Method for detecting clogging of filter screen of clothes dryer, detection device, and clothes dryer

Abstract

The present disclosure relates to a detection method and device for filter screen clogging of a clothes dryer and the clothes dryer. The detection method for filter screen clogging of the clothes dryer comprises: obtaining a weighed weight of clothes to be dried in the clothes dryer; obtaining a pre-stored value of a clogging degree of the filter screen corresponding to the weighed weight according to the weighed weight; obtaining an initial detection value of the clogging degree of the filter screen in the clothes dryer; and obtaining a final detection value of the clogging degree of the filter screen according to the initial detection value and the pre-stored value of the clogging degree. The present disclosure avoids the influence of the weight of the clothes to be dried on the detection of the clogging degree of the filter screen, and improves the accuracy and intelligence of the detection process of the clogging degree of the filter screen.

Description

Technical Field

[0001] This disclosure relates to the field of dryer technology, and in particular to a method, device and dryer for detecting filter clogging in dryers. Background Technology

[0002] With the improvement of people's living standards, clothes dryers are becoming increasingly common. Existing clothes dryers, such as heat pump dryers, typically have an air circulation channel. The humid air after heat exchange with clothes often carries some lint. To prevent lint from entering the evaporator and adhering to the evaporator fins, a lint filter is usually installed on the drum or between the drum and the evaporator. The lint filter mainly consists of a filter screen that filters lint from the air. During long-term use of the dryer, if the filter screen is not cleaned promptly after drying, lint will accumulate on it. In severe cases, this will lead to poor airflow inside the dryer, a significant reduction in air volume, increased energy consumption, and decreased drying efficiency.

[0003] In existing technologies, the methods for detecting dryer clogging generally rely on parameters that characterize the degree of clogging to directly assess the clogging level of the dryer filter. This approach fails to consider other factors that may affect the accuracy of the dryer filter clogging detection, resulting in low accuracy and a low level of intelligence in the detection process. Summary of the Invention

[0004] To solve the above-mentioned technical problems, or at least partially solve them, this disclosure provides a method, device, and dryer for detecting filter clogging in dryers. This avoids the impact of excessive weight of clothes on the detection of filter clogging, and improves the accuracy and intelligence of the filter clogging detection process.

[0005] In a first aspect, embodiments of this disclosure provide a method for detecting filter clogging in a clothes dryer, including:

[0006] Obtain the weight of the clothes to be dried in the dryer;

[0007] Based on the weighing weight, obtain the pre-stored value of the filter clogging degree corresponding to the weighing weight;

[0008] Obtain the initial detection value of the degree of filter clogging in the dryer;

[0009] The final detection value of the filter clogging degree is obtained based on the initial detection value and the pre-stored value of the filter clogging degree.

[0010] Optionally, obtaining a pre-stored value for the degree of filter clogging corresponding to the weighed weight includes:

[0011] Obtain the pre-stored correspondence between the weight of the clothes to be dried and the pre-stored value of the filter clogging degree;

[0012] The pre-stored value of the filter clogging degree corresponding to the weighed weight is obtained based on the weighed weight and the pre-stored correspondence.

[0013] Optionally, obtaining the initial detection value of the degree of filter clogging in the dryer includes:

[0014] Obtain the forward drive current and reverse drive current of the drive motor in the dryer;

[0015] The initial detection value is obtained based on the difference between the forward drive current and the reverse drive current.

[0016] Optionally, obtaining the final detection value of the filter clogging degree based on the initial detection value and the pre-stored value of the filter clogging degree includes:

[0017] The initial detection value is compared sequentially with multiple preset values ​​for the filter clogging level; wherein the multiple preset values ​​change sequentially.

[0018] The final detection value is obtained based on the comparison result between the initial detection value and the multiple gear values.

[0019] Optionally, the plurality of gear values ​​change from small to large, and obtaining the final detection value based on the comparison result between the initial detection value and the plurality of gear values ​​includes:

[0020] Obtain a first gear value and a second gear value; wherein, the first gear value is the gear value that is first greater than the initial detection value, and the second gear value is the gear value preceding the first gear value;

[0021] The first gear value or the second gear value is determined as the final detection value based on the difference between the initial detection value and the first gear value, and the difference between the initial detection value and the second gear value.

[0022] Optionally, the plurality of gear values ​​change from large to small, and obtaining the final detection value based on the comparison result between the initial detection value and the plurality of gear values ​​includes:

[0023] Obtain the third gear value and the fourth gear value; wherein, the third gear value is the gear value that is first less than the initial detection value, and the fourth gear value is the gear value preceding the third gear value;

[0024] The third gear value or the fourth gear value is determined as the final detection value based on the difference between the initial detection value and the third gear value, and the difference between the initial detection value and the fourth gear value.

[0025] Optionally, obtaining the final detection value based on the comparison result between the initial detection value and the plurality of gear values ​​includes:

[0026] When the initial detection value is greater than the maximum value of the gear position, the initial detection value is taken as the final detection value.

[0027] Optionally, after obtaining the final detection value of the filter clogging degree based on the initial detection value and the pre-stored value of the filter clogging degree, the method further includes:

[0028] Based on the final detection value, the system will display and / or provide audio prompts to the user regarding the final detection value.

[0029] Secondly, this disclosure also provides a device for detecting dryer filter clogging, comprising:

[0030] The weight acquisition module is used to acquire the weight of the clothes to be dried in the dryer;

[0031] The pre-stored value acquisition module is used to acquire a pre-stored value of the filter clogging degree corresponding to the weighed weight;

[0032] An initial detection value acquisition module is used to acquire an initial detection value of the degree of filter clogging in the dryer;

[0033] The final detection value acquisition module is used to acquire the final detection value of the filter clogging degree based on the initial detection value and the pre-stored value of the filter clogging degree.

[0034] Thirdly, this disclosure also provides a clothes dryer, including: a processor and a memory, wherein the processor executes the steps of the clothes dryer filter clogging detection method as described in the first aspect by calling a program or instruction stored in the memory.

[0035] The method for detecting filter clogging in a dryer disclosed herein includes: obtaining the weight of the clothes to be dried in the dryer; obtaining a pre-stored value for the degree of filter clogging corresponding to the weight; obtaining an initial detection value for the degree of filter clogging in the dryer; and obtaining a final detection value for the degree of filter clogging based on the initial detection value and the pre-stored value. Therefore, this disclosure, by comparing the initial detection value with the pre-stored value for the degree of filter clogging at the corresponding weight after obtaining the weight of the clothes to be dried and the initial detection value for filter clogging, obtains the final detection value for the degree of filter clogging. This introduces the weight of the clothes, which may affect the accuracy of the dryer filter clogging detection process, into the process, and adjusts the detection value for the degree of filter clogging based on the weight of the clothes, thereby improving the accuracy and intelligence of the filter clogging detection process. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0037] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A schematic flowchart illustrating a method for detecting filter clogging in a clothes dryer, provided in an embodiment of this disclosure;

[0039] Figure 2 A detailed flowchart of a method for detecting filter clogging in a clothes dryer provided in this embodiment of the disclosure;

[0040] Figure 3 A detailed flowchart of another method for detecting filter clogging in a clothes dryer provided in this embodiment of the present disclosure;

[0041] Figure 4 A schematic diagram of a device for detecting filter clogging in a clothes dryer provided in an embodiment of this disclosure;

[0042] Figure 5 This disclosure provides a schematic diagram of the structure of a clothes dryer. Detailed Implementation

[0043] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0044] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0045] Figure 1 This is a flowchart illustrating a method for detecting filter clogging in a dryer, as provided in this embodiment of the disclosure. The method for detecting filter clogging in a dryer can be applied to scenarios requiring the detection of the degree of clogging in the dryer's filter. It can be executed by the dryer filter clogging detection device provided in this embodiment of the disclosure, which can be implemented using software and / or hardware. Figure 1 As shown, the methods for detecting dryer filter clogging include:

[0046] S101. Obtain the weight of the clothes to be dried in the dryer.

[0047] Specifically, a weighing sensor can be installed inside the dryer, such as inside the drying drum, to detect the weight of the clothes already placed in the dryer. Alternatively, the user can weigh the clothes before placing them in the dryer and input the weight through the dryer's control panel. It should be noted that other methods can also be used to obtain the weight of the clothes, and this embodiment does not limit this method.

[0048] S102. Obtain the pre-stored value of the filter clogging degree corresponding to the weighing weight.

[0049] Specifically, to avoid other factors that may affect the accuracy of the dryer filter clogging detection, resulting in low detection accuracy and intelligence in the dryer filter clogging detection process, several load levels can be pre-defined based on the weighing weight, i.e., several weight levels. The filter clogging level under each load level can be pre-stored as a pre-stored value. After obtaining the weight of the clothes to be dried and the initial detection value of the filter clogging level, the initial detection value is compared with the pre-stored value of the filter clogging level under the corresponding load level of the clothes to be dried to obtain the final detection value of the filter clogging level.

[0050] Optionally, the pre-stored value of filter clogging degree for the corresponding weight is obtained based on the weighing weight, including: obtaining the pre-stored correspondence between the weight of the clothes to be dried and the pre-stored value of filter clogging degree; and obtaining the pre-stored value of filter clogging degree for the corresponding weight based on the weighing weight and the pre-stored correspondence.

[0051] For example, the load can be pre-divided into several load levels based on the weighing weight. For instance, 0-0.5 kg can be used as the first load level, 0.5-1 kg as the second load level, and so on, with each 0.5 kg representing a load level. When the dryer's maximum load capacity is 10 kg, then 20 load levels can be pre-divided based on the weighing weight. Furthermore, this embodiment does not limit the number of load levels. It is understood that the more load levels there are, the higher the accuracy of the filter clogging detection.

[0052] Each load setting corresponds to multiple pre-stored values ​​for filter clogging levels. For example, using the difference between the forward and reverse drive currents of the motor to sense the clogging level, for instance, when the current difference is 1.0A in the first load setting (0-0.5 kg), the clogging level is 10%, which is designated as the first clogging level under the first load setting. When the current difference is 0.5A, the clogging level is 20%, which is designated as the second clogging level under the first load setting. Following this method, the clogging levels corresponding to all clogging levels under the first load setting can be obtained. The correspondence between weight and clogging level pre-stored values ​​is stored in advance, facilitating user lookup when actually detecting clogging levels, thus improving the efficiency and accuracy of clogging level detection. For example, when it is necessary to detect filter clogging and the weight of the clothes to be dried is found to be 0.4 kg, the pre-stored clogging level pre-stored values ​​for all clogging levels under the first load setting are obtained based on the pre-stored correspondence.

[0053] It should be noted that the specific weight classification of the clothes to be dried, the specific value of the pre-stored value of the degree of clogging corresponding to the weight, and the method of sensing the degree of clogging can be set according to the user's needs for using the dryer, as long as the accuracy requirements of filter clogging detection are met. This disclosed embodiment does not limit these settings.

[0054] S103. Obtain the initial detection value of the degree of filter clogging in the dryer.

[0055] Specifically, to avoid the problem of severely clogged dryer filters causing poor airflow and a significant reduction in air volume, which leads to increased energy consumption and reduced drying efficiency, the dryer detects the degree of filter clogging after the user inputs the command to start the dryer and the drive motor has been running for a period of time. This initial detection value of the filter clogging level is obtained, and the system can promptly remind the user to clean the filter based on the degree of clogging, thereby improving drying efficiency and reducing dryer energy consumption.

[0056] Optionally, the initial detection value of the degree of filter clogging in the dryer is obtained, including: detecting the drive current of the drive motor in the dryer when it rotates forward and when it rotates in reverse; and obtaining the initial detection value based on the difference between the drive current when it rotates forward and when it rotates in reverse.

[0057] Specifically, when a dryer becomes clogged, airflow inside the dryer becomes difficult and airflow decreases. Therefore, the air load on the inner drum varies depending on the degree of filter clogging. This air load can be represented by the drive current of the motor during forward and reverse rotation. Since the greater the filter clogging, the smaller the forward drive current, while the reverse drive current remains unchanged, an initial detection value can be obtained based on the difference between the detected forward and reverse drive currents. For example, multiple sets of differences between the forward and reverse drive currents, along with the corresponding degrees of filter clogging, can be pre-stored. During the current clothes drying process, the difference between the current forward and reverse drive currents is compared with the pre-stored differences, and the corresponding degree of filter clogging is obtained by looking up a table, thus serving as the initial detection value for the filter clogging degree. It should be noted that the methods for obtaining the drive current during forward rotation and the drive current during reverse rotation are well known to those skilled in the art, and will not be elaborated upon in this embodiment. In addition, the correspondence between the current difference and the degree of blockage can be set according to the actual use of the dryer, and will not be limited in this embodiment.

[0058] Furthermore, during the operation of the dryer, once the filter becomes clogged, the airflow in the air circulation will decrease accordingly. The condenser will not be able to exchange heat sufficiently with the circulating air, resulting in reduced heat dissipation from the condenser. Consequently, the temperature difference between the condenser inlet and outlet decreases. Therefore, the degree of filter clogging can be accurately determined by observing the change in the temperature difference between the condenser inlet and outlet. The specific detection method is well-known to those skilled in the art and will not be elaborated upon in this embodiment. Additionally, the correspondence between the temperature difference and the degree of clogging can be set according to the actual usage of the dryer, and this embodiment does not limit this setting.

[0059] S104. The final detection value of the filter clogging degree is obtained based on the pre-stored value of the filter clogging degree and the initial detection value.

[0060] Specifically, in order to improve the accuracy of filter clogging detection and avoid the influence of clothing weight on the judgment of filter clogging, the pre-stored value of filter clogging is compared with the initial detection in turn, so as to obtain the final detection value of filter clogging based on the weight of the clothes to be dried, thereby improving the accuracy of filter clogging detection.

[0061] Optionally, the final detection value of the filter clogging degree is obtained based on the pre-stored value of the filter clogging degree and the initial detection value, including: sequentially comparing the initial detection value with several levels of the pre-stored value of the filter clogging degree; wherein the several levels of the value change sequentially; and obtaining the final detection value based on the comparison result of the initial detection value of the several levels of the value.

[0062] Specifically, each preset value for the degree of filter clogging corresponds to multiple gear values. For example, under the first load gear, there may be a first preset number of gear values, where each gear value represents the degree of filter clogging. The multiple gear values ​​can vary from small to large or from large to small. Under the second load gear, there may also be a second preset number of gear values, and so on, to ensure that there is a corresponding preset number of gear values ​​under each load gear. The number of gear values ​​corresponding to each load gear can be the same or different, and this embodiment does not limit this.

[0063] It should be noted that the specific number of clogging levels corresponding to each load level, and the specific value of the level corresponding to each filter clogging level preset value, can be set according to the actual use of the dryer, and this embodiment does not limit this.

[0064] Optionally, multiple gear values ​​change from small to large, and a final detection value is obtained based on the comparison results of several gear values ​​with the initial detection value, including: obtaining a pre-stored first gear value and a second gear value; wherein, the gear value that is greater than the initial detection value for the first time is used as the first gear value, and the gear value preceding the first gear value is used as the second gear value; based on the difference between the first gear value and the initial detection value and the difference between the second gear value and the initial detection value, the first gear value or the second gear value is used as the final detection value.

[0065] Specifically, taking the weight of the clothes to be dried as belonging to the second load setting as an example, the second load setting is exemplarily set with ten preset values ​​based on the degree of filter clogging, which can be divided into D values ​​according to the degree of clogging from small to large. 21 D 22 D 23 ...D 210 There are ten gears, including D. 21 The gear with the least congestion, D 210 For the gear with the highest level of congestion, you can set gear D. 21 A value of 5% indicates a 5% level of congestion, gear D. 22 A value of 10% indicates a 10% blockage level, gear D. 23 The value is 15%, which represents a 15% degree of blockage. It should be noted that the correspondence between the gear value and the degree of blockage can be set according to the actual usage needs of the dryer, and this embodiment does not limit this.

[0066] For example, based on the above classification of clogging levels, when a user checks the clogging level of the filter after running the dryer for a period of time, if the initial detection value is 12% clogging, multiple pre-stored level values ​​are compared with the initial detection value one by one. The system can start with the lowest value, D.21 Let's start the comparison, gear D. 21 Value and gear D 22 The values ​​are all lower than the initial detection value, indicating that the filter is already more clogged than at setting D. 21 and gear D 22 The corresponding level of congestion, continue in gear D. 23 Compared with the initial detection value, gear D 23 If the value is 15% greater than the initial detection value, then shift to gear D. 23 The value is used as the first gear value, and the value of the gear preceding the first gear value, i.e., gear D, is used. 22 The value is used as the second gear value, gear D. 22 The difference between the value and the initial detection value is less than 2% of D. 23 The difference between the gear position value and the initial detection value is 3%, so the gear is set to D. 22 The value of 10%, representing the second gear setting, is used as the final detection value to determine the degree of filter clogging under the second load setting. This final detection value of 10% improves the accuracy of filter clogging detection. If the initial detection value is 14% clogging, then gear D... 22 The difference between the value and the initial detection value is 4%, which is greater than gear D. 23 If the difference between the value and the initial detection value is 1%, then shift to gear D. 23 The value of 15%, i.e., the fourth level value, is used as the final detection value.

[0067] Alternatively, the average of the first and second gear values ​​can be calculated as the first average value. If the first gear value is set to 15% for the degree of congestion and the second gear value is set to 10% for the degree of congestion, then the first average value is 12.5%. If the initial detection value of 12% for the degree of congestion is less than the first average value of 12.5%, then the second gear value is used as the final detection value. If the initial detection value of 13% for the degree of congestion is greater than the first average value, then the first gear value is used as the final detection value.

[0068] It should be noted that the specific number of gears and the specific values ​​of the first and second gears can be set according to the actual usage needs of the dryer, and this embodiment does not limit this.

[0069] Optionally, multiple gear values ​​change from large to small. The final detection value is obtained by comparing the initial detection value with the multiple gear values, including: obtaining the stored third gear value and fourth gear value; wherein, the first gear value that is less than the initial detection value is taken as the third gear value, and the gear value preceding the third gear value is taken as the fourth gear value; the third gear value or the fourth gear value is determined as the final detection value based on the difference between the third gear value and the initial detection value, and the difference between the fourth gear value and the initial detection value.

[0070] Specifically, taking the weight of the clothes to be dried as belonging to the second load setting as an example, the preset value for the filter clogging level under the second load setting is exemplarily divided into ten levels. The second load setting can be set to be divided into D levels according to the degree of clogging, from smallest to largest. 21 D 22 D 23 ...D 210 There are ten gears, including D. 210 The gear with the highest level of congestion, D 21 For the gear with the least congestion, you can set gear D. 210 A value of 100% indicates a 100% congestion level; gear D. 29 A value of 90% indicates a 90% blockage level, gear D. 28 A value of 80% indicates that the blockage is 80%. It should be noted that the correspondence between the gear value and the degree of blockage can be set according to the actual usage needs of the dryer, and this embodiment does not limit this.

[0071] For example, based on the above classification of clogging levels, when the user checks the clogging level of the filter after running the dryer for a period of time, if the initial detection value is 83% clogging, the pre-stored values ​​for each level are compared with the initial detection value, starting with the level D with the highest value. 210 Let's start the comparison, gear D. 210 Value and gear D 29 The values ​​are all greater than the initial detection value, indicating that the filter is not yet clogged to level D. 210 and gear D 29 The corresponding level of congestion, continue to D 28 The corresponding gear value is compared with the initial detection value, gear D. 28 If the value is less than the gear value of the initial detection value, then the gear will be shifted to D. 28 The value is used as the third gear value, and the value of the gear preceding the third gear value, i.e., gear D, is used. 29 The value is used as the fourth gear value, gear D. 28 The difference between the value and the initial detection value is less than 3% of the gear D. 29 If the difference between the value and the initial detection value is 7%, then shift to gear D. 28 If the value of 80%, i.e., the value of the third gear, is used as the final detection value, then it is determined that the filter clogging level is 80% under the second load setting, thus improving the accuracy of filter clogging detection. If the initial detection value is 86% clogging, then gear D... 28 The difference between the value and the initial detection value is 6%, which is greater than gear D. 29 If the difference between the value and the initial detection value is 4%, then shift to gear D. 29 The value of 90%, i.e., the fourth level value, is used as the final detection value.

[0072] Alternatively, the average of the third and fourth gear values ​​can be used as the second average. For example, if the third gear value is 80% of the blockage and the fourth gear value is 90% of the blockage, then the first average is 85%. If the initial detection value of 83% of the blockage is less than the second average of 85%, then the third gear value is used as the final detection value. If the initial detection value of 88% of the blockage is greater than the first average, then the fourth gear value is used as the final detection value.

[0073] It should be noted that the specific number of gears and the specific values ​​of the third and fourth gears can be set according to the actual usage needs of the dryer, and this embodiment does not limit this.

[0074] Optionally, the final detection value is obtained based on the comparison results of multiple gear values ​​and the initial detection value, including: when the maximum value of the gear value is less than the initial detection value, the initial detection value is used as the final detection value.

[0075] Specifically, when comparing the pre-stored filter clogging levels with the initial detection value in descending or ascending order, if the initial detection value exceeds the maximum value of a given level, the initial detection value can be directly used as the final detection value. For example, if the weighing weight is 1.5 kg and the initial detection value corresponds to a clogging level of 95%, and the maximum value of the given level for a load of 1.5 kg is 80% clogging, then the clogging level of 95% will be displayed to the user as the final detection value.

[0076] Optionally, after obtaining the final detection value of the filter clogging degree based on the pre-stored value of the filter clogging degree and the initial detection value, the method further includes: displaying and / or audibly prompting the user with the final detection value.

[0077] Specifically, a display and prompting device can be installed on the dryer. When the final detection value of filter clogging is obtained, a prompt message about the clogging can be issued to the user. The display and prompting device can be, for example, a progress bar composed of LED indicator lights. The percentage of clogging can be displayed based on the color change of the progress bar; for example, a clogging degree of 0%-20% corresponds to a yellow progress bar, 20%-50% to a yellow progress bar, 50%-80% to an orange progress bar, and 80%-100% to a red progress bar. It should be noted that the correspondence between color and the final detection value can be set according to the actual usage of the dryer, and this embodiment does not limit this. Alternatively, the display and prompting device can also be a display screen, which directly displays the numerical prompt message of the filter clogging degree, such as 50%, and this embodiment does not limit this either.

[0078] Alternatively, an audio prompt device can be installed on the dryer to remind the user to clean the filter in time by playing the final detection value or other similar prompts. The audio prompt device can also be any other device configured to issue audio prompts, such as a buzzer. The buzzer can emit a continuous beep or intermittent whistle depending on the degree of blockage, and this embodiment does not limit this to that.

[0079] It should be noted that the final detection value can be indicated to the user through both visual and audio prompts, or only through visual prompts or only through audio prompts.

[0080] Figure 2 A detailed flowchart of a method for detecting filter clogging in a clothes dryer, as provided in this embodiment of the disclosure, is shown below. Figure 2 As shown, the methods for detecting dryer filter clogging include:

[0081] S201, Dryer starts.

[0082] S202. Obtain the weight of the clothes to be dried.

[0083] S203. Obtain the load level m corresponding to the weighing weight.

[0084] S204. Obtain the pre-stored value of filter clogging degree and the pre-stored correspondence between load level m;

[0085] S205. Based on the correspondence, obtain the pre-stored value of the filter clogging degree for the corresponding load level m.

[0086] S206. Obtain the initial detection value D of the filter clogging degree.

[0087] S207. Set the initial value of K to 1; where K is the sequence number of the blocking gear.

[0088] S208. Determine whether the initial detection value D is less than the gear value D. mK If yes, proceed to step 209; otherwise, proceed to step 210.

[0089] S209, Determine the gear position value D mK Is the difference between the initial detection value D and the value D less than D? mK-1 The difference between the initial detection value D and the value of the initial detection value D; if yes, proceed to step 210; if no, proceed to step 211.

[0090] S210. Determine if K is less than n; where n represents the total number of load values ​​under load level m, D mn The value of the gear with the highest degree of congestion under load gear m; if yes, proceed to step 213; otherwise, proceed to step 214.

[0091] S211. Inform the user that the final detection value is gear value D. mK .

[0092] S212. Inform the user that the final detection value is gear value D. mK-1 .

[0093] S213. Update the value of K and set K = K + 1.

[0094] S214. Prompt the user that the final detection value is the initial detection value D.

[0095] Figure 3 A detailed flowchart of a method for detecting filter clogging in a clothes dryer, as provided in this embodiment of the disclosure, is shown below. Figure 3 As shown, the methods for detecting dryer filter clogging include:

[0096] S301, Dryer started.

[0097] S302. Obtain the weight of the clothes to be dried.

[0098] S303. Obtain the load level m corresponding to the weighing weight.

[0099] S304. Obtain the pre-stored value of filter clogging degree and the pre-stored correspondence between load level m;

[0100] S305. Based on the correspondence, obtain the pre-stored value of the filter clogging degree for the corresponding load level m.

[0101] S306. Obtain the initial detection value D of the filter clogging degree.

[0102] S307. Set the initial value of K to n; where K is the sequence number of the blocking gear, n represents the total number of gear values ​​under the load gear m, and D mn This is the gear value with the highest degree of congestion at load level m.

[0103] S308. Determine whether the initial detection value D is greater than the gear value D. mK If yes, proceed to step 309; otherwise, proceed to step 310.

[0104] S309. Determine if K is n; where n represents the total number of load values ​​under load level m, D mn The value of the gear with the highest degree of congestion under load gear m; if yes, proceed to step 314; otherwise, proceed to step 310.

[0105] S310, Determine the gear position value D mK Is the difference between the initial detection value D and the value D less than D? mK+1The difference between the initial detection value D and the initial detection value D; if yes, proceed to step 311; if no, proceed to step 312.

[0106] S311. Inform the user that the final detection value is gear value D. mK .

[0107] S312. Inform the user that the final detection value is gear value D. mK+1 .

[0108] S313. Update the K value and set K = K-1.

[0109] S314. Prompt the user that the final detection value is the initial detection value D.

[0110] This embodiment of the present disclosure, after obtaining the weight of the clothes to be dried and the initial detection value of filter clogging, compares the initial detection value with the pre-stored value of the degree of filter clogging under the corresponding weight, thereby obtaining the final detection value of the degree of filter clogging. In the process of detecting the degree of filter clogging in the dryer, the weight of the clothes, which may affect the accuracy of the detection, is introduced, and the detection value of the degree of filter clogging in the dryer is adjusted according to the weight of the clothes, thereby improving the accuracy and intelligence of the filter clogging detection process.

[0111] This disclosure also provides a device for detecting dryer filter clogging. Figure 4 This is a schematic diagram of a device for detecting filter clogging in a clothes dryer, provided in an embodiment of this disclosure. Figure 4 As shown, the dryer filter clogging detection device includes a weight acquisition module 401, a pre-stored value acquisition module 402, an initial detection value acquisition module 403, and a final detection value acquisition module 404. The weight acquisition module 401 is used to acquire the weight of the clothes to be dried; the pre-stored value acquisition module 402 is used to acquire a pre-stored value of the filter clogging degree corresponding to the weight; the initial detection value acquisition module 403 is used to acquire an initial detection value of the filter clogging degree in the dryer; and the final detection value acquisition module 404 is used to acquire a final detection value of the filter clogging degree based on the pre-stored value and the initial detection value.

[0112] This disclosure also provides a storage medium, such as a computer-readable storage medium, which stores a program or instructions that, when executed by a computer, are used to perform a method for detecting clogging in a dryer filter. Therefore, this storage medium has the beneficial effects described in the above embodiments, which will not be elaborated upon here.

[0113] Optionally, when executed by a computer processor, the computer-executable instructions can also be used to execute the technical solution of the dryer filter clogging detection method provided in any embodiment of this disclosure.

[0114] This disclosure also provides a clothes dryer. Figure 5 This is a schematic diagram of the structure of a clothes dryer provided in an embodiment of this disclosure. Figure 5 As shown, the dryer includes a processor 501 and a memory 502. The processor 501 executes the steps of the dryer filter clogging detection method as described in the above embodiment by calling the program or instructions stored in the memory 502. Therefore, it has the beneficial effects of the above embodiment, which will not be repeated here. In addition, the dryer is preferably a top-loading dryer.

[0115] Specifically, such as Figure 5 As shown, a clothes dryer can be configured to include at least one processor 501, at least one memory 502, and at least one communication interface 503. The various components of the dryer are coupled together via a bus system 505. The communication interface 503 is used for information transmission with external devices. It is understood that the bus system 505 is used to implement communication between these components. In addition to a data bus, the bus system 505 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 5 The general designated all buses as Bus System 505.

[0116] It is understood that the memory 502 in this embodiment may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. In some embodiments, the memory 502 stores the following elements: executable units or data structures, or subsets thereof, or extended sets thereof, operating systems, and applications. In embodiments of this disclosure, the processor 501 executes the steps of various embodiments of the dryer filter clogging detection method provided in this disclosure by calling programs or instructions stored in the memory 502.

[0117] The method for detecting dryer filter clogging provided in this disclosure can be applied to, or implemented by, processor 501. Processor 501 can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by integrated logic circuits in the hardware of processor 501 or by instructions in software form. The processor 501 can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The general-purpose processor can be a microprocessor or any conventional processor.

[0118] The steps of the dryer filter clogging detection method provided in this disclosure can be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software units in the decoding processor. The software units can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory 502, and the processor 501 reads the information in memory 502 and combines it with the hardware to complete the steps of the method.

[0119] The dryer may also include one or more physical components to execute instructions generated by the processor 501 when performing the dryer filter clogging detection method provided in this embodiment. Different physical components may be located inside or outside the dryer, such as a cloud server. Each physical component, together with the processor 501 and memory 502, works to implement the functions of the dryer in this embodiment.

[0120] Based on the above description of the implementation methods, those skilled in the art can clearly understand that this application can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods of the various embodiments of this disclosure.

[0121] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0122] The above are merely specific embodiments of this disclosure, enabling those skilled in the art to understand or implement this disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to these embodiments, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for detecting filter clogging in a clothes dryer, characterized in that, include: Obtain the weight of the clothes to be dried in the dryer; Based on the weighing weight, obtain the pre-stored value of the filter clogging degree corresponding to the weighing weight; Obtain the initial detection value of the degree of filter clogging in the dryer; The final detection value of the filter clogging degree is obtained based on the initial detection value and the pre-stored value of the filter clogging degree; The step of obtaining the initial detection value of the degree of filter clogging in the dryer includes: Obtain the forward drive current and reverse drive current of the drive motor in the dryer; The initial detection value is obtained based on the difference between the forward drive current and the reverse drive current; The step of obtaining the final detection value of the filter clogging degree based on the initial detection value and the pre-stored value of the filter clogging degree includes: The initial detection value is compared sequentially with multiple preset values ​​for the degree of filter clogging. The final detection value is obtained based on the comparison result between the initial detection value and the multiple gear values.

2. The method for detecting filter clogging in a clothes dryer according to claim 1, characterized in that, The step of obtaining a pre-stored value for the degree of filter clogging corresponding to the weighed weight includes: Obtain the pre-stored correspondence between the weight of the clothes to be dried and the pre-stored value of the filter clogging degree; The pre-stored value of the filter clogging degree corresponding to the weighed weight is obtained based on the weighed weight and the pre-stored correspondence.

3. The method for detecting filter clogging in a clothes dryer according to claim 1, characterized in that, in, The multiple gear values ​​change sequentially.

4. The method for detecting filter clogging in a clothes dryer according to claim 3, characterized in that, The multiple gear values ​​change from small to large, and obtaining the final detection value based on the comparison result between the initial detection value and the multiple gear values ​​includes: Obtain a first gear value and a second gear value; wherein, the first gear value is the gear value that is first greater than the initial detection value, and the second gear value is the gear value preceding the first gear value; The first gear value or the second gear value is determined as the final detection value based on the difference between the initial detection value and the first gear value, and the difference between the initial detection value and the second gear value.

5. The method for detecting filter clogging in a clothes dryer according to claim 3, characterized in that, The multiple gear values ​​change from large to small, and obtaining the final detection value based on the comparison result between the initial detection value and the multiple gear values ​​includes: Obtain the third gear value and the fourth gear value; wherein, the third gear value is the gear value that is first less than the initial detection value, and the fourth gear value is the gear value preceding the third gear value; The third gear value or the fourth gear value is determined as the final detection value based on the difference between the initial detection value and the third gear value, and the difference between the initial detection value and the fourth gear value.

6. The method for detecting filter clogging in a clothes dryer according to claim 3, characterized in that, The step of obtaining the final detection value based on the comparison result between the initial detection value and the multiple gear values ​​includes: When the initial detection value is greater than the maximum value of the gear position, the initial detection value is taken as the final detection value.

7. The method for detecting filter clogging in a clothes dryer according to claim 1, characterized in that, After obtaining the final detection value of the filter clogging degree based on the initial detection value and the pre-stored value of the filter clogging degree, the method further includes: Based on the final detection value, the system will display and / or provide audio prompts to the user regarding the final detection value.

8. A device for detecting filter clogging in a clothes dryer, characterized in that, include: The weight acquisition module is used to acquire the weight of the clothes to be dried in the dryer; The pre-stored value acquisition module is used to acquire a pre-stored value of the filter clogging degree corresponding to the weighed weight; An initial detection value acquisition module is used to acquire an initial detection value of the degree of filter clogging in the dryer; The final detection value acquisition module is used to acquire the final detection value of the filter clogging degree based on the initial detection value and the pre-stored value of the filter clogging degree; The step of obtaining the initial detection value of the degree of filter clogging in the dryer includes: Obtain the forward drive current and reverse drive current of the drive motor in the dryer; The initial detection value is obtained based on the difference between the forward drive current and the reverse drive current; The step of obtaining the final detection value of the filter clogging degree based on the initial detection value and the pre-stored value of the filter clogging degree includes: The initial detection value is compared sequentially with multiple preset values ​​for the degree of filter clogging. The final detection value is obtained based on the comparison result between the initial detection value and the multiple gear values.

9. A clothes dryer, characterized in that, include: The processor and memory, wherein the processor executes the steps of the dryer filter clogging detection method as described in any one of claims 1-7 by calling programs or instructions stored in the memory.

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