Clothes dryer, control method and control device therefor, and storage medium

Abstract

The application provides a clothes drying machine and a control method, a control device and a storage medium thereof. The control method comprises: obtaining a drying instruction of the clothes drying machine; drying clothes in an inner drum according to the drying instruction, and adopting different control strategies in different operation stages during the drying process of the clothes, wherein the different control strategies correspond to different numbers of fan operation. By controlling different numbers of fan operation in different operation stages during the drying process, and configuring the corresponding air volume for the operation stages with different moisture contents of the clothes, i.e., two fans operate in cooperation, the overall heat exchange efficiency of the clothes drying machine can be improved, and the drying efficiency of the clothes drying machine is further improved. Moreover, the first fan is driven by a motor that drives the rotation of the inner drum, so that the energy utilization rate of the clothes drying machine can be improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of clothes drying machines, and particularly relates to a clothes drying machine and a control method, a control device and a storage medium thereof. BACKGROUND

[0002] The appearance of clothes drying machines facilitates the life of users. The clothes treated by the clothes drying machines do not need to be dried by the users, and the waiting time for drying clothes is saved. The clothes drying machine includes a heat pump clothes drying machine. The heat pump clothes drying machine adopts a dehumidification mode similar to that of an air conditioner to dry clothes, and the fabric is more protected. Even clothes that are not resistant to high temperatures can be dried.

[0003] The drying fan of the existing heat pump clothes drying machine is mainly a single type of fan, which leads to low drying efficiency of the clothes drying machine. SUMMARY

[0004] The embodiments of the application provide a clothes drying machine and a control method, a control device and a storage medium thereof. The control method of the clothes drying machine is optimized to improve the drying efficiency of the clothes drying machine.

[0005] The embodiments of the application provide a control method of a clothes drying machine. The clothes drying machine includes an inner drum, a motor, a first fan, a second fan and a drying air duct pipe. The motor is used to drive the inner drum to rotate and the first fan to operate. The first fan and the second fan can both send air into the drying air duct pipe. The control method comprises the following steps.

[0006] An instruction for drying clothes is obtained.

[0007] The clothes in the inner drum are dried according to the drying instruction, and different control strategies are adopted in different operation stages during the drying process of the clothes. Different control strategies correspond to different numbers of fan operations.

[0008] Optionally, the operation stage includes a high-speed drying stage, a constant-temperature drying stage and a low-temperature drying stage. The clothes in the inner drum are dried according to the drying instruction, and different control strategies are adopted in different operation stages during the drying process of the clothes. Different control strategies correspond to different numbers of fan operations, which include the following steps.

[0009] In the high-speed drying stage, the first fan and the second fan are both controlled to operate.

[0010] In the constant-temperature drying stage or the low-temperature drying stage, one of the first fan and the second fan is controlled to operate.

[0011] Optionally, the high-speed drying stage includes a first sub-stage and a second sub-stage. In the high-speed drying stage, the first fan and the second fan are both controlled to operate, which includes the following steps.

[0012] In the first sub-stage, the motor is controlled to rotate forward, so that the first fan sends air into the drying air duct at a first rotating speed, and the second fan is controlled to send air into the drying air duct at a second rotating speed synchronously;

[0013] In the second sub-stage, the motor is controlled to rotate reversely, so that the first fan stops sending air into the drying air duct, and the second fan is adjusted to send air into the drying air duct at a third rotating speed synchronously, the third rotating speed is greater than the first rotating speed, and the third rotating speed is greater than the second rotating speed.

[0014] Optionally, the constant-temperature drying stage includes a third sub-stage and a fourth sub-stage, and the control of the first fan and the second fan in the constant-temperature drying stage or the low-temperature drying stage includes:

[0015] In the third sub-stage, the motor is controlled to rotate forward, so that the first fan sends air into the drying air duct at a first rotating speed;

[0016] In the fourth sub-stage, the motor is controlled to rotate reversely, so that the first fan stops sending air into the drying air duct, and the second fan is controlled to send air into the drying air duct at a second rotating speed or a third rotating speed synchronously, the third rotating speed is greater than the first rotating speed, and the third rotating speed is greater than the second rotating speed.

[0017] Optionally, the low-temperature drying stage includes a fifth sub-stage, a sixth sub-stage and a seventh sub-stage, and the control of the first fan and the second fan in the constant-temperature drying stage or the low-temperature drying stage further includes:

[0018] In the fifth sub-stage, the motor is controlled to rotate forward, so that the first fan sends air into the drying air duct;

[0019] In the sixth sub-stage, the motor is controlled to rotate reversely for a set time length, so that the first fan stops sending air into the drying air duct;

[0020] In the seventh sub-stage, the motor is adjusted to rotate forward, so that the first fan sends air into the drying air duct again.

[0021] Optionally, the control method further includes:

[0022] The operation stage of the clothes dryer is determined according to the water content of the clothes in the inner drum.

[0023] The application also provides a control device of a clothes dryer, which includes:

[0024] An acquisition unit is configured to acquire a drying instruction of the clothes dryer.

[0025] A control unit is configured to dry clothes in the inner drum according to the drying instruction, and adopt different control strategies in different running stages during the drying process, and the different control strategies correspond to different numbers of fan operation.

[0026] The embodiments of the present application further provide a computer readable storage medium, which stores a computer program, and the computer program causes a computer to execute the control method of the clothes dryer when the computer program is executed on the computer.

[0027] The embodiments of the present application further provide a clothes dryer, which comprises:

[0028] An inner drum is configured to carry clothes.

[0029] A drying air duct pipe is configured to exchange heat with the inner drum.

[0030] A first fan is capable of sending air into the drying air duct pipe.

[0031] A motor is connected with the inner drum and the first fan, and is configured to drive the inner drum to rotate and the first fan to operate.

[0032] A second fan is capable of sending air into the drying air duct pipe.

[0033] A processor is electrically connected with the motor and the second fan respectively, and is configured to acquire a drying instruction of the clothes dryer, and dry clothes in the inner drum according to the drying instruction, and adopt different control strategies in different running stages during the drying process, and the different control strategies correspond to different numbers of fan operation.

[0034] Optionally, the inner drum is coaxially arranged with the motor, and the first fan is arranged on a side of the motor away from the inner drum; and / or

[0035] The second fan is arranged in the drying air duct pipe.

[0036] In the clothes dryer, the control method, the control device and the storage medium provided by the embodiments of the present application, different numbers of fans are controlled to operate in different running stages during the drying process, and the different running stages correspond to different water contents of clothes, and the different water contents of clothes correspond to different air volumes, that is, the two fans operate in cooperation, so that the heat exchange efficiency of the clothes dryer as a whole is improved, and the drying efficiency of the clothes dryer is improved. In addition, the first fan is driven by the motor driving the inner drum to rotate, so that the energy utilization rate of the clothes dryer is improved. BRIEF DESCRIPTION OF DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0038] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings. In the following description, the same reference numbers represent the same parts.

[0039] Figure 1 The first flowchart of the control method of the clothes dryer provided by the embodiments of the present application.

[0040] Figure 2 The second flowchart of the control method of the clothes dryer provided by the embodiments of the present application.

[0041] Figure 3 The structural diagram of the control device of the clothes dryer provided by the embodiments of the present application.

[0042] Figure 4 The first structural diagram of the clothes dryer provided by the embodiments of the present application.

[0043] Figure 5 The second structural diagram of the clothes dryer provided by the embodiments of the present application.

[0044] Figure 6 The structural block diagram of the clothes dryer provided by the embodiments of the present application. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort fall within the scope of protection of the present application.

[0046] The clothes dryer can be a device only with drying function, and the clothes dryer can also be a washer-dryer or a washer-dryer with washing function and drying function. According to different drying principles, the clothes dryer can also be divided into electric heating type clothes dryer and heat pump type clothes dryer, etc. The heat pump type clothes dryer adopts a dehumidification mode similar to air conditioning for drying, which is more protective to fabrics, and even clothes that are not resistant to high temperature can be dried. Therefore, the heat pump type clothes dryer is becoming more and more popular. The embodiments of the present application take the heat pump type clothes dryer as an example for description, which should not be understood as a limitation on the type of clothes dryer.

[0047] The existing drying fan of the heat pump type clothes dryer is mainly a single type of fan, which is mainly divided into two categories: one is a fan driven by a motor. The fan of this type is mainly driven by a motor to send air, and the motor driving the inner cylinder is reused to improve the energy utilization rate of the motor. However, the motor cannot send air to the drying system during the reverse phase, that is, the whole machine has no heat exchange during the reverse phase, the system efficiency is reduced, and too short reverse time will cause more wrinkles on the dried clothes. The other is an independent fan control, which is independent of the motor driving the inner cylinder to rotate, and the system energy utilization rate is relatively low.

[0048] To solve the problem of single type of drying fan of the existing clothes dryer, which leads to low drying efficiency of the clothes dryer, the embodiments of the present application provide a clothes dryer, a control method, a control device and a storage medium thereof, which will be described below in conjunction with the drawings.

[0049] Please refer to Figure 1 , Figure 1 The first flowchart of the control method of the clothes dryer provided by the embodiments of the present application is shown. The clothes dryer includes an inner cylinder, a motor, a first fan, a second fan and a drying air duct pipe. The inner cylinder is used to carry clothes, and the motor is used to drive the inner cylinder to rotate. At the same time, the motor can also drive the first fan to run. The drying air duct pipe is used for heat exchange with the inner cylinder, such as sending hot air into the inner cylinder through the drying air duct pipe. The first fan and the second fan can both send air into the drying air duct pipe to accelerate the process of heat exchange. Of course, the clothes dryer also includes other components such as a cabinet, a display panel, control buttons, etc., which are not limited here. The control method of the clothes dryer of the embodiments of the present application includes:

[0050] 101, obtaining a drying instruction of the clothes dryer.

[0051] The work of the fan is carried out in the drying process of the clothes dryer to accelerate the heat exchange efficiency and thus improve the drying efficiency of the clothes. Therefore, when adjusting the fan, the drying instruction of the clothes dryer needs to be obtained first.

[0052] There are at least two ways to obtain the drying instruction of the clothes dryer. In the first way, the drying instruction can come from the user's program selection. For the clothes dryer, it has not only drying programs for different materials, such as a wool drying program for wool materials, a down drying program for down materials, a cotton drying program for cotton and hemp materials, and so on. The clothes dryer also has other programs, such as a care program, etc. The clothes dryer can include a plurality of touch keys or virtual keys to facilitate the user to select different programs by pressing the keys. The drying instruction can be obtained by obtaining the user's operation instruction. In the second way, the drying instruction can be automatically obtained according to the state detection of the clothes and enter the drying program. For example, the drying instruction can also be obtained by detecting the state of the clothes in the inner drum. For example, when the user puts the clothes into the inner drum of the clothes dryer, the humidity of the clothes can be detected first, then the material of the clothes is obtained, and the corresponding drying program is selected according to the humidity and the material, and then the clothes dryer executes the corresponding drying program.

[0053] Similarly, the above two ways can also be used to obtain the drying instruction for the washer-dryer.

[0054] 102. Dry the clothes in the inner drum according to the drying instruction, and use different control strategies in different running stages during the drying process of the clothes, and different control strategies correspond to different numbers of fan operation.

[0055] After obtaining the drying instruction, the drying process of the clothes can be executed. For example, for the heat pump clothes dryer, the drying process of the clothes can be: the hot air generated by the heat pump system is sent into the inner drum through the drying air duct pipe, and after heat exchange with the wet and cold air in the inner drum, it enters the heat pump system for circulation, thereby continuously discharging the moisture in the clothes to achieve the drying of the clothes. In this process, the inner drum alternately rotates forward and reversely to turn over the clothes to evenly dry the clothes. Among them, the forward rotation and the reverse rotation are relative, for example, the clockwise rotation of the inner drum is defined as the forward rotation, and the counterclockwise rotation of the inner drum is correspondingly the reverse rotation. The forward rotation and the reverse rotation alternately can spread the clothes, evenly dry the clothes and reduce the generation of wrinkles.

[0056] Among them, different control strategies can be used in different running stages during the drying process, and different control strategies correspond to different numbers of fan operation, that is, different air supply modes are used in different running stages to cooperate with the running stage to improve the drying efficiency of the clothes and improve the energy utilization rate of the system. For example, in different running stages during the drying process, at least one of the first fan and the second fan is controlled to operate, that is, at least one fan supplies air into the drying air duct pipe in different running stages.

[0057] The control method of the clothes dryer provided in the embodiments of the present application controls different numbers of the fans to operate in different operation stages in the drying process. Different operation stages correspond to different moisture contents of the clothes, and the operation stages corresponding to different moisture contents are configured to be matched with different air volumes. That is, the two fans operate in cooperation, which can improve the overall heat exchange efficiency of the clothes dryer, and further improve the drying efficiency of the clothes dryer. In addition, the first fan is driven by the motor that drives the inner drum to rotate, which can improve the energy utilization rate of the clothes dryer.

[0058] For example, please refer to Figure 1 and refer to Figure 2 as shown in Figure 2 The second flowchart of the control method of the clothes dryer provided in the embodiments of the present application is shown. The embodiments of the present application also provide a control method of a clothes dryer, which comprises the following steps:

[0059] 201, obtaining a drying instruction of the clothes dryer.

[0060] The operation of the fan is performed in the drying process of the clothes dryer to accelerate the heat exchange efficiency, thereby improving the drying efficiency of the clothes. Therefore, when the fan is adjusted, the drying instruction of the clothes dryer needs to be obtained first.

[0061] There are at least two ways to obtain the drying instruction of the clothes dryer. The first way is that the drying instruction can come from the program selection of the user. For the clothes dryer, it has not only drying programs for different materials, such as a wool drying program for wool materials, a down drying program for down materials, a cotton drying program for cotton and hemp materials, and the like. The clothes dryer also has other programs, such as a care program, etc. The clothes dryer can include a plurality of touch keys or virtual keys to facilitate the user to select different programs by pressing the keys. The drying instruction can be obtained by obtaining the operation instruction of the user. The second way is that the drying instruction can be automatically obtained according to the state detection of the clothes, and the drying program is entered. For example, the drying instruction can also be automatically selected by detecting the state of the clothes in the inner drum to select the corresponding drying program. For example, when the user puts the clothes into the inner drum of the clothes dryer, the humidity of the clothes can be detected first, and then the material of the clothes is obtained, and the corresponding drying program is selected according to the humidity and the material, and then the clothes dryer executes the corresponding drying program.

[0062] Similarly, the above two ways can also be used to obtain the drying instruction for the washer-dryer.

[0063] 202, drying the clothes in the inner drum according to the drying instruction, and using different control strategies in different operation stages in the process of drying the clothes, and different control strategies correspond to different numbers of fan operation.

[0064] After the drying instruction is acquired, the drying process of the clothes can be performed. For example, for the heat pump clothes dryer, the drying process of the clothes can be that the hot air generated by the heat pump system is sent into the inner drum through the drying air duct pipe, exchanges heat with the wet and cold air of the clothes in the inner drum, and then enters the heat pump system for circulation, thereby continuously discharging the moisture in the clothes to achieve the drying of the clothes. In this process, the inner drum alternately rotates in forward and reverse directions to turn over the clothes and uniformly dry the clothes. The forward and reverse directions are relative, for example, the clockwise rotation of the inner drum is defined as the forward direction, and the counterclockwise rotation of the inner drum is correspondingly the reverse direction. The alternating forward and reverse rotation can spread the clothes, uniformly dry the clothes, and reduce the generation of wrinkles.

[0065] Different control strategies can be adopted in different running stages in the drying process, and different control strategies correspond to different numbers of fan operation, that is, different air supply modes are adopted in different running stages to cooperate with the running stages, thereby improving the drying efficiency of the clothes and improving the energy utilization rate of the system. For example, at least one of the first fan and the second fan is controlled to operate in different running stages in the drying process, that is, at least one fan supplies air into the drying air duct pipe in different running stages.

[0066] In the process of drying the clothes, the running stages can include a high-speed drying stage, a constant-temperature drying stage, and a low-temperature drying stage, and the temperatures in the inner drum corresponding to different running stages are different. For example, the high-speed drying stage can correspond to the stage of starting to heat the inner drum, the constant-temperature drying stage corresponds to the stage of constant-temperature drying after the heating is completed, the temperature in the constant-temperature drying stage can be lower than the temperature in the high-speed drying stage after the heating is completed, and the low-temperature drying stage is a stage in which the inner drum is not heated and the temperature in the inner drum slowly decreases. For example, the running stages can sequentially include the high-speed drying stage, the constant-temperature drying stage, and the low-temperature drying stage in chronological order.

[0067] For example, the determination of the running stages is based on the moisture content of the clothes in the inner drum. For example, in the drying process, the humidity sensor and the weight sensor can be used to detect the humidity and weight of the clothes in the inner drum in real time to determine the moisture content of the clothes, and a moisture content threshold is set for each running stage. When the moisture content is lower than the moisture content threshold, the next stage can be entered. For example, a first moisture content threshold is set for the high-speed drying stage, a second moisture content threshold is set for the constant-temperature drying stage, and a third moisture content threshold is set for the low-temperature drying stage. The first moisture content threshold is greater than the second moisture content threshold, and the second moisture content threshold is greater than the third moisture content threshold. When the real-time moisture content of the clothes is lower than the first moisture content threshold, the constant-temperature drying stage can be entered from the high-speed drying stage. When the real-time moisture content of the clothes is lower than the second moisture content threshold, the low-temperature drying stage can be entered. When the real-time moisture content of the clothes is lower than the third moisture content threshold, it means that the drying is completed.

[0068] In the high-speed drying stage, the constant-temperature drying stage and the low-temperature drying stage, the number of the fans controlled to operate is different. For example, in the high-speed drying stage, the first fan and the second fan are controlled to operate; in the constant-temperature drying stage or the low-temperature drying stage, one of the first fan and the second fan is controlled to operate. The following will be described in three stages respectively.

[0069] 203, entering the first sub-stage, the motor is controlled to rotate forward, so that the first fan blows air into the drying air duct at a first rotating speed, and the second fan blows air into the drying air duct at a second rotating speed synchronously.

[0070] 204, entering the second sub-stage, the motor is controlled to rotate reversely, so that the first fan stops blowing air into the drying air duct; the second fan is adjusted to blow air into the drying air duct at a third rotating speed synchronously, the third rotating speed is greater than the first rotating speed, and the third rotating speed is greater than the second rotating speed.

[0071] Regarding steps 203 and 204:

[0072] In the high-speed drying stage, the moisture content of the clothes is high, and fast system air circulation helps to speed up the heat exchange speed of the system, so that the moisture content of the clothes can be reduced faster, and the drying efficiency of the whole machine can be improved. Therefore, in the high-speed drying stage, the first fan and the second fan can be blown into the drying air duct at the same time. The high-speed drying stage can include a first sub-stage and a second sub-stage in turn, for example, entering the first sub-stage, the motor is controlled to rotate forward, so that the first fan blows air into the drying air duct at a first rotating speed. It can be understood that the operation of the first fan is related to the work of the motor, and since the motor is mainly used to drive the inner drum to rotate, the first fan is used as an auxiliary fan, the rotating speed of the first fan cannot be adjusted, and the first rotating speed of the first fan is determined according to the rotating speed of the motor driving the inner drum. Moreover, since the first fan is a one-way fan, when the motor rotates forward, the first fan can blow air into the drying air duct; when the motor reverses, although the first fan is also working, the first fan cannot blow air into the drying air duct at this time.

[0073] While the motor rotates forward to drive the first fan to blow air into the drying air duct at the first rotating speed, in order to speed up the heat exchange efficiency, the second fan can be controlled to blow air into the drying air duct at the second rotating speed synchronously, that is, the motor is controlled to rotate forward and the second fan is controlled to rotate at the second rotating speed, the two fans blow air into the drying air duct together, which can speed up the heat exchange efficiency and improve the drying efficiency.

[0074] It should be noted that in the high-speed drying process, if the motor is always forward rotating, the clothes are easy to be wound in one direction and cannot be untangled, which can cause uneven drying of the clothes and can also cause excessive wrinkles of the clothes after drying. Therefore, after the motor rotates forward for a certain period of time, the motor needs to be controlled to rotate reversely to turn over the clothes in the inner drum, which can uniformly dry the clothes and can also reduce the generation of wrinkles. That is, enter the second sub-stage, control the motor to rotate reversely to stop the first air blower from blowing air into the drying air duct pipe. Since the first air blower is a one-way air blower, the first air blower can only blow air into the drying air duct pipe when the motor rotates forward or the motor rotates reversely. The first air blower can be set to blow air into the drying air duct pipe when the motor rotates forward, so the first air blower cannot blow air into the drying air duct pipe when the motor rotates reversely. At this time, in order to ensure that the hot air in the drying air duct pipe can still flow faster, the second air blower can be adjusted to blow air into the drying air duct pipe at a third rotating speed, the third rotating speed being greater than the first rotating speed and the third rotating speed being greater than the second rotating speed. For example, in order to compensate for the air blowing of the first air blower, the third rotating speed can be the sum of the first rotating speed and the second rotating speed, so as to ensure that the system heat exchange efficiency is not affected when the motor rotates reversely.

[0075] After the motor rotates reversely and the second air blower runs at the third rotating speed for a set period of time, it is determined whether to enter the next running stage according to the moisture content of the clothes. The first time length and the second time length can be equal. If the moisture content of the clothes is lower than the first moisture content threshold, the next running stage can be entered. If the moisture content of the clothes is greater than or equal to the first moisture content threshold, the first sub-stage and the second sub-stage are cycled until the moisture content of the clothes is lower than the first moisture content threshold.

[0076] 205、Enter the third sub-stage, control the motor to rotate forward to make the first air blower blow air into the drying air duct pipe at the first rotating speed.

[0077] 206、Enter the fourth sub-stage, control the motor to rotate reversely and make the first air blower stop blowing air into the drying air duct pipe; synchronously control the second air blower to blow air into the drying air duct pipe at the second rotating speed or the third rotating speed, the third rotating speed being greater than the first rotating speed and the third rotating speed being greater than the second rotating speed.

[0078] Regarding steps 205 and 206:

[0079] In the constant-temperature drying stage, the moisture content of the clothes decreases at a reduced speed, and the system dries at a constant temperature, which saves power consumption and can make the moisture content of the clothes decrease uniformly.

[0080] The constant temperature drying stage can also be divided into two sub-stages, i.e., a third sub-stage and a fourth sub-stage, which can be performed in sequence. For example, the third sub-stage is entered, the motor is controlled to rotate in the positive direction, so that the first fan blows air into the drying air duct pipe at the first rotating speed. It can be understood that the moisture content of the clothes has been reduced at this time, and there is no need for the two fans to work simultaneously. Since the first fan rotates with the inner drum, the motor can be controlled to rotate in the positive direction when the third sub-stage of the constant temperature drying stage is entered, so that the first fan blows air into the drying air duct pipe at the first rotating speed, which can speed up the circulation of hot air. At this time, the second fan does not work to save energy.

[0081] Similarly, after the motor is operated in the positive direction for a set time, i.e., the fourth sub-stage is entered, in order to dry the clothes uniformly, the motor is controlled to rotate in the negative direction, and the first fan stops blowing air into the drying air duct pipe. Since the first fan cannot blow air into the heat exchange system, the second fan can be controlled to blow air into the drying air duct pipe at the second rotating speed or the third rotating speed at this time to improve the heat exchange efficiency of the system. Of course, the second fan can also be controlled to operate at the first rotating speed at this time, which can also improve the heat exchange efficiency of the system. The third rotating speed is greater than the second rotating speed, and the third rotating speed is greater than the first rotating speed. In some embodiments, the third rotating speed can be the sum of the first rotating speed and the second rotating speed.

[0082] After the second fan operates for a set time, it is determined whether to enter the next stage according to the moisture content of the clothes. For example, if the moisture content of the clothes is lower than the second moisture content threshold, the next operating stage can be entered. If the moisture content of the clothes is greater than or equal to the second moisture content threshold, the third sub-stage and the fourth sub-stage are cycled until the moisture content of the clothes is lower than the second moisture content threshold.

[0083] 207、Enter the fifth sub-stage, control the motor to rotate in the positive direction to make the first fan blow air into the drying air duct pipe.

[0084] 208、Enter the sixth sub-stage, control the motor to rotate in the negative direction for a set time to make the first fan stop blowing air into the drying air duct pipe.

[0085] 209、Enter the seventh sub-stage, adjust the motor to rotate in the positive direction to make the first fan blow air into the drying air duct pipe again.

[0086] Regarding steps 207 to 209:

[0087] In the low-temperature drying stage, the system temperature is reduced, and the moisture content of the clothes approaches the set condition. The last stage drying is performed by using the residual heat of the system. The low-temperature drying stage can include fifth, sixth and seventh sub-stages performed in sequence, and the system operates in different modes in each sub-stage.

[0088] For example, in the fifth sub-stage, the motor is controlled to rotate in the forward direction to drive the first air fan to send air into the drying air duct at the first rotating speed. It can be understood that at this time, the inner drum rotates, and the first air fan rotates following the rotation of the inner drum, and at this time, the moisture content of the clothes is low, so the first air fan is sufficient to improve the heat exchange efficiency, and the second air fan does not need to be started. After the motor rotates in the forward direction for a set time, in the sixth sub-stage, the motor is controlled to rotate in the reverse direction for a set time, which can be 1 minute, to turn over the clothes to make the clothes uniform, and the first air fan stops sending air into the drying air duct. It can be understood that at this time, the moisture content of the clothes is low, and the entire system can not need to send air, so the second air fan does not need to be started when the motor rotates in the reverse direction. The motor can be controlled to rotate in the reverse direction for a set time, such as 1 minute, and then in the seventh sub-stage, the motor is adjusted to rotate in the forward direction to turn over the clothes again, and the first air fan sends air into the drying air duct again. Whether the drying is ended is determined according to the moisture content of the clothes and the third moisture content threshold value. If the moisture content of the clothes is lower than the third moisture content threshold value, the drying is ended. If the moisture content of the clothes is greater than or equal to the third moisture content threshold value, the above fifth sub-stage, sixth sub-stage and seventh sub-stage are repeated until the moisture content of the clothes is lower than the third moisture content threshold value.

[0089] In the control method of the clothes dryer provided in the embodiments of the present application, different numbers of air fans are controlled to operate in different operating stages in the drying process. Because the moisture content of the clothes is different in different operating stages, the air volume is configured to be suitable for the operating stage with different moisture content, that is, the two air fans are operated in cooperation, which can improve the overall heat exchange efficiency of the clothes dryer, and further improve the drying efficiency of the clothes dryer. In addition, the first air fan is driven by the motor that drives the rotation of the inner drum, which can improve the energy utilization rate of the clothes dryer.

[0090] In order to better implement the control method of the clothes dryer provided in the embodiments of the present application, the embodiments of the present application further provide a control device of a clothes dryer. Please refer to Figure 3 , Figure 3 The structural schematic diagram of the control device of the clothes dryer provided in the embodiments of the present application. The control device 300 of the clothes dryer includes an acquisition unit 301 and a control unit 302. The clothes dryer can be a device with only drying function, and the clothes dryer can also be a washer-dryer or a washer-dryer with washing function and drying function. According to different drying principles, the clothes dryer can also be divided into electric heating type clothes dryer and heat pump type clothes dryer, etc. The clothes dryer includes an inner drum, a motor, a first air fan, a second air fan and a drying air duct. The inner drum is used to carry clothes, the motor is used to drive the rotation of the inner drum, and the motor can also drive the operation of the first air fan. The drying air duct is used for heat exchange with the inner drum, such as sending hot air into the inner drum through the drying air duct. The first air fan and the second air fan can send air into the drying air duct to accelerate the process of heat exchange. Of course, the clothes dryer also includes other parts such as a cabinet, a display panel, control buttons, etc., which are not limited here.

[0091] The obtaining unit 301 is configured to obtain a drying instruction of the clothes dryer.

[0092] The control unit 302 is configured to dry the clothes in the inner drum according to the drying instruction, and different control strategies are adopted in different operation stages during the drying process of the clothes, and the different control strategies correspond to different numbers of fan operations.

[0093] All the above technical solutions can be combined to form optional embodiments of the present application, which will not be described one by one here.

[0094] As can be seen from the above, in the control device 300 of the clothes dryer provided in the embodiments of the present application, different numbers of fans are controlled to operate in different operation stages during the drying process, and the different operation stages correspond to different water contents of the clothes. The air volume corresponding to the operation stage with different water content is configured, that is, the two fans are operated in cooperation, which can improve the overall heat exchange efficiency of the clothes dryer, and further improve the drying efficiency of the clothes dryer. Moreover, the first fan is driven by the motor driving the inner drum to rotate, which can improve the energy utilization rate of the clothes dryer.

[0095] Correspondingly, as shown in Figure 4 and Figure 5 , the first structure of the clothes dryer provided in the embodiments of the present application is shown in Figure 4 , the second structure of the clothes dryer provided in the embodiments of the present application is shown in Figure 5 , the present application further provides a clothes dryer 400, which comprises an inner drum 401, a drying air duct pipe 402, a first fan 403, a motor 404 and a second fan 405. Of course, the clothes dryer 400 also comprises other structural components, such as a box body, a display panel, etc. (not shown in the figure), which are not specifically limited here.

[0096] The inner drum 401 is configured to carry clothes to perform washing, drying, care and other treatments on the clothes. The drying air duct pipe 402 is configured to exchange heat with the inner drum 401. For example, for a heating system, the drying air duct pipe 402 can be in communication with the drying air duct pipe 402 to transmit hot air into the inner drum 401, and the hot air exchanges heat with the low-temperature moisture in the clothes to remove the moisture in the clothes, and the heat exchange is continuously performed to realize the drying of the clothes. The first fan 403 can send air into the drying air duct pipe 402 to accelerate the heat exchange efficiency. The motor 404 is connected with the inner drum 401 and the first fan 403, and the motor 404 is configured to drive the inner drum 401 to rotate and the first fan 403 to operate, and the rotation of the inner drum 401 and the operation of the first fan 403 are synchronous. The second fan 405 can send air into the drying air duct pipe 402, and the second fan 405 is independently controlled.

[0097] The inner cylinder 401 is coaxially arranged with the motor 404, and the first fan 403 is arranged on the side of the motor 404 away from the inner cylinder 401. The second fan 405 is arranged in the drying air duct pipe 402. Due to the limitation of the arrangement position, the first fan 403 is a one-way fan, and the second fan 405 can be a one-way fan or a two-way fan. The one-way fan can only blow air in one direction, and the two-way fan can blow air in two directions, and the two directions can be opposite directions.

[0098] Please refer to Figure 4 and Figure 5 and refer to Figure 6 , Figure 6 The structure block diagram of the clothes dryer provided in the embodiment of the present application is shown in FIG. 4. The clothes dryer 400 further includes a processor 406 having one or more processing cores, a memory 407 having one or more computer readable storage media, and a computer program stored in the memory 407 and executable on the processor 406. The processor 406 and the memory 407 are electrically connected. Those skilled in the art can understand that the structure of the clothes dryer 400 shown in the figure does not constitute a limitation on the clothes dryer, and can include more or fewer components than shown in the figure, or combine certain components, or different component arrangements.

[0099] The processor 406 is the control center of the clothes dryer 400, and connects various parts of the clothes dryer 400 through various interfaces and lines. For example, the processor 406 can be electrically connected with the inner cylinder 401, the motor 404, and the second fan 405, respectively. By running or loading the software program and / or module stored in the memory 407, and calling the data stored in the memory 407, the processor 406 can execute various functions of the clothes dryer 400 and process data, thereby monitoring the overall clothes dryer 400.

[0100] In the embodiment of the present application, the processor 406 in the clothes dryer 400 loads the instructions corresponding to the processes of one or more application programs into the memory 407, and runs the application programs stored in the memory 407 by the processor 406, thereby realizing various functions according to the following steps:

[0101] Obtaining a drying instruction of the clothes dryer;

[0102] Drying clothes in the inner cylinder according to the drying instruction, and adopting different control strategies in different operation stages during the drying process of the clothes, wherein the different control strategies correspond to different numbers of fan operations.

[0103] The specific implementation of each operation can be referred to the previous embodiments, which will not be described here.

[0104] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by related hardware controlled by the instructions, which can be stored in a computer readable storage medium and loaded and executed by a processor.

[0105] To this end, the embodiments of the present application provide a computer readable storage medium, which stores a plurality of computer programs capable of being loaded by a processor to execute the steps in any of the control methods of the laundry processing apparatuses provided by the embodiments of the present application.

[0106] The storage medium can include a read only memory (ROM), a random access memory (RAM), a magnetic disc or an optical disc, and various storage media capable of storing program codes.

[0107] Since the computer programs stored in the storage medium can execute the steps in any of the control methods of the laundry drying machines provided by the embodiments of the present application, the beneficial effects of any of the control methods of the laundry drying machines provided by the embodiments of the present application can be achieved, which are described in detail in the foregoing embodiments and will not be repeated here.

[0108] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0109] In the description of the present application, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features.

[0110] The laundry drying machine and the control method, the control device and the storage medium provided by the embodiments of the present application are described in detail above, and the specific examples are applied to the principles and implementation modes of the present application, and the above embodiment descriptions are only used to help understand the method and the core idea thereof; meanwhile, for those skilled in the art, the specific implementation modes and application ranges will be changed according to the idea of the present application, and in summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A control method of a clothes dryer, characterized by, The clothes dryer comprises an inner drum, a motor, a first fan, a second fan and a drying air duct pipe, the motor is used to drive the inner drum to rotate and the first fan to operate, and the first fan and the second fan can both send air into the drying air duct pipe; The control method comprises: obtaining a drying instruction of the clothes dryer; drying clothes in the inner drum according to the drying instruction, and adopting different control strategies in different operation stages during the drying process of the clothes, wherein different control strategies correspond to different numbers of fan operation; including: the operation stage comprises a high-speed drying stage, in the high-speed drying stage, the first fan and the second fan are controlled to operate, including: the high-speed drying stage comprises a first sub-stage and a second sub-stage, in the first sub-stage, the motor is controlled to rotate forward, so that the first fan sends air into the drying air duct pipe at a first rotating speed, and the second fan is controlled to send air into the drying air duct pipe at a second rotating speed; in the second sub-stage, the motor is controlled to rotate reversely, so that the first fan stops sending air into the drying air duct pipe; the second fan is adjusted to send air into the drying air duct pipe at a third rotating speed, the third rotating speed is greater than the first rotating speed, and the third rotating speed is greater than the second rotating speed.

2. The control method according to claim 1, characterized by, The operation stage further comprises a constant-temperature drying stage and a low-temperature drying stage; the control method comprises: in the constant-temperature drying stage or the low-temperature drying stage, one of the first fan and the second fan is controlled to operate.

3. The control method according to claim 2, characterized by, The constant-temperature drying stage comprises a third sub-stage and a fourth sub-stage, and the control method comprises: in the third sub-stage, the motor is controlled to rotate forward, so that the first fan sends air into the drying air duct pipe at a first rotating speed; in the fourth sub-stage, the motor is controlled to rotate reversely, so that the first fan stops sending air into the drying air duct pipe; the second fan is controlled to send air into the drying air duct pipe at a second rotating speed or a third rotating speed, the third rotating speed is greater than the first rotating speed, and the third rotating speed is greater than the second rotating speed.

4. The control method according to claim 2, characterized by, The low-temperature drying stage comprises a fifth sub-stage, a sixth sub-stage and a seventh sub-stage, and the control method further comprises: in the fifth sub-stage, the motor is controlled to rotate forward, so that the first fan sends air into the drying air duct pipe; in the sixth sub-stage, the motor is controlled to rotate reversely for a set time length, so that the first fan stops sending air into the drying air duct pipe; in the seventh sub-stage, the motor is adjusted to rotate forward, so that the first fan sends air into the drying air duct pipe again.

5. The control method according to any one of claims 1 to 4, characterized by, The control method further comprises: A running stage of the clothes dryer is determined according to a water content of the clothes in the inner drum.

6. A control device of a clothes dryer, characterized by, The clothes dryer comprises: an acquisition unit configured to acquire a drying instruction of the clothes dryer; a control unit configured to dry the clothes in the inner drum according to the drying instruction, and adopt different control strategies in different running stages during the drying of the clothes, wherein different control strategies correspond to different numbers of fan operation; the running stages comprise a high-speed drying stage, in which the first fan and the second fan are controlled to operate; the high-speed drying stage comprises a first sub-stage and a second sub-stage; in the first sub-stage, the motor is controlled to rotate forward, so that the first fan sends air into the drying air duct at a first rotating speed, and the second fan is controlled to send air into the drying air duct at a second rotating speed; in the second sub-stage, the motor is controlled to rotate reversely, so that the first fan stops sending air into the drying air duct; the second fan is adjusted to send air into the drying air duct at a third rotating speed, the third rotating speed is greater than the first rotating speed, and the third rotating speed is greater than the second rotating speed.

7. A computer readable storage medium having stored thereon a computer program, characterized in that The computer program, when executed on the computer, causes the computer to perform the control method of the clothes dryer according to any one of claims 1 to 5.

8. A clothes dryer characterized by The clothes dryer comprises: an inner drum configured to carry clothes; a drying air duct configured to exchange heat with the inner drum; a first fan configured to send air into the drying air duct; a motor connected with the inner drum and the first fan, and configured to drive the inner drum to rotate and the first fan to operate; a second fan configured to send air into the drying air duct; and a processor electrically connected with the motor and the second fan, respectively, and configured to: acquire a drying instruction of the clothes dryer; dry the clothes in the inner drum according to the drying instruction, and adopt different control strategies in different running stages during the drying of the clothes, wherein different control strategies correspond to different numbers of fan operation; the running stages comprise a high-speed drying stage, in which the first fan and the second fan are controlled to operate; the high-speed drying stage comprises a first sub-stage and a second sub-stage; in the first sub-stage, the motor is controlled to rotate forward, so that the first fan sends air into the drying air duct at a first rotating speed, and the second fan is controlled to send air into the drying air duct at a second rotating speed; in the second sub-stage, the motor is controlled to rotate reversely, so that the first fan stops sending air into the drying air duct; the second fan is adjusted to send air into the drying air duct at a third rotating speed, the third rotating speed is greater than the first rotating speed, and the third rotating speed is greater than the second rotating speed. The inner drum is coaxially arranged with the motor, the first fan is arranged on a side of the motor away from the inner drum; and / or 9. The clothes dryer according to claim 8, characterized in that, The second fan is arranged in the drying air duct. ​

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