A clothes dryer and its lint filter device

Abstract

This invention discloses a clothes dryer and its lint filtering device. The lint filtering device includes a filter section with a comb-like structure, rotatably disposed inside an air duct, a drive section driven by the filter section for driving the filter section to rotate, and a collection section disposed below the filter section for collecting lint. The filter section includes a first filter section and a second filter section disposed on opposite sides inside the air duct. The first filter section includes a first comb back and a first comb tooth and a third comb tooth connected to the first comb back. The second filter section includes a second comb back and a second comb tooth connected to the second comb back. The drive section drives the first filter section and the second filter section to rotate through the first comb back and the second comb back. The first comb tooth, the second comb tooth and the third comb tooth cover the cross section of the air duct to filter lint. When the drying process stops, the drive section drives the first filter section and the second filter section to rotate, causing the lint to fall off and be collected by the collection section. The user cleans the lint in the air duct by cleaning the collection section.

Description

Technical Field

[0001] This invention belongs to the field of clothes dryers, and specifically relates to a clothes dryer and its lint filtering 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, existing technologies typically employ filters to remove lint from the condenser duct or at the connection point between the duct and the drum. When lint accumulates and obstructs the normal circulation of the airflow, the filters are removed for cleaning, or water is sprayed onto them using a cleaning device to ensure the dryer operates normally.

[0004] For example, Chinese invention patent application number CN201210575631.7 discloses a lint filter device, including 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 lint is filtered and collected through multiple filter layers, and the filter device can be removed for cleaning. While the above method achieves sufficient lint filtration and collection through multiple filter layers, users cannot clearly know the accumulation of lint in the filter device. The filter screen may be damaged due to increased air resistance caused by a large accumulation of lint, leading to the failure of the lint filter device. Furthermore, the process of disassembling and cleaning the filter device is cumbersome, and users who are not professional repair personnel may damage the filter device during disassembly and assembly.

[0005] To overcome the shortcomings of the prior art, Chinese invention patent application number CN201910817825.5 discloses a filter device and a method for determining its degree of clogging. Specifically, after washing and before drying, the static pressure at the inlet and outlet of the condenser is detected to obtain the inlet static pressure P1 and outlet static pressure P2, respectively. If P1-P2 ≥ a preset static pressure difference threshold, the filter device is determined to need cleaning, and an alarm is issued to the user. Although the above solution can determine the clogging of the filter device through pressure difference, allowing users to clean it when there is a lot of lint, avoiding the problem of excessive lint accumulation causing filter screen damage and improving the user experience, the user still needs to disassemble the filter device to clean the lint, which is cumbersome and may damage the filter device.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] One of the objectives of this invention is to provide a lint filter device that addresses the problems in the prior art. The device is installed inside the air duct of a dryer and includes a rotatable filter section with a comb-like structure. This improves the reliability of the filter device structure and enables automatic cleaning of the filter section by rotating it.

[0008] Another objective of this invention is to provide a clothes dryer, including a detection device for detecting the air resistance of a lint filter and a computer board located in the air duct. The computer board determines the accumulation of lint based on the detection results of the detection device, and controls the filter to rotate when there is a large accumulation of lint so that the lint falls into the collection section, making it easier for the user to clean up the lint.

[0009] To achieve the above objectives, a first aspect of the present invention provides a lint filter device disposed inside an air duct, comprising,

[0010] The filter section has a comb-like structure that covers the cross-section of the air duct and is rotatably located inside the air duct for filtering lint.

[0011] The drive unit is connected to the filter unit and is used to drive the filter unit to rotate.

[0012] In the above solution, the filter section has a comb-like structure made of rigid material, which ensures that it has the ability to deform slightly, while avoiding damage to the filter section structure due to increased wind resistance when there is a lot of wire debris accumulation, thus improving the stability of the wire debris filtration device.

[0013] The drive unit drives the filter unit to rotate inside the air duct. The drive unit controls the rotation of the filter unit to make the lint attached to the filter unit fall off and be discharged. Alternatively, the drive unit controls the rotation of the filter unit to cover the cross section of the air duct, thereby achieving the filtration of lint by the filter unit.

[0014] Furthermore, in order to improve the filtration effect of the comb structure on lint, the comb structure is made of a material with a certain degree of rigidity. Because it has a small deformation capability, the structure of the filter section is not easily damaged even when a large amount of lint is accumulated and the air resistance is large, thus improving the stability of the lint filtration device.

[0015] Furthermore, the comb-like structure includes,

[0016] The comb back is movably connected to the air duct wall;

[0017] The comb teeth are connected to the comb back and are spaced apart on the comb back, extending outward from the comb back.

[0018] The comb teeth extending from the same comb back are located on the same plane.

[0019] In the above scheme, the comb teeth extending from the comb back can be located on the same side of the comb back or on opposite sides of the comb back, satisfying various installation requirements of the filter section in the air duct.

[0020] Preferably, the back of the comb is perpendicular to the comb teeth.

[0021] The above solution, when the comb-like structure covers the cross-section of the air duct, has shorter comb teeth, reducing the manufacturing cost of the filter section.

[0022] Preferably, the comb teeth extending from the same comb back are located on the same side of the comb back.

[0023] In the above scheme, the comb teeth are located on the same side of the comb back. When the filter part is rotated to discharge the lint, an opening is formed between the end of the comb teeth and the air duct wall, which realizes the directional discharge of the lint. Furthermore, the comb back of the filter part only rotates relative to the air duct wall without relative displacement, which reduces the gap between the filter part and the air duct wall.

[0024] Furthermore, the comb back is hinged to the air duct wall, and the drive unit drives the filter unit to rotate through the comb back.

[0025] Furthermore, the filtering section includes,

[0026] The first filter section includes a first comb back and a first comb tooth. It is movably connected to the air duct wall through the first comb back. When the first filter section covers the air duct cross section, the end of the first comb tooth abuts against the air duct wall.

[0027] In the above scheme, when the first filter section covers the cross section of the air duct to filter the lint, the end of the first comb tooth abuts against the air duct wall, and the lint can be fully blocked by the first filter section. When a lot of lint accumulates, the first filter section rotates, the end of the first comb tooth leaves the air duct wall, and the lint is removed from the first filter section under the action of gravity. Then the first filter section rotates again, and the end of the first comb tooth is pressed against the air duct wall again to continue filtering the lint.

[0028] Another option is that the filter section includes,

[0029] The first filter section is located on one side inside the air duct and is movably connected to the air duct wall;

[0030] The second filter section is located on the other side of the air duct, opposite to the position of the first filter section, and is movably connected to the air duct wall.

[0031] The first and second filter sections cooperate to cover the cross-section of the air duct.

[0032] The above solution makes the structure of the filter section more stable and further reduces the gap between the filter section and the duct wall, thus improving the filtration effect.

[0033] Furthermore, the first filter section has a comb-like structure, including a first comb back and first comb teeth;

[0034] The second filter section has a comb-like structure, including a second comb back and a second comb tooth;

[0035] When the first filter section and the second filter section cooperate to cover the cross section of the air duct, the first comb teeth and the second comb teeth are located on the same plane.

[0036] In the above scheme, when the first filter section and the second filter section cooperate to cover the cross section of the air duct, the first comb tooth and the second comb tooth are located on the same plane. Compared with covering the air duct only through the first filter section, the comb tooth is less likely to deform under the influence of wind resistance when a large amount of lint accumulates, thus improving the stability of the lint filter device structure.

[0037] Furthermore, when the first filter section and the second filter section cooperate to cover the cross-section of the air duct, the coverage areas of the first filter section and the second filter section at least partially overlap.

[0038] Preferably, the end of the first comb tooth is close to the back of the second comb, the end of the second comb tooth is close to the back of the first comb, and the first comb tooth and the second comb tooth are arranged alternately on the same plane.

[0039] The above solution improves the structural stability of the lint filter device while increasing the density of the comb teeth covering the air duct cross section, thus enabling more thorough filtration of lint.

[0040] Another option is that the first filter is installed in front of the second filter along the air outlet direction, and when the first filter and the second filter are in place, they form an inclined surface covering the cross section of the air duct.

[0041] The first filter section also includes,

[0042] The third comb tooth is located between two adjacent first comb teeth and extends outward from the back of the first comb.

[0043] The length of the third comb tooth is shorter than the length of the first comb tooth. When the first filter section and the second filter section cover the air duct section, the ends of the third comb tooth and the second comb tooth are opposite to each other.

[0044] Preferably, the length of the first comb tooth is equal to the sum of the lengths of the third comb tooth and the second comb tooth.

[0045] In the above scheme, the third comb tooth and the first comb tooth are alternately arranged on the first comb tooth, and the length of the first comb tooth is longer than the length of the third comb tooth. When the first filter section and the second filter section cooperate to form an inclined surface covering the cross section of the air duct, the wire debris accumulates on the side near the second comb tooth under the guidance of the inclined surface. Since the distance between two adjacent second comb teeth is large, the wire debris can be more easily removed from the filter section.

[0046] Furthermore, the lint filter also includes,

[0047] The collection section has a mesh structure and is detachably connected to the air duct. It is located at the rear of the filter section along the air outlet direction and is used to collect lint.

[0048] In the above solution, the collection unit is detachably connected to the air duct, allowing users to clean up lint by removing the collection unit, reducing operational difficulty and improving user experience; the collection unit has a mesh structure, which avoids affecting the normal circulation of the circulating air.

[0049] A second aspect of the present invention provides a clothes dryer having the lint filter device described in the above-described solution.

[0050] Furthermore, dryers also include,

[0051] The computer board is connected to the drive unit of the lint filter and is used to send a signal to the drive unit when the drying process stops, so that the drive unit can control the rotation of the filter unit.

[0052] In the above solution, when the drying process stops, the computer board controls the filter to rotate, causing the lint to fall. The fallen lint is discharged from the drain pipe, realizing automatic lint cleaning; or the fallen lint is collected by the collection unit, and the lint in the air duct is cleaned by the user manually.

[0053] Furthermore, dryers also include,

[0054] An alarm device, connected to the computer board, is used to prompt the user to clean the collection section.

[0055] Furthermore, dryers also include,

[0056] The detection device, which is connected to the computer board, is located in the front air duct of the dryer. It is used to detect the air resistance of the lint filter and send the detection results to the computer board.

[0057] In the above solution, the computer board can determine the accumulation of lint based on the detection results sent by the detection device and control the dryer to clean up the lint.

[0058] The specific method is as follows: when the computer board determines that there is a lot of lint accumulated, the computer board controls the drying process to pause, and then sends a command to the drive unit. The drive unit controls the filter unit to rotate so that the lint falls. The fallen lint is flushed into the drainage channel by the washing water and discharged. Then the drive unit controls the filter unit to rotate to cover the air duct section, and the computer board controls the drying process to continue.

[0059] The above solution achieves the cleaning of lint during the drying process, avoids the accumulation of lint affecting the circulation efficiency of the circulating air, and reduces the air resistance of the filter section, preventing some lint from falling through the gaps when the air resistance is high, thus improving the lint filtration effect.

[0060] The beneficial effects of this invention are as follows:

[0061] The filter section has a comb-like structure made of rigid material. Due to its small deformation capability, the structure of the filter section is not easily damaged even when a large amount of lint accumulates and the air resistance is high, thus improving the stability of the lint filtration device. The drive unit drives the filter section to rotate within the air duct to filter lint and discharge accumulated lint. The filter section includes a first filter section and a second filter section located on opposite sides inside the air duct. Both the first and second filter sections have a comb-like structure, which, when combined with covering the cross-section of the air duct, improves the structural stability of the filter section. The first and second filter sections are not installed at the same horizontal height. The first filter section also includes a third comb tooth. The ends of the third comb tooth and the second comb tooth are opposite each other. When discharging lint, when covering the cross-section of the air duct, the relatively large spacing between the second comb teeth allows the lint to detach from the filter section more smoothly, improving the lint discharge efficiency. A collection section is provided below the filter section. The collection section is detachably connected to the air duct. Lint that detaches from the filter section falls into the collection section. Users can clean the lint in the air duct by removing the collection section. The collection section has a mesh structure to avoid affecting the normal circulation of the circulating air. Attached Figure Description

[0062] Figure 1 This is a first cross-sectional view of an air duct equipped with the lint filter device described in this invention.

[0063] Figure 2 This is a second cross-sectional view of an air duct equipped with the lint filter device described in this invention.

[0064] Figure 3 This is a third cross-sectional view of an air duct equipped with the lint filter device described in this invention.

[0065] Figure 4 For example Figure 2 The diagram shows a cross-sectional view of the air duct.

[0066] Figure 5 For example Figure 3 The diagram shows a cross-sectional view of the air duct.

[0067] Figure 6 For example Figure 1 The first cross-sectional view of the air duct shown.

[0068] Figure 7 For example Figure 1 The second cross-sectional view of the air duct shown.

[0069] Figure 8 for Figure 5 The diagram shows the structure of the dust filter device in the air duct.

[0070] In the diagram: 1. Air duct wall; 2. First filter section; 21. First comb back; 22. First comb tooth; 23. Third comb tooth; 3. Second filter section; 31. Second comb back; 32. Second comb tooth. Detailed Implementation

[0071] 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.

[0072] 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.

[0073] 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.

[0074] Example 1

[0075] As one embodiment of the present invention, this embodiment provides a lint filtering device, including,

[0076] The filter section has a comb-like structure made of rigid material, covering the cross-section of the air duct, and is rotatably located inside the air duct for filtering lint.

[0077] The drive unit is connected to the filter unit and is used to drive the filter unit to rotate.

[0078] In this embodiment, as Figure 2As shown, the filter section includes a first filter section 2 and a second filter section 3 respectively disposed on opposite sides inside the air duct. The first filter section 2 and the second filter section 3 cooperate to cover the cross section of the air duct to filter lint.

[0079] Furthermore, such as Figure 4 As shown, the first filter section 2 has a comb-like structure, including,

[0080] The first comb back 21 is hinged to the air duct wall 1 at both ends;

[0081] The first comb tooth 22 is perpendicular to the first comb back 21 and extends outward from one side of the first comb back 21;

[0082] The second filter section 3 has a comb-like structure, including,

[0083] The second comb back 31 is hinged to the air duct wall 1 at both ends;

[0084] The second comb tooth 32 is perpendicular to the second comb back 31 and extends outward from one side of the second comb back 31;

[0085] When the first filter section 2 and the second filter section 3 cooperate to cover the cross section of the air duct, the first comb tooth 22 and the second comb tooth 32 are located on the same plane and are arranged alternately on the same plane. The end of the first comb tooth 22 is close to the second comb back 31, and the end of the second comb tooth 32 is close to the first comb back 21.

[0086] The above-mentioned configuration method reduces the gap between the first comb tooth 22 and the second comb tooth 32, improves the lint filtration effect, and can achieve more thorough filtration of lint.

[0087] Preferably, the first comb back 21 and the second comb back 31 are provided with hinges at both ends, and are movably connected to the air duct wall 1 through the hinges. Those skilled in the art can also achieve the connection through other connection methods if a movable connection can be achieved.

[0088] Furthermore, the driving unit is a drive motor, which drives the first filter unit 2 and the second filter unit 3 to rotate in opposite directions simultaneously through transmission gears.

[0089] Alternatively, as an alternative to the above solution, the drive unit includes a first drive motor and a second drive motor, which drive the first filter unit 2 and the second filter unit 3 to rotate in opposite directions, respectively.

[0090] The first filter section 2 and the second filter section 3 rotate in opposite directions. When discharging the lint, the first filter section 2 and the second filter section 3 form a tapering opening with a gradually decreasing cross-sectional area along the air outlet direction in the air duct. The lint is discharged from the tapering opening under the action of gravity. As the lint moves along the surface of the first filter section 2 and the second filter section 3, the lint agglomerates, preventing the lint from scattering and adhering to the air duct wall 1, thus achieving complete discharge of the lint.

[0091] Example 2

[0092] As another embodiment of the present invention, this embodiment makes further improvements based on Embodiment 1, as follows:

[0093] In this embodiment, if Figure 3 As shown, the first filter section 2 is positioned in front of the second filter section 3 in the air outlet direction. When the first filter section 2 and the second filter section 3 are properly engaged, they form an inclined surface covering the cross-section of the air duct.

[0094] Since the first filter section 2 and the second filter section 3 form inclined surfaces in the air duct, the lint will gather on the side near the second filter section 3 during the accumulation process. This causes the lint that was originally spread flat on the first filter section 2 and the second filter section 3 to form agglomerates under the guidance of the inclined surfaces, which avoids the lint adhering to the air duct wall 1 and making it difficult to be discharged, thus improving the efficiency of lint discharge.

[0095] Furthermore, such as Figure 8 As shown, the first filter unit 2 includes,

[0096] The first comb back 21 is hinged to the air duct wall 1 at both ends;

[0097] The first comb tooth 22 is perpendicular to the first comb back 21 and extends outward from one side of the first comb back 21;

[0098] The third comb tooth 23 is located between two adjacent first comb teeth 22 and extends outward from the first comb back 21;

[0099] The second filter section 3 includes,

[0100] The second comb back 31 is hinged to the air duct wall 1 at both ends;

[0101] The second comb tooth 32 is perpendicular to the second comb back 31 and extends outward from one side of the second comb back 31;

[0102] The length of the third comb tooth 23 is shorter than the length of the first comb tooth 22. When the first filter section 2 and the second filter section 3 cover the cross section of the air duct, the ends of the third comb tooth 23 and the second comb tooth 32 are opposite each other.

[0103] In the above scheme, when the first filter section 2 and the second filter section 3 cover the cross section of the air duct, the ends of the third comb tooth 23 and the second comb tooth 32 are opposite each other, so as to avoid the lint filtration effect being reduced due to the inconsistency in length between the first comb tooth 22 and the third comb tooth 23. At the same time, the distance between adjacent second comb teeth 32 is large, so that the lint that has been agglomerated on one side of the second filter section 3 can be discharged more smoothly from the side near the second collection section, thereby improving the discharge efficiency.

[0104] Example 3

[0105] As another embodiment of the present invention, this embodiment is further improved based on embodiment two, as follows:

[0106] In this embodiment, the lint filtering device further includes,

[0107] The collection section has a mesh structure and is detachably connected to the air duct. It is located at the rear of the filter section along the air outlet direction and is used to collect lint.

[0108] In the above solution, the collection unit is detachably connected to the air duct, allowing users to clean up lint by removing the collection unit, reducing operational difficulty and improving user experience; the collection unit has a mesh structure, which avoids affecting the normal circulation of the circulating air.

[0109] Example 4

[0110] As another embodiment of the present invention, this embodiment provides a lint filter device, including,

[0111] The filter section has a comb-like structure made of rigid material, covering the cross-section of the air duct, and is rotatably located inside the air duct for filtering lint.

[0112] The drive unit is connected to the filter unit and is used to drive the filter unit to rotate.

[0113] In this embodiment, as Figure 1 As shown, the filter section is a first filter section 2 with a comb-like structure located inside the air duct. The first filter section 2 includes,

[0114] The first comb back 21 is hinged to the air duct wall 1 at both ends;

[0115] The first comb tooth 22 is perpendicular to the first comb back 21 and extends outward from the first comb back 21.

[0116] Furthermore, such as Figure 7 As shown, the first comb teeth 22 are located on opposite sides of the first comb back 21 and are on the same plane. When it is necessary to remove lint, the drive unit drives the first comb back 21 to rotate, and the lint is removed from the first comb teeth 22 under the action of gravity.

[0117] Or as an alternative to the above solutions, such as Figure 6 As shown, the first comb teeth 22 are located on the same side of the first comb back 21 and are parallel to each other.

[0118] In the above alternative, when the filter part is rotated to discharge lint, an opening is formed between the end of the comb teeth and the air duct wall 1, which realizes the directional discharge of lint; and the back of the comb part only rotates relative to the air duct wall 1 without relative displacement, reducing the gap between the filter part and the air duct wall 1.

[0119] The present invention also provides a clothes dryer having the above-mentioned lint filtering device, specifically:

[0120] Example 5

[0121] As another embodiment of the present invention, this embodiment provides a clothes dryer having a lint filter device as described in Embodiment 1.

[0122] In this embodiment, the lint filter is disposed inside the dryer's air duct. The dryer includes...

[0123] The computer board is connected to the drive unit of the lint filter and is used to send a signal to the drive unit when the drying process stops, so that the drive unit can control the rotation of the filter unit.

[0124] Furthermore, dryers also include,

[0125] A flushing device, connected to the inside of the air duct, is used to flush the air duct.

[0126] The computer board is connected to the rinsing device.

[0127] In the above scheme, when the drying process is paused or ended, the filter rotates to remove the lint from the filter. At the same time, the computer board controls the washing device to wash away the lint adhering to the air duct wall 1. The lint is discharged into the drain pipe with the washing water, thus realizing the automatic cleaning of lint.

[0128] Furthermore, after the drying process is complete, the computer board controls the filter section to rotate to clean up the lint, which can prevent the cleaning process from occurring simultaneously with the drying process and causing the lint to return to the drum and contaminate the clothes.

[0129] Example 6

[0130] As another embodiment of the present invention, this embodiment further improves upon embodiment five, as detailed below:

[0131] In this embodiment, the dryer also includes,

[0132] The detection device, which is connected to the computer board, is located in the front air duct of the dryer. It is used to detect the air resistance of the lint filter and send the detection results to the computer board.

[0133] In the above solution, the computer board can determine the accumulation of lint based on the detection results sent by the detection device and control the dryer to clean up the lint.

[0134] The specific method is as follows: when the computer board determines that there is a lot of lint accumulated, the computer board controls the drying process to pause, and then sends a command to the drive unit. The drive unit controls the filter unit to rotate so that the lint falls. The fallen lint is flushed into the drainage channel by the washing water and discharged. Then the drive unit controls the filter unit to rotate to cover the air duct section, and the computer board controls the drying process to continue.

[0135] The above solution achieves the cleaning of lint during the drying process, avoids the accumulation of lint affecting the circulation efficiency of the circulating air, and reduces the air resistance of the filter section, preventing some lint from falling through the gaps when the air resistance is high, thus improving the lint filtration effect.

[0136] Example 7

[0137] As another embodiment of the present invention, this embodiment provides a clothes dryer having the lint filtering device described in Embodiment 3.

[0138] In this embodiment, the structure of the dryer is the same as in embodiment five. After the drying process is completed, the computer board controls the filter to rotate so that the lint falls. The falling lint is collected by the collection unit, and the lint in the air duct is cleaned by the user's manual cleaning.

[0139] Furthermore, dryers also include,

[0140] An alarm device, connected to the computer board, is used to prompt the user to clean the collection section.

[0141] In the above solution, the dryer uses an alarm device to remind the user to clean the collection section, preventing the user from forgetting to clean it and causing a decrease in subsequent drying efficiency, thus improving the stability of the dryer's operation.

[0142] 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 lint filter device, characterized in that, include, The filter section has a comb-like structure that covers the cross-section of the air duct and is rotatably located inside the air duct for filtering lint. A drive unit, which is connected to the filter unit, is used to drive the filter unit to rotate; Comb-like structures include, The comb back is movably connected to the air duct wall; The comb teeth are connected to the comb back and are spaced apart on the comb back, extending outward from the comb back. The filter section includes, The first filter section is located on one side inside the air duct and is movably connected to the air duct wall; it has a comb-like structure, including a first comb back and a first comb tooth. The second filter section is located on the other side of the air duct, opposite to the position of the first filter section, and is movably connected to the air duct wall; it has a comb-like structure, including a second comb back and a second comb tooth. The first filter section is installed in front of the second filter section along the air outlet direction. When the first filter section and the second filter section are properly fitted together, the first comb teeth and the second comb teeth are located on the same plane, forming an inclined surface that covers the cross section of the air duct. The first filter section also includes a third comb tooth, located between two adjacent first comb teeth, extending outward from the back of the first comb tooth; the length of the third comb tooth is shorter than the length of the first comb tooth, and when the first filter section and the second filter section cover the cross section of the air duct, the ends of the third comb tooth and the second comb tooth are opposite each other.

2. The lint filter device according to claim 1, characterized in that, The comb-like structure has multiple comb teeth located on the same side of the comb back.

3. The lint filter device according to claim 2, characterized in that, The comb back is hinged to the air duct wall, and the drive unit drives the filter unit to rotate through the comb back.

4. The lint filter device according to any one of claims 1-3, characterized in that, When the first filter section and the second filter section cooperate to cover the cross section of the air duct, the end of the first comb tooth is close to the back of the second comb, the end of the second comb tooth is close to the back of the first comb, and the first comb tooth and the second comb tooth are alternately arranged on the same plane.

5. The lint filter device according to claim 4, characterized in that, The length of the first comb tooth is equal to the sum of the lengths of the third comb tooth and the second comb tooth.

6. The lint filter according to any one of claims 1-3, characterized in that, It also includes, The collection section has a mesh structure and is detachably connected to the air duct. It is located at the rear of the filter section along the air outlet direction and is used to collect lint.

7. A clothes dryer, characterized in that, It has a lint filter device as described in any one of claims 1-6.

8. The clothes dryer according to claim 7, characterized in that, The lint filter is located inside the dryer's air duct. The dryer also includes... The computer board is connected to the drive unit of the lint filter and is used to send a signal to the drive unit when the drying process stops, so that the drive unit can control the rotation of the filter unit.

Images