Clothing handling apparatus including drying process and its control method

Abstract

This invention discloses a control method for a garment handling apparatus including a drying program, comprising running a lint cleaning process at least once during the operation of the drying program and / or before and after the drying program, wherein the lint cleaning process includes: rotating the inner tub at a first rotational speed, and keeping a rinsing device in an open state during the rotation of the inner tub at the first rotational speed. According to an embodiment of the invention, when the rinsing device is open, the inner tub rotates at the first rotational speed, and the rotating inner tub makes it difficult for rinsing water to enter; even if rinsing water splashes onto the outer surface of the inner tub's peripheral wall, it will be thrown out due to centrifugal force, thus making it difficult for water to enter the inner tub. This invention also relates to a garment handling apparatus including a drying program, comprising a control device capable of performing this control method.

Description

[Technical Field]

[0001] This invention relates to a garment handling apparatus including a drying process, comprising an outer tub and an inner tub rotatably disposed within the outer tub. The inner tub includes a peripheral wall and an end wall, with at least a plurality of through holes on the peripheral wall. A process air passage is integrally formed with or connected to the wall of the outer tub, and the wall of the outer tub includes a passage inlet. A rinsing device supplies rinsing water to the process air passage, and the position of the passage inlet allows the rinsing water to enter the outer tub through the passage inlet. This invention also relates to a control method for the garment handling apparatus. [Background Technology]

[0002] Clothing handling devices that include a drying process typically comprise an outer tub and an inner tub rotatably disposed within the outer tub. The inner tub includes peripheral walls and end walls, with at least a number of through holes on its peripheral walls. The outer tub is connected to a process air passage. Air in the outer tub enters the process air passage, is heated there, and then returns to the outer tub. The clothes are heated by the hot air in the rotating inner tub and gradually dried. During this process, a large amount of lint is shed from the clothes. This lint is carried by the airflow into the process air passage and adheres to the walls of the process air passage.

[0003] Lint adhering to the walls of the air duct needs to be cleaned promptly to prevent excessive lint buildup and reduced ventilation. Therefore, a rinsing device is installed to supply rinsing water into the air duct. The rinsing water typically has a high flow rate and volume, and after rinsing the air duct, it enters the outer tub. Because the inner tub is located inside the outer tub, and its peripheral walls have through-holes and are relatively close to the outer tub wall, rinsing water can easily enter the inner tub due to gravity or splashing. This can wet clothes during or after drying, or increase the moisture content of clothes waiting to be dried. These issues can lead to prolonged drying time or water spots on dried clothes, all of which are very detrimental.

[0004] Some garment processing devices have filters in their process air passages to capture lint from the air coming from the outer drum. The lint accumulated on the filters also needs to be rinsed off by the rinsing device. The rinse water, after passing through the filter, enters the outer drum, which can easily wet the clothes in the inner drum located inside the outer drum, or increase the moisture content of the clothes waiting to be dried.

[0005] For garment handling devices with washing programs, activating the rinsing device during the washing cycle can avoid the above disadvantages. However, if the garment handling device does not run a washing program for a long time, lint will accumulate in large quantities, or the lint that has been adhering for a long time will be difficult to rinse off. This is also very disadvantageous. [Summary of the Invention]

[0006] One object of the present invention is to improve a garment handling apparatus that includes a drying process to prevent lint from entering the inner drum during the rinsing process.

[0007] Embodiments of the present invention include a control method for a garment handling apparatus comprising a drying program, wherein the garment handling apparatus comprises an outer tub and an inner tub rotatably disposed within the outer tub, the inner tub comprising a peripheral wall and an end wall, at least the peripheral wall having a plurality of through holes, the outer tub having a process air passage integrally connected to or comprising a passage inlet on the wall of the outer tub, a rinsing device supplying rinsing water to the process air passage, and the position of the passage inlet such that the rinsing water enters the outer tub through the passage inlet, the control method comprising: performing a lint cleaning process at least once during the operation of the drying program, and / or before and after the drying program, wherein the lint cleaning process comprises: rotating the inner tub at a first rotational speed, and keeping the rinsing device in an open state during the rotation of the inner tub at the first rotational speed.

[0008] The inlet channel can be considered part of the process air channel. When the rinsing device is turned on, rinsing water enters the outer tub from the inlet channel. Alternatively, when the rinsing water is directly at or near the inlet channel, it easily splashes onto the inner tub and enters through the through-holes in the inner tub's peripheral wall, wetting the clothes. However, according to an embodiment of the present invention, when the rinsing device is turned on, the inner tub rotates at a first rotational speed. The rotating inner tub makes it difficult for rinsing water to enter. Even if rinsing water splashes onto the outer surface of the inner tub's peripheral wall, it will be thrown out due to centrifugal force, thus preventing it from entering the inner tub. The rotation of the inner tub creates an air ring in the gap between the inner tub's peripheral wall and the outer tub, which also prevents rinsing water from entering the inner tub. Therefore, the control method described above can effectively reduce the amount of rinsing water entering the inner tub, thus ensuring that drying efficiency and effect are not affected.

[0009] In some embodiments, the first rotational speed is set to keep the clothes in the inner tub in close contact with the inner tub wall. As a result, the centrifugal acceleration at the inner tub wall is greater, making it less likely for rinsing water to approach the inner tub, or water droplets that reach the inner tub wall are quickly flung off by centrifugal force and eventually flow along the inner wall of the outer tub to the bottom of the outer tub.

[0010] In some embodiments, the process air passage is provided with a filter screen to isolate lint from the outer barrel, and a rinsing device supplies rinsing water to the filter screen.

[0011] In some embodiments, the channel inlet is at least partially close to the peripheral wall of the inner tub. In particular, for example, the channel inlet is at least partially facing the peripheral wall. With such a channel inlet configuration, rotating the inner tub at a first rotational speed during lint cleaning can significantly reduce the tendency for rinsing water to enter the inner tub.

[0012] In some embodiments, the inner tub's rotation axis is horizontal or inclined, and the channel inlet is at least partially located above the inner tub's peripheral wall. The first rotational speed is set such that the centrifugal acceleration at the inner tub's peripheral wall position is greater than the acceleration due to gravity. The area above the inner tub's peripheral wall can be a partial area above the peripheral wall. This prevents the rinsing water from falling into the inner tub under gravity. Before reaching the inner tub's peripheral wall, the rinsing water is propelled away from the inner tub by the air ring generated by the inner tub's rotation and moves towards the inner wall of the outer tub, eventually flowing along the inner wall of the outer tub to the bottom. Even if a small portion reaches the inner tub's peripheral wall, it is thrown onto the inner wall of the outer tub due to centrifugal acceleration and flows along the inner wall of the outer tub to the bottom.

[0013] In some embodiments, the process air passage is equipped with a fan that directs air from the outer tub into the process air passage; this fan remains off during lint cleaning. Turning the fan off prevents rinse water from being drawn downstream of the process air passage by the fan-driven airflow. Keeping the fan off during lint cleaning is particularly necessary and advantageous when the fan is close to the passage inlet.

[0014] The first rotational speed mentioned above can be constant or variable. For example, in some embodiments, the inner tub rotational speed rises to a specific speed and is maintained at that speed for a period of time; the first rotational speed is that specific speed during the maintenance phase. In some embodiments, the inner tub rotational speed rises and then falls; during this period, there may be a time period of speed maintenance or a variable rotational speed; the first rotational speed is a non-constant rotational speed within a higher range of the rotational speed curve.

[0015] In some embodiments, the rinsing device is activated for a first set time while the inner tub rotates at the first speed, and after the rinsing device is deactivated, the inner tub continues to rotate at the first speed for a second set time. This further ensures that any water remaining in the process air passage continues to be carried by the rotation of the inner tub to the inner wall of the outer tub and flows along the inner wall of the outer tub to the bottom of the outer tub, rather than dripping into the inner tub.

[0016] In some implementations, during the operation of the rinsing device, a drain pump connected to the bottom of the outer tub is continuously or activated as needed to ensure that the water level of the rinsing water entering the outer tub does not exceed the bottom of the inner tub's perimeter wall. One embodiment where the drain pump is activated as needed involves monitoring the water volume or level at the bottom of the outer tub during the rinsing device's operation, and activating the drain pump to drain water before the water level reaches the bottom of the inner tub's perimeter wall.

[0017] In some implementations, the lint cleaning process is automatically triggered when the drying program is activated. For example, after a user selects and starts the clothes drying program, the lint cleaning process is run during the operation of the clothes drying program, and / or before and after the drying program.

[0018] An optional implementation also includes the option to run the lint cleaning process independently as a program option. For example, when a decrease in airflow in the process air passage is detected, or when a filter blockage is detected, or when the fan ventilation in the process air passage is reduced, the user or after-sales service personnel can run the lint cleaning process independently.

[0019] In some embodiments, the drying process sequentially includes a thermal dehydration process, a main drying process, and a cooling process, with the lint cleaning process operating during the thermal dehydration process. The thermal dehydration process typically involves high-speed rotation of the inner drum; operating the lint cleaning process during this period can save program time and reduce energy consumption.

[0020] In some embodiments, the lint cleaning process includes activating an air heating device. The air heating device may be located in the process air passage.

[0021] The drying process sequentially includes a hot dehydration process, a main drying process, and a cooling process. The lint cleaning process can also be run during the cooling process. At this point, nearing the end of the drying process, running the lint cleaning process during cooling can promptly remove the lint accumulated during this drying process. At this stage, the lint has just adhered to the inner wall of the process air passage and / or the filter screen, and it is relatively easy to wash away.

[0022] During the lint cleaning process in the cooling phase, an initial rotation speed greater than 600 rpm yields optimal results. This is because the resulting centrifugal acceleration is significant, ensuring that only a very small amount of rinsing water enters the inner drum, resulting in minimal impact on the dried clothes. In principle, a higher inner drum rotation speed leads to less rinsing water entering the drum. However, within the motor's load capacity and considering energy conservation, an initial rotation speed greater than 600 rpm is generally sufficient for most drum sizes, keeping the amount of rinsing water entering the drum within acceptable limits.

[0023] In some implementations, multiple lint cleaning processes are run at intervals during the drying process and / or before and after the drying process.

[0024] In most cases, a first rotational speed greater than 200 rpm is acceptable. Especially when the lint cleaning process is running before or in the early stages of the drying process, even if a small amount of rinsing water still enters the inner tub, most of the rinsing water will be blocked due to the rotation of the inner tub.

[0025] Embodiments of the present invention also include a garment handling apparatus comprising a drying process, comprising an outer tub and an inner tub rotatably disposed within the outer tub, the inner tub comprising a peripheral wall and an end wall, at least the peripheral wall having a plurality of through holes, the outer tub having a process air passage connected to or integrally provided on its wall, the outer tub having a passage inlet on its wall, a rinsing device supplying rinsing water to the process air passage, and the position of the passage inlet such that the rinsing water enters the outer tub through the passage inlet, and further comprising a control device configured to perform a control method capable of executing any combination of the various embodiments described above.

[0026] In some embodiments, the process air passage is provided with a filter screen to isolate lint from the outer barrel, and a rinsing device is used to supply rinsing water to the filter screen.

[0027] In some embodiments, the filter screen is positioned close to the channel inlet. In these embodiments, it is highly advantageous for the control device to be configured to perform the control method described above. This is because, in this case, the filter screen is very close to the inner tub, and the rinsing water for rinsing the filter screen can easily enter the inner tub.

[0028] In some embodiments, the filter screen is disposed on the wall of the outer barrel.

[0029] In some embodiments, the filter screen is flush with the inner surface of the wall of the outer barrel.

[0030] In some embodiments, the channel inlet is at least partially close to the peripheral wall of the inner tub. In this case, at least some of the rinsing water can easily enter the inner tub through the through-hole on the peripheral wall, and under the control of the control device, the rotation of the inner tub during the lint cleaning process causes the peripheral wall to have centrifugal acceleration, and the peripheral wall also drives the surrounding airflow to rotate in a ring, making it difficult for rinsing water to enter the inner tub.

[0031] In some embodiments, the inner tub's pivot is horizontal or inclined, and the channel inlet is at least partially located above the inner tub's peripheral wall. The first rotational speed is set such that the centrifugal acceleration at the peripheral wall position is greater than the acceleration due to gravity. In this case, at least a portion of the rinsing water can easily fall vertically into the inner tub from the through-hole on the peripheral wall under gravity, even without splashing. However, under the control of the control device, the rotation of the inner tub during lint cleaning causes centrifugal acceleration at the peripheral wall position, and the peripheral wall also drives the surrounding airflow to rotate in a ring, making it difficult for rinsing water to enter the inner tub.

[0032] In some embodiments, the inner tub includes a first side and a second side divided by a vertical plane passing through the pivot, with the channel inlet located above the first side. The control device is configured such that, during lint cleaning, the inner tub rotates in a direction that causes the top of the inner tub to rotate towards the first side. This arrangement causes the rinsing water to move downwards under the influence of centrifugal force and the air ring generated by the rotation of the inner tub, rather than being thrown upwards. With this arrangement, a lower rotational speed is required to effectively prevent rinsing water from entering the inner tub. Conversely, if the rotation direction of the inner tub is reversed, a higher rotational speed is required to prevent the rinsing water from falling into the inner tub after rising upwards.

[0033] The above embodiments can be combined arbitrarily.

[0034] The following will illustrate some specific embodiments of the present invention with reference to the accompanying drawings. [Attached Image Description]

[0035] Figure 1 This is a partial front view of the first embodiment of the garment handling device;

[0036] Figure 2 for Figure 1 A side view of the garment processing device;

[0037] Figure 3 A side view of a second embodiment of the garment handling apparatus;

[0038] Figure 4 A schematic diagram showing the connection of the electrical components of the garment handling device;

[0039] Figure 5 A flowchart of the lint cleaning process;

[0040] Figure 6A This is a diagram illustrating the working state of each electrical component during the lint cleaning process in the first embodiment of the control method of the present invention.

[0041] Figure 6B This is a diagram showing the working state of each electrical component during the lint cleaning process in a second embodiment of the control method of the present invention.

[0042] In this context, "first embodiment" and "second embodiment" are not specific, but rather any two of a multitude of possible embodiments. "First" and "second" are used only to distinguish between the two.

Detailed Implementation Methods

[0043] like Figure 1 and Figure 2As shown, the garment handling device 1 includes an outer tub 2 and an inner tub 4 rotatably disposed within the outer tub 2 by a motor 3. The inner tub 4 includes a peripheral wall 41 and an end wall 42. At least the peripheral wall 41 is provided with a plurality of through holes 43 to allow water and air to circulate between the inner tub 4 and the outer tub 2.

[0044] The outer tub 2 has a process air passage 5 integrally or connected to its wall 20. The outer tub wall 20 includes a peripheral wall 21 and an end wall 22. Figure 1 and Figure 2 In the first embodiment shown, the process air passage 5 is connected to the outer barrel peripheral wall 21. Figure 3 In the second embodiment shown, the process air channel 5 is connected to the outer barrel end wall 22.

[0045] The outer tub walls 21 and 22 include channel inlets 51. The outlet 52 of the process air channel 5 is connected to a sealing ring 6 located on the opening 23 of the outer tub 2, thus enabling fluid circulation between the process air channel 5 and the outer tub 2. Following the airflow direction, a fan 7 and an air heating device 8 are sequentially arranged in the process air channel 5. In the drying program controlled by the control device 10, after the fan 7 is activated, air enters the process air channel 5 from the outer tub 2 through the channel inlet 51, and then returns to the outer tub 2 after being heated by the air heating device 8. Because the inner tub 4 and the outer tub 2 are fluidly connected, the clothes are heated by hot air in the inner tub 4, and the moisture evaporates, gradually drying the clothes.

[0046] In most cases, during the drying process, a condenser will function to cause the evaporated water to recondense into liquid water. The condenser can be of any known form.

[0047] To rinse away the lint that adheres to the process air passage 5 during the drying process, the process air passage 5 is connected to a rinsing device 9. The rinsing device 9 includes a water pipe 91 and a water valve 92 controlled by a control device 10 located on the water pipe 91.

[0048] To better isolate lint from the outer tub 2, a filter 11 is provided in the process air passage 5. A rinsing device 9 supplies rinsing water to the process air passage 5, which washes against the filter 11. In some embodiments, the filter 11 is positioned near the passage inlet 51. Even for example... Figures 1 to 3 As shown, the filter screen 11 is disposed on the wall 20 of the outer barrel 2, and the filter screen 11 is flush with the inner surface of the wall 20 of the outer barrel 2.

[0049] Although Figures 1 to 3 In the embodiments shown, a filter 11 is provided in the process air passage 5, but in other embodiments, it is possible that no filter is provided in the process air passage. In this case, the flushing device directly flushes the inner wall 53 of the process air passage.

[0050] The position of the channel inlet 51 is set lower than that of the process air channel 5, so that the flushing water enters the outer tank 2 through the channel inlet 51.

[0051] The passage entrance 51 is at least partially close to the peripheral wall 41 of the inner barrel 4. For example, in Figure 1 and Figure 2 In the first embodiment shown, the channel entrance 51 faces the peripheral wall 41 of the inner barrel 4. Figure 3 In the second embodiment shown, the upper part of the channel inlet 51 is close to the peripheral wall 41 of the inner tub 4. This is applicable to both top-loading and front-loading washing machines.

[0052] like Figure 4 As shown, the control device 10 is electrically connected to the air heating device 8, fan 7, flushing water valve 92, motor 3 that drives the inner tub 4 to rotate, and drain pump 12 connected to the bottom of the outer tub 2, thereby controlling the start-up, shutdown, and operating power and rhythm of these electrical components.

[0053] The control device 10 is configured to run a lint cleaning process at least once during the operation of the drying program and / or before and after the drying program.

[0054] like Figure 5 As shown, during the lint cleaning process, the drive motor 2 rotates the inner drum 4 and increases the speed. During this process, it ensures that the clothes are balanced in the inner drum 4; otherwise, it slows down, shakes them loose, and then speeds up again.

[0055] After the inner tub 4 reaches the first rotational speed S1, the flushing device 9 is activated. Activating the flushing device mainly refers to opening the water valve 92 to supply a larger unit flow rate of flushing water to the process air passage 5 through the water pipe 91. The flushing device 9 remains activated for a first set time T1 and then closes. During this period, the inner tub's rotational speed remains at the first rotational speed S1.

[0056] After the rinsing device 9 is turned off, the inner tub 4 continues to rotate at the first speed S1 for a second set time T2, for example, for 30 seconds. Then the speed of the inner tub decreases, ending the lint cleaning process.

[0057] The first rotational speed S1 can be constant or variable. For example, in Figure 6A In the illustrated embodiment, it can be seen from the rotational speed curve L1 that the inner tub's rotational speed rises to a specific speed s0 and then remains at that speed for a period of time. The first rotational speed S1 is the specific speed s0 during the maintenance phase. In the example shown... Figure 6B In the illustrated embodiment, it can be seen from the rotation speed curve L2 that after the inner tub rotation speed rises to the first value s1, the flushing device 9 is activated. The inner tub rotation speed continues to rise to the second value s2 and then decreases. The first rotation speed S1 is as follows: Figure 6BThe speed curve shown represents a non-constant speed within a higher range—for example, between the first value s1 and the peak value s2.

[0058] In theory, a higher initial rotation speed S1 is more effective in preventing flushing water from entering the inner tub 4. Considering energy consumption and system load capacity, an initial rotation speed S1 greater than 200 revolutions per minute is acceptable.

[0059] In some embodiments, the first rotational speed S1 is set to make the clothes in the inner tub 4 stick tightly to the inner tub wall 41. As a result, the centrifugal acceleration at the inner tub wall 41 is greater, making it less likely for the rinsing water to approach the inner tub 4, or the water droplets that reach the inner tub wall 41 will be quickly flung out by centrifugal force and eventually flow along the outer tub wall 20 to the bottom of the outer tub 2.

[0060] The first rotational speed S1 can be set according to the actual situation.

[0061] For example Figures 1 to 3 The inner tub 4 shown has a horizontally or inclined rotating shaft 40 for the garment handling device 1, with the channel inlet 51 at least partially located above the peripheral wall 41 of the inner tub 4. Here, "above" includes... Figure 1 and Figure 2 The vertical upper part of the projected area of ​​the inner barrel peripheral wall 41 shown also refers to, as Figure 3 The position shown is higher than the inner barrel's peripheral wall 41. Regardless of the location of the passage entrance 51... Figure 1 and Figure 2 As shown or as Figure 3 As shown, rinsing water may fall directly onto the inner tub's peripheral wall 41 through the channel inlet 51, and then enter the inner tub through the through-hole 43 on the inner tub's peripheral wall 41 to wet the clothes. Therefore, the first rotational speed S1 can be set such that the centrifugal acceleration at the position of the inner tub's peripheral wall 41 is greater than the acceleration due to gravity. The required first rotational speed S1 of the inner tub can be calculated.

[0062] In such Figure 1 In the illustrated embodiment, the inner tub 4 includes a first side 401 and a second side 402 divided by a vertical plane 13 passing through a pivot 40. A channel inlet 51 is located above the first side 401. In this case, the control device 10 is configured such that, during lint cleaning, the inner tub 4 rotates in a direction that causes the top of the inner tub 4 to rotate toward the first side 401, as shown in the diagram. Figure 1 As indicated by arrow A, this configuration causes the rinsing water to move downwards under the influence of centrifugal force and the air ring B generated by the rotation of the inner tub 4, rather than being thrown upwards. With this configuration, the inner tub 4 requires a lower rotational speed to effectively prevent rinsing water from entering it. Conversely, if the rotation direction of the inner tub were reversed, a higher rotational speed would be needed to prevent the rinsing water from falling into the inner tub after rising upwards.

[0063] like Figure 6A and Figure 6B As shown, fan 7 can be kept off during lint cleaning. Keeping fan 7 off prevents rinse water from being drawn downstream of the process air passage 5 by the airflow driven by fan 7. This is especially necessary and advantageous when fan 7 is close to the passage inlet 51. Fan 7 can be turned on as needed after the rinse valve 92 is closed and a period of time has elapsed.

[0064] During the rinsing process, the drain pump 12 connected to the bottom of the outer tub 2 is continuously activated or activated as needed to ensure that the water level of the rinsing water entering the outer tub 2 is not higher than the bottom of the inner tub's peripheral wall 41. For example, in... Figure 6A and Figure 6B In the embodiment shown, the drain pump 12 is turned on after the flushing valve 92 is opened.

[0065] The lint removal process can be integrated into the drying program, or it can be automatically triggered when the drying program is started. Thus, when the user selects the drying program and starts the machine, the lint removal process can run automatically during the drying program and / or before or after the drying program.

[0066] In some embodiments, the lint cleaning process can be selected as a program option and run independently. For example, when a user is concerned about lint clogging, or when the machine indicates lint clogging, or when a maintenance personnel deem it necessary, the lint cleaning process option can be selected on the display screen or via knobs, buttons, etc., and then started.

[0067] The drying process sequentially includes a hot dehydration process, a main drying process, and a cooling process. During the hot dehydration process, the inner drum typically rotates at a high speed. Therefore, in some embodiments, the lint cleaning process can be carried out during the hot dehydration process. During this lint cleaning process, the air heating device 8 located in the process air passage 5 can be turned on, and the fan 7 can also be turned on. In this case, it is best to ensure that the rinsing device 9, especially the outlet of the rinsing device, is at a safe distance from the fan, within which the rinsing water will not be drawn into the downstream of the process air passage 5 by the fan, or as little as possible.

[0068] In some embodiments, the lint cleaning process can be performed during the cooling process. Since the garments are nearly dry at this point, it is important to minimize or avoid water entering the inner drum. Therefore, for the lint cleaning process combined with the cooling process, the first rotational speed is higher than that required for other stages of the drying program. For example, the first rotational speed can be set to greater than 600 rpm.

[0069] In some embodiments, the process may further include running multiple lint cleaning processes at intervals during and / or before and after the drying process.

[0070] The various specific embodiments described above and shown in the accompanying drawings are for illustrative purposes only. Any modifications made by those skilled in the art within the scope of the basic technical concept of this invention are within the protection scope of this invention.

Claims

1. A control method of a laundry treatment apparatus comprising a drying cycle, wherein the laundry treatment apparatus comprises an outer tub (2) and an inner tub (4) rotatably arranged inside the outer tub, the inner tub comprising a peripheral wall (41) and an end wall (42), at least the peripheral wall being provided with a plurality of through holes (43), a wall (20) of the outer tub being connected or integrally provided with a process air channel (5), the wall of the outer tub comprising a channel inlet (51), a rinsing device (9) supplying rinsing water to the process air channel, and the channel inlet being positioned such that the rinsing water enters the outer tub via the channel inlet, characterized in that, The control method comprises: During the running of the drying program, and / or before and after the drying program, at least one lint cleaning process is run, wherein the lint cleaning process comprises: rotating the inner drum at a first rotational speed (S1), and keeping the rinsing device in an open state during the rotation of the inner drum at the first rotational speed; wherein the rinsing device is opened after the rotational speed of the inner drum reaches the first rotational speed, and the rinsing device is closed after the rinsing device is kept open for a first set time (T1), during which the rotational speed of the inner drum is kept at the first rotational speed; The first rotational speed is set to make the laundry in the inner drum tightly adhere to the circumferential wall of the inner drum.

2. The control method according to claim 1, characterized by: The lint cleaning process is run at intervals during the running of the drying program, and / or before and after the drying program.

3. The control method according to claim 1, characterized by: The first rotational speed is greater than 600 rpm.

4. The control method of claim 1, wherein: The first rotational speed is greater than 200 rpm.

5. The control method of claim 1, wherein: The control device (10) is configured to perform the control method according to any one of claims 1-17.

6. The control method of claim 1, wherein: The process air channel is provided with a filter screen (11) for isolating lint from the outer drum, and the rinsing device is configured to supply rinsing water to the filter screen.

7. The control method of claim 1, wherein: The filter screen is arranged close to the channel inlet.

8. The control method of claim 1, wherein: The filter screen is arranged on the wall of the outer drum.

9. The control method of claim 1, wherein: The filter screen is flush with the inner surface of the wall of the outer drum.

10. The control method of claim 1, wherein: The channel inlet is at least partially close to the circumferential wall of the inner drum.

11. The control method of claim 1, wherein: The rotation shaft (40) of the inner drum is horizontally or obliquely arranged, and the channel inlet is at least partially above the circumferential wall of the inner drum, and the first rotational speed is set to make the centrifugal acceleration at the circumferential wall position greater than the gravitational acceleration.

12. The control method of claim 11, wherein: The process air channel is provided with a fan (7) for facilitating the entry of air from the outer drum into the process air channel, and the fan is kept closed during the lint cleaning process.

13. The control method of claim 12, wherein: The first rotational speed is constant or variable.

14. The control method of claim 1, wherein: After the rinsing device is closed, the inner drum continues to rotate at the first rotational speed for a second set time (T2).

15. The control method of claim 14, wherein: During the opening of the rinsing device, a drain pump (12) connected to the bottom of the outer drum is continuously opened or opened as needed to ensure that the water level of the rinsing water entering the outer drum is not higher than the bottom of the circumferential wall of the inner drum.

16. The control method of claim 1, wherein: The lint cleaning process is automatically triggered when the drying program is triggered.

17. The control method of claim 1, wherein: The lint cleaning process is run independently after being selected as a program option.

18. A laundry treatment apparatus comprising a drying cycle, comprising an outer tub (2) and an inner tub (4) rotatably arranged inside the outer tub, the inner tub comprising a peripheral wall (41) and an end wall (42), at least the peripheral wall being provided with a plurality of through holes (43), a wall (20) of the outer tub being connected or integrally provided with a process air channel (5), the wall of the outer tub comprising a channel inlet (51), a rinsing device (9) supplying rinsing water to the process air channel, and the channel inlet being positioned so that the rinsing water enters the outer tub through the channel inlet, characterized in that: The drying program sequentially comprises a thermal dehydration process, a main drying process, and a cooling process, and the lint cleaning process is run in the thermal dehydration process. 19.The laundry treating apparatus of claim 18, wherein: The lint cleaning process includes turning on the air heating device (8). 20.The laundry treating apparatus of claim 19, wherein: The air heating device is located in the process air channel. 21.The laundry treating apparatus of claim 19, wherein: The drying program sequentially comprises a thermal dehydration process, a main drying process, and a cooling process, and the lint cleaning process is run in the cooling process. 22.The laundry treating apparatus of claim 21, wherein: The first rotational speed is greater than 600 rpm. 23.The laundry treating apparatus of claim 18, wherein: The first rotational speed is greater than 200 rpm. 24.The laundry treating apparatus of claim 18, wherein: The control device (10) is configured to perform the control method according to any one of claims 1-17. The process air channel is provided with a filter screen (11) for isolating lint from the outer drum, and the rinsing device is configured to supply rinsing water to the filter screen. The filter screen is arranged close to the channel inlet. The filter screen is arranged on the wall of the outer drum. The filter screen is flush with the inner surface of the wall of the outer drum. The channel inlet is at least partially close to the circumferential wall of the inner drum. The rotation shaft (40) of the inner drum is horizontally or obliquely arranged, and the channel inlet is at least partially above the circumferential wall of the inner drum, and the first rotational speed is set to make the centrifugal acceleration at the circumferential wall position greater than the gravitational acceleration. 25.The laundry treating apparatus of claim 24, wherein: The inner barrel comprises a first side (401) and a second side (402) divided by a vertical plane (13) passing through the rotating shaft, the channel entrance is located above the first side, and the control device is configured to rotate the inner barrel in a direction such that the top end of the inner barrel rotates towards the first side during the lint cleaning process.

Images