Control method and device of washing machine, electronic equipment, washing machine and storage medium

Abstract

The application belongs to the technical field of household appliances, and particularly relates to a control method and device of a washing machine, an electronic device, a washing machine and a storage medium. The method comprises the following steps: sequentially arranging a filter device, an evaporator and a condenser in an air duct of the washing machine; acquiring temperature and humidity information sent by temperature and humidity sensors arranged at positions before and after the evaporator; calculating a mean value of air humidity before the evaporator in a condensation time and a mean value of air humidity after the evaporator in the condensation time by using the temperature and humidity information in the condensation time; the condensation time is a time required for condensed water discharged by the condenser to reach a condensation rated water amount; calculating an average air volume in the condensation time by using the calculated mean values and the condensation rated water amount, and determining whether the average air volume is greater than a first threshold value; if not, starting a spraying program to clean the filter device. In this way, the filter device can be cleaned in time, the stability of system air volume is improved, and user experience is improved.

Description

Technical Field

[0001] This application belongs to the field of household appliance technology, specifically relating to a control method, device, electronic equipment, washing machine, and storage medium for a washing machine. Background Technology

[0002] With the development of washing machine technology, washing machines have become an increasingly common household appliance in people's daily lives. Nowadays, washing machines are equipped with drying systems, which can dry clothes in time, saving the time of air drying. However, during the drying process, lint will hang on the air outlet filter with the air flow. Over time, the lint will accumulate on the filter screen in the filter device, causing blockage, reducing the system air volume and deteriorating the drying performance.

[0003] In the prior art, a filter and a cleaning device are installed in the air duct of the washing machine to filter the air passing through the air duct and to clean the lint on the filter screen.

[0004] However, existing technology cannot clean the lint on the filter in a timely manner, and the system airflow is relatively unstable. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, namely the inability of existing washing machines to promptly clean lint from the filter and the low stability of the system airflow, this application provides a control method, device, electronic equipment, washing machine, and storage medium for a washing machine that can promptly clean the filter, improve the stability of the system airflow, and enhance the user experience.

[0006] In a first aspect, embodiments of this application provide a control method for a washing machine, wherein a filter, an evaporator, and a condenser are sequentially arranged within the air duct of the washing machine, respectively used for filtering, evaporating, and condensing the air within the air duct; the method includes:

[0007] Acquire temperature and humidity information from temperature and humidity sensors located before and after the evaporator; wherein the temperature and humidity information includes real-time dry-bulb temperature and relative humidity; using the temperature and humidity information during the condensation time, calculate the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time; wherein the condensation time is the time required for the condensate discharged from the condenser to reach the rated condensate volume; use the calculated average values ​​and the rated condensate volume to calculate the average airflow during the condensation time, and determine whether the average airflow is greater than a first threshold; if not, start the spray program to clean the filter device.

[0008] Optionally, the washing machine further includes a water tank and a liquid level sensor, the water tank being used to collect condensate discharged from the condenser, and the liquid level sensor being used to sense changes in the amount of condensate in the water tank; the method further includes:

[0009] The condensation time is obtained by detecting the first time when condensate begins to enter the water tank and the second time when the condensate in the water tank reaches the rated condensation volume using a liquid level sensor; the second time is subtracted from the first time.

[0010] Optionally, the average air volume during the condensation time is determined by the following formula:

[0011]

[0012] Where Q represents the average air volume during the condensation time, t2 represents the second time, t1 represents the first time, m represents the rated condensate water volume, D2a represents the average humidity of the air after the evaporator during the condensation time, and D1a represents the average humidity of the air before the evaporator during the condensation time.

[0013] Optionally, a spray program can be initiated to clean the filter, including:

[0014] Start the spray program, control the spray arm to spray a certain amount of water to clean the filter device within a certain time, and drain the water used to clean the filter device; after cleaning, determine whether the average air volume within the preset time is greater than the second threshold; if not, start the spray program again to clean the filter device.

[0015] Optionally, using the temperature and humidity information during the condensation time, the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time are calculated, including:

[0016] Based on the Hyland-Wexler formula, the actual partial pressure of water vapor before the evaporator and the actual partial pressure of water vapor after the evaporator during the condensation time are calculated using the real-time dry-bulb temperature and relative humidity before and after the evaporator during the condensation time, respectively. The calculated actual partial pressure of water vapor and the measured atmospheric pressure are then used to calculate the air humidity before the evaporator and the air humidity after the evaporator during the condensation time.

[0017] Using the obtained air humidity during the condensation time, calculate the total air humidity before the evaporator and the total air humidity after the evaporator, respectively, and determine the mean air humidity before the evaporator and the mean air humidity after the evaporator during the condensation time based on the calculated total air humidity.

[0018] Optionally, the method further includes:

[0019] When the condensate in the tank reaches the rated condensate volume, the drainage program is started, and the water pump is used to drain the condensate collected in the tank during the condensation time. After the condensate in the tank is drained, the drainage program is turned off, and when the condensate in the tank reaches the rated condensate volume, the average air volume is recalculated to determine whether the filter device needs to be cleaned.

[0020] Secondly, embodiments of this application also provide a control device for a washing machine, the device comprising:

[0021] The module includes an acquisition module for acquiring temperature and humidity information sent by temperature and humidity sensors located before and after the evaporator; wherein the temperature and humidity information includes real-time dry-bulb temperature and relative humidity; a first calculation module for calculating the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time using the temperature and humidity information during the condensation time; wherein the condensation time is the time required for the condensate discharged from the condenser to reach the rated condensate volume; a second calculation module for calculating the average airflow during the condensation time using the calculated average values ​​and the rated condensate volume, and determining whether the average airflow is greater than a first threshold; and a processing module for initiating a spray program to clean the filter device when the average airflow is not greater than the first threshold.

[0022] Optionally, the washing machine further includes a water tank and a liquid level sensor, the water tank being used to collect condensate discharged from the condenser, and the liquid level sensor being used to sense changes in the amount of condensate in the water tank; the first calculation module is further used for:

[0023] The condensation time is obtained by detecting the first time when condensate begins to enter the water tank and the second time when the condensate in the water tank reaches the rated condensation volume using a liquid level sensor; the second time is subtracted from the first time.

[0024] Optionally, the average air volume during the condensation time is determined by the following formula:

[0025]

[0026] Where Q represents the average air volume during the condensation time, t2 represents the second time, t1 represents the first time, m represents the rated condensate water volume, D2a represents the average humidity of the air after the evaporator during the condensation time, and D1a represents the average humidity of the air before the evaporator during the condensation time.

[0027] Optional, processing module, specifically used for:

[0028] Start the spray program, control the spray arm to spray a certain amount of water to clean the filter device within a certain time, and drain the water used to clean the filter device; after cleaning, determine whether the average air volume within the preset time is greater than the second threshold; if not, start the spray program again to clean the filter device.

[0029] Optional, the first calculation module is specifically used for:

[0030] Based on the Hyland-Wexler formula, the actual partial pressure of water vapor before the evaporator and the actual partial pressure of water vapor after the evaporator during the condensation time are calculated using the real-time dry-bulb temperature and relative humidity before and after the evaporator during the condensation time, respectively. The calculated actual partial pressure of water vapor and the measured atmospheric pressure are then used to calculate the air humidity before the evaporator and the air humidity after the evaporator during the condensation time.

[0031] Using the obtained air humidity during the condensation time, calculate the total air humidity before the evaporator and the total air humidity after the evaporator, respectively, and determine the mean air humidity before the evaporator and the mean air humidity after the evaporator during the condensation time based on the calculated total air humidity.

[0032] Optionally, the processing module is also used for:

[0033] When the condensate in the tank reaches the rated condensate volume, the drainage program is started, and the water pump is used to drain the condensate collected in the tank during the condensation time. After the condensate in the tank is drained, the drainage program is turned off, and when the condensate in the tank reaches the rated condensate volume, the average air volume is recalculated to determine whether the filter device needs to be cleaned.

[0034] Thirdly, embodiments of this application also provide an electronic device, including: a processor, and a memory communicatively connected to the processor; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to implement the washing machine control method provided in any embodiment corresponding to the first aspect.

[0035] Fourthly, embodiments of this application also provide a washing machine, including: a filter device, an evaporator, a condenser, and the electronic equipment described in the third aspect.

[0036] Fifthly, embodiments of this application also provide a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the control method for a washing machine as provided in any embodiment corresponding to the first aspect.

[0037] Those skilled in the art will understand that the washing machine control method, apparatus, electronic device, washing machine, and storage medium provided in this application can acquire temperature and humidity information sent by temperature and humidity sensors respectively located before and after the evaporator; further, using the temperature and humidity information, the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time are calculated; then, the average airflow during this period is calculated using the average value and the rated condensate water volume, and the spray program is determined based on the magnitude of the average airflow to clean the filter. This not only cleans the dirt on the filter in a timely manner but also improves the stability of the system's airflow and enhances the user experience. Attached Figure Description

[0038] Preferred embodiments of the washing machine control method, apparatus, electronic device, washing machine, and storage medium of this application will now be described with reference to the accompanying drawings. The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. The drawings are as follows:

[0039] Figure 1 This is an application scenario diagram of a washing machine control method provided in an embodiment of this application;

[0040] Figure 2 A flowchart illustrating a control method for a washing machine provided in an embodiment of this application;

[0041] Figure 3 A schematic diagram of the layout of a temperature and humidity sensor provided in an embodiment of this application;

[0042] Figure 4 A schematic diagram of the architecture of a washing machine provided in an embodiment of this application;

[0043] Figure 5 A schematic diagram illustrating the principle of a washing machine control method provided in an embodiment of this application;

[0044] Figure 6 This is a schematic diagram of the structure of a control device for a washing machine provided in an embodiment of this application;

[0045] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0048] The application scenarios of the embodiments of this application are explained below:

[0049] Figure 1 This is an application scenario diagram of a washing machine control method provided in an embodiment of this application, such as... Figure 1 As shown, the washing machine 101 has a drying system. The user 102 can put the clothes to be washed into the washing tub 103 of the washing machine 101. The washing tub 103 includes an inner tub and an outer tub. The inner tub directly contacts the clothes to be washed. After the clothes are washed, the user 102 can start the drying program to dry the washed clothes directly, saving the time of air drying. However, during the drying process, the lint on the clothes will be suspended on the filter device of the air outlet with the air flow. Over time, the lint will accumulate on the filter device, which may cause blockage, reduce the system air volume, and deteriorate the drying performance. Therefore, this application can process the temperature and humidity information generated during the drying process to clean the filter device in a timely manner, so as to enable online intelligent cleaning of the filter device of the washing machine 101 during the drying process.

[0050] It is understood that the execution entity of the filter device of the online intelligent cleaning washing machine 101 can be the washing machine system itself or the cloud. That is, the washing machine 101 sends the temperature and humidity information collected during the drying process to the cloud, the cloud processes the temperature and humidity information, generates control commands and sends them to the washing machine 101 to clean the filter device. This application embodiment does not limit this.

[0051] In some technologies, a filter and a cleaning device can be installed separately in the washing machine's air duct to filter the air passing through the duct and clean the lint on the filter screen.

[0052] However, the above technology cannot clean the lint in the filter screen in the filter device in a timely manner, and the system airflow stability is low. When there is too much lint on the filter screen in the filter device, it affects the drying capacity of the washing machine.

[0053] To address the aforementioned problems, this application provides a control method for a washing machine. This method acquires temperature and humidity information from temperature and humidity sensors located before and after the evaporator. It further uses this information to calculate the average humidity of the air before the evaporator from the time condensate begins to enter until it reaches a set value, and the average humidity of the air after the evaporator during the condensation period. Then, it uses this average value and the rated condensate water volume to calculate the average airflow during this period, and determines whether to activate the spray program to clean the filter based on the average airflow. This not only cleans the filter promptly but also improves the stability of the system's airflow and drying capacity, enhancing the user experience.

[0054] For example, Figure 2 This is a flowchart illustrating a control method for a washing machine provided in an embodiment of this application. Figure 2 As shown, the control method of this washing machine includes the following steps:

[0055] S201. Obtain temperature and humidity information sent by temperature and humidity sensors respectively set at the front and rear positions of the evaporator; wherein, the temperature and humidity information includes real-time dry-bulb temperature and relative humidity.

[0056] In this embodiment of the application, the evaporator can refer to an object that converts the moisture in the wet clothes to be washed in the washing machine into a gaseous state, and is used to evaporate the air in the air duct of the washing machine.

[0057] A temperature and humidity sensor refers to a sensor device that measures temperature and humidity. It collects temperature and humidity signals, processes them through circuits such as voltage regulation and filtering, operational amplification, nonlinear correction, V / I conversion, constant current and reverse protection, and then converts them into current or voltage signals that are linearly related to temperature and humidity for output.

[0058] Real-time dry-bulb temperature refers to the real-time value read from a dry-bulb thermometer exposed to air but not directly exposed to sunlight. This value is the temperature measured by the thermometer in ordinary air. For example, the real-time dry-bulb temperature at a certain time could be 20°C.

[0059] Relative humidity refers to the ratio of the absolute humidity of the air to the saturation absolute humidity at the same temperature and pressure. It is expressed as a percentage, specifically the ratio of the mass of water vapor in moist air to the mass of water vapor in saturated air at the same temperature and pressure. For example, relative humidity can be 60%.

[0060] In this embodiment, temperature and humidity sensors can be installed at the front and rear positions of the evaporator, respectively. Figure 3 This is a schematic diagram of the layout of a temperature and humidity sensor provided in an embodiment of this application, as shown below. Figure 3 As shown, taking the temperature and humidity sensors respectively located before and after the evaporator 302 as an example, the washing machine's air duct is sequentially equipped with a filter device 305, a first temperature and humidity sensor 3011, an evaporator 302, a second temperature and humidity sensor 3012, and a condenser 303. The washing machine is also equipped with a heat pump housing 304 to protect the first temperature and humidity sensor 3011, the second temperature and humidity sensor 3012, the evaporator 302, the condenser 303, and the filter device 305. The filter device 305 is used to filter the air in the air duct, the evaporator 302 is used to evaporate the air in the air duct, and the condenser 303 is used to condense the air in the air duct.

[0061] For example, in Figure 1 In the application scenario, the washing machine 101 system can obtain temperature and humidity information sent by the first temperature and humidity sensor 3011 and the second temperature and humidity sensor 3012, which are respectively set at the front and rear positions of the evaporator 302.

[0062] It is understood that temperature and humidity sensors can also be set at positions before and after the condenser 303. The washing machine control method of this application can also be implemented by acquiring the temperature and humidity information sent by the temperature and humidity sensors set at positions before and after the condenser 303.

[0063] S202. Using the temperature and humidity information during the condensation time, calculate the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time; wherein, the condensation time is the time required for the condensate discharged from the condenser to reach the rated condensate volume.

[0064] In this embodiment of the application, the air humidity content can refer to a parameter that indicates how much water vapor is contained in the humid air. It can be calculated using the Hyland-Wexler formula. For example, the saturated water vapor partial pressure is first calculated using formula (1) or formula (2), as shown below:

[0065] lnp ws =C1 / T + C2 + C3 / T + C4 / T 2 +C5 / T 3 +C6 / T 4 +C7lnT (1)

[0066] Where, C1 = -5.6745359 * 10 3 , C2=6.3925247, C3=-9.6778430*10 -3C4 = 6.2215701 * 10 -7 C5 = 2.0747825 * 10 -9 C6 = -9.4840.40 * 10 -13 C7 = 4.1635019, T represents the real-time dry-bulb temperature, ranging from -100℃ to 0℃, p ws This represents the partial pressure of saturated water vapor, which is the pressure of water vapor when it reaches saturation.

[0067] lnp ws =C8 / T+C9+C 10 / T+C 11 / T 2 +C 12 / T 3 +C 13 lnT (2)

[0068] Where, C8 = -58002206 * 10 3 C9 = 1.3914993, C 10 = -4.8640239 * 10 -2 C 11 =4.1764768*10 -5 C 12 = -1.4452093 * 10 -8 C 13 = 6.5459673, where T represents the real-time dry-bulb temperature, ranging from 0℃ to 200℃, and p ws This represents the partial pressure of saturated water vapor, measured in Pa.

[0069] Furthermore, based on relative humidity The actual partial pressure of water vapor pw is calculated using formula (3) (unit: %) and the saturated water vapor partial pressure pws (unit: Pa). Formula (3) is as follows:

[0070]

[0071] Finally, the air humidity W is calculated using formula (4) based on the actual partial pressure of water vapor pw and the measured atmospheric pressure (in Pa). Formula (4) is as follows:

[0072]

[0073] Where P represents the measured atmospheric pressure, and we take P = 101325 Pa.

[0074] In this embodiment, the condensation time is the time required for the condensate discharged from the condenser to reach the rated condensate volume. For example, the condensation time can be 10 minutes. The rated condensate volume can refer to the amount of condensate that needs to be discharged when it reaches a set value. For example, the rated condensate volume can be 10 ml. The rated condensate volume can be set by the system or can be modified manually. This embodiment does not specifically limit this.

[0075] For example, the washing machine system can use the temperature and humidity information obtained within a condensation time of 10 minutes to calculate the air humidity in front of the evaporator within 10 minutes using formulas (1)-(4). Furthermore, the average air humidity in front of the evaporator and the average air humidity behind the evaporator within 10 minutes can be calculated using the calculated air humidity in front of the evaporator.

[0076] S203. Calculate the average air volume during the condensation time using the calculated average value and the rated condensate water volume, and determine whether the average air volume is greater than the first threshold.

[0077] In this embodiment of the application, the first threshold may refer to a set value used to determine the air volume and further determine whether to start the spray program. For example, the first threshold may be 50% of the rated air volume set by the system. The rated air volume may refer to the volume flow rate of air entering the unit per unit time under standard air conditions and specified test conditions. The first threshold may also be modified manually. This embodiment of the application does not specifically limit this.

[0078] For example, the washing machine system can use the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time, as well as the rated condensation water volume, to calculate the average air volume during the condensation time. Furthermore, it can determine whether the average air volume is greater than 50% of the rated air volume.

[0079] S204. If not, start the spray program to clean the filter device.

[0080] In this embodiment of the application, the spraying procedure can refer to a procedure that uses a certain amount of water to clean the filter screen in the filtration device within a certain time period.

[0081] For example, if the average air volume is determined to be less than 50% of the rated air volume, the washing machine system can automatically start the spray program to clean the filter screen in the filter device.

[0082] It is understood that the embodiments of this application do not specifically limit the cleaning time and the amount of water used in the filter cleaning process.

[0083] Therefore, by collecting temperature and humidity data before and after the evaporator from temperature and humidity sensors, the change in moisture content of the evaporator is calculated, and then the average airflow is calculated. Based on the change in airflow, it is determined whether to clean the filter. This allows for timely cleaning of dirt on the filter device, and also improves the stability of the system's airflow and drying process, thus enhancing the user experience.

[0084] Optionally, the washing machine further includes a water tank and a liquid level sensor, the water tank being used to collect condensate discharged from the condenser, and the liquid level sensor being used to sense changes in the amount of condensate in the water tank; the method further includes:

[0085] The condensation time is obtained by detecting the first time when condensate begins to enter the water tank and the second time when the condensate in the water tank reaches the rated condensation volume using a liquid level sensor; the second time is subtracted from the first time.

[0086] In this embodiment, the liquid level sensor may refer to a pressure sensor that measures the liquid level and can sense changes in the water level in the tank.

[0087] For example, when condensate enters the washing machine's tub, it triggers the liquid level sensor. The washing machine system uses the liquid level sensor to detect the first moment when condensate begins to enter the tub. When the condensate reaches a set value, the liquid level sensor can measure that the pressure in the tub has reached the set value. Then, the washing machine system uses the liquid level sensor to detect the second moment when the condensate reaches the rated condensation volume. Furthermore, by subtracting the second moment from the first moment, the condensation time can be obtained.

[0088] Therefore, by detecting and monitoring water level changes in real time through a liquid level sensor, and further obtaining the condensation time, the efficiency of the washing machine can be improved while ensuring timeliness.

[0089] Optionally, the average air volume during the condensation time is determined by the following formula:

[0090]

[0091] Where Q represents the average air volume during the condensation time, t2 represents the second time, t1 represents the first time, m represents the rated condensate water volume, D2a represents the average humidity of the air after the evaporator during the condensation time, and D1a represents the average humidity of the air before the evaporator during the condensation time.

[0092] It is understandable that the condensation time is the difference between the second time and the first time.

[0093] For example, the washing machine system can use the average humidity of the air before the evaporator during the condensation time and the average humidity of the air after the evaporator during the condensation time, as well as the rated condensation water volume, to calculate the average air volume during the condensation time using formula (5).

[0094] Therefore, the average air volume during the condensation time can be calculated using formula (5), which improves the accuracy of the calculation.

[0095] Optionally, a spray program can be initiated to clean the filter, including:

[0096] Start the spray program, control the spray arm to spray a certain amount of water to clean the filter device within a certain time, and drain the water used to clean the filter device; after cleaning, determine whether the average air volume within the preset time is greater than the second threshold; if not, start the spray program again to clean the filter device.

[0097] In this embodiment, the second threshold may refer to a set value used to determine the air volume and further determine whether it is clean. For example, the second threshold may be 90% of the rated air volume set by the system. The second threshold may also be modified manually. This embodiment does not specifically limit this.

[0098] The preset time refers to the time set for cleaning the filter device. This preset time can be 1 minute, which can be determined through extensive testing and then set by the system, or it can be modified manually. This application embodiment does not specifically limit this.

[0099] For example, after the washing machine starts the spray program, the spray arm can spray a certain amount of water to clean the filter device in the washing machine's air duct within a certain time period, and then drain the water used to clean the filter device. Furthermore, after the cleaning is completed, it can be determined whether the average air volume within 1 minute is greater than 90% of the rated air volume. If so, the drying program continues and the air volume is monitored. If not, the spray program is restarted to clean the filter device.

[0100] Therefore, the clogging status of the filter screen in the filtration device can be monitored in real time and cleaned, thereby improving the effectiveness of drying.

[0101] Optionally, using the temperature and humidity information during the condensation time, the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time are calculated, including:

[0102] Based on the Hyland-Wexler formula, the actual partial pressure of water vapor before the evaporator and the actual partial pressure of water vapor after the evaporator during the condensation time are calculated using the real-time dry-bulb temperature and relative humidity before and after the evaporator during the condensation time, respectively. The calculated actual partial pressure of water vapor and the measured atmospheric pressure are then used to calculate the air humidity before the evaporator and the air humidity after the evaporator during the condensation time.

[0103] Using the obtained air humidity during the condensation time, calculate the total air humidity before the evaporator and the total air humidity after the evaporator, respectively, and determine the mean air humidity before the evaporator and the mean air humidity after the evaporator during the condensation time based on the calculated total air humidity.

[0104] For example, the saturated water vapor partial pressure is calculated using formula (1) or formula (2) based on the real-time dry-bulb temperature and relative humidity before and after the evaporator during the condensation time. Further, the actual water vapor partial pressure before the evaporator and the actual water vapor partial pressure after the evaporator during the condensation time are calculated using formula (3) based on the relative humidity and the calculated saturated water vapor partial pressure. The air humidity before the evaporator and the air humidity after the evaporator during the condensation time are calculated using formula (4) based on the measured atmospheric pressure and the calculated actual water vapor partial pressure. The measured atmospheric pressure is taken as 101325 Pa.

[0105] Furthermore, based on the calculated air humidity, the total air humidity before the evaporator and the total air humidity after the evaporator are calculated separately. Further, using D1a=(∑d 1i ) / (t2--t1), D2a=(∑d 2i ) / (t2--t1) calculates the average air moisture content before and after the evaporator, where d 1i d represents all values ​​of the air moisture content before the evaporator during the condensation time. 2i This represents all values ​​of the air moisture content after passing through the evaporator during the condensation time.

[0106] Therefore, the average humidity of the air can be accurately calculated, and this average value can be used to calculate the average air volume, thereby improving the accuracy of washing machine control.

[0107] Optionally, the method further includes:

[0108] When the condensate in the tank reaches the rated condensate volume, the drainage program is started, and the water pump is used to drain the condensate collected in the tank during the condensation time. After the condensate in the tank is drained, the drainage program is turned off, and when the condensate in the tank reaches the rated condensate volume, the average air volume is recalculated to determine whether the filter device needs to be cleaned.

[0109] In this embodiment of the application, the drainage procedure may refer to a procedure in which a water pump is automatically started to drain the condensate when the condensate reaches a set value.

[0110] For example, when the washing machine system detects that the condensate in the tank has reached the rated condensate volume, such as 10ml, the washing machine automatically starts the drainage program and uses a water pump to drain the condensate collected in the tank within 10 minutes of condensation. Furthermore, after the washing machine system detects that the condensate in the tank has been drained, the washing machine automatically shuts off the drainage program and recalculates the average airflow when the condensate volume in the tank reaches the rated condensate volume of 10ml to determine whether the filter needs to be cleaned.

[0111] Therefore, the method provided in this application embodiment has the determination logic for automatically cleaning the filter device and the timing for automatically cleaning the filter device, thereby improving effectiveness.

[0112] For example, Figure 4 This is a schematic diagram of the architecture of a washing machine provided in an embodiment of this application; as shown... Figure 4 As shown, the washing machine's air duct is equipped with a cleaning device, a filter device, a first temperature and humidity sensor 3011, a second temperature and humidity sensor 3012, an evaporator 302, a condenser 303, a liquid level sensor 401, a water tank 402, a drain outlet 403, and a heat pump drain pipe 407. The first temperature and humidity sensor 3011 is located before the evaporator 302, and the second temperature and humidity sensor 3012 is located after the evaporator 302. One end of the water tank 402 is connected to the liquid level sensor 401, and the other end of the water tank 402 is connected to the drain outlet 403. The filtration device may include a filter screen 406 and an air outlet 404. The cleaning device may include a spray arm 405, which sprays water 408 to clean the filter screen 406. The washing machine may also include a heat pump housing 304, an outer drum 410 and an inner drum 409. The outer drum 410 and the inner drum 409 are used to wash and dry the clothes to be washed. Furthermore, during the operation of the washing machine, the condensate, spray water and water spun out from the clothes to be washed are all controlled by a drain pump 412 and discharged through the washing machine drain pipe 411.

[0113] In conjunction with the above embodiments, Figure 5 This is a schematic diagram illustrating the principle of a washing machine control method provided in an embodiment of this application. Figure 5 As shown, the execution method steps of this application embodiment include:

[0114] Step A: Start the drying program.

[0115] Step B: Obtain the required data. The process includes: real-time measurement of temperature and humidity data before and after the evaporator by temperature and humidity sensors; real-time moisture content d1 and d2 before and after the evaporator by the washing machine system; triggering the liquid level sensor when condensate enters the water tank and starting timer t1; when the condensate reaches the rated value m, it is discharged by the drain pump, at which point timer t2 begins, and step C is executed.

[0116] Step C: Based on the Hyland-Wexler formula, calculate the total humidity of the air before the evaporator and the total humidity of the air after the evaporator during the time period t2-t1, and then calculate the humidity based on the formula D1a=(∑d 1i ) / (t2-t1), D2a=(∑d 2i The formula (t2-t1) is used to calculate the average humidity of the air before and after the evaporator. Further, based on the formula... Calculate the average air volume during the time period t2-t1, and determine whether Q is greater than Q. 额 *50%, where Q represents the rated air volume. If yes, proceed to step B; otherwise, proceed to step D.

[0117] Step D: Start the spray program to clean the filter screen and start the drain pump to drain the water. Determine whether the air volume within a certain period of time is greater than the threshold. If yes, continue to step B until drying is finished. If not, start the spray program again to clean the filter screen.

[0118] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0119] Figure 6 This is a schematic diagram of the structure of a control device for a washing machine provided in an embodiment of this application, as shown below. Figure 6 As shown, the control device of the washing machine includes:

[0120] The acquisition module 610 is used to acquire temperature and humidity information sent by temperature and humidity sensors respectively installed before and after the evaporator; wherein the temperature and humidity information includes real-time dry-bulb temperature and relative humidity; the first calculation module 620 is used to calculate the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time using the temperature and humidity information during the condensation time; wherein the condensation time is the time required for the condensate discharged from the condenser to reach the rated condensate volume; the second calculation module 630 is used to calculate the average air volume during the condensation time using the calculated average value and the rated condensate volume, and determine whether the average air volume is greater than a first threshold; the processing module 640 is used to start the spray program to clean the filter device when the average air volume is not greater than the first threshold.

[0121] Optionally, the washing machine further includes a water tank and a liquid level sensor, the water tank being used to collect condensate discharged from the condenser, and the liquid level sensor being used to sense changes in the amount of condensate in the water tank; the first calculation module 620 is further used for:

[0122] The condensation time is obtained by detecting the first time when condensate begins to enter the water tank and the second time when the condensate in the water tank reaches the rated condensation volume using a liquid level sensor; the second time is subtracted from the first time.

[0123] Optionally, the average air volume during the condensation time is determined by the following formula:

[0124]

[0125] Where Q represents the average air volume during the condensation time, t2 represents the second time, t1 represents the first time, m represents the rated condensate water volume, D2a represents the average humidity of the air after the evaporator during the condensation time, and D1a represents the average humidity of the air before the evaporator during the condensation time.

[0126] Optional, processing module 640, specifically used for:

[0127] Start the spray program, control the spray arm to spray a certain amount of water to clean the filter device within a certain time, and drain the water used to clean the filter device; after cleaning, determine whether the average air volume within the preset time is greater than the second threshold; if not, start the spray program again to clean the filter device.

[0128] Optionally, the first calculation module 610 is specifically used for:

[0129] Based on the Hyland-Wexler formula, the actual partial pressure of water vapor before the evaporator and the actual partial pressure of water vapor after the evaporator during the condensation time are calculated using the real-time dry-bulb temperature and relative humidity before and after the evaporator during the condensation time, respectively. The calculated actual partial pressure of water vapor and the measured atmospheric pressure are then used to calculate the air humidity before the evaporator and the air humidity after the evaporator during the condensation time.

[0130] Using the obtained air humidity during the condensation time, calculate the total air humidity before the evaporator and the total air humidity after the evaporator, respectively, and determine the mean air humidity before the evaporator and the mean air humidity after the evaporator during the condensation time based on the calculated total air humidity.

[0131] Optionally, the processing module 640 is also used for:

[0132] When the condensate in the tank reaches the rated condensate volume, the drainage program is started, and the water pump is used to drain the condensate collected in the tank during the condensation time. After the condensate in the tank is drained, the drainage program is turned off, and when the condensate in the tank reaches the rated condensate volume, the average air volume is recalculated to determine whether the filter device needs to be cleaned.

[0133] The specific implementation principle and effects of the washing machine control device provided in this application embodiment can be found in the relevant descriptions and effects of the above embodiments, and will not be elaborated further here.

[0134] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application, such as... Figure 7 As shown, the electronic device includes: a processor 720, and a memory 710 communicatively connected to the processor 720; the memory 710 stores computer-executable instructions; the processor 720 executes the computer-executable instructions stored in the memory 710, causing the processor 720 to perform actions to implement the present application. Figure 2 The corresponding embodiment provides a control method for a washing machine.

[0135] The memory 710 and the processor 720 are connected via a bus 730.

[0136] For relevant instructions, please refer to the corresponding text. Figure 2 The relevant descriptions and effects corresponding to the steps will be understood, and will not be elaborated on here.

[0137] This application also provides a washing machine, including: a filter, an evaporator, a condenser, and... Figure 7 The aforementioned electronic device.

[0138] This application also provides a computer-readable storage medium storing computer program execution instructions. When executed by a processor, the computer program executes a washing machine control method as described in any of the foregoing embodiments of this application.

[0139] This application also provides a chip for executing instructions, which is used to perform the washing machine control method executed by the washing machine as described in any of the foregoing embodiments of this application.

[0140] This application also provides a computer program product, which includes a computer program stored in a storage medium. At least one processor can read the computer program from the storage medium. When the at least one processor executes the computer program, it can implement the washing machine control method executed by the washing machine as in any of the foregoing embodiments of this application.

[0141] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or modules may be electrical, mechanical, or other forms.

[0142] The modules described as separate components may or may not be physically separate. Similarly, the components shown as modules may or may not be physical modules; they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0143] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated module can be implemented in hardware or in a combination of hardware and software functional modules.

[0144] The integrated modules described above, implemented as software functional modules, can be stored in a computer-readable storage medium. These software functional modules, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute some steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0145] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the protection scope of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this application.

Claims

1. A control method for a washing machine, characterized in that, The washing machine's air duct is sequentially equipped with a filter, an evaporator, and a condenser, which are used to filter, evaporate, and condense the air within the duct, respectively; the method includes: Acquire temperature and humidity information from temperature and humidity sensors located at the front and rear positions of the evaporator; wherein, the temperature and humidity information includes real-time dry-bulb temperature and relative humidity; Using the temperature and humidity information during the condensation time, the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time are calculated; wherein, the condensation time is the time required for the condensate discharged from the condenser to reach the rated condensate volume. The average air volume during the condensation time is calculated using the calculated mean and the rated condensate water volume, and it is determined whether the average air volume is greater than the first threshold. If not, start the spray program to clean the filter device.

2. The method according to claim 1, characterized in that, The washing machine further includes a water tank and a liquid level sensor. The water tank is used to collect condensate discharged from the condenser, and the liquid level sensor is used to sense changes in the amount of condensate in the water tank. The method further includes: The system detects the first time when condensate begins to enter the water tank and the second time when the condensate in the water tank reaches the rated condensate volume using a liquid level sensor. Subtract the second time from the first time to obtain the condensation time.

3. The method according to claim 2, characterized in that, The average air volume during the condensation time is determined by the following formula: Where Q represents the average air volume during the condensation time, t2 represents the second time, t1 represents the first time, m represents the rated condensate water volume, D2a represents the average humidity of the air after the evaporator during the condensation time, and D1a represents the average humidity of the air before the evaporator during the condensation time.

4. The method according to claim 1, characterized in that, Initiate the spray program to clean the filter device, including: Start the spraying program, control the spray arm to spray a certain amount of water to clean the filter device within a certain time, and then drain the water used to clean the filter device. After cleaning is completed, determine whether the average air volume within a preset time is greater than the second threshold. If not, restart the spray program to clean the filter device.

5. The method according to claim 1, characterized in that, Using the temperature and humidity information during the condensation time, calculate the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time, including: Based on the Hyland-Wexler formula, the actual partial pressure of water vapor before the evaporator and the actual partial pressure of water vapor after the evaporator during the condensation time are calculated using the real-time dry-bulb temperature and relative humidity before and after the evaporator during the condensation time, respectively. The calculated actual partial pressure of water vapor and the measured atmospheric pressure are then used to calculate the air humidity before the evaporator and the air humidity after the evaporator during the condensation time. Using the obtained air humidity during the condensation time, calculate the total air humidity before the evaporator and the total air humidity after the evaporator, respectively, and determine the mean air humidity before the evaporator and the mean air humidity after the evaporator during the condensation time based on the calculated total air humidity.

6. The method according to any one of claims 2-5, characterized in that, Also includes: When the condensate in the water tank reaches the rated condensate volume, the drainage program is started, and the water pump is used to discharge the condensate collected in the water tank during the condensation time. After the condensate in the tank is drained, the drainage program is turned off, and the average air volume is recalculated when the condensate in the tank reaches the rated condensate volume to determine whether the filter device needs to be cleaned.

7. A control device for a washing machine, characterized in that, The device includes: The acquisition module is used to acquire temperature and humidity information sent by temperature and humidity sensors respectively set at the front and rear positions of the evaporator; wherein, the temperature and humidity information includes real-time dry-bulb temperature and relative humidity; The first calculation module is used to calculate the average humidity of the air before the evaporator and the average humidity of the air after the evaporator during the condensation time using the temperature and humidity information during the condensation time; wherein, the condensation time is the time required for the condensate discharged from the condenser to reach the rated condensate volume. The second calculation module is used to calculate the average air volume during the condensation time using the calculated average value and the rated condensate water volume, and to determine whether the average air volume is greater than the first threshold. The processing module is used to initiate a spray program to clean the filter device when the average air volume is not greater than a first threshold.

8. An electronic device, characterized in that, include: A processor, and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1-6.

9. A washing machine, characterized in that, include: The filter, the evaporator, the condenser, and the electronic device as described in claim 8.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1-6.

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