Washing machine and control method thereof

Abstract

The application discloses a washing machine and a control method thereof, wherein the washing machine comprises a baffle arranged at the back side of a rear cylinder wall, the baffle is provided with a second hole corresponding to a first hole; a driving device connected with the baffle is used for driving the baffle to rotate and controlling the opening and closing of the first hole; and a control device connected with the driving device is used for determining a drying stage of the washing machine and controlling the opening and closing of the first hole according to the drying stage. The application solves the problem of poor flatness of the drying clothes in the prior art, and achieves high-efficiency drying of the clothes and good flatness of the clothes.

Description

Technical Field

[0001] This invention relates to the field of washing machine technology, and more specifically, to a washing machine and its control method. Background Technology

[0002] With increasing consumer health awareness, changing lifestyles, and a faster pace of life, washing machines have become indispensable tools in people's lives, bringing great convenience. As technology advances, washing machines are becoming increasingly intelligent and offer more functions, with washer-dryer combos gradually gaining popularity. The smoothness of dried clothes has become a key concern for consumers. However, most current washer-dryer combos rely solely on dehumidification to dry clothes, resulting in inconsistent and often poorly smooth garments after drying.

[0003] There is currently no effective solution to the problem of poor flatness of clothes when drying clothes in washing machines in related technologies. Summary of the Invention

[0004] This invention provides a washing machine and its control method to at least solve the problem of poor flatness of clothes dried in washing machines in the prior art.

[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, a washing machine is provided, which is a washer-dryer combo, wherein a first hole is provided on the rear wall of the washing machine drum, and the washing machine further includes:

[0006] A baffle is provided on the rear side of the rear cylinder wall, and a second hole corresponding to the first hole is provided on the baffle.

[0007] A drive unit, connected to the baffle, is used to drive the baffle to rotate and control the opening or closing of the first hole;

[0008] A control device, connected to a drive device, is used to determine the drying stage of the washing machine and control the opening and closing of the first hole according to the drying stage.

[0009] Furthermore, the drying stage includes at least a rapid dehumidification stage and a wrinkle removal stage, and the control device is used to control the opening of the first hole during the rapid dehumidification stage and to control the closing of the first hole during the wrinkle removal stage.

[0010] Furthermore, it also includes:

[0011] A humidity detector is used to detect the moisture content of underwear in a washing machine.

[0012] The control device is connected to the humidity detection device and is also used to determine the drying stage based on the moisture content.

[0013] Furthermore, the control device stores a table showing the correspondence between different types of clothing and wrinkle-removing moisture content ranges. The control device is used to determine the drying stage as a rapid dehumidification stage when the moisture content is greater than the maximum value of the wrinkle-removing moisture content range, and to determine the drying stage as a wrinkle-removing stage when the moisture content is within the wrinkle-removing moisture content range.

[0014] Furthermore, the control device is also used to control the rotation-to-stop ratio of the drum, wherein the drum is controlled to operate according to a first rotation-to-stop ratio during the rapid dehumidification stage and to operate according to a second rotation-to-stop ratio during the wrinkle removal stage; the first rotation-to-stop ratio is less than the second rotation-to-stop ratio.

[0015] Furthermore, the driving device includes: a driving shaft connected to a baffle; and a driving motor connected to the driving shaft for driving the driving shaft to rotate.

[0016] According to another aspect of the present invention, a washing machine control method is provided, applied to the washing machine as described above, the method comprising:

[0017] The moisture content of the clothes is obtained during the drying process of the washing machine;

[0018] The drying stage is determined based on the moisture content;

[0019] The opening and closing of the holes on the rear drum wall of the washing machine is controlled according to the drying stage.

[0020] Furthermore, the drying stage includes at least: a rapid dehumidification stage and a wrinkle removal stage; the drying stage is determined based on the moisture content and includes:

[0021] Determine the appropriate moisture content range for wrinkle removal of the clothes inside the washing machine;

[0022] When the moisture content is greater than the maximum value of the wrinkle removal moisture content range, the drying stage is determined to be the rapid dehumidification stage;

[0023] When the moisture content is within the wrinkle-removing moisture content range, the drying stage is determined to be the wrinkle-removing stage.

[0024] Furthermore, determining the appropriate moisture content range for wrinkle removal in the clothes inside the washing machine includes:

[0025] Obtain a pre-stored table showing the correspondence between different clothing materials and wrinkle-removing moisture content ranges;

[0026] Determine the material of the clothes in the washing machine;

[0027] Based on the material of the clothes in the washing machine, determine the corresponding range of wrinkle-removing moisture content for the clothes in the washing machine using the corresponding relationship table.

[0028] Furthermore, it also includes:

[0029] The rotation-stop ratio of the washing machine drum is controlled according to the drying stage; specifically, the drum is controlled to operate according to the first rotation-stop ratio during the rapid dehumidification stage, and the drum is controlled to operate according to the second rotation-stop ratio during the wrinkle removal stage; the first rotation-stop ratio is less than the second rotation-stop ratio.

[0030] Furthermore, when the moisture content is within the wrinkle-removing moisture content range, the drying stage is defined as the wrinkle-removing stage, including:

[0031] At preset intervals, the moisture content is checked to see if it falls within the wrinkle-reducing moisture content range.

[0032] When the number of times the moisture content is within the wrinkle-removing moisture content range is reached according to the preset number of tests, the drying stage is determined to be the wrinkle-removing stage.

[0033] According to another aspect of the present invention, a storage medium containing computer-executable instructions is provided, which, when executed by a computer processor, are used to perform the washing machine control method as described above.

[0034] This invention provides a washing machine with intelligent drying function. The rear wall of the washing machine drum has holes, and a baffle and a drive device are installed on the rear side of the rear drum wall to control the opening and closing of the holes. The opening and closing of the holes are controlled according to the needs of different drying stages. When the holes are open, airflow is increased during the drying process, improving heat exchange efficiency and drying clothes more quickly. When the holes are closed, the air blown from the air outlet can stay inside the drum for a longer time, increasing the agitation force and thus achieving better clothes smoothness. The control of the holes in these two drying processes works in conjunction, efficiently drying clothes while achieving good smoothness, effectively solving the problem of poor smoothness of clothes after drying due to the single drying method in existing technologies. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the location of the rear drum wall and the first hole of a washing machine according to an embodiment of the present invention;

[0036] Figure 2 This is an optional schematic diagram showing the first hole fully open according to an embodiment of the present invention;

[0037] Figure 3 This is an optional schematic diagram showing the first hole being completely closed according to an embodiment of the present invention;

[0038] Figure 4 This is a schematic diagram of an optional structure of the baffle according to an embodiment of the present invention;

[0039] Figure 5 This is a schematic diagram of the baffle installation position according to an embodiment of the present invention;

[0040] Figure 6 This is a partially enlarged schematic diagram of the baffle when the first hole is closed according to an embodiment of the present invention;

[0041] Figure 7 This is a partially enlarged schematic diagram of the baffle when the first hole is opened according to an embodiment of the present invention;

[0042] Figure 8 This is an optional flowchart of a washing machine control method according to an embodiment of the present invention;

[0043] Figure 9 This is another optional flowchart of the washing machine control method according to an embodiment of the present invention.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1. Rear cylinder wall; 2. Baffle; 3. Drive motor; 4. Drive shaft; 5. Motor that drives the inner cylinder to rotate; 6. First hole. Detailed Implementation

[0046] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the invention as detailed in the appended claims.

[0047] Example 1

[0048] In a preferred embodiment 1 of the present invention, a washing machine is also provided, which is a washer-dryer combo, and a first hole is provided on the rear drum wall of the washing machine drum. Figure 1 A schematic diagram showing the location of the rear drum wall and the first hole of the washing machine is shown, as follows. Figure 1 As shown, the first perforation is distributed in three areas. These perforations on the rear drum are the ones that need to be controlled to open and close during the drying process. The purpose of these first perforations is to increase airflow and improve heat exchange efficiency during drying, thereby achieving the goal of drying clothes as quickly as possible. During this process, the opening and closing of the first perforation on the rear drum wall can be controlled by the washing machine program. In one stage of drying, the perforation is fully opened to quickly dehumidify and dry the clothes; in another stage, the perforation is closed, allowing the air blown from the vent to remain inside the drum for a longer time, increasing the agitation force and thus achieving better smoothness of the dried clothes.

[0049] Figure 2 An alternative schematic diagram is shown, such as: the first hole is fully open. Figure 2 As shown, this state means that the holes in the rear cylinder wall are fully open, corresponding to the rapid dehumidification process.

[0050] Figure 3 An alternative schematic diagram is shown, where the first hole is completely closed, as follows: Figure 3 As shown, this state means that the holes in the rear cylinder wall are completely closed, corresponding to the wrinkle removal process.

[0051] The method for controlling the opening and closing of the holes in the rear cylinder wall mentioned above is to add another baffle, namely baffle 2, behind the rear cylinder wall. Figure 4 A schematic diagram of one possible structure of the baffle is shown, such as... Figure 4 As shown, the baffle has a corresponding hole that is exactly the same as the hole in the rear cylinder wall, i.e., the second hole. When the hole in the rear cylinder wall and the hole in the baffle are completely aligned, the hole in the rear cylinder wall is in the fully open state; when the hole in the rear cylinder wall and the hole in the baffle are misaligned, the hole in the rear cylinder wall is in the closed state.

[0052] like Figure 5 As shown, this is a schematic diagram of the baffle installation position. The baffle 2 is attached to the back of the rear drum wall 1, and it is connected to an independent rotating shaft, namely the drive shaft 4, which is embedded in the central shaft of the entire rear drum of the washing machine. This rotating shaft is driven by an independent motor, namely the drive motor 3, to control the rotation of the baffle. In addition, a motor 5 is also provided to drive the inner drum to rotate.

[0053] Figure 6 This is a magnified schematic diagram of the baffle when the first hole is closed. Figure 7 This is a magnified view of the baffle when the first hole is opened. Figure 6 and Figure 7 These are side views of the rear cylinder wall, as shown in the figure. Since these two figures are side views of the rear cylinder wall, the first hole 6 of the rear cylinder wall will appear as vertical lines when viewed from the side. When the first hole 6 of the rear cylinder wall is fully aligned with the second hole of the baffle, the first hole 6 of the rear cylinder wall is in a fully open state. When the first hole 6 of the rear cylinder wall is misaligned with the second hole of the baffle, the first hole 6 of the rear cylinder wall is in a closed state.

[0054] In the above embodiment, a washing machine with intelligent drying function is provided. The rear wall of the washing machine drum has holes, and a baffle and a drive device are also provided on the rear side of the rear drum wall. These devices can control the opening and closing of the holes, adjusting their position according to the needs of different drying stages. When the holes are open, airflow is increased during the drying process, improving heat exchange efficiency and allowing clothes to dry more quickly. When the holes are closed, the air blown from the air outlet stays inside the drum longer, increasing the agitation force and resulting in better garment smoothness. The control of the holes in these two drying processes works in tandem, efficiently drying clothes while achieving good smoothness, effectively solving the problem of poor garment smoothness caused by the single drying method in existing technologies.

[0055] In a preferred embodiment of the present invention, the drying process includes at least a rapid dehumidification stage and a wrinkle removal stage. The control device controls the opening of the first hole during the rapid dehumidification stage and the closing of the first hole during the wrinkle removal stage. Furthermore, the washing machine is equipped with a humidity detector for detecting the moisture content of the clothing; the control device is connected to the humidity detector and is also used to determine the drying stage based on the moisture content.

[0056] According to the formula for calculating the air volume of a circular duct, Q = V * F * 3600s, where F (m²) is the cross-sectional area of ​​the duct, V (m / s) is the air velocity in the duct, and Q (m³ / s) is the air velocity in the duct. 3 / h) is the air volume. The cross-sectional area of ​​a circular duct is calculated as F(㎡)=πR 2 R is the radius of the circular duct. Generally, the air blowing out of the duct has two outlets: one is the return air outlet, and the other is the outlet through the hole in the rear duct wall. When the air volume is constant, that is, Q(m... 3 / h) is a quantitative value. When the rear cylinder orifice closes, it's equivalent to a reduction in the cross-sectional area of ​​the air outlet, meaning R becomes smaller, and F(m²) will decrease accordingly. To ensure Q(m²) 3 If the value of / h remains constant, the wind speed V (m / s) will increase. Increased wind speed can better disperse clothing, allowing it to spread out more smoothly. At the same time, reducing the cross-sectional area of ​​the air outlet allows the air to stay inside the duct for a longer time, enhancing the agitation of the airflow and also helping to improve the smoothness of the clothing.

[0057] When drying clothes of different materials, each type of fabric has a specific optimal moisture content range for wrinkle removal. During the drying process, when different clothes reach the optimal moisture content range for wrinkle removal, the holes in the back wall of the drying drum close at the corresponding time period to open the optimal wrinkle removal stage for the clothes.

[0058] Table 1

[0059] Nursing procedure model Optimal moisture content for wrinkle reduction cotton and linen 10％-26％ synthetic fibers 20％-28％ wool 10％-21％ silk 10％-35％ shirt 15％-23％ suit 5％-6％ mink 10％-15％

[0060] Table 1 shows the optimal moisture content for wrinkle removal in different fabrics. Each material—cotton, linen, synthetic fibers, wool, silk, shirts, suits, and mink—has its own unique properties. Cotton and linen absorb water easily and are relatively thick. Synthetic fibers do not absorb water easily and lose moisture quickly. Wool is difficult to absorb and lose water, requiring a longer time. Silk is relatively thin and requires a higher moisture content to achieve good spreadability and smoothness. Shirts have a larger volume and also require a higher moisture content for better wrinkle removal. Suits have a stiffer overall shape and are less absorbent, but a lower moisture content can achieve good wrinkle removal. Mink requires a moderate moisture content to smooth the fur, maintain its shine, and improve smoothness. Therefore, overall, and based on the results of relevant experiments, the recommended moisture content range for wrinkle removal is 10%-26% for cotton and linen, 20%-28% for synthetic fiber, 10%-21% for wool, 10%-35% for silk, 15%-23% for shirts, 5%-6% for suits, and 10%-15% for mink.

[0061] Due to the characteristics of different fabric materials, the rate of water loss during drying varies, and the time required to reach the optimal moisture content range for wrinkle removal also differs. Once the moisture content of each type of garment reaches the optimal range for wrinkle removal during drying, the holes in the rear drum wall can be closed to initiate the optimal wrinkle removal stage.

[0062] In existing technologies, the drying method is not adjusted according to the optimal moisture content for wrinkle removal based on different fabric materials. In this invention, each fabric material has an optimal moisture content for wrinkle removal. By judging whether the moisture content has reached the optimal level for wrinkle removal, the opening and closing of the holes in the rear wall of the washing drum is controlled, thereby changing the airflow state and controlling the different movement states of the clothes inside the drum. This improves the smoothness of the dried clothes for different fabric materials.

[0063] To further improve the drying effect, the control device is also used to control the rotation-stop ratio of the drum at different drying stages. Specifically, in the rapid dehumidification stage, the drum is controlled to operate at a first rotation-stop ratio, and in the wrinkle removal stage, it is controlled to operate at a second rotation-stop ratio; the first rotation-stop ratio is less than the second. The first stage is the rapid dehumidification stage, where the pores in the rear drum wall remain open. The second stage is the optimal wrinkle removal stage, where the pores in the rear drum wall remain closed. In the first stage, due to the high moisture content and heavy load of the clothes, to prevent significant wear, the stopping time in the drum's rotation-stop rhythm is controlled to be no less than 12.5% ​​but no more than 50% of the rotation time. In the second stage, due to increased airflow speed and stronger airflow agitation, the drum rotates continuously to achieve the ideal spreading state of the clothes and improve flatness. Typically, the stopping time in the rotation-stop rhythm does not exceed 1.6% of the rotation time, and during this period, the moisture content is relatively low, minimizing wear on the clothes.

[0064] The aforementioned washing machine is highly intelligent and can effectively improve the movement of clothes inside the drum, ensuring that clothes of different materials can achieve good flatness after drying.

[0065] Example 2

[0066] Based on the washing machine provided in Embodiment 1 above, a preferred embodiment 2 of the present invention further provides a washing machine control method. This control method can be directly applied to the washing machine in Embodiment 1 above or other washing machines with controllable opening and closing of holes on the rear drum wall. Specifically, Figure 8 An optional flowchart of the method is shown, such as Figure 8 As shown, the method includes the following steps S802-S806:

[0067] S802: Obtain the moisture content of clothes during the drying process of the washing machine;

[0068] S804: Determine the drying stage based on the moisture content;

[0069] S806: Controls the opening and closing of the holes on the rear drum wall of the washing machine according to the drying stage.

[0070] In the above embodiment, a washing machine with intelligent drying function is provided. The rear wall of the washing machine drum has holes, and a baffle and a drive device are also provided on the rear side of the rear drum wall. These devices can control the opening and closing of the holes, adjusting their position according to the needs of different drying stages. When the holes are open, airflow is increased during the drying process, improving heat exchange efficiency and allowing clothes to dry more quickly. When the holes are closed, the air blown from the air outlet stays inside the drum longer, increasing the agitation force and resulting in better garment smoothness. The control of the holes in these two drying processes works in tandem, efficiently drying clothes while achieving good smoothness, effectively solving the problem of poor garment smoothness caused by the single drying method in existing technologies.

[0071] The drying stage includes at least two phases: a rapid dehumidification phase and a wrinkle-removing phase. Determining the drying stage based on moisture content includes: identifying the appropriate moisture content range for wrinkle removal within the washing machine; defining the drying stage as a rapid dehumidification phase when the moisture content exceeds the maximum value of the wrinkle-removing moisture content range; and defining the drying stage as a wrinkle-removing phase when the moisture content falls within the wrinkle-removing moisture content range. Preferably, defining the drying stage as a wrinkle-removing phase when the moisture content falls within the wrinkle-removing moisture content range includes: checking the moisture content at preset time intervals to ensure it falls within the wrinkle-removing moisture content range; and defining the drying stage as a wrinkle-removing phase when the number of times the moisture content falls within the wrinkle-removing moisture content range reaches a preset number. If the appropriate wrinkle-removing moisture content range has been reached k times or more, the fabric is ready for the wrinkle-removing drying phase. This method aims to avoid random errors and uneven drying, ensuring that the entire garment reaches the optimal wrinkle-removing moisture content range before proceeding with the wrinkle-removing phase.

[0072] In a preferred embodiment of the present invention, determining the wrinkle-removing moisture content range corresponding to the clothes in the washing machine includes: obtaining a pre-stored correspondence table between clothes of different materials and wrinkle-removing moisture content ranges, as shown in Table 1; determining the material of the clothes in the washing machine, which can be the material of the clothes set by the user, the material of the clothes detected automatically, or the material determined by information extracted from the washing mode; and then determining the wrinkle-removing moisture content range corresponding to the clothes in the washing machine in the correspondence table according to the material of the clothes in the washing machine.

[0073] To further improve drying performance, the system also includes controlling the drum's rotation-to-stop ratio according to the drying stage. Specifically, during the rapid dehumidification stage, the drum operates at a first rotation-to-stop ratio, and during the wrinkle-removing stage, it operates at a second rotation-to-stop ratio; the first rotation-to-stop ratio is less than the second. The first stage is the rapid dehumidification stage, where the openings in the rear drum wall remain open. The second stage is the optimal wrinkle-removing stage, where the openings in the rear drum wall remain closed. In the first stage, due to the high moisture content and heavy load of the clothes, to prevent significant wear, the stopping time in the drum's rotation-to-stop rhythm is controlled to be no less than 12.5% ​​but no more than 50% of the rotation time. In the second stage, due to increased airflow speed and stronger airflow, the drum rotates continuously to achieve the ideal tossing state of the clothes and improve flatness. Typically, the stopping time in the rotation-to-stop rhythm does not exceed 1.6% of the rotation time, and during this period, the moisture content is relatively low, minimizing wear on the clothes.

[0074] In a preferred embodiment 1 of the present invention, another washing machine control method is also provided, specifically... Figure 9 An optional flowchart of the method is shown, such as Figure 9 As shown, the method includes the following steps S901-S914:

[0075] S901: Power on;

[0076] S902: Select the appropriate drying program for the clothes;

[0077] S903: Keep the first hole open; select the appropriate drying program for different fabrics or materials, at which point the holes in the rear drum are open;

[0078] S904: Start the first stage of drying; Next, the first drying stage, which is the rapid dehumidification stage, begins. Keeping the rear drum opening open can increase the efficiency of airflow and heat exchange to reduce the moisture content of the clothes as quickly as possible.

[0079] S905: Use a lower rotation-to-stop ratio; This stage uses a lower rotation-to-stop ratio to prevent greater wear and tear on clothing;

[0080] S906: Continuous monitoring of moisture content; During this process, the washing machine will continuously monitor the moisture content of the clothes inside the drum.

[0081] S907: Whether the moisture content has reached the wrinkle-removing moisture content range; Determine whether it has reached the optimal wrinkle-removing moisture content range for this type of fabric material. Multiple determinations are required. Specifically, moisture content testing and determination of whether it has reached the wrinkle-removing moisture content range can be performed at preset intervals.

[0082] S908: Has the number of times reached k been continuously reached? If so, proceed to step S909; otherwise, proceed to step S907.

[0083] S909: Begin the second stage of drying; if the appropriate moisture content for wrinkle removal has been reached k times or more, then the garment fabric is ready to begin the second stage of drying. The purpose of this method is mainly to prevent accidental errors and uneven drying, ensuring that the entire garment fabric has reached the optimal moisture content for wrinkle removal before proceeding to the second stage of drying.

[0084] S910: Close the first hole; after the second drying stage begins, the first hole on the rear drum wall remains closed, and the wrinkle removal and drying stage of the clothes begins;

[0085] S911: Uses a high rotation-to-stop ratio; at this time, a higher rotation-to-stop ratio is used so that the inner drum rotates continuously, resulting in a better throwing state for the clothes and allowing them to fully unfold.

[0086] S912: Determine if drying is complete; Finally, identify the moisture content of the clothes to determine if the clothes are fully dried. If so, proceed to step S913; otherwise, proceed to step S909.

[0087] S913: Drying complete;

[0088] S914: Power off. If the product is not yet dry, this stage will continue; if the product is already dry, the entire drying process will end, and the machine will be powered off.

[0089] Example 3

[0090] Based on the washing machine control method provided in Embodiment 2 above, in a preferred embodiment 3 of the present invention, a storage medium containing computer-executable instructions is also provided, which, when executed by a computer processor, are used to execute the washing machine control method as described above.

[0091] In the above embodiment, a washing machine with intelligent drying function is provided. The rear wall of the washing machine drum has holes, and a baffle and a drive device are also provided on the rear side of the rear drum wall. These devices can control the opening and closing of the holes, adjusting their position according to the needs of different drying stages. When the holes are open, airflow is increased during the drying process, improving heat exchange efficiency and allowing clothes to dry more quickly. When the holes are closed, the air blown from the air outlet stays inside the drum longer, increasing the agitation force and resulting in better garment smoothness. The control of the holes in these two drying processes works in tandem, efficiently drying clothes while achieving good smoothness, effectively solving the problem of poor garment smoothness caused by the single drying method in existing technologies.

[0092] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not invented by the invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0093] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A washing machine, wherein the washing machine is a washer-dryer combo, and a first hole is provided on the rear wall of the washing machine drum, characterized in that, The washing machine also includes: A baffle is provided on the rear side of the rear cylinder wall, and the baffle is provided with a second hole corresponding to the first hole; A driving device, connected to the baffle, is used to drive the baffle to rotate and control the opening or closing of the first hole; A control device, connected to the drive device, is used to determine the drying stage of the washing machine and control the opening and closing of the first hole according to the drying stage; The drying stage includes at least a rapid dehumidification stage and a wrinkle removal stage, wherein the control device is used to control the opening of the first hole during the rapid dehumidification stage and to control the closing of the first hole during the wrinkle removal stage.

2. The washing machine according to claim 1, characterized in that, Also includes: A humidity detector is used to detect the moisture content of the underwear in the washing machine; The control device is connected to the humidity detector and is also used to determine the drying stage based on the moisture content.

3. The washing machine according to claim 2, characterized in that, The control device stores a table showing the correspondence between clothing of different materials and the wrinkle-removing moisture content range. The control device is used to determine the drying stage as the rapid dehumidification stage when the moisture content is greater than the maximum value of the wrinkle-removing moisture content range, and to determine the drying stage as the wrinkle removal stage when the moisture content is within the wrinkle-removing moisture content range.

4. The washing machine according to claim 1, characterized in that, The control device is also used to control the rotation-to-stop ratio of the rotating drum, wherein the rotating drum is controlled to operate according to a first rotation-to-stop ratio during the rapid dehumidification stage, and the rotating drum is controlled to operate according to a second rotation-to-stop ratio during the wrinkle removal stage; the first rotation-to-stop ratio is less than the second rotation-to-stop ratio.

5. The washing machine according to claim 1, characterized in that, The driving device includes: a driving shaft connected to the baffle; and a driving motor connected to the driving shaft for driving the driving shaft to rotate.

6. A washing machine control method, applied to the washing machine as described in any one of claims 1-5, characterized in that, The method includes: During the drying process of the washing machine, the moisture content of the clothes is obtained; The drying stage is determined based on the moisture content. The opening and closing of the holes on the rear drum wall of the washing machine drum are controlled according to the drying stage.

7. The method according to claim 6, characterized in that, The drying stage includes at least a rapid dehumidification stage and a wrinkle removal stage; the drying stage is determined based on the moisture content, including: Determine the wrinkle-removing moisture content range for the clothes inside the washing machine; When the moisture content is greater than the maximum value of the wrinkle-removing moisture content range, the drying stage is determined to be the rapid dehumidification stage; When the moisture content is within the wrinkle-removing moisture content range, the drying stage is determined to be the wrinkle-removing stage.

8. The method according to claim 7, characterized in that, Determining the wrinkle-removing moisture content range for the clothes inside the washing machine includes: Obtain a pre-stored table showing the correspondence between different clothing materials and wrinkle-removing moisture content ranges; Determine the material of the garment in the washing machine; The wrinkle-removing moisture content range of the clothes in the washing machine is determined according to the corresponding relationship table based on the material of the clothes in the washing machine.

9. The method according to claim 7, characterized in that, Also includes: The rotation-stop ratio of the washing machine drum is controlled according to the drying stage; wherein, in the rapid dehumidification stage, the drum is controlled to operate according to a first rotation-stop ratio, and in the wrinkle removal stage, the drum is controlled to operate according to a second rotation-stop ratio; the first rotation-stop ratio is less than the second rotation-stop ratio.

10. The method according to claim 7, characterized in that, When the moisture content is within the wrinkle-removing moisture content range, the drying stage is determined to be the wrinkle-removing stage, including: At preset time intervals, the moisture content is checked to see if it falls within the wrinkle-reducing moisture content range. When the number of times the moisture content is within the wrinkle-removing moisture content range is determined by the test results reaches a preset number, the drying stage is determined to be the wrinkle-removing stage.

11. A storage medium containing computer-executable instructions, characterized in that, The computer-executable instructions, when executed by a computer processor, are used to perform the washing machine control method as described in any one of claims 6 to 10.

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