Drying control method, drying control system, dryer, washer-dryer

Abstract

The present invention provides a drying control method, a drying control system, a dryer, and a washer-dryer, which relate to the technical field of drying. The drying control method includes real-time acquisition of the temperature value of at least one temperature sensor on a drying drum; processing the real-time acquired temperature value or the real-time acquired temperature value within each first preset time interval and then analyzing and judging: if the drying drum is judged to be in a cooling stage according to the real-time acquired temperature value or the value obtained after processing, the control continues to supply power according to the initial power; if the drying drum is judged to be in a heating stage, the corresponding power value is determined by comparing the corresponding relationship between the preset temperature value or the preset value obtained after processing and the power value, and the control supplies power according to the power value; if the drying drum is judged to have entered a constant temperature state, the control stops supplying power to the heating structure after a second preset time or directly stops supplying power, thereby achieving the technical effects of improving drying efficiency, shortening drying time and saving energy.

Description

Technical Field

[0001] The present invention relates to the technical field of drying, and in particular to a drying control method, a drying control system, a dryer, and a washer-dryer. Background Art

[0002] The existing method of heating the drying drum is to use an electric heating tube or a heat pump as a heat source to heat the air into hot air and then send it into the drying drum. When the hot air passes through the clothes in the drying drum, it removes moisture from the clothes, thereby achieving the effect of drying the clothes. The drying process is controlled based on the moisture blown out of the outlet of the drying drum. When the drying drum is running, since the existing drying drum dries the clothes by blowing hot air, it has the disadvantages of low heat transfer efficiency, long drying time and high energy consumption. Summary of the Invention

[0003] The purpose of the present invention is to provide a drying control method, control system, dryer, and washer-dryer with high drying efficiency and energy saving, so as to solve the technical problems of low heat transfer efficiency, long drying time and energy consumption in the drying methods in the prior art.

[0004] The present invention provides a drying control method, comprising:

[0005] The heating structure for heating the wall of the drying drum is supplied with power according to the initial power;

[0006] Real-time acquisition of the temperature value of at least one temperature sensor on the drying drum, wherein the temperature sensor is used to detect the wall temperature of the drying drum;

[0007] Analyze and judge the temperature value collected in real time, or analyze and judge the temperature value collected in real time within each first preset time interval after processing:

[0008] If it is determined that the drying drum is in the cooling stage according to the temperature value collected in real time or the value obtained after processing, the control continues to supply power to the heating structure according to the initial power;

[0009] If it is determined that the drying drum is in a heating stage according to the temperature value collected in real time or the value obtained after processing, the power value corresponding to the temperature value collected in real time or the value obtained after processing is determined by comparing the corresponding relationship between the preset temperature value or the preset value obtained after processing and the power value, and the heating structure is controlled to be powered according to the power value, and the power value is set to a decreasing trend in the heating stage;

[0010] If the drying drum is judged to have entered a constant temperature state according to the real-time collected temperature value or the processed temperature value, the heating structure is controlled to stop being supplied with power after the second preset time or the power supply to the heating structure is directly controlled to stop being supplied with power.

[0011] Furthermore, the temperature value of at least one temperature sensor on the drying drum is collected in real time, wherein the temperature sensor is used to detect the wall temperature of the drying drum, and the real-time collected temperature value is analyzed and judged, or the temperature value collected in real time within each first preset time interval is processed and analyzed and judged, including: real-time collection of temperature values from at least two temperature sensors on the drying drum, and analysis and judgment of the real-time collected temperature value.

[0012] Furthermore, the real-time acquisition of temperature values from at least two temperature sensors on the drying drum is real-time acquisition of temperature values from three temperature sensors evenly distributed on the drying drum.

[0013] Furthermore, if it is determined according to the real-time collected temperature value that the drying drum is in the cooling stage, then controlling to continue to supply power to the heating structure at the initial power includes:

[0014] If at least one of the temperature values fed back by all the temperature sensors collected in real time is within the first preset threshold range, the control continues to supply power to the heating structure at the initial power.

[0015] Furthermore, if it is determined that the drying drum is in the heating stage based on the temperature value collected in real time or the value obtained after processing, the power value corresponding to the temperature value collected in real time or the value obtained after processing is determined by comparing the corresponding relationship between the preset temperature value or the preset value obtained after processing and the power value, and the heating structure is controlled to be powered according to the power value, and in the heating stage, the power value shows a decreasing trend. The setting includes:

[0016] If the temperature values fed back by all temperature sensors collected in real time are all higher than the highest value of the first preset threshold range, it is judged that the drying drum is in the heating stage, then the power value corresponding to the average temperature value collected in real time by all temperature sensors is determined by comparing the correspondence between the preset temperature value and the power value, and the heating structure is controlled to be powered according to the power value, and in the heating stage, the power value shows a decreasing trend.

[0017] Furthermore, if it is determined that the drying drum has entered a constant temperature state according to the real-time collected temperature value or the processed temperature value, controlling the heating structure to stop supplying power after a second preset time or directly controlling the heating structure to stop supplying power includes:

[0018] If the temperature values fed back by all temperature sensors collected in real time remain unchanged, it is determined that the drying drum has entered a constant temperature state, and the heating structure is controlled to stop supplying power after the second preset time.

[0019] Furthermore, collecting the temperature value of at least one temperature sensor on the drying drum in real time, analyzing and judging the real-time collected temperature value, or analyzing and judging the real-time collected temperature value after processing each first preset time interval includes:

[0020] The temperature value of a temperature sensor on the drying drum is collected in real time. From the temperature values collected in real time within each first preset time interval, a predetermined number of maximum temperature values are selected and the average value t1 of the maximum temperature values is calculated. A predetermined number of minimum temperature values are selected and the average value t2 of the minimum temperature values is calculated. The temperature difference value △t=t1-t2 is analyzed and judged.

[0021] Furthermore, if it is determined that the drying drum is in a cooling stage according to the temperature value collected in real time or the value obtained after processing, then controlling to continue to supply power to the heating structure according to the initial power includes:

[0022] If the temperature difference Δt is within the second preset threshold range, it is determined that the temperature of the drying drum is continuously low, and the drying drum is controlled to continue drying at the initial power.

[0023] Furthermore, if it is determined that the drying drum is in the heating stage based on the temperature value collected in real time or the value obtained after processing, the power value corresponding to the temperature value collected in real time or the value obtained after processing is determined by comparing the corresponding relationship between the preset temperature value or the preset value obtained after processing and the power value, and the heating structure is controlled to be powered according to the power value, and in the heating stage, the power value shows a decreasing trend. The setting includes:

[0024] If the temperature difference △t is less than the lowest temperature value within the second preset threshold range, the power value corresponding to the temperature difference △t is determined by comparing the preset correspondence between the temperature difference and the power value, and the heating structure is controlled to be powered according to the power value, and in the heating stage, the power value is set to a decreasing trend.

[0025] Furthermore, if it is determined that the drying drum has entered a constant temperature state according to the real-time collected temperature value or the processed temperature value, controlling the heating structure to stop supplying power after a second preset time or directly controlling the heating structure to stop supplying power includes:

[0026] If the temperature difference value △t≈0 determines that the drying drum enters a constant temperature state, the heating structure is controlled to stop supplying power after a second preset time or the power supply to the heating structure is directly stopped.

[0027] Furthermore, each time the power is adjusted, the rotation speed of the drying drum is adjusted accordingly, and the rotation speed is adjusted in an increasing trend.

[0028] Furthermore, the initial power is full power, and the end power is minimum power.

[0029] Furthermore, the heating structure is a heating film.

[0030] The present invention provides a drying control system, comprising a power adjustment module, a processor, a memory, and a computer program stored in the memory and executable on the processor. The power adjustment module is electrically connected to the processor and is configured to control the power adjustment of the drying drum according to instructions issued by the processor. When the computer program is executed by the processor, the drying control method described above is implemented.

[0031] Furthermore, it also includes a speed adjustment module, which is electrically connected to the processor and is used to control the rotation speed of the drying drum to adjust in an increasing trend according to instructions issued by the processor.

[0032] The present invention provides a dryer, including a drying drum and a drying control system as described above, wherein the drying drum includes a drum body, a heating structure arranged on the drum body for heating the drum body, and at least one temperature sensor arranged on the wall of the drum body for detecting the temperature of the drum body in real time.

[0033] Furthermore, the drying machine is a clothes dryer.

[0034] The present invention provides a washing and drying integrated control system, including a power adjustment module, a processor, a memory and a computer program stored in the memory and runnable on the processor, wherein the computer program includes a drying control program, and the power adjustment module is electrically connected to the processor and is used to control the power adjustment of the drying drum according to instructions issued by the processor. When the drying control program is executed by the processor, the drying control method described above is implemented.

[0035] Furthermore, it also includes a speed adjustment module, which is electrically connected to the processor and is used to control the rotation speed of the drying drum to adjust in an increasing trend according to instructions issued by the processor.

[0036] The present invention provides a washer-dryer, comprising an outer drum and an inner drum, the inner drum serving as a drying drum, and the washer-dryer control system as described above, the drying drum comprising a drum body, a heating structure arranged on the drum body for heating the drum body, and at least one temperature sensor arranged on the wall of the drum body for detecting the temperature of the drum body in real time.

[0037] The present invention provides a drying control method that utilizes the relationship between the humidity of the object to be dried (such as wet clothes) and the temperature of the drying drum. By real-time monitoring of the temperature of a fixed point or several points on the drying drum, the temperature is used as data for real-time analysis of the drying condition of the object to be dried (such as wet clothes) in the drying drum, so as to control the drying power and duration according to the drying condition.

[0038] During the initial operation of the drying drum, the temperature value fed back by the temperature sensor on the drying drum will cool down. During this cooling stage, the humidity of the dried objects (such as wet clothes) is relatively high, and a higher initial power is required to power the heating structure to improve drying efficiency.

[0039] After the cooling stage, the drying drum will have a heating stage. During this heating stage, the moisture content of the drying object (such as wet clothes) gradually decreases. The power can be adjusted accordingly according to the heating situation, so that the clothes can be dried quickly while achieving energy saving effects.

[0040] Towards the end of drying, the moisture on the dried items (e.g., wet clothes) is completely dried. After the drying drum reaches a constant temperature after the heating phase, the dried items (e.g., wet clothes) are dried, and the heating structure is controlled to supply power at the end of the second preset time before stopping. Because the dried items (e.g., wet clothes) are dried in contact with the wall of the drying drum, the drying efficiency is higher than that of hot air drying, and the drying time is shorter. Adjusting the power supplied to the heating structure based on the dryness of the dried items (e.g., wet clothes) at each stage achieves both rapid drying and energy conservation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] Figure 1 A schematic flow chart of a drying control method provided in an embodiment of the present invention;

[0043] Figure 2 A schematic diagram of a process for analyzing and judging real-time collected temperature values by setting at least two sensors according to an embodiment of the present invention;

[0044] Figure 3 A schematic diagram of a flow chart for analyzing and judging the temperature values collected in real time by a sensor provided in an embodiment of the present invention;

[0045] Figure 4 This is a drying control system provided by an embodiment of the present invention.

[0046] Icon: 400 - drying control system; 401 - processor; 402 - memory; 403 - bus; 404 - power adjustment module; 405 - speed adjustment module. DETAILED DESCRIPTION

[0047] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] like Figure 1 As shown, an embodiment of the present invention provides a drying control method, including:

[0049] S101, supplying power to a heating structure for heating the wall of the drying drum according to the initial power;

[0050] S102, collecting a temperature value of at least one temperature sensor on the drying drum in real time, wherein the temperature sensor is used to detect the wall temperature of the drying drum;

[0051] S103: Analyze and judge the temperature value collected in real time, or analyze and judge the temperature value collected in real time within each first preset time interval after processing:

[0052] If it is determined that the drying drum is in the cooling stage according to the temperature value collected in real time or the value obtained after processing, the control continues to supply power to the heating structure according to the initial power;

[0053] If it is determined that the drying drum is in a heating stage according to the temperature value collected in real time or the value obtained after processing, the power value corresponding to the temperature value collected in real time or the value obtained after processing is determined by comparing the corresponding relationship between the preset temperature value or the preset value obtained after processing and the power value, and the heating structure is controlled to be powered according to the power value, and the power value is set to a decreasing trend in the heating stage;

[0054] If the drying drum is judged to have entered a constant temperature state according to the real-time collected temperature value or the processed temperature value, the heating structure is controlled to stop being supplied with power after the second preset time or the power supply to the heating structure is directly controlled to stop being supplied with power.

[0055] By executing S101, when the drying drum is started, the heating structure for heating the wall of the drying drum is controlled to be supplied with power according to the initial power, so that the drying drum is heated up quickly.

[0056] Since there is a certain relationship between the humidity of the dried object (such as wet clothes) and the temperature of the drying drum, by executing S102, the temperature of a fixed location or several locations on the drying drum is monitored in real time as data for real-time analysis of the drying condition of the dried object (such as wet clothes) in the drying drum, so as to control the drying power and duration according to the drying condition.

[0057] However, since the objects being dried (e.g., wet clothes) are relatively cool when placed in the drying drum, when they come into contact with the heated drum wall during rotation, the cooler objects (e.g., wet clothes) remove heat from the contact area, causing the temperature of that area to drop. Therefore, during the initial stages of the drying operation, the temperature value reported by the temperature sensor on the drying drum will experience a cooling phase. This means that when this cooling phase is detected, the humidity of the objects (e.g., wet clothes) is relatively high, requiring a higher initial power supply to the heating structure to improve drying efficiency.

[0058] As the drying time goes by, the moisture on the objects to be dried (such as wet clothes) becomes less and less, and the heat taken away from the drum wall also becomes less and less. Therefore, the drying drum will have a heating stage after the cooling stage. As the moisture on the objects to be dried (such as wet clothes) becomes less and less, the temperature of the drum wall becomes higher and higher, and there is no need to power the heating structure with a large initial power. Therefore, in this heating stage, the power can be adjusted accordingly according to the heating situation, so as to achieve the effect of quickly drying clothes while saving energy.

[0059] At the end of the drying process, the moisture on the objects (e.g., wet clothes) is completely dried, and the objects (e.g., wet clothes) no longer remove heat from the drum wall. Therefore, after the heating stage, the drying drum reaches a constant temperature. At this point, the objects (e.g., wet clothes) are dried, and the heating structure is controlled to supply power at the end of the second preset time period before stopping. By executing S103, real-time temperatures collected from several fixed locations on the drying drum are analyzed and determined, or real-time temperatures collected from a fixed location on the drying drum are processed and analyzed, to determine the current stage of the drying drum and adjust the power supplied to the heating structure accordingly. Because the objects (e.g., wet clothes) are dried in contact with the drum wall, the drying efficiency is higher than that of hot air drying, and the drying time is shorter. Adjusting the power supplied to the heating structure based on the dryness of the clothes at each stage allows for faster drying while achieving energy savings.

[0060] The following describes an example of collecting temperature values from at least two temperature sensors on a drying drum in real time and analyzing and judging the collected temperature values in real time.

[0061] like Figure 2 As shown, the temperature values of at least two temperature sensors on the drying drum are collected in real time, and the real-time collected temperature values are analyzed and judged.

[0062] At least two places means that the temperature sensors at two places on the drying drum can be set to collect the temperature values in real time, or the temperature sensors at three places, four places, five places or more can be set to collect the temperature values in real time. However, as a preferred method, real-time collection of the temperature values of the temperature sensors set at three places on the drying drum is the best and the detection is more accurate, and it is further preferred that the temperature sensors at these three places are evenly distributed on the drying drum.

[0063] S201: If at least one of the temperature values fed back by all temperature sensors collected in real time is within a first preset threshold range, control to continue to supply power to the heating structure at the initial power.

[0064] S202. If the temperature values fed back by all temperature sensors collected in real time are all higher than the highest value of the first preset threshold range, it is determined that the drying drum is in the heating stage, then the power value corresponding to the average temperature value collected in real time by all temperature sensors is determined by comparing the corresponding relationship between the preset temperature value and the power value, and the heating structure is controlled to be powered according to the power value, and in the heating stage, the power value shows a decreasing trend.

[0065] S203: If the temperature values fed back by all temperature sensors collected in real time remain unchanged, it is determined that the drying drum has entered a constant temperature state, and the heating structure is controlled to stop supplying power after a second preset time or the heating structure is directly controlled to stop supplying power.

[0066] In S201, the first preset threshold range can be designed based on experimental data, such as being set within the range of 58°C to 62°C. Since the heating structure is supplied with power according to the initial power when the drying drum is turned on, the initial power is generally set to full power, that is, the maximum power, such as 1700W. Therefore, the wall temperature of the drying drum is relatively high. When the dried object (such as wet clothes) contacts the part of the drying drum where the temperature sensor is provided, heat is taken away, thereby causing the data detected by the temperature sensor at that part to decrease. Therefore, as long as there is a temperature value within the first preset threshold range, it proves that the drying drum is in the cooling stage, the humidity of the dried object (such as wet clothes) is relatively high, and it is necessary to continue to supply power according to the initial power.

[0067] In S202, if the temperature values collected in real time by all temperature sensors are all above the highest value within the first preset threshold range, this indicates that the moisture content of the object being dried (e.g., wet clothing) is decreasing, and the amount of heat removed from the drum wall is decreasing, thereby determining that the drying drum is in the heating phase. As the moisture content of the object being dried (e.g., wet clothing) decreases, the initial power supply is no longer required. Instead, a power value corresponding to the average value of the temperatures collected in real time by all temperature sensors can be determined by comparing a preset correspondence between temperature values and power values, and power supply to the heating structure can be controlled according to this power value. The preset correspondence between temperature values and power values can be set based on experimental data. For example, when the average temperature value is approximately 70°C, the power value is 1500W; when the average temperature value is 75°C, the power value is 1300W, and so on.

[0068] In S203, if the temperature values fed back by all temperature sensors collected in real time remain unchanged, it proves that the moisture on the dried object (such as wet clothes) has been dried, and it is judged that the drying drum has entered a constant temperature state. At this time, the heating structure can be controlled to stop supplying power after the second preset time or the heating structure can be controlled to stop supplying power.

[0069] like Figure 3 As shown, the following takes the real-time collection of the temperature value of a temperature sensor on a drying drum, and the analysis and judgment of the real-time collected temperature value after processing every first preset time as an example for introduction.

[0070] S301. Collect the temperature value of a temperature sensor on the drying drum in real time. Select a predetermined number of maximum temperature values from the temperature values collected in real time within each first preset time interval, and calculate the average value t1 of the maximum temperature values. Select a predetermined number of minimum temperature values, and calculate the average value t2 of the minimum temperature values. The temperature difference value △t=t1-t2 is analyzed and judged.

[0071] S302: If the temperature difference Δt is within a second preset threshold range, it is determined that the temperature of the drying drum is continuously low, and the drying drum is controlled to continue drying at the initial power.

[0072] S303. If the temperature difference Δt is less than the lowest temperature value within the second preset threshold range, the power value corresponding to the temperature difference Δt is determined by comparing the preset correspondence between the temperature difference and the power value, and the heating structure is controlled to be powered according to the power value. In the heating stage, the power value is set to a decreasing trend.

[0073] S304: If the temperature difference Δt≈0 and is maintained for the third preset time, it is determined that the drying drum enters a constant temperature state, then the heating structure is controlled to stop supplying power after the second preset time or the heating structure is directly controlled to stop supplying power.

[0074] In S301, since the object to be dried (such as wet clothes) does not always maintain contact with the portion of the wall of the drying drum where the temperature sensor is provided during the rotation of the drying drum, the temperature value detected when the object to be dried (such as wet clothes) contacts this portion is low, and the temperature value detected when the object to be dried (such as wet clothes) does not contact the wall is high. Therefore, within each first preset time interval, the temperature difference Δt between the average value t1 of a predetermined number of maximum temperature values and the average value t2 of a predetermined number of minimum temperature values can be used to determine the stage of the drying drum. The first preset time interval can be set based on experimental data, such as every 0.5 minute.

[0075] In S302 , the second preset threshold range can be set according to experimental data, such as 38° C. to 42° C. When drying begins, the humidity of the dried object (such as wet clothes) is relatively high, so the temperature difference Δt will be relatively large.

[0076] In S303, if the temperature difference Δt is less than the lowest temperature value within the second preset threshold range, it proves that the temperature of the drying drum increases and the temperature difference Δt becomes smaller. The corresponding relationship between the preset temperature difference and the power value can also be set according to experimental data.

[0077] In step S304, if the temperature difference Δt ≈ 0, it indicates that the moisture in the object being dried (e.g., wet clothes) has been completely dried, and the temperature on the wall of the drying drum no longer changes, indicating that the temperature has entered a constant state. At this point, the power supply can be continued for the second preset time or stopped immediately.

[0078] Whether one or multiple temperature sensors are installed on the drying drum, it is preferred that the drying drum speed be adjusted accordingly with each power adjustment, and that the speed be adjusted in an increasing manner. This allows the drying drum to slow down when the objects (e.g., wet clothes) are initially damp, ensuring sufficient contact between the objects (e.g., wet clothes) and the walls of the drying drum to remove moisture. As drying time progresses, the moisture content of the objects (e.g., wet clothes) decreases, and the drying drum speeds up, ensuring that the objects (e.g., wet clothes) are heated and dried as evenly as possible.

[0079] At the same time, it is preferred that the initial power is full power, and the end power is minimum power. The initial power, the correspondence between the preset temperature value or the value obtained after the preset processing and the power value, and the end power can be set according to actual needs. For example, multiple drying modes can be set according to the material of the clothes to be dried. Different drying modes correspond to different initial powers, the correspondence between the preset temperature value or the value obtained after the preset processing and the power value, and the end power.

[0080] Furthermore, there can be multiple heating structures, such as a heating wire wrapped around the drying drum. In this embodiment, the preferred heating structure is a heating film. The heating film as the heating structure of the drying drum is not only safe and easy to set up, but also heats quickly, thereby improving the drying efficiency.

[0081] like Figure 4 As shown, an embodiment of the present invention provides a drying control system 400, including a power adjustment module 404, a processor 401, a memory 402, a bus 403 for connecting the processor 401 and the memory 402, and a computer program stored in the memory 402 and executable on the processor 401. The power adjustment module 404 is electrically connected to the processor 401, and is used to control the power adjustment of the drying drum according to instructions issued by the processor 401. When the computer program is executed by the processor 401, the drying control method as described above is implemented.

[0082] Furthermore, the system further includes a speed adjustment module 405 , which is electrically connected to the processor 401 and is configured to control the rotation speed of the drying drum to be adjusted in an increasing trend according to instructions issued by the processor 401 .

[0083] A dryer provided by an embodiment of the present invention includes a drying drum and a drying control system as described above, wherein the drying drum includes a drum body, a heating structure arranged on the drum body for heating the drum body, and at least one temperature sensor arranged on the wall of the drum body for detecting the temperature of the drum body in real time.

[0084] According to the purpose of the dryer, the dryer may be a clothes dryer. According to the object to be dried, the corresponding initial power, the preset temperature value or the corresponding relationship between the preset processed value and the power value, and the end power can be set.

[0085] An embodiment of the present invention provides a washing and drying integrated control system, including a power adjustment module, a processor, a memory, and a computer program stored in the memory and runnable on the processor, wherein the computer program includes a drying control program, and the power adjustment module is electrically connected to the processor for controlling the power adjustment of the drying drum according to instructions issued by the processor. When the drying control program is executed by the processor, the drying control method described above is implemented.

[0086] For a washing and drying integrated control system, the computer program may include a washing program, a dehydration program, a drying control program, etc., wherein the drying control program may be executed alone or after the dehydration program, so as to be selected and executed according to the needs of the user.

[0087] The integrated washer-dryer control system further includes a speed adjustment module, which is electrically connected to the processor and is used to control the rotation speed of the drying drum to adjust in an increasing trend according to instructions issued by the processor.

[0088] A washer-dryer provided in an embodiment of the present invention includes an outer drum and an inner drum, the inner drum serving as a drying drum, and a washer-dryer control system as described above, the drying drum including a drum body, a heating structure provided on the drum body for heating the drum body, and at least one temperature sensor provided on the wall of the drum body for detecting the temperature of the drum body in real time.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drying control method, characterized in that: include: The heating structure for heating the wall of the drying drum is supplied with power according to the initial power; Real-time acquisition of the temperature value of at least one temperature sensor on the drying drum, wherein the temperature sensor is used to detect the wall temperature of the drying drum; Analyze and judge the temperature value collected in real time, or analyze and judge the temperature value collected in real time within each first preset time interval after processing: If it is determined that the drying drum is in the cooling stage according to the temperature value collected in real time or the value obtained after processing, the control continues to supply power to the heating structure according to the initial power; If it is determined that the drying drum is in a heating stage according to the temperature value collected in real time or the value obtained after processing, the power value corresponding to the temperature value collected in real time or the value obtained after processing is determined by comparing the corresponding relationship between the preset temperature value or the preset value obtained after processing and the power value, and the heating structure is controlled to be powered according to the power value, and the power value is set to a decreasing trend in the heating stage; If the drying drum is judged to have entered a constant temperature state according to the real-time collected temperature value or the processed temperature value, the heating structure is controlled to stop being supplied with power after the second preset time or the power supply to the heating structure is directly controlled to stop being supplied with power.

2. The drying control method according to claim 1, characterized in that: Real-time collection of the temperature value of at least one temperature sensor on the drying drum, wherein the temperature sensor is used to detect the wall temperature of the drying drum, and analysis and judgment of the real-time collected temperature value, or analysis and judgment after processing the real-time collected temperature value within each first preset time interval, includes: real-time collection of the temperature values of at least two temperature sensors on the drying drum, and analysis and judgment of the real-time collected temperature value.

3. The drying control method according to claim 2, characterized in that: The real-time acquisition of temperature values from at least two temperature sensors on the drying drum is real-time acquisition of temperature values from three temperature sensors evenly distributed on the drying drum.

4. The drying control method according to claim 2, characterized in that: If it is determined according to the real-time collected temperature value that the drying drum is in the cooling stage, then controlling to continue to supply power to the heating structure at the initial power includes: If at least one of the temperature values fed back by all the temperature sensors collected in real time is within the first preset threshold range, the control continues to supply power to the heating structure at the initial power.

5. The drying control method according to claim 4, characterized in that: If it is determined that the drying drum is in a heating stage according to the temperature value collected in real time or the value obtained after processing, the power value corresponding to the temperature value collected in real time or the value obtained after processing is determined by comparing the corresponding relationship between the preset temperature value or the preset value obtained after processing and the power value, and the heating structure is controlled to be powered according to the power value, and the power value shows a decreasing trend in the heating stage. The setting includes: If the temperature values fed back by all temperature sensors collected in real time are all higher than the highest value of the first preset threshold range, it is judged that the drying drum is in the heating stage, then the power value corresponding to the average temperature value collected in real time by all temperature sensors is determined by comparing the correspondence between the preset temperature value and the power value, and the heating structure is controlled to be powered according to the power value, and in the heating stage, the power value shows a decreasing trend.

6. The drying control method according to claim 5, characterized in that: If it is determined according to the real-time collected temperature value or the processed temperature value that the drying drum enters the constant temperature state, controlling the heating structure to stop supplying power after the second preset time or directly controlling the heating structure to stop supplying power includes: If the temperature values fed back by all temperature sensors collected in real time remain unchanged, it is determined that the drying drum has entered a constant temperature state, and the heating structure is controlled to stop supplying power after the second preset time.

7. The drying control method according to claim 1, characterized in that: Real-time acquisition of the temperature value of at least one temperature sensor on the drying drum, analyzing and judging the real-time acquired temperature value, or analyzing and judging the real-time acquired temperature value after processing each first preset time interval includes: The temperature value of a temperature sensor on the drying drum is collected in real time. From the temperature values collected in real time within each first preset time interval, a predetermined number of maximum temperature values are selected and the average value t1 of the maximum temperature values is calculated. A predetermined number of minimum temperature values are selected and the average value t2 of the minimum temperature values is calculated. The temperature difference value △t=t1-t2 is analyzed and judged.

8. The drying control method according to claim 7, characterized in that: If it is determined that the drying drum is in the cooling stage according to the real-time collected temperature value or the processed value, then the control continues to supply power to the heating structure according to the initial power, including: If the temperature difference Δt is within the second preset threshold range, it is determined that the temperature of the drying drum is continuously low, and the drying drum is controlled to continue drying at the initial power.

9. The drying control method according to claim 8, characterized in that: If it is determined that the drying drum is in a heating stage according to the temperature value collected in real time or the value obtained after processing, the power value corresponding to the temperature value collected in real time or the value obtained after processing is determined by comparing the corresponding relationship between the preset temperature value or the preset value obtained after processing and the power value, and the heating structure is controlled to be powered according to the power value, and the power value shows a decreasing trend in the heating stage. The setting includes: If the temperature difference △t is less than the lowest temperature value within the second preset threshold range, the power value corresponding to the temperature difference △t is determined by comparing the preset correspondence between the temperature difference and the power value, and the heating structure is controlled to be powered according to the power value, and in the heating stage, the power value is set to a decreasing trend.

10. The drying control method according to claim 9, characterized in that: If it is determined according to the real-time collected temperature value or the processed temperature value that the drying drum enters the constant temperature state, controlling the heating structure to stop supplying power after the second preset time or directly controlling the heating structure to stop supplying power includes: If the temperature difference value △t≈0 determines that the drying drum enters a constant temperature state, the heating structure is controlled to stop supplying power after a second preset time or the power supply to the heating structure is directly stopped.

11. The drying control method according to any one of claims 1 to 10, characterized in that: Each time the power is adjusted, the speed of the drying drum is adjusted accordingly, and the speed is adjusted in an increasing trend.

12. The drying control method according to any one of claims 1 to 10, characterized in that: The initial power is full power, and the end power is minimum power.

13. The drying control method according to any one of claims 1 to 10, characterized in that: The heating structure is a heating film.

14. A drying control system, characterized in that: The device comprises a power adjustment module, a processor, a memory, and a computer program stored in the memory and executable on the processor. The power adjustment module is electrically connected to the processor and is configured to control the power adjustment of the drying drum according to instructions issued by the processor. When the computer program is executed by the processor, the drying control method according to any one of claims 1 to 13 is implemented.

15. The drying control system according to claim 14, characterized in that: It also includes a speed adjustment module, which is electrically connected to the processor and is used to control the rotation speed of the drying drum to adjust in an increasing trend according to instructions issued by the processor.

16. A drying machine, characterized in that: It includes a drying drum and a drying control system as described in claim 14 or 15, wherein the drying drum includes a drum body, a heating structure arranged on the drum body for heating the drum body, and at least one temperature sensor arranged on the wall of the drum body for detecting the temperature of the drum body in real time.

17. The drying machine according to claim 16, characterized in that The drying machine is a clothes dryer.

18. A washing and drying integrated control system, characterized in that: The device comprises a power adjustment module, a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the computer program comprises a drying control program. The power adjustment module is electrically connected to the processor and is configured to control the power adjustment of the drying drum according to instructions issued by the processor. When the drying control program is executed by the processor, the drying control method according to any one of claims 1 to 13 is implemented.

19. The washer-dryer integrated control system according to claim 18, characterized in that: It also includes a speed adjustment module, which is electrically connected to the processor and is used to control the rotation speed of the drying drum to adjust in an increasing trend according to instructions issued by the processor.

20. A washer-dryer, characterized in that: It includes an outer drum and an inner drum, the inner drum serves as a drying drum, and a washing and drying integrated control system as described in claim 18 or 19, the drying drum includes a drum body, a heating structure arranged on the drum body for heating the drum body, and at least one temperature sensor arranged on the wall of the drum body for detecting the temperature of the drum body in real time.

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