Lint separating device and control method of a laundry dryer having a lint separating device

Abstract

The application discloses a lint separating device and a control method of a clothes dryer with the lint separating device. The lint separating device is arranged in an air duct and comprises a filtering part and a guide channel. The filtering part comprises a first filtering part and a second filtering part arranged on opposite sides of the air duct and partially covering a cross section of the air duct. The distance between the first filtering part and the second filtering part gradually decreases along an air outlet direction. The part of the cross section not covered by the first filtering part and the second filtering part is opposite to the position of the guide channel. The guide part comprises a first guide part and a second guide part extending along the air outlet direction and separating the air duct. The first guide part and the second guide part are arranged at intervals in the air duct to form the guide channel. The lint in the filtering part is guided to the outside of the air duct. An exhaust valve is arranged at the end of the first filtering part and the second filtering part with a smaller distance. A detection part is further arranged on the filtering part. The clothes dryer detects the air resistance of the filtering part to determine whether the filtering part is covered with a large amount of lint. When the filtering part is covered with a large amount of lint, the exhaust valve is opened to exhaust the lint, thereby realizing automatic cleaning of the lint.

Description

Technical Field

[0001] This invention belongs to the field of clothes dryers, and specifically relates to a lint separation device and a control method for a clothes dryer having a lint separation device. Background Technology

[0002] During the operation of a clothes dryer, lint and dander from clothing inevitably flow with the drying air and are blocked by the lint filter, remaining on the filter. As the dryer is used, the lint and dander accumulate on the lint filter, obstructing the flow of drying air, which reduces the drying efficiency and worsens the drying effect.

[0003] To address this issue, Chinese invention patent application CN201210575631.7 discloses a lint filter device, comprising a first lint filter layer, a second lint filter layer, and a third lint filter layer. The first and second lint filter layers are interlocked and installed below the door of the front air duct at the air outlet of the dryer drum. The third lint filter layer is located in the internal air duct of the dryer. The multiple filter layers achieve lint filtration and collection, and the filter device can be removed for cleaning. Although the above solution achieves lint filtration and collection, users need to frequently disassemble the filter for cleaning, which is relatively complicated and reduces the user experience.

[0004] Chinese invention patent application number CN202110297801.9 discloses a filtration mechanism and a clothes dryer, including a filter box disposed in an air duct, which divides the air duct into a turbid air section and a clean air section. It also includes a fan, a collection box, a first filter screen, and a sealing plate. The sealing plate selectively closes the collection box and the air duct, and the fan changes the direction of the circulating air in the air duct, thereby collecting the lint filtered in the filter box into the collection box. This achieves automatic cleaning of lint, reduces the frequency of manual cleaning by the user, and improves the user experience. However, in the above solution, the cleaning procedure can only be performed after the clothes are dried. If the cleaning procedure is performed during the drying process, the sealing plate will block the air circulation, which will interrupt the drying process. At the same time, the circulating air cannot return to the air duct after sending the lint into the collection box, resulting in a waste of heat.

[0005] In view of this, the present invention is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a lint separation device to address the problems in the prior art. The lint separation device is located inside the air duct and includes a filter section and a guide channel for discharging the lint filtered out by the filter section to the outside of the air duct, thereby realizing automatic cleaning of the filter section and improving the user experience.

[0007] Another objective of this invention is to provide a control method for a clothes dryer with a lint separation device to address the shortcomings of the prior art. By detecting the air resistance of the filter section, the adhesion of lint on the detection section is determined based on the detection results. When it is determined that there is a lot of lint, a cleaning procedure is executed to discharge the lint from the guide channel. While automatically cleaning the lint, the impact of the circulating air discharge on the drying efficiency is reduced.

[0008] To achieve the above objectives, a first aspect of the present invention provides a wire chip separation device, wherein the wire chip separation device is disposed inside an air duct, and the air duct has an air inlet and an air outlet at its two ends, respectively, characterized in that the wire chip separation device comprises,

[0009] The filter section has a mesh structure and is used to filter lint.

[0010] A guide channel is located at the rear of the filter section along the air outlet direction, connecting the filter section to the outside of the air duct, and is used to guide lint to the outside of the air duct.

[0011] In the above solution, the guide channel is located at the rear of the filter section. The lint filtered out by the filter section can be discharged to the outside of the front air duct along the guide channel under the drive of the circulating air. This avoids the lint from adhering and accumulating on the filter section and affecting the dryer's efficiency, realizes automatic cleaning of the filter section, and improves the user experience.

[0012] Furthermore, the filtering section includes,

[0013] The first filter section is connected to the duct wall of the air duct and partially covers the cross-section of the air duct;

[0014] The portion of the air duct's cross-section not covered by the first filter is opposite to the guide channel.

[0015] Preferably, the area of ​​the cross-section of the air duct not covered by the first filter section is smaller than the area covered by the first filter section.

[0016] Preferably, the first filtering part is a filter screen.

[0017] In the above scheme, the first filter section blocks lint in the circulating air. When lint adheres to the first filter section and affects the passage of the circulating air, the blocked circulating air forms a vortex. The lint attached to the first filter section enters the guide channel under the drive of the vortex, thereby realizing the automatic cleaning of the first filter section.

[0018] Furthermore, the duct wall is provided with an opening, and the guide channel includes,

[0019] The first guide portion is connected to the duct wall of the air duct and extends along the air outlet direction to divide the air duct, forming a guide channel that connects the part of the air duct cross section not covered by the first filter portion with the opening.

[0020] In the above scheme, the first guide section extends along the air outlet direction to divide the air duct into a guide channel, which reduces the impact of the guide channel on the circulation efficiency of the circulating air. At the same time, the guide channel has a simple structure and is easy to replace and maintain.

[0021] Furthermore, the filtering section also includes,

[0022] The second filter section is located inside the air duct, opposite to the position of the first filter section, and partially covers the cross-section of the air duct.

[0023] The portion of the cross-section of the air duct not covered by the first filter and the second filter is opposite to the guide channel.

[0024] Furthermore, the duct wall is provided with an opening, and the guide channel includes,

[0025] The first guide section is connected to the duct wall of the air duct and extends outward from one side of the opening to below the first filter section;

[0026] The second guide section is connected to the duct wall of the air duct and extends outward from the other side of the opening to below the second filter section, opposite to the first guide section;

[0027] The first guide section and the second guide section respectively separate the air duct, forming the guide channel between the first guide section and the second guide section.

[0028] In the above scheme, the first guide part and the second guide part extend below the first filter part and the second filter part respectively, but are not connected to the first filter part and the second filter part, which further improves the convenience of operation when maintaining the wire chip separation device.

[0029] Preferably, the first filter section, the second filter section, the first guide section, and the second guide section are connected to the duct wall at both ends perpendicular to the air outlet direction.

[0030] The above connection method improves the stability of the lint separator in the air duct and prevents the filter and guide parts from falling off or shifting.

[0031] Furthermore, the first filter section and the second filter section are inclinedly arranged in the air duct, and the distance between the first filter section and the second filter section gradually decreases along the air outlet direction.

[0032] In the above scheme, the inclined first and second filter sections can guide the lint, allowing it to enter the guide channel more smoothly, reducing the likelihood of lint adhering to the first and second filter sections, and improving the drying efficiency of the dryer.

[0033] Furthermore, the cross-sectional area of ​​the guide channel extending to one end around the discharge port gradually increases in the direction close to the discharge port.

[0034] Since the guide channel is not directly connected to the discharge port, the wire debris may spread in all directions after being discharged from the discharge port due to pressure changes. The above solution achieves more thorough collection of the spread wire debris by increasing the cross-sectional area of ​​the guide channel near the discharge port, thus preventing the wire debris from spreading into the air duct and affecting the wire debris collection effect.

[0035] Furthermore, the peripheral wall of the guide channel has a mesh structure that can block lint.

[0036] The above solution guides the lint to the outside of the air duct while some of the circulating air returns to the air duct through the mesh structure to continue circulating, thus avoiding the waste of heat in the circulating air and further preventing an increase in the power consumption of the dryer.

[0037] Furthermore, the wire chip separation device also includes,

[0038] The discharge valve is located at the end of the first filter section and the second filter section where the distance is smaller.

[0039] In the above solution, when a large amount of lint accumulates and affects the drying efficiency, the discharge valve is opened to discharge it, which prevents the circulating air from continuously entering the guide channel and being discharged to the outside of the air duct, thereby improving the utilization rate of heat in the circulating air and reducing the working power consumption of the dryer.

[0040] Furthermore, the wire chip separation device also includes,

[0041] The collection section, located outside the air duct and connected to the guide channel, is used to collect lint.

[0042] The above solution uses a collection section to collect the lint discharged from the guide channel, preventing the lint from polluting the environment around the dryer. At the same time, compared with the filter section, since the collection section is located outside the front air duct, it has a larger capacity and can hold more lint, reducing the frequency of cleaning for users and improving the user experience.

[0043] Furthermore, the collection section is located on the bottom plate of the dryer.

[0044] The above solution, by placing the collection unit on the bottom plate of the dryer, allows users to more easily remove the collection unit for cleaning, further improving the user experience.

[0045] Furthermore, the wire chip separation device also includes,

[0046] The detection unit, located on the filter unit, is used to detect the air resistance at the mesh structure.

[0047] A second aspect of the present invention provides a control method for a clothes dryer having a lint separation device as described in the above-described scheme, comprising the following steps:

[0048] S1. During the drying process, the detection unit continuously detects the air resistance of the filter unit, obtains the first parameter, and sends the first parameter to the dryer computer board.

[0049] S2. The computer board compares the first parameter with the preset first wind resistance threshold. If the first parameter is greater than the first wind resistance threshold, it controls the dryer to execute the cleaning program.

[0050] Furthermore, the cleanup procedure specifically includes:

[0051] The computer board controls the opening of the discharge valve located at the discharge port. The lint is driven by the circulating air into the guide channel and then into the collection section.

[0052] Furthermore, dryer control methods also include,

[0053] S3. During the cleaning process, the detection unit continues to detect the air resistance of the filter unit and obtains the second parameter. The computer board compares the second parameter with the second air resistance threshold. If the second parameter is less than the second air resistance threshold, the cleaning process ends.

[0054] The second wind resistance threshold is less than the first wind resistance threshold.

[0055] Alternatively, as an alternative to the above solution, step S3 is as follows: the computer board times the running time of the cleaning program, and the cleaning program ends when the running time reaches the preset time.

[0056] The above solution determines the accumulation of lint on the filter section by detecting the air resistance of the filter section, thereby realizing the automatic cleaning of the accumulated lint on the filter section, improving the intelligence level of the dryer and enhancing the user experience.

[0057] Furthermore, when the cleaning process is complete, the computer board controls the discharge valve located at the discharge port to close.

[0058] The beneficial effects of this invention are as follows:

[0059] The filter section is connected to the outside of the air duct via a guide channel. Lint is discharged along the guide channel to the outside of the air duct, achieving automatic cleaning of the lint separation device and improving the user experience. The guide channel is located at the rear of the filter section. Lint filtered by the filter section can be discharged to the outside of the front air duct along the guide channel by the circulating air, improving the efficiency of automatic cleaning and reducing the impact of lint adhesion on drying efficiency. The first and second guide sections extend along the air outlet direction, reducing the impact of the guide channel on the normal circulation of the circulating air. Furthermore, due to its simple structure, it is easy to maintain and replace. The inclined first and second filter sections provide a certain guiding effect on the lint, allowing it to enter the guide channel more smoothly, while reducing the impact of lint on the first air duct. The increased likelihood of lint adhering to the filter section and the second filter section further improves the drying efficiency of the dryer; the cross-sectional area of ​​the guide channel extending to the outlet gradually increases towards the outlet, preventing lint from spreading into the air duct and affecting the lint collection effect; the peripheral wall of the guide channel has a mesh structure that can block lint, allowing the circulating air to return to the air duct for continued circulation while guiding the air out, avoiding the waste of heat caused by the circulating air being discharged with the lint; the wind resistance at the mesh structure of the filter section is detected to obtain a first parameter, which is compared with a preset first wind resistance threshold. When the first parameter is greater than the first wind resistance threshold, a cleaning procedure is initiated, realizing automatic cleaning of the filter section and improving the user experience. Attached Figure Description

[0060] Figure 1 This is a schematic diagram of one structure of the wire chip separation device described in this invention.

[0061] Figure 2 This is a schematic diagram of another structure of the wire chip separation device described in this invention.

[0062] In the diagram: 1. Filter section; 11. First filter section; 12. Second filter section; 2. Guide channel; 21. First guide section; 22. Second guide section; 3. Opening; 4. Drain valve; 5. Detection section. Detailed Implementation

[0063] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. Those skilled in the art will understand that the following embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0064] In the description of this invention, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0066] Example 1

[0067] As an embodiment of the present invention, this embodiment provides a wire chip separation device, which is disposed inside an air duct. The air duct has an air inlet and an air outlet at both ends, and includes...

[0068] Filter section 1 has a mesh structure for filtering lint;

[0069] The guide channel 2 is located at the rear of the filter section 1 along the air outlet direction, connecting the filter section 1 to the outside of the air duct, and is used to guide the lint to the outside of the air duct.

[0070] In this embodiment, as Figure 1 As shown, the air duct has an opening 3, and the filter unit 1 includes,

[0071] The first filter section 11 is connected to the duct wall of the air duct and partially covers the cross section of the air duct;

[0072] Guidance channel 2 includes,

[0073] The first guide part 21 is connected to the duct wall of the air duct and extends along the air outlet direction to divide the air duct, forming a guide channel 2 that connects the part of the air duct cross section not covered by the first filter part 11 with the opening 3.

[0074] The portion of the air duct's cross-section not covered by the first filter section 11 is opposite to the guide channel 2.

[0075] In the above scheme, the lint blocked by the first filter section 11 enters the guide channel 2 under the drive of the circulating air, and is discharged to the outside of the air duct through the opening 3 on the air duct wall under the guidance of the guide channel 2, thereby realizing the automatic cleaning of the lint separation device.

[0076] Furthermore, the first filter section 11 is inclinedly disposed inside the air duct, and the end near the air outlet of the air duct along the air outlet direction is spaced apart from the air duct wall to form an exhaust port. The first guide section 21 connects the exhaust port with the opening 3 provided on the air duct wall.

[0077] In the above scheme, the inclined first filter section 11 can guide the lint to a certain extent, so that the lint can enter the guide channel 2 more smoothly, reducing the possibility of lint adhering to the first filter section 11 and the second filter section 12, and improving the drying efficiency of the dryer.

[0078] Example 2

[0079] As another embodiment of the present invention, this embodiment provides a wire chip separation device, which is disposed inside the air duct and includes a filter section 1 and a guide channel 2 disposed at the rear of the filter section 1 along the air outlet direction, connecting the filter section 1 to the outside of the air duct.

[0080] In this embodiment, as Figure 2 As shown, the filter unit 1 includes,

[0081] The first filter section 11 is connected to the duct wall of the air duct and partially covers the cross section of the air duct;

[0082] The second filter section 12 is disposed inside the air duct opposite to the first filter section 11, and partially covers the cross section of the air duct.

[0083] An outlet is formed in the portion of the cross-section of the air duct that is not covered by the first filter section 11 and the second filter section 12. The outlet and the guide channel 2 are connected to the outside of the air duct.

[0084] Furthermore, the first filter section 11 and the second filter section 12 are inclinedly arranged in the air duct, and the distance between the first filter section 11 and the second filter section 12 gradually decreases along the air outlet direction.

[0085] In the above scheme, the inclined first filter section 11 and second filter section 12 can guide the lint to a certain extent, so that the lint can enter the guide channel 2 more smoothly, reducing the possibility of lint adhering to the first filter section 11 and second filter section 12, and improving the drying efficiency of the dryer.

[0086] Furthermore, guide channel 2 includes,

[0087] The first guide portion 21 is connected to the duct wall of the air duct and extends outward from one side of the opening 3 to below the first filter portion 11;

[0088] The second guide section 22 is connected to the duct wall of the air duct and extends outward from the other side of the opening 3 to below the second filter section 12, opposite to the first guide section 21.

[0089] The first guide section 21 and the second guide section 22 respectively separate the air duct, forming the guide channel 2 between the first guide section 21 and the second guide section 22. The guide channel 2 extends to the area around the discharge port, connecting the discharge port and the opening 3 on the air duct wall.

[0090] In the above scheme, the first guide part 21 and the second guide part 22 extend to the bottom of the first filter part 11 and the second filter part 12 respectively, but are not connected to the first filter part 11 and the second filter part 12, which further improves the convenience of operation when maintaining the wire chip separation device.

[0091] In order to allow lint to enter the guide channel 2 more smoothly and prevent it from leaking into the air duct from the gap between the guide channel 2 and the filter section 1, the cross-sectional area of ​​the end of the guide channel 2 extending to the outlet gradually increases along the direction closer to the outlet. The above arrangement prevents lint from spreading to the surroundings when it enters the guide channel 2 and affecting the lint filtration effect.

[0092] Furthermore, the first filter section, the second filter section, the first guide section, and the second guide section are connected to the duct wall at both ends perpendicular to the air outlet direction.

[0093] The above connection method improves the stability of the lint separator in the air duct and prevents the filter and guide parts from falling off or shifting.

[0094] Example 3

[0095] As another embodiment of the present invention, this embodiment provides a wire chip separation device, which has the same structure as Embodiment 2, the difference being that, in this embodiment, as Figure 2 As shown, the wire chip separation device also includes,

[0096] The discharge valve 4 is located at the end of the first filter section 11 and the second filter section 12 at the smaller distance.

[0097] The detection unit 5 is located on the filter unit 1 and is used to detect the air resistance at the mesh structure.

[0098] In the above scheme, when the detection unit 5 detects that the wind resistance at the mesh structure is large, it is determined that there are a lot of lint attached to the filter unit 1, which will affect the drying efficiency. At this time, the discharge valve 4 is opened to discharge, which prevents the circulating air from continuously entering the guide channel 2 and being discharged to the outside of the air duct, thereby improving the utilization rate of heat in the circulating air and reducing the working power consumption of the dryer.

[0099] Example 4

[0100] As another embodiment of the present invention, this embodiment provides a wire chip separation device with the same structure as Embodiment 3, the difference being that in this embodiment, the peripheral wall of the guide channel has a mesh structure.

[0101] Lint is drawn into the guide channel by the circulating air and discharged to the outside of the duct through the opening on the duct wall. Although this achieves automatic cleaning of lint, it also wastes the heat carried by the circulating air. In the above solution, the circulating air that sends the lint to the outside of the duct can return to the duct through the mesh structure to continue circulating, reducing the waste of heat in the circulating air and avoiding increasing the power consumption of the dryer.

[0102] Example 5

[0103] As another embodiment of the present invention, this embodiment provides a wire chip separation device with the same structure as in embodiment four, the difference being that, in this embodiment, the wire chip separation device further includes,

[0104] The collection section, located outside the air duct and connected to the guide channel, is used to collect lint.

[0105] The above solution uses a collection section to collect the lint discharged from the guide channel, preventing the lint from polluting the environment around the dryer. At the same time, compared with the filter section, since the collection section is located outside the front air duct, it has a larger capacity and can hold more lint, reducing the frequency of cleaning for users and improving the user experience.

[0106] Furthermore, the collection section is located on the bottom plate of the dryer.

[0107] The above solution, by placing the collection unit on the bottom plate of the dryer, allows users to more easily remove the collection unit for cleaning, further improving the user experience.

[0108] Another aspect of the present invention provides a control method for a clothes dryer with a lint separation device, specifically:

[0109] Example 6

[0110] As another embodiment of the present invention, this embodiment provides a control method for a clothes dryer having the lint separation device described in Embodiment 3, comprising the following steps:

[0111] S1. During the drying process, the detection unit continuously detects the air resistance of the filter unit, obtains the first parameter, and sends the first parameter to the dryer computer board.

[0112] S2. The computer board compares the first parameter with the preset first wind resistance threshold. If the first parameter is greater than the first wind resistance threshold, it controls the dryer to execute the cleaning program.

[0113] The above control method is as follows: During the operation of the dryer, the detection unit continuously detects the air resistance at the mesh structure of the filter section, obtains the first parameter, and sends the first parameter to the computer board. The computer board compares the received first parameter with the preset first air resistance threshold. If the first parameter is greater than the first air resistance threshold, the computer board determines that there are more lint adhering to the filter section and controls the dryer to execute the cleaning program.

[0114] Furthermore, the control method for the dryer with the lint separation device also includes,

[0115] S3. During the cleaning process, the detection unit continues to detect the air resistance of the filter unit and obtains the second parameter. The computer board compares the second parameter with the second air resistance threshold. If the second parameter is less than the second air resistance threshold, the cleaning process ends.

[0116] The second wind resistance threshold is less than the first wind resistance threshold.

[0117] Specifically, during the emission process, the detection unit continues to detect the air resistance at the mesh structure of the filter section, obtains the second parameter, and sends the second parameter to the computer board. The computer board compares the received second parameter with the preset second air resistance threshold. When the second parameter is less than the second air resistance threshold, it determines that the filter section has completed cleaning and controls the dryer to end the cleaning process.

[0118] Alternatively, as an alternative to the above solution, step S3 is as follows: the computer board times the running time of the cleaning program, and the cleaning program ends when the running time reaches the preset time.

[0119] Furthermore, the cleanup procedure described in the above scheme is as follows:

[0120] The computer board controls the opening of the discharge valve located at the discharge port. The lint is driven by the circulating air into the guide channel and then into the collection section.

[0121] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A wire chip separation device, wherein the wire chip separation device is disposed inside an air duct, and the air duct has an air inlet and an air outlet at both ends, characterized in that, The wire chip separation device includes, The filter section has a mesh structure and is used to filter lint. A guide channel is located at the rear of the filter section along the air outlet direction, connecting the filter section to the outside of the air duct, and is used to guide the lint to the outside of the air duct. The filter unit includes, The first filter section is connected to the duct wall and partially covers the cross-section of the duct; the portion of the duct cross-section not covered by the first filter section is opposite to the guide channel. The second filter section is located inside the air duct, opposite to the position of the first filter section, and partially covers the cross-section of the air duct; the portion of the cross-section of the air duct not covered by the first filter section and the second filter section is opposite to the guide channel.

2. The wire chip separation device according to claim 1, characterized in that, The air duct wall has an opening, and the guide channel includes... The first guide section is connected to the duct wall of the air duct and extends outward from one side of the opening to below the first filter section; The second guide section is connected to the duct wall of the air duct and extends outward from the other side of the opening to below the second filter section, opposite to the first guide section; The first guide section and the second guide section respectively separate the air duct, forming the guide channel between the first guide section and the second guide section.

3. The wire chip separation device according to claim 1, characterized in that, The first filter section and the second filter section are inclinedly arranged in the air duct, and the distance between the first filter section and the second filter section gradually decreases along the air outlet direction.

4. The wire chip separation device according to claim 3, characterized in that, The wire chip separation device also includes, The discharge valve is located at the end of the first filter section and the second filter section where the distance is smaller.

5. The wire chip separation device according to any one of claims 1-4, characterized in that, The wire chip separation device also includes The detection unit, located on the filter unit, is used to detect the air resistance at the mesh structure.

6. A control method for a clothes dryer having a lint separating device as described in any one of claims 1-4, characterized in that, Includes the following steps: S1. During the drying process, the detection unit continuously detects the air resistance of the filter unit, obtains the first parameter, and sends the first parameter to the dryer computer board. S2. The computer board compares the first parameter with the preset first wind resistance threshold. If the first parameter is greater than the first wind resistance threshold, it controls the dryer to execute the cleaning program.

7. The control method for a clothes dryer according to claim 6, characterized in that, It also includes, S3. During the cleaning process, the detection unit continues to detect the air resistance of the filter unit and obtains the second parameter. The computer board compares the second parameter with the second air resistance threshold. If the second parameter is less than the second air resistance threshold, the cleaning process ends. The second wind resistance threshold is less than the first wind resistance threshold.

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