Dryer system, dryer, and washer-dryer

Abstract

The present invention relates to the field of clothes drying equipment. The clothes drying system includes a filter screen, a spraying device and an air duct. The filter screen is installed in the air duct. The filter screen includes a base frame and a mesh surface arranged in the base frame. The spraying port of the spraying device faces the mesh surface; the mesh surface has a first area and a second area. A plurality of first mesh holes are distributed in the first area, and a plurality of second mesh holes are distributed in the second area. The cross-sectional area of a single first mesh hole is larger than the cross-sectional area of a single second mesh hole. The present invention also provides a clothes dryer and a washing and drying integrated machine adopting the foregoing clothes drying system. It is beneficial to reduce the difficulty of water film rupture in the first area. The water film rupture in the first area drives the water film rupture in the second area, and then it is beneficial to reduce the difficulty of water film rupture on the entire mesh surface. In this way, when the clothes drying system is running, the water film on the mesh surface can rupture smoothly, which is beneficial to the normal circulation of air flow in the air duct and is beneficial to avoiding affecting the normal performance of the clothes drying system.

Description

Technical Field

[0001] The present invention relates to clothes drying equipment, and more particularly to a clothes drying system, a clothes dryer, and a washing and drying integrated machine. Background Art

[0002] A filter screen is provided in the air duct of a clothes dryer to prevent sundries such as lint from entering the fins of the evaporator. The filter screen accumulated with sundries such as lint is rinsed with sprayed water. However, after being rinsed with sprayed water, the filter screen is prone to form a water film, which blocks the air duct, resulting in abnormal circulation of the air flow in the air duct, affecting the normal performance of the clothes dryer, and even causing the clothes dryer to stop abnormally due to poor air flow. Summary of the Invention

[0003] One object of the present invention is to provide a clothes drying system that is conducive to the rapid rupture of the water film on the filter screen.

[0004] To achieve the above object, the clothes drying system provided by the present invention includes a filter screen, a spraying device, and an air duct. The filter screen is installed in the air duct. The filter screen includes a base frame and a mesh surface provided in the base frame. The spraying port of the spraying device faces the mesh surface. The mesh surface has a first area and a second area. A plurality of first mesh holes are distributed in the first area, and a plurality of second mesh holes are distributed in the second area. The cross-sectional area of a single first mesh hole is larger than the cross-sectional area of a single second mesh hole.

[0005] As can be seen from the above, through the structural design of the clothes drying system of the present invention, it is conducive to reducing the difficulty of water film rupture in the first area. The rupture of the water film in the first area drives the rupture of the water film in the second area, and then it is conducive to reducing the difficulty of water film rupture on the entire mesh surface. In this way, when the clothes drying system is operating, the water film on the mesh surface can be smoothly ruptured, which is conducive to the normal circulation of the air flow in the air duct and is conducive to avoiding affecting the normal performance of the clothes drying system.

[0006] A preferred solution is that the cross-sectional area of a single first mesh hole is 1.5 to 2.5 times the cross-sectional area of a single second mesh hole.

[0007] As can be seen from the above, this is conducive to avoiding excessive influence on the blocking performance of the filter screen for sundries such as lint, and at the same time is conducive to reducing the difficulty of water film rupture.

[0008] Another preferred solution is that the area of the first area is less than or equal to one-tenth of the total area of the mesh surface.

[0009] As can be seen from the above, this is conducive to avoiding excessive influence on the blocking performance of the clothes drying system for sundries such as lint.

[0010] Still another preferred solution is that there are at least two first areas, and the sum of the areas of each first area is less than or equal to one-tenth of the total area of the mesh surface.

[0011] As can be seen from the above, after the water film in the first area breaks, it can drive the water film in the second area to break more evenly, and this is beneficial to avoiding excessive influence on the blocking performance of the lint filter system for sundries such as lint.

[0012] Another preferred solution is that the mesh surface is formed by intertwining strands, and the diameter of the strands separating the first area and the second area is less than or equal to 2 times the diameter of the other strands forming the mesh surface.

[0013] As can be seen from the above, this is beneficial to reducing the blocking effect of the strands separating the first area and the geothermal area on the sprayed water, and after the water film in the first area breaks, it can smoothly drive the water film in the second area to break.

[0014] Another preferred solution is that it further includes a blowing device, and the air outlet of the blowing device faces the first area.

[0015] As can be seen from the above, under the blowing of the blowing device, it is further beneficial to the breakage of the water film in the first area, and then drives the breakage of the water film on the entire mesh surface.

[0016] Another preferred solution is that the mesh surface intersects with the horizontal plane, and the first area is located at the upper part of the mesh surface.

[0017] As can be seen from the above, this can further facilitate reducing the difficulty of water film breakage in the first area by means of the gravity effect, and further facilitate reducing the difficulty of water film breakage on the mesh surface.

[0018] A further solution is that the cross-sectional shape of the first mesh hole is diamond-shaped, and one diagonal of the first mesh hole is along the horizontal direction; and / or the cross-sectional shape of the second mesh hole is diamond-shaped, and one diagonal of the second mesh hole is along the horizontal direction.

[0019] As can be seen from the above, this is beneficial to increasing the span of the first mesh hole and / or the second mesh hole in the vertical direction, beneficial to creating a situation where the upper part is thin and the lower part is thick in the first mesh hole and the second mesh hole, and further beneficial to reducing the difficulty of water film breakage.

[0020] The second object of the present invention is to provide a clothes dryer that is beneficial to the rapid breakage of the water film on the filter screen.

[0021] To achieve the above object, the clothes dryer provided by the present invention includes the aforementioned clothes drying system.

[0022] As can be seen from the above, due to the adoption of the aforementioned clothes drying system in the clothes dryer of the present invention, when the clothes dryer is operating, the water film on the filter screen can break smoothly, which is beneficial to ensuring the smooth flow of the air flow in the air duct and beneficial to maintaining the good performance of the clothes dryer.

[0023] The third object of the present invention is to provide a washing and drying integrated machine that is beneficial to the rapid breakage of the water film on the filter screen.

[0024] To achieve the above object, the all-in-one washing and drying machine provided by the present invention includes the aforementioned drying system.

[0025] As can be seen from the above, since the all-in-one washing and drying machine of the present invention adopts the aforementioned drying system, when the all-in-one washing and drying machine performs drying operation, the water film on the filter screen can be smoothly broken, which is beneficial to ensuring smooth air flow in the air duct and maintaining good performance of the all-in-one washing and drying machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a partial structural schematic diagram of an embodiment of the drying system of the present invention;

[0027] Figure 2 is a structural diagram of the filter screen in the embodiment of the drying system of the present invention;

[0028] Figure 3 is Figure 2 a partial enlarged view of part A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Embodiment of the drying system:

[0030] Please refer to Figure 1 , the drying system of this embodiment includes a filter screen 1, an air duct 2, a spraying device 3 and a blowing device 4. The filter screen 1 is installed in the air duct 2, and the air flow in the section of the air duct 2 where the filter screen 1 is installed is along the first horizontal direction a.

[0031] Please refer to Figures 1 to 3 , the filter screen 1 includes a base frame 11 and a mesh surface 12. The mesh surface 12 is formed by interweaving fiber strands in the base frame 11. The mesh surface 12 has an angle of 57° with the horizontal plane. The mesh surface 12 includes a first area 121 and a second area 122. The area of the first area 121 is one-twentieth of the area of the entire mesh surface 12. The first area 121 is located at the upper part of the mesh surface 12, and the second area 122 is located at the lower part of the mesh surface 12.

[0032] The first area 121 has a plurality of first mesh holes 1211, and the second area 122 has a plurality of second mesh holes 1221. The cross-sectional area of a single first mesh hole 1211 is 1.5 times that of a single second mesh hole 1221.

[0033] Both the spraying device 3 and the blowing device 4 are fixedly arranged with the air duct 2. For example, when the drying system is applied to an all-in-one washing and drying machine, both the spraying device 3 and the blowing device 4 are fixedly installed on the body of the all-in-one washing and drying machine. The spraying port 31 of the spraying device 3 and the air outlet 41 of the blowing device 4 are both located above the filter screen 1. The spraying port 31 faces the filter screen 1, and the air outlet 41 faces the upper part of the mesh surface 12, that is, the air outlet 41 of the blowing device 4 faces the first area 121 of the mesh surface 12. The filter screen 1 is cleaned by the sprayed water of the spraying device 3, and then the water film on the mesh surface 12 is blown and broken by the air flow generated by the blowing device 4.

[0034] Of course, the spray heads of the spraying device 3 can also be movably arranged with respect to the air duct 2, which facilitates the spraying device 3 to spray at different positions of the mesh surface 12. Similarly, the air outlet components of the blowing device 4 can also be movably arranged with respect to the air duct, which facilitates the blowing device 4 to break the water film at various places on the mesh surface 12.

[0035] Preferably, along the first horizontal direction a, both the spray openings 31 and the air outlet 41 are located downstream of the filter screen 1, which can avoid the influence of impurities such as lint on the performance of the spray openings 31 and the air outlet 41.

[0036] Specifically, Figure 1 This is only a schematic diagram of part of the structure of the clothes drying system. Some sections of the air duct 2, some structures of the spraying device 3, and some structures of the blowing device are not shown in Figure 1 The spraying device 3 and the blowing device 4 are both located outside the air duct 2. The spray openings 31 of the spraying device 3 extend into the air duct 2 through openings on the wall of the air duct 2, and the air outlets 41 of the blowing device 4 extend into the air duct 2 through openings on the wall of the air duct 2. Of course, in other embodiments of the present invention, the spray openings 31 may not extend into the air duct 2, and the spray openings 31 spray water on the filter screen 1 through the openings on the wall of the air duct 2. Similarly, the air outlets 41 may not extend into the air duct 2, and the air outlets 41 blow air on the mesh surface 12 through the openings on the wall of the air duct 2.

[0037] When the clothes dryer is operating, the air flow blowing from left to right along the first horizontal direction a through the air duct 2 often contains impurities such as lint from the clothes. The lint and other impurities are blocked by the filter screen 1. After the lint and other impurities accumulate on the mesh surface 12, the spraying device 3 is used to spray water on the filter screen 1 to clean the mesh surface 12 and keep the mesh surface 12 having good permeability. In the prior art, it is easy to form a water film that is difficult to break after the mesh surface 12 is rinsed with spray water. The inventor found that the reason why the water film on the mesh surface 12 is not easy to break is that the fiber strands forming the mesh surface 12 are relatively thin and very dense, resulting in a large continuous water film interacting with each other on the mesh surface 12, and the large water film is evenly attached to the densely distributed fiber strands everywhere, making the tension of the water film very large. Therefore, the water film is not easy to break under the static pressure in the air duct 2.

[0038] In this embodiment, the cross-sectional area of the first mesh hole 1211 is set to be 1.5 times that of the second mesh hole 1221. In this way, the strands in the first region 121 are relatively sparser than those in the second region 122. The water film in the first region 121 can be stretched thinner, and the adhesion of the strands in the first region 121 to the water film is relatively small. Therefore, the water film in the first region 121 is relatively easier to be blown out. And after the water film in the first region 121 breaks, the entire large water film on the mesh surface 12 is damaged. At this time, the water film in the second region 122 is also likely to be blown out, thereby achieving the purpose of blowing out the entire water film.

[0039] Moreover, due to the action of gravity, the water film on the mesh surface 12 will show a trend of being thinner at the top and thicker at the bottom, that is, the water film on the upper part of the mesh surface 12 is relatively easier to be blown out. Therefore, in this embodiment, by virtue of this trend, the first region 121 is set on the upper part of the mesh surface 12, and the first mesh hole 1211 with a larger cross-sectional area is set in the first region 121. This is conducive to further thinning the water film in the first region 121, further conducive to making the water film in the first region 121 become fragile, and further reducing the difficulty of blowing out the water film in the first region 121.

[0040] The first region 121 is arranged on the upper part of the mesh surface 12 because the water film in the upper region of the mesh surface 12 is inherently thinner under the action of gravity. Of course, the first region 121 can also be arranged at other positions on the mesh surface 12. For example, it is arranged in the middle of the mesh surface 12, and the air outlet 41 of the blowing device 4 is directed towards the middle of the mesh surface 12. In this way, after the mesh surface 12 in the first region 121 breaks, it can drive the filter mesh 1 of the entire mesh surface 12 to break more evenly.

[0041] Preferably, both the first mesh hole 1211 and the second mesh hole 1221 are diamond-shaped holes. One diagonal of the first mesh hole 1211 is along the second horizontal direction ( Figure 1 the direction perpendicular to the drawing plane in the figure), and the other diagonal of the first mesh hole 1211 is along the first direction b. The first direction b has a 57° angle with the negative direction of the first horizontal direction a. The angle between the mesh surface 12 and the horizontal plane is the angle between the first direction b and the negative direction of the first horizontal direction a. The first horizontal direction a is perpendicular to the second horizontal direction. In this way, one sharp angle of the first mesh hole 1211 is inclined downward along the first direction b, which is conducive to increasing the span of the first mesh hole 1211 in the first direction b, conducive to increasing the span of the first mesh hole 1211 in the vertical direction, conducive to making the water film show a trend of being thinner at the top and thicker at the bottom inside the first mesh hole 1211, and further conducive to the water film in the first mesh hole 1211 breaking; similarly, setting the second mesh hole 1221 as a diamond-shaped hole with a sharp angle inclined downward is also conducive to the water film in the second region 122 breaking.

[0042] Preferably, the area of the first region 121 is less than or equal to one-tenth of the total area of the entire mesh surface 12. In this embodiment, the presence of a small area of the first region 121 is sufficient to reduce the difficulty of rupture of the entire water film on the mesh surface 12. If the area of the first region 121 is too large, a large amount of debris such as lint may pass through the first mesh holes 1211, resulting in a decrease in the blocking effect of the mesh surface 12 on debris such as lint. Therefore, in this embodiment, the area of the first region 121 is limited to less than one-tenth of the total area of the mesh surface 12, which is conducive to minimizing the passage of debris such as lint through the filter screen 1 and ensuring the blocking effect of the filter screen 1 on debris such as lint.

[0043] Optionally, there may be two or more first regions 121, so that after the water film in each first region 121 ruptures, it can drive the rupture of the water film on the entire mesh surface 12 more quickly and evenly.

[0044] Specifically, the first mesh holes 1211 are 60-mesh holes, and the second mesh holes 1221 are 120-mesh holes. Preferably, the cross-sectional area of a single first mesh hole 1211 is 1.5 to 2.5 times that of a single second mesh hole 1221. If the cross-sectional area of the first mesh holes 1211 is too large, a large amount of debris such as lint may pass through the first mesh holes 1211, resulting in a significant decrease in the blocking effect of the filter screen 1 on debris such as lint. Of course, if the cross-sectional area of the first mesh holes 1211 is too small, the difficulty of water film rupture at the first mesh holes 1211 will increase. Therefore, in this embodiment, the cross-sectional area of the first mesh holes 1211 is limited to be between 1.5 and 2.5 times that of the second mesh holes 1221. This is not only conducive to minimizing the passage of debris such as lint through the filter screen 1 and ensuring the blocking effect of the filter screen 1 on debris such as lint, but also conducive to reducing the difficulty of water film rupture.

[0045] Optionally, please refer to Figure 3 , the diameter of the wire strand 123 separating the first region 121 and the second region 122 is less than or equal to 2 times the diameter of the other wire strands 124 forming the mesh surface 12. Preferably, the diameter of the wire strand 123 is 0.5 to 1.5 times the diameter of the wire strand 124. Since the wire strand 123 is separated between the first region 121 and the second region 122, the wire strand 123 needs to bear a relatively large load, so the diameter of the wire strand 123 is generally large. However, if the diameter of the wire strand 123 is too large, it will have a strong blocking effect on the sprayed water, which is not conducive to the downward flow of the sprayed water along the first direction b on the mesh surface 12, and may also cause the water film in the second region 122 not to rupture smoothly after the water film in the first region 121 ruptures. Therefore, in the present invention, the diameter of the wire strand 123 is set to be less than or equal to 2 times the diameter of the wire strand 124. Of course, the diameter of the wire strand 123 can be reduced by using a wire strand material with higher strength to make the wire strand 123.

[0046] Optionally, the installation angle of the filter screen 1 in the air duct 2 can also be adjusted with reference to the prior art. For example, the angle between the mesh surface 12 and the horizontal plane is set to 45°, 60°, etc.

[0047] Dryer embodiment:

[0048] The dryer of this embodiment includes the aforementioned drying system. Due to the adoption of the aforementioned drying system in the dryer of this embodiment, when the dryer is running, the water film on the filter screen can break smoothly, which is beneficial to ensuring smooth air flow in the air duct and maintaining good performance of the dryer.

[0049] Laundry dryer integrated machine embodiment:

[0050] The laundry dryer integrated machine of this embodiment includes the aforementioned drying system. Due to the adoption of the aforementioned drying system in the laundry dryer integrated machine of this embodiment, when the laundry dryer integrated machine is running for drying, the water film on the filter screen can break smoothly, which is beneficial to ensuring smooth air flow in the air duct and maintaining good performance of the laundry dryer integrated machine.

[0051] Finally, it should be emphasized that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A drying system, comprising a filter screen, an air duct and a spraying device, wherein the filter screen is installed in the air duct, the filter screen includes a base frame and a mesh surface disposed within the base frame, and the spraying port of the spraying device faces the mesh surface; It is characterized in that: The mesh surface has a first region and a second region. A plurality of first mesh holes are distributed in the first region, and a plurality of second mesh holes are distributed in the second region. The cross-sectional area of a single first mesh hole is larger than that of a single second mesh hole. The area of the first region is less than or equal to one-tenth of the total area of the mesh surface; The drying system further includes a blowing device, and the air outlet of the blowing device faces the first region.

2. The drying system according to claim 1, characterized in that: The cross-sectional area of a single first mesh hole is 1.5 to 2.5 times that of a single second mesh hole.

3. The drying system according to claim 1, characterized in that: There are at least two first regions, and the sum of the areas of the first regions is less than or equal to one-tenth of the total area of the mesh surface.

4. The drying system according to claim 1, characterized in that: The mesh surface is formed by interweaving strands of wire. The diameter of the strands separating the first region and the second region is less than or equal to twice the diameter of the other strands forming the mesh surface.

5. The drying system according to any one of claims 1 to 3, characterized in that: The mesh surface intersects with the horizontal plane, and the first region is located in the upper part of the mesh surface.

6. The drying system according to claim 5, characterized in that: The cross-sectional shape of the first mesh hole is diamond-shaped, and one diagonal of the first mesh hole is in the horizontal direction; and / or the cross-sectional shape of the second mesh hole is diamond-shaped, and one diagonal of the second mesh hole is in the horizontal direction.

7. A dryer, characterized in that: Comprising the drying system according to any one of claims 1 to 6.

8. A washing and drying integrated machine, characterized in that: Comprising the drying system according to any one of claims 1 to 6.

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