Method and device for determining dirt blocking rate of air conditioner filter screen, air conditioner

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for determining the dirty plugging rate of an air conditioner filter screen, which comprises the following steps: in the case that the air conditioner is running stably, the air outlet volume of an indoor unit, the stable running current of an outdoor unit fan and the fan rotating speed of the outdoor unit are obtained; the length of the air pipe of the air conditioner is obtained; a target calculation formula is determined according to the fan rotating speed of the outdoor unit and the length of the air pipe; and the current dirty plugging rate of the filter screen is calculated according to the target calculation formula based on the stable running current and the air outlet volume of the indoor unit. In the process of determining the current dirty plugging rate of the filter screen of the air conditioner, whether the air conditioner is connected with an air pipe and the length of the air pipe are considered. The dirty plugging condition of the filter screen of the air conditioner connected with the air pipe is determined. The application further discloses a device for determining the dirty plugging rate of the air conditioner filter screen and an air conditioner.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a method and apparatus for determining the clogging rate of an air conditioner filter, and an air conditioner. Background Technology

[0002] After prolonged use, air conditioner filters easily accumulate dust, leading to decreased performance and increased energy consumption. Currently, most air conditioners on the market determine filter clogging based on the length of time the unit has been running, prompting users to clean the filter. However, this method is inaccurate and often fails to accurately reflect the true extent of filter clogging.

[0003] To address the aforementioned issues, a method for indicating the condition of a filter screen is provided in related technologies. The method includes: acquiring the rotational speed of the internal fan and the actual air pressure in the air inlet duct; acquiring the ideal air pressure corresponding to the rotational speed of the internal fan; and outputting a prompt message if the actual air pressure in the air inlet duct is lower than the ideal air pressure. The prompt message is used to alert the user to the filter screen's clogging status. Acquiring the ideal air pressure corresponding to the rotational speed of the internal fan includes: analyzing the rotational speed of the internal fan using a first model to obtain the ideal air pressure corresponding to the rotational speed. The first model is trained using multiple sets of data through machine learning, and each set of data includes: the rotational speed and the corresponding ideal air pressure.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] The relevant technology determines and indicates the clogging status of the air conditioner filter based on the difference between the actual air pressure and the ideal air pressure at the same fan speed. However, since the air pressure change is not significant for air conditioners connected to ducts, the solution of the relevant technology is not applicable to determining the clogging status of the filter of air conditioners connected to ducts.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a method and apparatus for determining the clogging rate of an air conditioner filter, and an air conditioner that can be used to determine the clogging status of an air conditioner filter that is not connected to a duct, as well as the clogging status of an air conditioner filter that is connected to a duct.

[0009] In some embodiments, the method for determining the filter clogging rate of an air conditioner includes: acquiring the air volume of the indoor unit, the stable operating current of the outdoor unit fan, and the fan speed of the outdoor unit while the air conditioner is operating stably; acquiring the duct length of the air conditioner; determining a target calculation formula based on the fan speed of the outdoor unit and the duct length; and calculating the current clogging rate of the filter according to the target calculation formula based on the stable operating current and the air volume of the indoor unit.

[0010] Optionally, the target calculation formula is determined based on the fan speed and duct length of the outdoor unit, including: selecting multiple sets of formula coefficients corresponding to the duct length from the coefficient database based on the first mapping relationship; selecting the target formula coefficient corresponding to the fan speed from the multiple sets of formula coefficients based on the second mapping relationship; and determining the target calculation formula based on the target formula coefficient.

[0011] Optionally, the target formula coefficients include a first coefficient, a second coefficient, a third coefficient, a fourth coefficient, and a fifth coefficient, and the target calculation formula is shown below:

[0012]

[0013] Where K is the current dirt and clogging rate of the filter, I1 is the stable operating current of the outdoor unit fan, Q is the air volume of the indoor unit, k1 is the first coefficient, k2 is the second coefficient, k3 is the third coefficient, k4 is the fourth coefficient, and k5 is the fifth coefficient.

[0014] Optionally, obtaining the duct length of the air conditioner includes: controlling the outdoor unit fan to operate at the rated air volume when the air conditioner is initially powered on; obtaining the initial operating current of the outdoor unit fan during operation; and determining the duct length based on the initial operating current.

[0015] Optionally, the duct length is determined based on the initial operating current, including: determining the duct length coefficient; and determining the duct length based on the initial operating current and the duct length coefficient.

[0016] Optionally, the duct length is determined based on the initial operating current and a duct length coefficient, including calculating the duct length as follows:

[0017] M = N × I² + k⁶

[0018] Where M is the duct length, I2 is the initial operating current, k6 is the sixth coefficient, and N is the duct length coefficient.

[0019] Alternatively, the length factor can be calculated as follows:

[0020] N=(k7×I 3 +k8×I 2 -k9)×I2

[0021] Where N is the duct length coefficient, I2 is the initial operating current, k7 is the seventh coefficient, k8 is the eighth coefficient, and k9 is the ninth coefficient.

[0022] Optionally, after calculating the current clogging rate of the filter according to the target calculation formula, the method further includes: adjusting the fan speed of the outdoor unit based on the current clogging rate.

[0023] In some embodiments, an apparatus for determining the clogging rate of an air conditioner filter includes a processor and a memory storing program instructions, the processor being configured to, when running the program instructions, execute the method described above for determining the clogging rate of an air conditioner filter.

[0024] In some embodiments, an air conditioner includes: a device body; and the means for determining the clogging rate of an air conditioner filter, as described above, is installed on the device body.

[0025] The method, apparatus, and air conditioner for determining the filter clogging rate of an air conditioner provided in this disclosure can achieve the following technical effects:

[0026] In this embodiment, the air conditioner includes an indoor unit, an outdoor unit, and an air duct. The process of determining the current clogging rate of the air conditioner's filter involves first determining a target calculation formula based on the duct length and the outdoor unit's fan speed under stable operation. Then, the current of the outdoor unit's fan during stable operation and the indoor unit's airflow are substituted into the target calculation formula to calculate the current clogging rate of the filter. This embodiment considers whether the air conditioner is connected to an air duct and the length of the duct. This enables the determination of the filter clogging status for air conditioners connected to air ducts.

[0027] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0028] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0029] Figure 1 This is a schematic diagram of an air conditioner provided in an embodiment of this disclosure;

[0030] Figure 2This is a schematic diagram of a method for determining the clogging rate of an air conditioner filter provided in an embodiment of this disclosure;

[0031] Figure 3 This is a schematic diagram of another method for determining the clogging rate of an air conditioner filter provided in an embodiment of this disclosure;

[0032] Figure 4 This is a schematic diagram of another method for determining the clogging rate of an air conditioner filter provided in an embodiment of this disclosure;

[0033] Figure 5 This is a schematic diagram of another method for determining the clogging rate of an air conditioner filter provided in an embodiment of this disclosure;

[0034] Figure 6 This is a schematic diagram of an apparatus for determining the clogging rate of an air conditioner filter, provided in an embodiment of this disclosure. Detailed Implementation

[0035] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0036] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0037] Unless otherwise stated, the term "multiple" means two or more.

[0038] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0039] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0040] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0041] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0042] like Figure 1 As shown, the air conditioner 10 provided in this embodiment includes a device body 100 and a device 600 for determining the clogging rate of the air conditioner filter. Specifically, the device 600 for determining the clogging rate of the air conditioner filter is installed on the device body 100.

[0043] Optionally, the air conditioner includes an indoor unit, an outdoor unit, ductwork, and a filter 200.

[0044] Optionally, the device 600 for determining the filter clogging rate of the air conditioner includes a processor. The processor can determine a target calculation formula based on the acquired fan speed of the outdoor unit and the duct length of the air conditioner; and can calculate the current clogging rate of the filter 200 according to the target calculation formula based on the stable operating current and the air volume of the indoor unit. This allows the user to understand the clogging status of the filter 200 of the air conditioner 10 so that it can be cleaned in a timely manner.

[0045] Combination Figure 1 The air conditioner shown in this disclosure provides a method for determining the filter clogging rate of the air conditioner, such as... Figure 2 As shown, the method includes:

[0046] S201, the processor obtains the air volume of the indoor unit, the stable operating current of the outdoor unit fan, and the fan speed of the outdoor unit when the air conditioner is running smoothly.

[0047] Specifically, the theoretical airflow of the indoor unit can be determined based on the stable operating current and fan speed of the outdoor unit. The difference between the theoretical and actual airflow of the indoor unit is usually caused by clogged air conditioner filters. Therefore, the degree of filter clogging can be determined by comparing the theoretical airflow of the indoor unit with the actual airflow. Thus, this embodiment requires obtaining the airflow of the indoor unit, the stable operating current of the outdoor unit fan, and the fan speed of the outdoor unit.

[0048] Specifically, during unstable operating phases such as the start-up phase of an air conditioner, the accuracy of the filter clogging rate calculated from the indoor unit's air volume, the outdoor unit's stable operating current, and the outdoor unit's fan speed is relatively low. Therefore, this disclosure limits the acquisition of the above parameters to the condition of stable operation of the air conditioner.

[0049] S202, the processor obtains the length of the air conditioner's duct.

[0050] Specifically, the air duct of an air conditioner is the air intake duct of the air conditioner, which is used to guide cold or hot air from the air outlet of the air conditioner to the location required by the user.

[0051] Specifically, for air conditioners connected to ducts, the air volume is related to the duct length (e.g., under the same conditions, the air volume of an air conditioner with a longer duct is less than that of an air conditioner with a shorter duct). Therefore, when determining whether an air conditioner's filter is clogged, the length of the duct connected to the air conditioner also needs to be considered.

[0052] S203, the processor determines the target calculation formula based on the outdoor unit's fan speed and duct length.

[0053] Specifically, the method for calculating the theoretical air volume of the indoor unit differs depending on the duct length or the outdoor unit fan speed. Therefore, the method for calculating the filter clogging rate also differs depending on the duct length or the outdoor unit fan speed. Thus, this embodiment of the disclosure requires determining a target calculation formula for calculating the air conditioner filter clogging rate based on the outdoor unit fan speed and duct length.

[0054] Optionally, embodiments of this disclosure pre-build a model for determining the target calculation formula. This model can be pre-trained based on a neural network model or a large model. The processor only needs to input the fan speed and duct length of the outdoor unit into the model to obtain the target calculation method corresponding to the fan speed and duct length.

[0055] Optionally, embodiments of this disclosure pre-construct a mapping relationship for determining the target calculation formula. The processor can then use this mapping relationship to find the target calculation formula corresponding to the fan speed and duct length.

[0056] S204, the processor calculates the current dirt and clogging rate of the filter according to the target calculation formula based on the stable operating current and the air volume of the indoor unit.

[0057] Specifically, after determining the target calculation formula, the processor incorporates the stable operating current of the outdoor unit fan and the indoor unit air volume into the target formula to obtain the current dirt and clogging rate of the air conditioner filter.

[0058] It should be noted that in this embodiment, the clogging rate of the air conditioner filter is expressed as a percentage of the clogged area to the total filter area. For example, if the calculated current clogging rate is 50%, it means that the clogged area accounts for 50% of the total filter area.

[0059] In this embodiment, the air conditioner includes an indoor unit, an outdoor unit, and an air duct. The process of determining the current clogging rate of the air conditioner's filter involves first determining a target calculation formula based on the duct length and the outdoor unit's fan speed under stable operation. Then, the current of the outdoor unit's fan during stable operation and the indoor unit's airflow are substituted into the target calculation formula to calculate the current clogging rate of the filter. This embodiment considers whether the air conditioner is connected to an air duct and the length of the duct. This enables the determination of the filter clogging status for air conditioners connected to air ducts.

[0060] This disclosure provides a method for determining the clogging rate of an air conditioner filter, such as... Figure 3 As shown, the method includes:

[0061] S301, the processor obtains the air volume of the indoor unit, the stable operating current of the outdoor unit fan, and the fan speed of the outdoor unit when the air conditioner is running smoothly.

[0062] S302, the processor obtains the length of the air conditioner's duct.

[0063] S303, the processor, based on the first mapping relationship, selects multiple sets of formula coefficients corresponding to the duct length from the coefficient database.

[0064] Specifically, the calculation methods for filter clogging rates differ depending on the duct length, and even for the same duct length, the calculation methods for filter clogging rates differ depending on the fan speed of the outdoor unit. Specifically, the different calculation methods are reflected in the coefficients of each parameter in the calculation formula. Therefore, this embodiment of the disclosure needs to select multiple sets of formula coefficients corresponding to the duct length from the coefficient database based on a preset first mapping relationship.

[0065] S304, the processor selects the target formula coefficient corresponding to the fan speed from multiple sets of formula coefficients based on the second mapping relationship.

[0066] Specifically, the calculation methods for the fan speed of different outdoor units are different, and these different calculation methods are reflected in the coefficients of each parameter in the calculation formula. Therefore, based on a preset second mapping relationship, this embodiment can determine the target formula coefficient corresponding to the fan speed of the outdoor unit from multiple sets of formula coefficients corresponding to the same duct length.

[0067] S305, the processor determines the target calculation formula based on the target formula coefficients.

[0068] Specifically, by assigning the values ​​of each coefficient in the target formula to its corresponding position, the target calculation formula can be obtained.

[0069] The S306 processor calculates the current clogging rate of the filter based on the stable operating current and the air volume of the indoor unit, according to the target calculation formula.

[0070] Optionally, the target formula coefficients include a first coefficient, a second coefficient, a third coefficient, a fourth coefficient, and a fifth coefficient, and the target calculation formula is shown below:

[0071]

[0072] Where K is the current clogging rate of the filter, I1 is the stable operating current of the outdoor unit fan, and Q is the air volume of the indoor unit. k1 is the first coefficient, k2 is the second coefficient, k3 is the third coefficient, k4 is the fourth coefficient, and k5 is the fifth coefficient.

[0073] For example, taking a duct length of 5m and an outdoor unit fan speed of 1000rpm as an example:

[0074] Based on the first mapping relationship, multiple sets of formula coefficients corresponding to a 5m duct length can be filtered from the coefficient database, including group A (rotation speed greater than or equal to 900rpm and less than or equal to 950rpm): [0.0238, 0.0238] 2 +2×10 7 [0.9715, 12.086, 131.64], Group B (speed greater than 950 rpm and speed less than or equal to 1000 rpm): [0.0238, 0.0238] 2 +2×10 7 [0.5849, 12.784, 149.1] and Group C (speed greater than 1000 rpm and speed less than or equal to 1050 rpm): [0.0238, 0.0238] 2 +2×10 7 [0.6796, 6.9652, 157.04]

[0075] Based on the second mapping relationship, the target formula coefficient corresponding to the outdoor unit's fan speed of 1000 rpm can be determined to be the formula of group B.

[0076] Assign 0.0238 to the first coefficient, and then assign 0.0238... 2 +2×10 7 Assigning the value to the second coefficient, 0.5849 to the third coefficient, 12.784 to the fourth coefficient, and 149.1 to the fifth coefficient, we can obtain the target calculation formula:

[0077]

[0078] Furthermore, the processor will obtain the air volume of the indoor unit and the stable operating current of the outdoor unit fan, and input them into the above target calculation formula to obtain the current dirt and clogging rate of the air conditioner filter.

[0079] In this embodiment, considering that the calculation methods for filter clogging rates differ for different duct lengths, and that the calculation methods for filter clogging rates differ for different outdoor unit fan speeds even for the same duct length, a first mapping relationship and a second mapping relationship are preset. Before determining the current filter clogging rate, a target calculation formula corresponding to the duct length and outdoor unit fan speed is first determined based on the preset first and second mapping relationships. Then, the current filter clogging rate is calculated according to the target calculation formula. This improves the accuracy of the determined current filter clogging rate.

[0080] This disclosure provides a method for determining the clogging rate of an air conditioner filter, such as... Figure 4 As shown, the method includes:

[0081] S401, the processor obtains the air volume of the indoor unit, the stable operating current of the outdoor unit fan, and the fan speed of the outdoor unit when the air conditioner is running smoothly.

[0082] S402, the processor controls the outdoor unit fan to operate at the rated air volume when the air conditioner is initially powered on.

[0083] Specifically, since the duct length of an air conditioner is set according to the actual situation during installation, this duct length may be unknown to the user. Therefore, it is necessary to calculate the duct length based on the air conditioner's operating parameters. Because the air conditioner's filter may become clogged after prolonged operation, the calculated duct length may be inaccurate. Therefore, in this embodiment, it is necessary to control the air conditioner to operate at its rated airflow for a certain period of time upon initial power-on, so that the duct length can be calculated subsequently based on the air conditioner's operating parameters during this period.

[0084] S403, the processor obtains the initial operating current of the outdoor unit fan during operation.

[0085] Specifically, for different duct lengths, the required outdoor unit fan speed to achieve the rated airflow of the air conditioner varies. Since the outdoor unit fan speed is related to its operating current, and the operating current is easier to obtain than the speed data, in this embodiment of the disclosure, the initial operating current of the outdoor unit fan is acquired when the air conditioner is initially powered on and running at the rated airflow. This initial operating current is then used to determine the duct length of the air conditioner.

[0086] S404, the processor determines the duct length based on the initial operating current.

[0087] Specifically, assuming the air conditioner filter is not clogged, the outdoor unit fan speed required for an air conditioner with a longer duct to reach its rated airflow is higher than that required for an air conditioner with a shorter duct to reach its rated airflow. Since the outdoor unit fan speed is correlated with its operating current (e.g., positively correlated), this embodiment of the disclosure can determine the duct length based on the initial operating current of the outdoor unit fan.

[0088] Optionally, the duct length is determined based on the initial operating current, including: determining the duct length coefficient; and determining the duct length based on the initial operating current and the duct length coefficient.

[0089] Specifically, the duct length is determined based on the initial operating current mentioned above.

[0090] Alternatively, the duct length factor can be calculated as follows:

[0091] N=(k7×I 3 +k8×I 2 -k9)×I2

[0092] Where N is the duct length coefficient, I2 is the initial operating current, k7 is the seventh coefficient, k8 is the eighth coefficient, and k9 is the ninth coefficient.

[0093] It should be noted that the seventh coefficient k7, the eighth coefficient k8, and the ninth coefficient k9 used to calculate the duct length coefficient N are different for different models of air conditioners.

[0094] For example, taking an air conditioner with a rated speed of 955 rpm as an example, its seventh coefficient K7 is 0.4135, the eighth coefficient K8 is 12.914, and the ninth coefficient K9 is 743.95. That is, the formula for calculating the duct length coefficient of this air conditioner is: N = (0.4135 × I) / (12.914 × ... 3 +12.914×I 2 -743.95)×I2.

[0095] Optionally, the duct length is determined based on the initial operating current and a duct length coefficient, including calculating the duct length as follows:

[0096] M = N × I² + k⁶

[0097] Where M is the duct length, I2 is the initial operating current, k6 is the sixth coefficient, and N is the duct length coefficient.

[0098] It should be noted that the sixth coefficient k6 used to calculate the duct length is different for different models of air conditioners.

[0099] For example, taking an air conditioner with a rated speed of 955 rpm as an example, its sixth coefficient k6 is 1743.7. That is, the formula for calculating the duct length of this air conditioner is: M=N×I2+1743.7.

[0100] S405, the processor determines the target calculation formula based on the outdoor unit's fan speed and duct length.

[0101] The S406 processor calculates the current clogging rate of the filter based on the stable operating current and the air volume of the indoor unit, according to the target calculation formula.

[0102] In this embodiment, the duct length is calculated based on the initial operating current of the outdoor unit fan obtained when the air conditioner is initially powered on and running at its rated airflow. Since the air conditioner's filter is typically free of dirt or blockage upon initial power-on, the duct length calculated based on the parameters obtained during filter initial power-on is relatively accurate. This improves the accuracy of the subsequent target calculation formula determined based on the duct length, thereby improving the accuracy of calculating the current dirt / blockage rate of the air conditioner's filter.

[0103] Optionally, after determining the current clogging rate of the filter, the method further includes: issuing a prompt message that the filter needs to be cleaned when the current clogging rate is greater than or equal to a first threshold and less than a second threshold; or issuing a prompt message that the air conditioner has a filter clogging fault when the current clogging rate is greater than or equal to the second threshold, and controlling the air conditioner to stop running; wherein the second threshold is greater than the first threshold.

[0104] Specifically, when the current dirt clogging rate of the air conditioner filter is greater than or equal to a first threshold and less than a second threshold, it indicates that the air conditioner filter is clogged, but the impact on the operation of the air conditioner is relatively small. Therefore, in this case, the air conditioner can be kept running while sending a prompt message to the user indicating that the filter needs cleaning.

[0105] Specifically, when the current dirt clogging rate of the air conditioner filter is greater than or equal to the second threshold, it indicates that the air conditioner is clogged and has a significant impact on its operation. If the air conditioner operates under these conditions for an extended period, it may damage components such as the compressor and outdoor unit fan. Therefore, in this situation, it is necessary to send a warning message to the user indicating a dirt clogging fault and to stop the air conditioner from operating. This reduces the risk of damage to the air conditioner's components.

[0106] This disclosure provides a method for determining the clogging rate of an air conditioner filter, such as... Figure 5As shown, the method includes:

[0107] The S501 processor obtains the air volume of the indoor unit, the stable operating current of the outdoor unit fan, and the fan speed of the outdoor unit when the air conditioner is running smoothly.

[0108] S502, the processor obtains the length of the air conditioner's duct.

[0109] The S503 processor determines the target calculation formula based on the outdoor unit's fan speed and duct length.

[0110] The S504 processor calculates the current clogging rate of the filter based on the stable operating current and the air volume of the indoor unit, according to the target calculation formula.

[0111] The S505 processor adjusts the outdoor unit's fan speed based on the current dirt and clogging rate.

[0112] Specifically, if the air conditioner's filter is clogged, the airflow from the air conditioner to the room will not meet the user's needs, causing the room to take a long time to reach the user's desired temperature after the air conditioner is turned on.

[0113] Specifically, the current clogging rate of the filter can determine the air loss between the indoor unit's intake and exhaust. Based on this loss, it can be determined how much the fan speed needs to be increased to ensure the indoor unit's exhaust volume reaches the standard output volume. Therefore, in this embodiment, the outdoor unit's fan speed can be adjusted according to the current clogging rate of the filter.

[0114] In this embodiment, when the air conditioner is clogged, the outdoor unit's fan speed is adjusted according to the current clogging rate of the filter. This ensures that even with a clogged filter, the indoor unit's airflow can still meet the user's needs, accelerating the temperature adjustment process and improving the user experience.

[0115] Combination Figure 6 As shown in the figure, this disclosure provides an apparatus 600 for determining the clogging rate of an air conditioner filter. The apparatus 600 includes a processor 601 and a memory 602. Optionally, the apparatus may further include a communication interface 603 and a bus 604. The processor 601, communication interface 603, and memory 602 can communicate with each other via the bus 604. The communication interface 603 can be used for information transmission. The processor 601 can call logical instructions in the memory 602 to execute the method for determining the clogging rate of an air conditioner filter described in the above embodiment.

[0116] Furthermore, the logic instructions in the aforementioned memory 602 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0117] The memory 602, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 601 executes functional applications and data processing by running the program instructions / modules stored in the memory 602, that is, it implements the method for determining the air conditioner filter clogging rate in the above embodiments.

[0118] The memory 602 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 602 may include high-speed random access memory and may also include non-volatile memory.

[0119] Combination Figure 1 As shown, this disclosure provides an air conditioner 10, including: a device body 100, and the aforementioned device 600 for determining the air conditioner filter clogging rate. The device 600 for determining the air conditioner filter clogging rate is installed in the device body 100. The installation relationship described herein is not limited to placement inside the product, but also includes installation connections with other components of the air conditioner 10, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the device 600 for determining the air conditioner filter clogging rate can be adapted to any feasible air conditioner 10, thereby realizing other feasible embodiments.

[0120] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for determining the clogging rate of an air conditioner filter.

[0121] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0122] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0123] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0124] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0125] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure 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.

[0126] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for determining the dirt clogging rate of an air conditioner filter, characterized by, The method comprises the following steps: In the case of smooth running of the air conditioner, obtaining the air outlet quantity of the indoor unit, the smooth running current of the outdoor unit fan and the fan rotating speed of the outdoor unit; Obtaining the air duct length of the air conditioner; According to the fan rotating speed of the outdoor unit and the air duct length, determining a target calculation formula; According to the smooth running current and the air outlet quantity of the indoor unit, calculating the current clogging rate of the filter screen according to the target calculation formula.

2. The method of claim 1, wherein, According to the fan rotating speed of the outdoor unit and the air duct length, determining a target calculation formula, comprising: Based on the first mapping relationship, screening a plurality of formula coefficients corresponding to the air duct length from the coefficient database; Based on the second mapping relationship, screening a target formula coefficient corresponding to the fan rotating speed from the plurality of formula coefficients; According to the target formula coefficient, determining a target calculation formula.

3. The method of claim 2, wherein, The target formula coefficient comprises a first coefficient, a second coefficient, a third coefficient, a fourth coefficient and a fifth coefficient; The target calculation formula is as follows: Wherein, K is the current clogging rate of the filter screen, I1 is the smooth running current of the outdoor unit fan, Q is the air outlet quantity of the indoor unit, k1 is the first coefficient, k2 is the second coefficient, k3 is the third coefficient, k4 is the fourth coefficient, and k5 is the fifth coefficient.

4. The method according to any one of claims 1 to 3, characterized in that, Obtaining the air duct length of the air conditioner comprises: In the case of initial power-on of the air conditioner, controlling the outdoor unit fan to run at a rated air outlet quantity; Obtaining the initial running current of the outdoor unit fan during running; According to the initial running current, determining the air duct length.

5. The method of claim 4, wherein, According to the initial running current, determining the air duct length, comprising: Determining the air duct length coefficient; Based on the initial running current, determining the air duct length according to the air duct length coefficient.

6. The method of claim 5, wherein, Based on the initial running current, determining the air duct length according to the air duct length coefficient, comprising calculating the air duct length in the following manner: M=N×I2+k6 Wherein, M is the air duct length, I2 is the initial running current, k6 is the sixth coefficient, and N is the air duct length coefficient.

7. The method of claim 5, wherein, Calculating the air duct length coefficient in the following manner: N = (k7 x I 3 + k8 x I 2 - k9) x I2 Wherein, N is the air duct length coefficient, I2 is the initial running current, k7 is the seventh coefficient, k8 is the eighth coefficient, and k9 is the ninth coefficient.

8. The method according to any one of claims 1 to 3, characterized in that, After calculating the current clogging rate of the filter screen according to the target calculation formula, the method further comprises: According to the current clogging rate, adjusting the fan rotating speed of the outdoor unit.

9. An apparatus for determining a clogging rate of an air conditioner filter, comprising a processor and a memory having stored program instructions, wherein, The processor is configured to execute the method for determining the clogging rate of the filter screen of the air conditioner when running the program instructions.

10. An air conditioner characterized by comprising: The device comprises: A device body; The device for determining the clogging rate of the filter screen of the air conditioner according to claim 9 is installed in the device body.

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