Air conditioner and cleanliness detection method, device and medium

Abstract

The application relates to an air conditioner and a cleanliness detection method, device and medium. The method is applied to the air conditioner, the air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger and a drain pipe, one side of the drain pipe is connected to the bottom of the indoor heat exchanger, the other side of the drain pipe is connected to the top of the outdoor heat exchanger, the bottom of the inner side of the outdoor heat exchanger is provided with a weight sensor, when the air conditioner operates in a refrigeration mode, the drain pipe is controlled to drop condensed water downward according to a preset period, so that the condensed water flows through fins in the outdoor heat exchanger, and timing is started when the first drop of condensed water drops; when the weight sensor receives the condensed water, the timing is ended, and an actual dropping duration and / or an actual weight of the condensed water received by the weight sensor is acquired; according to the actual dropping duration and / or the actual weight, the dust adhesion condition of the fins is determined. In the method, the condensed water generated by the indoor heat exchanger is discharged to the outdoor heat exchanger, and then the cleanliness of the fins is determined according to the dropping duration and / or the weight of the condensed water.

Description

Technical Field

[0001] This application belongs to the field of intelligent electrical appliances, specifically relating to an air conditioner and a method, device and medium for detecting cleanliness. Background Technology

[0002] With the increasing intelligence of air conditioners and the improvement of people's quality of life, people have put forward higher and higher requirements for air conditioners. For example, after working for a long time, the air conditioner should turn on the self-cleaning mode to remove the dust attached to the internal components of the air conditioner, mainly the fins of the outdoor heat exchanger, so as to provide people with a clean and comfortable environment.

[0003] In existing technologies, air conditioners generally measure the cleanliness of the fins based on the cumulative running time, and then automatically start the self-cleaning mode after a preset time is reached, or the user can manually start the self-cleaning function when needed.

[0004] However, neither activating the self-cleaning mode based on accumulated operating time nor manual operation by the user can accurately determine the dust adhesion inside the outdoor heat exchanger, thus making it impossible to determine whether the self-cleaning mode should be activated at that moment and failing to achieve precise dust removal. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, namely, to accurately determine the current dust adhesion of the outdoor heat exchanger in order to activate the self-cleaning mode for precise dust removal, this application provides an air conditioner and a method, device and medium for detecting cleanliness.

[0006] In a first aspect, this application provides a cleanliness detection method applied to an air conditioner, the air conditioner including an indoor heat exchanger, an outdoor heat exchanger, and a drain pipe, one side of the drain pipe being connected to the bottom of the indoor heat exchanger and the other side of the drain pipe being connected to the top of the outdoor heat exchanger, a weight sensor being provided at the bottom of the inner side of the outdoor heat exchanger, the method comprising:

[0007] When the air conditioner is in cooling mode, it controls the drain pipe to drip condensate water downwards according to a preset cycle so that the condensate water flows through the fins in the outdoor heat exchanger and the timing starts when the first drop of condensate water falls.

[0008] When the weight sensor receives condensate, the timing ends, and the actual dripping time and / or the actual weight of the condensate received by the weight sensor are obtained.

[0009] The dust adhesion status of the fins is determined based on the actual dripping time and / or the actual weight.

[0010] In one possible implementation, determining the dust adhesion status of the fins based on the dripping duration includes:

[0011] Obtain the pre-stored standard dripping time and calculate the first difference between the actual dripping time and the standard dripping time, wherein the standard dripping time is the dripping time of condensate when the fins are in a clean state;

[0012] Determine whether the first difference is greater than a preset time difference;

[0013] If so, it confirms that there is a large amount of dust adhering to the surface of the fins;

[0014] If not, then it is confirmed that there is a small amount of dust adhering to the surface of the fins.

[0015] In one possible implementation, determining the dust adhesion status of the fins based on the actual weight includes:

[0016] Obtain the pre-stored standard weight and calculate the second difference between the standard weight and the actual weight, wherein the standard weight is the weight of condensate dripping from the fins when they are in a clean state;

[0017] Determine whether the second difference is greater than a preset weight difference;

[0018] If so, it confirms that there is a large amount of dust adhering to the surface of the fins;

[0019] If not, then it is confirmed that there is a small amount of dust adhering to the surface of the fins.

[0020] In one possible implementation, determining the dust adhesion status of the fins based on the actual dripping time and the actual weight includes:

[0021] When the actual dripping time is greater than the preset time and the actual weight is greater than the preset weight, the actual dripping time and actual weight of the newly dripping condensate will continue to be obtained.

[0022] When the number of times the actual dripping time exceeds the preset time reaches the preset number, or the number of times the actual weight exceeds the preset weight reaches the preset number, it is determined that a large amount of dust is attached to the fin surface.

[0023] In one possible implementation, after determining that a large amount of dust adheres to the fin surface, the method further includes:

[0024] Control the drain pipe to stop dripping condensate, activate the self-cleaning mode to clean the fins, and deactivate the self-cleaning mode after a preset time.

[0025] In one possible implementation, after determining that a large amount of dust adheres to the fin surface, the method further includes:

[0026] Activate the self-cleaning mode to clean the fins;

[0027] The self-cleaning mode is turned off when the actual dripping time is determined to be small amount of dust on the fin surface.

[0028] In one possible implementation, after determining that a large amount of dust adheres to the fin surface, the method further includes:

[0029] Activate the self-cleaning mode to clean the fins;

[0030] The self-cleaning mode is turned off when the actual weight is measured and it is determined that there is a small amount of dust on the fin surface.

[0031] Secondly, this application provides a cleanliness detection device for use in an air conditioner. The air conditioner includes an indoor heat exchanger, an outdoor heat exchanger, and a drain pipe. One side of the drain pipe is connected to the bottom of the indoor heat exchanger, and the other side of the drain pipe is connected to the top of the outdoor heat exchanger. A weight sensor is installed at the bottom of the inner side of the outdoor heat exchanger. The cleanliness detection device includes:

[0032] The first processing module is used to control the drain pipe to drip a preset weight of condensate water downwards according to a preset cycle when the air conditioner is running in cooling mode, so that the condensate water flows through the fins in the indoor heat exchanger, and to start timing when the first drop of condensate water drips.

[0033] The second processing module is used to stop the timing and obtain the actual dripping time when the weight sensor receives condensate.

[0034] The third processing module is used to determine the dust adhesion status of the fins based on the actual dripping time.

[0035] Thirdly, this application provides an air conditioner, which includes an indoor heat exchanger, an outdoor heat exchanger and a drain pipe. One side of the drain pipe is connected to the bottom of the indoor heat exchanger and the other side of the drain pipe is connected to the top of the outdoor heat exchanger. A weight sensor is provided at the bottom of the inner side of the outdoor heat exchanger. The air conditioner also includes at least one processor and a memory.

[0036] The drain pipe is used to discharge the condensate produced by the indoor heat exchanger to the outdoor heat exchanger.

[0037] The weight sensor is used to obtain the weight of the condensate dripping from the outdoor heat exchanger;

[0038] The drain pipe and the weight sensor are respectively connected to the at least one processor;

[0039] The memory stores computer-executed instructions;

[0040] At least one processor executes computer execution instructions stored in memory, causing at least one processor to perform the cleanliness detection method as described above.

[0041] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the cleanliness detection method as described above.

[0042] The air conditioner and cleanliness detection method, apparatus, and medium provided in this application are applied to an air conditioner, which includes an indoor heat exchanger, an outdoor heat exchanger, and a drain pipe. One side of the drain pipe is connected to the bottom of the indoor heat exchanger, and the other side is connected to the top of the outdoor heat exchanger. A weight sensor is installed at the bottom of the inner side of the outdoor heat exchanger. The method includes controlling the drain pipe to drip condensate downwards according to a preset cycle when the air conditioner is running in cooling mode, so that the condensate flows through the fins in the outdoor heat exchanger, and starting a timer when the first drop of condensate falls; stopping the timer when the weight sensor receives the condensate, and obtaining the actual dripping time and / or the actual weight of the condensate received by the weight sensor; and determining the dust adhesion status of the fins based on the actual dripping time and / or the actual weight.

[0043] In the above method, the condensate generated by the indoor heat exchanger in cooling mode is discharged into the outdoor heat exchanger. The condensate flows through the fins inside the outdoor heat exchanger. When dust adheres to the surface of the fins, the condensate will adhere to the dust, which slows down the downward flow rate of the condensate. Therefore, by obtaining the dripping time and / or dripping weight of the condensate from the top to the bottom of the outdoor heat exchanger and comparing it with the corresponding preset time and preset weight, the cleanliness of the fins can be determined. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0045] Figure 1 A schematic diagram of an air conditioner scenario provided for an embodiment of this application;

[0046] Figure 2 A flowchart of a cleanliness testing method provided in this application embodiment Figure 1 ;

[0047] Figure 3 A flowchart of a cleanliness testing method provided in this application embodiment Figure 2 ;

[0048] Figure 4 A flowchart of a cleanliness testing method provided in this application embodiment Figure 3;

[0049] Figure 5 A flowchart of a cleanliness testing method provided in this application embodiment Figure 4 ;

[0050] Figure 6 This is a schematic diagram of a cleanliness detection device provided in an embodiment of the present invention;

[0051] Figure 7 This is a hardware schematic diagram of an air conditioner provided in an embodiment of the present invention.

[0052] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this invention 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 so that embodiments of the invention described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0055] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0056] With the development of technology and the improvement of people's living standards, the frequency of use of smart air conditioners is also increasing. Smart air conditioners generally include an indoor heat exchanger, an outdoor heat exchanger, and a compressor. The outdoor heat exchanger is installed outdoors and is lower than the indoor heat exchanger. Therefore, the vertically spaced fins inside the outdoor heat exchanger easily accumulate dust. When a large amount of dust accumulates on the fin surface, it will seriously affect the working quality and efficiency of the outdoor heat exchanger. In existing technology, the cleanliness of the fins is roughly judged based on the cumulative working time of the outdoor heat exchanger to automatically activate the self-cleaning mode, or the cleaning is manually activated by the user.

[0057] However, based on accumulated operating time or user operation, it is impossible to accurately know the dust adhesion status of the fins in the outdoor heat exchanger, and therefore it is impossible to determine whether it is necessary to start the cleaning mode at the moment, thus failing to achieve precise dust removal.

[0058] Therefore, this application proposes a method for detecting the cleanliness of outdoor heat exchanger fins. The method mainly involves draining condensate generated by the indoor heat exchanger in cooling mode into the outdoor heat exchanger through a drain pipe. The condensate drips from the top of the outdoor heat exchanger to the bottom and flows through the fins during the dripping process. By calculating the dripping time and / or the weight of the condensate dripping to the bottom of the outdoor heat exchanger and comparing it with the corresponding preset values, it can be determined whether the condensate is affected by dust adhering to the fin surface during the dripping process.

[0059] The following is combined Figure 1 The application scenarios of this application will be explained.

[0060] Figure 1 This is a schematic diagram illustrating a scenario for an air conditioner provided in an embodiment of this application. Figure 1 As shown, the air conditioner includes an indoor heat exchanger 101, an outdoor heat exchanger 102, and a drain pipe 103. One side of the drain pipe 103 is connected to the bottom of the indoor heat exchanger 101, and the other side is connected to the top of the outdoor heat exchanger 102. A weight sensor 104 is installed at the bottom inside the outdoor heat exchanger 102, and fins 105 are installed inside the outdoor heat exchanger 102. Furthermore, the installation position and connection relationship of the fins 105 in the outdoor heat exchanger 102 are existing technologies and will not be elaborated upon in this application.

[0061] The weight sensor 104 is a device that converts a mass signal into a measurable electrical signal output, which can be used to detect the weight of an object. In this embodiment, the weight sensor 104 is mainly used to detect the weight of condensate dripping onto the surface of the weight sensor 104.

[0062] As is known in the art, indoor heat exchanger 101 is generally installed indoors and at a higher position, while outdoor heat exchanger 102 is generally installed outdoors and at a lower position than indoor heat exchanger 101. In addition, the number of fins 105 in outdoor heat exchanger 102 is usually larger and arranged neatly. Therefore, in order to facilitate the detection of condensate dripping inside outdoor heat exchanger 102, the surface of weight sensor 104 can be a flat plate structure and placed horizontally in outdoor heat exchanger 102. In this way, it can effectively receive condensate dripping from multiple fins 105.

[0063] When the air conditioner is in cooling mode, the surface temperature of the indoor heat exchanger 101 is low. The hot indoor air condenses on the indoor heat exchanger 101 when it encounters the cold air, producing condensate. At this time, the drain pipe 103 can be controlled to drip the condensate downwards according to a preset cycle. When the fins 105 are clean, the dripping of condensate is not affected by other factors, and the dripping time and weight at this time can be used as the standard dripping time and weight. When dust adheres to the surface of the fins 105, the dust will trap the condensate dripping from the top, thereby slowing down the dripping speed and reducing the dripping weight. At this time, the condensate may need to collect multiple drops before it drips onto the surface of the weight sensor 104. Therefore, the actual dripping time and dripping weight will change significantly.

[0064] By comparing the actual dripping time and / or dripping weight with the standard dripping time and / or standard weight, it can be determined whether the actual state value exceeds the standard state value. If the actual dripping time and / or actual weight exceeds the standard dripping time and / or standard weight, it can be determined that dust is attached to the fin surface. Furthermore, when the difference between the actual state value and the standard state value is large, it can be determined that the dust adhesion is serious and needs to be cleaned in time.

[0065] To achieve the above solution, it is necessary to control the frequency of condensate dripping down the drain pipe 103. A solenoid valve can be installed at the drain outlet of the drain pipe 103, and the discharge of condensate can be controlled by controlling the opening and closing of the solenoid valve. Alternatively, other devices can be used to control the drainage frequency of the drain pipe 103. In addition, to prevent the accumulation of large amounts of condensate in the drain pipe 103, a drainage branch can be added to the top of the drain pipe 103. When the condensate level in the drain pipe 103 reaches the outlet of the drainage branch, it should be promptly discharged into the outdoor heat exchanger 102 through the drainage branch.

[0066] The interaction between the above-mentioned devices not only facilitates the detection of whether dust adheres to the surface of the fins, but also reveals the extent to which the dust affects the condensate dripping process.

[0067] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be implemented independently or in combination with each other. The same or similar concepts or processes may not be described again in some embodiments.

[0068] Figure 2 A flowchart of a cleanliness testing method provided in this application embodiment Figure 1 .like Figure 2 As shown, this method is applied to an air conditioner, which includes an indoor heat exchanger, an outdoor heat exchanger, and a drain pipe. One side of the drain pipe is connected to the bottom of the indoor heat exchanger, and the other side is connected to the top of the outdoor heat exchanger. A weight sensor is installed at the bottom inside the outdoor heat exchanger. The method includes:

[0069] S201. When the air conditioner is in cooling mode, it controls the drain pipe to drip condensate water downwards according to a preset cycle so that the condensate water flows through the fins in the outdoor heat exchanger, and the timing starts when the first drop of condensate water falls.

[0070] In the above scheme, when the air conditioner is cooling, the surface temperature of the indoor heat exchanger is low. The hot indoor air condenses upon encountering the cold air, resulting in condensate on the surface of the indoor heat exchanger. This condensate collects and flows into the drain pipe. Since the drain outlet is located at the top of the outdoor heat exchanger, the condensate drips down over the fins. The cleanliness of the fin surface affects the dripping process. To clearly understand the impact of different cleanliness levels, the entire dripping process needs to be recorded, including either the dripping time or the dripping weight.

[0071] S202. When the weight sensor receives condensate, the timing ends, and the actual dripping time and / or the actual weight of the condensate received by the weight sensor are obtained.

[0072] In this step, the timer starts when the drain pipe drips water downwards and ends when the condensate drips onto the weight sensor. The duration from start to finish is the dripping time of the condensate in the outdoor heat exchanger. Due to the presence of fins, some of the condensate will adhere to the fins and the dust on the fin surface during the entire dripping process. Therefore, the weight of the condensate before and after dripping will change. The actual weight obtained by the weight sensor is the weight of the condensate after the dripping process is complete.

[0073] S203. Determine the dust adhesion status of the fins based on the actual dripping time and / or actual weight.

[0074] In the above scheme, both the actual dripping time and the actual weight can reflect the dripping situation of condensate in the outdoor heat exchanger. When the fin surface is completely clean, the condensate dripping process will not be affected by dust. However, when dust adheres to the fin surface, the dust will not only affect the dripping speed of the condensate but also trap a certain weight of water. The more dust, the greater the impact on the condensate. Therefore, by measuring the actual dripping time and / or the actual weight, one can know whether dust adheres to the fin surface and the approximate amount of dust.

[0075] In this embodiment, the condensate generated by the indoor heat exchanger is discharged to the outdoor heat exchanger through a drain pipe, and the condensate is controlled to drip downwards and flow through the fins according to a preset cycle. The actual dripping time and actual weight of the condensate can be obtained. By comparing it with the corresponding standard value in the fully crystalline state of the fins, the cleanliness of the fin surface can be known.

[0076] The following is combined Figure 3 The specific embodiments illustrate the process of determining the dust adhesion of fins based on the dripping time in the cleanliness detection method of this application.

[0077] Figure 3 A flowchart of a cleanliness testing method provided in this application embodiment Figure 2 .like Figure 3 As shown, the method includes:

[0078] S301. Obtain the pre-stored standard dripping time and calculate the first difference between the actual dripping time and the standard dripping time, wherein the standard dripping time is the dripping time of condensate when the fins are in a clean state.

[0079] In this step, the standard dripping time is the time required for condensate to drip from the top to the bottom of the outdoor heat exchanger when the fins are completely clean. When dust adheres to the fin surface, the flow rate of condensate will be slowed down due to the dust, resulting in a longer dripping time. By calculating the difference between the actual dripping time and the standard dripping time, we can know the extent of the influence of dust on the condensate dripping process.

[0080] S302. Determine whether the first difference is greater than the preset time difference.

[0081] In the above scheme, the first difference reflects the difference between the actual dripping difference and the standard dripping time. The larger the first difference, the greater the difference between the two, and the greater the impact of dust on the condensate dripping process. The preset time difference can serve as a dividing line for the magnitude of dust influence. By comparing the magnitude of the first difference and the preset time difference, the amount of dust adhering to the fin surface can be roughly determined, thereby identifying the appropriate time to activate the cleaning mode.

[0082] S303. If so, it is determined that there is a large amount of dust adhering to the surface of the fins;

[0083] S304. If not, then it is confirmed that there is a small amount of dust on the surface of the fins.

[0084] In this step, if the first difference is greater than the preset time difference, it indicates that the dust adhering to the fin surface is sufficient to affect the normal operation of the fin. At this time, it can be determined that a large amount of dust exists. If the first difference is less than the preset time difference, it indicates that the dust adhering to the fin surface is within a controllable range, that is, the amount of dust adhering is small.

[0085] In the specific implementation process, after determining that a large amount of dust is attached to the surface of the fins, the cleaning mode can be turned on to clean them, and the cleaning mode can be turned off according to the subsequent dripping of condensate. For example, the self-cleaning mode is turned on to clean the fins; the actual dripping time is continuously obtained until it is determined that a small amount of dust is attached to the surface of the fins based on the actual dripping time, at which point the self-cleaning mode is turned off.

[0086] In this embodiment of the application, the difference between the dripping time of condensate in the outdoor heat exchanger and the standard dripping time when the fins are completely clean is obtained to clarify the difference between the actual dripping time and the standard dripping time. When the difference is greater than the preset time difference, i.e., the difference is large, it is determined that a large amount of dust is attached to the fin surface.

[0087] The following is combined Figure 4 The present invention describes the process of determining the dust adhesion of fins based on actual weight in the cleanliness testing method of this application, and provides specific embodiments.

[0088] Figure 4 A flowchart of a cleanliness testing method provided in this application embodiment Figure 2 .like Figure 4 As shown, the method includes:

[0089] S401. Obtain the pre-stored standard weight and calculate the second difference between the standard weight and the actual weight, where the standard weight is the weight of the condensate dripping from the fins when they are in a clean state.

[0090] In this step, the standard weight is the weight of the condensate dripping from the top to the bottom of the outdoor heat exchanger when the fins are completely clean. However, when dust adheres to the fin surface, the dust will affect the condensate, causing some of it to be trapped. This results in the condensate weight decreasing continuously during the dripping process, and it may even fail to drip to the bottom of the outdoor heat exchanger. Multiple drops of condensate need to accumulate before successfully dripping onto the weight sensor. By calculating the difference between the standard weight and the actual weight, the extent of the dust's influence on the condensate dripping process can be determined.

[0091] S402. Determine whether the second difference is greater than the preset weight difference.

[0092] In the above scheme, the second difference reflects the difference between the standard weight and the actual weight. The larger the second difference, the greater the difference between the two, and the greater the impact of dust on the condensate dripping process. The preset weight difference can serve as a dividing line for the magnitude of dust influence. By comparing the magnitude of the second difference with the preset weight difference, the amount of dust adhering to the fin surface can be roughly determined, thereby identifying the appropriate time to activate the cleaning mode.

[0093] S403. If so, then it is determined that there is a large amount of dust adhering to the surface of the fins;

[0094] S404. If not, then it is confirmed that there is a small amount of dust on the surface of the fins.

[0095] In this step, if the second difference is greater than the preset weight difference, it indicates that the dust adhering to the fin surface is sufficient to affect the normal operation of the fin. At this time, it can be determined that a large amount of dust exists. If the second difference is less than the preset weight difference, it indicates that the dust adhering to the fin surface is within a controllable range, that is, the amount of dust adhering is small.

[0096] In the specific implementation process, after determining that a large amount of dust is attached to the surface of the fins, the cleaning mode can be turned on for cleaning, and the cleaning mode can be turned off according to the subsequent dripping of condensate. For example, the self-cleaning mode is turned on to clean the fins; the actual weight is continuously obtained until it is determined that there is a small amount of dust attached to the surface of the fins based on the actual weight, at which point the self-cleaning mode is turned off.

[0097] In this embodiment of the application, the actual weight of the condensate dripping from the top to the bottom of the outdoor heat exchanger is obtained, and the standard weight when the fins are completely clean is compared with the actual weight to obtain the difference between the two, so as to clarify the difference between the standard weight and the actual weight. When the difference is greater than the preset weight difference, i.e. the difference is large, it is determined that a large amount of dust is attached to the fin surface.

[0098] The following is combined Figure 5 The present invention describes the process of determining the dust adhesion of fins based on the actual dripping time and actual weight in the cleanliness detection method of this application, and provides specific embodiments.

[0099] Figure 5 A flowchart of a cleanliness testing method provided in this application embodiment Figure 2 .like Figure 5 As shown, the method includes:

[0100] S501. When the actual dripping time is greater than the preset time and the actual weight is greater than the preset weight, continue to obtain the actual dripping time and actual weight of the newly dripping condensate.

[0101] In this step, the preset duration and preset weight can be the corresponding values ​​when dust begins to affect the operation of the fins or when the dust has a significant impact on the operation of the fins. When the actual dripping duration is greater than the preset duration and the actual weight is greater than the preset weight, it indicates that the dust is already affecting the normal operation of the fins. However, in order to improve the cleaning efficiency of the cleaning mode, the number of times the actual dripping duration and actual weight exceed the corresponding preset values ​​can be counted, and the cleaning mode can only be activated when the number of times accumulates to a certain level, so as to avoid the frequent activation of the cleaning mode affecting the normal operation of the cooling mode.

[0102] S502. When the number of times the actual dripping time exceeds the preset time reaches the preset number, or the number of times the actual weight exceeds the preset weight reaches the preset number, it is determined that a large amount of dust is attached to the fin surface.

[0103] In the above scheme, if either the actual dripping time or the actual weight exceeds the corresponding preset value a certain number of times, it indicates that the amount of dust adhering to the fins is already large and affects the normal operation of the fins.

[0104] In one embodiment, based on the above embodiments, the dust adhesion on the fin surface can be determined according to the first difference and the second difference. For example, when the first difference between the actual dripping time and the standard dripping time is greater than a preset time difference and the second difference between the standard weight and the actual weight is greater than a preset weight difference, the actual dripping time and actual weight of the newly dripping condensate are obtained. When the number of times the first difference is greater than the preset time difference accumulates to a preset number, or the number of times the second difference is greater than the preset weight difference accumulates to a preset number, it is determined that a large amount of dust is attached to the fin surface.

[0105] In this embodiment, by accumulating the number of times the actual dripping time and actual weight exceed the corresponding preset values, and when the number of times one of the variables exceeds the corresponding preset value accumulates to a preset number, it is determined that the amount of dust adhesion is already large and affects the normal operation of the fins. In this way, the appropriate time to start the cleaning mode can be determined according to the accumulated size of the preset number, thereby avoiding frequent cleaning caused by cleaning whenever the actual dripping time or actual weight exceeds the corresponding preset value.

[0106] In the above embodiments, after determining that a large amount of dust is attached to the surface of the fins, the drain pipe can be controlled to stop dripping condensate water downwards, the self-cleaning mode can be turned on to clean the fins, and the self-cleaning mode can be turned off after a preset time.

[0107] In summary, the cleanliness detection method provided in this application discharges the condensate generated by the indoor heat exchanger in cooling mode into the outdoor heat exchanger. The condensate flows through the fins inside the outdoor heat exchanger. When dust adheres to the surface of the fins, the condensate adheres to the dust, thereby slowing down the downward flow rate of the condensate. Therefore, by obtaining the dripping time and / or dripping weight of the condensate from the top to the bottom of the outdoor heat exchanger and comparing it with the corresponding preset time and preset weight, the cleanliness of the fins can be determined.

[0108] Figure 6 This is a schematic diagram of a cleanliness detection device provided in an embodiment of the present invention, as shown below. Figure 6 As shown, the cleanliness detection device is applied to an air conditioner, which includes an indoor heat exchanger, an outdoor heat exchanger, and a drain pipe. One side of the drain pipe is connected to the bottom of the indoor heat exchanger, and the other side of the drain pipe is connected to the top of the outdoor heat exchanger. A weight sensor is installed at the bottom of the inner side of the outdoor heat exchanger. Secondly, the cleanliness detection device may include various functional modules for implementing the aforementioned cleanliness detection method. Any functional module can be implemented by software / or hardware.

[0109] For example, the cleanliness detection device may include:

[0110] The first processing module 601 is used to control the drain pipe to drip a preset weight of condensate water downwards according to a preset cycle when the air conditioner is running in cooling mode, so that the condensate water flows through the fins in the indoor heat exchanger, and to start timing when the first drop of condensate water drips.

[0111] The second processing module 602 is used to stop the timing and obtain the actual dripping time when the weight sensor receives condensate.

[0112] The third processing module 603 is used to determine the dust adhesion status of the fins based on the actual dripping time.

[0113] Optionally, the third processing module 603 can also be used to obtain the pre-stored standard dripping time and calculate the first difference between the actual dripping time and the standard dripping time, wherein the standard dripping time is the dripping time of condensate when the fin is in a clean state; determine whether the first difference is greater than the preset time difference; if so, determine that a large amount of dust is attached to the fin surface; if not, determine that a small amount of dust is attached to the fin surface.

[0114] Optionally, the third processing module 603 can also be specifically used to: obtain a pre-stored standard weight and calculate a second difference between the standard weight and the actual weight, wherein the standard weight is the weight of the condensate dripping when the fin is in a clean state; determine whether the second difference is greater than the preset weight difference; if so, determine that a large amount of dust is attached to the fin surface; if not, determine that a small amount of dust is attached to the fin surface.

[0115] Optionally, the third processing module 603 can also be used to continue to acquire the actual dripping time and actual weight of newly dripping condensate when the actual dripping time is greater than the preset time and the actual weight is greater than the preset weight; and to determine that a large amount of dust is attached to the fin surface when the number of times the actual dripping time is greater than the preset time accumulates to a preset number, or the number of times the actual weight is greater than the preset weight accumulates to a preset number.

[0116] Optionally, the third processing module 603 can also be specifically used to: after determining that a large amount of dust is attached to the surface of the fins, control the drain pipe to stop dripping condensate water downwards, start the self-cleaning mode to clean the fins, and turn off the self-cleaning mode after a preset time.

[0117] Optionally, the third processing module 603 can also be used to activate the self-cleaning mode to clean the fins after determining that a large amount of dust is attached to the fin surface; continuously acquire the actual dripping time until the self-cleaning mode is deactivated when it is determined that a small amount of dust is attached to the fin surface based on the actual dripping time.

[0118] Optionally, the third processing module 603 can also be specifically used to: after determining that a large amount of dust is attached to the fin surface, activate the self-cleaning mode to clean the fin; continuously acquire the actual weight until it is determined that a small amount of dust is attached to the fin surface based on the actual weight, and then deactivate the self-cleaning mode.

[0119] The cleanliness detection device is used to perform the technical solution provided in the aforementioned cleanliness detection method embodiment. Its implementation principle and technical effect are similar to those in the aforementioned method embodiment, and will not be repeated here.

[0120] Figure 7 This is a hardware schematic diagram of an air conditioner provided in an embodiment of the present invention. Figure 7 As shown, the air conditioner 70 provided in this embodiment includes: at least one processor 701, a memory 702, an indoor heat exchanger, an outdoor heat exchanger, a drain pipe 703, and a weight sensor 704. The processor 701, memory 702, drain pipe 703, and weight sensor 704 are connected via a bus 505.

[0121] In the specific implementation process, the drain pipe 703 is used to discharge the condensate generated by the indoor heat exchanger to the outdoor heat exchanger.

[0122] The weight sensor 704 is used to obtain the weight of the condensate dripping from the outdoor heat exchanger;

[0123] The drain pipe 703 and the weight sensor 704 are respectively connected to at least one processor 701;

[0124] Memory 702 stores instructions executed by the computer;

[0125] At least one processor 701 executes computer execution instructions stored in memory 702, causing at least one processor 701 to perform the cleanliness detection method described above.

[0126] The specific implementation process of processor 701 can be found in the above method embodiments, and its implementation principle and technical effect are similar. It will not be repeated here.

[0127] In the above Figure 7 In the illustrated embodiments, it should be understood that the processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), etc. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in this invention can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules within the processor.

[0128] The memory may include random access memory (RAM) and may also include non-volatile memory (NVM), such as at least one disk storage device.

[0129] The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be categorized as address buses, data buses, control buses, etc. For ease of illustration, the buses shown in the accompanying drawings are not limited to a single bus or a single type of bus.

[0130] This application also provides a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, implement the cleanliness detection method described above.

[0131] The aforementioned computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0132] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the device.

[0133] The division of units described herein is merely a logical functional division. 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. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0134] 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 can be selected to achieve the purpose of this embodiment according to actual needs.

[0135] In addition, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0136] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several 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 methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0137] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0138] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A method for detecting cleanliness, characterized in that, The method is applied to an air conditioner, which includes an indoor heat exchanger, an outdoor heat exchanger, and a drain pipe. One side of the drain pipe is connected to the bottom of the indoor heat exchanger, and the other side is connected to the top of the outdoor heat exchanger. A weight sensor is installed at the bottom inside the outdoor heat exchanger. When the air conditioner is in cooling mode, it controls the drain pipe to drip condensate water downwards according to a preset cycle so that the condensate water flows through the fins in the outdoor heat exchanger and the timing starts when the first drop of condensate water falls. When the weight sensor receives condensate, the timing ends, and the actual dripping time and / or the actual weight of the condensate received by the weight sensor are obtained. The dust adhesion status of the fins is determined based on the actual dripping time and / or the actual weight.

2. The method according to claim 1, characterized in that, The step of determining the dust adhesion status of the fins based on the dripping duration includes: Obtain the pre-stored standard dripping time and calculate the first difference between the actual dripping time and the standard dripping time, wherein the standard dripping time is the dripping time of condensate when the fins are in a clean state; Determine whether the first difference is greater than a preset time difference; If so, it confirms that there is a large amount of dust adhering to the surface of the fins; If not, then it is confirmed that there is a small amount of dust adhering to the surface of the fins.

3. The method according to claim 1, characterized in that, Determining the dust adhesion status of the fins based on the actual weight includes: Obtain the pre-stored standard weight and calculate the second difference between the standard weight and the actual weight, wherein the standard weight is the weight of condensate dripping from the fins when they are in a clean state; Determine whether the second difference is greater than a preset weight difference; If so, it confirms that there is a large amount of dust adhering to the surface of the fins; If not, then it is confirmed that there is a small amount of dust adhering to the surface of the fins.

4. The method according to claim 1, characterized in that, The step of determining the dust adhesion status of the fins based on the actual dripping time and the actual weight includes: When the actual dripping time is greater than the preset time and the actual weight is greater than the preset weight, the actual dripping time and actual weight of the newly dripping condensate will continue to be obtained. When the number of times the actual dripping time exceeds the preset time reaches the preset number, or the number of times the actual weight exceeds the preset weight reaches the preset number, it is determined that a large amount of dust is attached to the fin surface.

5. The method according to any one of claims 2 to 4, characterized in that, After determining that a large amount of dust adheres to the fin surface, the method further includes: Control the drain pipe to stop dripping condensate, activate the self-cleaning mode to clean the fins, and deactivate the self-cleaning mode after a preset time.

6. The method according to claim 2, characterized in that, After determining that a large amount of dust adheres to the fin surface, the method further includes: Activate the self-cleaning mode to clean the fins; The self-cleaning mode is turned off when the actual dripping time is determined to be small amount of dust on the fin surface.

7. The method according to claim 3, characterized in that, After determining that a large amount of dust adheres to the fin surface, the method further includes: Activate the self-cleaning mode to clean the fins; The self-cleaning mode is turned off when the actual weight is measured and it is determined that there is a small amount of dust on the fin surface.

8. A cleanliness testing device, characterized in that, Applied to an air conditioner, the air conditioner includes an indoor heat exchanger, an outdoor heat exchanger, and a drain pipe. One side of the drain pipe is connected to the bottom of the indoor heat exchanger, and the other side of the drain pipe is connected to the top of the outdoor heat exchanger. A weight sensor is installed at the bottom inside the outdoor heat exchanger. The cleanliness detection device includes: The first processing module is used to control the drain pipe to drip a preset weight of condensate water downwards according to a preset cycle when the air conditioner is running in cooling mode, so that the condensate water flows through the fins in the indoor heat exchanger, and to start timing when the first drop of condensate water drips. The second processing module is used to stop the timing and obtain the actual dripping time when the weight sensor receives condensate. The third processing module is used to determine the dust adhesion status of the fins based on the actual dripping time.

9. An air conditioner, characterized in that, The air conditioner includes an indoor heat exchanger, an outdoor heat exchanger, and a drain pipe. One side of the drain pipe is connected to the bottom of the indoor heat exchanger, and the other side of the drain pipe is connected to the top of the outdoor heat exchanger. A weight sensor is provided at the bottom inside the outdoor heat exchanger. The air conditioner also includes at least one processor and a memory. The drain pipe is used to discharge the condensate produced by the indoor heat exchanger to the outdoor heat exchanger. The weight sensor is used to obtain the weight of the condensate dripping from the outdoor heat exchanger; The drain pipe and the weight sensor are respectively connected to the at least one processor; The memory stores computer-executed instructions; The at least one processor executes computer execution instructions stored in the memory, causing the at least one processor to perform the cleanliness detection method as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the cleanliness detection method as described in any one of claims 1 to 7.

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