Air conditioner, cleanliness detection method and device and medium

Abstract

The invention relates to an air conditioner, a cleanliness detection method and device and a medium. The method is applied to the air conditioner, the air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger and a drainage pipe, one side of the drainage pipe is connected to the bottom of the indoor heat exchanger, the other side of the drainage pipe is connected to the top of the outdoor heat exchanger, and a weight sensor is arranged at the bottom of the inner side of the outdoor heat exchanger. According to a preset period, a drainage pipe is controlled to drop condensate water downwards, so that the condensate water flows through fins in the outdoor heat exchanger, and timing is started when the first drop of condensate water drops; when the weight sensor receives the condensate water, timing is ended, and the actual dripping time and / or the actual weight of the condensate water received by the weight sensor are / is obtained; and according to the actual dripping duration and / or the actual weight, the dust attachment condition of the fins is determined. According to the method, the condensate 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 dripping duration and / or weight of the condensate water.

Description

Technical Field

[0001] The present application belongs to the field of intelligent electrical appliances, and specifically relates to an air conditioner and cleanliness detection method, device and medium. Background Art

[0002] With the improvement of the intelligence level of air conditioners and people's quality of life, people have put forward higher and higher requirements for the use of air conditioners. For example, after the air conditioner has been working for a long time, the self-cleaning mode is turned on to remove dust attached to the internal components of the air conditioner, mainly the fins of the outdoor heat exchanger, thereby providing people with a clean and comfortable environment.

[0003] In the prior art, air conditioners generally measure the cleanliness of the fins based on the accumulated running time, so that the self-cleaning mode is automatically turned on after a preset time, or the self-cleaning function is turned on by the user when needed.

[0004] However, whether the self-cleaning mode is turned on based on the accumulated running time or the user operates it by themselves, it is impossible to accurately know the dust adhesion situation inside the outdoor heat exchanger, and thus it is impossible to determine whether the self-cleaning mode should be turned on at the moment, and accurate dust removal cannot be achieved. Summary of the invention

[0005] In order to solve the above-mentioned problems in the prior art, that is, to accurately know the current dust adhesion situation of the outdoor heat exchanger so as to activate the self-cleaning mode for precise dust removal, the present application provides an air conditioner and cleanliness detection method, device and medium.

[0006] In a first aspect, the present application provides a cleanliness detection method, which is applied to an air conditioner, wherein the air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger and a drain pipe, wherein 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, and a weight sensor is provided at the bottom of the inner side of the outdoor heat exchanger, and the method comprises:

[0007] When the air conditioner is in cooling mode, the drain pipe is controlled to drip condensed water downward according to a preset cycle so that the condensed water flows through the fins in the outdoor heat exchanger, and the timing starts when the first drop of condensed water drips;

[0008] When the weight sensor receives condensed water, the timing is ended, and the actual dripping time and / or the actual weight of the condensed water received by the weight sensor is obtained;

[0009] The dust adhesion condition of the fin is determined according to the actual dripping time and / or the actual weight.

[0010] In a possible implementation, determining the dust adhesion condition of the fin according to the dripping time includes:

[0011] Obtaining a pre-stored standard dripping time, and calculating a first difference between the actual dripping time and the standard dripping time, wherein the standard dripping time is the dripping time of condensed water when the fin is in a clean state;

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

[0013] If so, it is determined that there is a lot of dust attached to the fin surface;

[0014] If not, it is determined that there is a small amount of dust attached to the fin surface.

[0015] In a possible implementation, determining the dust adhesion condition of the fin according to the actual weight includes:

[0016] Obtaining a pre-stored standard weight, and calculating a second difference between the standard weight and the actual weight, wherein the standard weight is the dripping weight of condensed water when the fin is in a clean state;

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

[0018] If so, it is determined that there is a lot of dust attached to the fin surface;

[0019] If not, it is determined that there is a small amount of dust attached to the fin surface.

[0020] In a possible implementation, determining the dust adhesion condition of the fin according to 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, continue to obtain the actual dripping time and actual weight of the newly dripped condensed water;

[0022] When the number of times that the actual dripping duration is greater than the preset duration accumulates to a preset number, or the number of times that the actual weight is greater than the preset weight accumulates to a preset number, it is determined that a large amount of dust is attached to the surface of the fin.

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

[0024] The drain pipe is controlled to stop dripping condensed water downward, a self-cleaning mode is turned on to clean the fins, and the self-cleaning mode is turned off after a preset time.

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

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

[0027] The actual dripping time is continuously obtained until it is determined that a small amount of dust is attached to the surface of the fin according to the actual dripping time, and then the self-cleaning mode is turned off.

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

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

[0030] The actual weight is continuously obtained until it is determined according to the actual weight that a small amount of dust is attached to the surface of the fin, and then the self-cleaning mode is turned off.

[0031] In a second aspect, the present application provides a cleanliness detection device, which is applied to an air conditioner, wherein the air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger and a drain pipe, wherein 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, and a weight sensor is provided at the bottom of the inner side of the outdoor heat exchanger. The cleanliness detection device comprises:

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

[0033] A second processing module is used to end the timing and obtain the actual dripping time when the weight sensor receives the condensed water;

[0034] The third processing module is used to determine the dust adhesion condition of the fin according to the actual dripping time.

[0035] In a third aspect, the present application provides an air conditioner, the air conditioner comprising 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, a weight sensor is provided at the bottom of the inner side of the outdoor heat exchanger, and the air conditioner further comprises at least one processor and a memory;

[0036] The drain pipe is used to discharge the condensed water generated by the indoor heat exchanger to the outdoor heat exchanger;

[0037] The weight sensor is used to obtain the weight of condensed water 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-executable instructions;

[0040] At least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the cleanliness detection method as described above.

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

[0042] The air conditioner and cleanliness detection method, device and medium provided in the present application are applied to an air conditioner, wherein the air conditioner includes an indoor heat exchanger, an outdoor heat exchanger and a drain pipe, wherein 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, and a weight sensor is arranged at the bottom of the inner side of the outdoor heat exchanger. The method comprises: when the air conditioner is operating in a cooling mode, controlling the drain pipe to drip condensed water downward according to a preset cycle so that the condensed water flows through the fins in the outdoor heat exchanger, and starting timing when the first drop of condensed water drips; when the weight sensor receives the condensed water, ending timing, and obtaining the actual dripping time and / or the actual weight of the condensed water received by the weight sensor; and determining the dust adhesion condition of the fins according to the actual dripping time and / or the actual weight.

[0043] In the above method, the condensed water generated by the indoor heat exchanger in the cooling mode is discharged into the outdoor heat exchanger, so that the condensed water flows through the fins in the outdoor heat exchanger. When dust adheres to the surface of the fins, the condensed water will adhere to the dust, thereby slowing down the downward flow rate of the condensed water. Therefore, by obtaining the dripping time and / or dripping weight of the condensed water dripping 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. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0045] Figure 1 A schematic diagram of a scenario of an air conditioner provided in an embodiment of the present application;

[0046] Figure 2 A process of a cleanliness detection method provided in the embodiment of the present application Figure 1 ;

[0047] Figure 3 A process of a cleanliness detection method provided in the embodiment of the present application Figure 2 ;

[0048] Figure 4 A process of a cleanliness detection method provided in the embodiment of the present application Figure 3;

[0049] Figure 5 A process of a cleanliness detection method provided in the embodiment of the present application Figure 4 ;

[0050] Figure 6 A schematic diagram of the structure of a cleanliness detection device provided by an embodiment of the present invention;

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

[0052] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0054] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein, for example.

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

[0056] With the development of science and technology and the improvement of people's quality of life, people are using smart air conditioners more and more frequently. Smart air conditioners generally include indoor heat exchangers, outdoor heat exchangers and compressors. Among them, the outdoor heat exchanger slot is installed outdoors and is lower than the indoor heat exchanger. Therefore, the fins placed vertically inside the outdoor heat exchanger are easily attached with dust. When a large amount of dust accumulates on the surface of the fins, it will seriously affect the working quality and efficiency of the outdoor heat exchanger. In the prior art, the self-cleaning mode is automatically turned on by roughly judging the cleanliness of the fins based on the accumulated working time of the outdoor heat exchanger, or the user actively turns on the cleaning.

[0057] However, based on the accumulated running time or the user's own operation, it is impossible to accurately know the dust adhesion status of the fins in the outdoor heat exchanger, and thus it is impossible to determine whether it is necessary to turn on the cleaning mode at the moment, and accurate dust removal cannot be achieved.

[0058] Therefore, the present application proposes a method for detecting the cleanliness of the fins of an outdoor heat exchanger, which mainly discharges the condensed water generated by the indoor heat exchanger in the cooling mode into the outdoor heat exchanger through a drain pipe, so that the condensed water 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 consumed by the entire dripping process of the condensed water and / or the weight of the condensed water dripping to the bottom of the outdoor heat exchanger, and comparing them with the corresponding preset values, it can be known whether the condensed water is affected by the dust attached to the surface of the fin during the dripping process.

[0059] Combine the following Figure 1 , the application scenarios of this application are described.

[0060] Figure 1 A schematic diagram of an air conditioner scene provided in an embodiment of the present 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 of the drain pipe 103 is connected to the top of the outdoor heat exchanger 102. A weight sensor 104 is provided at the bottom of the inner side of the outdoor heat exchanger 102, and a fin 105 is provided inside the outdoor heat exchanger 102. In addition, the installation position and connection relationship of the fin 105 in the outdoor heat exchanger 102 are both prior arts, and this application will not elaborate on them.

[0061] The weight sensor 104 is a device that converts a mass signal into a measurable electrical signal output, and 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 condensed water dripping onto the surface of the weight sensor 104 .

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

[0063] When the air conditioner is running in cooling mode, the surface temperature of the indoor heat exchanger 101 is low, and the indoor hot air will condense on the indoor heat exchanger 101 when it is cooled, generating condensed water. At this time, the drain pipe 103 can be controlled to drip the condensed water downward according to a preset cycle. When the fins 105 are in a clean state, the dripping of the condensed water will not be affected by other factors, and the dripping time and dripping weight at this time can be used as the standard dripping time and standard weight. When dust is attached to the surface of the fins 105, the dust will catch the condensed water dripping from the top, thereby slowing down the dripping speed of the condensed water and reducing the dripping weight of the condensed water. At this time, the condensed water may need to gather multiple drops of condensed water to drip onto the surface of the weight sensor 104. Therefore, the actual dripping time and dripping weight will change greatly.

[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 the actual weight exceeds the standard dripping time and / or the 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 attachment is serious and needs to be cleaned in time.

[0065] To implement the above solution, it is necessary to control the frequency of condensed water dripping downward in the drain pipe 103. A solenoid valve can be provided at the drain outlet of the drain pipe 103 to control the discharge of condensed water by controlling the opening and closing of the solenoid valve. Of course, other devices can also be used to control the drainage frequency of the drain pipe 103. In addition, in order to avoid a large amount of condensed water accumulating in the drain pipe 103, a drainage branch can be added at the top of the drain pipe 103. When the height of the condensed water in the drain pipe 103 reaches the drainage branch outlet, it is promptly discharged from the outdoor heat exchanger 102 through the drainage branch.

[0066] The cooperation between the above-mentioned devices not only facilitates the detection of whether there is dust attached to the surface of the fin, but also can determine the impact of the current dust on the condensed water dripping process.

[0067] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be implemented independently or in combination with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0068] Figure 2 A process of a cleanliness detection method provided in the embodiment of the present application Figure 1 .like Figure 2 As shown, the method is 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, and a weight sensor is provided at the bottom of the inner side of the outdoor heat exchanger. The method includes:

[0069] S201. When the air conditioner is running in cooling mode, the drain pipe is controlled to drip condensed water downward according to a preset cycle so that the condensed water flows through the fins in the outdoor heat exchanger, and the timing starts when the first drop of condensed water drips.

[0070] In the above scheme, when the air conditioner is cooling, the surface temperature of the indoor heat exchanger is low, and the indoor hot air will condense when it encounters cold, thereby generating condensed water on the surface of the indoor heat exchanger. The condensed water will collect and flow into the drain pipe. Since the discharge port of the drain pipe is set at the top of the outdoor heat exchanger, the condensed water will flow through the fins when dripping downwards, and the cleanliness of the fin surface will affect the dripping process of the condensed water. In order to clearly understand the impact of different cleanliness levels, the entire dripping process of the condensed water needs to be recorded, which can be the dripping time or the dripping weight.

[0071] S202: When the weight sensor receives condensed water, the timing is ended, and the actual dripping time and / or the actual weight of the condensed water received by the weight sensor is obtained.

[0072] In this step, the timing starts when water drips downward from the drain pipe, and ends when the condensed water drops onto the weight sensor. The time from the beginning to the end is the dripping time of the condensed water in the outdoor heat exchanger. Due to the presence of the fins, the condensed water will partially adhere to the fins and the dust on the surface of the fins during the entire dripping process. Therefore, the weight of the condensed water will also change before and after dripping. The actual weight obtained by the weight sensor is the weight of the condensed water after the dripping process is completed.

[0073] S203: Determine the dust adhesion condition of the fin according to the actual dripping time and / or the actual weight.

[0074] In the above scheme, the actual dripping time and the actual weight can both reflect the dripping of condensed water in the outdoor heat exchanger. When the fin surface is completely clean, the condensed water will not be affected by dust during the dripping process. When there is dust on the fin surface, the dust will not only affect the dripping speed of the condensed water, but also hang a certain weight of water. The more dust there is, the greater the impact on the condensed water. Therefore, by the actual dripping time and / or the actual weight, it is possible to know whether there is dust on the fin surface and the approximate amount of dust attached.

[0075] In an embodiment of the present application, the condensed water generated by the indoor heat exchanger is discharged into the outdoor heat exchanger through a drain pipe, and the condensed water is controlled to drip downward and flow through the fins according to a preset period, so that the actual dripping time and actual weight of the condensed water dripping process can be obtained. By comparing with the corresponding standard values ​​when the fins are in a fully crystallized state, the cleanliness of the fin surface can be known.

[0076] Combine the following Figure 3 The specific embodiments illustrate the implementation process of determining the dust adhesion condition of the fins according to the dripping time in the cleanliness detection method of the present application.

[0077] Figure 3 A process of a cleanliness detection method provided in the embodiment of the present application Figure 2 .like Figure 3 As shown, the method includes:

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

[0079] In this step, the standard dripping time is the time required for condensed water to drip from the top of the outdoor heat exchanger to the bottom when the fins are completely clean. When dust adheres to the surface of the fins, the condensed water will be affected by the dust and the flow rate will slow down, resulting in a longer dripping time. By taking the difference between the actual dripping time and the standard dripping time, we can know the impact of dust on the dripping process of condensed water.

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

[0081] In the above scheme, the first difference can reflect 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 condensed water dripping process. The preset time difference can be used as a dividing line for the size of the dust impact. By comparing the size relationship between the first difference and the preset time difference, we can roughly know the amount of dust attached to the fin surface, and then determine the appropriate time to start the cleaning mode.

[0082] S303: If yes, it is determined that a large amount of dust is attached to the surface of the fin;

[0083] S304: If not, determine that a small amount of dust is attached to the surface of the fin.

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

[0085] In the specific implementation process, after determining that a large amount of dust is attached to the surface of the fin, the cleaning mode can be turned on for cleaning, and the cleaning mode can be turned off according to the subsequent dripping of condensed water. 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 fin according to the actual dripping time, and then the self-cleaning mode is turned off.

[0086] In an embodiment of the present application, by comparing the dripping time spent by condensed water in the outdoor heat exchanger with the standard dripping time when the fins are completely clean, the difference between the two is obtained to clarify the difference between the actual dripping time and the standard dripping time, and when the difference is greater than the preset time difference, that is, the difference is large, it is determined that a large amount of dust is attached to the surface of the fin.

[0087] Combine the following Figure 4 The specific embodiments illustrate the implementation process of determining the dust adhesion condition of the fins according to the actual weight in the cleanliness detection method of the present application.

[0088] Figure 4 A process of a cleanliness detection method provided in the embodiment of the present application Figure 2 .like Figure 4 As shown, the method includes:

[0089] S401. 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 dripping weight of condensed water when the fin is in a clean state.

[0090] In this step, the standard weight is the weight of the condensed water after it drips from the top of the outdoor heat exchanger to the bottom when the fins are completely clean. When dust adheres to the fin surface, the condensed water will be affected by the dust and part of the condensed water will be caught, causing the weight of the condensed water to continuously decrease during the dripping process, and even fail to drip to the bottom of the outdoor heat exchanger. This requires multiple drops of condensed water to converge before they can successfully drip onto the weight sensor. By calculating the difference between the standard weight and the actual weight, we can know the impact of dust on the condensed water dripping process.

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

[0092] In the above scheme, the second difference can reflect the difference between the standard weight and the actual weight. The larger the second difference is, the greater the difference between the two is, and the greater the impact of dust on the condensed water dripping process is. The preset weight difference can be used as a dividing line for the size of the dust impact. By comparing the size relationship between the second difference and the preset weight difference, it is possible to roughly know how much dust is attached to the fin surface, and then determine the appropriate time to start the cleaning mode.

[0093] S403: If yes, it is determined that a large amount of dust is attached to the surface of the fin;

[0094] S404: If not, determine that a small amount of dust is attached to the surface of the fin.

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

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

[0097] In an embodiment of the present application, the actual weight of condensed water after 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, that is, the difference is large, it is determined that a large amount of dust is attached to the surface of the fin.

[0098] Combine the following Figure 5 The specific embodiments illustrate the implementation process of determining the dust adhesion condition of the fins according to the actual dripping time and the actual weight in the cleanliness detection method of the present application.

[0099] Figure 5 A process of a cleanliness detection method provided in the embodiment of the present application 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 dripped condensed water.

[0101] In this step, the preset duration and the preset weight may be the corresponding values ​​when dust begins to affect the operation of the fins or when dust has a greater 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 means 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 the actual weight exceed the corresponding preset values ​​may be counted, and the cleaning mode may be turned on only when the number accumulates to a certain level, so as to avoid frequently turning on the cleaning mode and affecting the normal operation of the refrigeration mode.

[0102] S502: When the number of times that the actual dripping duration is greater than the preset duration accumulates to a preset number, or the number of times that the actual weight is greater than the preset weight accumulates to a preset number, it is determined that a large amount of dust is attached to the surface of the fin.

[0103] In the above scheme, as long as one of the variables, the actual dripping time and the actual weight, exceeds the corresponding preset value for a number of times accumulated to the preset number of times, it means that the amount of dust adhesion is already large and affects the normal operation of the fins.

[0104] In one embodiment, based on the above embodiment, the dust adhesion condition 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 the preset time difference and the second difference between the standard weight and the actual weight is greater than the preset weight difference, the actual dripping time and the actual weight of the newly dripped condensed water continue to be obtained; when the number of times the first difference is greater than the preset time difference accumulates to the preset number of times, or the number of times the second difference is greater than the preset weight difference accumulates to the preset number of times, it is determined that a large amount of dust is attached to the fin surface.

[0105] In an embodiment of the present application, by accumulating the number of times that the actual dripping duration and the actual weight exceed the corresponding preset values, and when the number of times one of the variables exceeds the corresponding preset value accumulates to the preset number of times, 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 of times, thereby avoiding frequent cleaning caused by cleaning as long as the actual dripping duration or the actual weight exceeds the corresponding preset value.

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

[0107] In summary, the cleanliness detection method provided in the embodiments of the present application discharges the condensed water generated by the indoor heat exchanger in the cooling mode into the outdoor heat exchanger, so that the condensed water flows through the fins in the outdoor heat exchanger. When dust adheres to the surface of the fins, the condensed water will adhere to the dust, thereby slowing down the downward flow rate of the condensed water. Therefore, by obtaining the dripping time and / or dripping weight of the condensed water dripping 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 A schematic diagram of the structure of a cleanliness detection device provided by an embodiment of the present invention is shown in FIG. 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, and a weight sensor is provided 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, and any functional module may 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 condensed water downward according to a preset cycle when the air conditioner is running in a cooling mode, so that the condensed water flows through the fins in the indoor heat exchanger, and start timing when the first drop of condensed water drips;

[0111] The second processing module 602 is used to end the timing and obtain the actual dripping time when the weight sensor receives the condensed water;

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

[0113] Optionally, the third processing module 603 can also be used to obtain a pre-stored standard dripping time, and calculate a first difference between the actual dripping time and the standard dripping time, wherein the standard dripping time is the dripping time of condensed water 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 surface of the fin; if not, determine that a small amount of dust is attached to the surface of the fin.

[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 dripping weight of condensed water when the fin is in a clean state; determine whether the second difference is greater than a preset weight difference; if so, determine that a large amount of dust is attached to the surface of the fin; if not, determine that a small amount of dust is attached to the surface of the fin.

[0115] Optionally, the third processing module 603 can also be used to continue to obtain the actual dripping time and actual weight of newly dripped condensed water when the actual dripping time is greater than the preset time and the actual weight is greater than the preset weight; 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, it is determined that a large amount of dust is attached to the surface of the fin.

[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 fin, control the drain pipe to stop dripping condensed water downward, turn on 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 turn on the self-cleaning mode to clean the fins after determining that a large amount of dust is attached to the surface of the fin; continue to obtain the actual dripping time until it is determined that a small amount of dust is attached to the surface of the fin according to the actual dripping time, and then turn off the self-cleaning mode.

[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 surface of the fin, start the self-cleaning mode to clean the fin; continue to obtain the actual weight until it is determined that a small amount of dust is attached to the surface of the fin according to the actual weight, and then turn off the self-cleaning mode.

[0119] The cleanliness detection device is used to execute the technical solution provided by the above-mentioned cleanliness detection method embodiment. Its implementation principle and technical effect are similar to those in the above-mentioned method embodiment and will not be repeated here.

[0120] Figure 7 The hardware diagram of the air conditioner provided in the embodiment of the present invention is shown in FIG. 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, the memory 702, the drain pipe 703 and the weight sensor 704 are connected via a bus 505.

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

[0122] The weight sensor 704 is used to obtain the weight of the condensed water 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 computer executable instructions;

[0125] At least one processor 701 executes the computer-executable instructions stored in the memory 702, so that at least one processor 701 executes the above cleanliness detection method.

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

[0127] In the above Figure 7 In the illustrated embodiment, it should be understood that the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), etc. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in the invention may be directly implemented as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0128] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (Non-volatile Memory, NVM), such as at least one disk storage.

[0129] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, the bus in the drawings of the present application is not limited to only one bus or one type of bus.

[0130] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When a processor executes the computer-executable instructions, the cleanliness detection method as described above is implemented.

[0131] The computer-readable storage medium mentioned above 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 memory, flash memory, magnetic disk or optical disk. The readable storage medium can be any available medium that can be accessed by a general or special-purpose computer.

[0132] An exemplary readable storage medium is coupled to a processor so that the processor can read information from the readable storage medium 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 be located in an application specific integrated circuit (Application Specific Integrated Circuits, referred to as: ASIC). Of course, the processor and the readable storage medium can also exist in the device as discrete components.

[0133] The division of the units is only a logical function division, and there may be other divisions in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, which may be electrical, mechanical or other forms.

[0134] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0135] In addition, each functional unit in each embodiment of the present invention 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.

[0136] If the functions are implemented in the form of 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 the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0137] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, disk or optical disk and other media that can store program codes.

[0138] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A cleanliness detection method, characterized in that: Applied to an 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, a weight sensor is provided at the bottom of the inner side of the outdoor heat exchanger, and the method comprises: When the air conditioner is in cooling mode, the drain pipe is controlled to drip condensed water downward according to a preset cycle so that the condensed water flows through the fins in the outdoor heat exchanger, and the timing starts when the first drop of condensed water drips; When the weight sensor receives condensed water, the timing is ended, and the actual dripping time and / or the actual weight of the condensed water received by the weight sensor is obtained; The dust adhesion condition of the fin is determined according to 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 condition of the fin according to the dripping time includes: Obtaining a pre-stored standard dripping time, and calculating a first difference between the actual dripping time and the standard dripping time, wherein the standard dripping time is the dripping time of condensed water when the fin is in a clean state; Determining whether the first difference is greater than a preset time difference; If so, it is determined that there is a lot of dust attached to the fin surface; If not, it is determined that there is a small amount of dust attached to the fin surface.

3. The method according to claim 1, characterized in that Determining the dust adhesion condition of the fin according to the actual weight includes: Obtaining a pre-stored standard weight, and calculating a second difference between the standard weight and the actual weight, wherein the standard weight is the dripping weight of condensed water when the fin is in a clean state; Determining whether the second difference is greater than a preset weight difference; If so, it is determined that there is a lot of dust attached to the fin surface; If not, it is determined that there is a small amount of dust attached to the fin surface.

4. The method according to claim 1, characterized in that: The determining the dust adhesion condition of the fin according to 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, continue to obtain the actual dripping time and actual weight of the newly dripped condensed water; When the number of times that the actual dripping duration is greater than the preset duration accumulates to a preset number, or the number of times that the actual weight is greater than the preset weight accumulates to a preset number, it is determined that a large amount of dust is attached to the surface of the fin.

5. The method according to any one of claims 2 to 4, characterized in that: After determining that a large amount of dust is attached to the surface of the fin, the method further includes: The drain pipe is controlled to stop dripping condensed water downward, a self-cleaning mode is turned on to clean the fins, and the self-cleaning mode is turned off after a preset time.

6. The method according to claim 2, characterized in that After determining that a large amount of dust is attached to the surface of the fin, the method further includes: Turning on the self-cleaning mode 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 fin according to the actual dripping time, and then the self-cleaning mode is turned off.

7. The method according to claim 3, characterized in that After determining that a large amount of dust is attached to the surface of the fin, the method further includes: Turning on the self-cleaning mode to clean the fins; The actual weight is continuously obtained until it is determined according to the actual weight that a small amount of dust is attached to the surface of the fin, and then the self-cleaning mode is turned off.

8. A cleanliness detection 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 provided at the bottom of the inner side of the outdoor heat exchanger. The cleanliness detection device includes: A first processing module is used to control the drain pipe to drip a preset weight of condensed water downward according to a preset cycle when the air conditioner is running in a cooling mode, so that the condensed water flows through the fins in the indoor heat exchanger, and start timing when the first drop of condensed water drips; A second processing module is used to end the timing and obtain the actual dripping time when the weight sensor receives the condensed water; The third processing module is used to determine the dust adhesion condition of the fin according to the actual dripping time.

9. An air conditioner, characterized in that: 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, and the other side of the drain pipe is connected to the top of the outdoor heat exchanger, a weight sensor is arranged at the bottom of the inner side of the outdoor heat exchanger, and the air conditioner further comprises at least one processor and a memory; The drain pipe is used to discharge the condensed water generated by the indoor heat exchanger to the outdoor heat exchanger; The weight sensor is used to obtain the weight of condensed water 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-executable instructions; The at least one processor executes the computer-executable instructions stored in the memory, so that the at least one processor executes the cleanliness detection method according to any one of claims 1 to 7.

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

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