control logic and after the indoor ambient temperature is lower than the first target temperature, the air conditioner is controlled to shut down.

13. An air conditioner, characterized in that: The dirt detection method described in any one of claims 1 to 9 or the air conditioning control method described in any one of claims 10 to 12 is adopted.

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