Drying control method and washing and drying all-in-one machine adopting same

Abstract

A drying control method and a washing and drying all-in-one machine using the same are characterized in that the drying control method comprises the following steps: 1, dividing drying work gears; 2, performing initialization setting; 3, the current air inlet temperature is detected; fourthly, whether the stable air inlet temperature is reached or not is judged, and if yes, the next fifth step is executed; if not, returning to the step 3; 5, the amount of the clothes is judged, and drying work gears are determined; 6, the current air outlet temperature is detected; 7, judging whether a preset drying stop temperature is reached or not, and if so, executing the next step 8; if not, returning to the step 6; and 8, stopping the drying procedure, and ending the procedure. The method has the advantages that the amount of the clothes is firstly judged through the stable air inlet temperature, different air outlet temperature dry judgment points are matched according to the amount of the clothes, the situation that the small-mass clothes are over-dried and the large-mass clothes are not dry due to the same temperature dry judgment point is avoided, and the control method is simple and easy to implement.

Description

Technical Field

[0001] The invention relates to a drying control method, in particular to a drying control method and a washer-dryer adopting the method. Background Art

[0002] In the prior art, the drying equipment on the market often has the problem of uneven drying during the drying process, causing small and thin clothes to be over-dried, while large and heavy clothes cannot be dried. How to dry clothes of different materials and qualities just right has become an important research topic for washing and drying equipment.

[0003] The current washing and drying machines generally use the following two methods for judging dryness: The first method for judging dryness is to detect the outlet temperature during the drying process. When the drying temperature of the outlet reaches the set threshold, it is judged to be dry. For example, the Chinese invention patent application "Clothing Drying Processing Method, Device, Dryer and Computer Storage Medium" with application number 202211626761.9 provides a clothing drying processing method, which determines the clothing temperature of the target clothing in the drum according to the temperature of the flowing air at the drum outlet, determines the drying state of the clothing according to the clothing temperature, and performs relevant operations on the clothing drying processing device. However, the temperature judgment of the clothing in this patent is implemented in the same mode. Regardless of the amount of clothing being dried, the same dryness judgment temperature threshold is used. Therefore, it will cause small-mass clothing to be over-dried and large-mass clothing to not be dried dry. The drying program cannot be adjusted according to the actual amount of clothing.

[0004] The second method of judging dryness is to use weighing to determine the drying program based on the weight of the clothes. For example, the Chinese invention patent "Control method for clothes drying equipment and clothes drying equipment" with patent number 201710680419.X and the Chinese invention patent application "Clothing drying method, clothing processing device and storage medium" with application number 202110252144.6 both use weighing to first determine the weight of the clothes, and then select the corresponding drying program based on the weight of the clothes. However, this direct weighing method has measurement errors (about 0.5kg), especially for wet clothes. Due to different materials or water absorption, the weighing results are less accurate and the measurement errors are large.

[0005] In summary, the drying technology in the prior art still has the above-mentioned problems and cannot guarantee a better drying effect under different clothing amounts, and further improvement and perfection are needed. Summary of the invention

[0006] The first technical problem to be solved by the present invention is to provide a drying control method with small measurement error and better drying effect in response to the above-mentioned existing technical status. The drying control method can solve the problem that light-weight clothes are over-dried while heavy-weight clothes cannot be dried.

[0007] The second technical problem to be solved by the present invention is to provide a washer-dryer that adopts the above-mentioned drying control method to realize its operation in response to the above-mentioned existing technical status.

[0008] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a drying control method, characterized in that the drying control method comprises the following steps:

[0009] Step 1: pre-dividing the corresponding drying working gears according to the amount of clothes, each drying working gear corresponds to a preset stable air inlet temperature and a preset drying stop temperature;

[0010] Step 2: Start the program and initialize the settings;

[0011] Step 3: The inlet air temperature sensor detects the current inlet air temperature;

[0012] Step 4: Determine whether the current inlet air temperature reaches the stable inlet air temperature. If yes, proceed to the next step 5; if no, return to the previous step 3;

[0013] Step 5: judging the amount of clothes according to the currently detected stable air inlet temperature, and determining the corresponding drying working gear according to the amount of clothes;

[0014] Step 6: The air outlet temperature sensor detects the current air outlet temperature;

[0015] Step 7: Determine whether the current air outlet temperature reaches the preset drying stop temperature corresponding to the current drying working gear. If yes, proceed to the next step 8; if no, return to step 6;

[0016] Step 8: Stop the drying process and the process ends.

[0017] Preferably, the drying working gear in step 1 can be divided into multiple gears according to actual usage. The more gears there are, the more refined management of the amount of clothes can be achieved, and the best drying effect can be obtained. According to user experience, it is best to divide it into three gears, which can basically adapt to the current laundry habits of various users. The three gears are:

[0018] ①. The amount of clothes corresponding to the first drying working gear is a small amount of clothes, wherein the preset stable air inlet temperature corresponding to the first drying working gear is set to T1, and the preset drying stop temperature corresponding to the first drying working gear is T4;

[0019] ② The amount of clothes corresponding to the second drying working gear is medium clothes, wherein the preset stable air inlet temperature corresponding to the second drying working gear is set to T2, and the preset drying stop temperature corresponding to the first drying working gear is T5;

[0020] ③. The amount of clothes corresponding to the third drying working gear is a large amount of clothes. The preset stable air inlet temperature corresponding to the third drying working gear is set to T3, and the preset drying stop temperature corresponding to the first drying working gear is T6.

[0021] As a further preference, in combination with the above three drying working gears, the drying control method comprises the following steps:

[0022] Step 1, pre-dividing the three drying working gears into small, medium and large amounts of clothes;

[0023] Step 2: Start the program and initialize the settings;

[0024] Step 3: The inlet air temperature sensor detects the current inlet air temperature and determines whether the current inlet air temperature reaches the stable inlet air temperature. If yes, execute the next step 4; if no, loop this step;

[0025] Step 4: determine whether the currently detected stable air inlet temperature Tin is greater than or equal to the preset stable air inlet temperature T1. If yes, proceed to the next step 5; if no, return to step 3;

[0026] Step 5: determine whether the currently detected stable air inlet temperature Tin is less than the preset stable air inlet temperature T2. If so, the air outlet temperature sensor detects the current air outlet temperature and executes the next step 6; if not, execute step 7;

[0027] Step 6: Determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T4. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is repeated;

[0028] Step 7: determine whether the currently detected stable air inlet temperature Tin is less than the preset stable air inlet temperature T3. If so, the air outlet temperature sensor detects the current air outlet temperature and executes the next step 8; if not, execute step 9;

[0029] Step 8: Determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T5. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is repeated;

[0030] Step nine: determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T6. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is looped.

[0031] Based on the experience of drying data of a small amount of clothes, as a preferred embodiment, the preset stable inlet air temperature T1 has a value range of 100°C ≤ T1 ≤ 115°C, and correspondingly, the preset drying stop temperature T4 has a value range of 70°C ≤ T4 ≤ 100°C. When the clothes are dried at the first gear, due to their small mass, they can be fully stretched in the drum, and the surface of the clothes can be fully exposed to the hot air flow. When the inlet air temperature reaches T1 and the outlet air temperature reaches T4, the clothes are dried.

[0032] Preferably, the preset stable inlet temperature T2 has a value range of 110°C≤T2≤125°C, and correspondingly, the preset drying stop temperature T5 has a value range of 80°C≤T5≤110°C. When the weight of the clothes is at the second gear, the contact area between the clothes and the hot air flow increases, and the heat utilization rate increases. When the inlet temperature is T1, the outlet temperature must be less than T4. At this time, the surface clothes have been dried. Since the clothes are entangled and piled up in the drum, they cannot be fully stretched out. Some clothes are wrapped inside and the inside is still not dry. At this time, part of the hot air flow is used to heat up the surface of the clothes, and the other part is used to dry the wet clothes wrapped inside. Due to the increase in thermal resistance, the difficulty of drying the internal clothes is much greater than that of the surface clothes, and the heat utilization rate of the air flow is reduced. Therefore, the inlet temperature and the outlet temperature will continue to increase. When the inlet temperature reaches T2 and the outlet temperature reaches T5, the clothes are dried.

[0033] Preferably, the preset stable inlet air temperature T3 is in the range of 120°C≤T3≤140°C, and correspondingly, the preset drying stop temperature T6 is in the range of 90°C≤T6≤120°C. When the weight of the clothes is at the third gear, the accumulation and entanglement are further aggravated, and the difficulty of drying the clothes wrapped inside is further increased. Therefore, the inlet air temperature and the outlet air temperature continue to increase until the inlet air temperature reaches T3, and the clothes are dried when the outlet air temperature reaches T6.

[0034] Taking into account the impact of changes in ambient temperature on the detection results, in order to reduce measurement errors and improve detection accuracy, it is preferred that the preset stable air inlet temperature is set to Ti, the preset drying stop temperature is set to To, and the ambient temperature correction coefficient is set to m according to the corresponding changes in ambient temperature. Then, the preset stable air inlet temperature during actual operation is m×Ti, and the preset drying stop temperature during actual operation is m×To.

[0035] In order to further improve the measurement accuracy, as a preference, the ambient temperature correction coefficient can be subdivided according to different ambient temperatures, preferably into the following four levels, namely:

[0036] When the ambient temperature is between 5 and 15°C, the ambient temperature correction coefficient is m1, and the value range of m1 is 0.85 to 0.95;

[0037] When the ambient temperature is between 15 and 25°C, the ambient temperature correction coefficient is m2, and the value range of m2 is 0.95 to 0.1;

[0038] When the ambient temperature is between 25 and 35°C, the ambient temperature correction coefficient is m3, and the value range of m3 is 1 to 1.1;

[0039] When the ambient temperature is between 35 and 45°C, the ambient temperature correction coefficient is m4, and the value range of m4 is 1.05 to 1.15.

[0040] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: a washer-dryer, comprising an air inlet, an air outlet and a drying air duct connecting the air inlet and the air outlet, characterized in that: the washer-dryer adopts the drying control method described in any one of claims 1 to 8 to implement the drying program.

[0041] In order to improve the accuracy of detection and facilitate measurement, preferably, the air inlet is provided with an inlet temperature sensor for detecting the inlet air temperature, and the air outlet is provided with an outlet temperature sensor for detecting the outlet air temperature.

[0042] Compared with the prior art, the advantages of the present invention are: first determining the amount of clothing by a stable inlet air temperature, and matching different outlet air temperatures to determine the drying point according to the amount of clothing, thereby avoiding the situation in which small-mass clothing is over-dried and large-mass clothing is not dried due to the same temperature drying point. The control method is simple and easy to implement, and there is no need to stop heating or cool down the entire process, thus avoiding waste of electric energy and extended drying time. The clothing amount judgment of the present application scheme is different from the traditional wet clothes weighing method. During the heating process, by matching the corresponding amount of clothing with a stable inlet air temperature, a more accurate measurement result can be obtained, thus avoiding the problem of large measurement errors caused by wet clothes weighing. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is an overall control flow chart of the drying control method according to an embodiment of the present invention.

[0044] Figure 2 This is a control flow chart of a specific embodiment of the drying control method of an embodiment of the present invention. DETAILED DESCRIPTION

[0045] The present invention is further described in detail below with reference to the accompanying drawings.

[0046] This embodiment discloses a washer-dryer and a drying control method for the washer-dryer. The washer-dryer adopts the structure of the prior art, including an inner drum, a lint collection box, a condensing device, an exhaust duct, a fan, a heating pipe, an air inlet, an air outlet, and a drying duct connecting the air inlet and the air outlet. The duct structure of the washer-dryer is implemented using the prior art, which will not be described in detail again. In order to facilitate the acquisition of the detection results and improve the accuracy of the detection, the air inlet is provided with an inlet temperature sensor for detecting the inlet temperature, and the air outlet is provided with an outlet temperature sensor for detecting the outlet temperature.

[0047] like Figure 1 As shown, the washer-dryer of this embodiment adopts the following control method to realize the washing and drying operation, which is specifically as follows:

[0048] Step 1: pre-dividing the corresponding drying working gears according to the amount of clothes, each drying working gear corresponds to a preset stable air inlet temperature and a preset drying stop temperature;

[0049] Step 2: Start the program and initialize the settings;

[0050] Step 3: The inlet air temperature sensor detects the current inlet air temperature;

[0051] Step 4: Determine whether the current inlet air temperature reaches the stable inlet air temperature. If yes, proceed to the next step 5; if no, return to the previous step 3;

[0052] Step 5: judging the amount of clothes according to the currently detected stable air inlet temperature, and determining the corresponding drying working gear according to the amount of clothes;

[0053] Step 6: The air outlet temperature sensor detects the current air outlet temperature;

[0054] Step 7: Determine whether the current air outlet temperature reaches the preset drying stop temperature corresponding to the current drying working gear. If yes, proceed to the next step 8; if no, return to step 6;

[0055] Step 8: Stop the drying process and the process ends.

[0056] Taking into account the influence of ambient temperature, in order to improve detection accuracy, the preset stable air inlet temperature is set to Ti, the preset drying stop temperature is set to To, and the ambient temperature correction coefficient is set to m according to the corresponding changes in ambient temperature. Then the preset stable air inlet temperature during actual operation is m×Ti, and the preset drying stop temperature during actual operation is m×To.

[0057] Specifically, according to the actual working environment, the ambient temperature correction coefficient can be preferably divided into the following four levels:

[0058] When the ambient temperature is between 5 and 15°C, the ambient temperature correction coefficient is m1, and the value range of m1 is 0.85 to 0.95;

[0059] When the ambient temperature is between 15 and 25°C, the ambient temperature correction coefficient is m2, and the value range of m2 is 0.95 to 0.1;

[0060] When the ambient temperature is between 25 and 35°C, the ambient temperature correction coefficient is m3, and the value range of m3 is 1 to 1.1;

[0061] When the ambient temperature is between 35 and 45°C, the ambient temperature correction coefficient is m4, and the value range of m4 is 1.05 to 1.15.

[0062] Therefore, during actual operation, according to the current ambient temperature, the preset stable air inlet temperature Ti and the preset drying stop temperature To are not completely fixed values, and both need to be multiplied by an ambient temperature correction coefficient to achieve correction. Then the actual measured values ​​are compared with the corrected preset stable air inlet temperature Ti and the preset drying stop temperature To, respectively, thereby improving the accuracy of the detection results.

[0063] Considering that the drying working gear can be divided into multiple gears according to actual usage, the more gears there are, the more refined management of the amount of clothes can be achieved, and the best drying effect can be obtained; as a preferred embodiment, the drying working gear is divided into three gears according to user experience, which can basically adapt to the current laundry habits of various users. The three gears are:

[0064] ①. The amount of clothes corresponding to the first drying working gear is a small amount of clothes, wherein the preset stable air inlet temperature corresponding to the first drying working gear is set to T1, and the preset drying stop temperature corresponding to the first drying working gear is T4;

[0065] ② The amount of clothes corresponding to the second drying working gear is medium clothes, wherein the preset stable air inlet temperature corresponding to the second drying working gear is set to T2, and the preset drying stop temperature corresponding to the first drying working gear is T5;

[0066] ③. The amount of clothes corresponding to the third drying working gear is a large amount of clothes. The preset stable air inlet temperature corresponding to the third drying working gear is set to T3, and the preset drying stop temperature corresponding to the first drying working gear is T6.

[0067] According to the working principle of the washer-dryer or dryer when drying, when drying starts, the inlet air temperature begins to rise. When the water in the clothes is almost evaporated, the inlet air temperature will reach a stable value. The stable inlet air temperature corresponding to different clothing masses is different. Therefore, the amount of clothing can be judged according to the stable inlet air temperature, and then matched with the outlet air temperature when drying the corresponding amount of clothing. By detecting the outlet air temperature to control the drying program to stop, it can be ensured that different drying program controls can be implemented for different amounts of clothing to prevent the problem of over-drying of a small amount of clothing and under-drying of a large amount of clothing.

[0068] In this embodiment, the clothes are divided into grades according to different qualities. The first grade has clothes with less quality, the second grade has clothes with moderate quality, and the third grade has clothes with more quality.

[0069] When drying clothes at the first gear, due to their small mass, they can be fully stretched out in the drum, and the surface of the clothes can be fully exposed to the hot air flow. When the stable air inlet temperature reaches T1, the value range is 100-115°C, and the drying stop temperature T4 is in the range of 70-100°C, the clothes are dried;

[0070] When the clothes are dried at the second gear, the clothes are of medium quality. As the contact area between the clothes and the hot air flow increases, the heat utilization rate increases. When the stable inlet air temperature is T1, the outlet air temperature must be less than T4. At this time, the clothes on the surface have been dried. As the clothes are entangled and piled up in the drum and cannot be completely stretched out, some clothes are wrapped inside and the inside is still not dry. At this time, part of the hot air flow is used to heat up the surface of the clothes, and the other part is used to dry the wet clothes wrapped inside. As the thermal resistance increases, it is much more difficult to dry the clothes inside than the clothes on the surface, and the heat utilization rate of the air flow decreases. Therefore, the inlet air temperature and the outlet air temperature will continue to increase. When the stable inlet air temperature reaches T2, with a value range of 110-125°C, and the outlet air temperature reaches T5, with a value range of 80-110°C, the clothes are dried.

[0071] When drying clothes at the third gear, the amount of clothes is large, and the accumulation and entanglement are further aggravated, making it more difficult to dry the clothes wrapped inside. Therefore, the inlet air temperature and the outlet air temperature continue to rise until the stable inlet air temperature reaches T3, with a value range of 120 to 140°C, and the outlet air temperature reaches T6, with a value range of 90 to 120°C, and the clothes are dried.

[0072] So, if Figure 2 As shown, in this embodiment, in combination with the above three drying working gears, the drying control method is implemented by the following steps:

[0073] Step 1, pre-dividing the three drying working gears into small, medium and large amounts of clothes;

[0074] Step 2: Start the program and initialize the settings;

[0075] Step 3: The inlet air temperature sensor detects the current inlet air temperature and determines whether the current inlet air temperature reaches the stable inlet air temperature. If yes, execute the next step 4; if no, loop this step;

[0076] Step 4: determine whether the currently detected stable air inlet temperature Tin is greater than or equal to the preset stable air inlet temperature T1. If yes, proceed to the next step 5; if no, return to step 3;

[0077] Step 5: determine whether the currently detected stable air inlet temperature Tin is less than the preset stable air inlet temperature T2. If so, the air outlet temperature sensor detects the current air outlet temperature and executes the next step 6; if not, execute step 7;

[0078] Step 6: Determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T4. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is repeated;

[0079] Step 7: determine whether the currently detected stable air inlet temperature Tin is less than the preset stable air inlet temperature T3. If so, the air outlet temperature sensor detects the current air outlet temperature and executes the next step 8; if not, execute step 9;

[0080] Step 8: Determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T5. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is repeated;

[0081] Step nine: determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T6. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is looped.

[0082] The above-mentioned drying control method adopts a multi-level dryness judgment method, combined with the heat and mass transfer mechanism of the clothing drying process, and pre-sets the dryness judgment conditions corresponding to different amounts of clothing. During the drying control process, there is no need to stop heating or wait for cooling. Only the stable air inlet temperature and the corresponding air outlet temperature need to be tested to control the drying program. This can effectively solve the problem of small-mass clothing being over-drying and large-mass clothing not being dry. The control method is simple, easy to implement, and highly practical.

Claims

1. A drying control method, characterized in that: The drying control method comprises the following steps: Step 1: pre-dividing the corresponding drying working gears according to the amount of clothes, each drying working gear corresponds to a preset stable air inlet temperature and a preset drying stop temperature; Step 2: Start the program and initialize the settings; Step 3: The inlet air temperature sensor detects the current inlet air temperature; Step 4: Determine whether the current inlet air temperature reaches the stable inlet air temperature. If yes, proceed to the next step 5; if no, return to the previous step 3; Step 5: judging the amount of clothes according to the currently detected stable air inlet temperature, and determining the corresponding drying working gear according to the amount of clothes; Step 6: The air outlet temperature sensor detects the current air outlet temperature; Step 7: Determine whether the current air outlet temperature reaches the preset drying stop temperature corresponding to the current drying working gear. If yes, proceed to the next step 8; if no, return to step 6; Step 8: Stop the drying process and the process ends.

2. The drying control method according to claim 1, characterized in that: The drying working gear in step 1 is divided into three gears, namely: ①. The amount of clothes corresponding to the first drying working gear is a small amount of clothes, wherein the preset stable air inlet temperature corresponding to the first drying working gear is set to T1, and the preset drying stop temperature corresponding to the first drying working gear is T4; ② The amount of clothes corresponding to the second drying working gear is medium clothes, wherein the preset stable air inlet temperature corresponding to the second drying working gear is set to T2, and the preset drying stop temperature corresponding to the first drying working gear is T5; ③. The amount of clothes corresponding to the third drying working gear is a large amount of clothes. The preset stable air inlet temperature corresponding to the third drying working gear is set to T3, and the preset drying stop temperature corresponding to the first drying working gear is T6.

3. The drying control method according to claim 2, characterized in that: The drying control method comprises the following steps: Step 1, pre-dividing the three drying working gears into small, medium and large amounts of clothes; Step 2: Start the program and initialize the settings; Step 3: The inlet air temperature sensor detects the current inlet air temperature and determines whether the current inlet air temperature reaches the stable inlet air temperature. If yes, execute the next step 4; if no, loop this step; Step 4: determine whether the currently detected stable air inlet temperature Tin is greater than or equal to the preset stable air inlet temperature T1. If yes, proceed to the next step 5; if no, return to step 3; Step 5: determine whether the currently detected stable air inlet temperature Tin is less than the preset stable air inlet temperature T2. If so, the air outlet temperature sensor detects the current air outlet temperature and executes the next step 6; if not, execute step 7; Step 6: Determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T4. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is repeated; Step 7: determine whether the currently detected stable air inlet temperature Tin is less than the preset stable air inlet temperature T3. If so, the air outlet temperature sensor detects the current air outlet temperature and executes the next step 8; If not, proceed to step nine; Step 8: Determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T5. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is repeated; Step nine: determine whether the current air outlet temperature Tout is greater than or equal to the preset drying stop temperature T6. If so, stop drying and the program ends; if not, the air outlet temperature sensor continues to detect the current air outlet temperature and this step is looped.

4. The drying control method according to claim 2, characterized in that: The preset stable air inlet temperature T1 has a value range of 100°C≤T1≤115°C, and correspondingly, the preset drying stop temperature T4 has a value range of 70°C≤T4≤100°C.

5. The drying control method according to claim 2, characterized in that: The preset stable air inlet temperature T2 has a value range of 110°C≤T2≤125°C, and correspondingly, the preset drying stop temperature T5 has a value range of 80°C≤T5≤110°C.

6. The drying control method according to claim 2, characterized in that: The preset stable air inlet temperature T3 has a value range of 120°C≤T3≤140°C, and correspondingly, the preset drying stop temperature T6 has a value range of 90°C≤T6≤120°C.

7. The drying control method according to claim 1, characterized in that: The preset stable air inlet temperature is set to Ti, the preset drying stop temperature is set to To, and changes accordingly according to the ambient temperature. The ambient temperature correction coefficient is set to m, then the preset stable air inlet temperature during actual operation is m×Ti, and the preset drying stop temperature during actual operation is m×To.

8. The drying control method according to claim 7, characterized in that: The ambient temperature correction coefficient is divided into the following four levels according to different ambient temperatures: When the ambient temperature is between 5 and 15°C, the ambient temperature correction coefficient is m1, and the value range of m1 is 0.85 to 0.95; When the ambient temperature is between 15 and 25°C, the ambient temperature correction coefficient is m2, and the value range of m2 is 0.95 to 0.1; When the ambient temperature is between 25 and 35°C, the ambient temperature correction coefficient is m3, and the value range of m3 is 1 to 1.1; When the ambient temperature is between 35 and 45°C, the ambient temperature correction coefficient is m4, and the value range of m4 is 1.05 to 1.

15.

9. A washer-dryer, comprising an air inlet, an air outlet, and a drying air duct connecting the air inlet and the air outlet, characterized in that: The washer-dryer adopts the drying control method described in any one of claims 1 to 8 to implement the drying process.

10. The drying control method according to claim 9, characterized in that: The air inlet is provided with an air inlet temperature sensor for detecting the air inlet temperature, and the air outlet is provided with an air outlet temperature sensor for detecting the air outlet temperature.

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