Washing machine

Abstract

This application discloses a washing machine, including: an outer drum, an inner drum, an air inlet duct structure, an air outlet duct structure, a fan, a first heater, a second heater, a first temperature sensor, a second temperature sensor, and a controller. The outer drum has a water-filled cavity including a main chamber and a heating chamber. The controller is further configured to: in the washing state, acquire data collected by the first, second, and third temperature sensors respectively, wherein the data collected by the third temperature sensor is used for process control during the washing state, while the data collected by the first and second temperature sensors are not used for process control during the washing state; in the drying state, acquire data collected by the first, second, and third temperature sensors respectively, and use this data for process control during the drying state according to a first model. This application can achieve the effect of improving control accuracy.

Description

Technical Field

[0001] This application relates to home appliance control technology, and includes, but is not limited to, a washing machine. Background Technology

[0002] With the rapid development of electronic technology, more and more household appliances have become widely used, bringing great convenience to people's lives. For example, some newly launched washing machines not only have traditional washing functions, but also corresponding drying functions.

[0003] In related technologies, these washing machines with drying functions can be direct-venting, condensing, or any other possible type. Therefore, these washing machines are generally equipped with multiple temperature sensors to measure the temperature inside the air duct and / or the temperature inside the washing machine cavity, and then control the heating components in these washing machines based on the temperature data measured by the temperature sensors.

[0004] However, because washing machines have various operating modes and these multiple temperature sensors are generally located in different places, unrelated temperature sensors may affect the control results when controlling the washing machine. Therefore, providing a solution to improve the accuracy of washing machine control is a pressing technical problem that needs to be solved. Summary of the Invention

[0005] In view of this, the washing machine provided in this application embodiment can achieve the effect of improving control accuracy. The washing machine provided in this application embodiment achieves this as follows:

[0006] In one aspect of this application, a washing machine is provided, the washing machine comprising:

[0007] Box;

[0008] A drum body for washing or drying clothes; the drum body includes:

[0009] An outer cylinder has a water-holding cavity formed inside it. The water-holding cavity includes a main cavity and a heating cavity. The heating cavity is located at the bottom of the main cavity and is in communication with the main cavity.

[0010] The inner cylinder is disposed within the main cavity;

[0011] A drying air duct structure, wherein a drying air duct is formed within the drying air duct structure, and the drying air duct is connected to the water-containing cavity; the drying air duct structure includes:

[0012] An air inlet duct structure is provided to connect the water-containing chamber with the drying duct, so that the gas in the water-containing chamber flows into the drying duct.

[0013] An air outlet duct structure is provided to connect the drying duct and the heating chamber, so that the gas from the drying duct flows into the water-holding chamber.

[0014] A fan is installed inside the drying duct so that the gas in the water chamber enters the drying duct through the air inlet duct structure, and the gas in the drying duct enters the water chamber through the air outlet duct structure.

[0015] A first heater is disposed in the drying air duct and is used to heat the gas in the drying air duct;

[0016] A second heater is disposed in the heating chamber and is used to heat the liquid or gas in the heating chamber;

[0017] The washing machine is characterized in that it further includes:

[0018] A first temperature sensor is installed in the air inlet duct structure to detect the air inlet temperature;

[0019] A second temperature sensor is installed in the air outlet duct structure to detect the air outlet temperature;

[0020] A third temperature sensor is installed inside the heating chamber to detect the temperature of the gas or liquid in the heating chamber.

[0021] The controller is used to control the washing machine to be in the washing and drying states;

[0022] The washing machine is characterized in that it further includes:

[0023] A first temperature sensor is installed in the air inlet duct structure to detect the air inlet temperature;

[0024] A second temperature sensor is installed in the air outlet duct structure to detect the air outlet temperature;

[0025] A third temperature sensor is installed at a position corresponding to the first heater and the second heater, and is used to detect the temperature of the gas in the heating chamber or the temperature of the liquid in the heating chamber;

[0026] The controller is used to control the washing machine to be in washing or drying mode;

[0027] The controller is further configured as follows:

[0028] During the washing state, the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor are obtained respectively. The data collected by the third temperature sensor is used for process control of the washing state, while the data collected by the first temperature sensor and the second temperature sensor are not used for process control of the washing state.

[0029] During the drying state, the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor are obtained respectively, and the data are used for process control of the drying state according to the first model.

[0030] In some embodiments, the controller is configured to:

[0031] Based on the data collected by the third temperature sensor, the target parameters of the second heater are adjusted to regulate the temperature of the liquid or gas in the water-filled chamber.

[0032] During the drying process, the target parameters of the first heater are adjusted based on the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor, so as to regulate the temperature of the air inside the cylinder.

[0033] The target parameters include operating power or switching status.

[0034] In this way, during the washing cycle, the control results of the washing machine can be minimized by the data collected by temperature sensors unrelated to the washing cycle when adjusting the temperature of the liquid in the water chamber. Furthermore, no additional control hardware or logic is needed during the washing cycle to cut off the data collected by unrelated temperature sensors, simplifying the control feedback circuit and control logic. During the drying cycle, all temperature data relevant to the drying operation can be used to control the washing machine, reusing temperature sensors in the washing space and the drying duct. This allows for more comprehensive temperature parameter collection from multiple points within the drying space during the drying cycle, thereby improving the accuracy of the washing machine's control during the drying cycle.

[0035] In some embodiments, the controller is configured to:

[0036] In the washing state, the system receives and calls the data collected by the third temperature sensor, but does not receive the data collected by the first temperature sensor and the second temperature sensor.

[0037] During the drying process, the system receives and utilizes the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.

[0038] In some embodiments, the controller is configured to:

[0039] In the washing state, the system receives data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor, calls up the data collected by the third temperature sensor, and does not call up the data collected by the first temperature sensor and the second temperature sensor.

[0040] During the drying process, the system receives and utilizes the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.

[0041] In this way, during the washing cycle, the controller can receive but not call up, or not receive, the data collected by the first and second temperature sensors that do not need to be used for subsequent control, thereby reducing the processing load on the controller; and during the drying cycle, it can use as much temperature data as possible related to the drying operation of the washing machine to control the washing machine, thereby improving the accuracy of controlling the washing machine during the drying cycle.

[0042] In some embodiments, the controller is configured to:

[0043] In the washing state, the system receives and calls up the data collected by the third temperature sensor, and receives and deletes the data collected by the first temperature sensor and the second temperature sensor.

[0044] During the drying process, the system receives and utilizes the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.

[0045] In this way, after receiving the corresponding collected data, the controller can delete data that is not used for control. For example, in the washing state, the collected data from the first temperature sensor and the second temperature sensor can be deleted. This way, the storage space can be saved by signals that are not needed, and the utilization rate of storage space can be improved.

[0046] In some embodiments, the first model includes:

[0047] Determine the variation parameters of the data collected by the first temperature sensor within the target time period, wherein the variation parameters include the rate of change or the amount of change;

[0048] When the changing parameter is less than or equal to a first preset threshold, a first difference between the outlet air temperature and the gas temperature in the heating chamber is calculated based on the data collected by the second temperature sensor and the third temperature sensor.

[0049] If the first difference is less than the second preset threshold, reduce the operating power of the first heater or turn off the first heater.

[0050] In this way, the specific method of controlling the first heater can be selected according to different situations, which can improve the flexibility of control.

[0051] In some embodiments, the first model further includes:

[0052] If the changing parameter is greater than the first preset threshold, reduce the operating power of the first heater or turn off the first heater.

[0053] This can improve the safety of the drying process.

[0054] In some embodiments, the first model includes:

[0055] Determine the variation parameters of the data collected by the first temperature sensor within the target time period;

[0056] When the changing parameter is less than or equal to the first preset threshold, the outlet air temperature is calculated based on the data collected by the second temperature sensor, and the temperature of the gas in the heating chamber is calculated based on the data collected by the third temperature sensor.

[0057] If the outlet air temperature is greater than or equal to a first temperature threshold and the gas temperature in the heating chamber is greater than or equal to a second temperature threshold, reduce the operating power of the first heater or turn off the first heater.

[0058] In this way, the specific method of controlling the first heater can be selected according to different situations, which can improve the flexibility of control.

[0059] In some embodiments, the first model includes:

[0060] Determine the variation parameters of the data collected by the first temperature sensor within the target time period;

[0061] When the changing parameter is less than or equal to the first preset threshold, the outlet air temperature is calculated based on the data collected by the second temperature sensor, and the temperature of the gas in the heating chamber is calculated based on the data collected by the third temperature sensor.

[0062] If the slope of the outlet air temperature at the target time is greater than or equal to the first slope, and the slope of the gas temperature in the heating chamber at the target time is less than or equal to the second slope, reduce the operating power of the first heater or turn off the first heater.

[0063] This increases the flexibility of the controller when controlling the drying process.

[0064] In some embodiments, the controller is further configured to:

[0065] In the washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the first over-temperature protection threshold, a washing fault reminder signal is output.

[0066] During the drying process, when the outlet air temperature calculated based on the data collected by the second temperature sensor is greater than or equal to the second over-temperature protection threshold, and / or the gas temperature in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the third over-temperature protection threshold, a drying fault reminder signal is output.

[0067] This allows the washing machine to provide effective alerts and assistance to users when overheating occurs during washing or drying, thereby improving its usability.

[0068] In some embodiments, the controller is configured to:

[0069] In the washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the first preset temperature, the target parameters of the second heater are adjusted to reduce the temperature of the liquid in the water-filled chamber.

[0070] In the washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is less than or equal to the second preset temperature, the target parameters of the second heater are adjusted to increase the temperature of the liquid in the water-filled chamber.

[0071] In this way, temperature control can be achieved based on the data collected by the third temperature sensor during the washing process, thereby improving the safety of the washing machine when it is in the washing state.

[0072] The washing machine provided in this application embodiment includes a casing comprising a drum, an air inlet duct structure, an air outlet duct structure, a fan, a first heater, a second heater, a first temperature sensor, a second temperature sensor, a third temperature sensor, and a controller. The first temperature sensor detects the air inlet temperature of the air inlet duct structure, the second temperature sensor detects the air outlet temperature of the air outlet duct structure, and the third temperature sensor detects the temperature of the gas in the heating chamber or the temperature of the liquid in the heating chamber.

[0073] The controller is configured to: in the washing state, acquire data from the first temperature sensor, the second temperature sensor, and the third temperature sensor respectively, wherein the data acquired by the third temperature sensor is used for process control in the washing state, and the data acquired by the first temperature sensor and the second temperature sensor are not used for process control in the washing state; in the drying state, acquire data from the first temperature sensor, the second temperature sensor, and the third temperature sensor respectively, and use the data acquired by the third temperature sensor according to the first model for process control in the drying state.

[0074] As can be seen from the above, during the washing cycle, after obtaining the data collected by the first, second, and third temperature sensors, only the data collected by the third temperature sensor can be used for process control, without using the data collected by the first and second temperature sensors. This minimizes the influence of the first and second temperature sensors, which are unrelated to the washing operation, on the control results of the washing machine during the washing cycle, thereby improving the accuracy of control. Furthermore, during the washing cycle, in addition to obtaining the directly relevant data from the third temperature sensor, the data collected by the first and second temperature sensors are also obtained simultaneously. This provides all the temperature data of the washing machine during the washing cycle, ensuring the completeness of the obtained temperature data.

[0075] However, during the drying process, after obtaining the data collected by the first, second, and third temperature sensors, this data can be used to control the washing machine (specifically, the first heater). This allows for the use of as much temperature data as possible related to the drying operation during the drying process, thereby improving the accuracy of control during this phase.

[0076] In this way, the washing machine can be controlled using data collected from different temperature sensors when it is in different operating states. That is, temperature data relevant to the current operating state can be used for control, thereby minimizing the influence of irrelevant temperature data on the control results. This improves the accuracy of control, at least partially solving the technical problems mentioned in the background art. Attached Figure Description

[0077] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0078] Figure 1 This is a schematic diagram of a scenario disclosed in an embodiment of this application;

[0079] Figure 2 This is a schematic diagram of the structure of a washing machine disclosed in an embodiment of this application;

[0080] Figure 3 This is a control flowchart of a controller disclosed in an embodiment of this application;

[0081] Figure 4 This is a control flowchart of another controller disclosed in an embodiment of this application;

[0082] Figure 5 This is a control flowchart of another controller disclosed in the embodiments of this application;

[0083] Figure 6 This is a control flowchart of another controller disclosed in the embodiments of this application;

[0084] Figure 7 This is a control flowchart of another controller disclosed in the embodiments of this application;

[0085] Figure 8 This is a control flowchart of another controller disclosed in the embodiments of this application;

[0086] Figure 9 This is a control flowchart of another controller disclosed in the embodiments of this application. Detailed Implementation

[0087] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0088] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0089] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0090] It should be noted that the terms "first, second, third" used in the embodiments of this application are used to distinguish similar or different objects and do not represent a specific order of objects. It can be understood that "first, second, third" can be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0091] In related technologies, these washing machines with drying functions can be direct-venting, condensing, or any other possible type. Therefore, these washing machines are generally equipped with multiple temperature sensors to measure the temperature inside the air duct and / or the temperature inside the washing machine cavity, and then control the heating components in these washing machines based on the temperature data measured by the temperature sensors.

[0092] However, because washing machines have various operating modes and these multiple temperature sensors are generally located in different places, unrelated temperature sensors may affect the control results when controlling the washing machine. Therefore, providing a solution to improve the accuracy of washing machine control is a pressing technical problem that needs to be solved.

[0093] In view of this, embodiments of this application provide a washing machine, which includes a cabinet, a drum, an air inlet duct structure, an air outlet duct structure, a fan, a first heater, a second heater, a first temperature sensor, a second temperature sensor, a third temperature sensor, and a controller. The controller is configured to: in the washing state, acquire data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor respectively, wherein the data collected by the third temperature sensor is used for process control in the washing state, while the data collected by the first and second temperature sensors are not used for process control in the washing state; in the drying state, acquire data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor respectively, and use this data for process control in the drying state according to a first model. This achieves the effect of improving control accuracy.

[0094] Optionally, in this washing machine, the drum includes an outer drum with a water-holding cavity, the water-holding cavity including a main cavity and a heating cavity, the heating cavity being located at the bottom of the main cavity and communicating with the main cavity; and an inner drum disposed within the main cavity. The casing may further include an air inlet duct structure, an air outlet duct structure, a fan, a first heater, and a second heater. The air inlet duct structure is disposed within the outer drum, forming an air inlet duct; the air outlet duct structure is disposed within the outer drum, forming an air outlet duct, the air outlet duct being used to communicate between the inner drum and the outer drum, and to communicate between the outer drum and the outside of the casing; the fan is disposed within the casing and communicates with the air inlet duct; the first heater and the second heater are respectively disposed within the heating cavity; a first temperature sensor is disposed within the air outlet duct structure; a second temperature sensor is disposed within the air outlet duct structure; and a third temperature sensor is disposed at a position corresponding to the first heater and the second heater.

[0095] Furthermore, the air inlet duct is connected to the heating chamber, and the fan is used to allow air to enter the heating chamber and the inner drum from the air inlet duct. For example, if the washing machine uses a direct-vent drying method, the air inside the washing machine drum can be discharged to the outside of the machine through the air outlet duct; if the washing machine uses a condenser drying method, a condenser can also be installed in the washing machine, further allowing the air inside the washing machine drum to be blown to the condenser through the air outlet duct for cooling, and then the cooled air is sent back into the air inlet duct. This application does not limit this aspect.

[0096] This application uses a washing machine as an example for illustration. However, it does not imply that the functions configured or steps executed by the controller provided in this application embodiment can only be performed in a washing machine. In practical applications, the controller in any other possible electronic device can also be configured according to the example provided in this application embodiment. This application embodiment does not limit this.

[0097] For example, please see Figure 1 , Figure 1 This is a schematic diagram of a washing machine provided in an embodiment of this application. The washing machine can be as follows: Figure 1 The single-tub washing machine 100 shown in (a) may include a front panel 101 and a tub 102. The front panel 101 is provided with a first opening, and the tub opening of the tub 102 is connected to the first opening.

[0098] The washing machine can be as follows: Figure 1The twin-tub washing machine 110 shown in (b) may include a cabinet, on which a front panel 111 may be provided, and a second opening is provided on the front panel 111; the cabinet also includes two tubs 111a. Moreover, the openings of the two tubs 111a are respectively connected to the second opening.

[0099] The washing machine can be as follows: Figure 1 The three-tub washing machine shown in (c) may include a twin-tub washing machine 122 and a single-tub washing machine 133 stacked together. The twin-tub washing machine 122 includes a tub 1221 and a tub 1222; the single-tub washing machine 133 is provided with a tub 1331. Alternatively, the three-tub washing machine may also have three or more tubs arranged in one cabinet, which is not limited here.

[0100] Therefore, the washing machine provided in this application embodiment can be any possible single-tub or multi-tub washing machine, and this application embodiment does not limit it in this regard. It should be noted that... Figure 1 The washing machines shown are merely a few possible examples and do not represent that the washing machines provided in the embodiments of this application can only be like these. Figure 1 The washing machine shown can be a single-tub washing machine, a twin-tub washing machine, or a stacked triple-tub washing machine. Alternatively, the washing machine can also be a multi-tub washing machine with three or more washing tubs. This application does not limit the specific type of washing machine.

[0101] It should be noted that the washing machine disclosed in the embodiments of this application may also include Figure 1 Other components not shown in the diagram may include, for example, any possible components such as a motor, transmission mechanism, drainage device, and power supply device in the washing machine. Figure 1 The components shown should not be construed as limiting the washing machine disclosed in the embodiments of this application.

[0102] The internal structure and control process of the washing machine proposed in this application embodiment can be applied to, for example... Figure 1 The washing machine shown in this application embodiment is not limited in this respect.

[0103] To make the objectives and technical solutions of this application clearer and more intuitive, the washing machine provided in the embodiments of this application will be explained in detail below with reference to the accompanying drawings.

[0104] Figure 2This application provides a schematic diagram of the structure of a washing machine, which may include, but is not limited to, devices such as temperature sensors and heaters. The washing machine may also include any controller with functions such as processing, analog-to-digital conversion, control, identification, and computation. For example, the controller may specifically be any possible processing unit such as a central processing unit (CPU), microprocessor (MPU), digital signal processor (DSP), or field-programmable gate array (FPGA); or, for example, the controller may be a combination of at least two of the following devices: CPU, MPU, DSP, FPGA, digital-to-analog converter (DAC), and analog-to-digital converter (ADC). This application does not limit the specific implementation of this method.

[0105] See Figure 2 This application provides a washing machine 200, exemplified by a washing machine 200 employing a condenser-type drying method and using circulating air between the air inlet and outlet ducts. The washing machine 200 includes a cabinet 201, which includes:

[0106] A drum body for washing or drying clothes, the drum body comprising:

[0107] The outer cylinder 202 has a water-holding cavity formed inside it. The water-holding cavity includes a main cavity 2021 and a heating cavity 2022. The heating cavity 2022 is located at the bottom of the main cavity 2021 and is in communication with the main cavity 2021.

[0108] The inner drum 203 is disposed in the main cavity 2021. The inner drum 203 is provided with multiple through holes for liquid circulation, and may also be provided with at least one lifting rib 2031 for lifting and tumbling clothes to enhance the washing effect.

[0109] A drying air duct structure is provided, wherein a drying air duct 204 is formed within the drying air duct structure, and the drying air duct 204 is connected to the water-containing cavity; the drying air duct structure includes:

[0110] An air inlet duct structure is provided to connect the water-containing chamber with the drying duct 204, so that the gas in the water-containing chamber flows into the drying duct 204.

[0111] An air outlet duct structure is provided to connect the drying duct 204 with the heating chamber 2022, so that the gas from the drying duct 204 flows into the water-holding chamber.

[0112] A fan 205 is disposed in the drying air duct 204 so that the gas in the water-containing chamber enters the drying air duct 204 through the air inlet structure, and the gas in the drying air duct 204 enters the water-containing chamber through the air outlet structure.

[0113] The first heater R1 is disposed in the drying air duct 204 and is used to heat the gas in the drying air duct 204;

[0114] The second heater R2 is disposed in the heating chamber 2022 and is used to heat the liquid or gas in the heating chamber 2022;

[0115] In this embodiment, the first heater R1 can be disposed in the drying air duct 204. As an example, the first heater R1 can be disposed in the air inlet duct structure to heat the air supplied from the air inlet duct structure. Generally, the first heater R1 needs to withstand higher temperatures (for example, condenser drying methods need to withstand temperatures above 200°C). Therefore, the first heater R1 needs to have high-temperature resistance. The first heater R1 can be a positive temperature coefficient (PTC) ceramic heater, an electric heating wire heater encapsulated in a metal tube, or any other possible heater. This application embodiment does not limit this.

[0116] In this embodiment, the second heater R2 can be disposed at the bottom of the heating chamber 2022 to heat the liquid in the heating chamber 2022 and the main body chamber 2021. The second heater R2 can be used to heat the cold water in the water-holding chamber during the washing process, raising the water temperature to the required washing temperature, and then using water as a medium to transfer heat to the clothes placed in the inner drum 203. It is evident that the second heater R2 needs to withstand a relatively low temperature (generally below 80°C). Therefore, the second heater R2 can be an electric heating wire heater encapsulated in a metal tube, or a heating wire made of materials such as nickel-chromium alloy. This application embodiment does not limit this.

[0117] Furthermore, in order for the washing machine 200 to achieve the corresponding functions and effects, in this embodiment of the application, the washing machine may further include: a first temperature sensor T1, a second temperature sensor T2, and a third temperature sensor T3.

[0118] The first temperature sensor T1 is installed in the air inlet duct structure to detect the air inlet temperature, which can be understood as detecting the temperature of the gas after being heated by the first heater R1. The second temperature sensor T2 is installed in the air outlet duct structure to detect the air outlet temperature. The third temperature sensor T3 is installed in the heating chamber 2022 to detect the temperature of the liquid or gas in the heating chamber 2022.

[0119] In this embodiment, the inlet air temperature refers to the temperature of the gas heated by the first heater R1 in the inlet air duct structure; the outlet air temperature refers to the temperature of the gas in the outlet air duct structure.

[0120] Controller ( Figure 2 (Not shown in the image) This controller is used to control the washing machine to be in washing or drying mode. Specifically, the controller can be used to control any possible component or device within the washing machine to change its operating state and / or operating mode. For example, the controller can be used to control any possible parameters such as the power and on / off status of the first heater R1 and / or the second heater R2; the controller can also be used to control any possible parameters such as the speed and on / off status of the fan 205. This application does not limit this aspect.

[0121] Furthermore, the first temperature sensor T1, the second temperature sensor T2, and the third temperature sensor T3 can each be used to send the detected data to the controller. That is, the controller can be connected to the first temperature sensor T1, the second temperature sensor T2, and the third temperature sensor T3 respectively, and the controller can also be connected to the first heater R1 and the second heater R2 respectively.

[0122] In this embodiment, the washing state can refer to the process of filling the water chamber of the washing machine with water, and driving the inner drum 203 of the washing machine to rotate through components such as the motor and transmission mechanism, so that the washing machine can complete the cleaning operation of the clothes placed in the inner drum 203 according to preset parameters. Furthermore, after the washing machine is in this washing state and has completed cleaning the clothes, the washing machine can also open the corresponding drain assembly to drain the liquid from the water chamber of the washing machine into the drum.

[0123] In this embodiment, the drying state can refer to the state in which the liquid in the water chamber of the washing machine is drained, and the clothes placed in the inner drum 203 are dried by components such as the fan 205, air inlet channel structure, air outlet channel structure, and first heater R1 (such as the condenser) in the washing machine, so as to achieve the working state of evaporating the moisture of the clothes in the inner drum 203.

[0124] For example, taking a condenser-type washing machine as an example, the working principle of this washing machine in drying mode is roughly as follows:

[0125] As an example, the washing machine also includes a condensing assembly, which may include a condensing tray. The condensing tray is fixedly installed on the inner wall of the outer drum 202, and a condensing cavity is formed between the condensing tray and the inner wall of the outer drum 202. A condensing vent and a condensing exhaust vent are provided on the outer side of the condensing cavity. An exhaust fan is provided at the condensing exhaust vent, and the condensing exhaust vent is located above the condensing vent. Cooler air enters the condensing cavity from the condensing vent, realizing airflow within the condensing cavity.

[0126] When the gas heated by the first heater R1 in the air inlet duct structure enters the inner drum 203 through the drying air duct 204, the heated gas carries the moisture on the clothes in the inner drum 203 to form high-temperature water vapor. The high-temperature water vapor passes through the inner drum 203 and comes into contact with the condenser plate. The water vapor in the high-temperature water vapor condenses into liquid water upon contact with the low-temperature condenser plate, and the liquid water is discharged from the drain outlet of the washing machine. The air in the high-temperature water vapor comes into contact with the low-temperature condenser plate to form dry and cold gas. Under the action of the fan, the dry and cold gas enters the air inlet duct structure, is heated by the first heater R1, and then enters the inner drum 203 through the drying air duct 204 to circulate and dry the clothes.

[0127] In addition to the washing and drying states, the washing machine may also include a spin-drying state. For example, after the washing machine completes the washing state, it can be controlled to enter the spin-drying state. Specifically, the inner drum 203 in the washing machine is driven to rotate at high speed by components such as the motor and transmission mechanism, so that the washing machine can complete the cleaning operation of the clothes placed in the inner drum 203 according to preset parameters.

[0128] Among them, see Figure 3 The controller is also configured to perform the following steps:

[0129] Step 301: Under the washing state, the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor are obtained respectively.

[0130] Among them, the third temperature sensor ( Figure 2 The data collected by the first temperature sensor (T3) is used for process control of this washing state. Figure 2 T1 in the middle) and the second temperature sensor ( Figure 2 The data collected in T2 is not used for process control of this washing state.

[0131] In this embodiment, the data collected by the first temperature sensor is used to indicate the temperature in the air inlet duct structure, that is, the air inlet temperature of the washing machine; the data collected by the second temperature sensor is used to indicate the temperature in the air outlet duct structure, that is, the air outlet temperature of the washing machine; and the data collected by the third temperature sensor is used to indicate the temperature of the gas in the heating chamber or the temperature of the liquid in the heating chamber.

[0132] Specifically, the process control of this washing state can refer to a control strategy that uses automation technology to monitor, adjust, and optimize parameters (such as temperature, pressure, flow rate, liquid level, pH value, etc.) of the washing machine during operation in this washing state in real time. In this embodiment, the process control of this washing state may include: in order to control the parameters placed in the inner drum during this washing state ( Figure 2The clothes in 203) are cleaned at high temperature, and the second heater in the washing machine ( Figure 2 The control method uses the parameter R2 in the control.

[0133] Understandably, during the washing cycle, water may need to be added to the washing machine's water chamber to clean the clothes placed in the inner drum. If the user selects a heated washing mode, the second heater will start working to heat the liquid in the water chamber (or the heating chamber). In this case, it is necessary to detect the temperature of the liquid in the water chamber (or the heating chamber) and then control the second heater to adjust the washing temperature during the washing cycle. Furthermore, during the washing cycle, the drying air duct in the drying air duct structure... Figure 2 204 in the middle) and the heating chamber ( Figure 2 There is generally no active airflow between the air inlet and outlet ducts in the washing machine (as described in 2022), and the air inlet and outlet ducts can even be closed. Therefore, the temperature within the drying duct structure remains essentially unchanged. So, the fan in this washing machine (… Figure 2 206 in the middle) and the first heater ( Figure 2 R1 in the first heater generally does not work, so there is no need to control the fan and / or the first heater.

[0134] Therefore, after obtaining the data collected by the first, second, and third temperature sensors, process control for the washing state can be performed using only the data collected by the third temperature sensor, without using the data collected by the first and second temperature sensors. This minimizes the influence of the first and second temperature sensors, which are unrelated to the washing operation, on the control results of the washing machine during the washing process. Furthermore, no additional control hardware or logic is needed during the washing process to cut off the data collected by unrelated temperature sensors, simplifying the control feedback circuit and control logic.

[0135] In addition, during this washing cycle, besides obtaining the data collected by the directly related third temperature sensor, the data collected by the first and second temperature sensors are also obtained. In this way, all the temperature data of the washing machine during this washing cycle can be obtained, which can ensure the integrity of the obtained temperature data. Without adding hardware or software logic, parameters that do not need to be controlled can be left aside. There is no need to do too much complicated processing, and it will not affect the product performance or reliability.

[0136] Step 302: Under the drying state, the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor are obtained respectively, and used for process control of the drying state according to the first model.

[0137] In this embodiment, the first model can refer to a control model used to implement the drying function of the washing machine. That is, the first model can be a programmable system, specifically used to take the data collected by each temperature sensor as input signals through corresponding mapping relationships or logic algorithms, and then convert the input signals into output commands for controlling the corresponding components in the washing machine, so that the washing machine enters or exits the drying state, and adjusts the parameters of the first heater when the washing machine is in the drying state.

[0138] Understandably, during the drying process, since the clothes placed in the inner drum need to be dried, it may be necessary to turn on the washing machine's fan to allow air to flow between the drying duct, the heating chamber, and the main chamber. At the same time, the first heater will also start working to heat the gas in the air inlet duct structure.

[0139] Specifically, the drying process can be divided into an initial stage, an intermediate stage, and a final stage. In the initial stage, the first heater heats the air supplied to the heating chamber through the air inlet duct structure, causing the air in the heating chamber and the main body cavity to rise rapidly to a set range. This causes the moisture on the surface of the clothes placed in the inner drum to evaporate. Since the evaporation of moisture absorbs heat, the temperature of the air discharged from the air outlet duct structure is lower than that of the air in the heating chamber. In the intermediate stage, as drying progresses and the moisture content of the clothes decreases, the heat absorbed during moisture evaporation decreases, and the air temperature in the heating chamber tends to stabilize. The temperature of the air discharged from the air outlet duct structure also gradually rises. In the final stage, when the clothes are nearly dry, the air's ability to carry water vapor increases, and moisture evaporates faster under the same amount of heat. This causes the heat energy in the heating chamber and the main body cavity to be consumed rapidly, which may result in a brief drop in the air temperature in the heating chamber and the main body cavity. At the same time, because the amount of moisture evaporation is greatly reduced, the temperature of the air in the air outlet duct structure continues to rise, making the outlet temperature close to or slightly higher than the temperature of the gas in the heating chamber.

[0140] In this situation, it is necessary to detect the air temperature inside the washing machine to determine whether the clothes inside the washing machine have been dried, and to control the parameters of the first heater in order to adjust the drying process of the washing machine.

[0141] Therefore, after obtaining the data collected by the first, second, and third temperature sensors, the washing machine (specifically, the first heater) can be controlled using this data. In this way, during the drying process, all temperature data related to the drying operation can be used to control the washing machine. By reusing temperature sensors within the washing chamber and the drying duct, the washing machine can collect temperatures at multiple points within the drying chamber, resulting in more comprehensive temperature parameters and improved accuracy in controlling the washing machine during the drying process.

[0142] In this embodiment, a washing machine is equipped with a cabinet, which includes a drum, a drying air duct structure (including an inlet air duct structure and an outlet air duct structure), a fan, a first heater, a second heater, a first temperature sensor, a second temperature sensor, a third temperature sensor, and a controller. The first temperature sensor is used to detect the inlet air temperature of the inlet air duct structure, the second temperature sensor is used to detect the outlet air temperature of the outlet air duct structure, and the third temperature sensor is used to detect the temperature of the gas in the heating chamber or the temperature of the liquid in the heating chamber.

[0143] The controller is configured to: in the washing state, acquire data from the first temperature sensor, the second temperature sensor, and the third temperature sensor respectively, wherein the data acquired by the third temperature sensor is used for process control in the washing state, and the data acquired by the first temperature sensor and the second temperature sensor are not used for process control in the washing state; in the drying state, acquire data from the first temperature sensor, the second temperature sensor, and the third temperature sensor respectively, and use the data acquired by the third temperature sensor according to the first model for process control in the drying state.

[0144] As can be seen from the above, during the washing cycle, after obtaining the data collected by the first, second, and third temperature sensors, only the data collected by the third temperature sensor can be used for process control, without using the data collected by the first and second temperature sensors. This minimizes the influence of the first and second temperature sensors, which are unrelated to the washing operation, on the control results of the washing machine during the washing cycle, thereby improving the accuracy of control. Furthermore, during the washing cycle, in addition to obtaining the directly relevant data from the third temperature sensor, the data collected by the first and second temperature sensors are also obtained simultaneously. This provides all the temperature data of the washing machine during the washing cycle, ensuring the completeness of the obtained temperature data.

[0145] However, during the drying process, after obtaining the data collected by the first, second, and third temperature sensors, this data can be used to control the washing machine (specifically, the first heater). This allows for the use of as much temperature data as possible related to the drying operation during the drying process, thereby improving the accuracy of control during this phase.

[0146] This allows the washing machine to be controlled using data collected from different temperature sensors depending on its operating state. In other words, temperature data relevant to the current operating state can be used for control, thus minimizing the influence of irrelevant temperature data on the control results. This improves the accuracy of control.

[0147] In one possible implementation, see [link to relevant documentation]. Figure 4 The controller is configured to perform the following steps:

[0148] Step 303: In this washing state, the target parameters of the second heater are adjusted according to the data collected by the third temperature sensor, so as to regulate the temperature of the liquid in the water chamber.

[0149] In this embodiment, the target parameters of the second heater may include the operating power or switching status of the second heater.

[0150] It can be understood that, in the washing state, the data collected by the third temperature sensor is used to adjust the target parameters of the second heater, while the data collected by the first temperature sensor and the second temperature sensor are not used to adjust the target parameters of the second heater, so as to regulate the temperature of the liquid or gas in the water chamber. The target parameters include the operating power or the on / off state.

[0151] It is worth noting that, as described in the above embodiments, when the washing machine is in the washing state, the fan and the first heater do not need to operate, and the temperature in the air inlet and outlet ducts remains essentially unchanged. The data collected by the third temperature sensor during the washing state indicates the temperature of the liquid in the heating chamber. Therefore, the target parameters of the second heater can be adjusted solely based on the data collected by the third temperature sensor. This minimizes the influence of data from the first and second temperature sensors, which are unrelated to the washing state, on the control results of the washing machine when adjusting the temperature of the liquid in the water chamber, thereby improving the accuracy of controlling the washing machine during the washing state.

[0152] Step 304: In the drying state, the target parameters of the first heater are adjusted according to the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor, so as to regulate the temperature of the air inside the cylinder.

[0153] In this embodiment, the target parameters of the first heater include the operating power or switching state of the first heater.

[0154] Specifically, when adjusting the target parameters of the first heater based on the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor, this can be achieved using the first model described above. This application does not limit this specific implementation.

[0155] It is worth noting that, as described in the above embodiments, when the washing machine is in the drying state, the fan and the first heater start working, and there is generally no active airflow between the air inlet duct, the heating chamber, and the air outlet duct. The temperature in the air outlet duct changes significantly with different stages of the drying process. The data collected by the third temperature sensor during the drying state can indicate the temperature of the gas in the heating chamber. Therefore, the target parameters of the first heater can be adjusted based on the data collected by the first, second, and third temperature sensors. In this way, during the drying state, all temperature data related to the drying operation of the washing machine can be used as much as possible to control the washing machine, thereby improving the accuracy of controlling the washing machine during the drying state.

[0156] The following provides several possible examples to explain how the controller obtains the data collected by the first temperature sensor, the second temperature sensor, and / or the third temperature sensor. In one possible implementation provided in this application embodiment, see [link to implementation details]. Figure 5 The controller is configured to perform the following steps:

[0157] Step 3011: In the washing state, receive the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively, call the data collected by the third temperature sensor, and do not call the data collected by the first temperature sensor and the second temperature sensor.

[0158] In this embodiment, after power-on, the first, second, and third temperature sensors begin collecting temperature data at a certain frequency. Furthermore, each of these sensors continuously sends its collected data to the corresponding I / O port of the controller. Upon receiving collected data from any of the temperature sensors, the controller can store the data in its internal registers, cache, flash memory, or non-volatile memory. In other words, the process of the controller receiving the collected data is equivalent to the process of storing the collected data. This embodiment does not limit the scope of this embodiment.

[0159] In this embodiment, the operation of calling the data collected by the third temperature sensor specifically means that the controller can access the physical address corresponding to the third temperature sensor in the register through memory-mapped I / O and instruction operations (such as MOV, LDR) to obtain the data collected by the third temperature sensor. Conversely, the operation of not calling the data collected by the first and second temperature sensors means that the controller does not access the physical addresses corresponding to the first and second temperature sensors in the register. This application embodiment does not limit this aspect.

[0160] It's worth noting that this approach minimizes the impact of temperature sensor data unrelated to the washing cycle on the control results when adjusting the liquid temperature in the water chamber, thus improving the accuracy of control during the washing cycle. Furthermore, the controller receives data from all temperature sensors, ensuring data integrity. Simultaneously, the controller can receive but not process data from the first and second temperature sensors that are not needed for subsequent control, reducing its processing load.

[0161] Step 3021: In the drying state, receive and call the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively.

[0162] In this embodiment, the operation of accessing the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor can refer to the controller accessing the physical addresses corresponding to the first temperature sensor, the second temperature sensor, and the third temperature sensor in the register through memory-mapped I / O and instruction operations (such as MOV and LDR) to obtain the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor, respectively. This application embodiment does not limit this aspect.

[0163] It is worth noting that this allows the washing machine to be controlled using as much temperature data as possible related to the drying operation during the drying process, thereby improving the accuracy of controlling the washing machine during the drying process.

[0164] It is understood that, since the controller can generally only recognize and process corresponding digital signals, in this embodiment, the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor and output to the controller can be digital signals. That is, the first temperature sensor, the second temperature sensor, and the third temperature sensor are all digital temperature sensors that can directly output digital signals. Alternatively, it can be understood that the first temperature sensor, the second temperature sensor, and the third temperature sensor are all sensors with digital-to-analog conversion functions. In this way, the controller does not need to perform analog-to-digital conversion on the received data. This application does not limit this aspect.

[0165] In another possible implementation provided in the embodiments of this application, see [link to relevant documentation]. Figure 6 The controller is configured to perform the following steps:

[0166] Step 3012: In the washing state, receive the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively, perform analog-to-digital conversion on the received data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively, and call the data collected by the third temperature sensor after analog-to-digital conversion, but do not call the data collected by the second temperature sensor and the third temperature sensor respectively after analog-to-digital conversion.

[0167] In this embodiment, in addition to the processing unit for data processing and the register for storing data, the controller may include an ADC for analog-to-digital conversion.

[0168] In this embodiment, the data output to the controller from the first, second, and third temperature sensors can be analog signals; that is, the first, second, and third temperature sensors are temperature sensors capable of outputting analog signals. Therefore, when the controller receives analog signal data, the ADC can perform analog-to-digital conversion on the analog signal data to ensure that the controller can correctly process the data after calling the data from the third temperature sensor after analog-to-digital conversion. This improves the reliability of the controller executing subsequent steps based on the data from the third temperature sensor. Furthermore, for an explanation of why only the data from the third temperature sensor needs to be called under this temperature condition, please refer to the description of the relevant embodiments above; this application will not repeat this detail.

[0169] Step 3022: In the drying state, receive the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively, perform analog-to-digital conversion on the received data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively, and call up the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively after analog-to-digital conversion.

[0170] In the above example, obtaining and receiving the data collected by the first temperature sensor and the data collected by the second temperature sensor, and performing analog-to-digital conversion on the received data collected by the first temperature sensor and the second temperature sensor respectively, specifically means: when the first temperature sensor and the second temperature sensor send the analog signal data collected by the first temperature sensor to the I / O port of the controller, the analog signal data collected by the first temperature sensor can be converted into digital data first, and then the converted data collected by the first temperature sensor and the second temperature sensor can be stored in the register inside the controller.

[0171] It is worth noting that after receiving the corresponding acquired data, the controller performs analog-to-digital conversion on the analog signal data. This ensures that the controller can correctly identify and process the received acquired signal. Furthermore, for an explanation of the need to access the acquired data from all temperature sensors during the drying process, please refer to the description of the relevant embodiments above; this application will not repeat this detail.

[0172] Understandably, after performing analog-to-digital conversion on the data collected by the first, second, and third temperature sensors, the converted data can be stored in the controller's register, overwriting the analog signal data directly received by the controller from the first, second, and third temperature sensors. This reduces the occupancy of the register and improves its utilization rate.

[0173] In another possible implementation provided in this application embodiment, the controller is configured to perform the following steps:

[0174] In the washing state, the system receives and calls the data collected by the third temperature sensor, but does not receive the data collected by the first temperature sensor and the second temperature sensor.

[0175] During the drying process, the system receives and utilizes the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.

[0176] In this embodiment, receiving data from any temperature sensor can be understood as the controller storing the acquired data from the I / O port in flash memory, registers, cache, or non-volatile memory; not receiving data from temperature sensors can be understood as the controller not storing the acquired data from the I / O port in flash memory, registers, cache, or non-volatile memory; or, it can be understood as the controller storing the acquired data from the I / O port in flash memory, registers, cache, or non-volatile memory, then setting the acquired data to a preset value or adding an invalidation flag to the acquired data. The explanations for calling and not calling are similar to those in the previous embodiments and will not be repeated here.

[0177] In the above example, not receiving the data collected by the first temperature sensor and the second temperature sensor can be understood as shielding the data collected by the first temperature sensor and the second temperature sensor.

[0178] In this way, the controller can directly refuse to receive data that is not needed during the washing process, thereby reducing the amount of data processed by the controller and lowering its workload.

[0179] In another possible implementation provided in this application embodiment, the controller is configured to perform the following steps:

[0180] In the washing state, the system receives and calls up the data collected by the third temperature sensor, and receives and deletes the data collected by the first temperature sensor and the second temperature sensor.

[0181] During the drying process, the system receives and utilizes the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.

[0182] The explanation of receiving and calling data is the same as in the previous example and will not be repeated here. In this example, deleting the data collected by the first and second temperature sensors can be understood as follows: after the controller receives the data collected by the first and second temperature sensors, it will first store the data. However, this data is not used for washing control, so the controller can delete the data from the corresponding storage space. Since the data is not stored, the controller does not call the data collected by the first and second temperature sensors during washing. In other words, the controller only stores the data collected for washing or drying control, and directly deletes the data collected for other purposes.

[0183] This reduces the amount of data that can be stored in the storage space, thus improving the utilization rate of the storage space.

[0184] Of course, the controller can also process the data collected by different temperature sensors in different ways, which will not be limited here.

[0185] The following provides several possible examples to explain how the controller is used for process control of the drying state according to the first model. In one possible implementation provided in the embodiments of this application, see [link to relevant documentation]. Figure 7 The first model may include the following steps:

[0186] Step 3041: Determine the variation parameters of the data collected by the first temperature sensor within the target time period.

[0187] In this embodiment, the target duration can be set by relevant technical personnel according to actual needs. For example, the end time of the target duration can be the current time; or, the target duration can be a period of time in the middle or final stage of the drying process. Additionally, the change parameter includes the rate of change or the amount of change. This application embodiment does not limit this.

[0188] Generally, since the data collected by the first temperature sensor can indicate the inlet air temperature, if the parameter change of the first temperature sensor within the target time period is abnormal, it indicates that the air temperature delivered to the heating chamber through the washing machine's air intake duct is abnormal, which may interfere with the temperature of the gas inside the heating chamber and the outlet air temperature. Therefore, the data collected by the first temperature sensor can be used to determine whether subsequent steps can be performed based on the data collected by the second and third temperature sensors.

[0189] Step 3042: If the changing parameter is less than or equal to the first preset threshold, calculate the first difference between the outlet air temperature and the gas temperature in the heating chamber based on the data collected by the second temperature sensor and the third temperature sensor.

[0190] In this embodiment, the first preset threshold can be used to measure whether the changing parameter is abnormal. Generally, if the changing parameter is less than or equal to the first preset threshold, it indicates that the changing parameter is not abnormal, that is, the air sent into the heating chamber through the air inlet duct of the washing machine is less likely to interfere with the temperature of the gas in the heating chamber and the outlet air temperature.

[0191] Furthermore, the first preset threshold can be set according to actual needs or the actual operating conditions of the washing machine. Generally, in order to improve control accuracy, the first preset threshold can be set relatively small. This application embodiment does not limit this.

[0192] As can be understood from the description of the above embodiments, in this drying state, there is a certain correlation between the outlet air temperature and the temperature of the gas in the heating chamber. Moreover, the drying status of the clothes placed in the inner drum can be determined based on the outlet air temperature and the temperature of the gas in the heating chamber. That is, the first difference can be used to assist in determining whether the clothes placed in the inner drum are dry.

[0193] Furthermore, since the change parameter is obtained based on the target duration, it can also be calculated based on the data collected by the second temperature sensor and the third temperature sensor within the target duration. This application embodiment does not limit this.

[0194] Step 3043: If the first difference is less than the second preset threshold, reduce the operating power of the first heater or turn off the first heater.

[0195] In this embodiment, the second preset threshold can be used to measure whether the clothes in the inner drum are dry. Generally, if the first difference is less than or equal to the second preset threshold, it indicates that the clothes placed in the inner drum are dry or about to be dried. Moreover, the second preset threshold can be set according to actual needs or the actual operating conditions of the washing machine. This application embodiment does not limit this.

[0196] Furthermore, if the first difference is greater than or equal to the second preset threshold, it indicates that the clothes placed in the inner drum are not yet dried. In this case, the first heater can remain operational and maintain a high operating power. This application does not limit this aspect.

[0197] It is understandable that if the first difference is less than the second preset threshold, it indicates that the clothes placed in the inner drum have been dried or are about to be dried. In this case, the working power of the first heater can be appropriately reduced or the first heater can be turned off directly to avoid the problem of the first heater continuously emitting a large amount of heat, causing the air temperature inside the heating chamber (and the main body chamber) to continue to rise. In this way, the possibility of the clothes placed in the inner drum being damaged by high temperature can be minimized.

[0198] Specifically, if the first difference is less than the second preset threshold, it can be further determined whether the first difference is less than the third preset threshold (used to measure whether the clothes placed in the inner drum are already dried or about to be dried). If the first difference is less than or equal to the third preset threshold, it can be determined that the clothes are already dried, and the first heater can be turned off directly. If the first difference is greater than the third preset threshold, it can be determined that the clothes are not yet dried (about to be dried), and the working power of the first heater can be reduced directly.

[0199] In this way, the specific method of controlling the first heater can be selected according to different situations, which can improve the flexibility of control.

[0200] In another possible implementation provided in the embodiments of this application, see also... Figure 7 The first model may also include the following steps:

[0201] Step 3044: If the changing parameter is greater than the first preset threshold, reduce the operating power of the first heater or turn off the first heater.

[0202] In this embodiment, if the changing parameter is less than or equal to the first preset threshold, it indicates that the changing parameter may be abnormal. That is, the air sent into the heating chamber through the air inlet duct of the washing machine is likely to interfere with the temperature of the gas in the heating chamber and the outlet air temperature.

[0203] Understandably, in this situation, it indicates that the subsequent determination of whether the clothes are dry based on the data collected by the second and third temperature sensors may be inaccurate, or it may indicate that the temperature of the gas inside the heating chamber and the outlet air temperature may continue to rise, potentially damaging the clothes. Therefore, reducing the operating power of the first heater or turning it off can improve the safety of the drying process.

[0204] In another possible implementation provided in the embodiments of this application, see [link to relevant documentation]. Figure 8 Following step 3041 above, the first model may include the following steps:

[0205] Step 3045: If the changing parameter is less than or equal to the first preset threshold, calculate the outlet air temperature based on the data collected by the second temperature sensor, and calculate the temperature of the gas in the heating chamber based on the data collected by the third temperature sensor.

[0206] It is worth noting that since the data collected by the second temperature sensor is based on the measurement of the air outlet duct, and the data collected by the third temperature sensor is based on the measurement of the heating chamber, the air outlet temperature and the gas temperature in the heating chamber can be accurately determined, which facilitates the execution of subsequent steps.

[0207] It is understood that, as described in the above embodiments, the outlet air temperature and the gas temperature in the heating chamber will change differently in different stages of the drying state. Therefore, the clothes placed in the inner drum can be determined to be dry based on the specific magnitude of the outlet air temperature and the gas temperature in the heating chamber.

[0208] Step 3046: If the outlet air temperature is greater than or equal to the first temperature threshold and the gas temperature in the heating chamber is greater than or equal to the second temperature threshold, reduce the operating power of the first heater or turn off the first heater.

[0209] In this embodiment, the first temperature threshold can be used to indicate the temperature that the air in the air outlet duct should reach when the clothes are already dried or about to be dried. The second temperature threshold can be used to indicate the temperature that the gas in the heating chamber should reach when the clothes are already dried or about to be dried.

[0210] Generally, if the outlet air temperature is greater than or equal to the first temperature threshold and the gas temperature in the heating chamber is greater than or equal to the second temperature threshold, it indicates that the clothes placed in the inner drum have been dried or are about to be dried.

[0211] Specifically, if the outlet air temperature is greater than or equal to the first temperature threshold and the gas temperature in the heating chamber is greater than or equal to the second temperature threshold, it can be further determined whether the outlet air temperature is greater than or equal to less than the third temperature threshold, and whether the gas temperature in the heating chamber is less than or equal to the fourth temperature threshold (because, as described above, when the clothes are about to dry or have already dried, the air temperature in the heating chamber and the main body chamber may drop briefly, so it is necessary to determine whether it is less than or equal to the fourth temperature threshold). If the outlet air temperature is greater than or equal to less than the third temperature threshold and the gas temperature in the heating chamber is less than or equal to the fourth temperature threshold, it can be determined that the clothes have dried, and the first heater can be turned off directly; otherwise, if it is determined that the clothes are about to dry, the operating power of the first heater is reduced.

[0212] The third and fourth temperature thresholds are used to measure whether the clothes placed in the inner drum are already dried or about to be dried, and the temperature of the gas in the heating chamber is also used.

[0213] In this way, the specific method of controlling the first heater can be selected according to different situations, which can improve the flexibility of control.

[0214] In one possible implementation, after step 3045 above, see [link to relevant documentation]. Figure 9 The first model may include the following steps:

[0215] Step 3047: If the slope of the outlet air temperature at the target time is greater than or equal to the first slope, and the slope of the gas temperature in the heating chamber at the target time is less than or equal to the second slope, reduce the operating power of the first heater or turn off the first heater.

[0216] Optionally, the target time can be set by relevant technical personnel according to actual needs. For example, the target time can be the current time; or, the target time can be any time in the middle or final stage of the drying process. This application embodiment does not limit this.

[0217] In this embodiment, the first slope can be used to indicate the slope at which the outlet air temperature should meet when the clothes are already dried or about to be dried. The second slope can be used to indicate the slope at which the temperature of the gas in the heating chamber should meet when the clothes are already dried or about to be dried. The specific values ​​of the first slope and the second slope can be set according to actual needs, and this embodiment does not limit them.

[0218] For example, as described in the above embodiments, when the clothes are about to dry or have already dried, the air temperature in the heating chamber and the main body chamber may drop briefly, while the air temperature in the air outlet duct will continue to rise. Therefore, when the clothes are already dried or about to dry, the first slope should be a positive value greater than 0, and the second slope should be a negative value less than 0. Therefore, if the slope of the air outlet temperature at the target time is greater than or equal to the first slope, and the slope of the gas temperature in the heating chamber at the target time is less than or equal to the second slope, it can be indicated that the clothes placed in the inner drum are already dried or about to dry.

[0219] As can be seen from the above embodiments, in this application, it is possible to determine whether the clothes placed in the inner drum are dry in a variety of different ways, and different methods can be flexibly selected to control the first heater according to different situations. In this way, the flexibility of the controller in drying control can be improved.

[0220] In one possible implementation, the controller is also configured as follows:

[0221] In this washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the first over-temperature protection threshold, a washing fault reminder signal is output.

[0222] In this embodiment, the first over-temperature protection threshold can be set according to actual needs. For example, the first over-temperature protection threshold can be determined by the type of clothing currently selected by the user. If the current clothing type is polyester, then the first over-temperature protection threshold can be set to a larger value; if the current clothing type is silk, then the first over-temperature protection threshold can be set to a smaller value. This application embodiment does not limit this.

[0223] The washing fault reminder signal can be used to alert that the temperature of the liquid in the heating chamber is greater than or equal to a first over-temperature protection threshold, which may cause damage to clothing and / or damage to components such as the second heater in the washing machine. Specifically, the washing fault reminder signal can be any possible form of signal, such as text, sound, or light, and this application embodiment does not limit it.

[0224] In this drying state, when the outlet air temperature calculated based on the data collected by the second temperature sensor is greater than or equal to the second over-temperature protection threshold, and / or when the temperature of the gas in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the third over-temperature protection threshold, a drying fault reminder signal is output.

[0225] In this embodiment, the second and third over-temperature protection thresholds can be set according to actual needs. For example, the second and third over-temperature protection thresholds can also be determined by the type of clothing currently selected by the user. If the current clothing type is nylon, then the second and third over-temperature protection thresholds can be set to a larger value; if the current clothing type is wool, then the second and third over-temperature protection thresholds can be set to a smaller value. This application embodiment does not limit this.

[0226] Moreover, during the drying process, the temperature of the gas in the heating chamber is generally greater than or equal to the outlet air temperature. Therefore, the second over-temperature protection threshold can be less than the third over-temperature protection threshold, and this application embodiment does not limit this.

[0227] The drying fault warning signal can be used to alert that the outlet air temperature is greater than or equal to the second over-temperature protection threshold, and / or the gas temperature in the heating chamber is greater than or equal to the third over-temperature protection threshold, which may cause damage to clothes and / or damage to components such as the first heater in the washing machine. Specifically, the drying fault warning signal can be any possible form of signal such as text, sound, or light, and this application embodiment does not limit it.

[0228] It is understood that the controller can output the drying fault reminder signal or the washing fault reminder signal through the corresponding components on the washing machine, or it can output the drying fault reminder signal or the washing fault reminder signal to other electronic devices or servers that are connected to the washing machine (and / or the controller) via Wi-Fi, Bluetooth, or other means. This application does not limit this aspect.

[0229] This allows the washing machine to provide effective alerts and assistance to users when overheating occurs during washing or drying, thereby improving its usability.

[0230] In one possible implementation, the controller is configured as follows:

[0231] In this washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the first preset temperature, the target parameters of the second heater are adjusted to reduce the temperature of the liquid in the water-filled chamber.

[0232] In this embodiment, the first preset temperature can be set according to the washing temperature set by the user, or it can be set according to the temperature range of the type of clothing selected by the user. For example, if the user selects to use a high-temperature washing temperature of 60°C, then the first preset temperature can be 60°C; if the user selects wool as the type of clothing to be washed, then the first preset temperature can be 35°C. This application embodiment does not limit this.

[0233] It is worth noting that if the temperature of the liquid in the heating chamber is greater than or equal to the first preset temperature, it indicates that the current operating power of the second heater is high. Therefore, the operating power of the second heater can be reduced or the second heater can be turned off to lower the temperature of the liquid in the water-filled chamber. Additionally, the real-time temperature of the liquid in the heating chamber can be continuously calculated during the process of lowering the temperature of the liquid in the water-filled chamber, and if the temperature of the liquid in the heating chamber is lower than the first preset temperature, the second heater can be turned on again, or its operating power can be maintained or increased.

[0234] In this washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is less than or equal to the second preset temperature, the target parameters of the second heater are adjusted to increase the temperature of the liquid in the water-filled chamber.

[0235] In this embodiment, the second preset temperature can be set according to the washing temperature set by the user. For example, if the user selects to use a high-temperature washing temperature of 80°C, then the second preset temperature can be 80°C. This application embodiment does not limit this.

[0236] It is worth noting that if the temperature of the liquid in the heating chamber is less than or equal to the second preset temperature, it indicates that the current operating power of the second heater is low. Therefore, the operating power of the second heater can be increased to raise the temperature of the liquid in the water-filled chamber. Furthermore, the real-time temperature of the liquid in the heating chamber can be continuously calculated during the process of raising the temperature of the liquid in the water-filled chamber, and if the temperature of the liquid in the heating chamber exceeds the second preset temperature, the second heater can be turned off or its operating power reduced.

[0237] In this way, temperature control can be achieved based on the data collected by the third temperature sensor during the washing process, thereby improving the safety of the washing machine when it is in the washing state.

[0238] It should be noted that in the various embodiments provided in this application, "greater than or equal to" means "greater than" or "equal to". For example, "the outlet air temperature is greater than or equal to the first temperature threshold" means "the outlet air temperature is greater than the first temperature threshold, or the outlet air temperature is equal to the first temperature threshold". "Less than or equal to" means "less than" or "equal to". For example, "the changing parameter is less than or equal to the first preset threshold" means "the changing parameter is less than the first preset threshold, or the changing parameter is equal to the first preset threshold".

[0239] Furthermore, any one or more steps in each of the above embodiments provided in this application can be separated into an independent embodiment; additionally, any two or more embodiments can be combined into a new embodiment. Specific adjustments can be made according to actual needs, and this application does not limit this.

[0240] The following describes the control method, device, and computer-readable storage medium used in the washing machine provided in this application. The specific implementation process and technical effects are described above and will not be repeated here.

[0241] This application also provides a control method for a washing machine, which can be applied to any of the washing machines provided in the above embodiments, and can be executed by a controller in the washing machine. The control method includes:

[0242] During the washing process, data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor are obtained respectively.

[0243] During the drying process, the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor are obtained respectively, and the data are used for process control of the drying process according to the first model.

[0244] It is worth noting that the method provided in this application embodiment belongs to the same inventive concept as the washing machine 200 described above. Therefore, the method may also include any other possible steps to achieve any technical effect and function that the washing machine 200 and / or the controller in the washing machine 200 can achieve. The embodiments of this application will not be elaborated upon here.

[0245] It should be understood that although the steps in the above flowcharts are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the above flowcharts may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0246] Based on the foregoing embodiments, this application provides a control device for a washing machine. This device includes various modules and units within each module, which can be implemented using a processor; alternatively, it can be implemented using specific logic circuits. During implementation, the processor can be a central processing unit (CPU), microprocessor (MPU), digital signal processor (DSP), or field-programmable gate array (FPGA), etc. This device can be used with any of the washing machines provided in the above embodiments.

[0247] Specifically, the control device of the washing machine may include:

[0248] The washing adjustment module is used to obtain the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively during the washing state.

[0249] The drying adjustment module is used to obtain the data collected by the first temperature sensor, the second temperature sensor and the third temperature sensor respectively under the drying state, and to use the data for process control of the drying state according to the first model.

[0250] The descriptions of the above device embodiments are similar to those of the above method embodiments, and have similar beneficial effects. For technical details not disclosed in the device embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0251] It should be noted that the module division of the washing machine control device provided in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, exist as separate physical units, or have two or more units integrated into one unit. The integrated units can be implemented in hardware, as software functional units, or a combination of software and hardware.

[0252] It should be noted that, in the embodiments of this application, if the above-described methods are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, or the parts that contribute to related technologies, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an electronic device to execute all or part of the methods described in 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), magnetic disks, or optical disks. Thus, the embodiments of this application are not limited to any specific hardware and software combination.

[0253] It is understood that the washing machine provided in this application embodiment may also include any possible processor (such as the controller described above) and memory. The processor of the washing machine provides computing and control capabilities. The memory of the washing machine includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database of the washing machine is used to store data. The network interface of the washing machine is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements the above-described method.

[0254] This application provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the method provided in the above embodiments.

[0255] This application provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the steps in the method provided in the above-described method embodiments.

[0256] Those skilled in the art will understand that the structures shown in any of the accompanying drawings provided in the above embodiments are merely block diagrams of some structures related to the present application solution, and do not constitute a limitation on the washing machine to which the present application solution is applied. A specific washing machine may include more or fewer components than those shown in the figures, or combine certain components, or have different component arrangements.

[0257] In one embodiment, the control device for the washing machine provided in this application can be implemented as a computer program, which can run on the washing machine described above. The washing machine's memory can store various program modules that make up the device. The computer program, composed of the various program modules, causes the processor to execute the steps of the methods in the various embodiments of this application described in this specification.

[0258] It should be noted that the descriptions of the storage medium and washing machine embodiments above are similar to the descriptions of the method embodiments above, and have similar beneficial effects. For technical details not disclosed in the storage medium, storage medium, and device embodiments of this application, please refer to the descriptions of the method embodiments of this application for understanding.

[0259] It should be understood that the phrases "one embodiment," "an embodiment," or "some embodiments" mentioned throughout the specification mean that a specific feature, structure, or characteristic related to an embodiment is included in at least one embodiment of this application. Therefore, "in one embodiment," "in one embodiment," or "in some embodiments" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. It should be understood that in the various embodiments of this application, the sequence numbers of the above-described processes do not imply a sequential order of execution; the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. The sequence numbers of the above-described embodiments are merely for descriptive purposes and do not represent the superiority or inferiority of the embodiments. The descriptions of the various embodiments above tend to emphasize the differences between the various embodiments; their similarities or commonalities can be referred to mutually, and for the sake of brevity, they will not be repeated here.

[0260] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three kinds of relationships. For example, object A and / or object B can represent three situations: object A exists alone, object A and object B exist simultaneously, and object B exists alone.

[0261] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0262] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The embodiments described above are merely illustrative. For example, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple modules or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or modules can be electrical, mechanical, or other forms.

[0263] The modules described above as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules. They may be located in one place or distributed across multiple network units. Some or all of the modules may be selected to achieve the purpose of this embodiment according to actual needs.

[0264] In addition, each functional module in the various embodiments of this application can be integrated into one processing unit, or each module can be a separate unit, or two or more modules can be integrated into one unit; the integrated modules can be implemented in hardware or in the form of hardware plus software functional units.

[0265] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media that can store program code, such as mobile storage devices, read-only memory (ROM), magnetic disks, or optical disks.

[0266] Alternatively, if the integrated units described above are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this application, or the parts that contribute to related technologies, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause an electronic device to execute all or part of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROMs, magnetic disks, or optical disks.

[0267] The methods disclosed in the method embodiments provided in this application can be arbitrarily combined to obtain new method embodiments without conflict.

[0268] The features disclosed in the several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0269] The features disclosed in the several methods or product embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0270] The above description is merely an embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A washing machine, the washing machine comprising: Box; Drum body, used for washing or drying clothes; The cylindrical body includes: An outer cylinder has a water-holding cavity formed inside it. The water-holding cavity includes a main cavity and a heating cavity. The heating cavity is located at the bottom of the main cavity and is in communication with the main cavity. The inner cylinder is disposed within the main cavity; A drying air duct structure, wherein a drying air duct is formed within the drying air duct structure, and the drying air duct is connected to the water-containing cavity; the drying air duct structure includes: An air inlet duct structure is provided to connect the water-containing chamber with the drying duct, so that the gas in the water-containing chamber flows into the drying duct. An air outlet duct structure is provided to connect the drying duct and the heating chamber, so that the gas from the drying duct flows into the water-holding chamber. A fan is installed inside the drying duct so that the gas in the water chamber enters the drying duct through the air inlet duct structure, and the gas in the drying duct enters the water chamber through the air outlet duct structure. A first heater is disposed in the drying air duct and is used to heat the gas in the drying air duct; A second heater is disposed in the heating chamber and is used to heat the liquid or gas in the heating chamber; The washing machine is characterized in that it further includes: A first temperature sensor is installed in the air inlet duct structure to detect the air inlet temperature; A second temperature sensor is installed in the air outlet duct structure to detect the air outlet temperature; A third temperature sensor is installed inside the heating chamber to detect the temperature of the gas or liquid in the heating chamber. The controller is used to control the washing machine to be in the washing and drying states; The controller is further configured as follows: During the washing state, the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor are obtained respectively. The data collected by the third temperature sensor is used for process control of the washing state, while the data collected by the first temperature sensor and the second temperature sensor are not used for process control of the washing state. During the drying state, the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor are obtained respectively, and the data are used for process control of the drying state according to the first model.

2. The washing machine as described in claim 1, characterized in that, The controller is configured to: In the washing state, the target parameters of the second heater are adjusted according to the data collected by the third temperature sensor, so as to regulate the temperature of the liquid or gas in the water chamber. During the drying process, the target parameters of the first heater are adjusted based on the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor, so as to regulate the temperature of the air inside the cylinder. The target parameters include operating power or switching status.

3. The washing machine as described in claim 1, characterized in that, The controller is configured to: In the washing state, the system receives and calls the data collected by the third temperature sensor, but does not receive the data collected by the first temperature sensor and the second temperature sensor. During the drying process, the system receives and utilizes the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.

4. The washing machine as described in claim 1, characterized in that, The controller is configured to: In the washing state, the system receives data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor, calls up the data collected by the third temperature sensor, and does not call up the data collected by the first temperature sensor and the second temperature sensor. During the drying process, the system receives and utilizes the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.

5. The washing machine as described in claim 1, characterized in that, The controller is configured to: In the washing state, the system receives and calls up the data collected by the third temperature sensor, and receives and deletes the data collected by the first temperature sensor and the second temperature sensor. During the drying process, the system receives and utilizes the data collected by the first temperature sensor, the second temperature sensor, and the third temperature sensor.

6. The washing machine according to any one of claims 1-5, characterized in that, The first model includes: Determine the variation parameters of the data collected by the first temperature sensor within the target time period, wherein the variation parameters include the rate of change or the amount of change; When the changing parameter is less than or equal to a first preset threshold, a first difference between the outlet air temperature and the gas temperature in the heating chamber is calculated based on the data collected by the second temperature sensor and the third temperature sensor. If the first difference is less than the second preset threshold, reduce the operating power of the first heater or turn off the first heater.

7. The washing machine as described in claim 6, characterized in that, The first model also includes: If the changing parameter is greater than the first preset threshold, reduce the operating power of the first heater or turn off the first heater.

8. The washing machine according to any one of claims 1-5, characterized in that, The first model includes: Determine the variation parameters of the data collected by the first temperature sensor within the target time period; When the changing parameter is less than or equal to the first preset threshold, the outlet air temperature is calculated based on the data collected by the second temperature sensor, and the temperature of the gas in the heating chamber is calculated based on the data collected by the third temperature sensor. If the outlet air temperature is greater than or equal to a first temperature threshold and the gas temperature in the heating chamber is greater than or equal to a second temperature threshold, reduce the operating power of the first heater or turn off the first heater.

9. The washing machine according to any one of claims 1-5, characterized in that, The first model includes: Determine the variation parameters of the data collected by the first temperature sensor within the target time period; When the changing parameter is less than or equal to the first preset threshold, the outlet air temperature is calculated based on the data collected by the second temperature sensor, and the temperature of the gas in the heating chamber is calculated based on the data collected by the third temperature sensor. If the slope of the outlet air temperature at the target time is greater than or equal to the first slope, and the slope of the gas temperature in the heating chamber at the target time is less than or equal to the second slope, reduce the operating power of the first heater or turn off the first heater.

10. The washing machine according to any one of claims 1-5, characterized in that, The controller is also configured to: In the washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the first over-temperature protection threshold, a washing fault reminder signal is output. During the drying process, when the outlet air temperature calculated based on the data collected by the second temperature sensor is greater than or equal to the second over-temperature protection threshold, and / or the gas temperature in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the third over-temperature protection threshold, a drying fault reminder signal is output.

11. The washing machine according to any one of claims 1-5, characterized in that, The controller is configured to: In the washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is greater than or equal to the first preset temperature, the target parameters of the second heater are adjusted to reduce the temperature of the liquid in the water-filled chamber. In the washing state, when the temperature of the liquid in the heating chamber calculated based on the data collected by the third temperature sensor is less than or equal to the second preset temperature, the target parameters of the second heater are adjusted to increase the temperature of the liquid in the water-filled chamber.

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