Air conditioner outdoor unit cleaning method, device and system and air conditioner

Abstract

The invention discloses an air conditioner outdoor unit cleaning method, device and system and an air conditioner, and belongs to the field of air conditioner cleaning. The method comprises the following steps: firstly, acquiring the networking condition of the air conditioner, acquiring real-time weather when the air conditioner is always networked, then determining a smudginess value according to the real-time weather, and when the smudginess value is greater than or equal to a preset smudginess value, controlling an outdoor unit of the air conditioner to start self-cleaning and resetting the smudginess value. Under the networking condition, only the air quality and the air humidity need to be obtained through the network, the smudginess degree of the outdoor unit can be determined based on the air quality and the air humidity, then whether self-cleaning is started or not is determined, a sensor does not need to be additionally installed, it is guaranteed that the air conditioner outdoor unit can be cleaned in time, and meanwhile additional cost does not need to be increased.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioner cleaning, and in particular, to a method, device, system and air conditioner for cleaning an outdoor unit of an air conditioner. Background Art

[0002] With the continuous improvement of living standards and the continuous growth of user needs, based on the rapid development of chip computing power, existing houses have become more and more intelligent. Under the continuous impact of Internet of Things technology, smart home systems have become a very popular home system for users. People can build smart home scenes based on smart home devices, thereby realizing the linkage control of smart home devices.

[0003] After the air conditioner is placed or used for a long time, a large amount of dust will accumulate on the outdoor unit compared to the indoor unit of the air conditioner. The dust accumulation rate is significantly higher than that of the indoor unit. These dusts adhere to the heat exchanger of the outdoor unit, which will reduce the heat exchange performance of the heat exchanger, resulting in a decrease in the performance of the air conditioner and an increase in energy consumption. In addition, existing data show that in cities, the dust concentration varies between different floors, which will also lead to different degrees of dust accumulation in the outdoor heat exchanger between different floors. Therefore, a control method and device are needed to clean the outdoor units of air conditioners in different areas in a timely manner.

[0004] In the prior art, the cleaning methods of air conditioners include manual cleaning and self-cleaning of the air conditioner. Manual cleaning is time-consuming and labor-intensive, and the outdoor unit is usually placed in high-altitude areas such as exterior walls, which increases the work risks of cleaning staff. Therefore, most outdoor units now use self-cleaning mode, and the self-cleaning mode of the outdoor unit usually requires the user to manually turn it on, which easily leads to a waste of corresponding functional resources.

[0005] In this regard, the patent with patent number CN108413572B executes the corresponding self-cleaning mode for the outdoor unit by judging the difference between the fan current of the outdoor unit, the exhaust temperature of the compressor and the return air temperature of the compressor and the standard value. However, the current of the outdoor fan and the suction and discharge temperature of the compressor are affected by many factors, such as ambient temperature, refrigerant quantity, dust accumulation degree of the heat exchanger, etc., so misjudgment is easy to occur.

[0006] Patent number CN103206764B determines whether the pressure difference between the windward and leeward sides of the outdoor heat exchanger exceeds a preset value to determine the dirtiness or blockage of the outdoor heat exchanger of the air conditioner and whether the unit has turned on the outdoor self-cleaning function. However, different fan speeds, outer ring temperatures, altitudes, etc. will correspond to different pressure difference values. Therefore, in order to determine when to turn on the outdoor self-cleaning function based on the pressure difference between the windward and leeward sides, different preset values ​​need to be set for different areas, which is not conducive to the universalization of the program.

[0007] In addition, when realizing the self-cleaning function of the outdoor unit in the current existing technology, it is necessary to add various sensors, such as air volume, pressure, optical sensors, etc., to the indoor and outdoor units of the air conditioner, which will inevitably increase too much additional cost. Summary of the invention

[0008] In order to overcome the shortcomings of the prior art, the present application provides an air conditioner outdoor unit cleaning method, device, system and air conditioner to solve the problem that when realizing the self-cleaning function of the outdoor unit in the current prior art, it is necessary to add various sensors to the indoor and outdoor units of the air conditioner, such as air volume, pressure, optical sensors, etc., which will inevitably increase excessive additional costs.

[0009] The technical solution adopted by this application to solve its technical problem is:

[0010] In a first aspect, a method for cleaning an outdoor unit of an air conditioner is provided, comprising:

[0011] Get the network status of the air conditioner;

[0012] When the air conditioner is always connected to the network, real-time weather is obtained, wherein the real-time weather includes air quality and air humidity;

[0013] Determine a dirtiness value based on the air quality and the air humidity, the dirtiness value being used to characterize a dirtiness degree of an outdoor unit of an air conditioner;

[0014] When the dirtiness value is greater than or equal to a preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning and the dirtiness value is reset to zero.

[0015] Further, the determining of the dirtiness value based on the air quality and the air humidity includes:

[0016] Get the sampling interval time for each day;

[0017] The dirtiness value is determined based on the daily sampling interval, the air quality and the air humidity; the calculation formula is as follows:

[0018]

[0019] Among them, Q is the dirtiness value, t is the daily sampling interval, n is the total number of sampling times, i is the i-th sampling, P i is the air quality, RH i For air humidity.

[0020] Furthermore, it also includes:

[0021] When the air conditioner is always disconnected from the network, obtain the disconnection duration;

[0022] When the network disconnection duration is greater than or equal to the preset network disconnection duration, the air-conditioning outdoor unit is controlled to start self-cleaning, and the dirtiness value is reset to zero.

[0023] Furthermore, it also includes:

[0024] When the air conditioner is first connected to the Internet and then disconnected from the Internet, real-time weather obtained when the Internet is connected is obtained, and future weather obtained before the Internet is disconnected is obtained, wherein the future weather is the predicted air quality and air humidity when the Internet is disconnected obtained before the Internet is disconnected;

[0025] Determine an online dirtiness value based on the real-time weather and determine an offline dirtiness value based on the future weather;

[0026] When the sum of the online dirtiness value and the offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0027] Furthermore, it also includes:

[0028] When the sum of the online dirtiness value and the offline dirtiness value is less than the preset dirtiness value and the air conditioner is online again after being offline; obtaining the historical weather when the network was disconnected, wherein the historical weather includes the air quality and air humidity when the network was disconnected;

[0029] Correcting the disconnection pollution value based on the historical weather, and continuing to obtain the connection pollution value;

[0030] When the sum of the online dirtiness value and the corrected offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0031] Furthermore, it also includes:

[0032] When the air conditioner is disconnected from the Internet first and then connected to the Internet, the duration of disconnection and the real-time weather when the air conditioner is connected to the Internet are obtained;

[0033] The real-time weather calculation network dirtiness value;

[0034] Determine a first dirtiness value according to the network disconnection duration and the network dirtiness value; first dirtiness value=(network disconnection duration+network connection duration) / network connection duration*network dirtiness value;

[0035] When the first dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the first dirtiness value is reset to zero.

[0036] Furthermore, it also includes:

[0037] When the air conditioner is disconnected from the network first and then connected to the network, the real-time weather when connected to the network and the historical weather when disconnected from the network are obtained, wherein the historical weather includes the air quality and air humidity when disconnected from the network;

[0038] Calculate the offline pollution value based on the historical weather, and calculate the online pollution value based on the real-time weather;

[0039] When the sum of the online dirtiness value and the offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0040] In a second aspect, a cleaning device for an air conditioner outdoor unit is provided, comprising:

[0041] A network status acquisition module is used to obtain the network status of the air conditioner;

[0042] A real-time weather acquisition module, which acquires real-time weather when the air conditioner is always connected to the Internet, wherein the real-time weather includes air quality and air humidity;

[0043] a dirtiness value calculation module, used to determine a dirtiness value based on the air quality and the air humidity, wherein the dirtiness value is used to characterize the dirtiness degree of the air conditioner outdoor unit;

[0044] The self-cleaning start module is used to control the air conditioner outdoor unit to start self-cleaning and reset the dirt value when the dirt value is greater than or equal to a preset dirt value.

[0045] In a third aspect, a cleaning system for an air conditioner outdoor unit is provided, comprising:

[0046] at least one processor and at least one memory;

[0047] The memory stores executable instructions of the processor;

[0048] The processor is configured to execute the above-mentioned air conditioner outdoor unit cleaning method.

[0049] In a fourth aspect, an air conditioner is provided, applying the above-mentioned air conditioner outdoor unit cleaning method.

[0050] Beneficial effects:

[0051] The technical solution of the present application provides an air conditioner outdoor unit cleaning method, device, system and air conditioner. First, the network status of the air conditioner is obtained. When the air conditioner is always connected to the network, the real-time weather is obtained, and then the dirtiness value is determined according to the real-time weather. When the dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning and the dirtiness value is reset. When connected to the network, the present application only needs to obtain the air quality and air humidity through the network. Based on the air quality and air humidity, the degree of dirtiness of the outdoor unit can be determined, and then it is determined whether the self-cleaning is started. There is no need to install additional sensors, which ensures that the air conditioner outdoor unit can be cleaned in time without adding additional costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 This is a flow chart of a method for cleaning an outdoor unit of an air conditioner provided in an embodiment of the present application;

[0054] Figure 2 This is a flow chart of a specific method for cleaning an outdoor unit of an air conditioner provided in an embodiment of the present application;

[0055] Figure 3 This is a flow chart of a self-cleaning method for an air conditioner outdoor unit provided in an embodiment of the present application;

[0056] Figure 4 It is a structural schematic diagram of an air conditioner outdoor unit cleaning device provided in an embodiment of the present application;

[0057] Figure 5 It is a structural schematic diagram of an air conditioner outdoor unit cleaning system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application is described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other implementation methods obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0059] Reference Figure 1 , the embodiment of the present application provides a method for cleaning an air conditioner outdoor unit, comprising:

[0060] S11: Get the networking status of the air conditioner; the networking status mainly includes two states: networking and disconnection. However, according to all states in the monitoring time period, it is generally divided into: always connected to the network, always disconnected from the network, first connected to the network and then disconnected from the network, and first disconnected from the network and then connected to the network. In the embodiment of the present application, in the case of first connecting to the network and then disconnecting from the network, it is subdivided into the case of only connecting to the network first and then disconnecting from the network, and first connecting to the network and then disconnecting from the network and then connecting to the network. Of course, in practice, the number of times of connecting to the network and disconnecting from the network within a monitoring time period may include multiple times, but they can all be combined according to the solutions of several situations in this application.

[0061] S12: When the air conditioner is always connected to the Internet, obtain the real-time weather, which includes air quality and air humidity; because the factors affecting the dirtiness of the outdoor unit are mainly related to the air quality and air humidity, when other conditions remain unchanged, the worse the air quality, the more serious the dirtiness. When other conditions remain unchanged, the greater the air humidity, the more serious the dirtiness. Therefore, this application directly quantifies the air humidity and air quality, and determines the degree of dirtiness at the current moment based on their cumulative values. Since this application is applied to the outdoor unit, the air humidity therein refers to the outdoor ambient humidity.

[0062] S13: Determine a dirtiness value based on the air quality and the air humidity, where the dirtiness value is used to characterize a dirtiness degree of the air conditioner outdoor unit.

[0063] In one embodiment, determining the dirtiness value based on the air quality and the air humidity includes:

[0064] The dirtiness value is calculated according to the following formula:

[0065] The calculation formula is as follows:

[0066]

[0067] Among them, Q is the dirtiness value, n is the total number of samplings, i is the i-th sampling, P i is the air quality, RH i For air humidity.

[0068] In another embodiment, determining the dirtiness value based on the air quality and the air humidity includes:

[0069] Get the sampling interval time for each day;

[0070] The dirtiness value is determined based on the daily sampling interval, the air quality and the air humidity; the calculation formula is as follows:

[0071]

[0072] Among them, Q is the dirtiness value, t is the daily sampling interval, n is the total number of sampling times, i is the i-th sampling, P i is the air quality, RHi For air humidity.

[0073] Compared with the above embodiment, the embodiment of the present application calculates the accumulated amount of dirt per day, while the above embodiment basically samples several times a day. In this way, the embodiment of the present application is more accurate.

[0074] S14: When the dirtiness value is greater than or equal to a preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning and the dirtiness value is reset to zero.

[0075] As an optional implementation of the embodiment of the present application, it also includes:

[0076] When the air conditioner is always disconnected from the network, obtain the disconnection duration;

[0077] When the network disconnection duration is greater than or equal to the preset network disconnection duration, the air conditioner outdoor unit is controlled to start self-cleaning, and the dirt value is reset to zero. When the network is disconnected all the time, the weather conditions cannot be obtained, and only a preset period can be set to control cleaning once.

[0078] As an optional implementation of the embodiment of the present application, it also includes:

[0079] When the air conditioner is first connected to the Internet and then disconnected from the Internet, real-time weather obtained when the Internet is connected is obtained, and future weather obtained before the Internet is disconnected is obtained, wherein the future weather is the predicted air quality and air humidity when the Internet is disconnected obtained before the Internet is disconnected;

[0080] The online pollution value is determined based on the real-time weather and the offline pollution value is determined based on the future weather; the specific calculation method of the online pollution value and the offline pollution value is the same as the calculation method of the pollution value given above (two methods are selected or set according to actual needs), and will not be repeated here.

[0081] When the sum of the online dirtiness value and the offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0082] Further, when the sum of the online dirtiness value and the offline dirtiness value is less than the preset dirtiness value and the air conditioner changes from offline to online; obtaining the historical weather when the network was disconnected, the historical weather includes the air quality and air humidity when the network was disconnected;

[0083] Correcting the disconnection pollution value based on the historical weather, and continuing to obtain the connection pollution value;

[0084] When the sum of the online dirtiness value and the corrected offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0085] That is, the network is disconnected for a short time. Since the weather during the network disconnection may be inconsistent with the actual weather, the historical weather is obtained after the network is reconnected, the actual network disconnection pollution value is calculated, and the actual network disconnection pollution value is summed with the network connection pollution value, and then compared with the preset pollution value. If it does not exceed the preset pollution value, the sum at this time will be used as the basis for subsequent calculations of the pollution value.

[0086] In one embodiment, when the air conditioner is disconnected from the network first and then connected to the network, the disconnection duration and the real-time weather when the network is connected are obtained;

[0087] The real-time weather calculation network dirtiness value;

[0088] Determine a first dirtiness value according to the network disconnection duration and the network dirtiness value; first dirtiness value=(network disconnection duration+network connection duration) / network connection duration*network dirtiness value;

[0089] When the first dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the first dirtiness value is reset to zero.

[0090] In another embodiment, when the air conditioner is disconnected from the network first and then connected to the network, the real-time weather when connected to the network and the historical weather when disconnected from the network are obtained, and the historical weather includes the air quality and air humidity when disconnected from the network;

[0091] Calculate the offline pollution value based on the historical weather, and calculate the online pollution value based on the real-time weather;

[0092] When the sum of the online dirtiness value and the offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0093] That is, the scheme of disconnecting from the network first and then connecting to the network can be adopted in either of the above two embodiments, and the specific settings are made according to actual needs.

[0094] The air conditioner outdoor unit cleaning method provided in the embodiment of the present application first obtains the network status of the air conditioner, obtains the real-time weather when the air conditioner is always connected to the network, and then determines the dirtiness value according to the real-time weather. When the dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning and the dirtiness value is reset. In the case of networking, the present application only needs to obtain the air quality and air humidity through the network, and the degree of dirtiness of the outdoor unit can be determined based on the air quality and air humidity, and then determines whether self-cleaning is started. There is no need to install additional sensors, which ensures that the air conditioner outdoor unit can be cleaned in time without adding additional costs.

[0095] The self-cleaning function of the indoor unit and the outdoor unit of the existing household air conditioner products has gradually become a standard feature, but the self-cleaning function of the outdoor unit is easily overlooked by users. In order to improve the utilization efficiency of the self-cleaning function of the outdoor unit of the household air conditioner, the present application provides a specific method for cleaning the outdoor unit of the air conditioner, such as Figure 2 As shown:

[0096] After the air conditioner is powered on, check whether it is connected to the Internet.

[0097] If not, after the air conditioner has accumulated running time D, it will display a code suggesting to turn on the outdoor unit self-cleaning; if yes, obtain the air quality P in the weather forecast at the time of sampling. i and humidity RH i The information of the air conditioner is obtained, and the cumulative running time d of the air conditioner when the network is disconnected is obtained, and the degree of dirtiness of the outdoor heat exchanger is iteratively estimated. The iterative formulas are shown in equations (1) and (2).

[0098] If the air conditioner is never connected to the Internet, the code suggesting turning on the outdoor unit self-cleaning will be displayed after the unit has accumulated running time D.

[0099] If the air conditioner is connected to the Internet after being powered on and running for a period of time d, the running time d is deducted from the preset time D and then the degree of contamination of the heat exchanger Q is iteratively estimated, where d≤D;

[0100] Each time the pollution estimation parameter Q is calculated iteratively, it is compared with the preset pollution degree parameter M. If Q≤M, the air quality P is obtained again after the unit runs for t hours. i and humidity RH i And other information, cumulative iterative calculation;

[0101] Otherwise, a suggestion to start self-cleaning is sent to the user's mobile terminal or a corresponding code is displayed, and the user is asked to confirm whether to start the outdoor unit mode. After the self-cleaning function of the outdoor unit is completed, the program is reset, i=1, and the next cycle is entered.

[0102]

[0103] Explanation of the meaning of the formula: Formula (1) can be divided into three parts.

[0104] Part I The air conditioner has only two states, namely, connected and disconnected. The first part means to deduct the proportion of the disconnected operation time d and calculate the parameters during the connected period. Dd is the time of connected operation. The disconnected operation time d≤D. If the disconnected operation time d reaches D, it is recommended to turn on self-cleaning. The expression of its control logic is: After moving

[0105] Part 2 t is the sampling interval. If sampling is done once a day, i.e., t=24, the daily increment of i is 1; if sampling is done twice a day, i.e., t=12, the daily increment of i is 2. The more frequent the sampling, the more accurate the environmental parameter estimation, but the greater the amount of calculation.

[0106] Part 3 According to the humidity RH of the outdoor environment i and air quality P i Estimate the degree of dirtiness of the outdoor unit. Each time a sample is taken, i is counted once. i RH i These two parameters are directly proportional.

[0107] Formula (2) is a supplementary explanation of formula (1), that is, the actual iterative calculation process, each sampling is performed and Q is accumulated and calculated once, until the user completes the self-cleaning cycle, and then iterates again, and this is a cycle.

[0108] Reasons for parameter setting: The heat exchanger of the air conditioner outdoor unit is mainly polluted by the attachment of dust and other particles in the air. The degree of attachment of dust and other tiny particles is mainly related to the state of the particles and the air humidity. The better the current ambient air quality, the fewer pollutants. The higher the ambient humidity, the easier it is for pollutants to attach to the heat exchanger, and vice versa. Generally, the outdoor unit of the air conditioner is only equipped with a temperature sensor for economic considerations, and no humidity, air quality and other sensors. The outdoor air quality P i , humidity RH i Parameters such as the above can be obtained through weather forecasts to save the cost of unit sensors.

[0109] The parameters are explained as follows:

[0110] D—Preset program running time, for air conditioners that are not connected to the Internet. It is recommended to turn on self-cleaning after running for D time;

[0111] d—The accumulated time during which the air conditioner was disconnected from the Internet, used to count the running time during the disconnection period;

[0112] P i —Air quality parameters obtained through the Internet. The air quality in the weather forecast is usually divided into four levels: excellent, good, moderate, and poor. Different parameter values ​​are returned for each level, with excellent being smaller and poor being larger.

[0113] RH i —Relative humidity parameters of air obtained through the Internet;

[0114] M—The program presets the outdoor unit dirtiness parameters to determine whether it is recommended to turn on the self-cleaning function;

[0115] Q—iterative calculation of the outdoor unit dirtiness parameter to measure the current degree of dirtiness of the outdoor unit;

[0116] t—Cycle interval timing time, the cycle of each data collection. The smaller the value, the more frequent the collection.

[0117] n—Loop count parameter.

[0118] How does the air conditioner obtain weather forecast information? The specific implementation can be divided into the following steps:

[0119] Internet connection: usually connected to the internet via Wi-Fi or mobile network. Modern smart air conditioners are usually equipped with a Wi-Fi module, which can connect to the internet through your home Wi-Fi network.

[0120] Obtaining user location information: Manual input, the user manually enters the location information in the air conditioner settings. Automatic acquisition, if the air conditioner is connected to the user's smartphone or smart home system, the location information can be automatically obtained through these devices.

[0121] Connect to weather service API: The air conditioner needs to connect to the API (application programming interface) that provides weather forecast data. Common weather service providers include OpenWeatherMap, WeatherAPI, AccuWeather, etc.

[0122] Send request: The air conditioner sends a request to the weather service through the API to obtain the required weather data.

[0123] Parse and process the received data: After the air conditioner receives the response data returned by the weather service, it needs to parse the data and extract the required weather parameters.

[0124] In actual applications, relevant software and firmware can be pre-installed in the product, and the function of automatically acquiring and processing weather data can be achieved through the built-in Wi-Fi module and API interface, so as to reduce the hardware cost of sensors such as outdoor unit humidity and air quality.

[0125] In the prior art, the self-cleaning function of the air conditioner outdoor unit has been developed for different occasions and models. The basic control process of the self-cleaning function of the outdoor unit is as follows: Figure 3 As shown in the figure, when the outdoor self-cleaning program is started, the outdoor heat exchanger enters the condensation, freezing and defrosting stages one by one by adjusting the compressor frequency, the throttling element opening and the speed of the internal and external fans. When the outdoor condenser enters the condensation stage and sufficient condensed water is precipitated on the heat exchanger, it enters the freezing stage, lowers the heat exchanger tube temperature to freeze the surface condensed water, and achieves the purpose of stripping the surface stains, and then enters the defrosting stage, heats up and defrosts to form a flowing water film to achieve the purpose of flushing the condenser, and finally the external fan reverses to achieve the purpose of blowing off the residual stains and condensed water on the surface of the heat exchanger, completing the self-cleaning function.

[0126] Additional Notes

[0127] The air conditioner obtains the parameter relative humidity RH from the Internet (local weather forecast, weather station and other network platforms) i , air quality parameter P i The recommended parameter values ​​returned to the program are shown in the following table. Good air quality means less impurities in the air, the outdoor unit heat exchanger is not easily contaminated, and the return value is small; conversely, poor air quality means a large return value. The higher the relative humidity, the easier it is for impurities in the air to adhere to the heat exchanger, and the larger the return value, and vice versa.

[0128] For example, as shown in Table 1.

[0129] Get parameter value Return parameter value Air quality: Excellent <![CDATA[P i =1]]> Air quality: Good <![CDATA[P i =2 <!-- 7 -->]]> Air quality: Medium <![CDATA[P i =3]]> Air Quality: Poor <![CDATA[P i =4]]> <![CDATA[85%≤RH i ]]> <![CDATA[RH i =5]]> <![CDATA[70%≤RH i <85%]]> <![CDATA[RH i =4]]> <![CDATA[55%≤RH i <70%]]> <![CDATA[RH i =3]]> <![CDATA[40%≤RH i <55%]]> <![CDATA[RH i =2]]> <![CDATA[RH i <40%]]> <![CDATA[RH i =1]]>

[0130] Table 1

[0131] The parameters involved in the control process should have different requirements for models with different cooling capacities. The smaller the cooling capacity, the smaller the parameter value of the cumulative running time D, and the smaller the parameter value of the preset outdoor unit dirtiness parameter M, and vice versa; the smaller the cycle interval timing time t value, the more frequently the air quality and other parameters are obtained, and the more accurate the estimated value of the dirtiness, but it will increase the machine calculation and energy consumption. Taking a household air conditioner with a cooling capacity of 3.5kW as an example, the recommended setting parameters of each parameter are shown in Table 2:

[0132] Cumulative running time D 75 days Preset outdoor unit dirtiness parameter M 1350 Cycle interval timing time t 12 hours

[0133] Table 2

[0134] The specific air-conditioning outdoor unit cleaning method provided in the embodiment of the present application solves the problem that users do not know when to turn on the self-cleaning function of the outdoor unit: for household air conditioners, the local humidity, air quality and other external parameters during the operation of the air-conditioning outdoor unit are obtained through the Internet, and cumulative calculations are performed to determine whether the iterative value exceeds the preset value, so as to actively recommend the most appropriate time to start the self-cleaning of the outdoor unit. This can save the cost of corresponding sensors (humidity sensors, air quality sensors, etc.) of the air-conditioning outdoor unit and improve the cost-effectiveness and intelligence of the air conditioner.

[0135] Based on the same inventive concept, Figure 4 As shown, the present application also provides an air conditioner outdoor unit cleaning device 40, comprising:

[0136] The network status acquisition module 41 is used to acquire the network status of the air conditioner.

[0137] The real-time weather acquisition module 42 acquires the real-time weather when the air conditioner is always connected to the network, and the real-time weather includes air quality and air humidity.

[0138] The dirtiness value calculation module 43 is used to determine a dirtiness value based on the air quality and the air humidity, wherein the dirtiness value is used to characterize the dirtiness degree of the air conditioner outdoor unit.

[0139] Wherein, determining the dirtiness value based on the air quality and the air humidity includes:

[0140] Get the sampling interval time for each day;

[0141] The dirtiness value is determined based on the daily sampling interval, the air quality and the air humidity; the calculation formula is as follows:

[0142]

[0143] Among them, Q is the dirtiness value, t is the daily sampling interval, n is the total number of sampling times, i is the i-th sampling, P i is the air quality, RH i For air humidity.

[0144] The self-cleaning start module 44 is used to control the air-conditioning outdoor unit to start self-cleaning and reset the dirt value when the dirt value is greater than or equal to a preset dirt value.

[0145] Also includes:

[0146] When the air conditioner is always disconnected from the network, obtain the disconnection duration;

[0147] When the network disconnection duration is greater than or equal to the preset network disconnection duration, the air-conditioning outdoor unit is controlled to start self-cleaning, and the dirtiness value is reset to zero.

[0148] Also includes:

[0149] When the air conditioner is first connected to the Internet and then disconnected from the Internet, real-time weather obtained when the Internet is connected is obtained, and future weather obtained before the Internet is disconnected is obtained, wherein the future weather is the predicted air quality and air humidity when the Internet is disconnected obtained before the Internet is disconnected;

[0150] Determine an online dirtiness value based on the real-time weather and determine an offline dirtiness value based on the future weather;

[0151] When the sum of the online dirtiness value and the offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0152] Wherein, when the sum of the online dirtiness value and the offline dirtiness value is less than the preset dirtiness value and the air conditioner changes from offline to online; obtaining the historical weather when the network was disconnected, the historical weather includes the air quality and air humidity when the network was disconnected;

[0153] Correcting the disconnection pollution value based on the historical weather, and continuing to obtain the connection pollution value;

[0154] When the sum of the online dirtiness value and the corrected offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0155] Also includes:

[0156] When the air conditioner is disconnected from the Internet first and then connected to the Internet, the duration of disconnection and the real-time weather when the air conditioner is connected to the Internet are obtained;

[0157] The real-time weather calculation network dirtiness value;

[0158] Determine a first dirtiness value according to the network disconnection duration and the network dirtiness value; first dirtiness value=(network disconnection duration+network connection duration) / network connection duration*network dirtiness value;

[0159] When the first dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the first dirtiness value is reset to zero.

[0160] Also includes:

[0161] When the air conditioner is disconnected from the network first and then connected to the network, the real-time weather when connected to the network and the historical weather when disconnected from the network are obtained, wherein the historical weather includes the air quality and air humidity when disconnected from the network;

[0162] Calculate the offline pollution value based on the historical weather, and calculate the online pollution value based on the real-time weather;

[0163] When the sum of the online dirtiness value and the offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

[0164] The air conditioner outdoor unit cleaning device provided in the embodiment of the present application first obtains the networking status of the air conditioner, obtains the real-time weather when the air conditioner is always connected to the network, and then determines the dirtiness value according to the real-time weather. When the dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning and the dirtiness value is reset. When connected to the network, the present application only needs to obtain the air quality and air humidity through the network, and the dirtiness degree of the outdoor unit can be determined based on the air quality and air humidity, and then determines whether the self-cleaning is started. There is no need to install additional sensors, which ensures that the air conditioner outdoor unit can be cleaned in time without adding additional costs.

[0165] Based on the same inventive concept, Figure 5 As shown, the present application also provides an air conditioner outdoor unit cleaning system 50, comprising:

[0166] at least one processor 51 and at least one memory 52;

[0167] The memory stores executable instructions of the processor;

[0168] The processor is configured to execute the air conditioner outdoor unit cleaning method provided in the above embodiment.

[0169] The air conditioner outdoor unit cleaning system provided in the embodiment of the present application stores executable instructions of the processor in the memory. When the executable instructions are executed, the processor can first obtain the network status of the air conditioner, obtain the real-time weather when the air conditioner is always connected to the network, and then determine the dirtiness value according to the real-time weather. When the dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning and the dirtiness value is cleared. In the case of networking, the present application only needs to obtain the air quality and air humidity through the network, and the degree of dirtiness of the outdoor unit can be determined based on the air quality and air humidity, and then determine whether self-cleaning is started. There is no need to install additional sensors, which ensures that the air conditioner outdoor unit can be cleaned in time without adding additional costs.

[0170] Based on the same inventive concept, the present application also provides an air conditioner, which uses the air conditioner outdoor unit cleaning method provided in the above embodiment.

[0171] The air conditioner provided in the embodiment of the present application, by applying the air conditioner outdoor unit cleaning method provided in the above embodiment, can first obtain the network status of the air conditioner, obtain the real-time weather when the air conditioner is always connected to the network, and then determine the dirtiness value according to the real-time weather. When the dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning and the dirtiness value is cleared. In the case of networking, the present application only needs to obtain the air quality and air humidity through the network, and the degree of dirtiness of the outdoor unit can be determined based on the air quality and air humidity, and then determine whether self-cleaning is started. There is no need to install additional sensors, which ensures that the air conditioner outdoor unit can be cleaned in time without adding additional costs.

[0172] It should be noted that, in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" refers to at least two.

[0173] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

Claims

1. A method for cleaning an air conditioner outdoor unit, characterized in that: include: Get the network status of the air conditioner; When the air conditioner is always connected to the network, real-time weather is obtained, wherein the real-time weather includes air quality and air humidity; Determine a dirtiness value based on the air quality and the air humidity, the dirtiness value being used to characterize a dirtiness degree of an outdoor unit of an air conditioner; When the dirtiness value is greater than or equal to a preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning and the dirtiness value is reset to zero.

2. The method according to claim 1, characterized in that: The determining of the dirtiness value based on the air quality and the air humidity includes: Get the sampling interval time for each day; The dirtiness value is determined based on the daily sampling interval, the air quality and the air humidity; the calculation formula is as follows: Among them, Q is the dirtiness value, t is the daily sampling interval, n is the total number of sampling times, i is the i-th sampling, P i is the air quality, RH i For air humidity.

3. The method according to claim 1, characterized in that Also includes: When the air conditioner is always disconnected from the network, obtain the disconnection duration; When the network disconnection duration is greater than or equal to the preset network disconnection duration, the air-conditioning outdoor unit is controlled to start self-cleaning, and the dirtiness value is reset to zero.

4. The method according to claim 1, characterized in that: Also includes: When the air conditioner is first connected to the Internet and then disconnected from the Internet, real-time weather obtained when the Internet is connected is obtained, and future weather obtained before the Internet is disconnected is obtained, wherein the future weather is the predicted air quality and air humidity when the Internet is disconnected obtained before the Internet is disconnected; Determine an online dirtiness value based on the real-time weather and determine an offline dirtiness value based on the future weather; When the sum of the online dirtiness value and the offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

5. The method according to claim 4, characterized in that Also includes: When the sum of the online dirtiness value and the offline dirtiness value is less than the preset dirtiness value and the air conditioner changes from offline to online; Obtain historical weather when the network is disconnected, wherein the historical weather includes air quality and air humidity when the network is disconnected; Correcting the disconnection pollution value based on the historical weather, and continuing to obtain the connection pollution value; When the sum of the online dirtiness value and the corrected offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

6. The method according to claim 1, characterized in that Also includes: When the air conditioner is disconnected from the Internet first and then connected to the Internet, the duration of disconnection and the real-time weather when the air conditioner is connected to the Internet are obtained; The real-time weather calculation network dirtiness value; Determine a first dirtiness value according to the network disconnection duration and the network dirtiness value; first dirtiness value=(network disconnection duration+network connection duration) / network connection duration*network dirtiness value; When the first dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the first dirtiness value is reset to zero.

7. The method according to claim 1, characterized in that Also includes: When the air conditioner is disconnected from the network first and then connected to the network, the real-time weather when connected to the network and the historical weather when disconnected from the network are obtained, wherein the historical weather includes the air quality and air humidity when disconnected from the network; Calculate the offline pollution value based on the historical weather, and calculate the online pollution value based on the real-time weather; When the sum of the online dirtiness value and the offline dirtiness value is greater than or equal to the preset dirtiness value, the air conditioner outdoor unit is controlled to start self-cleaning, and the online dirtiness value and the offline dirtiness value are reset to zero.

8. An air conditioner outdoor unit cleaning device, characterized in that: include: A network status acquisition module is used to obtain the network status of the air conditioner; A real-time weather acquisition module, which acquires real-time weather when the air conditioner is always connected to the Internet, wherein the real-time weather includes air quality and air humidity; a dirtiness value calculation module, used to determine a dirtiness value based on the air quality and the air humidity, wherein the dirtiness value is used to characterize the dirtiness degree of the air conditioner outdoor unit; The self-cleaning start module is used to control the air conditioner outdoor unit to start self-cleaning and reset the dirt value when the dirt value is greater than or equal to a preset dirt value.

9. An air conditioner outdoor unit cleaning system, characterized in that: include: at least one processor and at least one memory; The memory stores executable instructions of the processor; The processor is configured to execute the method according to any one of claims 1 to 7.

10. An air conditioner, characterized in that: The method according to any one of claims 1 to 7 is used.

Images