Clothes dryer and control method thereof

Abstract

The embodiment of the application provides a clothes dryer and a control method thereof, relates to the technical field of clothes dryers, and is used for reasonably judging the drying degree of clothes. The clothes dryer comprises a drying drum and a controller. The drying drum is provided with a plurality of lifting ribs, and each lifting rib is provided with a humidity sensor. The controller is used for executing a drying program and a shaking program. In response to the end of the drying program, the controller is configured to execute the shaking program, acquire a humidity value set, calculate a humidity value difference set according to humidity values in the humidity value set, and continue to execute the shaking program if one of the humidity value differences in the humidity value difference set is greater than a difference threshold. The clothes dryer provided by the embodiment of the application is provided with the humidity sensor on the lifting rib, can be fully contacted with the clothes during operation, and can more accurately measure the humidity value. Meanwhile, the shaking program is added after the drying program, the clothes wound into a group are shaken apart, and the accuracy of judging the drying degree of the clothes can be well improved.

Description

Technical Field

[0001] This application relates to the field of automatic control technology for clothes dryers, and more particularly to a clothes dryer and its control method. Background Technology

[0002] Currently, the main drying methods for clothes dryers are timed drying and automatic drying. Timed drying allows users to select a drying program and preset a drying time based on the load. To ensure drying results, manufacturers often preset a drying time longer than the clothes need to be dried, which can lead to over-drying or scalding of some clothes and waste energy. Automatic drying, on the other hand, usually uses a humidity sensor inside the dryer to determine when the clothes are dry. When the humidity level reaches a predetermined value, the dryer considers the clothes to be dry.

[0003] However, in actual operation, if users dry a large load or a mix of clothes, the different materials, absorbency, and moisture release characteristics of the clothes, coupled with the relatively high-speed rotation of the drying drum causing the clothes inside to tangle, prevent the hot, dry air from penetrating completely and the moisture from being fully released. This results in unsatisfactory drying performance based on the humidity sensor, and the program may incorrectly determine that the clothes are dry and stop working if some clothes are not completely dry.

[0004] Therefore, how to reasonably determine the dryness level of clothes in a dryer has become an urgent problem to be solved. Summary of the Invention

[0005] This application provides a clothes dryer and its control method, which is used to reasonably determine the degree of dryness of clothes and avoid the clothes dryer from over-drying or under-drying the clothes, thus affecting the user experience.

[0006] The first aspect of this application provides a clothes dryer, comprising:

[0007] The clothes dryer has multiple lifting ribs, and each lifting rib has a humidity sensor.

[0008] The controller is used to execute the drying and shaking programs;

[0009] In response to the end of the drying process, the controller is configured as follows:

[0010] Execute the shaking procedure, which includes controlling the operation of the dryer drum;

[0011] Obtain a set of humidity values, which includes the humidity values ​​of at least two lifting ribs;

[0012] Based on the humidity values ​​in the humidity value set, calculate the humidity value difference set. The humidity value difference set includes at least one humidity value difference, and the humidity value difference is the absolute value of the difference between two humidity values.

[0013] If any humidity value difference in the set of humidity value differences is greater than the difference threshold, the shaking procedure will continue.

[0014] In conjunction with the first implementation of the first aspect, the controller is also configured as follows:

[0015] If all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold, the execution count is the number of times that all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold.

[0016] If the preset number of executions is reached, the shaking process will end.

[0017] In conjunction with the second implementation method of the first aspect, in response to the end of the shaking procedure, the controller is also used to execute the dryness judgment procedure, which includes: controlling the operation of the dryer.

[0018] Obtain a set of humidity values;

[0019] If all humidity values ​​in the set of humidity values ​​are less than or equal to the humidity threshold, the dryer will be turned off.

[0020] If any one of the humidity values ​​in the set of humidity values ​​is greater than the humidity threshold, the dryness determination procedure will continue to be executed.

[0021] Combining the third implementation method of the first aspect, the speed of the drying drum in the drying program is greater than the speed of the drying drum in the shaking program.

[0022] In conjunction with the fourth implementation method of the first aspect, the temperature of the drying drum in the drying process is greater than the temperature of the drying drum in the shaking process.

[0023] Combining the fifth implementation method of the first aspect, the temperature of the drying drum in the drying process, the temperature of the drying drum in the shaking process, and the temperature of the drying drum in the judging process decrease in sequence.

[0024] Combining the sixth implementation method of the first aspect, if there are multiple humidity sensors on each lifting rib, the humidity value is the average value of the humidity values ​​collected by the multiple humidity sensors on each lifting rib.

[0025] The dryer provided in this application embodiment has a humidity sensor installed on each lifting rib of the drying drum. During operation, the humidity sensor can fully contact the clothes, resulting in more accurate humidity values. Simultaneously, a shaking program is added after the drying cycle to disperse the clothes after high-speed rotation, preventing them from tangling. This allows the dryer to more accurately determine the dryness of the clothes based on the humidity values. This application embodiment first obtains a set of humidity values, then calculates a set of humidity value differences. If any humidity value difference in the set reaches a difference threshold, it indicates that the error between the humidity values ​​of all lifting ribs is unreasonable, meaning the clothes are not evenly distributed inside the drying drum, i.e., the clothes have not been dispersed. Therefore, the dryer continues to execute the shaking program. The dryer provided in this application embodiment, with its humidity sensor fully contacting the clothes for more accurate humidity measurements, and the addition of a shaking program after the drying cycle to disperse tangled clothes, significantly improves the accuracy of determining the dryness of the clothes.

[0026] A second aspect of this application provides a control method for a clothes dryer. The clothes dryer has multiple lifting ribs on its drying drum, and each lifting rib has a humidity sensor. The method includes:

[0027] In response to the end of the drying process, a shaking and scattering process is executed, which includes:

[0028] Control the operation of the clothes dryer;

[0029] Obtain a set of humidity values, which includes the humidity values ​​of at least two lifting ribs;

[0030] Based on the humidity values ​​in the humidity value set, calculate the humidity value difference set. The humidity value difference set includes at least one humidity value difference, and the humidity value difference is the absolute value of the difference between two humidity values.

[0031] If any humidity value difference in the set of humidity value differences is greater than the difference threshold, the shaking procedure will continue.

[0032] In conjunction with the first implementation method of the second aspect, the control method also includes:

[0033] If all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold, the execution count is the number of times that all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold;

[0034] If the preset number of executions is reached, the shaking process will end.

[0035] In conjunction with the second implementation method of the second aspect, the control method also includes:

[0036] In response to the end of the shaking procedure, the dryness determination procedure is executed, which includes: controlling the operation of the dryer.

[0037] Obtain a set of humidity values;

[0038] If all humidity values ​​in the set of humidity values ​​are less than or equal to the humidity threshold, the dryer will be turned off.

[0039] If any humidity value in the set of humidity values ​​is greater than the humidity threshold, the humidity judgment procedure will continue to be executed.

[0040] The beneficial effects described in the second aspect can be referred to the analysis of the beneficial effects in the first aspect, and will not be repeated here. Attached Figure Description

[0041] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of the present invention and do not constitute a limitation on the technical solutions of the present invention.

[0042] Figure 1 This is a schematic diagram of the structure of a clothes dryer provided in an embodiment of this application;

[0043] Figure 2 This application provides a schematic diagram of the control flow of a clothes dryer controller according to an embodiment of the present application.

[0044] Figure 3 A schematic diagram of the control flow of a dryer controller provided for an embodiment of this application;

[0045] Figure 4 This application provides a schematic diagram of the control flow of a clothes dryer controller according to an embodiment of the present application.

[0046] Figure 5 This application provides a schematic diagram of the control flow of a clothes dryer controller according to an embodiment of the present application.

[0047] Figure 6 A flowchart illustrating a washing machine control method provided in this application embodiment;

[0048] Figure 7 A flowchart illustrating a washing machine control method provided in this application embodiment;

[0049] Figure 8 This is a flowchart of a washing machine control method provided in an embodiment of this application. Detailed Implementation

[0050] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0052] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0053] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0054] Figure 1 A schematic diagram of a clothes dryer is shown. Figure 1 As shown, the dryer may include a housing 11, a drying drum 12 disposed within the housing 11, and an air duct (not shown) communicating with the drying drum 12. A heating element and a condenser (not shown) are disposed within the air duct. Air within the air duct is heated by the heating element to become dry, hot gas. This dry, hot gas enters the drying drum 12, evaporating the moisture within the drum to form humid, hot gas. This humid, hot gas is either discharged to the outside or continues into the air duct where it encounters the condenser. The condenser condenses the humid, hot air to obtain moisture, thus draining the drying drum 12. Air from the air duct re-enters the drying drum 12 to drain the water until the dryer stops operating.

[0055] Optionally, the dryer may also include components such as a water pump, centrifugal impeller, and filter, which will not be described in detail here.

[0056] Those skilled in the art will understand that Figure 1 The hardware structure shown does not constitute a limitation on the dryer. The dryer may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0057] Currently, the main drying methods for clothes dryers are timed drying and automatic drying. Timed drying allows users to select a drying program and preset a drying time based on the load. To ensure effective drying, the preset drying time is often longer than the actual drying time required for the clothes. This can lead to over-drying or scalding of some garments and waste of energy. Automatic drying, on the other hand, usually uses a humidity sensor inside the dryer to determine when the clothes are dry. When the humidity level reaches a predetermined value, the dryer considers the clothes to be dry.

[0058] However, in actual operation, if users dry a large load or a mix of clothes, the different materials, absorbency, and moisture release characteristics of the clothes, coupled with the relatively high-speed rotation of the drying drum causing the clothes inside to clump together, prevent the hot, dry air from penetrating completely and the moisture from being fully released. This results in unsatisfactory drying performance based on the humidity sensor, and the program may incorrectly determine that the clothes are dry when some clothes are not fully dried, causing the dryer to stop working.

[0059] The clothes dryer provided in this embodiment has multiple lifting ribs on the drying drum 12 for rotating the clothes; each lifting rib has a humidity sensor for detecting the humidity of the clothes inside the drying drum.

[0060] The dryer also includes a controller for executing the drying and tumbling programs; the tumbling program is executed in response to the end of the drying program.

[0061] The shaking and loosening process includes: controlling the dryer drum to operate at a first preset speed and a first preset temperature to shake and loosen clothes that have become tangled due to high-speed rotation during the drying process.

[0062] In this embodiment, the first preset humidity and the first preset speed are preset by the system. In actual application, they can be set according to requirements. This embodiment does not impose any restrictions on them.

[0063] Combination Figure 2 As shown, the controller is configured to perform the following steps:

[0064] S201. Obtain a set of humidity values, which includes the humidity values ​​of at least two lifting ribs.

[0065] A set of humidity values ​​is obtained based on the humidity values ​​measured by the humidity sensors on each lifting rib.

[0066] S202. Calculate the set of humidity value differences based on the humidity values ​​in the humidity value set.

[0067] The absolute values ​​of all humidity values ​​in the humidity value set are calculated by performing a difference operation on each pair of humidity values ​​and taking the absolute value. This results in a humidity value difference set, which includes at least one humidity value difference. The humidity value difference is the absolute value of the difference between two humidity values ​​in the humidity value set.

[0068] S203. If one of the humidity value differences in the set of humidity value differences is greater than the difference threshold, then continue to execute the shaking procedure.

[0069] In this embodiment, the difference threshold is preset by the system. In actual application, it can be set according to the requirements. This embodiment does not impose any restrictions on it.

[0070] For example, suppose there are three lifting ribs on the clothes dryer, and the humidity values ​​of the three lifting ribs are a, b, and c, respectively, that is, the set of humidity values ​​is {a, b, c}. By performing a difference operation on each pair of humidity values ​​in the set and taking the absolute value, we obtain three humidity value differences: |ab|, |bc|, and |ca|. The set of humidity value differences is then {|ab|, |bc|, |ca|}. If |ab| in the set of humidity value differences is greater than the difference threshold, it means that the error between humidity values ​​a and b is not within a reasonable range. This indicates that the clothes in the dryer are not evenly distributed, causing the error between the measured humidity values ​​to exceed the difference threshold, and the shaking procedure needs to be executed again.

[0071] The dryer provided in this application embodiment has a humidity sensor installed on each lifting rib of the drying drum. During operation, the humidity sensor can fully contact the clothes, resulting in more accurate humidity values. Simultaneously, a shaking program is added after the drying cycle to disperse the clothes after high-speed rotation, preventing them from tangling. This allows the dryer to more accurately determine the dryness of the clothes based on the humidity values. This application embodiment first obtains a set of humidity values, then calculates a set of humidity value differences. If any humidity value difference in the set reaches a difference threshold, it indicates that the error between the humidity values ​​of all lifting ribs is unreasonable, meaning the clothes are not evenly distributed inside the drying drum, i.e., the clothes have not been dispersed. Therefore, the dryer continues to execute the shaking program. The dryer provided in this application embodiment, with its humidity sensor fully contacting the clothes for more accurate humidity measurements, and the addition of a shaking program after the drying cycle to disperse tangled clothes, significantly improves the accuracy of determining the dryness of the clothes.

[0072] In some embodiments, if all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold, it means that the error between all humidity values ​​in the set of humidity values ​​is less than the difference threshold, that is, the humidity of the clothes contacted by each lifting rib in the drying drum is approximately the same. However, since the clothes may have become tangled in the drying process, and the external humidity of tangled clothes is similar, the humidity value measured after only one judgment may only be the external humidity of the tangled clothes, and cannot guarantee that the clothes have been shaken apart, that is, it cannot guarantee that the shaking process has played its role in shaking the clothes apart.

[0073] As a feasible way to achieve this, such as Figure 3 As shown, the controller is also configured to perform the following steps:

[0074] S301. If all humidity value differences in the humidity value difference set are less than or equal to the difference threshold, count the number of executions.

[0075] The execution count is the number of times that all humidity value differences in the humidity value difference set are less than or equal to the difference threshold. Specifically, the humidity sensor collects humidity values ​​each time, forming a humidity value set. If all humidity value differences in the humidity value difference set obtained from this set are less than or equal to the difference threshold, the execution count is incremented by one. It should be understood that the initial execution count is 0.

[0076] For example, if the humidity sensor collects humidity values ​​for the first time and obtains a set of humidity values, and all humidity value differences in the resulting set of humidity value differences are less than or equal to the difference threshold, then the execution count is 1. If the humidity sensor collects humidity values ​​for the second time and obtains a set of humidity values, and all humidity value differences in the resulting set of humidity value differences are less than or equal to the difference threshold, then the execution count is 1+1, which is 2. If the humidity sensor collects humidity values ​​for the third time and obtains a set of humidity values, and any humidity value difference in the resulting set of humidity value differences is greater than the difference threshold, then the execution count is still 2.

[0077] S302. Determine whether the number of executions has reached the preset number.

[0078] If yes, the shaking procedure ends; otherwise, the shaking procedure continues.

[0079] In this embodiment, the preset number of times is pre-set by the system. In actual application, it can be set according to the needs. This embodiment does not impose any restrictions on this.

[0080] If the preset number of executions is reached, it means that the number of times the humidity difference obtained from the humidity sensor is less than or equal to the difference threshold has reached the preset number. In other words, the number of times similar humidity values ​​for each lifting rib have occurred has reached the preset number, indicating that the clothes have been completely shaken apart. However, some extreme cases exist, where the preset number of times similar humidity values ​​for each lifting rib have occurred may still exist, but the clothes are not yet shaken apart. In this case, the clothes are tangled and cannot be shaken apart by the shaking program, so continuing the shaking program is meaningless. The dryer needs to stop running so the user can manually shake the clothes apart. Therefore, the shaking program ends after the preset number of executions is reached.

[0081] If the number of times the humidity difference is less than or equal to the first threshold reaches the preset number, it means that the error of the humidity value measured by the humidity sensor on each lifting rib is within a reasonable range. That is, the clothes have been completely shaken out and evenly distributed, and the shaking program needs to be stopped to avoid over-drying the clothes.

[0082] In some embodiments, after the shaking process, the clothes have been completely shaken apart and evenly distributed in the drying drum. However, in a conventional drying process, the clothes may become tangled, and the inside of tangled clothes cannot be completely dried by the drying process. Therefore, after the shaking process is completed and the clothes are evenly distributed in the drying drum, a judgment drying process is required to determine whether the clothes are completely dry.

[0083] As one feasible implementation, the controller is also used to execute a drying procedure in response to the end of the shaking procedure. The drying procedure includes controlling the dryer to operate at a second preset speed and a second preset humidity.

[0084] In this embodiment, the second preset humidity and the second preset speed are preset by the system. In actual application, they can be set according to requirements. This embodiment does not impose any restrictions on them.

[0085] Combination Figure 4 As shown, the controller is also configured to perform the following steps:

[0086] S401, Obtain the set of humidity values.

[0087] S402. Determine whether all humidity values ​​in the humidity value set are less than or equal to the humidity threshold.

[0088] If yes, then control the dryer to turn off; if not, continue executing the dryer judgment procedure.

[0089] In this embodiment, the humidity threshold is preset by the system. In actual application, it can be set according to needs. This embodiment does not impose any restrictions on this.

[0090] All humidity values ​​are less than or equal to the humidity threshold, meaning that the humidity value measured by each lifting rib does not exceed the humidity threshold. This indicates that the clothes have finished drying and the dryer does not need to continue running. Therefore, the dryer should be turned off to avoid over-drying the clothes.

[0091] Since the above shaking process has already shaken the clothes evenly, if there are still humidity values ​​in the measured humidity value set that are greater than the humidity threshold, it means that the clothes have not been completely dried. The dryer needs to continue running until the clothes are completely dry.

[0092] Adding a drying check procedure after the shaking process allows for a more accurate assessment of the dryness of the clothes by comparing all humidity values ​​in the humidity value set with the humidity threshold. This avoids the problem of clothes not being fully dried inside due to tangling during the drying process, and provides a more reasonable way to determine whether the clothes are completely dry.

[0093] In some embodiments, the drying process of the dryer typically involves blowing hot, dry gas (usually, the temperature of the hot gas is positively correlated with the set temperature of the dryer's program) into the air inlet at the rear of the drying drum. Through the continuous tumbling of the clothes in the drying drum, the hot gas is evenly distributed to all parts of the clothes, carrying away moisture and transforming the hot gas into humid gas. The humid gas is then discharged from the air outlet of the drying drum, thus drying the clothes.

[0094] Therefore, the preset temperature and speed of the drying program are generally high to facilitate quick drying of clothes. If heating is suddenly stopped after the drying program ends, the rapid cooling of some clothes may cause problems such as tearing of prints.

[0095] As a feasible implementation method, during the shaking process, the first preset temperature is lower than the preset temperature of the drying process.

[0096] As a feasible implementation method, the initial preset speed of the shaking and scattering process is lower than the preset speed of the drying process during operation.

[0097] The initial preset temperature of the shaking program is lower than that of the drying program. As the washing program progresses, the heating temperature of the clothes is gradually reduced (the heating temperature of the clothes corresponds to the preset temperature, which includes the preset temperature for drying degree and the first preset temperature). This can prevent the problem of print tearing caused by some clothes suddenly stopping heating.

[0098] Meanwhile, the first preset speed of the shaking program is lower than the preset speed of the drying program. Running at a low speed during the shaking process will have a certain wrinkle-removing effect on the clothes, ensuring a better user experience while shaking the clothes.

[0099] In some embodiments, a drying process is required after the shaking process is completed to determine the dryness of the clothing again. Since the clothing is heated using a first preset humidity during the shaking process, the sudden stopping of heating and rapid cooling of some clothing may cause problems such as print tearing.

[0100] As a feasible implementation method, during the operation of the judgment procedure, the second preset humidity is lower than the first preset humidity.

[0101] The second preset temperature of the drying process is lower than the first preset temperature of the shaking process, which further reduces the heating temperature of the clothing (in this implementation, the preset temperature also includes the second preset temperature) to avoid the problem of print tearing caused by some clothing suddenly stopping heating.

[0102] As a feasible approach, the second preset speed of the drying process is lower than the preset speed of the drying process. Running at a low speed will have a certain wrinkle-removing effect on the clothes and can bring users a better user experience.

[0103] As a feasible approach, the temperature of the drying drum is sequentially decreased during the drying process, the shaking process, and the sorting process. This allows the temperature of the clothes inside the drying drum to gradually decrease, preventing issues such as print tearing caused by sudden heating cessation and rapid cooling of some garments.

[0104] In some embodiments, in order to prevent inaccurate results due to the failure of a humidity sensor, multiple humidity sensors may be provided on each lifting rib. This application embodiment does not limit the number of humidity sensors on the lifting rib.

[0105] As a feasible approach, if each lifting rib has multiple humidity sensors, the humidity value of the lifting rib is the average of the humidity values ​​measured by the multiple humidity sensors.

[0106] For example, suppose there are three lifting ribs in the inner drum of a dryer, and each lifting rib has three humidity sensors. The humidity values ​​measured by the humidity sensor on lifting rib 1 are: L11, L12, L13; the humidity values ​​measured by the humidity sensor on lifting rib 2 are: L21, L22, L23; and the humidity values ​​measured by the humidity sensor on lifting rib 3 are: L31, L32, L33. Then the humidity values ​​of the three lifting ribs are L1 = (L11 + L12 + L13) / 3; L2 = (L21 + L22 + L23) / 3; and L3 = (L31 + L32 + L33) / 3.

[0107] By installing multiple humidity sensors on the lifting ribs and taking the average humidity value measured by these sensors as the humidity value of the lifting ribs, the problem of inaccurate judgment caused by the failure of a single sensor can be avoided, and the dryness of clothing can be judged more accurately.

[0108] In some embodiments, combined with Figure 5 As shown, after the drying cycle is complete, the controller uses the following steps to control the operation of the dryer:

[0109] S501. Enter the medium-temperature, low-speed shaking program, obtain the humidity value, obtain the humidity value set, and obtain the humidity value difference set based on the humidity value set.

[0110] S502. Determine whether all humidity value differences in the humidity value difference set are less than or equal to the difference threshold. If yes, proceed to S503; otherwise, return to S501.

[0111] S503, Execution count +1.

[0112] S504. Determine if the preset number of executions has been reached. If yes, proceed to S505; otherwise, return to S501.

[0113] S505. Enter the low temperature and low speed drying process to obtain humidity values ​​and obtain a set of humidity values.

[0114] S506. Determine whether all humidity values ​​in the humidity value set are less than or equal to the humidity threshold. If yes, proceed to S507; otherwise, return to S505.

[0115] S507, Control the dryer to turn off.

[0116] After the drying cycle ends, a shaking cycle is added. A set of humidity values ​​is acquired, and then a set of humidity value differences is calculated. If any humidity value difference in the set reaches a threshold, it indicates that the clothes have not been shaken apart, and the shaking cycle needs to continue. If all humidity value differences are less than the threshold, it means that the measured humidity values ​​are similar. To ensure data accuracy, this embodiment only determines that the clothes have been completely shaken apart after a preset number of times all humidity value differences are less than the threshold. Then, a low-temperature, low-speed drying cycle is entered, acquiring humidity values ​​and obtaining a set of humidity values. If all humidity values ​​in the set are less than the humidity threshold, it means that the clothes are dry enough, and the dryer is turned off. If any humidity value in the set reaches the threshold, it means that the drying process has not met the requirements, and the dryer needs to continue running.

[0117] Meanwhile, the humidity control mode of medium temperature followed by low temperature is used in this process to prevent some clothes from wrinkling or tearing due to rapid cooling caused by sudden heating stoppage. The low-speed shaking process also has a certain wrinkle removal effect on the clothes, which can improve the user experience.

[0118] This application also provides a control method for a clothes dryer, wherein the clothes dryer drum has multiple lifting ribs, and each lifting rib has a humidity sensor, such as... Figure 6 As shown, the method includes the following steps during the shaking process of the dryer:

[0119] S601. Obtain a set of humidity values, which includes the humidity values ​​of at least two lifting ribs.

[0120] A set of humidity values ​​is obtained based on the humidity values ​​measured by the humidity sensors on each lifting rib.

[0121] S602. Calculate the set of humidity value differences based on the humidity values ​​in the humidity value set.

[0122] The absolute values ​​of all humidity values ​​in the humidity value set are calculated by performing a difference operation on each pair of humidity values ​​and taking the absolute value. The humidity value difference set includes at least one humidity value difference, and the humidity value difference is the absolute value of the difference between two humidity values ​​in the humidity value set.

[0123] S603. If one of the humidity value differences in the set of humidity value differences is greater than the difference threshold, then continue to execute the shaking procedure.

[0124] The control method provided in this application adds a shaking program after the drying program ends. By acquiring a set of humidity values, a set of humidity value differences is calculated. If the humidity value difference in the set reaches a threshold, it indicates that the error between the humidity values ​​of all the lifting ribs is unreasonable, and the clothes are not evenly distributed inside the drying drum, meaning the clothes have not been shaken out. Therefore, the dryer continues to execute the shaking program. The control method provided in this application, by adding a shaking program after the drying program, shakes out clothes that can be tangled together, which can greatly improve the accuracy of judging the dryness of the clothes.

[0125] As a feasible implementation method, combined with Figure 7 As shown, during the shaking process of the dryer, the control method also includes the following steps:

[0126] S701. Calculate the number of executions based on the set of humidity value differences.

[0127] S702. If the number of executions reaches the preset number, the shaking program will end.

[0128] If the number of times the humidity difference is less than or equal to the first threshold reaches the preset number, it means that the error of the humidity value measured by the humidity sensor on each lifting rib is within a reasonable range. That is, the clothes have been completely shaken out and evenly distributed, and the shaking program needs to be stopped to avoid over-drying the clothes.

[0129] As a feasible implementation method, combined with Figure 8 As shown, during the drying process of the dryer executing the drying procedure, the control method also includes the following steps:

[0130] S801, Obtain the set of humidity values.

[0131] S802. Determine whether all humidity values ​​in the humidity value set are less than or equal to the humidity threshold.

[0132] If yes, then control the dryer to turn off; if not, continue executing the dryer judgment procedure.

[0133] Since the shaking process has already evenly dispersed the clothes, if any humidity value in the set exceeds the humidity threshold, it means the clothes are not yet completely dry. The dryer needs to continue running until the clothes are completely dry. Adding a dryness assessment process after the shaking process allows for a more accurate determination of the clothes' dryness by comparing all humidity values ​​in the set with the humidity threshold. This avoids the problem of clothes becoming tangled and not fully dried inside during the drying process, and provides a more reasonable assessment of whether the clothes are completely dry.

[0134] As a feasible implementation method, if there are multiple humidity sensors on each lifting rib, the humidity value of the lifting rib is the average value of the humidity values ​​measured by the multiple humidity sensors.

[0135] This application also provides a computer device, which includes a memory and a processor. The memory and the processor are coupled; the memory stores computer program code, which includes computer instructions. When the processor executes the computer instructions, the computer device performs the steps of the method shown in the above-described method embodiments.

[0136] This application also provides a computer-readable storage medium storing computer instructions that, when executed on an electronic device, cause the electronic device to perform each step of the method flow shown in the above method embodiments.

[0137] This application also provides a computer program product, which includes computer instructions that, when executed on an electronic device, cause the electronic device to perform each step of the method flow shown in the above method embodiments.

[0138] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software programs, implementation can be, in whole or in part, in the form of a computer program product. This computer program product includes one or more computer instructions. When these computer instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device including one or more servers, data centers, etc., that can be integrated with the medium. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0139] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A clothes dryer, characterized in that, include: A clothes dryer with multiple lifting ribs, each of which has a humidity sensor. Controller, the controller being used to execute the drying program and the shaking program; In response to the end of the drying process, the controller is configured to execute the shaking process, the shaking process including: Control the operation of the clothes dryer; Obtain a set of humidity values, the set of humidity values ​​including the humidity values ​​of at least two of the lifting ribs; Based on the humidity values ​​in the humidity value set, calculate a humidity value difference set, the humidity value difference set including at least one humidity value difference, the humidity value difference being the absolute value of the difference between two humidity values; If any of the humidity value differences in the set of humidity value differences is greater than the difference threshold, then the shaking procedure continues to be executed; If all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold, the execution count is counted. The execution count is the number of times that all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold. If the number of executions reaches the preset number, the shaking process ends.

2. The clothes dryer according to claim 1, characterized in that, In response to the end of the shaking procedure, the controller is further configured to execute a drying determination procedure, the drying determination procedure including: controlling the operation of the clothes dryer; Obtain the set of humidity values; If all humidity values ​​in the set of humidity values ​​are less than or equal to the humidity threshold, then the dryer is turned off. If any of the humidity values ​​in the set of humidity values ​​is greater than the humidity threshold, then the humidity determination procedure continues to be executed.

3. The clothes dryer according to claim 1, characterized in that, The drying drum speed in the drying process is greater than the drying drum speed in the shaking process.

4. The clothes dryer according to claim 1, characterized in that, The temperature of the drying drum in the drying process is higher than the temperature of the drying drum in the shaking process.

5. The clothes dryer according to claim 2, characterized in that, The temperature of the drying drum decreases sequentially in the drying process, the shaking process, and the drying judgment process.

6. The clothes dryer according to any one of claims 1-2, characterized in that, If each of the lifting ribs has multiple humidity sensors, then the humidity value is the average of the humidity values ​​collected by the multiple humidity sensors on each of the lifting ribs.

7. A control method for a clothes dryer, characterized in that, The clothes dryer has multiple lifting ribs on its drying drum, and each lifting rib has a humidity sensor. The method includes: In response to the end of the drying process, a shaking and scattering process is executed, the shaking and scattering process including: Control the operation of the clothes dryer; Obtain a set of humidity values, the set of humidity values ​​including the humidity values ​​of at least two of the lifting ribs; Based on the humidity values ​​in the humidity value set, calculate a humidity value difference set, the humidity value difference set including at least one humidity value difference, the humidity value difference being the absolute value of the difference between two humidity values; If any of the humidity value differences in the set of humidity value differences is greater than the difference threshold, then the shaking procedure continues to be executed; If all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold, the execution count is counted. The execution count is the number of times that all humidity value differences in the set of humidity value differences are less than or equal to the difference threshold. If the number of executions reaches the preset number, the shaking process ends.

8. The method according to claim 7, characterized in that, The method further includes: In response to the end of the shaking procedure, a drying determination procedure is executed, which includes controlling the operation of the clothes dryer. Obtain the set of humidity values; If all humidity values ​​in the set of humidity values ​​are less than or equal to the humidity threshold, then the dryer is turned off. If any of the humidity values ​​in the set of humidity values ​​is greater than the humidity threshold, then the humidity determination procedure continues to be executed.

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