Filter screen structure, washing apparatus and cleaning control method and control device thereof

Abstract

The application provides a filter screen structure, a washing equipment and a cleaning control method and control device thereof. The filter screen structure comprises a filter screen body arranged in an air outlet channel. The air outlet channel is formed on a rear cylinder of a drum component. One end of the air outlet channel forms an air outlet inlet on a wall surface of the rear cylinder, and the other end extends outward and forms an air outlet outlet. The filter screen body is located inside the air outlet channel or at the air outlet outlet of the air outlet channel, and the filter screen body does not contact the part where the air outlet inlet is located. According to the technical scheme of the application, the filter screen body is arranged away from the wall surface of the rear cylinder. In the washing process of the washing equipment, the washing water in the rear cylinder generally does not wash the filter screen body, or the possibility of washing the filter screen body by the washing water is reduced. Thus, the problem of the mesh being blocked due to the filter screen body being wet during the washing operation of the washing equipment is avoided from the source.

Description

Technical Field

[0001] This invention relates to the field of laundry equipment technology, and in particular to a filter structure, washing equipment and its cleaning control method and control device. Background Technology

[0002] Among existing laundry equipment, there are dryers specifically designed for drying clothes, as well as other types of laundry equipment with drying functions. During the drying process, lint can easily enter the air duct, thus covering the heating elements or centrifugal fan blades, posing a safety hazard and reducing the heat exchange efficiency of these components. Currently, a filter is generally installed between the air outlet and the air duct to filter out lint from the clothes, thereby reducing the amount of lint entering the air duct.

[0003] However, to ensure filtration effectiveness, the mesh size of current filters is generally small. Once the wash water wets the filter, its performance will be greatly affected. For example, wash water may directly clog the filter mesh, or lint from clothing may adhere firmly to the wet filter, causing blockage. Even substances from the wash water (such as limescale formed by ions in the water) may precipitate and adhere to the filter. All of these situations will reduce the airflow inside the equipment, affecting the filtration of lint. Reduced airflow will also significantly decrease drying efficiency, and may even result in clothes not drying completely.

[0004] In view of this, the present invention designs the filter structure to solve the problem of filter clogging caused by being wetted from the source, thereby solving the problem of poor filtration and drying effect in current washing equipment. Summary of the Invention

[0005] To address the problem that existing washing equipment's filters are easily wetted, affecting filtration and drying performance, this invention proposes a filter structure, washing equipment, and its cleaning control method and control device.

[0006] In a first aspect, the present invention proposes a filter structure comprising a filter body disposed in an air outlet channel, the air outlet channel being formed on the rear cylinder of a roller component, one end of the air outlet channel forming an air outlet inlet on the wall surface of the rear cylinder, and the other end extending outward to form an air outlet, the filter body being located inside the air outlet channel or at the air outlet of the air outlet channel, and the filter body not contacting the portion where the air outlet inlet is located.

[0007] In one embodiment, the air outlet channel is located at a height higher than the center of the rear cylinder, and the air outlet channel extends upward toward the rear cylinder.

[0008] In one embodiment, the axis of the air outlet duct corresponding to its extension direction is a secant of the object circle corresponding to the rear cylinder, the object circle being the circle containing the circular outline of the rear cylinder on its cross-section, and the cross-section being a section perpendicular to the axis of the rear cylinder.

[0009] In one embodiment, the direction in which the air outlet channel extends outward from the air outlet inlet is a first direction, and the direction in which the washing water in the rear drum flows along the wall of the rear drum at the air outlet in the unidirectional rotation mode of the drum component is a second direction, and the angle β between the first direction and the second direction is an obtuse angle.

[0010] In one embodiment, the filter body is inclined relative to the air outlet channel, and there is an angle between the surface of the filter body and the air passage section of the air outlet channel.

[0011] In one embodiment, the angle α between the filter body and the air passage section of the air outlet is in the range of -30° to 30°.

[0012] In one embodiment, the tilt direction of the filter body is consistent with the tilt direction of the wall at the target position on the rear cylinder, and the target position is the location of the air outlet inlet of the air outlet channel on the rear cylinder.

[0013] In one embodiment, the filter body has a planar structure or an arc-shaped structure.

[0014] In one embodiment, the filter body has at most one reinforcing rib that extends along the surface of the filter body.

[0015] In one embodiment, the reinforcing rib extends in a direction parallel to the tilt direction of the inclined filter body.

[0016] In one embodiment, the system further includes a support, on which the filter body is fixed, and the support is capable of being securely fastened to the air outlet of the air outlet channel relative to the air outlet inlet.

[0017] In one embodiment, a sealing ring is also included, which is disposed at the air outlet and is capable of making sealing contact with the bracket.

[0018] Secondly, the present invention provides a washing device that includes the above-mentioned filter structure, thereby possessing all the technical effects it possesses.

[0019] Thirdly, the present invention provides a cleaning control method for the above-mentioned filter structure or washing equipment, comprising:

[0020] Determine the current running cycle of the drying program in the washing equipment;

[0021] Determine whether the completed cycle has reached the preset cleaning cycle;

[0022] When the preset cleaning cycle is reached after the running cycle, the cleaning program is initiated to rinse the filter and the running cycle is reset to zero.

[0023] After rinsing the filter screen, the filter screen is heated and / or an airflow is output to the filter screen to cause the water film on the rinsed filter screen to break.

[0024] Fourthly, the present invention provides a cleaning control device, comprising:

[0025] The cycle detection module is used to determine the current cycle completed in the drying program of the washing equipment;

[0026] The judgment module is used to determine whether the running cycle has reached the preset cleaning cycle;

[0027] The operation control module is used to control the entry of the cleaning program to rinse the filter screen when the preset cleaning cycle is reached, and to set the preset cleaning cycle to zero; and after rinsing the filter screen, to control the heating of the filter screen and / or to output airflow to the filter screen so as to rupture the water film on the rinsed filter screen.

[0028] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of the present invention can be achieved.

[0029] The filter structure, washing equipment, and cleaning control method and device provided by this invention have at least the following advantages compared with the prior art:

[0030] The present invention discloses a filter structure, washing equipment, and cleaning control method and control device, wherein the filter body is located in the middle position or at one end of the air outlet channel, especially at the end away from the corresponding rear drum. In this way, during the washing process of the washing equipment, the washing water in the rear drum generally will not wash the filter body, or reduce the possibility of the filter body being washed by the washing water. This avoids the problem of mesh blockage caused by the filter body being wetted during the washing operation of the washing equipment, thereby ensuring the ventilation of the filter body in the subsequent drying process, without affecting the airflow and ensuring the drying effect. Attached Figure Description

[0031] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0032] Figure 1A cross-sectional view of the assembly structure of one of the filter structures and the air outlet channel of the present invention is shown.

[0033] Figure 2 Showing Figure 1 A magnified view of a section at point A in the middle;

[0034] Figure 3 Showing Figure 1 A three-dimensional view of the assembly structure shown;

[0035] Figure 4 Showing Figure 3 Exploded view of the structure shown;

[0036] Figure 5 Showing Figure 1 A schematic diagram of the front structure of the filter section;

[0037] Figure 6 Showing Figure 1 A schematic diagram of the reverse structure of the filter section;

[0038] Figure 7 A schematic diagram of another assembly structure of the filter structure and air outlet channel of the present invention is shown;

[0039] Figure 8 An exploded view of another assembly structure of the filter screen and air outlet channel of the present invention is shown;

[0040] Figure 9 Showing Figure 8 A schematic diagram of the filter section in the image;

[0041] Figure 10 A schematic diagram of the overall structure of the drum component of the washing device in which the filter structure of the present invention is located is shown;

[0042] Figure 11 The main flowchart of the cleaning control method of the present invention is shown.

[0043] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0044] Figure label:

[0045] 1. Filter body; 2. Air outlet channel; 21. Air outlet inlet; 22. Air outlet; 23. First screw hole; 3. Rear cylinder; 4. Support; 41. Reinforcing rib; 42. Second screw hole; 5. Sealing ring; 6. Corrugated pipe; 7. Flushing nozzle; 8. Centrifugal fan; 9. Air inlet channel. Detailed Implementation

[0046] The invention will now be further described with reference to the accompanying drawings.

[0047] Example 1

[0048] An embodiment of the present invention provides a filter structure, including a filter body 1 disposed in an air outlet channel 2. The air outlet channel 2 is formed on the rear cylinder 3 of the roller component. One end of the air outlet channel 2 forms an air outlet inlet 21 on the wall surface of the rear cylinder 3, and the other end extends outward to form an air outlet 22. The filter body 1 is located inside the air outlet channel 2 or at the air outlet 22 of the air outlet channel 2, and the filter body 1 does not contact the part where the air outlet inlet 21 is located.

[0049] Specifically, as shown in the attached diagram. Figure 1 As shown in the figure, in this embodiment, the filter body 1 is located in the middle position between the two ends inside the air outlet channel 2 (or it can be located at the air outlet 22 of the air outlet channel 2, which is far away from the air outlet 21, as shown in the figure). Figure 7 As shown, the filter body 1 does not contact the part where the air outlet 21 is located, that is, the air outlet 21 at the end of the air outlet channel 2 is away from the filter body 1. In this way, the filter body 1 is actually far away from the internal area of ​​the rear drum 3. During the washing process of the washing equipment, the washing water in the rear drum 3 generally will not wash the filter body 1, or in other words, the possibility of the filter body 1 being washed by the washing water is reduced. Thus, the formation of a water film on the filter body 1 due to the surface tension of water during the washing operation of the washing equipment is avoided from the source, thereby avoiding the formation of a water film that will clog the mesh, and thus avoiding the water film on the filter body 1 affecting the airflow during the subsequent drying process. Furthermore, a water film or washing water that has not formed a water film on the filter body 1 may also cause lint to adhere to the mesh, further affecting the ventilation of the filter body 1. Furthermore, after the filter body 1 is wetted, during the subsequent drying process, the hot air generated by the drying process will heat the filter body 1, causing the washing water on the filter body 1 to evaporate. This may cause certain substances in the water to precipitate and adhere to the filter body 1, resulting in the pores being blocked, such as the precipitation of scale.

[0050] It should be noted that, optionally, the filter body 1 is located away from the air outlet 21 at a certain distance. The specific value of this distance can be determined based on the size of the air outlet 21 and / or the kinetic energy of the washing water in the rear drum 3. Specifically, if the area of ​​the air outlet 21 is small, the probability of washing water entering the air outlet channel 2 through the air outlet 21 and the distance it can penetrate further into the air outlet channel 2 are both small (the penetration distance depends on inertia; a small air outlet 21 area results in less water volume and thus less inertia). In this case, the distance between the filter body 1 and the air outlet 21 can be relatively reduced. If the area of ​​the air outlet 21 is large, the probability of washing water entering the air outlet channel 2 through the air outlet 21 and the distance it can penetrate further into the air outlet channel 2 will both increase. In this case, the distance between the filter body 1 and the air outlet 21 can be relatively increased. Similarly, the specific value of the distance between the filter body 1 and the air outlet 21 can also be determined based on the kinetic energy (water volume, velocity) of the washing water in the rear drum 3.

[0051] Preferably, based on the common dimensions and specifications of the roller component and the air outlet 21, the minimum distance between the filter body 1 and the air outlet 21 can be 2cm, and the maximum distance can theoretically be as large as possible, which can be determined according to the length of the air outlet duct 2 and the corresponding installation requirements.

[0052] Refer to the attached diagram. Figure 1 and Figure 3 The air outlet duct 2 is positioned at a height higher than the center of the rear drum 3, and extends upwards from the rear drum 3. Washing water can only enter the air outlet duct 2 upwards. Due to its own gravity, the upward flow of washing water faces significant resistance, further reducing the depth (distance) of washing water entering the air outlet duct 2 through the air outlet inlet 21. This further prevents the filter screen 1 inside the air outlet duct 2 from being washed by the washing water. Furthermore, the upward extension of the air outlet duct 2 above the rear drum 3 also takes into account the size of the washing equipment, minimizing its width.

[0053] Refer to the attached diagram. Figure 1 and Figure 10 The axis of the air outlet duct 2, corresponding to its extension direction, is the secant line of the object circle corresponding to the rear cylinder 3. The object circle is the circle containing the circular outline of the rear cylinder 3 on its cross-section (the rear cylinder 3 is a circular cylindrical structure with a circular outline on its cross-section), and the cross-section is a section perpendicular to the axis of the rear cylinder 3. That is, the air outlet duct 2 cannot be located at the tangent position of the outermost edge of the rear cylinder 3 (refer to the attached figure). Figure 1 (The far left), because the washing water can flow directly upwards at that point of tangency (see attached diagram). Figure 1(As shown in the case of the drum structure rotating clockwise), the washing water in the rear drum 3 flows directly towards the filter body 1 in the air outlet channel 2 at this tangent point, making it very easy to directly wash the filter body 1 in the air outlet channel 2. Therefore, by setting the air outlet channel 2 at the secant position of the circle corresponding to the rear drum 3, even if the washing water reaches the air outlet channel 2, it will have a certain angle between the air outlet inlet 21 and the axial direction of the air outlet channel 2, instead of directly facing the filter body 1 in the air outlet channel 2, thus avoiding direct washing of the filter body 1.

[0054] Refer to the attached diagram. Figure 1 The secant line corresponding to the axis of the air outlet channel 2 is close to the target tangent line parallel to the secant line of the object circle. Based on the basic structural design of the air outlet channel 2 being positioned above the rear cylinder 3 and extending upwards, and considering that the air outlet channel 2 cannot be positioned with a tangent line, and since components such as the centrifugal fan 8, air inlet channel 9, corrugated pipe 6 connecting to the air outlet channel 2, and flushing nozzle 7 will also be located above the rear cylinder 3, the air outlet channel 2 can only be positioned above the rear cylinder 3 near the edge, i.e., its position is close to the target tangent line of the edge. This satisfies the overall layout requirements of all components.

[0055] Refer to the attached diagram. Figure 2 The direction in which the air outlet duct 2 extends outward from the air outlet 21 is the first direction. The direction in which the washing water in the rear drum 3 flows along the wall of the rear drum 3 at the air outlet 21 (tangential direction) in the unidirectional rotation mode of the drum component is the second direction. The angle β between the first and second directions is an obtuse angle. Generally, the drum component of washing equipment has both forward and reverse rotation functions, meaning that the washing water in the rear drum 3 can flow clockwise or counterclockwise. (Refer to the attached diagram.) Figure 1By positioning the air outlet channel 2 above the rear drum 3, positioning the filter body 1 within the air outlet channel 2 away from the air outlet inlet 21 corresponding to the rear drum 3, and positioning the air outlet channel 2 at the secant position of the corresponding circle of the rear drum 3, these structural designs can prevent washing water from washing into the filter body 1 in the air outlet channel 2, or reduce the possibility of the filter body 1 being washed, regardless of the direction of the washing water flow. Simultaneously, considering the unidirectional rotation of the drum component in the washing equipment, and taking into account that the drum speed is generally very high (e.g., high-speed spin-drying) compared to the low-speed forward and reverse rotation in normal washing conditions, the centrifugal force of the washing water is also relatively large. This could allow the washing water to penetrate further into the air outlet channel 2 and come into contact with the filter body 1, which would otherwise be out of reach. Therefore, based on the structural design that positions the filter body 1 away from the air outlet channel 2 and closer to the rear drum 3, it is necessary to further consider the relative position of the air outlet channel 2 on the rear drum 3 in conjunction with the unidirectional rotation direction of the drum. Therefore, the filter structure was further designed, specifically by determining the left and right positions of the air outlet channel 2 on the rear cylinder 3 based on the specific direction of the unidirectional rotation of the drum component. (Refer to the attached diagram.) Figure 1 This refers to determining whether the air outlet duct 2 is located on the left or right side of the rear duct 3. Specifically, refer to the attached diagram. Figure 1 As indicated by the arrow, the drum component rotates counterclockwise. At this time, the air outlet duct 2 needs to be positioned on the left side of the rear drum 3, meaning the vector angle β between the extension direction of the air outlet duct 2 and the flow direction of the washing water is an obtuse angle. This ensures that the flow direction of the washing water is completely opposite to the extension direction of the air outlet duct 2, further preventing excessive washing water from entering the air outlet duct 2. Similarly, refer to the attached diagram. Figure 1 If the unidirectional rotation mode of the roller component is clockwise, then the air outlet duct 2 needs to be set on the right side of the rear cylinder 3, and the angle β between the first direction and the second direction also satisfies the condition of an obtuse angle.

[0056] It should be noted that the unidirectional rotation mode of the washing equipment can be unidirectional rotation in washing mode, spin-drying mode, or other modes. The direction of unidirectional rotation is usually set at the factory; it is either clockwise or counter-clockwise and will not change arbitrarily. Therefore, the position of the filter structure on the rear drum 3 can be determined by referring to the product's initial design, or the direction of the drum's unidirectional rotation can be designed based on the position of the filter structure on the rear drum 3.

[0057] Refer to the attached diagram. Figures 4 to 6The filter structure also includes a support 4, on which the filter body 1 is fixed. The support 4 can be fixedly fastened to the air outlet 22 of the air outlet channel 2 relative to the air outlet 21. The filter body 1 is installed in the air outlet channel 2 via the support 4. In this embodiment, the support 4 is generally cylindrical, with the filter body 1 disposed at one end of the support 4. One end of the support 4 with the filter body 1 can extend into the air outlet channel 2 through the air outlet 22, and the other end can be fastened to the air outlet 22 of the air outlet channel 2, thus realizing the installation of the filter body 1. Mounting ribs are formed on the outer circumferential surface of the cylindrical structure of the support 4. (See attached figure) Figure 5 and Figure 6 As shown, the mounting ribs serve two purposes: first, to improve the structural strength of the bracket 4; and second, to allow for an interference fit with the inner wall of the air outlet duct 2, facilitating installation. Furthermore, the bracket 4 is connected to the air outlet duct 2 via a second screw hole 42 and a first screw hole 23 using fasteners, further enhancing the installation effect.

[0058] Further, please refer to the attached diagram. Figure 8 The filter structure also includes a sealing ring 5, which is located at the air outlet 22 and can make sealing contact with the bracket 4. The sealing ring 5 is used to achieve a seal between the filter body 1 and the air outlet channel 2.

[0059] Example 2

[0060] This embodiment is an improvement on embodiment 1. Some of the same content is the same as in embodiment 1, and will not be repeated in this embodiment.

[0061] The main improvement in this embodiment is to achieve rapid rupture of the water film formed on the filter body 1. This ensures that even if a water film forms on the filter body 1 (due to partial washing water contact with the filter body 1 or active rinsing), the overall airflow through the filter remains unaffected by the rapid rupture of the water film. Simultaneously, this embodiment also considers ensuring that even if the mesh becomes somewhat clogged, it will not immediately lead to a significant reduction in ventilation. The main technical means is to lengthen the mesh length or increase the mesh area of ​​the filter body 1 without affecting the filtration effect (achieved by keeping the projected area of ​​the mesh on the cross-section of the air outlet channel 2 unchanged and increasing the area of ​​the mesh itself). Specifically, this can be achieved by changing the shape and structure of the filter body 1 itself, changing the installation structure of the filter body 1, or a combination of both methods.

[0062] Refer to the attached diagram. Figure 5 and Figure 6The shape and structure of the filter body 1 are changed, and the filter body 1 is set as an arc surface structure, which can be a circular arc surface, a spherical surface, or an irregular arc surface (curved surface). In this embodiment, the filter body 1 is set as a circular arc surface that matches the shape of the inner cylinder wall. The projected area of ​​the mesh of the filter body 1 on the cross-section of the air outlet channel 2 remains unchanged, but the surface area of ​​the filter where the mesh is located increases, and the area of ​​a single mesh itself increases. Refer to the attached drawings. Figure 1 The radius of curvature of the arc surface structure (curved surface structure) of the filter body 1 may be the same as or different from the radius of curvature of the inner cylinder wall, but the overall direction is the same, that is, they both bend in one direction to form the arc surface structure.

[0063] Refer to the attached diagram. Figure 7 The installation structure of the filter body is changed so that the filter body 1 is inclined relative to the air outlet channel 2, and there is an angle (planar structure) between the surface of the filter body 1 and the air passage section of the air outlet channel 2. The projected area of ​​the mesh of the inclined filter body 1 on the cross section of the air outlet channel 2 remains unchanged, but the area of ​​a single mesh is increased.

[0064] Refer to the attached diagram. Figure 1 At the same time, the shape and installation structure of the filter body are changed, and the filter body 1 is set as an arc surface structure and is inclined in the air outlet channel 2.

[0065] The above methods can all achieve rapid water film rupture by lengthening the mesh length or increasing the mesh area of ​​the filter body 1 without affecting the filtration effect. The principle is as follows: the water film formed on the mesh of the filter body 1 exhibits aggregation. Due to the surface tension of water and the boundary layer of the water film, the overall thickness of the water film is relatively thick. When the water film is thinned by external forces (equipment vibration, airflow impact, etc.) and tends to rupture, the water boundary layer continuously replenishes the thinner water film in the middle, maintaining its thickness. Increasing the mesh area lengthens the trajectory of the water from the boundary layer to the middle of the water film, hindering water aggregation in the middle of the water film. Therefore, the center of the water film does not receive water replenishment to maintain its thickness, causing its thickness to decrease rapidly and ultimately achieving rapid rupture. Furthermore, for the inclined filter body 1, most of the water forming the water film will accumulate at the bottom boundary of the corresponding mesh holes under the action of gravity. The upward replenishment of water to the middle and upper parts of the water film will be hindered by gravity. Therefore, the amount of water in the upper and middle parts of the water film is less, making the water film more prone to cracking.

[0066] Furthermore, the curved and inclined filter screens can increase the overall surface area within a fixed air outlet channel 2 size, resulting in a larger overall mesh surface area and making it less prone to clogging. Even if some degree of clogging occurs, the ventilation of the filter body 1 can be guaranteed immediately. Further, the mesh size of the filter body 1 is designed such that while higher mesh sizes result in better filtration of lint, they also tend to form a water film under the surface tension of water, which is difficult to break. Therefore, preferably, the mesh size of the filter body 1 is in the range of 100-130 mesh.

[0067] Furthermore, in this embodiment, the filter body 1 is made of plastic PET filter screen because the lint adheres tightly to the metal mesh and is not easily washed away by water flow; while the lint adhering to the plastic PET filter screen is looser and easier to wash, thereby improving the washing effect.

[0068] Refer to the attached diagram. Figure 2 and 7 The angle α between the filter body 1 and the air passage section 2 ranges from -30° to 30°. The sign of the angle indicates the tilt direction of the filter body 1 relative to its corresponding air passage section, as shown in the attached figure. Figure 2 If the relative airflow cross-section shown is slanted upwards, then the angle α is positive. The tilt angle α of the filter body 1 is mainly considered because an excessively large tilt angle would require extending the length of the air outlet duct 2, increasing the difficulty of the internal structural layout of the washing equipment and the manufacturing difficulty of the filter body 1. Therefore, a tilt angle α within the range of 30° is more reasonable. Furthermore, in order to ensure a certain slope to ensure the effect of rapid water film rupture, the preferred angle range of the tilt angle α is 15° to 30°. For the planar structure of the filter body 1, this tilt angle α is the angle between its plane and the airflow cross-section, as shown in the attached figure. Figure 7 As shown in the attached figure; for the curved filter body 1, the included angle α can be the angle between the plane (cut surface) containing the tangent of the filter body layout area (preferably at the vertex of the curved surface) and the air passage section. Figure 2 As shown, it can also be the angle between the plane where the overall orientation of the filter body 1 is located and the cross section of the air passage, for example, the line connecting the starting point and the ending point of the inclined sides of the filter body 1 is taken as the direction of the overall orientation.

[0069] Refer to the attached diagram. Figure 1The tilt direction of the filter body 1 is consistent with the tilt direction of the wall at the target position on the rear cylinder 3. The target position is the location of the air outlet 21 of the air outlet channel 2 on the rear cylinder 3. This ensures that the distance between each position of the filter body 1 and the wall of the rear cylinder 3 (the distance in the extension direction of the air outlet channel 2) is basically uniform (preferably equal), and there will be no local positions of the filter body 1 that are relatively far away from the air outlet 21, or local positions that are too close to the air outlet 21. This ensures that the filter body 1 will not be wetted by the washing water in the rear cylinder 3, or in other words, that most of the washing water will not come into contact with the filter body 1.

[0070] Refer to the attached diagram. Figure 5 and Figure 6 The filter body 1 does not have reinforcing ribs, which effectively prevents water film formation at the locations of the reinforcing ribs. However, without reinforcing ribs, the filter body 1 requires a higher strength structural design. For example, high-strength materials can be used; or the structure can be designed as shown in the attached diagram. Figure 5 and Figure 6 The curved surface design shown; or relative to the attached drawing. Figure 5 and Figure 9 The filter body 1 is designed in a circular shape, while the filter body 1 is designed in a different shape (essentially, it is an adjustment of the cross-sectional shape of the air outlet 2).

[0071] Regarding the shape design, the strength of the filter body 1 can be improved in two ways. First, by maintaining the area and increasing the perimeter, for example, compared to the attached diagram... Figure 5 and Figure 9 In the first method, the filter body 1 (the cross-sectional shape of the air outlet duct 2) is triangular, while the shape of the filter body 1 is circular. By changing the shape, the perimeter is increased while keeping the area constant, thereby expanding the area where the mesh surface of the filter body 1 connects with the surrounding frame. Secondly, the layout span is reduced, for example, by changing the circular filter body 1 to an elliptical shape, the local span is reduced, improving the impact resistance.

[0072] Refer to the attached diagram. Figure 8 and Figure 9 The filter body 1 has a reinforcing rib 41 extending along its surface. The reinforcing rib 41 ensures the stability of the filter surface structure, especially when the mesh area is large. However, too many reinforcing ribs 41 would mesh the filter, making each mesh an independent water film breaking unit, significantly affecting water film rupture. Therefore, only one reinforcing rib 41 is designed. This single reinforcing rib 41 is positioned at the center of the filter body 1, ensuring equal and relatively large distances between it and both sides of the filter body 1. This avoids the rib being too close to one side, preventing the formation of a mesh structure between the reinforcing rib 41 and the filter edge structure that would otherwise form a water film.

[0073] Preferably, in order to prevent the reinforcing ribs 41 from blocking the water (washing water or active rinsing water) on the filter body and to ensure that most of the water reaching the filter body 1 can flow away quickly, the extension direction of the reinforcing ribs 41 is set to be parallel to the tilting direction of the inclined filter body 1.

[0074] Example 3

[0075] This embodiment is a structural change based on the foregoing embodiments. Some of the same content is the same as that in the foregoing embodiments, and will not be repeated in this embodiment.

[0076] Refer to the attached diagram. Figure 7 and Figure 8 The filter body 1 is set inside the air outlet 2 and located at the air outlet 22 of the air outlet 2. This maximizes the distance between the filter body 1 and the air outlet 21 of the corresponding rear cylinder 3 wall of the air outlet 2, which can basically completely prevent the washing water in the rear cylinder 3 from contacting the filter body 1. Therefore, the filter body 1 can be set along the horizontal plane, that is, the included angle α of the filter body 1 is 0°.

[0077] Furthermore, the filter body 1 is positioned at the air outlet 22 of the air outlet channel 2. Because the distance between it and the wall of the rear cylinder 3 is large enough, the tilt direction of the filter body 1 does not need to be consistent with the tilt direction (direction) inside the rear cylinder 3; in principle, it can be tilted in any direction. Preferably, the top of the tilted filter body 1 corresponds to the direction of the rinsing nozzle 7, so that the rinsing water flows down from the top of the filter body 1, ensuring the rinsing effect. Refer to the attached drawings. Figure 7 The top of the tilted filter body 1 faces upward to the right because the rinsing nozzle 7 is located at the upward to the right, as shown in the attached diagram. Figure 10 .

[0078] Example 4

[0079] An embodiment of the present invention provides a washing device that includes the above-described filter structure, thereby possessing all the technical effects described herein.

[0080] Example 5

[0081] Refer to the attached diagram. Figure 11 The present invention provides a cleaning control method for the aforementioned filter structure or washing equipment, comprising:

[0082] Step S100: Determine the current number of runs of the drying program of the washing equipment. The number of runs is the current number of runs and / or the duration of the drying program of the washing equipment.

[0083] Step S200: Determine whether the preset cleaning cycle has been reached after the current cycle has been completed;

[0084] Step S300: When the preset cleaning cycle is reached after the running cycle, the cleaning program is entered to rinse the filter and the running cycle is reset to zero;

[0085] Step S310: After rinsing the filter screen, heat the filter screen and / or output airflow to the filter screen to break the water film on the rinsed filter screen;

[0086] Specifically, either the number of cycles completed or the duration of the cleaning cycle must be satisfied, or both must be satisfied. If the number of cycles completed and / or the duration of the drying program reach the preset cleaning cycle, it indicates that a certain amount of lint has been adsorbed and accumulated on the filter screen. At this point, the cleaning program is initiated, using a rinsing nozzle to rinse and clean the filter screen. The water inlet valve for rinsing the filter screen is controlled by an independent valve, with a preferred flow rate of 8L / min, which can be adjusted according to the spraying effect. Simultaneously, the number of cycles completed in the drying program is reset to zero. After rinsing, the filter screen is heated and / or airflow is supplied to it to externally interfere with the water film formed on the filter screen, accelerating its rupture. This prevents the water film formed on the filter screen after rinsing from affecting the airflow in subsequent drying processes.

[0087] Step S400: If the preset cleaning cycle has not been reached in the running cycle, the corresponding washing program is entered normally. When the drying program in the washing program is entered, the running cycle is updated; the number of runs in the running cycle is incremented by 1 and / or the running time of the currently entered normal drying program is included in the running time of the running cycle.

[0088] Specifically, if a washing instruction is issued after the step of determining whether the filter needs cleaning based on the current running cycle of the drying program, the corresponding washing program will be initiated. If it is only a timed or untimed check to determine whether the filter needs cleaning, and there is no subsequent washing instruction, the system will enter standby mode after the determination is completed.

[0089] Step S410: Determine whether the updated running cycle has reached the preset cleaning cycle;

[0090] Step S420: Based on the judgment result, determine whether to enter the cleaning program to rinse the filter screen before entering the drying program next time.

[0091] Specifically, when a drying program is entered after step S400, the running cycle of the drying program needs to be updated, and at the same time, it needs to be determined again whether the updated running cycle has reached the preset cleaning cycle. In this way, when the washing equipment is started next time, it is not necessary to make a judgment again, and it can be directly determined whether the filter needs to be cleaned.

[0092] Example 6

[0093] An embodiment of the present invention provides a cleaning control device, comprising:

[0094] The cycle detection module is used to determine the current cycle completed in the drying program of the washing equipment;

[0095] The judgment module is used to determine whether the preset cleaning cycle has been reached after the running cycle.

[0096] The operation control module is used to control the entry of the cleaning program to rinse the filter screen when the preset cleaning cycle is reached, and to reset the number of cycles to zero; and after rinsing the filter screen, it controls the heating of the filter screen and / or outputs airflow to the filter screen to cause the water film on the rinsed filter screen to break.

[0097] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", 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 limitations on this invention.

[0098] While the invention has been described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A filter structure, characterized in that, Includes a filter body disposed in an air outlet channel, the air outlet channel being formed on the rear cylinder of the roller component, one end of the air outlet channel forming an air outlet inlet on the wall of the rear cylinder, and the other end extending outward to form an air outlet, the filter body being located inside the air outlet channel or at the air outlet of the air outlet channel, and the filter body not contacting the part where the air outlet inlet is located; The filter body has an arc-shaped structure and is inclined relative to the air outlet channel. The angle α between the surface of the filter body and the air passage section of the air outlet channel is in the range of -30° to 30°. The angle α is the angle between the tangent at the vertex of the curved surface of the filter body and the air passage section of the air outlet channel. The air outlet channel is located at a height higher than the center of the rear cylinder, and the air outlet channel extends upward toward the rear cylinder. The axis of the air outlet channel corresponding to its extension direction is the secant of the object circle corresponding to the rear cylinder. The object circle is the circle containing the circular outline of the rear cylinder on its cross-section. The cross-section is a section perpendicular to the axis of the rear cylinder. The direction in which the air outlet channel extends outward from the air outlet inlet is the first direction, and the direction in which the washing water in the rear drum flows along the wall of the rear drum at the air outlet in the unidirectional rotation mode of the drum component is the second direction, and the angle β between the first direction and the second direction is an obtuse angle. The tilting direction of the filter body is consistent with the tilting direction of the wall at the target position on the rear cylinder, and the target position is the location of the air outlet inlet of the air outlet channel on the rear cylinder; The filter body is located at the air outlet, which is far from the air inlet.

2. The filter structure according to claim 1, characterized in that, The filter body has at most one reinforcing rib, which extends along the surface of the filter body.

3. The filter structure according to claim 2, characterized in that, The reinforcing ribs extend in a direction parallel to the tilt direction of the inclined filter body.

4. The filter structure according to claim 1, characterized in that, It also includes a bracket, the filter body is fixed on the bracket, and the bracket can be fixedly fastened to the air outlet of the air outlet channel relative to the air outlet inlet.

5. The filter structure according to claim 4, characterized in that, It also includes a sealing ring, which is disposed at the air outlet and can make sealing contact with the bracket.

6. A washing device, characterized in that, It includes the filter structure as described in any one of claims 1 to 5.

7. A filter structure according to any one of claims 1 to 5 or a cleaning control method for a washing device according to claim 6, characterized in that, include: Determine the current running cycle of the drying program in the washing equipment; Determine whether the completed cycle has reached the preset cleaning cycle; When the preset cleaning cycle is reached after the running cycle, the cleaning program is initiated to rinse the filter and the running cycle is reset to zero. After rinsing the filter screen, the filter screen is heated and / or an airflow is output to the filter screen to cause the water film on the rinsed filter screen to break.

8. A cleaning control device for a filter structure according to any one of claims 1-5, characterized in that, include: The cycle detection module is used to determine the current cycle completed in the drying program of the washing equipment; The judgment module is used to determine whether the running cycle has reached the preset cleaning cycle; The operation control module is used to control the entry of the cleaning program to rinse the filter when the preset cleaning cycle is reached, and to set the number of operating cycles to zero. After rinsing the filter screen, the filter screen is heated and / or airflow is output to the filter screen to cause the water film on the rinsed filter screen to break.

Images